Tsis ntev los no, cov hnab yas biodegradable tau nrov heev, thiab ntau theem ntawm cov yas txwv tau raug tsim tawm thoob plaws ntiaj teb, thiab yog ib hom tseem ceeb ntawm cov hnab yas biodegradable, PLA yog ib qho tseem ceeb tshaj plaws. Cia; ua tib zoo ua raws li cov neeg tsim khoom ntim cov hnab ntim khoom TOP PACK kom nkag siab txog PLA biodegradable hnab yas.
- PLA yog dab tsi thiab nws yog dab tsi?
PLA yog ib qho polymer (polylactic acid) tsim los ntawm me me lactic acid units. Lactic acid yog cov organic acid uas ua lub luag haujlwm tseem ceeb hauv peb lub neej txhua hnub. Cov yogurt peb feem ntau haus los yog ib yam dab tsi nrog qabzib tuaj yeem hloov mus ua lactic acid, thiab lactic acid ntawm PLA consumables los ntawm pob kws, ua los ntawm raw khoom ntawm starch rho tawm los ntawm pob kws.
Tam sim no, PLA yog ib qho ntawm cov khoom siv feem ntau siv hauv cov hnab yas biodegradable, muaj qhov tshwj xeeb: PLA yog ib qho ntawm cov khoom siv biodegradable uas tsis muaj tshuaj lom, nws cov khoom siv raw los ntawm qhov xwm txheej.
- Tus nqi ntawm PLA degradation nyob li cas?
Cov txheej txheem biodegradation thiab nws lub sijhawm yog nyob ntawm qhov chaw. Piv txwv li, cua sov, av noo, thiab microbes Burying PLA tag nrho cov hnab yas degradable sib sib zog nqus hauv av tuaj yeem ua rau pom kev lwj hauv rau lub hlis.
Thiab PLA biodegradable hnab yas siv sijhawm ntev dua kom degrade ntawm chav tsev kub thiab nyob rau hauv siab. Hauv chav zoo tib yam, PLA biodegradable hnab yas degradation yuav kav ntev. Lub hnub ci yuav tsis ua kom biodegradation (tshwj tsis yog cov cua sov), thiab UV teeb yuav tsuas ua rau cov khoom poob nws cov xim thiab ua daj ntseg, uas yog tib yam li feem ntau cov yas.
Cov txiaj ntsig ntawm kev siv PLA biodegradable hnab yas
Hauv keeb kwm ntawm noob neej, hnab yas yog yooj yim heev thiab siv tau zoo, ua rau tib neeg tau sib cais los ntawm cov hnab yas hauv lawv lub neej txhua hnub. Qhov yooj yim ntawm cov hnab yas ua rau tib neeg tsis nco qab tias qhov kev tsim khoom qub ntawm cov hnab yas tsis yog cov khoom siv pov tseg, feem ntau siv ib zaug thiab pov tseg. Tab sis ntau tus neeg tsis paub tias cov khoom siv tseem ceeb rau kev tsim cov hnab yas yog polyethylene, uas nyuaj heev rau degrade. Ntau lub hnab yas pov tseg tau muab faus rau hauv av, uas yuav ua rau thaj av loj vim tias cov hnab yas faus thiab ua haujlwm ntev. Qhov no yog dawb paug. Thaum tib neeg siv cov hnab yas rau cov hnab yas biodegradable, qhov teeb meem no yuav daws tau. PLA yog ib qho ntawm feem ntau biodegradable plastics thiab yog ib qho polymer ua los ntawm lactic acid, uas yog cov khoom tsis muaj kuab lom thiab biodegradable. Tom qab siv, PLA tuaj yeem ua kom sib xyaw thiab degraded rau carbon dioxide thiab dej ntawm qhov kub siab tshaj 55 ° C los yog los ntawm kev ua ntawm cov kab mob uas muaj pa oxygen kom ua tiav cov khoom siv hauv qhov xwm txheej. Piv rau cov thawj d ntawm cov hnab yas zoo tib yam, cov hnab yas biodegradable tsuas yog xav tau ob peb lub hlis los ua kom tiav cov degradation ntawm lub sijhawm. Qhov no alleviates cov khoom pov tseg ntawm av mus rau ntau dua thiab tsis muaj kev cuam tshuam rau ib puag ncig. Tsis tas li ntawd, cov hnab yas zoo tib yam hauv cov txheej txheem tsim khoom yuav siv cov fossil fuels, thaum cov hnab yas biodegradable yuav txo tau yuav luag ib nrab ntawm cov fossil fuels dua li nws. Piv txwv li, yog tias tag nrho cov khoom yas hauv ntiaj teb tau hloov los ntawm cov hnab yas biodegradable hauv ib xyoos, nws yuav txuag tau yuav luag 1.3 billion barrels ntawm fossil fuels hauv ib xyoos, uas yog yuav luag ib feem ntawm lub ntiaj teb fossil roj noj. Qhov tsis zoo ntawm PLA yog qhov hnyav degradation. Txawm li cas los xij, vim tus nqi qis ntawm PLA hauv cov khoom siv hnab yas biodegradable, PLA noj yog nyob rau hauv pem hauv ntej.
Post lub sij hawm: Mar-17-2023