[Chemical Knowledge]：Nature and use of PP-H

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PP-H (polypropylene homopolymer) is an important raw material for chemical production, which is widely used in various industrial fields. This article will detail the nature and uses of PP-H.

1. PP-H properties

1. Physical properties
PP-H is a translucent, colorless, odorless, non-toxic thermoplastic with high density and hardness. It has excellent resistance to chemical corrosion, acid, alkali, salt and other chemical substances. In addition, the PP-H also has good electrical insulation and heat resistance.

2. mechanical properties
PP-H has high tensile strength, yield point and elastic modulus, but also has good impact resistance. However, it has poor creep resistance and is prone to deformation under long-term stress.

3. processing properties
PP-H has good processing properties, can be made into various shapes of products by injection molding, extrusion, blow molding and other processing methods. At the same time, it also has good welding performance and can be used to make connecting parts of various chemical equipment.

2. PP-H uses

1. chemical equipment
PP-H is widely used in the production of chemical equipment shell, pipes, valves, pumps and other components, because it has good chemical resistance and heat resistance, to meet the requirements of chemical equipment.

2. household appliances
PP-H can also be used for the production of household appliances shell, parts, etc., such as washing machines, refrigerators and so on. At the same time, it can also be used to make the insulation layer of wire and cable, which has good electrical insulation.

3. Automotive industry
PP-H can be used to make exterior parts such as car bumpers and fenders, as well as interior parts such as fuel tanks and fuel pipes. It has good impact resistance and processing performance, and can meet the requirements of the automotive industry.

4.
PP-H in the construction industry can also be used in the production of pipes, plates and other products in the construction industry. It has good chemical resistance and heat resistance, and can improve the quality and life of construction products.

In short, PP-H, as an important raw material for the production of chemical products, has a wide range of uses and excellent properties, and is of great significance for promoting the development of various industries and improving product quality.

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