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材料类型
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材料
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一般特征
Desmophen VPLS 2388 is a flexibilizing hydroxyl-bearing polyester.
It is suitable for use as a co-reactant, primarily with Desmodur® N, in the formulation of two-component polyurethane coatings for plastics, characterized by their resistance to accelerated and outdoor weathering, high film elasticity and good tar resistance; also in the flexibilization of hard coatings, e.g. in industrial applications.
It is suitable for use as a co-reactant, primarily with Desmodur® N, in the formulation of two-component polyurethane coatings for plastics, characterized by their resistance to accelerated and outdoor weathering, high film elasticity and good tar resistance; also in the flexibilization of hard coatings, e.g. in industrial applications.
储存条件
Desmophen VPLS 2388 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is somewhat hygroscopic. The product is sensitive to moisture. Storage at higher temperatures will result in an increase of color and viscosity. Recommended storage temperature is 5º-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. 450 | ||
| Density at 20^oC | g/cm^3 | approx. 1.1 | |
| Flash point | °C | approx. 35 |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| OH content | % | 3.8 ± 0.3 | |
| Non-volatile content (1 g, 1 h, 125^oC) | % | 80 ± 2 | |
| Viscosity | mPa∙s | 3,000 ± 500 | |
| Hazen color value | < 100 | ||
| Acid value | mg KOH/g | < 3.0 |
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