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Physical and Chemical Properties
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The natural color is yellowish translucent with luster. The transparency is better than that of polyethylene and Polyphenylene, but worse than that of polystyrene. With the different amount of additives, it is divided into soft and hard polyvinyl chloride. Soft products are soft and tough, feel sticky, and the hardness of hard products is higher than that of low density polyethylene and lower than that of polypropylene, the phenomenon of whitening occurs in the bend.
relative density 1.4
soluble in solvents of ketones, esters and chlorinated hydrocarbons with low molecular weight. High molecular weight is difficult to dissolve.
with flame retardant (flame retardant value of 40 or more), high chemical resistance (strong resistance to hydrochloric acid, concentration of 90% sulfuric acid, 60% concentration of nitric acid and 20% concentration of sodium hydroxide), mechanical strength and electrical insulation advantages. However, the heat resistance was poor, and the softening point was 80 ° C., the decomposition and discoloration began at 130 ° C., and HCI was precipitated.
performance characteristics: This product is white powder, according to different purposes can be added to different additives, showing different physical and mechanical properties, mechanical properties, corrosion resistance, excellent dielectric properties and chemical resistance.
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Use
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Its products are used in light industry, building materials, agriculture, daily life, packaging, electricity, public utilities and other fields, widely used in construction, transportation, machinery, electronics, chemical, agriculture, food packaging and other fields.
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