Polyurethane Blend Polyols Foam System for Pipe Shells

Specifications

Polyurethane Blend Polyols Foam System for Pipe Shells
good flowability
high temperature-resistance performance

Products Introduction

High Density Polyurethane Blend Polyols Foam System  for Pipe Shells

 

DQT-502SW

 

 

 

 

 

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                 Hydroxyl value            mgKOH/g Dynamic viscosity(25°C)   mPa.s Density  (20°C)           g/ml Storage temperature            °C Storage stability             Month

Light yellow to brown yellow transparent liquid 300-450 800-1200 1.05-1.10 10-25 6

 

Technology and Reactivity Characteristics

Component temperature is 20°C, the actual value is varied according to pipe diameter and processing condition.  

	Manual mixing	High pressure machine
Ratio(POL/ISO) Rise time           s Gel time            s Tack free time      s Core Free density       kg/m3	1:1.0-1.1.20 20-40 100-150 ≥150 100-400	1:1.0-1.20 15-35 80-120 ≥120 100-400

 

Foam Performance

Molded foam density Closed-cell rate Thermal conductivity(15°C) Compressive strength Water absorption  High temperature-resistance Low temperature-resistance

GB 6343 GB 10799 GB 3399 GB/T8813 GB 8810

200-600kg/m3 ≥90%    ≤0.040mW/(m.K) ≥2Mpa ≤3(V/V)% ≤140°C ≤-60°C

The data provided above are typical value, which are tested by our company. For our company's products, the data included in the law do not have any constraints.