How about the fire resistance of polyurethane sandwich panel?
2024-07-06
High-density polyurethane sandwich panels can play a role in insulation, and are mostly used in the interior and exterior wall panels of construction sites. To the insulation effect, the sandwich board can also achieve a certain fire effect, so how is it achieved?
The first thing to pay attention to is the raw materials of the product. The main materials of the factory are polyurethane foam and flame retardant, which is a self-breathing material that is not easy to burn and is not easy to burn in case of fire. Its softening point can be as high as 250 ° C, and it can be decomposed when encountering higher temperatures, fundamentally avoiding slightly higher temperature combustion.
When the polyurethane core material burns, carbon deposits form on the foam surface. Not only does this layer of carbon not burn, it also insulates the flame from the underlying polyurethane foam, causing the flame to lose its burn and thus preventing the fire from spreading. At the same time, the high-density polyurethane insulation composite board will not produce harmful gases at high temperatures, and it is a safe insulation board, and the building insulation and fire prevention project can also be used with confidence.
