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Physical and chemical properties of PVC

he color is slightly yellow translucent and shiny. The transparency is better than that of polyethylene and polypropylene, and worse than that of polystyrene. It is divided into soft and rigid polyvinyl chloride, and the soft products are soft and tough, and the stickiness of the hand is higher than that of the low density polyethylene. Less than polypropylene, whitening occurs at the inflection point. Stable; not easy to be acid, alkali corrosion; more tolerant to heat.

Polyvinyl chloride has a flame retardant (flame retardant value of 40 or more), high chemical resistance (concentrated hydrochloric acid, sulfuric acid with a concentration of 90%, nitric acid with a concentration of 60%, and sodium hydroxide with a concentration of 20%), mechanical strength And good electrical insulation.