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[Chemical Knowledge]：The nature and use of PP powder

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The nature and use
of PP powder in the field of chemical production raw materials
1. Introduction

PP powder as a common chemical production raw materials, widely used in plastics, fibers, coatings, adhesives and other fields. This paper will introduce the properties of PP powder, preparation methods and its application in various fields.

2. PP powder properties

PP powder is mainly composed of polypropylene resin, with the following properties:

1. good thermal stability, can be used at higher temperatures.

2. It has good electrical insulation properties and can be used as insulation materials for wires and cables.

3. Strong chemical resistance, can be used in contact with various chemical substances.

4. Excellent mechanical properties, with high strength, high toughness and other characteristics. The preparation method of

3. PP powder The preparation method of

PP powder has many kinds, the common method includes:

1. Suspension polymerization method: propylene monomer is polymerized in dispersant and water medium to generate polypropylene particles.

2. solution polymerization method: propylene monomer is dissolved in a solvent for polymerization to generate a polypropylene solution, and then PP powder is obtained through precipitation, drying and other processes.

3. Gas Phase Polymerization Method: A propylene monomer is polymerized in a gas phase to produce a polypropylene powder.

4. PP powder application

1. plastic field: PP powder can be used in the production of various plastic products, such as pipes, plates, films, containers, etc. Because of its good thermal stability and excellent mechanical properties, PP plastic products have a wide range of applications.

2. Fiber field: PP powder can be used to produce polypropylene fiber, also known as polypropylene fiber. Polypropylene fiber has the characteristics of light, soft and wear-resistant, and is widely used in clothing, industrial textiles and other fields.

3. coating field: PP powder can be used as one of the basic materials of coatings, mixed with other pigments, additives, etc. to make various coatings. Because of its strong chemical resistance and good electrical insulation properties, PP coatings have a wide range of applications, such as coating of chemical equipment, pipelines, and electrical products.

4. Adhesive field: PP powder can be used as one of the basic materials of adhesive, mixed with other additives, solvents, etc. to make various adhesives. Because of its strong chemical resistance and excellent mechanical properties, PP adhesive has a wide range of applications, such as automobile, construction, footwear and other industries.

5. conclusion

PP powder as a common chemical production raw material, with good thermal stability, excellent electrical insulation performance, strong chemical corrosion resistance, excellent mechanical properties and other characteristics, widely used in plastics, fibers, coatings, adhesives and other fields. With the continuous development of science and technology, the application field of PP powder will continue to expand.

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