PVC Parts

PVC is a white powder with an amorphous structure and a low branching degree. Its glass transition temperature is 77~90 ℃, and it begins to decompose at about 170 ℃. It has poor stability to light and heat. When it is above 100 ℃ or exposed to sunlight for a long time, it will decompose to produce hydrogen chloride, which further catalyzes decomposition, causing discoloration, and rapidly declining physical and mechanical properties. In practical applications, stabilizers must be added to improve stability to heat and light.

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