PVC ua npuas lub nkoj yog ib hom ntawm cov ntawv tsis muaj dej, hluav taws kub, cov kua qaub thiab alkali resistant, los tiv thaiv mite, lub cev nyhav, kev txuag hluav taws kub, lub rwb thaiv tsev thiab cov yeeb yam tsis haum. Nws yog dav siv nyob rau hauv sab nrauv phab ntsa kho kom zoo nkauj thiab ntau lub tsev pej xeem. Hauv qab no, Tuam Tshoj thiab lub Tebchaws Amelikas no qhia koj txog kev ua haujlwm ntawm PVC ua npuas dej.
1. Cov khoom vaj khoom tsev
PVC ua npuas lub rooj tsav tsheb muaj kev sib zog thiab kev kho khoom. Thiab nws vam meej nrog nce ntawm molecular qhov ceeb thawj, tab sis txo nrog qhov kev nce ntawm kub. Cov khoom kim heev ntawm PVC tsis ruaj zoo, thiab nws lub cev modules ncav cuag 1500-3000MPa. Cov mos mos muaj ib qho elasticity ntawm 1.5-15 MPa. Txawm li cas los, lub elongation ntawm so yog siab li 200% -450%. Qhov teeb meem ntawm PVC yog dav dav, qhov sib tsoo zoo li qub yog 0.4-0.5, thiab qhov sib tsoo ntawm qhov sib txuam yog 0.23.
2, hluav taws xob ua tau zoo
PVC ua npuas Board yog hom polymer nrog hluav taws xob zoo, tab sis nws cov hluav taws xob rwb thaiv tsev tsis zoo li PP thiab PE vim tias nws lub siab polarity. Dielectric tas li, dielectric poob tangent thiab ntim resistivity loj, thiab corona kuj tsis zoo, feem ntau haum rau nruab nrab thiab tsis tshua muaj hluav taws xob thiab cov ntaub ntawv tsawg zaus rwb thaiv tsev.
3, thermal kev ua tau zoo
Qhov cua sov-resistant stability ntawm PVC foamed Board yog heev txom nyem, thiab nws pib mus rau sib txawv ntawm 140 ° C, thiab melting kub yog 160 ° C. PVC muaj ib tug me coefficient ntawm linear expansion, yog nplaim retardant, thiab muaj ib qho oxidation Performance index txog li 45 lossis ntau dua.
