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关于
材料类型
- 多元醇
材料
无可用数据
一般特征
Desmophen® 7653 W is a reactive trifunctional polyether modified with a polyurea of fine particle size with a solid content of approx. 10% by weight, for the production of high resilience flexible PUR slabstock foams of medium hardness.
储存条件
Recommended storage temperature (°C): 10 - 35
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Note:
The filler dispersed in Desmophen 7653 W tends to settle. The product must be recirculated or stirred in order to homogenize it before processing.
Recommended temperature for processing (°C): 20 - 25.
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Note:
The filler dispersed in Desmophen 7653 W tends to settle. The product must be recirculated or stirred in order to homogenize it before processing.
Recommended temperature for processing (°C): 20 - 25.
样品
Moisture access must be prevented when taking product samples.
包装类型
无可用数据
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 |
|---|---|---|---|
| Appearance | PET-03-04 | opaque, white liquid | |
| Thermal conductivity at 20 °C | DIN 52612-1 | W ^. m^-1 ^. K^-1 | 0.152 |
| Specific heat capacity (Cp) at 25 °C | DIN 51007 | kJ/kg ^. K | 1.801 |
| Density 25 °C | DIN 51757 | g/cm³ | 1.05 |
| pH | 2201-0240101-92-D | approx. 8 | |
| TDI basic value | pbw Desmodur® T calculated on 100 pbw Desmophen® 7653 W in an anhydrous state. | 4.34 | |
| The water content must be taken into account when preparing the formulation. |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Hydroxyl number | 2201-0135202-90 | mg KOH/g | 25.5 - 30.5 |
| Hydroxyl number | 2201-0135202-90 | mg KOH/g | 25.5 - 30.5 |
| Water content | PET-19-01 | % by wt. | 0.23 - 0.33 |
| Water content | PET-19-01 | % by wt. | 0.23 - 0.33 |
| Viscosity 25 °C | PET-10-01 | mPa*s | 1550 - 2050 |
| Viscosity 25 °C | PET-10-01 | mPa*s | 1550 - 2050 |
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技术数据表
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安全数据表无可用直接下载，请访问 www.productsafetyfirst.covestro.com
