Rigid Polyurethane Foam is a professional cryogenic insulation material. It is mainly made from polyether polyols plus isocyanate added with flame retardant, foaming agent and stabilizing 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. As a result, it is usually used as cold insulation and heat preservation at low temperatures. 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.
产品优势：
1、热固性材料、阻燃等级高；
2、导热系数低、绝热效果好；
3、具有无氟、环保、防腐、防霉变等特点
4、机械强度高、尺寸稳定性佳、经久耐用；
Products advantages:
1. Thermosetting material with high level of combustion retarding；
2. Low thermal conductivity, excellent cold insulation effects.
3. It features fluorin-free, environment-friendly, anti-corrosive, anti-mold and etc.
4. High mechanical strength, dimensional stability and durable life.
技术参数 Technical Data
|
项 目Item |
单 位 Unit |
技术参数 Technical Date |
|
|
密 度 Density |
Kg/m3 |
≥35 |
|
|
导热系数（常温） Thermal conductivity（Ambient Temp.） |
W/(m·K) |
≤0.023 （+23℃） |
|
|
抗压强度(压缩10%) Compressive Strength （10% Relative Deformation） |
Kpa |
各方向 ≥200 （23℃） All Direction ≥200 （23℃） |
|
|
液氮浸8小时 8h in Liquid N2 |
不变形、不开裂 No deformation, No crack |
||
|
燃烧性 Combustibility |
自熄性 Self-extinguishingproperty |
|
火焰离开2S内自熄 Self-extinguishes within 2 seconds after flame taken away |
|
氧 指 数 Oxygen Index(OI) |
|
≥26 |
|
|
体积吸水率 Water Absorption |
% |
≤4% （By Vol） |
|
|
推荐使用温度 The proposed Service Temp. |
℃ |
-110 ～ +110 |
|