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[Chemical Knowledge]：Properties and uses of polypropylene

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Polypropylene (Polypropylene, referred to as PP) is a thermoplastic widely used in the field of chemical production. It has many excellent properties and a wide range of uses, so it is favored in the field of chemical production raw materials. This article will detail the properties and uses of polypropylene.

1. the properties of polypropylene

1. Physical properties

polypropylene is a colorless, odorless, non-toxic plastic material with high density and hardness. It has good wear resistance, impact resistance, chemical resistance and insulation. In addition, polypropylene has excellent thermal stability and can be used at high temperatures.

2. chemical properties

polypropylene has good chemical resistance, can resist the corrosion of acid, alkali, salt and other chemical substances. However, it is less resistant to oxidants and some organic solvents.

3. processing properties

polypropylene has good processing properties, can be made into various shapes of products by injection molding, extrusion, blow molding and other processing technology. In addition, polypropylene has good recycling properties and can be recycled.

2. polypropylene use

1. Packaging material

polypropylene is widely used as packaging materials, such as plastic bags, packaging boxes, bottles and so on. It has excellent chemical resistance and insulation, which can ensure the quality and safety of the contents.

2. Building materials

Polypropylene can be used as building materials, such as pipes, plates, doors and windows, etc. It has excellent wear resistance and impact resistance, which can ensure the service life and safety of the building.

3. Auto parts

Polypropylene can be used to manufacture auto parts, such as bumpers, seats, dashboards, etc. It has lighter weight and good processing performance, which can reduce automobile manufacturing costs and improve production efficiency.

4. electrical products

polypropylene can be used in the manufacture of electrical products, such as wire and cable, switch socket and so on. It has excellent insulation and heat resistance, which can ensure the safety and reliability of electrical products.

In short, as an excellent raw material for the production of chemical products, polypropylene has been widely used in various fields.

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