Yini ifilimu ye-pla?
I-PLA FIED FIELM iyifilimu enobungane nemvelo yemvelo eyenziwe nge-polylactic acid resin.organic imithombo efana nesitashi sommbila noma umoba. Kusetshenziswa izinsiza ze-biomass kwenza ukukhiqizwa kwe-PLA kuhluke kakhulu kumapulasitiki amaningi, akhiqizwa kusetshenziswa ama-fossil feel ngokusebenzisa i-distillation kanye ne-polymerization kaphethiloli.
Ngaphandle kokungafani okubonakalayo okungavuthiwe, i-PLA ingakhiqizwa kusetshenziswa imishini efanayo namaplastiki we-petrochemical, okwenza izinqubo zokukhiqiza ze-PLA zibiza kahle. I-PLA iyi-bioplastic ekhiqizwe yesibili (ngemuva kwesitashi se-thermoplastic) futhi inezimpawu ezifanayo ku-polypropylene (PP), i-polyethylene (pe), noma i-PS), kanye nokuba yi-biodeGreade.
Ifilimu linokucaciswa okuhle,Amandla amahle,Futhi ukuqina okuhle nokuqina.Ifilimu ye-PLA ye-PLA kufakazelwa ukuhlanganiswa ngokusho kwesitifiketi se-EN 134432
Ifilimu le-PLA lifakazela ukuthi lingelinye lefilimu ephakeme ephakeme embonini yokufaka eguquguqukayo, futhi manje isetshenziswe kumaphakeji wezimbali, isipho, ukudla njengesinkwa kanye nebhisikidi, ubhontshisi wekhofi.
I-PLA ikhiqizwa kanjani?
I-PLA yi-polyester (i-polymer equkethe iqembu le-ester) elenziwe ngama-monomers amabili noma amabhlogo wokwakha: i-lactic acid, kanye ne-lactide. I-LacticIC Acid ingakhiqizwa ukuvutshelwa kwamagciwane komthombo we-carbohydrte ngaphansi kwezimo ezilawulwayo. Emkhiqizweni wesilinganiso sezimboni se-lactic acid, umthombo wokukhetha we-carbohydrte ungaba ngumlobi we-corn, izimpande ze-cassava, noma umoba, wenza inqubo isebenze futhi iphinde ivuseleleke.
Inzuzo yezemvelo ye-PLA
I-PLA iyi-biodegradable ngaphansi kwezimo zomquba wezentengiselwano futhi izophuka kungakapheli amasonto ayishumi nambili, okwenza kube ukukhetha okuthe xaxa uma kukhulunywa ngamapulasitiki ngokuhlukahlukana nokugcina ama-microplastics.
Inqubo yokukhiqiza ye-Pla futhi inobungani obuthe xaxa kunalokho kwamapulasili endabuko adalwe ngezinsizakusebenza zezinsalela zokugcina. Ngokusho kocwaningo, ukukhishwa kwekhabhoni okuhambisana nokukhiqizwa kwe-PLA kuma-80% aphansi kunalokho kwepulasitiki yendabuko (umthombo).
I-PLA ingavuselelwa njengoba ingadilizwa i-monomer yayo yasekuqaleni yinqubo ye-depolymerization ye-thermal noma nge-hydrolysis. Umphumela uyisixazululo se-monomer esingahlanzwa futhi sisetshenziselwe ukukhiqizwa kwe-PLA okulandelayo ngaphandle kokulahlekelwa yikhwalithi.
Isikhathi Seposi: Jan-31-2023