Ntau tus neeg siv khoom tsis meej txog cov ntsiab lus ntawm kev tsis muaj tshuaj lom thiab kev tiv thaiv ib puag ncig ntawm PVC yas hoses, thiab xav tias tsis muaj tshuaj lom yog ib puag ncig zoo.Qhov tseeb, nws tsis yog li ntawd.Yuav kom nkag siab tob txog ob lub ntsiab lus no, peb yuav tsum xub paub qhov txawv ntawm cov khoom siv raw thiab siv cov kav dej.
Kev taw qhia ntawm PVC yas hose yog ua haujlwm rau cov pej xeem thiab siv nyob rau hauv tib neeg lub neej txhua hnub, tab sis nws tsuas yog txwv rau dej ntws hauv av, paj, lub vaj, cov khoom siv tshuab, sheaths, thiab lwm yam. Thaum pib, cov neeg ua haujlwm ntawm cov chaw tsim kho txawm siv rau xa dej.Los ntawm cov xwm txheej no, cov uas tuaj yeem sib cuag nrog tib neeg mus ntev yuav tsum tau txiav txim siab tias tsis muaj tshuaj lom lossis tsis muaj txiaj ntsig, tab sis qhov no tsuas yog txwv rau cov khoom qub.
Lub tswv yim ntawm kev tiv thaiv ib puag ncig yog qhov dav, tsuas yog nyem rau ntawm Baidu, ntawm no los tham txog lub tswv yim ntawm kev tiv thaiv ib puag ncig ntawm PVC yas hoses, uas txhais tau hais tias cov tshuaj precipitated tom qab degradation ntawm PVC hoses yuav tsis ua mob rau tib neeg lub cev.PVC yog polyethylene, uas yog resin hmoov.Cov khoom uas tsim cov tshuaj phem hauv lub hose yog los ntawm lwm cov khoom siv raw uas ua rau lub hose, butyl ester, chlorinated paraffin, (los yog octyl ester, p-benzene, TOTM).Ordinary hoses feem ntau yog ua los ntawm PVC, butyl ester, chlorine Nws yog tsim los ntawm paraffin wax thiab lwm yam excipients.Butyl ester thiab paraffin yuav tsis tshua precipitate benzene thaum kub qis dua 45 degrees Celsius, yog li nws muaj kev nyab xeeb thiab tsis muaj tshuaj lom.
Kev tiv thaiv ib puag ncig txhais tau hais tias PVC hoses uas tau dhau qhov kev tshuaj xyuas ntawm cov chaw tso cai tsis muaj phthalate nag lossis daus tuaj yeem siv rau cov kav dej haus thiab raug txiav txim siab rau ib puag ncig.Qhov kev xav tau no yog qhov nruj heev, thiab tsuas yog siv cov khoom siv raw li ib puag ncig.
Yog li ntawd, thaum xaiv ib lub hose, sim siv cov tsis muaj tshuaj lom los yog ib puag ncig zoo rau kev siv hauv tsev.Tus nqi tsuas yog tsis xis nyob thaum lub sijhawm them nyiaj, thiab nyob rau hauv tus txheej txheem ntawm kev siv cov khoom, muaj kev zoo siab nrog, thiab kev siv lub raj yog tsis muaj kev txhawj xeeb.
Post lub sij hawm: Sep-14-2022