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[Chemical Knowledge]：What material is foam? Don't imagine, explain the truth!

Read： 291 Time：18months ago Source：Transform the World with Simplicity

Foamed material refers to the use of high temperature, high pressure, the use of chemical reaction, physical action will change the molecular structure, so that it has a foam hole structure of the material. Because of its high porosity and large specific surface area, it has the characteristics of light weight, heat preservation, sound absorption, heat insulation and fire prevention. Widely used in environmental protection, building materials, transportation, home appliances, packaging, sporting goods and many other fields.

its common production processes, including physical foaming, chemical foaming, blister method, quality foaming, perlite foaming and other ways. Different materials and production processes will affect their physical and chemical properties, such as density, porosity, thermal conductivity, strength, appearance, etc. Among them, polyethylene foam, polyurethane foam, polystyrene foam and other common foaming materials, have good characteristics. In the application field of

, foam materials have a wide range of uses, such as thermal insulation filling, roofing, partition walls, etc. in the construction field; sound insulation, protection, buffering, etc. in the field of home appliances; brake lining, guardrail, automobile sheet metal protection, etc. in the field of transportation; sneaker, plastic runway, fitness equipment, etc. in the field of sporting goods; electronics, food, wine, textiles, etc. in the field of packaging; landfill coverage and sewage treatment fillers in the field of environmental protection.

Generally speaking, the foamed material has achieved good results in practical applications. Although it also has problems such as not being able to deliberately destroy and not being able to contact the fire source, but for its advantages, it has a broader development space in the future. From the perspective of environmental protection, foaming materials can help save energy, reduce emissions, and extend life, making them more worthy of promotion and application.

summary, foam materials not only have a variety of physical and chemical properties, but also cover the application needs of many fields. Foaming material is an industry with broad development prospects, and it is believed that there will be more and more good products and good applications in the future.

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