Daim ntawv thov ntawm degradable plastics hauv cov khoom hluav taws xob txhaj tshuaj

1, Txheej txheem cej luam ntawm biodegradable plastics
Degradable plastics xa mus rau plastics uas tuaj yeem ua rau ib puag ncig ntawm cov kab mob me, xws li av, dej hiav txwv, dej hiav txwv, thiab lwm thaj chaw ntuj. Raws li txoj kev ua tsis tau yooj yim, biodegradable plastics tuaj yeem faib ua plaub pawg, cov duab teeb meem, cov duab digradable plastics, thiab dej degradable plastics. Ntawm lawv, biodegradable plastics tau dhau los ua kev tshawb fawb txog kev tshawb fawb tam sim no thiab thov kom lawv muaj peev xwm ua tiav los ntawm cov microorganisms nyob hauv ib puag ncig ntuj.
Biodegradable plastics tuaj yeem faib ua biobased biodegradable plastics thiab roj av raws li cov ntaub ntawv uas lawv cov khoom siv raw. Biobased biodegradable plastics yog tsim los ntawm raw tshuaj, pha (polyhydroxyates), uas tuaj yeem txo cov khoom siv hluav taws xob ib txwm xws li roj av. Roj av raws biodegradable plastics yog tsim kev siv cov pob txha roj ua cov ntaub ntawv raw, xws li PBS (PBAT (Terephthalate), thiab lwm yam.
2, Daim ntawv thov tam sim no ntawm biodegradable plastics hauv kev txhaj tshuaj molding ntawm cov khoom siv hluav taws xob
Tam sim no, daim ntawv thov ntawm biodegradable plastics hauv cov khoom siv hluav taws xob kev txhaj tshuaj moulding yog tseem nyob rau hauv nws tus menyuam mos liab. Txawm li cas los xij, nrog cov kev cai nruj ib puag ncig thiab kev txhawb nqa hluav taws xob ib puag ncig, ntau thiab ntau dua cov khoom lag luam hluav taws xob tau them thiab sim siv biodegradable plastics.
Hauv cov khoom siv hluav taws xob, txhaj tshuaj moulded yog qhov tseem ceeb. Txawm hais tias kev txhaj tshuaj yas tsoos cov txiaj ntsig tau muaj qhov zoo ntawm cov nqi qis thiab yooj yim rau cov yam ntxwv ua kom nruj rau ib puag ncig thiab cov ecosystem. Yog li ntawd, siv biodegradable plastics rau kev txhaj tshuaj molding tau dhau los ua lwm txoj kev daws teeb meem.
PLA, raws li ib tug raug Bio raws biodegradable yas, muaj tej yam kev txhaj tshuaj uas tshuab hluav taws xob kev txhaj tshuaj molding vim nws lub siab hardness, pob tshab, thiab cov txheej txheem zoo. Piv txwv li, Pla tuaj yeem siv tau los tsim cov khoom siv xws li cov casings thiab cov nyees khawm rau cov khoom siv hluav taws xob. Tsis tas li ntawd, tshiab Bio raws biodegradable plastics xws li pho tau qhia dav thov kev pom molding vim lawv cov khoom siv lub cev zoo nkauj thiab biocompatibility.
3, qhov zoo ntawm biodegradable plastics hauv cov khoom siv hluav taws xob
Kev ua phooj ywg ib puag ncig: degradable plastics tuaj yeem decomposed los ntawm cov kab mob me thiab qhov kawg hloov pauv mus rau ib puag ncig, yog li txo cov pa phem rau ib puag ncig.
Kev Nyab Xeeb: biobased biodegradable plastics yog tsim los ntawm cov roj thiab yog nyob rau hauv kab thiab yog nyob rau hauv kab nrog lub tswv yim ntawm kev loj hlob ntawm kev loj hlob.
Kev ua tau zoo heev: qee qhov biodegradable plastics xws li PLA, Pha, thiab cov khoom siv ua tau zoo, uas tuaj yeem ua tau zoo ntawm cov khoom siv hluav taws xob.
Txo cov khoom pov tseg: kev txhaj tshuaj hluav taws xob ua los ntawm biodegradable plastics tuaj yeem ua rau denpade tom qab pov tseg rau cov av pov tseg thiab cov nroj tsuag tsis sib xws.
4, cov nyom sib tw
Txawm hais tias cov khoom siv hluav taws xob muaj ntau yam zoo hauv cov khoom siv hluav taws xob cov khoom moulding, lawv daim ntawv thov tseem ntsib qee qhov kev cov nyom:
Qhov teeb meem raug nqi: Tam sim no, kev tsim tau tus nqi ntawm biodegradable plastics yog tus nqi siab dua, ua rau cov khoom siv hluav taws xob ntau dua hauv cov khoom moulding. Qhov kev txwv no txwv qhov siv thoob plaws ntawm biodegradable plastics hauv cov khoom siv hluav taws xob.
Kev ua kev ua tau zoo: tseem muaj qee qhov sib txawv ntawm kev ua haujlwm ntawm qee qhov kev ua kom zoo, xws li cov txheej txheem hluav taws xob, thermal ruaj khov thiab hloov kho thaum lub sij hawm txhaj tshuaj ua haujlwm.
Kev ua raws li tus nqi: txawm hais tias cov txheej txheem uas tuaj yeem cuam tshuam los ntawm cov kab mob ib puag ncig, lawv cov xwm txheej tsis zoo xws li kub thiab cua sov, thiab hom microbial. Yog li ntawd, hauv kev siv cov ntawv thov, nws yog qhov tsim nyog kom paub meej txog cov xwm txheej no kom ntseeg tau tias qhov kev ua tau zoo ntawm biodegradable plastics ua tau raws li kev cia siab.