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[Chemical Knowledge]：What are the upstream raw materials of PMMA? What do the downstream products contain?

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PMMA (polymethyl methacrylate) is a transparent organic glass, with high transparency, weather resistance, chemical resistance and other characteristics, is widely used in the field of chemical production raw materials. The following are the upstream and downstream associated products of PMMA:

Upstream products:

1. Methyl methacrylate (MMA):PMMA is formed by the polymerization of methyl methacrylate monomer, so methyl methacrylate is the main upstream raw material of PMMA.

2. Initiator: The polymerization reaction needs an initiator to start, so the initiator is also one of the upstream raw materials of PMMA. Commonly used initiators are benzoyl peroxide, azobisisobutyronitrile, etc.

downstream products:

1. Building materials: PMMA can be used as building materials, such as windows, skylights, roofs, etc., because of its high transparency, weather resistance and impact resistance.

2. Auto parts: PMMA can be used to manufacture auto lampshades, dashboards and other parts. It has the advantages of light weight and not easy to break.

3. Optical devices: PMMA has high refractive index and transparency, and can be used to manufacture optical devices, such as glasses and lenses.

4. Advertising display: PMMA can be used to make billboards, display stands, etc. It is popular because of its high transparency and good processing performance.

In short, PMMA is an important raw material for chemical production, and its upstream and downstream related products are widely used in various fields, which is of great significance for promoting economic development and improving people's quality of life.

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