Dab tsi yog degradable yas?
Kev degradation ntawm plastics yog ib lub tswv yim loj uas hais txog cov yas uas, dhau ib lub sijhawm thiab koom nrog ib lossis ntau cov kauj ruam raws li kev cai ib puag ncig, ua rau muaj kev hloov pauv loj hauv cov qauv tshuaj ntawm cov khoom uas ua rau poob ntawm qee yam khoom (xws li kev ncaj ncees. , molecular mass, qauv lossis mechanical zog) thiab / lossis tawg.Ntawm lawv, photodegraded plastics thiab thermo-oxygenated plastics yog cov yas tawg thiab yuav tsum tsis txhob raug ntaus nqi rau biodegradable plastics.Cov yas degradable yuav tsum tau sim siv cov qauv kev sim uas muaj kev cuam tshuam txog kev hloov pauv ntawm kev ua haujlwm thiab yuav tsum tau muab cais raws li hom degradation thiab lub sijhawm siv.Yog tias tsis muaj kev sib txuas ntawm cov yas degradable thiab nws qhov kev puas tsuaj ib puag ncig, thiab feem ntau hais tias cov yas degradable, tsis tau txhais hais tias cov yas zoo li no tuaj yeem degraded tag nrho rau hauv ib puag ncig cov khoom.