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[Chemical Knowledge]：Properties and Uses of Reclaimed Rubber

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The properties and uses of recycled rubber play an important role in the field of raw materials for chemical production. In this paper, the properties, preparation methods, application fields and future development prospects of recycled rubber will be discussed in detail.

1. the nature of recycled rubber

recycled rubber is a product of the use value of waste rubber products after crushing, desulfurization, grinding and other processes. Compared with virgin rubber, recycled rubber has some unique properties:

1. Physical properties: The color of recycled rubber is usually black, and its density, hardness, tensile strength, tear strength and other physical properties can be adjusted according to the production process., But the overall is slightly lower than virgin rubber.
2. Chemical properties: The recycled rubber retains most of the chemical components in the waste rubber, and has good chemical properties such as acid resistance, alkali resistance, and oil resistance.
3. Thermal stability: The thermal stability of recycled rubber is poor, and it is easy to age at high temperatures.

2. of recycled rubber preparation methods

of recycled rubber preparation methods are mainly the following:

1. Mechanical method: through mechanical force to break the waste rubber into a certain particle size of rubber powder, and then through desulfurization, plasticization and other processes, so that the rubber powder has the use value again.
2. Chemical method: the use of chemical reagents to deal with waste rubber, so that it is decomposed into smaller molecules, and then through the polymerization reaction to generate recycled rubber.
3. Physical and chemical method: Combined with the advantages of mechanical and chemical methods, the waste rubber is first broken into rubber powder, and then treated with chemical reagents to improve the quality of recycled rubber.

3. the application field of recycled rubber

recycled rubber has a wide range of applications in the field of chemical production raw materials, mainly including the following aspects:

1. tire production: recycled rubber can be used as tire tread, sidewall and other parts of the raw materials, improve tire wear resistance, cutting resistance and crack resistance.
2. Hose, tape production: recycled rubber can be used to make a variety of hoses, tape and other chemical products, with high elasticity and oil resistance.
3. Sole production: Recycled rubber can be used to make soles to improve the wear resistance and slip resistance of soles.
4. Other fields: Recycled rubber can also be used to make various rubber products, such as seals, shock absorbers, etc.

4. the development prospects of recycled rubber

With people's increasing attention to environmental protection and resource utilization, the development prospects of recycled rubber are very broad. In the future, the production technology of recycled rubber will continue to improve, the product quality will be more stable and reliable, and the application field will be further expanded. At the same time, with the continuous increase of waste rubber resources, the industrial scale of recycled rubber will continue to expand. Therefore, the important position of recycled rubber in the field of chemical production raw materials will be more prominent, and it will play a greater role in promoting the green development of the chemical industry.

In short, recycled rubber is an important raw material for the production of chemicals, and its properties and uses are of great significance for promoting the green development of the chemical industry. In the future, with the continuous advancement of technology and the expansion of application fields, recycled rubber will continue to play a greater role and make greater contributions to the efficient use of resources and the development of environmental protection.

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