• 粘合剂

Desmodur® T 80

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关于

材料类型

  • 异氰酸酯
  • TDI

材料

粘合剂
无溶剂

一般特征

2,4- and 2,6-toluene diisocyanate (TDI) in the ratio 80 : 20.
As a raw material for polyurethane coatings and adhesives.

储存条件

- Storage in original sealed Covestro container.

- Recommended storage temperature: 18 - 40°C.

- 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. Higher storage temperatures for prolonged periods may result in discoloration or the formation of insoluble deposits. The product crystallizes partially or fully at temperatures below approx. 15 °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, aqueous solvents, 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

命名属性特征

属性名称 测试方法 单位 数值
Purity TDI-01-01 % ≥ 99.5
Acidity TDI-01-02 mg/kg ≤ 40
Content of 2,4-TDI TDI-01-04 % 80.5 ± 1
Hydrolysable chlorine TDI-01-03 mg/kg ≤ 100

命名属性规范

属性名称 测试方法 单位 数值
Solidification point DIN 53 175 °C approx. 14
Viscosity at 25 °C DIN 53 015 mPa*s approx. 3
Flash point DIN EN ISO 2719 °C approx. 130
Boiling point (1 bar) °C approx. 250
Density at 25 °C DIN 51 757 g/ml approx. 1.22
Isocyanate content (by degree of purity method) % ≥ 48

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技术数据表
安全数据表
无可用直接下载,请访问 www.productsafetyfirst.covestro.com
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