What are the main uses of polyurethane hoses

The specific content of the scientific research on the software performance of the polyurethane hose anti-combustion system includes the following two key aspects. One is the ability to avoid the spread of the flame, that is, the thermal insulation material has some development trends that cause harmful flames, and the flames will not spread and extinguish themselves. Second, according to the raw material company's own thermal insulation performance, even if a fire occurs on one side of the raw material, the temperature change on the other side is not easy to rise to a higher level, resulting in the continuous expansion of social development fire accidents.

Compared with polyethylene foam and polyurethane economic foam, there are two different characteristics. One is that there is no dripping when a fire occurs, and the other is that there is no denser carbon layer on the surface when a fire occurs, which must prevent the foam. Further increase combustion. It has good flame resistance. For example, the flame sprayed from the welding machine reaching a temperature of 3000 ° C points to the thermal insulation foam board. After 2 minutes, there is no significant wind sensation entering the back of the board, and there is no pyrolysis reaction and smoke.