Cov khob ntawv PE thiab PLA yog ob yam khoom siv khob ntawv uas siv ntau tam sim no hauv khw. Lawv muaj qhov sib txawv tseem ceeb hauv kev tiv thaiv ib puag ncig, kev siv rov qab tau thiab kev ruaj khov. Tsab xov xwm no yuav muab faib ua rau nqe lus los tham txog cov yam ntxwv thiab qhov sib txawv ntawm ob hom khob ntawv no los qhia lawv qhov cuam tshuam rau kev ruaj khov ib puag ncig.
PE (polyethylene) thiab PLA (polylactic acid) coated khob ntawv yog ob hom khob ntawv siv ntau. PE coated khob ntawv yog ua los ntawm cov yas PE ib txwm muaj, thaum PLA coated khob ntawv yog ua los ntawm cov nroj tsuag PLA uas rov ua dua tshiab. Tsab xov xwm no lub hom phiaj yog los sib piv qhov sib txawv hauv kev tiv thaiv ib puag ncig, kev siv rov qab thiab kev ruaj khov ntawm ob hom no.khob ntawvlos pab tib neeg xaiv tau zoo dua txog kev siv khob ntawv.
1. Kev sib piv ntawm kev tiv thaiv ib puag ncig. Hais txog kev tiv thaiv ib puag ncig, PLA coated khob ntawv zoo dua. PLA, ua bioplastic, yog ua los ntawm cov khoom siv cog qoob loo. Piv rau, PE coated khob ntawv xav tau cov peev txheej roj av ua cov khoom siv raw, uas muaj kev cuam tshuam ntau dua rau ib puag ncig. Kev siv PLA coated khob ntawv pab txo kev vam khom rau lub zog fossil thiab tiv thaiv ib puag ncig.
Kev sib piv ntawm kev siv rov qab tau. Hais txog kev siv rov qab tau,PLA coated khob ntawvkuj zoo dua li cov khob ntawv PE coated. Vim tias PLA yog cov khoom siv biodegradable, PLA khob ntawv tuaj yeem rov ua dua tshiab thiab rov ua dua tshiab rau hauv PLA khob ntawv tshiab lossis lwm yam khoom bioplastic. PE khob ntawv coated yuav tsum tau dhau los ntawm kev txheeb xyuas thiab ntxuav cov txheej txheem ua ntej lawv tuaj yeem rov siv dua. Yog li ntawd, PLA coated khob ntawv yooj yim dua rau kev rov ua dua tshiab thiab rov siv dua, raws li lub tswv yim ntawm kev lag luam ncig.
3. Kev sib piv txog kev ruaj khov. Thaum nws los txog rau kev ruaj khov, PLA coated khob ntawv dua ib zaug ntxiv muaj tes sab saud. Cov txheej txheem tsim khoom ntawm PLA siv cov peev txheej rov ua dua tshiab, xws li pob kws hmoov thiab lwm yam khoom siv cog, yog li nws muaj kev cuam tshuam tsawg dua rau ib puag ncig. Kev tsim khoom ntawm PE vam khom cov peev txheej roj av tsawg, uas muab kev nyuaj siab rau ib puag ncig. Tsis tas li ntawd, PLA coated khob ntawv tuaj yeem lwj mus rau hauv dej thiab carbon dioxide, ua rau muaj kuab paug tsawg dua rau cov av thiab dej, thiab muaj kev ruaj khov dua.
Cov kev xav txog kev siv tiag tiag. Los ntawm qhov kev xav ntawm kev siv tiag tiag, kuj muaj qee qhov sib txawv ntawm cov khob ntawv PE coated thiab cov khob ntawv PLA coated.Cov khob ntawv PE coatedmuaj kev tiv taus cua sov thiab txias zoo thiab tsim nyog rau kev ntim cov dej haus kub thiab txias. Txawm li cas los xij, cov khoom siv PLA muaj kev rhiab heev rau qhov kub thiab txias thiab tsis haum rau kev khaws cov kua kub siab, uas tuaj yeem ua rau lub khob mos thiab deform. Yog li ntawd, cov kev xav tau siv tshwj xeeb yuav tsum tau xav txog thaum xaiv cov khob ntawv.
Hauv kev xaus lus, muaj qhov sib txawv ntawm cov khob ntawv PE coated thiab cov khob ntawv PLA coated hais txog kev tiv thaiv ib puag ncig, kev siv rov qab thiab kev ruaj khov. Cov khob ntawv PLA coated muaj kev tiv thaiv ib puag ncig zoo dua,kev siv rov qab tau thiab kev ruaj khov, thiab tam sim no yog qhov kev xaiv zoo rau ib puag ncig. Txawm hais tias qhov kub thiab txias ntawm PLA coated khob ntawv tsis zoo li PE coated khob ntawv, nws cov txiaj ntsig ntau dua li qhov tsis zoo. Peb yuav tsum txhawb kom tib neeg siv PLA coated khob ntawv los txhawb kev txhim kho kom ruaj khov. Thaum xaiv cov khob ntawv, yuav tsum xav txog ntau yam raws li qhov xav tau tshwj xeeb, thiab kev sivcov khob ntawv uas zoo rau ib puag ncig thiab ruaj khovyuav tsum tau txais kev txhawb nqa zoo. Los ntawm kev ua haujlwm ua ke, peb tuaj yeem ua kom kev siv khob ntawv zoo dua qub, rov ua dua tshiab thiab ruaj khov dua.
Lub sijhawm tshaj tawm: Cuaj hlis-13-2023
