Cov khoom ntawm Pla Material, Puas yog tshuaj lom?
Oct 10, 2023
Cov khoom siv PLA luv luv rau polylactic acid, tag nrho cov ntawv sau ua: polylactic acid. Nws yog tsuas yog tau los ntawm fermentation ntawm cov nroj tsuag starch. Nws yog hom tshiab ntawm kev tiv thaiv ib puag ncig thiab cov khoom tsis muaj kuab lom. Vim lub sij hawm tso tawm tsis ntev heev, kev txhawb nqa hauv tsev tsis txaus, ntau tus neeg tsis nkag siab cov khoom no, thiab txawm tias qee cov lus nug txog nws txoj kev nyab xeeb.
PLA yog qhov tsim nyog rau kev tsim cov khoom siv pov tseg, cov khoom siv raw khoom kub tsis kam ntawm 60 degrees, tom qab kev hloov kho tuaj yeem ncav cuag 110 degrees lossis ntau dua. Piv nrog rau lwm yam xws li PP, PS, PET, thiab lwm yam, PLA muaj kev nyab xeeb dua, muaj zog toughness, tsis tawg, thiab tuaj yeem degraded tag nrho. Txawm li cas los xij, vim tias cov khoom siv raw yog opaque lossis translucent, nws tsis tuaj yeem ua kom zoo nkauj li PP tableware, feem ntau yog milky dawb. Tom qab kev hloov kho, nws kuj tuaj yeem ua pob tshab, tab sis tseem muaj qhov deb ntawm qhov pom ntawm PP thiab PET cov ntaub ntawv. Tam sim no cov neeg tawm tswv yim txawv teb chaws ntawm kev tiv thaiv ib puag ncig thiab cov neeg tsis muaj roj carbon tsawg, tau pib siv PLA khob / LIDS, tais, diav rawg thiab diav es tsis txhob PP, PS, PET cov tais diav pov tseg.
PLA yog tsim los ntawm cov hmoov txhuv nplej siab tau los ntawm cov khoom siv txuas ntxiv dua tshiab xws li pob kws. Starch raw cov ntaub ntawv los ntawm saccharification kom tau cov piam thaj, thiab tom qab ntawd los ntawm cov piam thaj thiab qee yam fermentation los tsim cov purity lactic acid siab, thiab tom qab ntawd los ntawm cov txheej txheem tshuaj synthesis los ua ib qho hnyav molecular ntawm polylactic acid. Nws muaj biodegradability zoo, tom qab siv, nws tuaj yeem degraded tag nrho los ntawm cov kab mob hauv cov kab mob hauv cov xwm txheej tshwj xeeb, thiab thaum kawg tsim cov pa roj carbon dioxide thiab dej, uas tsis ua phem rau ib puag ncig, uas muaj txiaj ntsig zoo rau kev tiv thaiv ib puag ncig, thiab tau lees paub. raws li ib puag ncig tus phooj ywg ntsuab polymer khoom.
PLA PLA muaj cov thermal stability zoo, ua haujlwm kub 170 ~ 230 degree, muaj cov kuab tshuaj tiv thaiv zoo, tuaj yeem ua tiav ntau yam, xws li extrusion, spinning, biaxial stretching, txhaj tshuaj molding. Cov khoom ua los ntawm polylactic acid ntxiv rau biodegradation, biocompatibility, gloss, transparency, hnov thiab kub tsis kam, tab sis kuj muaj ib tug tej yam degree ntawm cov kab mob kuj, nplaim retardant thiab UV kuj, yog li siv dav heev, yuav siv tau raws li cov ntaub ntawv ntim. , fibers thiab nonwovens, thiab lwm yam Tam sim no, nws yog tsuas yog siv nyob rau hauv pov tseg tableware, khaub ncaws (pob tsho hauv qab, outerwear), kev lag luam (kev tsim kho, ua liaj ua teb, hav zoov, papermaking) thiab kev kho mob thiab kev noj qab haus huv teb.
