Polylactic acid (PLA), tseem hu ua polylactide, yog aliphatic polyester ua los ntawm lub cev qhuav dej polymerization ntawm lactic acid uas ua los ntawm microbial fermentation ua monomer. Nws siv biomass tauj dua tshiab xws li pob kws, qab zib cane, thiab cassava ua raw cov ntaub ntawv, thiab muaj ntau qhov chaw thiab tuaj yeem rov ua dua tshiab. Cov txheej txheem ntau lawm ntawm polylactic acid yog cov pa roj carbon tsawg, ib puag ncig tus phooj ywg, thiab muaj kuab paug tsawg. Tom qab siv, nws cov khoom tuaj yeem ua tau composted thiab degraded kom paub txog lub voj voog hauv qhov xwm txheej. Tsis tas li ntawd, nws tau siv dav thiab muaj tus nqi qis dua li lwm cov khoom siv degradable xws li PBAT, PBS, thiab PHA. Yog li ntawd, nws tau dhau los ua cov khoom siv biodegradable tshaj plaws thiab ceev tshaj plaws hauv xyoo tas los no.

Txoj kev loj hlob ntawm polylactic acid muaj nuj nqis heev thoob ntiaj teb. Hauv 2019, lub ntiaj teb PLA cov ntawv thov tseem ceeb hauv kev ntim khoom thiab cov tais diav, kev kho mob thiab kev saib xyuas tus kheej, cov khoom siv yeeb yaj kiab, thiab lwm yam kev lag luam kawg suav txog 66%, 28%, 2%, thiab 3% feem.

Kev lag luam daim ntawv thov ntawm polylactic acid tseem yog cov khoom siv pov tseg thiab ntim khoom noj nrog lub sijhawm luv luv, ua raws li cov khoom siv ib nrab los yog siv ntau yam. Cov khoom siv ua yeeb yaj kiab xws li cov hnab yuav khoom thiab cov khoom siv mulch tau txais kev txhawb nqa los ntawm tsoomfwv, thiab kev lag luam loj yuav muaj qhov dhia loj hauv lub sijhawm luv. Kev ua lag luam rau cov khoom siv fiber ntau pov tseg xws li cov ntaub so ntswg thiab cov ntaub so ntswg kuj tseem tuaj yeem nce siab raws li cov kev cai ntawm kev cai, tab sis nws cov cuab yeej sib xyaw tseem xav tau kev ua tiav. Cov khoom tshwj xeeb, xws li 3D luam ntawv me me tab sis muaj txiaj ntsig ntxiv, thiab cov khoom siv uas yuav tsum tau siv ntev lossis kub kub, xws li cov khoom siv hluav taws xob thiab tsheb.

Nws kwv yees tias txhua xyoo muaj peev xwm ntawm polylactic acid thoob ntiaj teb (tshwj tsis yog Tuam Tshoj) yog kwv yees li 150,000 tons thiab cov khoom txhua xyoo yog kwv yees li 120,000 tons ua ntej 2015. Hais txog kev lag luam, txij xyoo 2015 txog 2020, lub ntiaj teb polylactic acid kev lag luam yuav loj hlob sai. ntawm qhov sib xyaw ua ke txhua xyoo kev loj hlob ntawm kwv yees li 20%, thiab kev lag luam zeem muag zoo.
Hais txog cov cheeb tsam, Tebchaws Meskas yog lub hauv paus loj tshaj plaws ntawm polylactic acid, ua raws li Tuam Tshoj, nrog rau kev lag luam feem ntau ntawm 14% hauv 2018. Hais txog kev noj hauv cheeb tsam, Tebchaws Meskas tseem tuav nws txoj haujlwm ua thawj coj. Nyob rau tib lub sijhawm, nws tseem yog lub ntiaj teb tus xa khoom loj tshaj plaws. Hauv xyoo 2018, kev lag luam thoob ntiaj teb polylactic acid (PLA) muaj nqis txog US $ 659 lab. Raws li cov yas degradable nrog kev ua tau zoo heev. Cov neeg lag luam sab hauv muaj kev cia siab txog kev ua lag luam yav tom ntej