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Characteristics of composite polyurethane insulation board
Time:2021/11/2 15:27:05    

1. Rigid polyurethane has low thermal conductivity and good thermal performance. When the bulk density of rigid polyurethane is 35~40 kg/m3, its thermal conductivity is only 0.018~0.023w/(MK), which is about extruded board ( EPS) which is the lowest among all current insulation materials.

2. Rigid polyurethane has waterproof and moisture-proof performance. The sealing rate of rigid polyurethane is greater than 95%. It is a hydrophobic material. Moisture absorption will not increase the thermal conductivity and the wall will not penetrate.

3. Fire-resistant, flame-retardant, and high-temperature resistance. After adding flame retardant, polyurethane is a fire-resistant spontaneous combustion material. The carbide layer formed on the surface helps to isolate the foam below and effectively prevent the spread of fire. In addition, polyurethane will not produce harmful gases at high temperatures.

4. Due to the excellent thermal insulation performance of polyurethane thermal insulation board, under the same thermal insulation requirements, the thickness of the outer protective wall structure of the building can be reduced and the indoor use area can be increased.

5. Strong resistance to deformation, not easy to crack, stable and safe decoration.

6. The pore structure of the polyurethane material is stable and the pore structure is basically closed. It not only has good heat preservation performance, but also has good freeze-thaw resistance and sound absorption performance. Under normal use and maintenance conditions, the average life of rigid foam polyurethane insulation structure can reach more than 30 years. It can be used for external factors such as the normal life of the structure, dry corrosion, wet corrosion, electrochemical corrosion, and the growth of insects, fungi or algae or rodent damage.

7. The comprehensive price ratio is relatively high. Although the unit price of rigid polyurethane foam is higher than that of other traditional insulation materials, the increased cost will be offset by the sharp drop in heating and cooling costs.

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