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[Chemical Knowledge]：Production and manufacturing method and process of chloroprene rubber

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The manufacturing method
of neoprene
neoprene is a high-performance synthetic rubber with excellent oil resistance, ozone resistance, chemical resistance and heat resistance, so it is widely used in chemical industry, automobile, aerospace, construction and other fields. This article will introduce the manufacturing method of neoprene in detail.

1. Raw Materials Preparation

The manufacture of chloroprene rubber requires the following raw materials: monomers such as chloroprene, styrene, acrylonitrile, and additives such as initiators and emulsifiers. Among them, chloroprene is the main monomer, and the role of styrene and acrylonitrile is to adjust the performance of rubber.

2. Emulsion Polymerization

The above-mentioned raw materials are added to the emulsion in a certain proportion to carry out the emulsion polymerization reaction. The specific operation steps include: adding the monomer and the auxiliary agent to the emulsifier to form a stable emulsion system; and then adding an initiator to initiate the polymerization of the monomer to generate the chloroprene rubber particles.

3. Coagulation and Drying
After the
emulsion polymerization is completed, coagulation and drying are required to obtain a finished neoprene product. The specific operation steps include: adding a coagulant to the emulsion to coagulate the chloroprene rubber particles into blocks; and then drying the blocks to obtain the chloroprene rubber finished product.

4. post-treatment

In order to further improve the performance of chloroprene rubber, some post-treatment operations are required. For example, some antioxidants, antioxidants and other additives can be added to improve the heat resistance and aging resistance of chloroprene rubber; vulcanization treatment can also be carried out to improve the mechanical properties and chemical resistance of chloroprene rubber.

In short, the manufacture of chloroprene rubber requires multiple steps, including raw material preparation, emulsion polymerization, coagulation drying and post-treatment. Each step requires strict control of process parameters and operating conditions to ensure the quality and performance of the final product.

In the manufacturing process of chloroprene rubber, the following points need to be paid attention to: First, the quality and proportion of monomers must be strictly controlled to ensure the performance and quality of the final product; secondly, the temperature and time of the polymerization reaction must be controlled. In order to avoid side reactions and affect product quality; finally, pay attention to the storage and transportation conditions of the product to avoid the product being affected by factors such as moisture, heat and light.

In addition to the precautions mentioned above, the manufacture of neoprene also needs to consider environmental protection and sustainable development. In the production process, it is necessary to reduce the discharge of waste water and waste gas as much as possible, and improve the utilization rate of resources and production efficiency. At the same time, it is necessary to actively develop new technologies and processes to further improve the performance and quality of neoprene and meet the changing market demand.

In short, the manufacture of neoprene is a complex and delicate work that requires the support of various technologies and knowledge. Only by mastering the correct manufacturing methods and precautions can we produce high-quality, high-performance neoprene products and contribute to the development of chemical, automotive, aerospace and other fields.

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