Do you know the Main Purpose of MMA?

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Polymerized monomers and additives

Methyl methacrylate is an organic compound, also known as MMA, referred to as methyl methyl. It is an important chemical raw material and the monomer for the production of transparent plastic polymethyl methacrylate (organic glass, PMMA). It is flammable, has a strong pungent odor, has moderate toxicity, and should avoid long-term contact.

MMA Plant

Methyl methacrylate is a monomer of polymethyl methacrylate (organic glass), which is also copolymerized with other vinyl monomers to obtain products with different properties. It is used to manufacture organic glass, paints, lubricant additives, plastics, and adhesives. , Resin, wood infiltrating agent, motor coil infiltrating agent, ion exchange resin, paper polishing agent, textile printing and dyeing auxiliary agent, leather treatment agent, printing and dyeing auxiliary agent and insulation pouring material, etc. Preparation of other acrylates (transesterification method)

The preparation methods of acrylic esters mainly include: alkyd direct esterification method, acid chloride esterification method, transesterification method, etc. By using methyl methacrylate and different alcohols, corresponding acrylates and methanol can be obtained. Dimethylaminoethyl methacrylate (DMAEMA), butyl methacrylate (BMA), 2-ethylhexyl methacrylate and the like can be used by the transesterification method.

The catalyst used in the transesterification method is traditionally mainly an inorganic acid, an organic acid or its acid salt, and the advantage is that the price is relatively cheap. However, they are highly corrosive and have strict requirements on equipment, equipment and operating conditions. And the reaction time is long, the side reactions are many, and the three wastes are serious, which makes the color of the product darker. Such catalysts will be gradually eliminated in the transesterification process. Non-acidic catalysts are the new direction of development in recent years. Its main features are no corrosion, good product quality, light color, less side reactions, and milder reaction conditions. Organotin compounds, titanate compounds and alkali metal alkoxy compounds are ideal catalysts for transesterification. As long as the recycling problem is solved, it will be widely used in industrial production in the future.

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