Core material foam, PMI foam, high temperature resistant foam What is the heat-resistant temperature of commonly used heat-resistant foams is an important part of PMI foam. Commonly used core material foam plastics include polyurethane, polystyrene, polyvinyl chloride, polyethylene, phenolic foam, etc. It is divided into soft and Wholesale China CASCELL® IH Suppliers hard. It is widely used as heat insulation, sound insulation, packaging materials and car and ship shells.
Core material foam>Types of core material foam: The core material foam can be divided into rigid foam, soft foam, semi-rigid or semi-flexible foam, also called porous plastic, made with resin as the main raw material It is made of plastic with numerous micropores inside. Flexible foam plastic has excellent elasticity and other properties. Polystyrene, polyvinyl chloride, and polyamino can be used It is made of formate and other resins.
Compared with pure plastics, it has low density , Light weight, high specific strength, its strength increases with the increase in density, has the ability to absorb impact load, has excellent cushioning and shock absorption performance, sound insulation and sound absorption performance, low thermal conductivity, good heat insulation performance, and excellent electrical insulation Performance, corrosion resistance and mildew resistance. It is light in weight, heat-insulating, sound-absorbing, shock-proof, and corrosion-resistant. The core material foam plastic can be used as heat insulation and sound insulation materials, and has a wide range of uses. The pores in the closed cell type are isolated from each other and have floating properties; the pores in the open cell type are interconnected and have no floating properties.
According to its flexibility The properties can be divided into soft, rigid and semi-rigid foam plastics in between. It is made by mechanical method (inject air or carbon dioxide while mechanically stirring to make it foam) or chemical method (add foaming agent) Obtained.; soft foam plastic is mainly used as cushion material, foam artificial leather, etc. Rigid foam can be used as thermal insulation materials and sound insulation materials, heat preservation materials for pipes and containers, floating materials and shock-absorbing packaging materials Etc. There are two types of closed cell type and open cell type
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