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Pvc Wallboard - Pvc Introduction
May 28, 2018

Thermoplastic resin made of vinyl chloride polymerized by an initiator. It is a homopolymer of vinyl chloride. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is an amorphous white powder with a low degree of branching, but poor stability to light and heat. At temperatures above 100°C or exposure to sunlight for long periods of time, it will decompose to produce hydrogen chloride, and further autocatalytic decomposition, causing discoloration. Physical and mechanical properties are also rapidly declining. In practice, stabilizers must be added to improve heat and light stability. PVC is very hard and has poor solubility. It is used for dry spinning or wet spinning and is called Kleenex. It is flame-retardant, acid and alkali resistant, anti-microbial, abrasion-resistant and has good warmth and elasticity.