What are the types of plastic auxiliaries

Plastic additives are compounds that must be added when the polymer (synthetic resin) is formed to improve its processing performance or to improve the performance of the resin itself. There are many kinds of plastic additives, mainly including the following categories: ‌

‌ Plasticizer ‌ : used to reduce the molding temperature of plastics, make products more soft. Plasticizer is a kind of additives with large quantity, output and consumption in plastic auxiliaries.

‌ Heat stabilizer ‌ : used for polyvinyl chloride and other plastics in the process of hot processing to prevent its decomposition and discoloration.

‌ Antioxidant ‌ : used to inhibit the thermal oxidation degradation of polymer resin and improve the service life of polymer.

‌ Light stabilizer ‌ : used to protect plastics from damage by ultraviolet rays and prevent their photodegradation.

‌ Flame retardant ‌ : used to improve the flame retardancy of plastic products, increase its safety.

‌ Blowing agent ‌ : used to prepare foam, make it has the characteristics of light weight, heat insulation, sound insulation, etc.

‌ Antistatic agent ‌ : used to reduce the accumulation of static electricity in plastic products and prevent static interference. 

‌ Mildew prevention agent ‌ : used to prevent plastic products from moldy deterioration.

‌ Colorants and brighteners ‌ : used to change the color and brightness of plastic products.

‌ Filler ‌ : used to reduce production costs while maintaining the properties of or plastic products.
 
‌ Coupling agent ‌ : used to improve the interface properties of synthetic resins and inorganic fillers or materials.
 
‌ Lubricants ‌ : used to improve the flow and release of plastics during processing.

‌ Release agent ‌ : used to facilitate the release of mold, reduce the surface defects of products.
 
These additives play a vital role in the molding and processing of plastics, which can significantly improve the performance and processability of plastic products, as well as the service performance and life of the final product.