[Chemical Knowledge]：Properties and Uses of PE

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Polyethylene (Polyethylene, PE) is a widely used plastic material with excellent properties and diverse uses. In the field of chemical production raw materials, PE plays an important role, and its nature and use are discussed in detail below.

1. The properties of polyethylene

1. Physical properties
Polyethylene is a colorless, odorless, non-toxic plastic material with good water resistance, electrical insulation and low temperature resistance. Its density is usually between 0.915-970g/cm3, which is the lightest of plastics. The molecular structure of polyethylene makes it have high tensile strength, but low impact strength.

2. chemical properties
polyethylene has good corrosion resistance, can resist most of the acid, alkali, salt and organic solvent erosion. However, at high temperatures, polyethylene will be oxidized and decomposed.

2. the use of polyethylene

in the field of chemical production raw materials, the use of polyethylene is very extensive, the following lists some of the main uses:

1. packaging materials
polyethylene is widely used as packaging materials, such as plastic bags, packaging film, containers and so on. Due to its excellent water resistance, corrosion resistance and good processing properties, polyethylene has become an ideal packaging material.

2. Pipe material
Polyethylene can be used as conveying water pipes, gas pipes, chemical pipes, etc. Due to its good corrosion resistance, low temperature resistance and portability, polyethylene pipes have great competitiveness in the market.

3. Cable insulation material
polyethylene has good electrical insulation, so it is widely used as an insulation material for cables.

4. Building materials
Polyethylene can be used as building materials, such as door and window frames, floors, roofs, etc. Because of its corrosion resistance, portability and easy processing, polyethylene is also widely used in the construction industry.

In short, the nature and use of polyethylene in the field of chemical production raw materials is very extensive, which plays an important role in promoting the development of the chemical industry.

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