PVC tuaj yeem muab faib ua ob yam khoom: tawv PVC thiab mos PVC. Lub npe tshawb fawb ntawm PVC yog polyvinyl chloride, uas yog cov khoom tseem ceeb ntawm cov yas thiab feem ntau siv los ua cov khoom yas. Nws yog pheej yig thiab dav siv. Hard PVC nyiaj rau kwv yees li ob feem peb ntawm kev ua lag luam, thaum muag PVC nyiaj rau ib feem peb. Yog li, qhov sib txawv ntawm cov mos PVC thiab tawv PVC yog dab tsi?
- Sib txawv degrees ntawm softness thiab hardness
Qhov sib txawv loj tshaj plaws nyob rau hauv lawv qhov sib txawv hardness. Hard PVC tsis muaj softeners, muaj qhov yooj yooj yim, yooj yim rau kev tsim, thiab tsis yooj yim nkig, tsis muaj tshuaj lom thiab tsis muaj kuab paug, muaj lub sijhawm cia ntev, thiab muaj kev txhim kho zoo thiab daim ntawv thov. Mos PVC, ntawm qhov tod tes, muaj cov softeners nrog zoo softness, tab sis nws yog nquag mus rau brittleness thiab nyuaj nyob rau hauv preservation, yog li nws cov kev siv yog txwv.
- Covdaim ntawv thov ntau yamtxawv
Vim nws txoj kev yooj yim zoo, mos PVC feem ntau yog siv rau saum npoo ntawm cov ntaub pua rooj, hauv pem teb, qab nthab, thiab tawv; Hard polyvinyl chloride feem ntau yog siv hauv cov kav dej PVC tawv, fittings, thiab profiles.
3. Covyam ntxwvtxawv
Los ntawm qhov kev xav ntawm cov yam ntxwv, mos PVC muaj cov kab stretching zoo, tuaj yeem txuas ntxiv, thiab muaj kev tiv thaiv zoo rau qhov kub thiab txias. Yog li ntawd, nws tseem tuaj yeem siv los ua cov ntaub pua rooj pob tshab. Kev siv kub ntawm PVC tawv feem ntau tsis tshaj 40 degrees, thiab yog tias qhov kub thiab txias siab dhau lawm, cov khoom siv PVC tawv yuav raug puas tsuaj.
4. Covkhoomtxawv
Qhov ceev ntawm mos PVC yog 1.16-1.35g / cm³, Cov dej nqus dej yog 0.15 ~ 0.75%, iav hloov pauv kub yog 75 ~ 105 ℃, thiab molding shrinkage tus nqi yog 10 ~ 50 × 10- ³cm/cm. Hard PVC feem ntau muaj ib txoj kab uas hla ntawm 40-100mm, du sab hauv phab ntsa uas tsis muaj zog, tsis muaj scaling, non-toxic, tsis muaj kuab paug, thiab corrosion-resistant zog. Kev siv kub tsis siab tshaj 40 degrees, yog li nws yog cov kav dej txias. Zoo aging kuj thiab nplaim retardant.
Post lub sij hawm: Lub Xya hli ntuj-10-2023
