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PMMA (Polymethyl methacrylate) is a transparent organic glass with advantages such as high transparency, high hardness, good weather resistance, and easy processing. It is widely used in the field of chemical raw materials. The manufacturing method of PMMA will be introduced below

1、 The main raw material for manufacturing PMMA is methyl methacrylate (MMA). MMA is a colorless and transparent liquid with a strong irritating odor. Before making PMMA, it is necessary to purify and remove impurities from MMA

2、 The manufacturing process of polymerization reaction 

PMMA is to convert MMA monomers into polymer through polymerization reaction. Polymerization reactions can be carried out in solution or in bulk. Among them, solution polymerization is a commonly used method

1. Solution polymerization method 

Solution polymerization method is the process of adding MMA monomers, initiators, solvents and other raw materials to a polymerization reactor and conducting polymerization reaction under stirring. Commonly used initiators include benzoyl peroxide, azodiisobutyronitrile, etc. During the reaction process, it is necessary to control factors such as temperature, stirring speed, and initiator dosage to ensure the smooth progress of the reaction

2. Ontology polymerization method 

Ontology polymerization method involves directly adding MMA monomers and initiators to a polymerization reactor for polymerization reaction, without the need for solvents. This method has the advantages of high product purity and low production cost, but it requires controlling the reaction temperature and pressure to ensure the stability and safety of the reaction

3、 After the polymerization reaction is completed, post-treatment of PMMA is required to obtain high-quality products. Post processing includes processes such as crushing, granulation, drying, and screening to obtain PMMA products with a certain particle size and dryness

4、 Notes 

1 During the manufacturing process, it is necessary to strictly control the quality of raw materials to ensure the stability and reliability of the product

During the polymerization reaction process, attention should be paid to temperature and pressure control to avoid safety accidents

During the post-processing process, attention should be paid to the particle size and dryness of the product to ensure its quality and performance

In summary, the manufacturing process of PMMA requires strict control of the process parameters and raw material quality of each process to ensure product quality and stability. At the same time, it is necessary to pay attention to safety production and environmental requirements to avoid harm to the environment and human health.