Iyini impahla ye-PET? --Ukuhlaziywa Okuphelele kwe-Polyethylene Terephthalate (PET)
Isingeniso: Imiqondo Eyisisekelo ye-PET
Iyini i-PET? Lona umbuzo abantu abaningi abavame ukuhlangana nawo ekuphileni kwabo kwansuku zonke. I-PET, eyaziwa ngokuthi i-Polyethylene Terephthalate, iyimpahla ye-thermoplastic polyester esetshenziswa kakhulu ezimbonini zokupakisha nezindwangu. Ngezakhiwo zayo ezinhle kakhulu zomzimba namakhemikhali, isibe enye yezinto ezibalulekile ekukhiqizeni kwanamuhla.
Isakhiwo samakhemikhali kanye nezakhiwo ze-PET
I-PET iyi-polymer eqondile, ekhiqizwa ikakhulukazi i-polycondensation ye-terephthalic acid (TPA) ne-ethylene glycol (EG) ngaphansi kwezimo ezithile. Impahla inobucwebe obuhle namandla emishini futhi isobala kakhulu.I-PET inendawo yokuncibilika ecishe ibe ngu-250°C futhi ikwazi ukumelana nokushisa, igcina izici zayo zemishini emazingeni okushisa aphakeme. Futhi inokumelana okuhle kakhulu kwamakhemikhali kanye nokumelana ne-UV, okuyivumela ukuthi ihlale izinzile ezindaweni ezihlukahlukene ezinokhahlo.
Izindawo eziyinhloko zohlelo lokusebenza lwe-PET
Uma sesazi ukuthi i-PET iyini, ake sibheke izindawo zayo zokusebenza.I-PET isetshenziswa kakhulu ezintweni zokupakisha, ikakhulukazi embonini yamabhodlela esiphuzo. Ngenxa yokubonakala kwayo okuhle kakhulu kanye nezindawo zokuthiya, amabhodlela e-PET athatha ingxenye enkulu yemakethe emaphaketheni okudla neziphuzo. Ngaphandle komkhakha wokupakisha, i-PET iphinde isetshenziswe embonini yendwangu, ikakhulukazi ukukhiqizwa kwezintambo ze-polyester, ezisetshenziswa kakhulu ezingutsheni, izindwangu zasekhaya, njll.
Ukuhlaziywa kwezinzuzo kanye nokubi zezinto ze-PET
Izinzuzo ze-PET zihlanganisa amandla aphezulu, ukuqina, isisindo esilula kanye nokusetshenziswa kabusha. Izakhiwo zayo ezinhle kakhulu zokuvimbela zivumela ukudla neziphuzo ngaphakathi kwephakeji ukuthi kuhlale kusha. Ngaphezu kwalokho, izinto ze-PET zikwazi ukuphinda zisetshenziswe ngo-100%, okubalulekile ekuvikelweni kwemvelo nokugcinwa kwezinsiza.I-PET iphinde ibe nokushiyeka okuthile, njengamandla ayo okukhiqiza amanani omkhondo we-ethylene glycol noma i-terephthalic acid monomer ukukhululwa ngaphansi kwezimo ezithile, nakuba lezi zinto zinomthelela omncane empilweni yomuntu, zisadinga ukunakekelwa ngesikhathi sokusetshenziswa.
Kafushane: ikusasa le-PET
Umbuzo wokuthi hlobo luni lwempahla ye-PET uphendulwe ngokuphelele. Izinto ze-PET seziyingxenye ebalulekile yemboni yesimanje ngenxa yezakhiwo zazo ezinhle kakhulu ze-physicochemical kanye nohlu olubanzi lwamathemba okusebenza. Ngokuthuthukiswa kokuqwashisa ngemvelo kanye nokuthuthukiswa kobuchwepheshe bokugaywa kabusha, uhla lokusetshenziswa kwe-PET kulindeleke ukuthi lunwetshwe ngokwengeziwe, kuyilapho inqubo yayo yokukhiqiza nezindlela zokufaka izicelo zizoqhubeka nokusungulwa. Ngokuzayo, i-PET izoqhubeka nokubamba iqhaza elibalulekile ekufakweni, izindwangu kanye nezinye izimboni, ukukhuthaza intuthuko esimeme yalezi zimboni.