Polylactic acid (PLA) bụ akwụkwọ akụkọ ihe mere eme nke biodegradad nwere ike megharia, nke sitere na ihe starch sitere na ihe ọkụkụ enwere ike imeghari (dị ka ọka na akpu).A na-edobe ngwa nri starch iji nweta glucose, mgbe ahụ, a na-emepụta lactic acid dị ọcha site na gbaa ụka nke glucose na ụdị ụfọdụ, mgbe ahụ, POlylactic acid nwere ihe dị arọ nke molecular sitere na njikọ kemịkalụ.Ọ nwere ezigbo biodegradability.Mgbe ejiri ya, ọ nwere ike imebi ya kpamkpam site na microorganisms na ọdịdị n'okpuru ọnọdụ ụfọdụ, ma mesịa mepụta carbon dioxide na mmiri.Ọ naghị emetọ gburugburu ebe obibi, nke bara uru nke ukwuu maka nchebe nke gburugburu ebe obibi ma mara ya dị ka ihe na-eme ka gburugburu ebe obibi.China PP na-adịghị kpara akpa ọnụ ahịa
PLA,dịkwa ka otu ụdịPET spunbond,nwere ọmarịcha drapability, ire ụtọ, nnabata mmiri na ikuku ikuku, bacteriostasis eke na akpụkpọ ahụ na-emesi obi ike acid adịghị ike, ezigbo nguzogide okpomọkụ na nguzogide UV.
Edere PLA niile dị ka: polylactic acid
Polylactic acid, nke a makwaara dị ka polylactide, bụ nke ezinụlọ polyester.Polylactic acid (PLA) bụ polymer enwetara site na polymerization nke lactic acid dị ka isi akụrụngwa.Isi iyi akụrụngwa zuru oke ma enwere ike ịmegharị ya.Ọ na-ejikarị ọka na akpu mee ihe dị ka akụrụngwa.Usoro mmepụta nke PLA enweghị mmetọ, na ngwaahịa nwere ike imebi ya iji ghọta okirikiri na ọdịdị, ya mere ọ bụ ezigbo ihe onwunwe polymer green.
Polylactic acid nwere ezi thermal kwụsie ike, nhazi okpomọkụ 170 ~ 230 ℃, ezi ihe mgbaze eguzogide, nwere ike esichara na a dịgasị iche iche nke ụzọ, dị ka extrusion, spinning, biaxial agbatị, injection igbu ịkpụzi.Ngwaahịa nke polylactic acid abụghị naanị ihe na-emebi emebi, kamakwa ọ nwere ezigbo biocompatibility, gloss, nghọta, mmetụta na nguzogide okpomọkụ.Ha nwekwara ụfọdụ nje na-eguzogide ọgwụ, ire ọkụ retardant na UV na-eguzogide, n'ihi ya, ha na-ọtụtụ ebe na-eji dị ka nkwakọ ihe, emep uta eri na nonwovens, wdg Ugbu a, ọ bụ tumadi ji uwe (uwe ime, outerwear), ụlọ ọrụ (ewu, ugbo, ọhịa). , Ime akwụkwọ) na ngalaba ahụike na ahụike.
Oge nzipu: Ọgọst-24-2022