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Desmodur® T 65 N

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关于

材料类型

  • TDI

材料

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一般特征

2,4- and 2,6-toluene diisocyanate (TDI) in the ratio 67 : 33.
As a raw material for polyurethane coatings and adhesives.

储存条件

- Storage in original sealed Covestro container.

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Recommended storage temperature: 18 - 40 °C.

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Protect from moisture, heat and foreign material.

General information: The product is sensitive to moisture and heat. It should be protected against contact with atmospheric moisture. Prolonged storage at elevated temperatures may result in discoloration or in the formation of insoluble deposits. The product crystallizes partially or fully at temperatures below 5 °C. However, careful melting at up to 50 °C will reliquify the product without any detrimental effect on its quality. A contact temperature of 80 °C must not be exceeded. The reliquified product must be homogenized as crystallization causes a shift in the isomer ratio between the crystalline and the still liquid phases. Opened containers must be resealed after removing product. If stored for long periods, the product should be overlaid with nitrogen. The product reacts with water to release carbon dioxide. During storage, transfer and handling of the product, contact with water in any form (damp containers, solvents containing water, moist air) must be prevented as the generation of carbon dioxide may result in a dangerous increase in pressure. The polyureas which are formed at the same time may result in turbidity. They may also cause blockages and breakdowns in filters, pumps and pipes.

样品

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包装类型

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技术属性和数据表

属性名称 测试方法 单位 数值
Content of 2,4'-TDI TDI-01-04 % 67 ± 1
Hydrolysable chlorine TDI-01-03 mg/kg ≤ 100
Purity TDI-01-01 % ≥ 99.5
Acidity TDI-01-02 mg/kg ≤ 40

属性名称 测试方法 单位 数值
Density at 25 °C DIN 51 757 g/ml approx. 1.22
Solidification point DIN 53 175 °C approx. 5
Viscosity at 25 °C DIN 53 015 mPa*s approx. 3
Boiling point (1 bar) °C approx. 250
Isocyanate content (by degree of purity method) % ≥ 48
Flash point DIN EN ISO 2719 °C approx. 130

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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
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