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

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Upstream and downstream related products
of polyurethane resin As an important raw material for the production of chemicals,
polyurethane resin is widely used in furniture, construction, automobiles, footwear, electronic appliances and other fields. It has many upstream and downstream associated products, some of which are described in detail below.

upstream associated products

1. Polyol
polyol is one of the main raw materials of polyurethane resin, commonly used polyols, polyester polyols and polyether polyols. The structure and properties of polyols have an important influence on the performance of polyurethane resins.
2. diisocyanate
diisocyanate is another important raw material of polyurethane resin, commonly used are diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI) and so on. The diisocyanate reacts with the polyol to form a polyurethane.
3. chain extender
chain extender is used to adjust the molecular weight of polyurethane material, commonly used are small molecule diol, diamine, etc.

downstream related products

1. Polyurethane foam
Polyurethane foam is one of the main application fields of polyurethane resin. It has excellent heat insulation, sound insulation, earthquake resistance and other properties, and is widely used in construction, home appliances, automobiles and other fields.
2. Polyurethane elastomer
Polyurethane elastomer has the advantages of high strength, high elasticity, wear resistance, oil resistance, etc., and can be used to manufacture tires, seals, transmission belts and other products.
3. polyurethane coating
polyurethane coating has excellent weather resistance, chemical resistance, decorative and other advantages, can be used for construction, automobile, furniture and other fields of coating.
4. Polyurethane adhesive
Polyurethane adhesive has the advantages of high strength, high weather resistance, chemical resistance, etc., and can be used for bonding in wood processing, construction, automobiles and other fields.

summary

polyurethane resin upstream and downstream related products, involving a wide range of fields. Understanding the properties and uses of these related products will help to better understand and apply polyurethane resins.

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