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[Chemical Knowledge]：Properties and uses of PVC resins

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The nature and use
of PVC resin
1. Introduction

PVC(Polyvinyl Chloride) resin is a widely used raw material for the production of chemical products. Due to its unique nature and wide application, PVC resin has attracted much attention worldwide. This article will detail the properties and uses of PVC resins.

2. The nature of PVC resin

1. Physical properties: PVC resin is a white or light yellow powder or particles, the density is about 1.35-1.45g/cm³, has good electrical insulation properties, chemical corrosion resistance, good weather resistance, not easy to burn, high strength, good processing performance and other characteristics.
2. Chemical properties: PVC resin has high chemical stability and has good resistance to oxidants, reducing agents and strong acids, but it will degrade under high temperature and ultraviolet irradiation.

3. the use of pvc resin

1. construction industry: pvc resin in the construction industry has a wide range of applications, mainly used in the production of pipes, doors and windows, wall panels, roof materials, wire and cable. Because of its good weather resistance, not easy to burn, easy to process and other characteristics, PVC products are favored in the construction industry.
2. Electronics industry: PVC resin has good electrical insulation properties, so it is widely used in the production of wires and cables, insulation materials, electronic accessories, etc. in the electronics industry.
3. Packaging industry: PVC resin can be used to produce various packaging materials, such as packaging bags, packaging films, packaging boxes, etc. Due to its chemical resistance and non-combustion characteristics, PVC packaging materials are very popular in the market.
4. medical industry: PVC resin in the medical industry also has a wide range of applications, such as the production of medical equipment, medical supplies.

4. PVC resin production process

PVC resin production mainly adopts the method of suspension polymerization, vinyl chloride monomer as the main raw material, through the action of initiator, in the presence of dispersant and water, free radical polymerization reaction. The production process mainly includes batching, polymerization, monomer recovery, stripping, drying, screening, packaging and other processes.

5. PVC resin market prospects

With the continuous development of science and technology, PVC resin applications are also expanding. In the future, with the continuous improvement of people's requirements for environmental protection and safety, PVC resin will be applied in more fields. At the same time, with the continuous advancement of technology, the production process of PVC resin will also be continuously optimized to improve production efficiency, reduce costs, and further promote the development of the PVC resin market.

6. conclusion

PVC resin as an important raw material for chemical production has broad application prospects. Its unique properties and wide range of applications make PVC resins an important part of today's chemical market. In the future, with the continuous advancement of technology and the continuous expansion of application fields, the market prospect of PVC resin will be broader.

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