Kedu ihe bụ PLA FIM?
Ihe nkiri PLA bụ ihe nkiri na-emebi emebi na gburugburu ebe obibi nke sitere na polylactic acid resin ọka.Iji akụ biomass eme ihe na-eme ka mmepụta PLA dị iche na ọtụtụ plastik, nke a na-emepụta site na iji mmanụ ọkụ sitere na distillation na polymerization nke mmanụ ala.
N'agbanyeghị ọdịiche akụrụngwa, enwere ike imepụta PLA site na iji otu akụrụngwa dị ka plastik petrochemical, na-eme ka usoro nrụpụta PLA dị ọnụ ahịa nke ọma.PLA bụ bioplastic nke abụọ emepụtara (mgbe starch thermoplastic) ma nwee njirimara yiri ya na polypropylene (PP), polyethylene (PE), ma ọ bụ polystyrene (PS), yana ịbụ ihe na-emebi emebi.
Ihe nkiri a nwere ezigbo nkọwa,Ike ike dị mma,na ezigbo isi ike na isi ike.Ihe nkiri PLA anyị kwadoro maka composting dị ka akwụkwọ EN 13432 si kwuo.
Ihe nkiri PLA na-egosi na ọ bụ otu n'ime ihe nkiri nkwakọ ngwaahịa kachasị elu na ụlọ ọrụ nkwakọ ngwaahịa na-agbanwe agbanwe, ma ugbu a ejirila ya na ngwugwu maka ifuru, onyinye, nri dị ka achịcha na bisikiiti, kọfị kọfị.
Olee otú e si emepụta PLA?
PLA bụ polyester (polymer nwere otu ester) nke ejiri monomers abụọ nwere ike ime ma ọ bụ ihe mgbochi ụlọ: lactic acid, na lactide.Enwere ike imepụta lactic acid site na gbaa ụka nje nke isi iyi carbohydrate n'okpuru ọnọdụ a na-achịkwa.N'ime mmepụta nke lactic acid nke ụlọ ọrụ mmepụta ihe, isi iyi nke carbohydrate a na-ahọrọ nwere ike ịbụ starch ọka, mgbọrọgwụ akpu, ma ọ bụ okpete, na-eme ka usoro ahụ dịgide ma na-emegharị ya.
Uru Gburugburu Ebe Obibi PLA
PLA bụ ihe na-emebi emebi n'okpuru ọnọdụ ịkwakọ ngwaahịa azụmahịa, ọ ga-emebikwa n'ime izu iri na abụọ, na-eme ka ọ bụrụ nhọrọ gburugburu ebe obibi ma a bịa na plastik dị iche na plastik ọdịnala nke nwere ike were ọtụtụ narị afọ ire ere wee mechaa mepụta microplastics.
Usoro nrụpụta maka PLA dịkwa mma na gburugburu ebe obibi karịa nke plastik ọdịnala emere site na akụrụngwa fosil nwere oke.Dị ka nchọpụta si kwuo, ikuku carbon na-ejikọta na mmepụta PLA dị 80% dị ala karịa nke plastik omenala (isi iyi).
Enwere ike ịmegharị PLA ka enwere ike imebi ya na monomer mbụ ya site na usoro ikpochapu ọkụ ma ọ bụ site na hydrolysis.Ihe si na ya pụta bụ ngwọta monomer nke nwere ike ime ka ọ dị ọcha ma jiri ya mee ihe maka mmepụta PLA na-esote na-enweghị ihe ọ bụla dị mma.
Oge nzipu: Jan-31-2023