PVC yog dab tsi?
PVC yog qhov tseeb vinyl polymer, thiab nws cov khoom yog cov khoom siv amorphous. Hauv kev siv tswv yim, cov ntaub ntawv PVC feem ntau ntxiv cov stabilizers, lubricants, auxiliary processing agents, pigments, impact resistance agents and other additives. Nws muaj non-flammable, siab zog, huab cua tsis kam thiab zoo heev geometric stability. PVC muaj zog heev rau oxidizing cov neeg ua haujlwm, txo cov neeg ua haujlwm thiab muaj zog acids. Txawm li cas los xij, nws tuaj yeem corroded los ntawm concentrated oxidizing acids xws li concentrated sulfuric acid thiab concentrated nitric acid thiab tsis haum rau kev sib cuag nrog aromatic hydrocarbons thiab chlorinated hydrocarbons.
