Foam Material Advanced PU Foam

Briefing
Rigid polyurethane foam is a new kind of thermal insulating material for low temperature applications. It is mainly made from polyether or polyester plus isocyanate ester added with flame retardant, stabilizing agent and foaming agent and it changes into foaming body through chemical reaction after mixed and stirred. It has high rate of closed cells and low water absorption.
Because of the foaming agent air with low thermal conductivity in its cells, the rigid polyurethane foam will self-extinguish. As a result, it is usually used as cold insulation and heat preservation at low temperatures. It has following features: low thermal conductivity, high strength, light weight, quakeproof, insulation, strong floatability, stable chemical properties and convenience in construction. Consequently, it is widely used in industries of petroleum, chemical engineering, ethylene, refrigerated warehouse, food storage, partition wall and wallboard in family refrigerator and architecture industry. It can be prefabricated into slab or pipe, or be foamed on site.Mechanical PropertiesItemUnitPU50DensityKg/m350 +/-5Heat Conductivity Coefficient
W/(m·k)≤0.023(+23ºC)Compressive/Tensile StrengthKpaAll Direction≥200Liquid nitrogen leaching8HNo Deformation,No CrackInflammabilitySelf-extinguish
--1.5Sflame retardant rating
--B1,B2Oxygen Index--≥26Water Absorption by Vol.
%≤4Continuous Service Temp.
ºC-110~+110