Plasticizer is widely used in industrial production of polymer materials auxiliaries, also known as plasticizers. All substances added to polymer materials that increase polymer plasticity are called plasticizers. The use of plasticizer can improve the properties of polymer materials, reduce production costs and improve production efficiency. is a class of important chemical product additives, as additives are widely used in plastic products, concrete, marl, cement, gypsum, cosmetics and cleaning agents and other materials, especially in polyvinyl chloride plastic products, in order to increase plastic plasticity and improve the strength of plastics, phthalates need to be added, which can sometimes reach 50% of the product.

       The main plasticizer is compatible with the resin, its permeability is small and its volatility is low, which can improve the plasticizing efficiency. The main plasticizers commonly used are phthalates and phosphate esters. The secondary plasticizer is also called auxiliary plasticizer, and its main function is to use it with the main plasticizer to reduce the cost. The common secondary plasticizers are cold resistant and cyclic plasticizers such as aliphatic dicarboxylate.