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[Chemical Knowledge]：The nature and use of anti-aging agents.

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The nature and use
of anti-aging agents in the field of raw materials for chemical production
1. Introduction

anti-aging agents are an important class of additives in chemical production, mainly used to prevent polymer materials from aging due to heat, oxygen, light and other factors in the process of processing and use. In rubber, plastic and other polymer materials, the role of antioxidant is particularly important, which can significantly improve its service life and performance stability. This article will detail the nature and use of antioxidants.

2. the nature of the antioxidant

antioxidant usually has the following properties:

1. Good thermal stability: antioxidant can be stable at high temperature, not easy to decompose, so as to effectively protect the polymer material from thermal oxidation damage.
2. Oxidation resistance: The antioxidant has strong oxidation resistance, which can effectively inhibit the degradation of polymer materials during oxidation and improve the oxidation resistance of materials.
3. Ultraviolet absorption: Some antioxidants have ultraviolet absorption properties, which can absorb ultraviolet rays and prevent them from damaging polymer materials.
4. Compatibility with polymer materials: The antioxidant needs to have good compatibility with polymer materials in order to be evenly dispersed in the material and play its protective role. The use of

3. antioxidant

antioxidant has a wide range of uses in the field of chemical production raw materials, mainly used in the following aspects:

1. rubber products: in rubber products, antioxidant can prevent rubber by heat, oxygen, light and other factors and aging, improve the service life and performance stability of rubber products. For example, in tire production, the addition of anti-aging agents can significantly extend the service life of tires.
2. Plastic products: In plastic products, antioxidants can prevent plastics from aging due to oxidation, ultraviolet rays and other factors, and maintain the appearance and mechanical properties of plastic products. For example, in the production of outdoor products, the addition of antioxidants can improve the weather resistance of the product.
3. Coatings and adhesives: In coatings and adhesives, antioxidants can improve the weather resistance and oxidation resistance of products and extend their service life. For example, in building exterior wall coatings, the addition of antioxidants can improve the weather resistance of the coating and prevent the aging of the coating caused by ultraviolet radiation and climate change.

4. common antioxidant types

common antioxidant types include amine antioxidant, phenolic antioxidant, phosphite antioxidant, etc. These types of antioxidants have their own characteristics and scope of application, and can be selected and used according to specific needs.

5. conclusion

In short, antioxidants play an important role in the field of chemical production raw materials, which can significantly improve the service life and performance stability of polymer materials. With the continuous progress of science and technology, more new and efficient antioxidants will be developed in the future, providing more possibilities for the development of chemical production.

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