Yini impahla yezilwane zasekhaya? - Ukuhlaziywa kwe-Polyethylene terephthalate (pet)
Isingeniso: Imiqondo eyisisekelo yesilwane sasekhaya
Yini isilwane? Lo ngumbuzo abantu abaningi abavame ukuhlangana nabo ezimpilweni zabo zansuku zonke. I-PET, eyaziwa ngokuthi i-polyethylene terephthalate, i-thermoplastic polyester impahla esetshenziswa kabanzi kwizimboni ezifakiwe kanye nezimboni zezindwangu. Ngezakhiwo zayo ezinhle kakhulu zenyama nangamakhemikhali, sekusenye yezinto ezisemqoka ekukhiqizweni kwanamuhla.
Ukwakheka kwamakhemikhali nezakhiwo zesilwane esifuywayo
I-PET is a polymer eliqondile, ekhiqizwa ikakhulukazi yi-polycondenswation ye-terephthalic acid (TPA) ne-ethylene glycol (isib.) Ngaphansi kwezimo ezithile. Izinto ezibonakalayo zineklkristality enhle namandla emishini futhi zisobala kakhulu.Pet zinendawo ebiyelwe cishe ngo-250 ° C futhi imelana nokushisa, ukugcina izakhiwo zayo zemishini emazingeni aphezulu. Iphinde ibe nokumelana kahle kwamakhemikhali kanye nokumelana kwe-UV, ukuvumela ukuba kuhlale zizinzile ezindaweni ezahlukahlukene ezinokhahlo.
Izindawo eziphambili zesilwane
Lapho sesikwazi ukuthi yisiphi isilwane, ake sibheke izindawo zaso zohlelo lokusebenza.pet zisetshenziswa kabanzi ezindaweni zokupakisha, ikakhulukazi embonini yebhodlela lesiphuzo. Ngenxa yokubonakala kwayo okuhle kakhulu kanye nezithiyo zokuvilapha, amabhodlela wezilwane ahlala ekwabiweni kwemakethe enkulu ekudleni nasekubhukeni kwesiphuzo. Ngokungeziwe emkhakheni wokufaka, isilwane futhi sisetshenziswa embonini yezindwangu, ikakhulukazi ukukhiqizwa kwe-polyester Fibers, esetshenziswa kabanzi kwezingubo, izindwangu zasekhaya, njll. Isilwane sezinto zisetshenziswe ngenqubo yokuvuselelwa kabusha, okwenza kube yinto enobungani bezemvelo.
Ukuhlaziywa kwezinzuzo nobubi bezinto ezibonakalayo zezilwane ezifuywayo
Izinzuzo zesilwane ezibandakanya amandla aphezulu, ukuqina, isisindo esikhanyayo kanye nokubuyiselwa kabusha. Izakhiwo zayo ezinhle kakhulu zivumela ukudla neziphuzo ngaphakathi kwephakeji ukuze zihlale zintsha. Ngaphezu kwalokho, izinto ezifuywayo ziyi-100% kabusha, okubalulekile ekuvikelweni kwemvelo kanye nokulondolozwa kwezinsizakusebenza.Iphepheni okufana nokukhiqizwa kwamanani aphansi kwe-ethylene glycol, yize lezi zinto zinomthelela omncane empilweni yabantu, zisadinga ukunakekelwa ngesikhathi sokusebenzisa.
Ngokufingqa: Ikusasa lesilwane esifuywayo
Umbuzo wokuthi hlobo luni lwesilwane sezilwane esiphendulwa khona ngokuphelele. Izinto zokwenziwa kwezilwane ezifuywayo ziye zaba yingxenye ebaluleke kakhulu embonini yanamuhla ngenxa yezakhiwo zazo ezinhle kakhulu ze-physicochemical kanye nohlu olubanzi lwamathemba wohlelo lokusebenza. Ngokuthuthuzelwa kokuqwashisa ngezemvelo kanye nokuthuthukiswa kobuchwepheshe bokuphinda usebenzise kabusha, uhla lwesifo sesilwane kulindeleke ukuthi lunwetshwe, kanti inqubo yalo yokukhiqiza kanye nezindlela zohlelo lokusebenza zizoqhubeka zibe ezintsha. Esikhathini esizayo, isilwane sizoqhubeka nokudlala indima ebalulekile ekuphakeleni, izindwangu kanye nezinye izimboni, ukukhuthaza ukuthuthukiswa okuqhubekayo kwalezimboni.