Cov khoom siv rwb thaiv tsev ua los ntawm roj hmab Kingflex NBR/PVC siv dav hauv ntau yam lag luam vim lawv cov khoom rwb thaiv tsev zoo heev thiab cov khoom rwb thaiv tsev suab. Ib qho kev txhawj xeeb loj tshaj plaws rau cov neeg siv khoom thiab cov lag luam yog seb cov khoom no puas tsis muaj CFC. Chlorofluorocarbons (CFCs) paub tias muaj kev cuam tshuam tsis zoo rau ib puag ncig, tshwj xeeb tshaj yog los ntawm kev ua rau cov txheej ozone puas tsuaj. Yog li ntawd, kev siv CFCs hauv ntau yam lag luam raug tswj hwm nruj thiab txo qis.
Zoo hmoo, feem ntau cov khoom siv rwb thaiv tsev NBR/PVC ua npuas ncauj muaj CFCs. Cov chaw tsim khoom tau lees paub qhov tseem ceeb ntawm kev tsim cov khoom siv rwb thaiv tsev uas zoo rau ib puag ncig thiab ruaj khov. Los ntawm kev tshem tawm CFCs ntawm lawv cov khoom, lawv tsis tsuas yog ua tau raws li cov kev cai lij choj xwb tab sis kuj pab txhawb rau kev siv zog thoob ntiaj teb los tiv thaiv ib puag ncig.
Kev hloov mus siv cov khoom siv rwb thaiv tsev uas tsis muaj CFC thiab NBR/PVC yog ib kauj ruam tseem ceeb rau kev lag luam. Nws tso cai rau cov lag luam thiab cov neeg siv khoom siv cov khoom no nrog kev ntseeg siab thiab paub tias lawv yuav tsis ua rau muaj kev puas tsuaj rau ib puag ncig. Tsis tas li ntawd, cov khoom siv rwb thaiv tsev uas tsis muaj CFC feem ntau yog thawj qhov kev xaiv rau cov haujlwm tsim vaj tsev ntsuab thiab cov neeg siv khoom uas paub txog ib puag ncig.
Ntxiv rau qhov tsis muaj CFC, cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev muaj ntau yam txiaj ntsig. Nws muab cov yam ntxwv zoo heev rau kev rwb thaiv tsev kub, pab txo kev siv hluav taws xob thiab txo cov nqi cua sov thiab txias. Cov khoom siv no tsis hnyav, yoog tau thiab yooj yim rau kev teeb tsa, ua rau nws yog qhov kev xaiv nrov rau ntau yam kev siv.
Tsis tas li ntawd xwb, cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev tiv taus cov dej noo, cov tshuaj lom neeg thiab cov hluav taws xob UV, ua kom ntseeg tau tias nws ruaj khov thiab siv tau ntev hauv ntau qhov chaw. Nws cov yam ntxwv nqus suab ua rau nws zoo tagnrho rau kev tswj suab nrov hauv cov tsev thiab cov tshuab.
Hauv kev xaus lus, feem ntau cov khoom siv rwb thaiv tsev NBR/PVC roj hmab tsis muaj CFC, ua raws li kev siv zog thoob ntiaj teb los tiv thaiv ib puag ncig. Qhov no ua rau lawv yog qhov kev xaiv zoo thiab ruaj khov rau cov kev xav tau rwb thaiv tsev ntawm ntau yam lag luam. Nrog cov khoom rwb thaiv tsev zoo heev thiab daim ntawv pov thawj ib puag ncig, cov khoom siv rwb thaiv tsev roj hmab NBR/PVC uas tsis muaj CFC yog cov kev daws teeb meem txhim khu kev qha thiab zoo rau ib puag ncig rau ntau yam kev siv.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2024
