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  • 粘合剂

Desmodur® ultra DA-L

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关于

材料类型

  • PIC
  • 交联剂
  • 脂肪族聚异氰酸酯
  • 亲水性聚异氰酸酯
  • 异氰酸酯
  • 聚异氰脲酯
  • 反应型体系
  • 聚异氰酸酯

材料

粘合剂
热活化, 防潮, 超低单体, 水性

一般特征

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate.
Desmodur® ultra DA-L is a liquid polyisocyanate, emulsifiable in aqueous polymer dispersions. Any occasional turbidity or precipitation visible is caused by very small amounts of processing aids. These have no adverse effect on the processing and final properties of the cured adhesives. It can be used as a crosslinking agent for largely pH-neutral aqueous polymer dispersions, such as polyurethane, polyvinylacetate, polyacrylate and synthetic rubber dispersions. Crosslinking raises the resistance of the bonds to heat, water, plasticizers and numerous solvents.

储存条件

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 30 °C.

- Protect from moisture, heat and foreign material.

General information: Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The containers must always be kept tightly closed. The access of water in all forms (moist air, solvents, moist containers) must be prevented, because the generation of carbon dioxide can lead to dangerous increases in pressure. Storage at higher temperatures will result in increase of color and viscosity.

样品

无可用数据

包装类型

60 l metal canister, contents 60 kg.

技术属性和数据表

属性名称 测试方法 单位 数值
NCO content M105-ISO 11909 % 20.0 ± 1
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 3,000 ± 600
Monomeric HDI M106-ISO 10283 % < 0.10

属性名称 测试方法 单位 数值
Flash point DIN EN 22719 °C 215
Density at 20 °C DIN 51757 g/ml approx. 1.16

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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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