PVC STABILIZER enables polymer compounds to be used without structural changes in the presence of heat, light or oxygen, for example during processing, storage or use of the product. It is also possible to break chains or crosslinks and deteriorate properties. It is therefore necessary to add an appropriate Heat Stabiliser during processing so that the structure of the polymer compound is not damaged or its ring breakage is prolonged and the quality of the product is stabilised.
Polyvinyl chloride (PVC) has the advantages of good acid and alkali resistance, abrasion resistance, electrical insulation, non-flammable and self-extinguishing and low price, making it a very widely used thermoplastic. Despite its many advantages, PVC has a fatal disadvantage, namely its poor thermal stability. PVC usually starts to degrade when heated to 140°C, while its processing and moulding temperature is around 160-200°C. Therefore, Heat Stabilizer must be added to inhibit the degradation of PVC during processing and moulding.
Pvc Heat Stabilizer is mainly used for PVC and other polymers containing chlorine. If the PVC plastic contains small amounts of impurities such as lead salts, metal soaps, phenols, aromatic amines, etc., it does not affect its processing and application, but also serves to retard its thermal decomposition to a certain extent.
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