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  • 泡沫

Desmophen® 2450 X - for flexible slabstock foams

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材料类型

  • 聚酯多元醇

材料

泡沫
块状

一般特征

DESMOPHEN® 2450 X, based on glycerine as branching component, is a highly viscous, slightly yellowish liquid at ambient temperature. It is used to manufacture either semi-rigid polyurethane slabstock foams or foams with enhanced hardness.

储存条件

Recommended storage temperature (°C): 20 - 35
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Recommended temperature for processing (°C): 20 - 25.

样品

Moisture access must be prevented when taking product samples.

包装类型

无可用数据

技术属性和数据表

属性名称 测试方法 单位 数值
Density 25 °C DIN 51757 g/cm³ approx 1.12
Thermal conductivity at 20 °C DIN 52612-1 W <sup>.</sup> m<sup>-1</sup> <sup>.</sup> K<sup>-1</sup> 0.15
Flash point DIN 51758 °C 228
Specific heat capacity (Cp) at 25 °C DIN 51007 kJ/kg <sup>.</sup> K 1.83
Pour point DIN 3016 °C 2
TDI basic value pbw Desmodur® T on 100 pbw Desmophen® 2450 X 33
Appearance PET-03-04 colourless to pale liquid

属性名称 测试方法 单位 数值
Hydroxyl number DIN 53240-2 mg KOH/g 198 - 228
Acidity DIN EN ISO 2114 mg KOH/g ≤ 4.0
Hydroxyl number DIN 53240-2 mg KOH/g 198 - 228
Colour value (Hazen) DIN EN 1557 ≤ 200
Water content DIN 51777-1 % by wt. ≤ 0.10
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 420 - 620
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 420 - 620
Viscosity 25 °C DIN EN ISO 3219/B mPa*s 17,200 - 22,800
Colour value (Hazen) DIN EN 1557 ≤ 200
Viscosity 25 °C DIN EN ISO 3219/B mPa*s 17,200 - 22,800
Acidity DIN EN ISO 2114 mg KOH/g ≤ 4.0
Water content DIN 51777-1 % by wt. ≤ 0.10

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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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