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[Chemical Knowledge]：Properties and Uses of Polyethylene Recycled Materials

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The nature and use
of polyethylene recycled materials
1. Introduction

polyethylene (Polyethylene, referred to as PE) is a common plastic material with excellent performance and a wide range of applications. In the field of chemical production raw materials, polyethylene recycled material is an important resource, through reasonable recycling, can realize the effective recycling of resources, improve economic and environmental benefits. This article will detail the nature and use of polyethylene recycled materials.

2. the properties of polyethylene recycled materials

1. physical properties: polyethylene recycled materials are usually white or slightly yellow particles or powder, with higher density and better mechanical properties. Its hardness, strength, toughness and other physical properties can be different according to the source of raw materials and regeneration process.
2. Chemical properties: Polyethylene recycled material has good chemical corrosion resistance, and has certain resistance to acid, alkali and other chemical reagents. However, under the action of high temperature, high pressure and some organic solvents, degradation or swelling may occur.

3. the use of polyethylene recycled materials

1. Manufacturing plastic products: Polyethylene recycled materials can be used to manufacture various plastic products, such as plastic bags, bottles, cans, pipes, plates, etc. These products have the advantages of light weight, easy processing and corrosion resistance, and are widely used in packaging, construction, agriculture, chemical industry and other fields.
2. Manufacturing plastic alloys: blending polyethylene recycled materials with other plastic or rubber materials can prepare plastic alloys with excellent properties. These alloy materials can improve the hardness, strength, heat resistance, cold resistance and other properties of polyethylene, and expand its application range.
3. Manufacturing composite materials: Polyethylene recycled materials can also be combined with glass fiber, carbon fiber and other reinforced materials to prepare composite materials with high strength and high modulus. These composite materials have a wide range of applications in aerospace, automotive, construction and other fields.

4. the production process of polyethylene recycled material
the production process of
polyethylene recycled material mainly includes the following steps:

1. Waste collection: collect all kinds of waste materials containing polyethylene components, such as waste plastic bags, bottles, pipes, etc.
2. Cleaning and classification: The collected waste is cleaned to remove oil and impurities, and classified according to the type and quality of the waste.
3. Crushing and plasticizing: The classified waste is broken into small pieces or powder, and then heated and melted by the plasticizing equipment to form a plastic polyethylene recycled material.
4. Extrusion granulation: The plasticized polyethylene recycled material is extruded into strips through an extruder, and then cut into pellets through water cooling and pelletizing machine to obtain polyethylene recycled material particles.

5. the application prospect of polyethylene recycled materials

With people's attention to resource recycling and environmental protection, the application prospect of polyethylene recycled materials is becoming more and more broad. In the future, with the continuous progress of technology and the expansion of application fields, polyethylene recycled materials will be applied in more fields, and play a greater role in realizing the sustainable use of resources and environmental protection.

6. conclusion

In conclusion, as an important raw material for chemical production, polyethylene recycled material has a wide range of uses and good application prospects. Through reasonable recycling, the effective recycling of resources can be realized, and the economic and environmental benefits can be improved.

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