PVC Free Foam Board Microporous plastic

Foam is a kind of macromolecule material formed by dispersing a large amount of gas micropores in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption and shock absorption, and the dielectric properties are better than those of matrix resin. Almost all kinds of plastic can be made of foam, foam molding has become an important area of plastic processing.

Also known as microporous plastic. The whole is covered with numerous interconnected or interconnected microporous leaving the apparent density of plastic significantly reduced. With a light, adiabatic, sound-absorbing, shock, moisture, corrosion and other advantages. According to its cell structure can be divided into closed cells, openings and reticular foam. Closed cell foam All cells are almost non-connected. Open Cell Foam All cells are almost all connected. Cellular foams that are almost free of cell walls are called reticulated foams. According to the density of foam can be divided into low foaming, foam and high foam foam. Density of more than 0.4g / cm3 for the low foam foam, the density of 0.1 ~ 0.4g / cm3 for the foam in the foam, the density of less than 0.1g / cm3 for the high foam foam.

Foam is a plastic as the basic component and contains a large number of bubbles of polymer materials, it can be said to be a gas-based composite plastic. Compared with pure plastic, it has many excellent performance, such as light weight, high strength, can absorb the impact load, heat insulation and sound insulation and so on. And thus in the industrial, agricultural, construction, transportation and other fields has been widely used. (PUR), polystyrene (PS), polyvinyl chloride (PVC), polyethylene (PE), phenolic (PVC), polyphenols (PVC), poly (vinyl alcohol) (PVC), polyethylene (PE), phenolic Resin (PF) and other varieties.

Foam according to its flexibility can be divided into soft, hard and in between the semi-rigid foam. Rigid foam can do thermal insulation materials and sound insulation materials, pipes and containers such as insulation materials, floating materials and shock packaging materials; soft foam mainly to do cushioning materials, foam, such as artificial leather. Commonly used foam polyurethane, polystyrene, polyvinyl chloride, polyethylene, phenolic foam and so on.

Material characteristics

Foam is also called porous plastic. Made of resin as the main raw material with numerous microporous plastic. Light, adiabatic, sound-absorbing, shockproof, corrosion-resistant. There are soft and hard points. Widely used for insulation, sound insulation, packaging materials and machinery and so on.

Compared with pure plastic, foam has the advantages of low density, light weight, high specific strength, its strength increases with the increase of density, has the ability to absorb the impact load, has excellent buffer damping performance, sound insulation performance, thermal conductivity Low insulation performance, excellent electrical insulation properties, with corrosion resistance, resistance to mold performance. Soft foam has excellent elasticity and other properties.

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