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Bayhydur® 304

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关于

材料类型

  • 亲水性聚异氰酸酯

材料

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一般特征

Bayhydur 304 is a hydrophilically modified, aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
As the hardener/binder component for high-quality waterborne polymer dispersions and as an additive to improve the property level of waterborne coating and adhesive systems.

储存条件

Bayhydur 304 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. 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. Recommended storage temperature is 0º-30ºC.

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
Hazen color value ≤ 60
Viscosity at 23oC mPa∙s 2,500 - 5,500
Monomeric HDI % < 0.15
NCO content % 17.7 - 18.7

属性名称 测试方法 单位 数值
Equivalent weight approx. 230
Flash point °C 226
Density g/ml approx. 1.16

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技术数据表
安全数据表
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