Author: Superstar Publish Time: 2024-04-16 Origin: Site
Foam plastic is a type of polymer material formed by a large number of gas micropores dispersed in solid plastic. Its dielectric properties are better than those of the matrix resin and it has a wide range of uses. Almost all kinds of plastics can be made into foam plastics, and foam molding has become an important field in plastic processing.
It has the advantages of light weight, heat insulation, sound absorption, shock resistance, moisture resistance and corrosion resistance. It is widely used in thermal insulation, sound insulation, packaging materials and car and ship shell making.
Among the more common traditional foam plastics, there are mainly polyurethane (PUR), polystyrene (PS), polyvinyl chloride (PVC), polyethylene (PE), phenolic resin (PF) and other varieties.
Foam Material Classification:
1. Molded polystyrene foam (EPS) board: When used for insulation of low-temperature pipes such as cold storage and air conditioners, a vapor barrier must be provided on the outer surface of the EPS board.
2. Extruded polystyrene foam (XPS) board: suitable for inverted roofs and air conditioning ducts.
3. Rigid polyurethane foam (PUR): mostly used for insulation of heating pipes.
4. Polyethylene foam (PE): suitable for low temperature pipes and air conditioning ducts.
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