Nyob rau hauv xyoo tas los no, nrog kev loj hlob sai ntawm kev lag luam, tib neeg txoj kev nrhiav cov khoom siv thiab sab ntsuj plig tau nce siab dua, cov khoom ntim khoom muaj cov kev xav tau ntau dua, thaum tib neeg yuav cov khoom, tsis tsuas yog saib qhov zoo nkauj ntawm lub ntim, tab sis kuj xav txog ib qho kev xav tau ntau dua. ntau yam ntawm lwm yam haujlwm.Nws yog vim muaj kev txhim kho tas mus li ntawm tib neeg txoj kev nrhiav cov khoom ntim khoom, ntau cov khoom ntim tshiab txuas ntxiv mus rau kev ntim khoom.
Vim li cas peb tsim cov ntaub ntawv biodegradable
Synthetic polymer cov ntaub ntawv muaj qhov zoo ntawm lub teeb yuag, siab zog, zoo tshuaj stability thiab tsis tshua muaj nqi, nrog steel, ntoo, cement tau ua plaub tug ncej ntawm lub teb chaws kev lag luam, yog dav siv nyob rau hauv cov khoom ntim.Txawm li cas los xij, cov pov tseg ntau tom qab nws siv tau nce zuj zus nyob rau ib hnub, dhau los ua qhov chaw dawb huv, ua rau muaj kev puas tsuaj loj rau ib puag ncig, ua rau dej thiab av ua paug, ua rau tib neeg muaj sia nyob thiab noj qab haus huv, rau tib neeg txoj sia nyob ib puag ncig ua rau muaj kev tsis zoo. cuam tshuam tsis tuaj yeem tsis quav ntsej.
Tsis tas li ntawd, kev tsim cov khoom siv hluav taws xob hluavtaws - cov khoom siv roj av ib txwm muaj tag nrho ib hnub, yog li nws tseem ceeb heev kom nrhiav tau cov ntaub ntawv tshiab rau ib puag ncig, kev tsim cov khoom siv tsis yog roj av, thiab cov khoom siv biodegradable yog ib txoj hauv kev zoo. daws qhov teeb meem no.
Txhais cov ntaub ntawv biodegradable
Biodegradable cov ntaub ntawv, tseem hu ua "cov ntaub ntawv ntsuab ecological", xa mus rau cov ntaub ntawv uas tuaj yeem degrade nyob rau hauv qhov kev txiav txim ntawm cov av microorganisms thiab enzymes.Tshwj xeeb, nws txhais tau hais tias nyob rau hauv qee qhov xwm txheej, nws tuaj yeem ua rau biodegradation ntawm cov ntaub ntawv polymer raws li kev ua ntawm cov kab mob, pwm, algae thiab lwm yam kab mob ntuj.
Zoo tagnrho degradation mechanism
Cov khoom siv biodegradable zoo tagnrho yog cov khoom siv polymer nrog kev ua haujlwm zoo, uas tuaj yeem ua tiav los ntawm ib puag ncig cov kab mob tom qab pov tseg, thiab thaum kawg hloov mus rau CO2 thiab H2O, uas dhau los ua ib feem ntawm cov pa roj carbon monoxide.
Post lub sij hawm: Mar-19-2023