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What are the raw materials used for high-temperature foam?

Update:09-12-2021
Summary:

Polystyrene foam board, also known as foam board, EPS b […]

Polystyrene foam board, also known as foam board, EPS board, is a white object made of expandable polystyrene beads containing volatile liquid foaming agent, which is pre-heated and heated in a mold. High temperature resistant foam has the characteristics of fine closed-cell structure. It is mainly used for building walls, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship insulation, floor heating, decoration and carving, etc. It has a wide range of uses.

 

High temperature resistant foam can effectively eliminate "thermal bridges". In the past, internal insulation was used. "Heat bridges" were unavoidable. External wall insulation can effectively prevent thermal bridges and avoid condensation. Protect the main structure of the building to extend the life of the building. Because the external thermal insulation is to place the thermal insulation layer on the outside of the structure, it reduces the pressure generated by the structural deformation caused by temperature changes, and reduces the corrosion of the structure by harmful substances in the air and ultraviolet rays.

 

 

Increasing the use area of ​​the house can avoid damage to the thermal insulation layer by the secondary decoration. The moisture temperature of the wall is improved. Generally, internal insulation needs to be equipped with a vapor barrier, and the temperature permeability of the external thermal insulation material is far stronger than that of the main structure. Condensation does not generally occur inside the wall, and the high-temperature foam structure The temperature of the entire wall of the layer is increased, which further enhances the thermal insulation performance of the wall, which is conducive to the stability of the room temperature.

 

The use of external insulation for the external wall, because the structural layer with greater heat storage capacity of the wall is on the inner side of the wall, is conducive to maintaining a stable room temperature. In the molding process, a certain amount of interference is given to the foam core material. During the mold clamping and curing process, the interference provides back pressure to the curing of the panel. The compressive creep resistance of PMI foam is the prerequisite and guarantee for the transformation of interference into back pressure. The back pressure can be adjusted according to the resin content of the layer, the curing system, and the thickness of the panel by setting the appropriate amount of interference. Meet the requirements of curing pressure.