Polylactic acid, tseem hu ua polylactide, belongs rau tsev neeg polyester.Polylactic acid (PLA) yog ib qho polymerized nrog lactic acid ua cov khoom siv tseem ceeb.Cov ntaub ntawv raw yog ntau thiab tuaj yeem rov tsim dua tshiab.Cov txheej txheem ntau lawm ntawm polylactic acid tsis muaj kuab paug, thiab cov khoom tuaj yeem ua biodegradable, paub txog kev ncig hauv xwm, yog li nws yog cov khoom siv ntsuab zoo tagnrho.Polylactic acid (PLA) yog ib yam tshiab ntawm biodegradable khoom.Nws yog tsim los ntawm cov hmoov txhuv nplej siab tau muab rho tawm los ntawm cov khoom siv cog qoob loo (xws li pob kws) los ntawm kev fermentation, thiab tom qab ntawd hloov mus rau hauv polylactic acid los ntawm polymer synthesis.
Polylactic acid yog tsim rau tshuab moulding, txhaj tshuaj molding thiab lwm txoj kev ua.Nws yog ib qho yooj yim rau txheej txheem thiab dav siv.Nws tuaj yeem siv los ua ntau yam khoom ntim khoom noj, ntim khoom noj, cov thawv ntim khoom noj ceev ceev, cov ntaub ntawv tsis-woven, kev lag luam thiab pej xeem fabrics los ntawm kev lag luam mus rau pej xeem siv.Thiab tom qab ntawd nws tuaj yeem ua tiav rau hauv cov ntaub ntawv ua liaj ua teb, cov ntaub ntawv kho mob, cov plua plav, cov khoom siv huv, sab nraum zoov UV resistant fabrics, tsev pheeb suab ntaub, ntaub pua plag, thiab lwm yam.Nws tuaj yeem pom tias nws cov khoom siv kho tshuab thiab lub cev zoo.
Dab tsi yog qhov zoo ntawm raw khoom PLA?
1. Nws muaj biodegradability zoo.Tom qab siv, nws tuaj yeem degraded tag nrho los ntawm cov kab mob hauv cov xwm txheej hauv cov xwm txheej tshwj xeeb, thiab thaum kawg tsim cov pa roj carbon dioxide thiab dej, tsis muaj kuab paug rau ib puag ncig.Txoj kev kho mob ntawm cov yas zoo tib yam tseem kub hnyiab tau, uas ua rau muaj ntau lub tsev cog khoom gases tawm mus rau saum huab cua, thaum polylactic acid (PLA) plastics tau faus rau hauv av kom degradation, thiab carbon dioxide generated ncaj qha nkag mus rau hauv cov av. av organic teeb meem los yog absorbed los ntawm cov nroj tsuag, uas yuav tsis tau tawm mus rau hauv cov huab cua thiab yuav tsis tsim ib lub tsev xog paj.
2. Zoo txhua yam thiab lub cev muaj zog.Nws yog ib qho yooj yim rau txheej txheem, dav siv, thiab muaj kev lag luam zoo heev.
3. Zoo compatibility thiab degradability.Nws kuj yog siv dav hauv kev kho mob.
4. Polylactic acid (PLA) zoo ib yam li petrochemical hluavtaws plastics hauv cov khoom siv lub cev thiab tuaj yeem siv los tsim ntau yam khoom siv.Poly (lactic acid) (PLA) kuj muaj luster zoo thiab pob tshab, uas yog sib npaug rau cov yeeb yaj kiab ua los ntawm polystyrene thiab tsis tuaj yeem muab los ntawm lwm cov khoom siv biodegradable.
5. Polylactic acid (PLA) muaj lub zog tensile zoo tshaj plaws thiab ductility, thiab tseem tuaj yeem tsim los ntawm ntau txoj kev ua haujlwm.Poly lactic acid (PLA) tuaj yeem ua rau ntau yam khoom raws li qhov xav tau ntawm kev lag luam sib txawv.
6. Poly (lactic acid) (PLA) zaj duab xis muaj huab cua zoo permeability, oxygen permeability thiab carbon dioxide permeability, thiab nws kuj muaj cov yam ntxwv ntawm kev cais tawm tsw.Cov kab mob thiab cov pwm yog ib qho yooj yim mus txuas rau saum npoo ntawm biodegradable plastics, yog li muaj kev tsis ntseeg txog kev nyab xeeb thiab kev nyiam huv.Txawm li cas los xij, polylactic acid tsuas yog biodegradable plastics uas muaj cov kab mob zoo heev thiab tiv thaiv pwm.
7. Thaum PLA yog incinerated, nws combustion nqi yog tib yam li ntawm daim ntawv, uas yog ib nrab ntawm cov tsoos plastics (xws li polyethylene).Tsis tas li ntawd, nws yuav tsis tso cov nitrogen tebchaw, sulfide thiab lwm yam pa phem.
Lub sij hawm xa tuaj: Plaub Hlis-11-2023