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For the issue of severe shrinkage marks, the solution is similar to that for insufficient material. It is necessary to check whether the injection pressure is too low, whether the holding pressure time is sufficient, and whether the cooling time is appropriate. Appropriate adjustment of these parameters can significantly improve the quality of the finished product.

Although oxidized polyethylene wax and polyethylene wax sound similar, they have fundamental differences in chemical structure and properties. Simply put, oxidized polyethylene wax is a modified product obtained by oxidizing polyethylene wax.

Vulcanized rubber powder is made by crushing waste rubber through mechanical methods, freezing methods and other means. It is a powder material with rubber elasticity and can be used in the plastic industry. It can be mixed in any quantity in plastics and processed into rubber powder to toughen plastics with plastics as the base material. Polyvinyl chloride is one of them. In actual production, polyvinyl chloride toughened and modified with vulcanized rubber powder can be processed into various products through molding, laminating, calendering, injection molding, extrusion, etc. Tire rubber powder and nitrile rubber powder in vulcanized rubber powder are commonly used materials for PVC modification.