Yas yog ib qho ntawm cov pa phem loj tshaj plaws hauv ntiaj teb, thiab nws yuav siv sij hawm ntau pua xyoo kom degrade ib txwm muaj. Raws li kev tshaj tawm xov xwm txawv teb chaws, cov kws tshawb fawb ntawm Yale University Lub Tsev Kawm Ntawv ntawm Ib puag ncig thiab University of Maryland tau siv cov khoom siv ntoo los tsim cov khoom siv hluav taws xob ruaj khov thiab ruaj khov los daws ib qho teeb meem ntawm ib puag ncig hauv ntiaj teb.

Assistant xibfwb Yuan Yao ntawm Yale University Lub Tsev Kawm Ntawv ntawm Ib puag ncig thiab xibfwb Liangbing Hu ntawm University of Maryland Center for Materials Innovation thiab lwm tus tau koom tes hauv kev tshawb fawb los rhuav tshem cov porous matrix hauv cov ntoo ntuj rau hauv slurry. Cov kws tshawb fawb tau hais tias cov khoom siv biomass yas nthuav tawm cov tshuab muaj zog thiab ruaj khov thaum muaj cov kua dej, nrog rau UV tiv thaiv. Nws tseem tuaj yeem rov ua dua tshiab hauv ib puag ncig ntuj lossis nyab xeeb biodegraded. Piv nrog cov roj av-raws li plastics thiab lwm yam biodegradable plastics, nws lub neej voj voog ib puag ncig cuam tshuam me dua.

Yao tau hais tias: "Peb tau tsim cov txheej txheem tsim khoom yooj yim thiab ncaj ncees uas tuaj yeem siv ntoo los tsim cov yas bio-raws li thiab muaj cov khoom siv zoo."

Txhawm rau ua kom cov slurry sib tov, cov kws tshawb fawb tau siv cov chips ntoo ua cov khoom siv raw thiab siv biodegradable thiab recyclable sib sib zog nqus eutectic hnyav rau deconstruct lub xoob ntxeem tau qauv hauv cov hmoov. Nyob rau hauv qhov sib tov tau, vim yog nano-scale entanglement thiab hydrogen bonding ntawm cov regenerated lignin thiab cellulose micro / nano fiber, cov khoom muaj ib tug siab cov ntsiab lus thiab viscosity siab, thiab yuav cam khwb cia thiab dov yam tsis muaj cracking.

Cov kws tshawb fawb tom qab ntawd tau ua qhov kev ntsuam xyuas lub neej zoo los ntsuas qhov cuam tshuam ib puag ncig ntawm bioplastics thiab cov yas zoo tib yam. Cov txiaj ntsig tau pom tias thaum daim ntawv bioplastic tau faus rau hauv av, cov khoom tawg tom qab ob lub lis piam thiab tag nrho degraded tom qab peb lub hlis; Tsis tas li ntawd, cov kws tshawb fawb tau hais tias cov bioplastics kuj tuaj yeem tawg mus rau hauv slurry los ntawm kev sib tsoo tshuab. Yog li, DES tau rov qab thiab rov siv dua. Yao tau hais tias: "Qhov zoo ntawm cov yas no yog tias nws tuaj yeem rov ua dua tshiab lossis biodegraded. Peb tau txo cov khoom pov tseg uas ntws mus rau hauv ntuj."

Xib fwb Liangbing Hu tau hais tias qhov bioplastic no muaj ntau yam kev siv, piv txwv li, nws tuaj yeem raug molded rau hauv zaj duab xis rau siv hauv hnab yas thiab ntim khoom. Qhov no yog ib qho ntawm cov khoom siv tseem ceeb ntawm cov yas thiab ib qho ntawm qhov ua rau cov khib nyiab. Tsis tas li ntawd, cov kws tshawb fawb tau hais tias qhov bioplastic no tuaj yeem ua rau cov duab sib txawv, yog li nws tseem yuav tsum tau siv hauv kev tsim tsheb.

Pab neeg no tseem yuav tshawb nrhiav qhov cuam tshuam ntawm kev nthuav dav ntau lawm ntawm hav zoov, vim tias kev tsim khoom loj tuaj yeem xav tau kev siv ntoo ntau, uas yuav muaj kev cuam tshuam loj heev rau hav zoov, kev tswj hwm av, ecosystems, thiab kev hloov pauv huab cua. Pab neeg tshawb fawb tau ua haujlwm nrog cov kws tshawb fawb txog hav zoov los tsim cov qauv simulation hav zoov uas txuas lub voj voog kev loj hlob ntawm hav zoov mus rau cov txheej txheem tsim ntoo-yas.

Reprinted los ntawm Gasgoo