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Description
PVC heat stabilizers are essential additives added during the processing of polyvinyl chloride, mainly used to prevent PVC from degrading under heat processing conditions. PVC has the problem of poor heat stability, and its processing temperature is higher than the decomposition temperature. Therefore, heat stabilizers must be relied upon to ensure the processing and molding [1]. According to their chemical composition, they can be mainly classified into lead salt stabilizers, calcium-zinc stabilizers, and organic tin stabilizers, etc.
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