Manufacturing Methods of Synthetic Rubber
I. Introduction
Synthetic rubber is an important raw material in the production of modern chemicals, and is widely used in the manufacture of various products such as tires, pipes, seals, and shoe soles. With the continuous progress of science and technology, the manufacturing methods of synthetic rubber are also developing. This article will introduce several common synthetic rubber manufacturing methods.
II, emulsion polymerization method
emulsion polymerization method is one of the main methods for the production of synthetic rubber. The method is the monomer, water, emulsifier and initiator and other raw materials are mixed together to form an emulsion and then polymerization reaction at a certain temperature and pressure to produce rubber particles. The synthetic rubber produced by this method has large molecular weight and narrow molecular weight distribution, and has better mechanical properties and processing performance. At the same time, emulsion polymerization production process is safer, more environmentally friendly, is widely used in the production of a variety of general-purpose rubber and specialty rubber.
Third, solution polymerization method
Solution polymerization method is the monomer, initiator and solvent and other raw materials are mixed together to form a homogeneous solution after the polymerization reaction to generate high molecular weight rubber. The synthetic rubber produced by this method has higher molecular weight, better mechanical properties and oil resistance. However, the solution polymerization method requires the use of a large number of organic solvents, greater environmental pollution, production costs are also higher.
IV, suspension polymerization method
suspension polymerization method is the monomer, water, dispersant and initiator and other raw materials are mixed together to form a suspension after the polymerization reaction to generate rubber particles. This method produces synthetic rubber with higher molecular weight and better processing performance. At the same time, the suspension polymerization method of production process is relatively simple, safe, and lower production costs.
V. Body polymerization method
Body polymerization method is the monomer and initiator and other raw materials are mixed together to carry out the body polymerization reaction to generate high molecular weight rubber. This method produces synthetic rubber with high purity and good mechanical properties. However, the propriety polymerization method requires high temperature and high pressure conditions, higher production equipment and technical requirements, and higher production costs.
VI. Conclusion
In short, different synthetic rubber manufacturing methods have different advantages and disadvantages and scope of application. In actual production, the appropriate manufacturing method should be selected according to the product performance requirements, production costs and environmental requirements and other factors. At the same time, with the continuous progress of science and technology and environmental protection awareness, the future manufacturing methods of synthetic rubber will be more environmentally friendly, efficient and energy-saving.
