(1) I-CPE
I-polyethylene ene-chlorine (CPE) iwumkhiqizo ophuphu we-chlorination elengayo ye-HDPE esigabeni samanzi. Ngokukhuphuka kwezinga le-chlorination, i-HDPE eyayiyikristalu ekuqaleni iba kancane kancane i-elastomer engenasimo. I-CPE esetshenziswa njenge-ejenti yokuqinisa ngokuvamile inokuqukethwe kwe-chlorine okungu-25-45%. I-CPE inemithombo eminingi kanye namanani aphansi. Ngaphezu komphumela wayo wokuqinisa, iphinde ibe nokumelana nokubanda, ukumelana nesimo sezulu, ukumelana nomlilo, kanye nokumelana namakhemikhali. Njengamanje, i-CPE iyisiguquli somthelela esivelele eShayina, ikakhulukazi ekukhiqizweni kwamapayipi e-PVC namaphrofayili, futhi iningi lamafektri lisebenzisa i-CPE. Inani lokwengeza ngokuvamile liyizingxenye ezingu-5-15. I-CPE ingasetshenziswa kanye nezinye izinto zokuqinisa, njengerabha kanye ne-EVA, ukuze kufezwe imiphumela engcono, kodwa izithasiselo zerabha azimelani nokuguga.
(2) I-ACR
I-ACR iyi-copolymer yama-monomers afana ne-methyl methacrylate kanye ne-acrylic ester. Iyi-impact modifier engcono kakhulu eyathuthukiswa eminyakeni yamuva futhi ingandisa amandla omthelela wezinto ngezikhathi eziningana. I-ACR ingeye-impact modifier yesakhiwo se-core-shell, equkethe igobolondo elakhiwe yi-methyl methacrylate ethyl acrylate polymer, kanye ne-elastomer yerabha eyakhiwe ngokuxhumanisa ne-butyl acrylate njengengxenye ye-core chain esatshalaliswa engqimbeni yangaphakathi yezinhlayiya. Ifaneleka kakhulu ekuguqulweni komthelela wemikhiqizo yepulasitiki ye-PVC yokusetshenziswa ngaphandle, ukusebenzisa i-ACR njenge-impact modifier kumaphrofayili epulasitiki e-PVC emnyango namafasitela kunezici zokusebenza okuhle kokucubungula, ubuso obubushelelezi, ukumelana nokuguga okuhle, kanye namandla aphezulu ekhoneni lokushisela uma kuqhathaniswa nezinye izi-modifier, kodwa intengo iphakeme cishe ngengxenye yesithathu kune-CPE.
(3) i-MBS
I-MBS iyi-copolymer enama-monomer amathathu: i-methyl methacrylate, i-butadiene, kanye ne-styrene. Ipharamitha yokuncibilika kwe-MBS iphakathi kuka-94 no-9.5, okuseduze nepharamitha yokuncibilika kwe-PVC. Ngakho-ke, ihambisana kahle ne-PVC. Isici sayo esikhulu ukuthi ngemva kokwengeza i-PVC, ingenziwa umkhiqizo ocacile. Ngokuvamile, ukwengeza izingxenye eziyi-10-17 ku-PVC kungandisa amandla ayo okucindezela ngezikhathi eziyi-6-15. Kodwa-ke, lapho inani le-MBS elingeziwe lidlula izingxenye ezingama-30, amandla okucindezela e-PVC ayancipha ngempela. I-MBS ngokwayo inokusebenza okuhle kokuthinta, ukubonakala okuhle, kanye nokudluliselwa okungaphezu kuka-90%. Ngenkathi ithuthukisa ukusebenza kokuthinta, ayinawo umthelela omkhulu kwezinye izakhiwo ze-resin, njengamandla okudonsa kanye nokunwebeka ngesikhathi sokuphumula. I-MBS iyabiza futhi ivame ukusetshenziswa kanye nezinye iziguquli zokuthinta ezifana ne-EAV, i-CPE, i-SBS, njll. I-MBS inokumelana nokushisa okubi kanye nokumelana nesimo sezulu, okwenza ingafanele ukusetshenziswa ngaphandle isikhathi eside. Ngokuvamile ayisetshenziswa njengesishintshi somthelela ekukhiqizweni kwamaphrofayili epulasitiki omnyango namafasitela.
(4) i-SBS
I-SBS iyi-copolymer ye-ternary block ye-styrene, i-butadiene, kanye ne-styrene, eyaziwa nangokuthi irabha ye-thermoplastic styrene butadiene. Ingeyama-elastomer e-thermoplastic futhi isakhiwo sayo singahlukaniswa ngezinhlobo ezimbili: esimise okwenkanyezi kanye nesiqondile. Isilinganiso se-styrene ne-butadiene ku-SBS ngokuyinhloko singu-30/70, 40/60, 28/72, kanye no-48/52. Isetshenziswa kakhulu njengesishintshi somthelela we-HDPE, PP, kanye ne-PS, enesilinganiso sezingxenye ezingu-5-15. Umsebenzi oyinhloko we-SBS ukuthuthukisa ukumelana kwayo nomthelela ophansi. I-SBS inokumelana nesimo sezulu okubi futhi ayifanele imikhiqizo yokusetshenziswa ngaphandle isikhathi eside.
(5) I-ABS
I-ABS iyi-copolymer ye-ternary ye-styrene (40% -50%), i-butadiene (25% -30%), kanye ne-acrylonitrile (25% -30%), esetshenziswa kakhulu njengepulasitiki yobunjiniyela futhi isetshenziselwa nokuguqulwa komthelela we-PVC, enemiphumela emihle yokuguqulwa komthelela ophansi ekushiseni. Lapho inani le-ABS elingeziwe lifinyelela ezingxenyeni ezingu-50, amandla omthelela we-PVC angalingana ne-ABS emsulwa. Inani le-ABS elingeziwe ngokuvamile liyizingxenye ezingu-5-20. I-ABS inokumelana nesimo sezulu okubi futhi ayifanele ukusetshenziswa isikhathi eside ngaphandle emikhiqizweni. Ngokuvamile ayisetshenziswa njengokushintsha komthelela ekukhiqizweni kwamaphrofayili eminyango namafasitela epulasitiki.
(6) I-EVA
I-EVA iyi-copolymer ye-ethylene ne-vinyl acetate, futhi ukufakwa kwe-vinyl acetate kushintsha ukwakheka kwekristalu kwe-polyethylene. Okuqukethwe kwe-vinyl acetate kuhluke kakhulu, futhi inkomba yokugqama kwe-EVA ne-PVC ihlukile, okwenza kube nzima ukuthola imikhiqizo esobala. Ngakho-ke, i-EVA ivame ukusetshenziswa ngokuhlanganiswa nezinye izinhlayiya ezimelana nokushayisana. Inani le-EVA elingeziwe lingaphansi kwezingxenye eziyi-10.
Isikhathi sokuthunyelwe: Mashi-15-2024
