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High Density Polyurethane Blend Polyols for Pipe Shells

[Description: ]

This product is a type of blend polyols with 100% water as blowing agent which is specially researched for rigid PUF to produce thermal insulation pipe shells. It is mainly used in liquefied nature gas running pipes oil pipes and other fields. The characteristics are as follows

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High Density Polyurethane Blend Polyols for Pipe Shells

Products Introduction

This product is a type of blend polyols with 100% water as blowing agent which is specially researched for rigid PUF to produce thermal insulation pipe shells. It is mainly used in 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)excellent foam mechanical properties
(3)excellent high/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 1.05-1.10
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) 1:1.0-1.1.20 1:1.0-1.20
Rise times 20-40

 

15-35

 

Gel times 100-150 ≥120
Gel times 100-150 ≥120
Core Free density kg/m3 100-400 100-400

Foam Performance

Molded foam density GB 6343 200-600kg/m3
Closed-cell rate GB 10799 ≥90%
Thermal conductivity(15℃) GB 3399 ≤0.040mW/(m.K)
Compressive strength GB/T8813 ≥2Mpa
Water absorption GB 8810 ≤3(V/V)%
High temperature-resistance   ≤140℃
Low temperature-resistance   ≤-60℃

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