PVC Yas Board (tawv) Yog Cov Khoom Uas Nplaim Taws

Polyvinyl chloride (PVC) yog ib yam khoom siv thermoplastic. Yog tias muaj ntau qhov sib txawv ntawm cov yas, cov tshuaj tiv thaiv kab mob thiab cov muab tshuaj ntxiv rau cov mis thaum ua, nws tuaj yeem ua rau ntau yam khoom nyuaj lossis muag khoom. Yog li, cov khoom lag luam tau muab faib ua ob hom: nruj polyvinyl chloride thiab mos polyvinyl chloride. Muaj cov tshuaj chlorine nyob hauv polyvinyl chloride molecule (qhov no txawv ntawm polyethylene). Vim tias cov txiaj ntsig dipole ntawm C-Cl daim ntawv cog lus, qhov sib npaug, tawv thiab tawv ntawm polyvinyl chloride muaj ntau dua li polyethylene, thiab dielectric tsis tu ncua thiab dielectric poob ntau dua. siab. Txog thaum iav hloov pauv kub (80 ℃), cov khoom siv hluav taws xob tseem tsis muaj kev hloov pauv, uas ua pov thawj tias dipole ntawm polyvinyl chloride ruaj khov heev, tuaj yeem tiv taus cov kua qaub thiab alkali corrosion, thiab vim tias cov qauv muaj cov tshuaj chlorine ntau, nws muaj Cov nplaim hluav taws kub qeeb, tab sis thaum ntxiv cov yas yas ntxiv, nplaim hluav taws kub nyhiab yuav raug txo kom tsawg. Rigid polyvinyl chloride board muaj lub zog ruaj khov zoo, yog li nws tau siv dav hauv kev tsim cov khoom siv tshuaj lom neeg ntau yam, cov kav dej, ntim khoom, khoom siv thiab ntim cov khoom ntim khoom, thaum thauj thiab khaws cia cov pa roj thiab cov kua ua kua, tshwj xeeb tshaj yog rov qab los ntawm cov kua qaub thiab alkali yog siv los ua cov khoom tiv thaiv xeb hauv cov ntoo alkane kom ua tiav. Thiab vim tias nws muaj huab cua tiv taus zoo, nws feem ntau siv los ua cov khoom siv hauv tsev, suav nrog cov dej thiab cov kav dej phwj tuaj, cov kav dej pov tseg, cov hluav taws pov thawj lossis cov txheej txheem tiv thaiv hluav taws yooj yim, thiab tsim ntau yam khoom siv hauv pem teb thiab phab ntsa.

Rigid PVC board: grey, kaus ntxhw daj