Chlorinated Polyvinyl Chloride Encyclopedia
2020-12-17
Summary
Chlorinated polyvinyl chloride is produced by chlorination modification of polyvinyl chloride ( PVC ) resin, is a new type of engineering plastics.
The product is white or light yellow tasteless, odorless, non-toxic loose particles or powder. After chlorination of PVC resin, the irregularity of the molecular chain arrangement increases, the polarity increases, the solubility of the resin increases, the chemical stability increases, which improves the material's heat resistance and corrosion resistance to acids, alkalis, salts, oxidizers and other properties. Improve the mechanical properties of the resin's heat distortion temperature, chlorine content from 56.7% to 63-69%, Vicat softening temperature from 72-82 ℃ to 90-125 ℃, the maximum operating temperature of up to 110 ℃, the long-term use of the temperature is 95 ℃. Therefore, CPVC is a new type of engineering plastics with broad application prospects.
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