What additives are used in plastics?
Plastic additives according to their specific functions can be divided into seven categories: the additive to improve the processing performance, such as heat stabilizer and lubricant additives. The improved mechanical properties, such as plasticizer, toughening agent. The additives to improve the surface properties, such as antistatic agent, coupling agent and other additives to improve the optical performance., such as coloring. The Additives Improving the aging properties, such as antioxidant and light stabilizer. The lower the cost of plastic additives, such as extenders and filler. The effect of additives with other specific, such as foaming agent, flame retardant, preservatives and so on.
The main requirements for plastic additives are: high efficiency: can effectively play its functions in the plastics processing and application. The comprehensive performance requirements should be based on the selection of additives mixing. The compatibility with synthetic resin better compatibility. The persistence: volatile in plastics processing and application process no exudation, does not migrate, dissolution. The chemical stability: no decomposition in plastics processing and application process, and the synthetic resin and other components of chemical reaction. The non-toxic, without any toxic effects on the human body. The price is low.
Plastic compounding, a small amount added to the synthetic resin or its compound, with a class of chemicals to improve the processing performance of some products or gift. This kind of material is dispersed in the synthetic resin or the mixing, does not affect the molecular structure of synthetic resin.
