Kusukela kwaqala ipulasitiki, kusetshenziswe kabanzi kuzo zonke izici zempilo yabantu, ukuletha kube lula ukukhiqizwa kwabantu nasempilweni. Kodwa-ke, kuyilapho kufaneleka, ukusetshenziswa kwayo kanye nokungcola nakho kuholela ekungcoleni okuthe xaxa kwezemvelo, kufaka phakathi ukungcoliswa okumhlophe okufana nemifula, epulazini kanye nolwandle.
I-Polyethylene (PE) iyipulasitiki yendabuko esetshenziswa kabanzi kanye nenye indlela enkulu yezinto zokwakha ezingenakubonwa.
I-crystaltaltity enhle, indawo yokuvila kwamanzi amanzi kanye nokumelana nesimo sezulu, futhi lezi zakhiwo zingabizwa ngokuthi yizimpawu ezihlangene njenge- "PE izici".
Esezinhlelweni zokufuna ukuxazulula "ukungcoliswa kwepulasitiki" kusuka ezimpandeni, ngaphezu kokuthola ezinye izinto ezingejwayelekile zemvelo, indlela ebaluleke kakhulu yokonakalisa indawo eningi nezindleko zezinto ezibonakalayo, kepha futhi ixazulula inkinga enkulu yokungcoliswa kwemvelo ngesikhathi esifushane
Izakhiwo zezinto ezisetshenziswayo ze-biodegradable zihlangabezana nezidingo zokusebenzisa ngesikhathi sesitoreji, nangemva kokusetshenziswa, zingadilizwa ngezinto ezingenangozi emvelweni ngaphansi kwezimo zemvelo.
Izinto ezihlukile ze-biodegradable zinezici ezihlukile futhi zinezinzuzo zazo nokubi. Phakathi kwazo, i-PLA ne-PBAT banesilinganiso esiphakeme kakhulu sezimboni, futhi amandla abo okukhiqiza athatha isikhundla esibalulekile emakethe. Ngaphansi kokukhuthaza umyalo wokuvinjelwa kopulasitiki, imboni yezinto ezibonakalayo ye-biodegramable iyashisa kakhulu, futhi izinkampani ezinkulu zepulasitiki zikhulise umkhiqizo wazo. Njengamanje, umthamo wonyaka wokukhiqiza wonyaka we-PLA ungaphezu kwamathani angama-400,000, futhi kulindeleke ukuthi adlule amathani ayizigidi ezintathu eminyakeni emithathu ezayo. Ngokwezinga elithile, lokhu kukhombisa ukuthi izinto ze-PLA ne-Pbat izinto izinto ze-biodegradable ezinokuqashelwa okuphezulu emakethe.
I-PBS ezintweni ezisetshenziswayo ze-bioderhradable nayo iyinto enesilinganiso esiphakeme sokuqashelwa, ukusetshenziswa okwengeziwe, nobuchwepheshe obuvuthiwe ngokwengeziwe.
Umthamo okhona wokukhiqiza kanye nokwanda okulindelekile kwamandla okukhiqiza ezikhathi ezingokoqobo ezifana ne-PHA, i-PPC, i-PGA, i-PCL, futhi zizobe zincane, futhi zisetshenziswa kakhulu ezinkambeni zezimboni. Isizathu esiyinhloko ukuthi lezi zinto ze-biodegradable zisekuqaleni, ubuchwepheshe bungavuthiwe futhi izindleko ziphezulu kakhulu, ngakho-ke izinga lokuqashelwa aliphezulu, futhi okwamanje alikwazi ukuncintisana ne-PLA ne-PBAT.
Izinto ezihlukile ze-biodegradable zinezici ezihlukile futhi zinezinzuzo zazo nokubi. Yize benganazo ngokugcwele izici "ze-PE", eqinisweni, izinto ezivamile ze-biodegradable ziyi-aliphatic polylesters, njenge-pla ne-pbs, equkethe ama-ester. I-Bonded PE, isibopho se-Ester esiseqoqweni laso samangqamuzana siwunikeza i-biodergrability, futhi i-aliphatic chain ikunikeza "izici ze-PE".
Iphoyinti lokuncibilika kanye nezakhiwo zemishini, ukumelana nokushisa, izinga lokuwohloka, nezindleko zePbat ne-PB zingase zimboze ukusetshenziswa kwe-PE embonini yomkhiqizo olahliwe.
Izinga lokuthuthukiswa kwezimboni zePla nePbat liphezulu kakhulu, futhi futhi liyindlela yokuthuthuka ngamandla ezweni lami. I-PLA ne-PBAT banezici ezihlukile. I-PLA yipulasitiki elukhuni, futhi i-pbat iyipulasitiki ethambile. I-PLA enokuhleleka kwefilimu okumhlophe kuhlanganiswa kakhulu nge-Pbat ngokuqina okuhle, okungathuthukisa ukucubungula ifilimu elishaywayo ngaphandle kokulimaza izakhiwo zalo zebhayoloji. ukonakala. Ngakho-ke, akukhona ukweqisa ukusho ukuthi i-PLA ne-PBAT sekube yimishini yezinto ezingokonakalayo.
Isikhathi sePosi: Feb-26-2022