Vim li cas PVC Plasticizer Precipitate? Koj yuav tsum tsis txhob xav txog qhov muaj feem cuam tshuam!
Jun 03, 2021
PVC cov khoom yog inseparable ntawm peb lub neej txhua hnub, vim hais tias ntawm lawv cov nqi qis thiab ruaj khov kev ua tau zoo, muaj zog plasticity, lawv siv nyob rau hauv tag nrho cov mus rau lub neej. Tab sis txhua leej txhua tus yuav pom tias cov khoom yas yuav muaj qee qhov kev hloov pauv hauv qee qhov xwm txheej, qee zaum ua nplaum, qee zaum tawv, qhov no yog dab tsi?
Qhov tseeb, tag nrho cov no muaj feem xyuam nrog PVC plasticizers. Txhua leej txhua tus paub tias nyob rau hauv cov txheej txheem ntawm PVC, ib tug tej yam plasticizer yog ntxiv los hloov nws cov kev ua tau zoo, thiab nws yog zoo li tus zoo li. Yog hais tias lub plasticizer yog precipitated, yuav tsis cov khoom yas rov qab mus rau lawv cov qub tsos?
Yog li ntawd, nyob rau hauv dab tsi tshwm sim yuav cov plasticizer yuav precipitated?
Kub kub
Plasticizers yooj yim dua rau precipitate ntawm qhov kub thiab txias. Ntau cov khoom siv PVC yuav tso tawm qhov tsis hnov tsw ntawm qhov kub thiab txias, thiab txawm tias deform, uas cuam tshuam rau nag lossis daus ntawm plasticizers. Plasticizers muaj txiaj ntsig zoo rau peb kev noj qab haus huv. Yog li ntawd, peb sim tsis txhob siv cov khoom siv PVC los tuav cov khoom kub los tiv thaiv cov yas yas los ntawm kev sib cais.
Sijhawm
Ib zaug, ib tug ntxhais tau mob qog noj ntshav tom qab haus dej los ntawm lub raj mis yas rau 16 xyoo. Uas yog hais tias, qhov poob ntawm plasticizer tsis yog tsuas yog ze ze rau qhov kub thiab txias, tab sis kuj yog ib qho tseem ceeb ntawm lub sij hawm, ib yam li lub raj mis PVC yuav tawv, nws yuav yog vim cov dej boiled, los yog nws yuav siv sij hawm ntev.
Qhov txiaj ntsig ncaj qha ntawm qhov poob ntawm PVC plasticizer yog tias cov yas ua nkig. Txawm hais tias nws yog vim qhov kub thiab txias los yog lub sijhawm ntev, peb yuav pom tseeb tias qhov hloov pauv ntawm PVC cov khoom raug txo qis heev, lub ntsej muag gloss ploj, thiab nws tsis muaj kev ua haujlwm elastic txhua. Lub raj mis PVC yog qhuav thiab tawv thaum tuav hauv tes. Qhov no yog PVC plasticizer. Qhov cuam tshuam rau cov khoom tom qab tso tawm.