PVC yeeb nkab yog qhov tseem ceeb ntawm lub tshuab nqus tsev- tsim cov yeeb yaj kiab siv rau kev ntim khoom ntawm ntau lub vaj huam sib luag, yog li nws tseem hu ua cov yeeb yaj kiab zoo nkauj lossis cov nplaum nplaum. Nws yog siv rau hauv ntau lub lag luam, nrog rau cov khoom siv hauv tsev, ntim khoom, thiab tshuaj. Kev lag luam cov ntaub ntawv hauv tsev suav nrog qhov loj tshaj plaws ntawm 60%, ua raws li kev lag luam ntim khoom, nrog rau ob peb lwm cov ntawv me me.
Sij hawm dhau mus, cov kav dej PVC tso cov chloride ions, ua rau lawv tsis haum rau cov kav dej. Lawv kuj muaj kev cuam tshuam tsis zoo, ua rau lawv tsis haum rau cov kav dej. Txawm li cas los xij, cov kav dej PVC yog pheej yig, muaj kev nruj nruj, thiab nthuav dav thiab cog lus nrog kev hloov kub. Yog li ntawd, cov kav dej PVC tau muab faib ua ob hom: PVC cov kav dej thiab cov kav dej PVC, siv rau cov kav dej hauv nroog thiab cov kav dej, kev lag luam dej thiab cov kav dej, cov dej hauv pej xeem thiab cov kav dej, kev siv dej, thiab cov nroj tsuag watering.
