I-Thermoplastic Elastomers (TPE), ngamanye amaxesha kuthiwa ziiRubha zeThermoplastic (TPR), ludidi lwee-copolymers okanye imixube ebonakalayo yeepolymers-ngokuqhelekileyo iplastiki kunye nerabha-edibanisa iipropathi ze-thermoplastics kunye ne-elastomers.. Le ndibaniselwano yahlukileyo ivumela ii-TPE ukuba ziqwalaselwe njenge-thermoplastics (nge-extrusion, isitofu sokubumba, ukubumba ukuvuthela, njl.) ngelixa ugcina i-elasticity kunye nokuguquguquka kweerubha. Ngokungafaniyo neerabha zemveli ezivulnisiweyo, Ii-TPE zinokunyibilika kwaye ziphinde zenziwe kwakhona ngamaxesha amaninzi ngaphandle kwelahleko enkulu yokusebenza, ukwenza ukuba zikhuseleke ngakumbi kokusingqongileyo kwaye zingabizi kakhulu. Njengemfuno ekhaphukhaphu, bhetyebhetye, kunye nemathiriyeli enokuphinda isetyenziswe ikhula kuwo wonke amashishini afana neemoto, zombane, ukwakhiwa, kunye nempahla yabathengi, Ii-TPE ziye zanda kakhulu, ukuqhuba uphuhliso lwe-masterbatch ekhethekileyo kunye ne-extrusion technologies elungiselelwe iimfuno zabo ezizodwa zokusetyenzwa.
Masterbatch, njengento ephambili yokwenza imibala kunye nokuguqulwa okusebenzayo kwee-TPE, idlala indima ebalulekileyo ekwandiseni ukusebenza kunye nokwandisa umda wosetyenziso lweemveliso zeTPE. Ukusetyenzwa kwe-TPE masterbatch kufuna ulawulo oluchanekileyo lokuxuba, ukusasaza, kunye neeparamitha zobushushu, njengoko ii-TPE zine-viscosity ethile, ukumelana nobushushu, kunye neempawu zokunwebeka okwahlukileyo kwiiplastiki zemveli. I-twin-screw extruders, ngobuchule babo obuphezulu bokuxuba kunye nokusabalalisa, ulawulo lobushushu oluchanekileyo, kunye nokuziqhelanisa nezixhobo ezahlukeneyo, zibe sesona sixhobo siphambili se-TPE masterbatch. Zhuoyue, umenzi oqeqeshiweyo we-twin-screw extruders, inikeza uluhlu olupheleleyo lwezisombululo ze-extrusion eziphambili ezilungiselelwe ngokukodwa i-TPE yokudibanisa kunye nokusebenza kwe-masterbatch, ezigubungela TPE/SBS/TPU/TPR/TPV kunye nezinye iindidi eziphambili TPE, ukuhlangabezana neemfuno ezahlukeneyo zabavelisi kumashishini ahlukeneyo.
1. Isishwankathelo seThermoplastic Elastomers (TPE): Iindidi, Iipropati kunye neempawu eziphambili
Ii-TPE zilusapho olwahlukeneyo lwemathiriyeli, zihlelwe ngokweendidi ezintandathu zorhwebo ngokubanzi ngokusekelwe kukwakheka kweekhemikhali kunye nolwakhiwo. Icandelo ngalinye lineempawu ezizodwa, iimpawu zokuqhuba, kunye nemimandla yesicelo, emisela ngokuthe ngqo iimfuno zokuqulunqwa kwe-masterbatch kunye nezixhobo ze-extrusion. Ukuqonda ulwahlulo kunye neempawu ze-TPEs sisiseko sokwenza i-masterbatch processing kunye nokukhetha i-twin-screw extruders ezifanelekileyo..
1.1 Iindidi ezintandathu zoRhwebo ngokubanzi zeeTPEs
1.1.1 I-Styrenic Block Copolymers (TPS, TPE-s).
I-TPS lolona didi lusetyenziswa kakhulu kwii-TPE, Ukubalwa kwesabelo esikhulu kwimakethi ye-TPE yehlabathi. Iqulunqwe ngeebhloko ze-styrenic (njenge polystyrene, PS) kunye neebhloko ze-elastomeric (njenge polybutadiene, PB; polyisoprene, PI; okanye i-ethylene-butylene, EB), idityaniswe ngamabhondi e-covalent. Iintlobo eziqhelekileyo ze-TPS ziquka i-SBS (I-Styrenes-Butadienes-Styrenes), SIS (I-Styrene-Isoprene-Styrene), SEBS (I-Styrene-Ethylene-Butylene-Styrene), kunye neSEPS (I-Styrene-Ethylene-Propylene-Styrene).
Iimpawu eziphambili ze-TPS ziquka ukuguquguquka okugqwesileyo, ukuqina, kunye nokuqhubekeka. SEBS kunye SEPS, eziziinguqulelo ze-hydrogenated ze-SBS kunye ne-SIS, baye baphucula ukumelana nobushushu, ukumelana nemozulu, kunye nokumelana nokuguga, ukwenza ukuba zilungele izicelo zangaphandle kunye nobushushu obuphezulu. Izinto ze-TPS zinemibala ngokulula kwaye ziguqulwe nge-masterbatch, kunye nobushushu bokusebenza kwabo busuka kwi-150℃ ukuya kuma-220℃, ehambelana ne-twin-screw extruders ezininzi. Usetyenziso oluqhelekileyo lwe-TPS lubandakanya amacandelo emoto, iingcingo kunye neentambo, Impahla zomthengi, kunye nezixhobo zonyango.
1.1.2 Thermoplastic Polyolefin Elastomers (TPO, TPE-o).
I-TPO yindibaniselwano ebonakalayo ye-polyolefin (njenge polypropylene, PP; okanye i-polyethylene, PE) kunye ne-elastomer (njenge-ethylene-propylene-diene monomer, EPDM). Idibanisa ukuqina kwe-polyolefins kunye nokuqina kwee-elastomers, kwaye inokumelana nekhemikhali ebalaseleyo, ukumelana nemozulu, kunye nokuguquguquka kobushushu obuphantsi. I-TPOs ayinayo ityhefu, engenavumba, kwaye inokuphinda isetyenziswe, izenza zilungele usetyenziso olufuna ukulungelelana kokusingqongileyo.
Ubushushu bokusebenza be-TPO busuka kwi-160 ℃ ukuya kwi-230 ℃, kwaye iyahambelana kakuhle nee-masterbatches ezahlukeneyo (umbala masterbatch, i-masterbatch enedangatye, njl.). Ii-TPO zisetyenziswa kakhulu kwiindawo zangaphandle zemoto (ezifana nezigqubuthelo zebhampa, fender liners), izinto zokwakha (njengamatywina, iigaskets), kunye namacandelo ombane. Ngenxa yomxholo wabo ophezulu we-polyolefin, Ukusetyenzwa kwe-TPO masterbatch kufuna i-extruders enobuchule obuhle bokuxuba ukuqinisekisa ukusasazwa okufanayo kwee-pigments kunye nezongezo..
1.1.3 Thermoplastic Vulcanisates (I-VAT, TPE v).
I-TPV ngumdibaniso oguqukayo we-polyolefin (ngokuqhelekileyo PP) kunye ne-elastomer (ngokuqhelekileyo EPDM). Ngexesha lokucubungula, Isigaba se-elastomer sihlanjululwa sibe ngamasuntswana amancinci kwaye sisasazwe ngokufanayo kwimatriksi yepololefin., kubangele ukuqina okugqwesileyo, uxinzelelo iseti ukumelana, kunye nokumelana nobushushu. Ii-TPV zineempawu ezingcono zoomatshini kunye nozinzo lwe-dimensional kunee-TPE zemveli, kwaye inokumelana nokuvezwa kwexesha elide lobushushu obuphezulu (ukuya kuthi ga kwi-150 ℃).
Ukusetyenzwa kwe-TPV kufuna ulawulo oluchanekileyo lobushushu kunye ne-shear force eyomeleleyo yokuqinisekisa i-vulcanization efanayo kunye nokusasazwa. Ubushushu bokusebenza busuka kwi-170℃ ukuya kwi-240℃, kwaye izinto eziphathekayo zine-viscosity ephezulu ngexesha lokucubungula, ebeka iimfuno eziphezulu kwi-torque kunye nokumelana nokunxiba kwe-twin-screw extruders. Ii-TPV zisetyenziswa ngokubanzi kwiimpawu zemoto, imibhobho, iigaskets, kunye namacandelo amashishini afuna ukusebenza okuphezulu kunye nokuqina.
1.1.4 Thermoplastic Polyurethanes (TPU).
I-TPU yibhloko ye-copolymer eyenziwe ngamacandelo anzima (diisocyanate kunye nechain extender) kunye namacandelo athambileyo (ipolyol). Inothambileyo obalaseleyo, ukuxhathisa kwe-abrasion, ukumelana neoli, kunye namandla oomatshini, kwaye inokulungiswa ngobulukhuni ukusuka kwithambile kakhulu (Unxweme A 30) ukuba nzima kakhulu (Unxweme D 85) ngokuguqula umlinganiselo wamacandelo anzima nathambileyo.
Ukusetyenzwa kwe-TPU kunovakalelo kubushushu kunye nokufuma. Ubushushu bokusebenza busuka kwi-180℃ ukuya kwi-250℃, kwaye izinto kufuneka zomiswe kakuhle phambi kokuba zilungiswe (umxholo wokufuma ≤0.05%) ukuphepha i-hydrolysis kunye nokwakheka kwe-bubble. Ukusetyenzwa kwe-TPU masterbatch kufuna ii-extruders ezinolawulo oluchanekileyo lobushushu kunye nesakhono sokukhupha ivacuum. I-TPU isetyenziswa ngokubanzi kwiingcingo kunye neentambo, imibhobho yeemoto, izihlangu, catheters zonyango, kunye nezixhobo zemidlalo.
1.1.5 I-Thermoplastic Copolyesters (TPC, TPE-E).
I-TPC yibhloko ye-copolymer eyenziwe ngamacandelo e-polyester aqinileyo kunye ne-polyether okanye i-polyester ethambileyo yamacandelo.. Inokumelana nobushushu obugqwesileyo, ukumelana neekhemikhali, kunye neempawu zoomatshini, kwaye inokumelana nobushushu obuphezulu ukuya kuthi ga kwi-150℃ ixesha elide. Ii-TPC zikwanazo nokuguquguquka okuhle kunye nokunwebeka, ukubenza bafanelekele izicelo zokusebenza eziphezulu.
Ubushushu bokusebenza be-TPC buqala kwi-220℃ ukuya kwi-280℃, engaphezulu kunezinye iindidi ze-TPE. Ine-viscosity ephezulu ngexesha lokucubungula kwaye ifuna i-extruders ene-torque ephezulu kunye nokulawula ubushushu obuchanekileyo. Ukusetyenzwa kwe-masterbatch ye-TPC kukwafuna ingqwalasela eyodwa ekusasazweni kwee-pigments kunye nezongezo zokuthintela ukuchaphazela iipropathi zoomatshini.. Ii-TPC zisetyenziswa kakhulu kumacandelo eemoto (njengemibhobho yokungenisa umoya, ukuhanjiswa kwetywina), iindawo ze-aerospace, kunye noomatshini bemizi-mveliso.
1.1.6 I-Thermoplastic Polyamides (TPA, TPE-A).
I-TPA yibhloko ye-copolymer eyenziwe ngamacandelo aqinile e-polyamide kunye namacandelo athambileyo e-polyether.. Idibanisa amandla aphezulu, nxiba ukumelana, kunye nokumelana neekhemikhali ze-polyamides kunye nokuguquguquka kunye nokuqina kweepolyethers. I-TPA inokumelana nempembelelo ebalaseleyo kunye nokusebenza kobushushu obuphantsi, kwaye ingasetyenziswa kwiindawo ezirhabaxa.
Ubushushu bokusebenza be-TPA busuka kwi-230℃ ukuya kwi-290℃, kwaye ifunxa kakhulu amanzi, ifuna ukomiswa ngokucokisekileyo phambi kokulungiswa. Ukusetyenzwa kwe-TPA masterbatch kufuna i-extruders enokumelana nokunxiba okuphezulu (ngenxa yokuqina okuphezulu kwepolyamide) kunye nolawulo oluchanekileyo lobushushu ukunqanda ukuthotywa kwezinto. I-TPA isetyenziswa ngokubanzi kumacandelo eemoto (njengeegiya, iibheringi), izihlanganisi zombane, kunye nemibhobho yemizi-mveliso.
1.2 Iimpawu eziphambili zeeTPE ezichaphazela i-Masterbatch Processing
Ii-TPE zineempawu ezizodwa ezahlula kwiiplastiki zemveli, kwaye ezi zakhiwo zichaphazela ngokuthe ngqo ukuqulunqwa kwe-masterbatch kunye nokukhethwa kwezixhobo ze-extrusion. Iimpawu eziphambili zokuqwalasela kwi-masterbatch processing zilandelayo:
1.2.1 Ukuqina kunye nokuguquguquka.
Ii-TPE zine-elasticity ephezulu kunye nokuguquguquka, oku kuthetha ukuba i-masterbatch kufuneka ihambelane ne-TPE matrix ukunqanda ukunciphisa ukusebenza kwe-elastic.. Umthwali we-masterbatch kufuneka ahambelane kakuhle ne-TPE, kwaye i-disperant kufuneka iqinisekise ukusasazwa okufanayo kweepigments ngaphandle kokwenza i-agglomerates enokubangela uxinzelelo kunye nokunciphisa ukuguquguquka..
1.2.2 Ukumelana nobushushu.
Iindidi ezahlukeneyo ze-TPE zinokuxhathisa ubushushu okwahlukileyo (ubushushu bokusebenza busuka kwi-150℃ ukuya kwi-290℃). I-Masterbatch pigments kunye ne-additives kufuneka ibe nokuxhathisa ubushushu okuhambelana nobushushu bokulungiswa kwe-TPE ukunqanda ukubola, ukuguquka kwebala, okanye ukuthotywa komgangatho wokusebenza ngexesha le-extrusion. Umzekelo, I-TPC kunye ne-TPA zifuna i-pigments ekwazi ukumelana nobushushu obuphezulu kunye nezinzisi zobushushu.
1.2.3 Viscosity kunye Processability.
Ii-TPE zine-viscosity ezahlukeneyo ngexesha lokucubungula (I-TPV kunye ne-TPC zine-viscosity ephezulu, ngelixa i-TPS ine-viscosity ephantsi). Oku kuchaphazela amandla okucheba kunye nokuhambisa iimfuno ze-twin-screw extruder. Ii-TPE ze-viscosity eziphezulu zifuna i-extruders ene-torque ephezulu kunye nokukwazi ukuxuba okunamandla, ngelixa ii-TPE ze-viscosity ephantsi zifuna ulawulo oluchanekileyo lwesantya se-extrusion ukuphepha ukuphuphuma kwezinto.
1.2.4 Ukufunxa ukufuma.
Ezinye ii-TPEs (njenge TPU, TPA) abe nokufunxa okuphezulu kwamanzi, ezinokubangela amaqamza, i-hydrolysis, kunye nezinye iziphene kwi-masterbatch. Iimathiriyeli ekrwada (TPE, ibala, izongezo) must be thoroughly dried before processing, and the extruder should be equipped with a vacuum exhaust device to remove moisture and volatile substances.
1.2.5 Compatibility with Additives.
TPEs often require functional additives (such as antioxidants, Izinzisi ze-UV, izinto zokuthambisa) to improve their performance. The masterbatch should be formulated to ensure that the additives are compatible with both the pigments and the TPE matrix, avoiding chemical reactions that could affect product quality.
2. Masterbatch for TPEs: Composition, Formulation and Processing Requirements
Masterbatch for TPEs is a concentrated mixture of pigments/dyes, carriers, kunye nezongezo, designed to color TPEs and impart additional functions (njengokunqanda amadangatye, antistatic, antibacterial) while maintaining the material’s inherent elastic and processing properties. Ukuqulunqwa kunye nokusetyenzwa kwe-TPE masterbatch kufuna kakhulu kunezo zeplastiki zemveli, ngenxa yeempawu ezizodwa zeeTPEs. Eli candelo lichaza ukwakheka, imigaqo yokwenziwa, kunye neemfuno zokusetyenzwa kwe-TPE masterbatch.
2.1 Ukuqulunqwa okungundoqo kwe-TPE Masterbatch
Njenge-masterbatch yemveli, TPE masterbatch inamacandelo amathathu asisiseko: ibala/idayi, carriers, kunye nezongezo. Ukukhethwa kunye nomlinganiselo wecandelo ngalinye lilungelelaniswa nohlobo lweTPE kunye neemfuno zayo zokusetyenziswa.
2.1.1 Ii-pigments / iidayi.
Ii-pigments/iidayi zezona zinto zinika umbala kwiiTPEs, ukubalwa kwemali 10%-70% yokwakheka kwe-masterbatch (ngokuxhomekeke kubukhulu bombala kunye nodidi lweTPE). Iimfuno eziphambili ze-pigments / idayi kwi-TPE masterbatch zezi:
- – Ukumelana nobushushu: Kufuneka imelane nobushushu bomsebenzi we-TPE ekujoliswe kuyo (150℃-290℃) ngaphandle kokubola okanye ukuguquka kwebala. Kwii-TPE zobushushu obuphezulu (TPC, TPA), i-pigments yezinto eziphilayo ezinobushushu obuphezulu okanye i-inorganic pigments iyakhethwa.
- – Ukuhambelana: Kufuneka ihambelane ne-TPE matrix ukunqanda ukufuduka, ukuqhakaza, okanye ukuncipha kwe-elasticity. Ii-pigments ezine-polarity efanayo kwi-TPE zihambelana ngakumbi (umz., umbala omhlophe we-TPU, iipigments non-polar for TPS).
- – Ukusasazeka: Kufuneka isasazwe ngokulula kwi-matrix ye-TPE ukuqinisekisa umbala ofanayo kunye nokuphepha amabala ombala, imivimbo, okanye ukuncitshiswa kweempawu zoomatshini. Ii-pigments ze-fine-particle (20-40 umnatha) kunye ne-agglomeration ephantsi iyakhethwa.
- – Ubuhlobo bendalo: Kufuneka ihlangabezane nemigangatho yokukhuselwa kwendalo yehlabathi (ezinje nge REACH, RoHS) ukuphepha izinto eziyityhefu okanye eziyingozi (njengeentsimbi ezinzima) ezinokuchaphazela impilo yabantu kunye nokusingqongileyo.
Imibala eqhelekileyo esetyenziswa kwi-TPE masterbatch ibandakanya: i-pigments ye-inorganic (titanium dioxide kumhlophe, carbon black for black, i-iron oxide ebomvu/etyheli), kunye neepigments eziphilayo ezikwaziyo ukumelana nobushushu obuphezulu (phthalocyanine blue/green, i-quinacridone ebomvu).
2.1.2 Abathwali.
Abathwali yimatrix ye-masterbatch, ukubalwa kwemali 20%-80% yokwakheka, kwaye udlale indima ephambili ekusasazeni ii-pigments kunye nokubambelela kwi-matrix ye-TPE. Umthwali kufuneka abe nokuhambelana okugqwesileyo kuzo zombini ii-pigments kunye ne-TPE ekujoliswe kuyo, njengoko ukungahambelani kakuhle kunokukhokelela ekufudukeni kwe-pigment, umbala ongalinganiyo, kunye nokunciphisa ukusebenza kwe-TPE. Ukhetho lomthwali lusekwe kuhlobo lweTPE:
- – YeTPS (SBS, SEBS): Sebenzisa i-TPS okanye i-PP njengomphathi, enokuhambelana kakuhle kunye nokusetyenzwa kwamanzi.
- – YeTPO/TPE-o: Sebenzisa i-PP okanye i-PE njengomphathi, ukuthelekisa icandelo le-polyolefin ye-TPO.
- – Ye-TPV/TPE-v: Sebenzisa iPP njengomphathi, ehambelana ne-PP matrix ye-TPV.
- – YeTPU: Sebenzisa i-TPU njengomphathi, ukuqinisekisa ukuhambelana ne-TPU matrix kunye nokuphepha i-hydrolysis.
- – Ye-TPC/TPE-E kunye ne-TPA/TPE-A: Sebenzisa i-TPC okanye i-TPA njengomthwali, ngokulandelelanayo, ukuhambelana neemfuno zokucwangcisa ubushushu obuphezulu kunye nokuhambelana.
Umthwali kufuneka kwakhona abe nokucutshungulwa okulungileyo, ngeqondo lokunyibilika kunye nobushushu bokusebenza obuhambelanayo okanye obusezantsi kancinci kuneTPE ekujoliswe kuyo, ukuqinisekisa ukuxubana okufanayo kunye nokuphepha ukuthotywa kwe-TPE.
2.1.3 Izongezo.
Izongezo zizinto ezincedisayo ezidityanisiweyo ukuphucula umsebenzi wokucubungula, ukusasazeka, kunye nokusebenza okusebenzayo kwe-TPE masterbatch, ukubalwa kwemali 1%-10% yokwakheka. Uhlobo kunye nomthamo wezongezo zichongwa luhlobo lweTPE kunye neemfuno zesicelo:
- – Abasasaza: Esona songezo sibalulekileyo se-TPE masterbatch, isetyenziselwa ukunciphisa i-pigment surface tension, ukuthintela ukuhlangana, kunye nokuqinisekisa ukusasazwa okufanayo kwi-matrix ye-TPE. Ii-dispersants eziqhelekileyo ziquka i-polyethylene wax, polypropylene wax, acid stearic, kunye neewax ezimiliselwe i-anhydride. Kwii-TPE ze-viscosity eziphezulu (I-VAT, TPC), ii-dispersants eziphezulu kunye nokuhambelana okuqinileyo kuyakhethwa.
- – Abahambelanayo: Isetyenziselwa ukuphucula ukuhambelana phakathi kwee-pigments kunye nee-TPE, naphakathi kwe-masterbatch kunye ne-TPE matrix. Umzekelo, i-anhydride ye-anhydride emiliselwe i-PP isetyenziswa njenge-compatibilizer ye-TPO masterbatch, kunye newax yepolyurethane isetyenziselwa iTPU masterbatch.
- – Izinzisi zobushushu: Isetyenziselwa ukuthintela ukubola kwe-pigment kunye nokuthotywa kwe-TPE ngexesha lokulungiswa kobushushu obuphezulu. Izinzisi zobushushu eziqhelekileyo ziquka izizinzi ze-organic tin (yeTPU), ithintele i-phenol antioxidants (ye TPS, TPO), kunye ne-phosphite antioxidants (ye TPC, TPA).
- – I-UV Stabilizers kunye ne-Antioxidants: Isetyenziselwa ukuphucula ukumelana nemozulu kunye nokumelana nokuguga kweemveliso ezinemibala ye-TPE, ukuthintela ukubola kombala kunye nokuthotywa kokusebenza phantsi kokukhanya kwelanga kunye neoksijini. Ngezicelo zangaphandle (ezifana namalungu emoto angaphandle), Izithambisi ze-UV kunye nezithinteli zokuzinzisa ukukhanya kwe-amine (IHALS) zongezwa.
- – Izithambisi: Isetyenziselwa ukunciphisa ingxabano phakathi kwezixhobo kunye nezixhobo ze-extrusion (isikrufu, umphanda, fa intloko), ukuphucula ukusetyenzwa kwamanzi, kwaye uphephe izinto ezinamathele kwisixhobo. Izithambiso eziqhelekileyo ziquka i-stearic acid, calcium stearate, kunye neoli ye-silicone. YeTPU kunye neTPA, izinto zokuthambisa ezinokufuduka okuphantsi zikhethwa ukuphepha ukuchaphazela ukusebenza kwemveliso.
- – Izongezo ezisebenzayo: Yongezwe ukunika imisebenzi ekhethekileyo kwiiTPEs, ezinje ngeentonga zomlilo (iingcingo kunye neentambo), ii-antistatic agents (kumacandelo ombane), kunye ne-antibacterial agents (kwizixhobo zonyango kunye nempahla yabathengi).
2.2 Uqulunqo lwemigaqo ye-TPE Masterbatch
Ukuqulunqwa kwe-TPE masterbatch kufuneka ibhalansi isiphumo sombala, ukucubungula ukusebenza, kunye neepropati ze-TPE zendalo. The key principles are as follows:
2.2.1 Compatibility First.
The carrier, ibala, and additives must be compatible with the target TPE to avoid reducing the material’s elasticity, ukuba bhetyebhetye, kunye neempawu zoomatshini. Umzekelo, using a non-polar carrier for polar TPU will lead to poor compatibility and pigment migration.
2.2.2 Match Heat Resistance.
The pigments and additives must have heat resistance matching the TPE processing temperature. Umzekelo, TPC masterbatch uses high-temperature resistant pigments (heat resistance ≥280℃) to avoid decomposition during processing.
2.2.3 Optimize Dispersibility.
The pigment content and dispersant dosage are adjusted to ensure uniform dispersion. High-concentration masterbatch (pigment content 50%-70%) requires more dispersants and better mixing capabilities, while low-concentration masterbatch (10%-30%) focuses on compatibility.
2.2.4 Minimize Impact on TPE Properties.
I-masterbatch ayifanele ichaphazele kakhulu ukuqina kwe-TPE, iseti yoxinzelelo, okanye ukuxhathisa i-abrasion. Umzekelo, ii-dispersants ezigqithisileyo okanye izithambiso zinokunciphisa amandla omatshini we-TPE.
2.2.5 Ukuthotyelwa koKhuseleko lweNdalo.
Uqulunqo kufuneka luhambelane nemigangatho yokukhuselwa kokusingqongileyo kwihlabathi, ukuphepha izinto eziyityhefu okanye eziyingozi (njengeentsimbi ezinzima, iiphthalates) oko kunokuthintela ukufikelela kwimarike.
2.3 IiMfuno zokuSebenza ze-TPE Masterbatch
I-TPE masterbatch processing yenziwa ikakhulu kusetyenziswa iteknoloji ye-twin-screw extrusion, efuna ulawulo olungqongqo lwe-pretreatment ekrwada, premixing, iparameters extrusion, kunye ne-post-processing ukuqinisekisa umgangatho wemveliso. Iimfuno eziphambili zokucwangcisa zezi zilandelayo:
2.3.1 Ukunyangwa kweMathiriyeli ekrwada.
TPEs (ngakumbi iTPU, TPA) abe nokufunxa okuphezulu kwamanzi, ngoko zonke izinto ekrwada (Umphathi we-TPE, ibala, izongezo) must be thoroughly dried before processing. Iqondo lokushisa lokumisa kunye nexesha lichongwa luhlobo lwezinto eziphathekayo: TPU/TPA is dried at 100-120℃ for 6-8 iiyure, TPS/TPO is dried at 80-100℃ for 3-5 iiyure, and pigments are dried at 60-80℃ for 2-4 iiyure. The moisture content of dried raw materials should be controlled below 0.1% (0.05% for TPU/TPA).
Ukwengeza, pigments with large particle sizes or agglomerates should be crushed and sieved (20-40 umnatha) to improve dispersibility, and impurities (metal particles, uthuli) should be removed to avoid wear on extrusion equipment and defects in masterbatch.
2.3.2 Premixing.
The dried raw materials (ibala, carrier, izongezo) are mixed in a high-speed mixer according to the formula ratio to form a uniform preliminary mixture. The premixing parameters are adjusted based on the TPE type: mixing speed 800-1200 rpm, ixesha lokuxuba 5-10 imizuzu, mixing temperature 40-60℃. For high-concentration masterbatch or high-viscosity TPE carriers, the premixing time is extended, and dispersants are added first to coat the pigments, improving dispersibility.
2.3.3 Extrusion Parameters Control.
Twin-screw extrusion is the core step of TPE masterbatch processing, and the key parameters (ubushushu, isantya sokujija, uxinzelelo lwe-extrusion, feeding speed) must be precisely controlled to match the TPE type:
- – Ulawulo lobushushu: The barrel is divided into 4-6 amacandelo okulawula ubushushu (icandelo lokutyisa, icandelo lokunyibilika, icandelo lokuxuba, icandelo le-homogenizing, icandelo lentloko yokufa). The temperature of each section is adjusted according to the TPE processing temperature. Umzekelo, TPS masterbatch: feeding section 100-120℃, melting section 160-180℃, mixing section 170-190℃, homogenizing section 160-180℃, die head section 150-170℃; TPC masterbatch: feeding section 150-170℃, melting section 230-250℃, mixing section 240-260℃, homogenizing section 230-250℃, die head section 220-240℃. The temperature control precision should reach ±1℃ to avoid TPE degradation and pigment decomposition.
- – Isantya seScrew: The screw speed ranges from 200-800 rpm, adjusted based on TPE viscosity. High-viscosity TPEs (I-VAT, TPC) require higher screw speed (500-800 rpm) to generate sufficient shear force for pigment dispersion; low-viscosity TPEs (TPS) use moderate speed (300-500 rpm) to avoid material overflow.
- – Uxinzelelo lwe-Extrusion: The pressure ranges from 5-12MPa, kept stable (fluctuation ≤±0.5MPa) to ensure uniform mixing and shaping. High-viscosity TPEs require higher pressure, while low-viscosity TPEs use moderate pressure.
- – Feeding Speed: Adjusted to match the screw speed and extrusion speed, ensuring stable and uniform feeding. Kwii-TPE ze-viscosity eziphezulu, a forced feeding device is used to avoid material accumulation.
2.3.4 Post-Processing.
After extrusion, the strip-shaped masterbatch is cooled (water tank cooling, 20-30℃), granulated (particle size 2-5mm), screened (to remove unqualified particles), and packaged (sealed and moisture-proof packaging). For moisture-sensitive TPE masterbatch (TPU, TPA), the finished product is dried again before packaging to prevent moisture absorption.
3. Application Fields of TPE Masterbatch and Matching Zhuoyue Extruder Solutions
TPEs are widely used in automotive, zombane, ukwakhiwa, Impahla zomthengi, and other industries, and different application fields have different requirements for TPE masterbatch performance (umbala, ukusasazeka, functionality) and production efficiency. Zhuoyue’s full series of twin-screw extruders (HTS BASIC/PLUS/SUPER, ZTE, HTE) are specially optimized for TPE masterbatch processing, providing targeted solutions for different TPE categories and application fields. Below is a detailed introduction to the main application fields of TPE masterbatch and the matching Zhuoyue extruder series.
3.1 Ushishino lweemoto: The Largest Application Field of TPE Masterbatch
Ushishino lweemoto ngoyena mthengi mkhulu weeTPEs, ukubalwa ngaphezulu kwe 40% of the global TPE market. TPEs are used in a wide range of automotive components due to their lightweight, bhetyebhetye, and recyclable properties, and TPE masterbatch plays a key role in coloring and functional modification of these components. The main automotive applications of TPE masterbatch include:
3.1.1 Automotive Seals and Gaskets.
TPEs (mainly TPV, TPO) are used to produce automotive door seals, amatywina efestile, hood seals, kunye neegaskets, which require good elasticity, ukumelana nemozulu, kunye nokuguquguquka kobushushu obuphantsi. The masterbatch for these components requires uniform coloring, good weather resistance (Ukumelana ne-UV, aging resistance), and compatibility with TPV/TPO matrices.
Matching Extruders: HTS PLUS series and HTE series. The HTS PLUS series has high torque and wear resistance, suitable for TPV masterbatch processing (viscosity ephezulu, high shear force required); the HTE series integrates high performance and cost-effectiveness, suitable for TPO masterbatch processing, with good mixing dispersibility and energy-saving advantages.
3.1.2 Automotive Interior Components.
TPEs (mainly TPS, TPU) are used to produce automotive interior components such as instrument panel skins, iipaneli zomnyango, steering wheel covers, and armrests, which require good flexibility, soft touch, and environmental friendliness (non-toxic, engenavumba). The masterbatch requires bright colors, uniform dispersibility, and no migration (to avoid staining other interior components).
Matching Extruders: HTS BASIC series and HTE series. The HTS BASIC series is cost-effective, suitable for small and medium-sized manufacturers producing TPS interior masterbatch; the HTE series has good mixing dispersibility and low energy consumption, suitable for large-scale production of TPU/TPS interior masterbatch.
3.1.3 Automotive Hoses and Tubing.
TPEs (mainly TPU, TPC, TPA) are used to produce automotive fuel hoses, air intake hoses, and brake hoses, which require good oil resistance, ukumelana nobushushu, kunye namandla oomatshini. The masterbatch requires high-temperature resistance, ukumelana neoli, and uniform dispersibility to avoid affecting the hose’s performance.
Matching Extruders: HTS SUPER series and HTS PLUS series. The HTS SUPER series has ultra-high torque, ulawulo lobushushu oluchanekileyo, and high wear resistance, suitable for TPC/TPA masterbatch processing (ubushushu obuphezulu, viscosity ephezulu); the HTS PLUS series has good heat resistance and mixing capabilities, suitable for TPU masterbatch processing.
3.1.4 Other Automotive Components.
TPEs are also used to produce automotive dust covers, triangle windows, air filters, and breakers, which require different properties (such as dust resistance, ukungafihli, ukumelana nefuthe). The masterbatch is formulated according to specific requirements, and the matching extruders are selected based on TPE type and production scale.
3.2 Electrical and Electronic Industry: Functional TPE Masterbatch Applications
The electrical and electronic industry is another important application field of TPEs, where TPEs are used to produce wires and cables, izihlanganisi, and other components, requiring functional masterbatch (antistatic, ukunqanda amadangatye, high-temperature resistant) to meet safety and performance requirements.
3.2.1 Wires and Cables.
TPEs (mainly TPU, TPS, TPO) are used as insulation and sheath materials for wires and cables (power cables, ignition wires, headphone wires, connector plugs), which require good electrical insulation, ukusilela komlilo, kunye nokuxhathisa i-abrasion. The masterbatch requires flame retardancy (meeting UL94 V-0 umgangatho), iimpawu ze-antistatic, and uniform coloring.
Matching Extruders: HTS PLUS series, HTE series, and HTS SUPER series. The HTS PLUS series has good flame-retardant masterbatch mixing capabilities, suitable for TPO/TPU wire and cable masterbatch; the HTE series is cost-effective, suitable for small and medium-sized production; the HTS SUPER series is suitable for high-end, high-concentration flame-retardant masterbatch processing.
3.2.2 Electrical Connectors and Plugs.
TPEs (mainly TPU, TPA) are used to produce electrical connectors, plugs, and socket housings, which require good electrical insulation, ukumelana nefuthe, and environmental friendliness. The masterbatch requires uniform coloring, high-temperature resistance, and no migration.
Matching Extruders: HTS PLUS series and HTS SUPER series. The HTS PLUS series has good compatibility with TPU/TPA, ensuring uniform dispersion; the HTS SUPER series has precise temperature control, avoiding TPA degradation during processing.
3.3 Ushishino loKwakha noThutho: Weather-Resistant TPE Masterbatch Applications
In the construction and transportation industry, TPEs are used to produce seals, expansion joints, subway mats, and other components, requiring good weather resistance, aging resistance, and low temperature flexibility to adapt to harsh outdoor environments.
3.3.1 Construction Seals and Expansion Joints.
TPEs (mainly TPV, TPO) are used to produce building door and window seals, curtain wall seals, and expansion joints, which require good weather resistance, Ukumelana ne-UV, and compression set resistance. The masterbatch requires UV stabilizers and antioxidants to improve weather resistance, and uniform coloring to match building aesthetics.
Matching Extruders: HTS PLUS series and HTE series. The HTS PLUS series has good weather-resistant additive mixing capabilities, suitable for TPV masterbatch processing; the HTE series is energy-saving and efficient, suitable for large-scale production of TPO masterbatch.
3.3.2 Transportation Components.
TPEs are used to produce subway mats, road noise reduction mats, and transportation vehicle seals, which require good shock absorption, noise reduction, and wear resistance. The masterbatch requires uniform dispersibility and good compatibility with TPE matrices to maintain shock absorption performance.
Matching Extruders: HTS BASIC series and HTE series. The HTS BASIC series is cost-effective, suitable for small-batch production; the HTE series has good mixing capabilities, ensuring uniform dispersion of shock-absorbing additives.
3.4 Consumer Goods and Other Industries: Diverse TPE Masterbatch Applications
TPEs are widely used in consumer goods and other industries, with diverse application scenarios and varying masterbatch requirements, focusing on color, soft touch, and environmental friendliness.
3.4.1 Footwear Industry.
TPEs (mainly TPU, TPS) are used to produce shoe soles, shoe uppers, and shoe accessories, which require good flexibility, ukuxhathisa kwe-abrasion, and soft touch. The masterbatch requires bright colors, uniform dispersibility, and no migration (to avoid staining socks).
Matching Extruders: HTS BASIC series and ZTE series. The ZTE series has excellent cost performance, suitable for small and medium-sized footwear manufacturers; the HTS BASIC series has good mixing dispersibility, ensuring uniform coloring of shoe sole masterbatch.
3.4.2 Household and Daily Necessities.
TPEs are used to produce handles, coasters, foot mats, izinto zokudlala, and other household items, which require non-toxic, engenavumba, soft touch, and bright colors. The masterbatch requires environmental friendliness (meeting food contact standards for coasters/handles) and uniform coloring.
Matching Extruders: ZTE series and HTS BASIC series. The ZTE series is simple to operate, low in maintenance cost, suitable for small-batch, multi-variety production; the HTS BASIC series has good environmental protection masterbatch compatibility, meeting food contact standards.
3.4.3 Izixhobo zonyango.
TPEs (mainly TPU, TPS) are used to produce medical catheters, iisirinji, and medical masks, which require non-toxic, sterile, and biocompatible. The masterbatch requires medical grade environmental protection (meeting ISO 10993 umgangatho), high transparency (for catheters), and uniform dispersibility.
Matching Extruders: HTS SUPER series and HTS PLUS series. The HTS SUPER series has clean production design, ulawulo lobushushu oluchanekileyo, avoiding material pollution; the HTS PLUS series has good compatibility with medical grade TPEs, ensuring product sterility and biocompatibility.
3.4.4 Other Industrial Applications.
TPEs are also used to produce drain pipes, industrial gaskets, and mechanical components, which require good chemical resistance, nxiba ukumelana, kunye namandla oomatshini. The masterbatch is formulated according to specific industrial requirements, and the matching extruders are selected based on TPE type and production scale.
4. Zhuoyue’s Full Series Extruders: Professional Solutions for TPE Masterbatch Processing
Zhuoyue has long been engaged in the research, development, and production of high-performance twin-screw extruders, and has accumulated rich experience in TPE masterbatch processing. Based on the unique processing characteristics of TPEs (viscosity ephezulu, temperature sensitivity, moisture absorption) and the diverse needs of manufacturers (different TPE categories, production scales, application fields), Zhuoyue has launched a full series of extruders suitable for TPE masterbatch processing, including HTS BASIC, HTS PLUS, HTS SUPER, ZTE, kunye nothotho lwe-HTE. Each series has targeted performance advantages, providing personalized and efficient processing solutions for TPE masterbatch manufacturers of different scales.
4.1 Izinto eziluncedo ezingundoqo zeZhuoyue's Extruders ze-TPE Masterbatch Processing
Ii-extruders zeZhuoyue zenzelwe ngokukodwa ukusetyenzwa kwe-TPE masterbatch, ngezi nzuzo zingundoqo zilandelayo ukuhlangabezana neemfuno ezingqongqo TPE processing:
4.1.1 Ukuxuba okugqwesileyo kunye nokusasaza isiphumo.
I-TPE masterbatch ifuna ukusasazwa okufanayo kwee-pigments kunye nezongezo ukunqanda ukuchaphazela ukuqina kwezinto kunye neempawu zoomatshini.. Zonke ii-twin-screw extruders zeZhuoyue zisebenzisa i-intermeshing co-roating structure, ngebala lokujija elifanelekileyo, ukukhokela, kunye noyilo lomlinganiselo woxinzelelo. Ukudibanisa kunye nokujikeleza kwezikrufu zamawele kuvelisa amandla aqinileyo okucheba kunye namandla okuxova, enokwaphula ngokupheleleyo i-pigment agglomerates kwaye iqinisekise ukusasazwa okufanayo kwee-pigments, carriers, kunye nezongezo kwi-matrix ye-TPE. Ukufana kokuxuba kufikelela ngaphezu 95%, which is far higher than that of ordinary extruders.
Ukwengeza, the screws adopt a modular design, which can freely combine different screw elements (ukuhambisa, ukuxuba, ukucheba) according to the TPE type. Umzekelo, high-viscosity TPV/TPC masterbatch requires more mixing and shearing elements to enhance dispersion; low-viscosity TPS masterbatch uses more conveying elements to improve production efficiency.
4.1.2 Ulawulo lobushushu obuchanekileyo, Avoiding TPE Degradation.
TPEs are sensitive to temperature, and excessive temperature or temperature fluctuation can lead to material degradation (such as TPU hydrolysis, TPC chain scission). All Zhuoyue’s extruders adopt an advanced intelligent temperature control system, nge 4-6 independent temperature control sections, temperature control precision of ±1℃, and real-time temperature monitoring and alarm functions. The barrel adopts a double-layer jacket design, realizing rapid heating and cooling, and improving temperature response speed. The die head is equipped with an independent temperature control device, ensuring stable shaping of the masterbatch strip.
4.1.3 High Wear Resistance and Corrosion Resistance.
Some TPE masterbatches (such as TPA, TPC) contain high-hardness pigments or additives, which can wear the screw and barrel. Zhuoyue’s extruders use high-quality wear-resistant materials and advanced manufacturing technologies: HTS PLUS/SUPER/HTE series screws and barrels are made of imported wear-resistant alloy steel, undergoing bimetallic composite or laser cladding treatment, surface hardness ≥65 HRC (HTS SUPER series ≥70 HRC), service life 2-3 times that of ordinary extruders; HTS BASIC/ZTE series screws and barrels are nitrided, surface hardness ≥60 HRC, meeting the needs of ordinary TPE masterbatch processing.
4.1.4 Vacuum Exhaust and Moisture Removal Capabilities.
TPEs such as TPU and TPA have high water absorption, and moisture can cause bubbles and defects in the masterbatch. All Zhuoyue’s mid-to-high-end extruders (HTS PLUS/SUPER/HTE) are equipped with a vacuum exhaust device, which can effectively remove moisture, volatile substances, and air in the material, ensuring the density and quality of the masterbatch. The vacuum degree is adjustable (0.06-0.09MPa), adapting to different moisture content requirements.
4.1.5 High Production Efficiency and Energy Saving.
Zhuoyue’s extruders adopt high-torque gearboxes and optimized screw structures, with strong conveying capacity and high production efficiency. Compared with ordinary extruders, production efficiency is increased by 20%-50%, and energy consumption is reduced by 15%-25%. Umzekelo, HTS SUPER series production capacity reaches 1000-3000kg/h, suitable for large-scale mass production; ZTE series production capacity is 50-400kg/h, suitable for small-batch production.
4.1.6 Intelligent Control and Easy Operation.
All extruders adopt a PLC intelligent control system and touch screen operation interface, which can store up to 100 sets of formula and processing parameters. When switching between different TPE masterbatches, only the corresponding parameters need to be called, avoiding repeated debugging. The HTS SUPER series is equipped with cloud control functions, realizing remote parameter adjustment, production data monitoring, kunye nokugcinwa kwangaphambili, realizing intelligent production management.
4.1.7 Wide Adaptability.
Zhuoyue’s full series of extruders can adapt to the processing of all TPE categories (TPS/SBS/TPU/TPR/TPV/TPC/TPA) and masterbatch types (umbala masterbatch, i-masterbatch enedangatye, antistatic masterbatch), with pigment content ranging from 10% ukuya 70%. They can also be matched with auxiliary equipment (high-speed mixers, ezomisi, izinto ezipholileyo, iigranulators) to form a complete automatic production line.
4.2 Detailed Introduction of Zhuoyue’s Extruder Series for TPE Masterbatch Processing
Each series of Zhuoyue’s extruders has unique performance characteristics and targeted adaptation scenarios, and manufacturers can select the appropriate series according to their TPE type, isikali semveliso, and application requirements.
4.2.1 HTS BASIC Series: Flexible and Cost-Effective for Ordinary TPE Masterbatch.
The HTS BASIC series is a cost-effective product designed for small and medium-sized manufacturers producing ordinary TPE masterbatch (TPS, low-concentration TPO/TPU masterbatch). It uses medium-torque gearboxes from leading European manufacturers, specific torque 10-12Nm/cm³, screw diameter 30-65mm, production capacity 100-500kg/h.
The series adopts nitrided screws and barrels, with good wear resistance, suitable for ordinary TPE masterbatch processing (pigment content ≤50%). It is equipped with a PLC control system, ulawulo lobushushu oluzenzekelayo, and feeding, simple to operate. The modular screw design allows flexible configuration according to TPS/TPO masterbatch requirements. The HTS BASIC series is an ideal choice for small and medium-sized manufacturers with limited budget, focusing on ordinary TPE masterbatch production (such as household goods, ordinary wires and cables).
4.2.2 HTS PLUS Series: High-Torque for Engineering TPE and High-Concentration Masterbatch.
The HTS PLUS series is positioned as a mid-to-high-end product, specially designed for high-demand TPE masterbatch processing (I-VAT, TPU, high-concentration TPE masterbatch, i-masterbatch enedangatye). It adopts high-torque gearboxes independently developed by Zhuoyue, specific torque 13-16Nm/cm³, screw diameter 40-75mm, production capacity 300-1200kg/h.
The series uses bimetallic composite screws and barrels (surface hardness ≥65 HRC), with excellent wear resistance and corrosion resistance, suitable for TPV/TPC masterbatch processing (viscosity ephezulu, high-hardness pigments). It is equipped with a 5-6 section precise temperature control system and vacuum exhaust device, avoiding TPU hydrolysis and TPC degradation. The enhanced mixing elements ensure uniform dispersion of high-concentration pigments (50%-70%) and functional additives (iiretadants zomlilo, ii-antistatic agents). The HTS PLUS series is suitable for medium-sized and large-scale manufacturers producing high-quality TPE masterbatch (such as automotive seals, high-grade wires and cables, izixhobo zonyango).
4.2.3 HTS SUPER Series: Ultra-High Performance for High-End TPE Masterbatch.
The HTS SUPER series is Zhuoyue’s highest-end extruder series, representing the advanced level of China’s twin-screw extruders, yenzelwe umgangatho ophezulu, high-demand TPE masterbatch processing (TPA, TPC, ultra-high-concentration masterbatch, masterbatch for new energy vehicles/aerospace).
It adopts Zhuoyue’s latest ultra-high torque transmission device, specific torque 17-20Nm/cm³, screw diameter 50-95mm, production capacity 1000-3000kg/h. The screws are made of new wear-resistant alloy steel, undergoing laser cladding treatment (surface hardness ≥70 HRC), service life 3-4 times that of ordinary extruders. The barrel adopts a double-layer jacket + forced cooling structure, temperature control precision ±1℃, suitable for high-temperature TPE processing (220-290℃). The multi-stage mixing screw combination ensures ultra-high mixing uniformity (≥98%), suitable for ultra-high-concentration masterbatch (70%-80%) and TPA/TPC masterbatch processing.
The series is equipped with an intelligent cloud control system, realizing remote parameter adjustment, fault early warning, kunye nokugcinwa kwangaphambili. It is suitable for large-scale, high-standard manufacturers producing high-end TPE masterbatch (such as automotive high-temperature hoses, precision electrical connectors, aerospace components).
4.2.4 ZTE Series: Cost-Effective for Universal TPE Masterbatch.
The ZTE series is positioned as a cost-effective product, designed for manufacturers balancing processing quality and cost, producing universal ordinary TPE masterbatch (low-concentration TPS/TPO/TPU masterbatch). It adopts a twin-screw parallel co-rotating structure, specific torque 8-11Nm/cm³, screw diameter 25-65mm, production capacity 50-400kg/h.
The series uses nitrided screws and barrels (surface hardness ≥60 HRC), meeting the needs of ordinary TPE masterbatch processing (pigment content ≤50%). It is equipped with a 4-section temperature control system, simple touch screen operation, easy to learn and master. The ZTE series has a simple structure, ukusetyenziswa kwamandla aphantsi, and low maintenance cost, suitable for small manufacturers, small workshops, and enterprises producing small-batch, multi-variety TPE masterbatch (such as small toys, local household goods).
4.2.5 HTE Series: High Performance and Cost-Effective Integrated Solution.
The HTE series integrates high performance and cost-effectiveness, designed for medium-sized manufacturers upgrading product quality and expanding production scale. It adopts high-torque gearboxes independently developed by Zhuoyue, specific torque 12-14Nm/cm³, screw diameter 35-70mm, production capacity 200-800kg/h.
The series uses bimetallic composite screws and barrels (surface hardness ≥65 HRC), with good wear resistance, suitable for TPU/TPO masterbatch processing. It adopts an optimized screw structure and high-efficiency energy-saving motor, energy consumption reduced by 18%-25% xa kuthelekiswa nee-extruders eziqhelekileyo. The 5-section precise temperature control system and vacuum exhaust device ensure product quality, and the enhanced mixing elements ensure uniform dispersion. The HTE series balances performance and cost, suitable for medium-sized manufacturers producing medium-grade TPE masterbatch (such as automotive interior components, ordinary medical devices, mid-grade wires and cables).
5. Common Problems and Solutions in TPE Masterbatch Twin-Screw Extrusion Processing
In TPE masterbatch processing, ngenxa yeempawu ezizodwa zeeTPEs (temperature sensitivity, moisture absorption, viscosity ephezulu), various problems often occur, affecting product quality and production efficiency. Based on years of experience, Zhuoyue summarizes common problems, analyzes their causes, and provides corresponding solutions to help manufacturers quickly solve production problems.
5.1 Problem 1: Poor Dispersibility, Color Spots and Streaks in Masterbatch
Manifestation: Uneven coloring of masterbatch, obvious pigment agglomerates, color spots and streaks in TPE products, reducing product aesthetics and mechanical properties.
Oonobangela: (1) Raw materials: Pigment particle size is too large, agglomeration is serious; poor compatibility between pigment/carrier and TPE; insufficient dispersant dosage. (2) Premixing: Low mixing speed, short mixing time, uneven premixing. (3) Extrusion parameters: Low screw speed, insufficient shear force; low extrusion temperature, incomplete melting of TPE carrier. (4) Equipment: Worn screw mixing elements; blocked die head.
Izisombululo: (1) Optimize raw materials: Select fine-particle pigments (20-40 umnatha), dry thoroughly; select carrier compatible with TPE; increase dispersant dosage (1%-5% of pigment dosage). (2) Improve premixing: Increase mixing speed to 800-1200 rpm, extend mixing time to 5-10 imizuzu. (3) Adjust extrusion parameters: Increase screw speed (500-800 rpm for high-viscosity TPEs); increase extrusion temperature to ensure complete melting of TPE. (4) Maintain equipment: Replace worn screw elements; clean die head regularly.
5.2 Problem 2: TPE Degradation and Masterbatch Discoloration
Manifestation: Masterbatch discolors (yellowing, darkening), generates peculiar smell; TPE products have reduced elasticity and mechanical strength, even brittle fracture.
Oonobangela: (1) Extrusion temperature is too high, exceeding TPE heat resistance limit. (2) Long material residence time (engaphezulu kwe 3 imizuzu) in the extruder. (3) Poor equipment cooling, local overheating of the barrel. (4) Raw materials: TPE has poor heat resistance; moisture content is too high (causing TPU hydrolysis).
Izisombululo: (1) Adjust temperature: Reduce mixing/homogenizing section temperature, control within TPE processing range; check temperature sensor accuracy. (2) Shorten residence time: Increase screw speed, reduce screw compression ratio. (3) Maintain cooling system: Clean cooling pipes, replace faulty cooling elements. (4) Optimize raw materials: Select high-temperature resistant TPE; dry raw materials thoroughly (moisture content ≤0.05% for TPU/TPA); add heat stabilizers.
5.3 Problem 3: High Wear of Screw and Barrel
Manifestation: Rapid wear of screw and barrel, reduced shear force and mixing capacity; masterbatch dispersibility decreases, equipment maintenance cost increases.
Oonobangela: (1) Raw materials: High-hardness pigments/additives (such as carbon black, titanium dioxide); large particle size. (2) Extrusion parameters: High screw speed, excessive shear force; high extrusion pressure. (3) Equipment: Screw/barrel material has poor wear resistance.
Izisombululo: (1) Optimize raw materials: Select small-particle, low-hardness pigments; crush and sieve raw materials; add lubricants to reduce friction. (2) Adjust parameters: Reduce screw speed and extrusion pressure appropriately. (3) Select high-wear-resistant equipment: Choose Zhuoyue’s HTS PLUS/SUPER/HTE series with bimetallic composite or laser-clad screws/barrels.
5.4 Problem 4: Bubbles in Masterbatch
Manifestation: Bubbles in masterbatch particles, affecting product density and mechanical properties; TPE products have pores and defects.
Oonobangela: (1) Raw materials: High moisture content (especially TPU/TPA); volatile substances in pigments/additives. (2) Extrusion parameters: Low extrusion temperature, incomplete melting; insufficient vacuum exhaust. (3) Premixing: Air mixed into the mixture during premixing.
Izisombululo: (1) Dry raw materials thoroughly: Extend drying time, increase drying temperature. (2) Adjust extrusion parameters: Increase extrusion temperature; improve vacuum exhaust (vacuum degree ≥0.08MPa). (3) Optimize premixing: Reduce mixing speed appropriately to avoid air mixing; use a closed mixer.
5.5 Problem 5: Poor Processing Fluidity, Equipment Blockage
Manifestation: Difficult material conveying and extrusion; unstable extrusion pressure; die head or extrusion cavity blockage.
Oonobangela: (1) Raw materials: High TPE viscosity (TPV/TPC); high pigment content (engaphezulu kwe 70%); high moisture content (causing agglomeration). (2) Extrusion parameters: Low temperature, incomplete melting; low screw speed, insufficient conveying capacity. (3) Equipment: Worn conveying elements; blocked die head.
Izisombululo: (1) Optimize raw materials: Reduce pigment content; select low-viscosity TPE; dry raw materials thoroughly. (2) Adjust parameters: Increase extrusion temperature; increase screw speed; replace die head with larger holes. (3) Maintain equipment: Replace worn conveying elements; clean die head and extrusion cavity regularly.
6. Practical Application Cases of Zhuoyue Extruders in TPE Masterbatch Processing
To verify the performance advantages of Zhuoyue’s extruders in TPE masterbatch processing, this section introduces several practical cases, covering different TPE categories, production scales, kunye nemimandla yesicelo, demonstrating the targeted solutions provided by Zhuoyue.
6.1 Ityala 1: HTS SUPER Series in TPC Masterbatch Processing for Automotive Hoses
Customer Background: A large automotive component manufacturer in Shanghai, eTshayina, produces high-temperature resistant TPC hoses for new energy vehicles. The customer needs to produce TPC masterbatch (pigment content 60%, high-temperature resistant) with requirements of ultra-high dispersibility (no color spots), ukumelana nobushushu (260℃), and batch stability. The original equipment had problems of insufficient torque, unstable temperature control, and poor dispersibility, which could not meet the requirements.
Solution: Zhuoyue recommended the HTS SUPER series extruders (screw diameter 75mm, specific torque 18Nm/cm³) combined with a complete automatic production line, including a high-efficiency dryer, high-speed mixer, and precision granulator, tailored to the customer’s TPC masterbatch processing needs. The core configuration and optimization measures are as follows: Ekuqaleni, the screw adopts a multi-stage mixing combination design, integrating high-shear kneading elements and dispersing elements to fully break down pigment agglomerates and ensure uniform dispersion of 60% high-concentration pigments in the TPC matrix. The laser-clad screw surface (hardness ≥70 HRC) effectively resists wear caused by high-hardness pigments, extending the service life by more than 3 times compared to the customer’s original equipment. Isibini, the barrel is equipped with a double-layer jacket + forced cooling structure, nge 6 independent temperature control sections, achieving a temperature control precision of ±1℃. The mixing section temperature is stably controlled at 240-260℃, and the homogenizing section at 230-250℃, strictly matching the TPC processing temperature range to avoid material degradation and pigment discoloration. Isithathu, the equipment is equipped with a high-efficiency vacuum exhaust device (vacuum degree adjustable up to 0.09MPa), which effectively removes moisture and volatile substances in the TPC raw materials and masterbatch, completely solving the bubble problem caused by moisture absorption. Ukwengeza, the HTS SUPER series is equipped with an intelligent cloud control system, which allows the customer to store the TPC masterbatch processing parameters, call them with one click when switching batches, and monitor production data in real time, improving batch stability and reducing operational errors.
Implementation Effect: Emva koko 1 month of installation and commissioning, the HTS SUPER series extruders officially put into production. The test results show that the TPC masterbatch produced has a mixing uniformity of ≥98%, no color spots or streaks, and the pigment dispersion effect is significantly better than the customer’s original equipment. The masterbatch maintains stable performance after high-temperature processing at 260℃, with no discoloration or degradation, fully meeting the requirements of new energy vehicle automotive hoses. The production capacity reaches 1500kg/h, which is 40% higher than the original equipment, while the energy consumption is reduced by 22%, significantly reducing the customer’s production costs. The wear of screws and barrels is greatly reduced, and the maintenance cycle is extended from 1 month to 6 iinyanga, reducing maintenance costs by more than 50%. The customer’s TPC hoses made of this masterbatch have passed the automotive industry quality certification, with excellent high-temperature resistance and mechanical strength, and have been successfully supplied to major new energy vehicle manufacturers. The customer highly recognized Zhuoyue’s extrusion solution, and subsequently signed a long-term cooperation agreement, purchasing 5 more sets of HTS SUPER series extruders to expand production scale.
6.1 Ityala 1: HTS SUPER Series in TPC Masterbatch Processing for Automotive Hoses
Customer Background:
A large automotive component manufacturer in Shanghai, eTshayina, produces high-temperature resistant TPC hoses for new energy vehicles. The customer needs to produce TPC masterbatch (pigment content 60%, high-temperature resistant) with requirements of ultra-high dispersibility (no color spots), ukumelana nobushushu (260℃), and batch stability. The original equipment had problems of insufficient torque, unstable temperature control, and poor dispersibility, which could not meet the requirements.
Solution:
Zhuoyue recommended the HTS SUPER series extruders (screw diameter 75mm, specific torque 18Nm/cm³) combined with a complete automatic production line, including a high-efficiency dryer, high-speed mixer, and precision granulator, tailored to the customer’s TPC masterbatch processing needs. The core configuration and optimization measures are as follows: Ekuqaleni, the screw adopts a multi-stage mixing combination design, integrating high-shear kneading elements and dispersing elements to fully break down pigment agglomerates and ensure uniform dispersion of 60% high-concentration pigments in the TPC matrix. The laser-clad screw surface (hardness ≥70 HRC) effectively resists wear caused by high-hardness pigments, extending the service life by more than 3 times compared to the customer’s original equipment. Isibini, the barrel is equipped with a double-layer jacket + forced cooling structure, nge 6 independent temperature control sections, achieving a temperature control precision of ±1℃. The mixing section temperature is stably controlled at 240-260℃, and the homogenizing section at 230-250℃, strictly matching the TPC processing temperature range to avoid material degradation and pigment discoloration. Isithathu, the equipment is equipped with a high-efficiency vacuum exhaust device (vacuum degree adjustable up to 0.09MPa), which effectively removes moisture and volatile substances in the TPC raw materials and masterbatch, completely solving the bubble problem caused by moisture absorption. Ukwengeza, the HTS SUPER series is equipped with an intelligent cloud control system, which allows the customer to store the TPC masterbatch processing parameters, call them with one click when switching batches, and monitor production data in real time, improving batch stability and reducing operational errors.
Implementation Effect:
Emva koko 1 month of installation and commissioning, the HTS SUPER series extruders officially put into production. The test results show that the TPC masterbatch produced has a mixing uniformity of ≥98%, no color spots or streaks, and the pigment dispersion effect is significantly better than the customer’s original equipment. The masterbatch maintains stable performance after high-temperature processing at 260℃, with no discoloration or degradation, fully meeting the requirements of new energy vehicle automotive hoses. The production capacity reaches 1500kg/h, which is 40% higher than the original equipment, while the energy consumption is reduced by 22%, significantly reducing the customer’s production costs. The wear of screws and barrels is greatly reduced, and the maintenance cycle is extended from 1 month to 6 iinyanga, reducing maintenance costs by more than 50%. The customer’s TPC hoses made of this masterbatch have passed the automotive industry quality certification, with excellent high-temperature resistance and mechanical strength, and have been successfully supplied to major new energy vehicle manufacturers. The customer highly recognized Zhuoyue’s extrusion solution, and subsequently signed a long-term cooperation agreement, purchasing 5 more sets of HTS SUPER series extruders to expand production scale.