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[Chemical Knowledge]：What are the upstream raw materials of semi-hard foam? What do the downstream products contain?

Read： 335 Time：15months ago Source：Transform the World with Simplicity

Semi-hard foam has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are also quite rich. The following are some of the main upstream and downstream related products of semi-hard foam:

1. Upstream related products:

(1) Polyol: Polyol is one of the main raw materials in the production of semi-hard foam. Commonly used polyols include ethylene glycol, propylene glycol, butylene glycol, etc. The role of these polyols in the semi-rigid foam is primarily to provide flexibility and elasticity to the foam.

(2) Isocyanate: Isocyanate is another important raw material in the production of semi-rigid foam. Commonly used isocyanates include diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), etc. The isocyanate reacts with the polyol to form a polyurethane, thereby effecting the formation of a foam.

(3) Foaming agent: Foaming agent is an auxiliary raw material in the production of semi-hard foam. Its function is to generate gas during the foam generation process to expand the foam. Commonly used foaming agents include water, carbon dioxide, freon, etc.

(4) Catalyst: The catalyst accelerates or slows down the chemical reaction in the production of semi-hard bubbles, thereby controlling the speed and density of foam generation. Commonly used catalysts include amine catalysts and tin catalysts.

2. Downstream related products:

(1) Furniture: Semi-rigid foam can be used as a filling material for furniture to improve the comfort and durability of furniture. Common furniture includes sofas, chairs, mattresses, etc.

(2) Car interior: Semi-hard foam is widely used in car interior, as a filling material for seats, backrests, headrests and other parts to improve driving and riding comfort.

(3) Building materials: Semi-hard foam can be used as the core material of building insulation materials to improve the insulation performance and energy saving of buildings.

(4) Electronic products: Semi-rigid foam can be used for packaging and shock-absorbing materials of electronic products to protect electronic products from damage during transportation and use.

In short, semi-hard foam in the field of chemical production raw materials in the upstream and downstream related products are quite rich, its wide range of applications, to improve product performance and quality has an important role.

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