Polylactic acid (PLA) bụ ụdị ọhụrụ sitere na biodegradad nke nwere ike imeghari biodegradad, nke sitere na akụrụngwa starch na-atụpụta site na akụrụngwa osisi enwere ike imeghari (dịka ọka, akpu, wdg).A na-awụsa ngwa nri starch iji nweta glucose, wee gbakọọ ya site na glucose na ụdị ụfọdụ iji mepụta lactic acid dị ọcha, mgbe ahụ, a na-eji usoro njikọ kemịkalụ mee polylactic acid n'ụfọdụ arọ molekụla.Ọ nwere ezigbo biodegradability, na enwere ike imebi ya kpam kpam site na microorganisms na okike n'okpuru ọnọdụ ụfọdụ mgbe ejiri ya mee ihe, na-emecha na-emepụta carbon dioxide na mmiri, na-emetọghị gburugburu ebe obibi, nke bara ezigbo uru maka ichebe gburugburu ebe obibi na a ghọtara dị ka ihe na-emetụta gburugburu ebe obibi.
Polylactic acid nwere ezi thermal kwụsie ike, nhazi okpomọkụ bụ 170 ~ 230 ℃, na o nwere ezi ihe mgbaze na-eguzogide.Enwere ike ịhazi ya n'ụzọ dị iche iche, dị ka extrusion, spinning, biaxial stretching, na injection injection.Na mgbakwunye na ịbụ biodegradable, ngwaahịa ndị sitere na polylactic acid nwere ezigbo biocompatibility, gloss, transparency, mmetụta aka na nguzogide okpomọkụ, yana ụfọdụ mgbochi nje bacteria, ire ọkụ na nguzogide UV, ya mere ha bara uru nke ukwuu.A na-eji ya eme ihe dị ka ihe nkwakọba ihe, eriri na ihe ndị na-abụghị nke, wdg, nke a na-ejikarị eme ihe ugbu a na uwe (uwe ime, uwe elu), ụlọ ọrụ (ihe owuwu, ọrụ ugbo, ọhịa, akwụkwọ) na ahụike na ahụike.
Oge nzipu: Sep-19-2022