What is the difference between expanded polystyrene board and extruded polystyrene board?
The honeycomb structure of the thick plate, there is no gap, this closed-cell structure Insulation materials can have different pressures (150-500Kpa) at the same time have the same low value of the thermal conductivity (only 0
It is made of polystyrene resin and other additives through the extrusion process has a continuous uniform surface and closed-cell honeycomb structure of the plate.
First, good flame-retardant properties and environmental protection Insulation layer to contact with the warm tube, heat medium temperature of 45 to 60 degrees Celsius, organic materials will be volatile toxic or flavored gas, is not conducive to human health, which is it With the external walls or roof insulation material difference. Commonly used materials, inorganic materials (such as expanded perlite, foam cement, etc.) has a good environmental, flame retardant, and good thermal insulation properties of polymers (such as polystyrene foam or sheet) Flame resistance is worse. Therefore, the development of both good thermal insulation and flame retardant composite materials will be the direction of development. In addition, the thermal conductivity of the insulation material is related to the bulk density of the material. The higher the porosity, the smaller the thermal conductivity, the better the thermal insulation performance. And the capacity of the General Assembly to increase the weight of the building and the floor load, so to choose the weight of small materials. At the same time, to deal with the contradiction between the bulk density and thermal conductivity. Detailed to this understanding www.jfm668 hope to help you, good luck.
