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

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BOPA (biaxially oriented nylon) is a high-performance engineering plastic with excellent heat resistance, cold resistance, oil resistance, chemical resistance and mechanical strength. It is widely used in packaging, electronics, automobiles, aerospace and other fields. In the field of raw materials for chemical production, the upstream and downstream related products of BOPA mainly include the following categories:

upstream products:

1. Adipic acid: Adipic acid is one of the important raw materials for the production of BOPA, which is mainly used to synthesize nylon 66 salt and then produce BOPA.
2. hexamethylene diamine: hexamethylene diamine is also one of the key raw materials for the production of BOPA, which reacts with adipic acid to produce nylon 66 salt.
3. Benzene: Benzene is one of the raw materials for the production of adipic acid and hexamethylene diamine, which is obtained by the oxidation and amination reaction of benzene.

downstream products:

1. Packaging film: BOPA can be made into packaging film for food, medicine, cosmetics and other products, with high barrier, heat resistance, cold resistance and transparency.
2. Electronic products: BOPA has good insulation and high temperature resistance, and can be used to produce parts of electronic products, such as wires and cables, capacitors, etc.
3. Auto parts: BOPA can be used to produce auto parts, such as oil pipes, fuel tanks, valve guides, etc., with excellent oil resistance and chemical resistance.
4. Aerospace materials: BOPA has the advantages of high strength and light weight, and can be used to produce aerospace parts, such as aircraft skin, propellers, etc.

In short, BOPA's upstream and downstream related products are very extensive, involving many fields, such as chemical industry, packaging, electronics, automobiles, aerospace, etc.

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