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材料类型
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材料
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一般特征
Bayhydur ultra 401-70 MPA/X is a hydrophilically modified aliphatic polyisocyanate based on isophorone diisocyanate (IPDI).
As the co-reactant for aqueous resins and as the hardener for chemically resistant and weather-stable coating systems.
As the co-reactant for aqueous resins and as the hardener for chemically resistant and weather-stable coating systems.
储存条件
Bayhydur ultra 401-70 MPA/X should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The containers must always be kept tightly closed. The access of water in all forms (moist air, solvents, moist containers) must be prevented, because the generation of carbon dioxide can lead to dangerous increases in pressure. Storage at higher temperatures will result in increase of color and viscosity. Recommended storage temperature is 0º-30ºC.
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技术属性和数据表
命名属性特征
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Equivalent weight | approx. 440 | ||
| Flash point | °C | approx. 40 | |
| Density at 20^oC | g/cm^3 | approx. 1.07 |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Monomeric IPDI | % | < 0.35 | |
| Viscosity at 23^oC, (D = 81,8 s^-1) | mPa∙s | 400 - 800 | |
| Non-volatile content (0.2 g / 60 min / 120^oC) | % | 68 - 72 | |
| NCO content | % | 8.9 - 9.9 | |
| Color value | ≤ 60 |
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技术数据表
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