Ngenkathi ingilazi bekuyizinto eziyinhloko zamabhodlela ekhulwini elidlule, kusukela ngasekupheleni kwawo-1980, i-PET ibilokhu ithandwa kakhulu ngabakhiqizi nabathengi.Lawa mabhodlela "e-polyester" anenzuzo eyingqayizivele yokuba angasindi futhi angenakunqamuka.Nokho, impumelelo iza nezinselelo ezintsha ezihlobene nokugaywa kabusha kwaminyaka yonke kwezigidigidi zamabhodlela alahliwe.
Ukuguqula amabhodlela asetshenzisiwe abe izinto ezingavuthiwe ezisebenzisekayo kudinga iketango lenqubo elide neliyinkimbinkimbi.Konke kuqala ngokuqoqa amabhodlela bese uwacindezela emabhaleni.Ngemuva kwalokho, ama-bales avulwa, ahlungwe futhi achotshozwe.Ama-flakes avelayo ayagezwa (abanda futhi ashisayo) futhi ahlukaniswe ne-polyolefin esivalweni kanye ne-liner.Ngemuva kokumisa nokuhlukanisa insimbi, ama-flakes angapakishwa kuma-silos noma izikhwama ezinkulu.Umjikelezo omusha uyaqala.
Enye yezinqubo eziyinhloko zokutholai-polyester eyenziwe kabusha iwukuphotha kwemicu emifushane,engasetshenziswa, isibonelo, ekuphotheni, izigcwalisi zendwangu noma ama-nonwovens.Lezi zinhlelo zokusebenza zisungulwe kahle, ngamahembe eboya namashalu ayizibonelo eziyinhloko.
Ngaphezu kwalokho, ukuqoqwa nokugaywa kabusha kwamabhodlela epulasitiki kuyanda emhlabeni wonke ngenxa yezinto eziningi.Ngakho-ke yisikhathi sokuhlola izinketho ezintsha zokusetshenziswa kwe-PET egaywe kabusha.
Imicu ye-PET inikeza izinzuzo eziningi lapho isetshenziswa kumakhaphethi, okuhlanganisa ukumelana okuphezulu kwamabala, okungcono nakakhulu kune-PA BCF ephathwa ngamakhemikhali.Ngaphezu kwalokho, i-PET ingabunjwa ingadayiwe, kuyilapho i-PP ingakwazi.Intambo engadayiwe ingasonteka, isethwe ukushisa, idayiwe futhi ithungwe, noma ukhaphethi ophelile ungaphrintwa.
Iukukhiqizwa kwemicu eqhubekayokusuka ku-R-PET nakho kuyinselele kakhulu kunokukhiqizwa kwemicu emifushane.Kuukuphotha i-filament, ikhwalithi yentambo inqunywa ukufana kwempahla eluhlaza.Ama-flakes atholiwe ayisici esiqeda amandla futhi ukuchezuka okuncane kwekhwalithi kungaholela ekwenyukeni kwezintambo eziphukile noma izintambo eziphukile.Futhi, umehluko wekhwalithi ye-flake ungathinta ukumuncwa kombala wezintambo, okuholela emisebeni kukhaphethi ophelile.
Ama-flakes e-P-PET ageziwe ayomiswa futhi ahlanzwe ku-reactor, ancibilike ku-extruder bese edlula endaweni enkulu yokuhlunga okuhlukahlukene.Ukuncibilika kwekhwalithi ephezulu bese kudluliselwa ohlelweni lokuphotha.Amaphekhi okuphotha ekhwalithi ephezulu, ama-double-hull pull rolls, amasistimu wokuthumela umbhalo we-HPc, kanye nama-winda adonsa ngamasondo amane enza imicu futhi azisongelele kuma-spools.Ngokusho komkhiqizi, umugqa wokukhiqiza wezimboni usuvele usebenza ngempumelelo ePoland.
Isikhathi sokuthumela: Sep-13-2022