Polylactic acid (H-[OCHCH3CO]n-OH) muaj qhov zoo thermal stability, ua haujlwm kub yog 170 ~ 230 ℃, thiab nws muaj qhov hnyav hnyav.Nws tuaj yeem ua tiav ntau txoj hauv kev, xws li extrusion, spinning, biaxial stretching, Txhaj tshuab moulding.Ntxiv nrog rau kev ua biodegradable, cov khoom ua los ntawm polylactic acid muaj biocompatibility zoo, gloss, pob tshab, tes xav thiab kub tsis kam.Cov polylactic acid (PLA) tsim los ntawm Guanghua Weiye kuj muaj qee yam tshuaj tua kab mob thiab nplaim hluav taws.Thiab UV tsis kam, yog li nws muaj ntau yam kev siv.Nws tuaj yeem siv los ua cov ntaub ntawv ntim khoom, fibers thiab nonwovens, thiab lwm yam. Nws yog siv rau hauv cov khaub ncaws (cov ris tsho hauv qab, tsho sab nrauv), kev lag luam (tsim, kev ua liaj ua teb, hav zoov, papermaking), thiab kev kho mob thiab kev noj qab haus huv.
Lub ntsiab zoo ntawm polylactic acid yog raws li nram no:
Polylactic acid (PLA) yog ib yam tshiab ntawm biodegradable cov ntaub ntawv, ua los ntawm cov hmoov txhuv nplej siab raw cov ntaub ntawv thov los ntawm cov khoom siv cog dua tshiab (xws li pob kws).Cov hmoov txhuv nplej siab raw cov ntaub ntawv yog saccharified kom tau cov piam thaj, uas yog tom qab ntawd fermented nrog qabzib thiab qee hom los tsim cov purity lactic acid, thiab tom qab ntawd qee qhov hnyav molecular polylactic acid yog tsim los ntawm cov tshuaj synthesis.Nws muaj biodegradability zoo.Tom qab siv, nws tuaj yeem degraded los ntawm cov kab mob hauv qhov xwm txheej, thiab thaum kawg carbon dioxide thiab dej tsim tawm yam tsis muaj kuab paug ib puag ncig.Qhov no muaj txiaj ntsig zoo rau kev tiv thaiv ib puag ncig thiab tau lees paub tias yog cov khoom siv zoo ib puag ncig.Ordinary plastics tseem raug kho los ntawm incineration thiab cremation, ua rau muaj ntau cov tsev xog paj gases tawm mus rau saum huab cua, thaum polylactic acid plastics tau faus rau hauv av kom degrade, thiab cov pa roj carbon dioxide uas tsim ncaj qha nkag mus rau hauv av organic teeb meem los yog absorbed. los ntawm cov nroj tsuag, thiab yuav tsis raug tso tawm rau saum huab cua.Yuav tsis ua rau lub tsev xog paj.
Post lub sij hawm: Jan-06-2021