PVC is a type of Polymer and Copolymer sharing the same construction. Polyvinyl chloride is a sort of plastics with endless usage cases which is one of the most valuable products in Petrochemical industry. Generally, because of low price and easily assembling, man-made PVC has been used in more than %50 of building constructions recently and it has been a good substitute for traditional building materials such as wood, cement, and clay in many areas. This polymer is fast made whose one of the main reasons is the variety of this polymer. PVC can be used either as a hard and tough plastic or can be mixed with conditioners in order to made flexible plastic. As an instance, due to flexibility and high resistance, PVC is used to make frequently used blood bags. The advantages of PVC are: good resistance to grease, oil, acids, and bases; good resistance to flame and water; proper electrical insulation properties; high quality in mixture with conditioners to make different types of plastics with different level of flexibility.
There are two types of PVC:
Hard PVC: If the PVC does not get mixed with conditioner or water, hard and tough plastic will be the result which is used in pipes, building joints, panels and external covers.
Soft PVC: This type of PVC can be used in various cases such as wallpapers, upholstery, sheet, film, pool lining, toys, hose, shower curtain, tablecloth, etc. Today, the world consumption rate of using of this polymer is 27.4 million tons which consists %16 of whole polymer used. It is predicted that this rate reaches 38.8 million tons in coming years.