PVC material is polyvinyl chloride, which is one of the largest plastic products in the world. It is cheap and widely used. The polyvinyl chloride resin is white or light yellow powder. It cannot be used alone and must be modified. PVC is a white powder with an amorphous structure, which has a small degree of branching and poor stability to light and heat. Different additives can be added according to different purposes, and polyvinyl chloride plastic can exhibit different physical properties and mechanical properties. A variety of hard, soft and transparent articles can be made by adding an appropriate amount of plasticizer to the polyvinyl chloride resin.