The characteristics of the polyurethane composite panels
light weight, high strength, good dimensional stability
we produce batch sheet, rigid polyurethane foam slaking foam performance tests after a week, foam performance such as table 1.
polyurethane plate performance table 1
density/kg· bubble indicator test result; m - 342
/ W· thermal conductivity; （ m· k） - 10. 022
high temperature / % ( 100℃，48h） 0.
low temperature / % 2 ( - 30℃，48h） 0. 6
2. Strong adhesive force
polyurethane hard foam metals such as steel, aluminum, stainless steel, wood, concrete, asbestos, asphalt, paper and most of the plastic material such as polyethylene, polypropylene has good bonding strength.
foam material and the bonding strength between directly affects the size of the practical effect of composite plate.
table 2 rigid polyurethane foam plastics and bonding strength of wood
foam with different surface and the foam density of connection panel/kg· m - 3
material bonding strength/kPa3080160320
aluminium 68. 65186. 33382. 461078. 73
glass 58. 80176. 52343. 23980. 67
steel 78. 45196. 13431. 491010. 08 117
wood. 68196. 13421. 691176. 80年
3。 Adiabatic performance superior
polyurethane hard foam obturator rate is high, the coefficient of thermal conductivity is extremely low, so rigid polyurethane in current building materials in the thermal insulation performance is best. Polyurethane (pu) sandwich panels, according to data than not heat preservation and heat insulation of exterior wall save 60% homework after heating fee
with steel plate with rigid polyurethane foam plastics composite as an example, the thermal conductivity of the composite plate are listed in table 3.
table 3 steel and the thermal conductivity of the rigid polyurethane foam composite panels
composite aggregate thickness/mm thermal conductivity/W· （ m· k） - 1