[Chemical Knowledge]：The nature and use of EPS

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EPS(Expandable Polystyrene, expandable polystyrene) is a widely used raw material for chemical production, which has many important properties and uses.

1. the properties of EPS

1. Lightweight and high strength: EPS has the characteristics of light weight and high strength, its density is usually between 0.01-0.03g/cm³, and the tensile strength can reach 1.5-3.0MPa.
2. Low thermal conductivity: EPS has extremely low thermal conductivity and is an excellent thermal insulation material that can effectively reduce heat transfer.
3. Corrosion resistance: EPS has good corrosion resistance and can resist the erosion of many chemical substances, including acid, alkali, salt, etc.
4. Easy processing: EPS is easy to process and form, and can be made into products of various shapes by injection molding, extrusion, blow molding and other processes.

2. the use of EPS

1. packaging materials: EPS is widely used as packaging materials, such as electronic products, household appliances, glass products, such as shock protection packaging, as well as food, medicine and other products of insulation packaging.
2. building insulation materials: EPS as an excellent thermal insulation material, is widely used in building walls, roofs, ground and other parts of the thermal insulation.
3. Mold manufacturing: EPS can be used to manufacture various molds, such as plastic molds, metal molds, etc. Due to its easy processing and low thermal conductivity, it can improve the service life of the mold and reduce production costs.
4. Buoyancy material: EPS has the characteristics of light weight and high buoyancy, and is widely used in the manufacture of life jackets, life buoys and other water life-saving equipment.

In short, EPS, as an important raw material for chemical production, has a wide range of applications and important economic value.

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