Lintho tsa PET ke eng? -- Analysis e Felletseng ea Polyethylene Terephthalate (PET)
Selelekela: Mehopolo ea Motheo ea PET
PET ke eng? Ena ke potso eo batho ba bangata ba atisang ho kopana le eona bophelong ba bona ba letsatsi le letsatsi. PET, e tsejoang ka hore ke Polyethylene Terephthalate, ke thepa ea thermoplastic polyester e sebelisoang haholo indastering ea ho paka le ea masela. Ka thepa ea eona e ntle ea 'mele le ea lik'hemik'hale, e fetohile e' ngoe ea lisebelisoa tsa bohlokoahali tlhahisong ea sejoale-joale.
Sebopeho sa lik'hemik'hale le thepa ea PET
PET ke linear polymer, haholo-holo e hlahisoang ke polycondensation ea terephthalic acid (TPA) le ethylene glycol (EG) tlas'a maemo a itseng. Thepa e na le crystallinity e ntle le matla a mochine 'me e pepenene haholo.PET e na le sebaka se qhibilihisang hoo e ka bang 250 ° C 'me e thibela mocheso, e boloka thepa ea eona ea mechine mocheso o phahameng. E boetse e na le khanyetso e ntle ea lik'hemik'hale le khanyetso ea UV, e e lumellang hore e lule e tsitsitse libakeng tse fapaneng tse thata.
Libaka tse ka sehloohong tsa ts'ebeliso ea PET
Ha re se re tseba hore na PET ke eng, a re shebeng libaka tsa eona tsa ts'ebeliso.PET e sebelisoa haholo ka thepa ea ho paka, haholo-holo indastering ea botlolo ea seno. Ka lebaka la ponahalo ea eona e ntle ea ponaletso le lithibelo, libotlolo tsa PET li nka karolo e kholo ea 'maraka ka har'a liphutheloana tsa lijo le lino. Ntle le lefapha la liphutheloana, PET e boetse e sebelisoa indastering ea masela, haholo-holo bakeng sa tlhahiso ea likhoele tsa polyester, tse sebelisoang haholo liaparong, masela a lapeng, joalo-joalo PET e ka boela ea tsosolosoa ka mokhoa oa ho tsosolosoa, e leng se etsang hore e be thepa ea tikoloho.
Tlhahlobo ea melemo le likotsi tsa thepa ea PET
Melemo ea PET e kenyelletsa matla a phahameng, ho tšoarella, boima bo bobebe le ho sebelisoa hape. Lintho tsa eona tse ntle tsa thibelo li lumella lijo le lino tse ka har'a sephutheloana hore li lule li le ncha. Ho feta moo, lisebelisoa tsa PET li ka sebelisoa hape ka 100%, e leng tsa bohlokoa bakeng sa ts'ireletso ea tikoloho le paballo ea lisebelisoa.PET e boetse e na le mefokolo e itseng, e kang bokhoni ba eona ba ho hlahisa palo ea ethylene glycol kapa terephthalic acid monomer e lokolloa tlas'a maemo a itseng, le hoja lintho tsena li na le tšusumetso e fokolang bophelong ba batho, li ntse li hloka ho hlokomeloa nakong ea tšebeliso.
Ka kakaretso: bokamoso ba PET
Potso ea hore na PET ke thepa ea mofuta ofe e arabetsoe ka botlalo. Lisebelisoa tsa PET li fetohile karolo ea bohlokoa indastering ea sejoale-joale ka lebaka la thepa ea tsona e ntle ea physicochemical le menyetla e mengata ea ts'ebeliso. Ka ntlafatso ea tlhokomeliso ea tikoloho le nts'etsopele ea theknoloji ea ho tsosolosa, mefuta e mengata ea ts'ebeliso ea PET e lebelletsoe ho atolosoa le ho feta, ha ts'ebetso ea eona ea tlhahiso le mekhoa ea ts'ebeliso e ntse e tsoela pele ho ntlafatsa. Nakong e tlang, PET e tla tsoelapele ho bapala karolo ea bohlokoa ho liindasteri tsa ho paka, tsa masela le tse ling, ho khothaletsa nts'etsopele ea moshoelella ea liindasteri tsena.