| Molecular Principal Chain: | Element Organic Polymer |
|---|---|
| Density: | 30-40kg/M3 |
| Compressive Strength: | 0.16MPa |
| Heat Conductivity Coefficient: | 0.022W/(M.K) |
| Closed Cell Rate: | 95% |
| Dimensional Stability(70ºC 48h): | 1% |
| Samples: |
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| Customization: |
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Household appliance such as refrigerator and water heater usually have a polyurethane casting foam layer inside the case to reach the heat insulation energy efficient effect. Applying with polyurethane insulation foam layer in the refrigerator can reduce the cases' thickness, the available capability inside is much bigger than that of glass fiber insulation layers in the same external dimensions. Since polyurethane foam has high strength, when the case adheres to the interior walls without any supporting materials needed which occurs no "cold bridge" and ensures the overall excellent insulation performance of refrigerator and water heaters. STWD Urethane Co., USA developed refrigerator and water heater special heat insulation materials and it has been widely applied in the household appliance production enterprises in the US.
Characteristics
Chemically foaming by special polyether polyol and isocyanate. With good fluidity in the foaming process and easy to shape, the foam density is uniform and impact, with reasonable structure and excellent dimensional stability and adhesion strength. Low heat conductivity coefficient, high heat insulation, light weight, with high compressive strength and strong low temperature shrinkage performance. Newly blowing agent without pollution to environment and be green Eco friendly.
Specifications
Density 30-40kg/m3
compressive strength ≥0.16Mpa
heat conductivity coefficient ≤0.022W/(m.k)
Closed cell rate ≥ 95%
Dimensional stability(70ºC 48h) ≤1%
combustion performance B2 class
Basic data
| By hand | By casting machine | ||
| Mixing time | second | 8-10 | ---- |
| Cream time | second | 15-20 | 15-20 |
| Gel time | second | 45-75 | 45-75 |
| Tack-free time | second | 95-150 | 95-150 |
| Release time | minute | 8-12 | 8-12 |
Recommended procedures
Casting by special machine with ratio of 1:1. If casted by hand, mix uniform with Stirrer by the speed of 2000-3000r/min.
Application scope heat insulation layer of refrigerator, freezer, solar water heater and electric water heater.
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