Gịnị bụ Pla fim?
PA fim bụ ihe nkiri mara ụlọ na gburugburu ebe obibi na gburugburu ebe obibi nke porn-ke aciatic acid.organic dị ka ọka stachi ma ọ bụ iko shuga. Iji ihe omimi Biomass na-eme ka emepụta pla dị iche na plastik, nke a na-emepụta site na iji ihe ọkụ na polmerization nke petrolem.
N'agbanyeghị ọdịiche anụ ahụ nke akụrụngwa, enwere ike mepụta site na iji otu akụrụngwa dị ka plastic plastic, na-eme usoro ịkpata platy dị iche iche. PLA bụ nke abụọ arụpụtara na-arụpụta ihe na-emepụta (mgbe thermoplastic starch) ma nwee njirimara yiri nke polypropylene (PP), ma ọ bụ polystyrene (ps), yana ndị na-eme ihe nkiri.
Ihe nkiri ahụ nwere ezigbo nghọta,Ezigbo tensile ike,A na-ewuli ezigbo isi ike na ihe nkiri siri ike.
PA fim gosiri na ọ bụ otu n'ime ihe nkiri ndị kachasị mma na ụlọ ọrụ nkwakọ ngwaahịa na-agbanwe agbanwe, ma ugbu a ejirila ya na ngwugwu maka ifuru, onyinye, nri na bikiki, agwa kọfị.
Olee otú e si mepụta PRA?
PLA bụ polyester (polymer nwere otu Ester) emere na monomo ma ọ bụ ụlọ mgbochi: lactic acid, na lactide. Enwere ike mepụta lactic acid site na ntụgharị nke nje carbohydrate n'okpuru ọnọdụ achịkwa. Na mmepụta ụlọ ọrụ nke lactic acid, ebe a carbohydrate isi nhọrọ nwere ike ịbụ ọka stachi, cassava mgbọrọgwụ, ma ọ bụ okpete, na-eme ka usoro a na - emegharị.
Uru nke Ukwuu nke Pla
PLA bụ biodegradable n'okpuru ebe a na-ere ahịa azụmahịa ma ga-emebi n'ime izu iri na abụọ, na-eme ka ọ bụrụ ebe obibi na plastics nke nwere ike ime ka ọtụtụ narị mgbasa ozi na-emepụta microplastics.
Usoro na-arụpụta maka Pla na-enwekarị ebe obibi karịa nke eji plastik ọdịnala site na obere ego. Dabere na nyocha, igwe eji eme ihe carbon metụtara Plammịpụta bụ 80% dị ala karịa nke ọdịnala ọdịnala (isi iyi).
Enwere ike ịmegharị ya dịka ọ nwere ike imebi ya na monomer mbụ ya site na usoro ebe a na-eme ihe ọkụ ma ọ bụ site na hydrolysis. Ihe ga - esite ya bụ ngwọta monomer nke enwere ike iji kpochaa ma jiri ya mee ihe na - emepụta Plala na - enweghị ọnwụ ọ bụla.
Oge post: Jan-31-2023