[Chemical Knowledge]：The production and manufacturing method and process of synthetic rubber raw materials.

The manufacturing method
of synthetic rubber raw materials
1. Introduction

Synthetic rubber is an important raw material in the production of chemicals and is widely used in the production of rubber products such as tires, hoses, tapes, seals, etc. With the continuous development of science and technology, the manufacturing methods of synthetic rubber have been continuously improved, which has improved production efficiency, reduced production costs, and provided a strong guarantee for the development of the rubber products industry. This article will introduce several common manufacturing methods of synthetic rubber raw materials.

2. styrene-butadiene rubber

styrene-butadiene rubber is one of the most common synthetic rubbers, mainly made of butadiene and styrene. Its manufacturing method mainly has two kinds of emulsion polymerization method and solution polymerization method.

1. Emulsion polymerization method: butadiene and styrene monomer in the role of emulsifier, together with water to form an emulsion, polymerization reaction, the formation of styrene butadiene rubber latex, and then through coagulation, drying and other processes, the styrene butadiene rubber products.

2. solution polymerization method: butadiene and styrene monomer dissolved in organic solvent, polymerization reaction, the formation of styrene butadiene rubber solution, and then through precipitation, drying and other processes, the styrene butadiene rubber products.

3. cis-polybutadiene rubber

cis-polybutadiene rubber is polymerized from butadiene monomer, and its manufacturing method mainly uses solution polymerization method. The butadiene monomer is dissolved in an organic solvent to initiate a polymerization reaction to generate a butadiene rubber solution, which is then subjected to precipitation, drying and other processes to obtain a finished product of butadiene rubber.

4. chloroprene rubber

chloroprene rubber is polymerized from chloroprene monomer, and its manufacturing method mainly adopts emulsion polymerization method. The chloroprene monomer in the role of emulsifier, together with water to form an emulsion, polymerization reaction, the formation of chloroprene rubber latex, and then through coagulation, drying and other processes, to obtain chloroprene rubber products.

5. ethylene propylene rubber

ethylene propylene rubber is made of ethylene, propylene monomer copolymer, the manufacturing method is mainly used in solution polymerization or gas phase polymerization method. The solution polymerization method is to dissolve ethylene and propylene monomers in an organic solvent, initiate a polymerization reaction, generate an ethylene-propylene rubber solution, and then undergo precipitation, drying and other processes to obtain an ethylene-propylene rubber product. The principle of gas phase polymerization is that ethylene and propylene monomers are introduced into the reactor under high temperature and high pressure to carry out gas phase polymerization reaction to generate ethylene-propylene rubber powder, which is then processed to obtain ethylene-propylene rubber products. The development trend of

6. manufacturing process

With the continuous progress of science and technology, the manufacturing process of synthetic rubber is also developing. In the future, the manufacturing process of synthetic rubber will pay more attention to the development of environmental protection, high efficiency and energy saving. Specifically, the future development trend of synthetic rubber manufacturing process mainly includes the following aspects:

1. Environmental protection: With the continuous improvement of environmental protection awareness, the future synthetic rubber manufacturing process will pay more attention to environmental protection and reduce environmental pollution. For example, the use of green raw materials, optimize the production process, improve the utilization rate of waste.

2. High efficiency: Improving production efficiency is an important development direction of synthetic rubber manufacturing process in the future. By improving the production process and improving the degree of automation of equipment, the production efficiency can be improved, the cost can be reduced, and the competitiveness of enterprises can be improved.

3. Energy saving: Energy saving and emission reduction is another important development direction of synthetic rubber manufacturing process in the future. Using energy-saving technology and optimizing energy utilization can reduce energy consumption and improve the economic and social benefits of enterprises.

In short, the future of synthetic rubber manufacturing process will pay more attention to environmental protection, high efficiency, energy saving and other aspects of development, for the sustainable development of the rubber products industry to provide a strong guarantee.