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AR B301F
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AR B301

AR B301 is a compound which consists of polyether polyols, surfactants, catalysts, HCFC-141b and flame retardant in a special ratio whichused in the manufacture of PUR block foam. products . And isocyanate reaction by the formation of the foam has uniform foam cell , low thermal conductivity, thermal insulation performance is good, flame retardant performance is good, low temperature no shrinking crack etc. Widely used in the process of all kinds of insulation work such as: building external wall, cold storage, tanks, large pipes etc.

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描述

 

Liquid Components Properties

Property Blend Polyols Isocyanate
Colour Light yellow to brown liquid Brown
Hydroxyl value         mgKOH/g 250-350 /
Viscosity @ 25°C           mPa.S 200-500 200-250
Specific gravity  @ 20°C     g/ml 1.12-1.18 1.20-1.25
Storage temperature            ℃ 10-25 10-25
Shelf life 6 months 12 months

Technical Condition

Blend Polyols: Isocyanate MDI 100:110-130
Raw material temperature     ℃ 20-25
Moulding temperature       ℃ 35-45

Technology and Reactivity  (the exact value varies depending on processing conditions）

Items Cup Test High Pressure machine
Cream time    s 30-45 25-35
Gel time      s 180-240 140-200
Free density  kg/m3 27-32 26-31

Foam Performance

Moulding density ASTM D1622 ≥42kg/m3
Close-cell rate ASTM D2856 ≥90%
Thermal conductivity（15℃） ASTM C518 ≤22mW/(m.K)
Compression strength ASTM D 1621 ≥140kPa
Dimensional stability  24h  -20℃

24h  100℃

 ASTM D2126 ≤1%

≤1.5%
Flame Resistance DIN 4102 B3

Package

220kg/drum or 1000kg/IBC.

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