Yini isilwane? Ukuhlaziywa -Compenusun kwe-polyethylene terephthalate
UPet, noma i-Polyethylene Terephthalate, iyinto esetshenziswa nge-polymer esetshenziswa kabanzi embonini yamakhemikhali. Kulesi sihloko, sizohlinzeka ngokuhlaziywa okujulile kwencazelo yesilwane, izindawo zohlelo lokusebenza, inqubo yokukhiqiza kanye nezinzuzo zayo, ukuze zinikeze abafundi ngokuqonda okuphelele kwesilwane njengento ebalulekile.
Izincazelo nezinto eziyisisekelo zesilwane
Yini isilwane? I-Memical, Pet i-Thermoplastic polymer eyakhiwe yi-polymerication ye-terephthalic acid kanye ne-ethylene glycol.Isakhiwo samakhemikhali sesilwane esifuywayo silinikeza izakhiwo ezinhle kakhulu ezinjengamandla aphezulu, ukumelana nokushisa. Lezi zakhiwo zenza isilwane sezinto ezikhethwayo ezimweni eziningi zezicelo, ikakhulukazi emkhakheni wokufaka.
Izindawo eziphambili zesicelo sezilwane ezifuywayo
I-PET isetshenziswa ezinhlobonhlobo zezicelo, ukugxila ezindaweni ezimbili eziphambili: izinto zokupakisha kanye nokukhiqiza kwe-fiber. Embonini yokufaka, isilwane sivame ukusetshenziswa ekwenziweni kwemikhiqizo efana namabhodlela epulasitiki, iziqukathi zokudla namafilimu, lapho ukuvela kwayo kanye nokudla kwayo kanye nokukhiqizwa kwayo kwe-poltesile fibers. Izingubo ezenziwe nge-polyester Fibers zigqoke kanzima, kulula ukugeza futhi zisheshe zome, zokwenza ilungele ukugqokwa kwansuku zonke.
Inqubo yokukhiqiza izilwane zasekhaya
Ukuqonda ukuthi isilwane sini futhi sidinga ukubheka okujulile kwinqubo yaso yokukhiqiza, eyenziwa ngezindlela ezimbili eziphambili: Isinyathelo esisodwa (ukucaciswa okuqondile) kanye nezinyathelo ezimbili (Earch Exchange). Enqubweni yesinyathelo esisodwa, i-Teerephthalic acid iphendulwa ngokuqondile ne-ethylene glycol emazingeni okushisa aphezulu nasekucindezelweni kwezilwane ezimbili, bese kuthi i-polyconden yenziwa ukukhiqiza izinyathelo ezisetshenzisiwe, njengokukhishwa, noma ukujova-ukubumba, ukuze kulungiselele umkhiqizo obunjiwe.
Izinzuzo kanye nokusimama kwesilwane
Yini isilwane? Kusuka ekubukweni kokuqina, izinzuzo zezilwane zasekhaya amanga ekuvuseleleni kahle; Imikhiqizo yezilwane ezifuywayo ingavuselelwa nge-pyrolysis, ukuvumelanisa kabusha kwamakhemikhali nezinye izindlela ukunciphisa ukungcoliswa kwemvelo, kanye namandla aphezulu wesilwane kanye nezindawo ezingasindi futhi zinikeze ithuba lokunciphisa ukusetshenziswa kwezinto ezibonakalayo kanye nezindleko zokuhamba. Lezi zici zenza isilwane esinye sezinto eziluhlaza ezisemqoka embonini yanamuhla.
Ukugcina
Ukufingqa, yini isilwane? Kuyinto esebenza kahle ye-polymer enezicelo eziningi ezahlukahlukene.Khetha indima ebalulekile embonini yanamuhla ngenxa yezakhiwo zayo ezinhle kakhulu ze-physicochemical, ububanzi bezicelo zokusebenzisa kabusha. Noma ngabe kungokwezinto zokupakisha empilweni yansuku zonke noma ekwenziweni kwe-fiber embonini yezindwangu, ithonya lesilwane likuyo yonke indawo. Ngakho-ke, ukuqonda okujulile kokuphindwe kabili kubalulekile ekuqondeni ukuthambekela kwezinto zesimanje zamakhemikhali.