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

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Propylene glycol is an important chemical raw material, which is widely used in the production of various chemicals. Among the upstream and downstream related products of propylene glycol, the upstream products mainly include propylene oxide and propylene, while the downstream products include unsaturated polyester resin, polyurethane, cosmetics, food additives, etc.

1. Upstream Associated Products

1. Propylene Oxide

Propylene oxide is one of the main raw materials for the production of propylene glycol. The addition reaction of propylene oxide with water under the action of acidic catalyst generates propylene glycol. Therefore, the availability and price fluctuations of propylene oxide have a significant impact on the production and cost of propylene glycol.

2. Propylene

Propylene is another important upstream feedstock for propylene glycol. Propylene is oxidized to produce acrolein, which is then hydrogenated to produce propylene glycol. Therefore, changes in the market for propylene will also have an impact on the production of propylene glycol.

2. downstream associated products

1. unsaturated polyester resin

propylene glycol is one of the important raw materials of unsaturated polyester resin. Unsaturated polyester resin has excellent physical properties and chemical stability, and is widely used in FRP products, coatings, adhesives and other fields. Therefore, the market demand of unsaturated polyester resin has an important impact on the consumption of propylene glycol.

2. polyurethane

propylene glycol is also one of the important raw materials of polyurethane. Polyurethane has the advantages of high strength, high elasticity, wear resistance and corrosion resistance, and is widely used in furniture, construction, automobile, aerospace and other fields. Therefore, the market demand for polyurethane will also have an impact on the consumption of propylene glycol.

3. Cosmetic

Propylene glycol is used in cosmetics as a humectant, a thickener, a solvent, and the like. Because propylene glycol has good moisture retention and permeability, it can improve the moisturizing effect and use feeling of cosmetics, so it is widely used in various cosmetics. Consumer demand in the cosmetics market will also have an impact on the consumption of propylene glycol.

4. Food Additives

propylene glycol can be used as food additives, as preservatives, thickeners and stabilizers used in food. Therefore, changes in the food additive market will also have an impact on the consumption of propylene glycol.

In summary, the upstream and downstream related products of propylene glycol are very extensive, involving many fields, such as chemicals, cosmetics, food, etc. Market demand and supply in these areas will have an impact on the production and consumption of propylene glycol.

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