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[Chemical Knowledge]：What are the upstream raw materials of MBS? What are the downstream products?

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MBS (methyl methacrylate-butadiene-styrene copolymer) is an important raw material for chemical production, which is widely used in plastic modification, adhesives, coatings, building materials and other fields. In the upstream and downstream related products of MBS, the upstream raw materials mainly include methyl methacrylate (MMA), butadiene and styrene, while the downstream products involve various plastic products, synthetic rubber and coatings.

1. upstream raw material

1. Methyl methacrylate (MMA)

Methyl methacrylate is one of the main raw materials of MBS. It is a colorless and transparent liquid with high chemical stability and weather resistance. The production methods of MMA mainly include acetone cyanohydrin method, ethylene method and isobutylene method, among which acetone cyanohydrin method is the most important production method at home and abroad.

2. Butadiene

Butadiene is another important raw material in MBS. It is a colorless and flammable gas with unsaturated double bonds and is prone to polymerization. The main production methods of butadiene are steam cracking, acetylene and alcohol, among which steam cracking is the most important production method at present.

3. Styrene

Styrene is also one of the important raw materials of MBS. It is a colorless and transparent liquid with aromatic taste. The production methods of styrene mainly include ethylbenzene dehydrogenation method, propylene oxide method and acrylonitrile method, among which ethylbenzene dehydrogenation method is the most important production method at present.

2. downstream product

1. Plastic product

MBS, as an important plastic modifier, can be widely used in the production of various plastic products, such as pipes, plates, profiles, films, containers, etc. By adding MBS, the impact resistance, processing performance and weather resistance of plastic products can be improved.

2. Synthetic rubber

MBS can also be used in the production of synthetic rubber, such as butadiene rubber, styrene butadiene rubber, etc. By adding MBS, the processability, crack resistance and aging resistance of rubber can be improved.

3. Coating

As an important coating material, MBS can be widely used in architectural coatings, automotive coatings, wood coatings and other fields. By adding MBS, the weather resistance, scratch resistance and decorative properties of the coating can be improved.

In short, MBS as an important chemical production raw materials, its upstream and downstream related products are widely involved in a variety of plastic products, synthetic rubber and coatings and other fields.

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