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[Chemical Knowledge]:What are the upstream raw materials for polyester film? What do the downstream products contain?

Polyester diaphragm has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are numerous. The following will introduce in detail the main upstream and downstream associated products of polyester diaphragm.

Upstream Related Products:

1. Terephthalic acid (PTA):PTA is one of the main raw materials for the production of polyester diaphragm, which comes from the petrochemical industry chain. The quality and price of PTA have an important influence on the production of polyester film.
2. Ethylene glycol (EG): Ethylene glycol is another important raw material for the production of polyester membranes, also from the petrochemical industry chain. The stable supply and price fluctuation of ethylene glycol have an important impact on the cost and production of polyester membranes.

downstream related products:

1. Polyester fiber: Polyester diaphragm can be used to produce polyester fiber, such as polyester. Polyester fiber is widely used in textiles, clothing, non-woven fabrics and other fields, and the demand for polyester diaphragm is large.
2. Polyester bottle: Polyester film can also be used to produce polyester bottle, used to make beverage bottles, food packaging, etc. With the continuous development of the plastic packaging industry, the demand for polyester bottles is also increasing.
3. Film and packaging materials: Polyester film can be used to produce various films and packaging materials, such as food packaging film, cling film, etc. These products are widely used in daily life, and there is a certain demand for polyester diaphragm.
4. Insulation material: Polyester diaphragm has good insulation performance and can be used to produce electrical insulation materials such as wires and cables. With the rapid development of electric power, communication and other industries, the demand for insulating materials is also increasing.

To sum up, there are many upstream and downstream related products of polyester diaphragm, involving petrochemical, textile, clothing, packaging, electrical and other fields. With the continuous progress of science and technology and the expansion of application fields, the types and quantities of polyester film and its related products will continue to increase.
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