GG quot; Mf" xov xwm tsis ntev los no luam tawm ib tsab xov xwm uas cov kws tshawb fawb tau tsim"" ntsuab; tableware ua los ntawm bagasse thiab xyoob. Cov tableware no tsis" kev txi" kev yooj yim thiab kev ua haujlwm, thiab tuaj yeem siv los hloov cov khob yas thiab lwm cov thawv ntim khoom pov tseg.
Tsoos plooj (lossis biodegradable polymers) muaj lub sijhawm tsis xeb txog li 450 xyoo (lossis xav tau kub siab), thiab cov khoom siv no tsis muaj kuab lom, ib puag ncig zoo tuaj yeem ua rau tsis pub dhau 60 hnub xwb.
Hauv txoj kev tshawb nrhiav tshiab, Hongli Zhu, tus kws tshawb fawb los ntawm Northeastern University hauv Tebchaws Asmeskas, nws tau tig mus saib xyoob thiab lub hnab ntim khoom noj (ib qho ntawm" cov txiaj ntsig zoo" khib nyiab hauv kev lag luam khoom noj). Qhov ntev thiab nyias xyoob ua npuas thiab cov luv thiab tuab bagasse fibers yog entangled ua ke los tsim cov qauv network nruj.
Cov ntaub ntim khoom ua los ntawm ob hom khoom siv ua fiber ntau no tsis yog tsuas yog muaj zog thiab ruaj khov zoo li cov yas, tab sis kuj tseem huv dua li cov khoom siv biodegradable ua cov khoom siv rov ua dua tshiab uas tsis tuaj yeem quav. Nws yuav pib ua rau lub siab lwj thaum muab tso rau hauv av rau 30 txog 45 hnub, thiab yuav yaj tag tom qab 60 hnub.
GG quot; Ua rau cov thawv ntim khoom noj yog qhov nyuaj heev. Biodegradability tsis yog qhov ntsuas tsuas yog." Zhu tau hais," Ntawm ib sab tes, peb yuav tsum ua kom muaj kev nyab xeeb ntawm zaub mov ntawm cov khoom, ntawm qhov tod tes, cov khoom kuj tseem xav tau kom muaj lub zog ntub dej zoo thiab ntxuav kom huv. Nws tsuas yog siv tau los tuav cov dej kub thiab zaub mov kub yog tias nws ua tau raws li cov xwm txheej no."
Kev txiav txim siab degradable khob (0 ~ 60 hnub)
Cov kws tshawb nrhiav ntxiv alkyl ketene dimer (AKD) rau cov kab tshiab. AKD yog cov khoom siv rau kev tiv thaiv ib puag ncig uas siv dav hauv kev lag luam khoom noj khoom haus. Nws tuaj yeem tsis tsuas txhim kho cov roj tsis kam thiab dej tsis kam ntawm cov khoom, tab sis kuj xyuas kom muaj kev ruaj khov ntawm cov khoom hauv cov huab cua noo.
Cov kws tshawb nrhiav tau pom tias tom qab ntxiv AKD, lub tshuab ua kom lub zog, cov roj tsis kam thiab tsis muaj tshuaj lom ntawm xyoob-bagasse tableware tau zoo dua li kev ua lag luam tsis zoo rau cov ntim zaub mov. Ntxiv mus, lub tableware tshiab muaj lwm qhov zoo tseem ceeb: me dua hneev roj carbon me me. Cov pa roj carbon dioxide tawm thaum tsim cov txheej txheem kev lag luam yog 97% tsawg dua cov thawv ntim khoom lag luam thiab 65% tsawg dua cov khoom lag luam ntawv thiab plastics biodegradable.
Cov kws tshawb fawb' lub hom phiaj tom ntej yog txhawm rau txhim kho lub zog ntawm kev tsim cov khoom lag luam thiab ntxiv txo tus nqi-txawm hais tias tus nqi tsim khob nrog cov ntaub ntawv tshiab (2333 USD / tuj) tsuas yog ib nrab ntawm cov yas biodegradable (4750 USD / tuj) ib qho, tab sis tseem me dua ntau dua li lub khob yas tsoos (2177 Asmeskas las / tuj).
GG quot; Nws yog qhov nyuaj rau txwv tsis pub cov neeg los ntawm kev siv cov khoom siv rooj ua ke vim tias nws pheej yig heev thiab yooj yim." Zhu tau hais tias," Tab sis kuv ntseeg tias kev ua cov khoom lag luam no nrog cov khoom siv biodegradable ruaj khov yog ib qho ntawm cov kev daws teeb meem zoo dua."
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