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Temperature-Resistance Polyurethane Blend Polyols for Pipeli

[Description: ]

This product is a type of blend polyols which is specially researched for rigid PUF to produce thermal insulation pipes. It is widely used in steam pipes liquefied nature gas running pipes oil pipes and other fields. The characteristics are as follows

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Temperature-Resistance Polyurethane Blend Polyols for Pipeline
Products Introduction
This product is a type of blend polyols which is specially researched for rigid PUF to produce thermal insulation pipes. It is widely used in steam pipes liquefied nature gas running pipes oil pipes and other fields. The characteristics are as follows:
(1)good flowability by regulating formula to suit different pipe diameters.
(2)high temperature-resistance performancelong standing in 150℃
(3)excellent low temperature dimensional stability

Physical Property

Appearance Light yellow to brown yellow transparent liquid 300-450
Hydroxyl value mgKOH/g 800-1200
Dynamic viscosity(25℃)   mPa.s 1.10-1.16
Density (20℃)g/ml 10-25
Storage temperature ℃ 6
Storage stability Month  

Technology and Reactivity Characteristics

Component temperature is 20℃ the actual value is varied according to pipe diameter and processing condition.
  Manual mixing High pressure machine
Ratio(POL/ISO) 1:1.0-1.1.60 1:1.0-1.60
Rise times 20-40 15-35
Gel times 80-200 80-160
Tack free times ≥150 ≥150
Free density kg/m3 25-40 24-38

Foam Performance

Molded foam density GB 6343 40-80kg/m3
Closed-cell rate GB 10799 ≥90%
Thermal conductivity(15℃) GB 3399 ≤33mW/(m.K)
Compressive strength GB/T8813 ≥200kPa
Water absorption GB 8810 ≤3(V/V)%
Dimensional stability(24h,100℃) GB/T8811 ≤1.5%
(24h,-30℃)   ≤1.0%
High temperature-resistance   ≤140℃

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