Tam sim no cov khoom siv degradable nrov tshaj plaws yogPLAthiab PBAT, ob qho tib si yog biodegradable tag nrho.
Cov yas degradablexa mus rau ib chav kawm ntawm cov yas uas nws cov khoom muaj peev xwm ua tau raws li qhov yuav tsum tau siv ntawm kev ua tau zoo, nyob twj ywm tsis hloov thaum lub sij hawm cia, thiab tuaj yeem degraded rau hauv ib puag ncig yam tsis muaj teeb meem nyob rau hauv tej yam ntuj tso tej yam kev mob tom qab siv.Yog li ntawd, nws tseem hu ua environmentally degradable yas.
Muaj ntau yam tshiab ntawm cov yas: photodegradable plastics, biodegradable plastics,Lub teeb/oxidation/biologically degradable plastics, carbon dioxide-based biodegradable plastics, thiab thermoplastic starch resin degradable plastics.
Polymer degradation yog hais txog cov txheej txheem ntawm kev rhuav tshem polymerized macromolecular chains vim yog tshuaj lom neeg thiab lub cev.Cov txheej txheem degradation ntawm macromolecular saw breakage ntawm polymers raug oxygen, dej, hluav taws xob, tshuaj, kuab paug, mechanical rog, kab thiab lwm yam tsiaj thiab microorganisms yog hu ua ib puag ncig degradation.
Degradation txo qhov hnyav molecular ntawm cov polymer, thiab lub cev lub cev ntawm cov khoom siv polymer txo kom txog thaum cov khoom siv polymer poob nws qhov kev siv.Qhov tshwm sim no tseem hu ua kev laus degradation ntawm cov khoom siv polymer.
Kev laus degradation ntawm polymers yog ncaj qha ntsig txog kev ruaj ntseg ntawm polymers.Kev laus degradation ntawm polymers shortens lub neej kev pab cuam ntawm plastics.Vim li no, txij li thaum lub sij hawm ntawm plastics, cov kws tshawb fawb tau mob siab rau lawv tus kheej rau kev tshawb fawb txog kev tiv thaiv kev laus ntawm cov ntaub ntawv no, uas yog, kev ruaj khov, txhawm rau tsim cov khoom siv polymer ruaj khov, thiab cov kws tshawb fawb los ntawm ntau lub teb chaws kuj tau siv. kev laus degradation cwj pwm ntawm polymers.Kev sib tw los tsim ib puag ncig degradable plastics.
Lub ntsiab daim ntawv thov teb ntawm degradable plastics yog: ua liaj ua teb mulch zaj duab xis, ntau yam pyas ntim hnab,cov hnab khib nyiab, hnab ntim khoom hauv khw muag khoom thiab cov khoom siv pov tseg, thiab lwm yam.
Post lub sij hawm: Oct-18-2022