关于
材料类型
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材料
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一般特征
DESMODUR CD-S is a modified isocyanate based on diphenylmethane-4,4'-diisocyanate. It is a solvent-free liquid which is slightly yellowish and of low viscosity at room temperature. It crystallizes at lower temperatures.
It can be used in conjunction with polyols for the production of polyurethane products.
储存条件
Storage in original sealed Covestro containers.
Recommended storage temperature: 20 – 25 °C
Protect from moisture, heat and foreign material.
Covestro represents that, for a period of 6 months following the day of shipment as stated in the respective delivery documents, the product will meet the values set forth in section "specification" above provided that the product is stored in full compliance with the storage conditions and is otherwise handled appropriately. The lapse of this period does not necessarily mean that the product no longer meets specifications. However, prior to using said product, Covestro recommends to test such a product if it still meets the specifications. Covestro does not make any representation regarding the product after the period and Covestro shall not be responsible or liable in any way for the product failing to meet specifications after the period.
General information: The product is moisture-sensitive and should therefore always be stored in tightly sealed original containers. Prolonged storage at temperatures above 25 °C results in a reduction in quality as the product becomes increasingly cloudy due to the deposition of low-solubility sediment (dimer formation). If the recommended storage temperature is exceeded for a long period (especially if the temperature of the product rises to above
50 °C), or if the recommended shelf life is exceeded, a chemical reaction may take place. In addition to a reduction in the NCO content and an increase in viscosity, carbon dioxide in particular may be generated. The resultant increase in pressure may cause the container to swell or burst. Storage at above 25 °C considerably shortens the shelf life. Storage at below 20 °C results in crystallization. The product should under no circumstances be store ... text to long! (max 2000 characters)
样品
包装类型
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技术属性和数据表
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| NCO-content | MDI-01-01 | % by wt. | 29.0 - 30.0 |
| Hydrolysable chlorine | MDI-01-04 | ppm | max. 50 |
| Viscosity at 25 °C | MDI-01-02 | mPa*s | 20 - 50 |
| Hydrolysable chlorine | MDI-01-04 | ppm | max. 50 |
| Viscosity at 25 °C | MDI-01-02 | mPa*s | 20 - 50 |
| NCO-content | MDI-01-01 | % by wt. | 29.0 - 30.0 |
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
