Dab Tsi Yog Qhov?

Cov cuab yeej ntawm biodegradability tsis yog nyob ntawm qhov peev txheej ntawm ib yam khoom. Cov yam ntxwv no cuam tshuam ncaj qha rau cov qauv tshuaj ntawm cov polymer thiab tuaj yeem muaj txiaj ntsig zoo rau cov ntawv thov tshwj xeeb, hauv kev ntim khoom tshwj xeeb. Biodegradable yas hom muaj txoj kev tshiab ntawm kev rov ua dua tshiab thiab rov ua dua tshiab (organic rov ua dua tshiab). Yog tias tau ntawv pov thawj compostable raws li cov qauv thoob ntiaj teb xws li EN 13432 (zoo dua los ntawm tus neeg sab nraud), cov yas no tuaj yeem muab xau hauv cov nroj tsuag muaj kev cog qoob loo.

Bioplastics yog tsev neeg loj ntawm cov khoom sib txawv

Bioplastics tsis yog ib qho khoom siv xwb. Lawv suav nrog tag nrho tsev neeg ntawm cov ntaub ntawv nrog cov khoom sib txawv thiab daim ntawv thov. Raws li European Bioplastics, cov khoom yas yog txhais tau tias yog bioplastic yog tias nws yog biobased, biodegradable, lossis cov yam ntxwv ob qho tib si.

Bioplastics yog biobased, biodegradable, lossis ob qho tib si.

Biobased: Lo lus 'biobased' txhais tau hais tias cov khoom siv lossis cov khoom lag luam yog (ib nrab) muab tau los ntawm biomass (nroj tsuag). Biomass siv rau bioplastics stems los ntawm xws li pob kws, kab tsib, lossis cellulose.

Nws yog kev dag ntxias kom tsuas yog thov biodegradability tsis muaj ib qho qauv txheej txheem. Yog tias ib qho khoom siv lossis cov khoom lag luam tau tshaj tawm biodegradable, cov ntaub ntawv ntxiv txog lub sijhawm, qib biodegradation, thiab cov puag ncig uas yuav tsum tau yuav tsum tau muab, ib yam nkaus.

Txhua qhov chaw ua tau, European Bioplastics xav kom tsom mus rau qhov kev thov tshwj xeeb ntau dua ntawm kev ua kom muaj kev lwg nyom, thiab thim rov qab nws nrog cov ntawv sau sib xws (ISO 17088, EN 13432/14995 lossis ASTM 6400 lossis 6868), cov ntawv pov thawj, thiab daim ntawv lo cim (cov ntawv sau yub ntawm TÜV AUSTRIA Belgium los yog DIN CERTCO, OK muab daim ntawv sau npe los ntawm TÜV AUSTRIA Belgium).

Biodegradable: Biodegradation yog txheej txheem tshuaj thaum lub sij hawm cov kab mob me me uas muaj nyob hauv ib puag ncig hloov cov ntaub ntawv mus rau hauv cov khoom ntuj tsim xws li dej, carbon dioxide, thiab nplooj lwg (cov khoom siv ntxiv tsis tas). Cov txheej txheem ntawm biodegradation nyob ntawm puag ncig ib puag ncig puag ncig (piv txwv li thaj chaw lossis qhov kub thiab txias), ntawm cov khoom siv thiab hauv daim ntawv thov.

'Biobased' tsis sib npaug 'biodegradable'

Cov cuab yeej ntawm biodegradation tsis nyob ntawm qhov peev txheej hauv qab ntawm cov khoom siv tab sis yog theej txuas rau nws cov qauv hauv tshuaj lom neeg. Hauv lwm cov lus, 100 feem pua ​​biobased plastics tuaj yeem tsis yog-biodegradable, thiab 100 feem pua ​​fossil raws plastics tuaj yeem biodegrade.

Cov txiaj ntsig ntawm bioplastics

Bioplastics yog tsav tsheb kev hloov kho ntawm plastics. Muaj ob qhov zoo ntawm biobased yas khoom piv rau lawv cov qauv siv yooj yim: lawv txuag pob zeb los ntawm kev siv biomass uas tsim dua tshiab (txhua xyoo) thiab muab cov peev xwm tshwj xeeb ntawm cov pa roj carbon neutral. Txuas ntxiv mus, biodegradability yog qhov txuas ntxiv ntawm cov cuab yeej ntawm qee hom bioplastics. Nws muaj cov hauv kev ntxiv ntawm kev rov ua kom kawg ntawm qhov khoom lag luam lub neej.