Thaum pib ntawm kev txwv txiav yas, yuav tsum muaj ntau tus menyuam xav paub tias cov yas biodegradable yog dab tsi.Dab tsi yog qhov txawv ntawm cov yas degradable thiab cov yas tsis-degradable?Vim li cas peb siv biodegradable?cov khoom yas?Dab tsi yog qhov zoo ntawm biodegradable plastics? Cia peb saib cov ntsiab lus.

Degradable plastics hais txog ib hom yas uas nws cov khoom muaj peev xwm ua tau raws li cov kev xav tau ntawm kev siv thiab tsis hloov pauv thaum lub sijhawm txee lub neej, tab sis tuaj yeem degraded rau hauv cov khoom uas tsis muaj kev phom sij rau ib puag ncig hauv ib puag ncig ntuj tom qab siv.Yog li ntawd, nws yog ib puag ncig degradable plastics.

Tam sim no, muaj ntau hom yas tshiab: biodegradable plastics, photodegradable plastics, lub teeb, oxidation / biodegradable plastics, carbon dioxide-based biodegradable plastics, thermoplastic starch resin degradable plastics.Cov hnab yas degradable (uas yog, cov hnab yas zoo ib puag ncig) yog ua los ntawm cov khoom siv polymer xws liPLA, PHAs, PA, PBS.Lub hnab yas tsis-degradable yog ua los ntawm PE yas.

Qhov zoo ntawm cov yas degradable:
Piv nrog rau cov "cov khib nyiab dawb" cov yas uas tuaj yeem ploj mus rau ntau pua xyoo, nyob rau hauv cov xwm txheej hauv av, cov khoom siv biodegradable tag nrho tuaj yeem decomposed los ntawm ntau tshaj 90% ntawm cov kab mob hauv 30 hnub thiab nkag mus rau qhov xwm txheej hauv daim ntawv carbon dioxide thiab dej.Nyob rau hauv cov xwm txheej uas tsis yog composting, qhov tsis kho ntawm cov khoom siv biodegradable tag nrho ntawm cov khoom siv khib nyiab yuav maj mam degrade hauv 2 xyoos.
Cov hnab yas degradable feem ntau tuaj yeem decomposed hauv ib xyoos, thaum Olympic kev tiv thaiv ib puag ncigyas funnelstuaj yeem pib decompose 72 hnub tom qab muab pov tseg.Cov hnab yas tsis-degradable siv 200 xyoo kom degrade.

Muaj ob lub ntsiab siv ntawm cov yas degradable:

Ib qho yog thaj chaw uas cov yas zoo tib yam tau siv thaum xub thawj.Hauv cov cheeb tsam no, qhov nyuaj ntawm kev sau cov khoom yas tom qab siv lossis siv yuav ua rau muaj kev puas tsuaj rau ib puag ncig, xws li kev ua liaj ua teb yas zaj duab xis thiab cov ntim yas pov tseg.
Qhov thib ob yog kev hloov pauv lwm cov ntaub ntawv nrog cov yas.Kev siv cov yas degradable nyob rau hauv cov cheeb tsam no tuaj yeem nqa tau yooj yim, xws li cov ntsia hlau rau cov kev kawm ntaus golf thiab cov khoom siv kho cov yub cog rau kev cog qoob loo hauv hav zoov hav zoov.

Nrog rau cov khw muag khoom loj, nqa tawm, noj mov thiab lwm qhov chaw tau teb rau cov kev txwv yas, nquag txhawb kev siv cov khoom yas biodegradable, qhov sib txawv ntawm cov yas degradable thiab cov yas tsis degradable thiab qhov zoo ntawm cov yas degradable kuj tau muab rau txhua tus.
Tam sim no, ntau qhov kev hloov pauv rau cov khoom yas tseem tab tom tshawb nrhiav.