Kev faib tawm thiab siv Pvc Zaj duab xis

Kev faib tawm

PVC zaj duab xis tuaj yeem muab faib ua PVC mos zaj duab xis thiab PVC tawv zaj duab xis. Ntawm lawv, nyuaj PVC nyiaj txog li 2/3 ntawm kev ua lag luam, thiab muag PVC nyiaj rau 1/3. Mos PVC feem ntau yog siv rau saum npoo ntawm cov plag tsev, qab nthab thiab tawv, tab sis vim hais tias mos PVC muaj cov softeners (qhov no kuj yog qhov txawv ntawm mos PVC thiab tawv PVC), nws yog ib qho yooj yim los ua nkig thiab nyuaj rau khaws cia, yog li nws cov peev txheej ntawm siv yog txwv. Hard PVC tsis muaj softeners, yog li nws muaj kev ywj pheej zoo, yooj yim rau kev tsim, tsis yooj yim rau nkig, tsis yog - lom thiab muaj kuab paug- dawb, thiab muaj lub sijhawm cia ntev, yog li nws muaj qhov zoo. kev txhim kho thiab kev siv tus nqi. Hauv qab no yog hu ua PVC.

siv

Cov ntsiab lus ntawm PVC yog lub tshuab nqus tsev hlwv zaj duab xis, uas yog siv rau lub ntim ntim ntawm ntau lub vaj huam sib luag, yog li nws tseem hu ua cov yeeb yaj kiab zoo nkauj thiab cov nplaum nplaum, thiab siv ntau yam lag luam xws li cov khoom siv hauv tsev, ntim khoom, thiab tshuaj. Ntawm lawv, kev lag luam khoom siv hauv tsev suav rau qhov loj tshaj plaws, suav txog 60 feem pua ​​​​, ua raws li kev lag luam ntim khoom, thiab ntau lwm yam me me - daim ntawv thov kev lag luam.