In addition to conventional PVC resin, there is also a type of chlorinated CPVC resin, which is a new type of engineering plastic. The molecular bond irregularity and polarity of CPVC resin increase, resulting in improved solubility, chemical stability, and heat resistance. The thermal deformation temperature, Vicat softening temperature, and maximum operating temperature of CPVC resin are higher than those of conventional PVC resin, so it has a wider application prospect.

The molecular structure of PVC resin endows it with excellent physical and chemical properties, making it widely used in industries, construction, agriculture, daily life, packaging, electricity, public utilities, and other fields. For example, in the field of construction, PVC resin is used as a building material, such as windows, electrical insulators, floors, and wall panels. In the field of packaging, PVC resin is used to manufacture packaging bags, containers, and labels. In addition, PVC resin is widely used in the production of cables, pipes, shoe materials, wire sheaths, and so on.