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关于
材料类型
- MDI
- 芳族聚异氰酸酯
材料
无可用数据
一般特征
Desmodur 44V40L is a liquid, dark brown mixture of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It is used in conjunction with polyols to produce rigid polyurethane foams.
储存条件
Recommended storage temperature: + 10 to + 30 °C (in exceptional cases up to 50°C).
Storage stability (ex works): 6 months if stored in moisture-tight drums
Storage stability (ex works): 6 months if stored in moisture-tight drums
样品
Exposure to moisture must be prevented when taking product samples
包装类型
Drums, IBCs, tank containers and tank wagons
技术属性和数据表
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Specific heat (cp) | kJ/kgK | approx. 1.51 | |
| Coefficient of thermal expansion | K-1 | 6.59 . 10-4 | |
| Density 20 °C | DIN 51757 | g/cm³ | approx. 1.23 |
| Phenylisocyanate content | MDI-01-09 | ppm | max. 50 |
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Viscosity 25 °C*) | MDI-01-02 | mPa*s | 350 - 450 |
| NCO content | MDI-01-01 | % by wt. | 30.0 - 32.0 |
| Acidity | MDI-01-03 | ppm HCI | max. 300 |
下载
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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