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

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Polypropylene (PP) is a kind of plastic material widely used in the field of chemical production, which has excellent physical properties and chemical stability. In the upstream and downstream related products of PP, the upstream raw materials mainly include propylene monomer and other additives, while the downstream products involve various plastic products and processed products.

1. upstream raw material

1. Propylene monomer: Propylene monomer is the main raw material for the production of polypropylene, accounting for the vast majority of PP production costs. Propylene monomer is polymerized to produce polypropylene.
2. Catalyst: The production of polypropylene requires the use of a catalyst to promote the polymerization of the propylene monomer. Common catalysts include Ziegler-Natta catalysts and metallocene catalysts.
3. Additives: In order to improve the performance of polypropylene, some auxiliary materials need to be added during the production process, such as antioxidants, anti-ultraviolet agents, and toughening agents.

2. downstream products

1. Plastic products: Polypropylene is widely used in the production of various plastic products, such as household appliances, auto parts, building materials, packaging materials, etc. These products have the advantages of light weight, easy processing, corrosion resistance, etc.
2. Fiber: Polypropylene fiber is a widely used chemical fiber, which can be used in the production of textiles, non-woven fabrics and other products.
3. Film: Polypropylene film has excellent transparency and toughness, and can be used in packaging, agricultural cover and other fields.
4. Pipes and profiles: Polypropylene can be processed into pipes and profiles for conveying fluids, building structures, etc.

In short, as an important raw material for the production of chemicals, polypropylene has a wide range of upstream and downstream related products, involving many fields. With the continuous development of science and technology, the application field of polypropylene will continue to expand.

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