Polyurethane Blend Polyols Foam System for Pipeline Insulation

Specifications

Polyurethane blend polyols foam system for pipeline insulation
good flowability
high temperature-resistance performance

Polyurethane blend polyols foam system  for pipeline insulation

DQT-502

 

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 performance,long standing in 120°C

(3)excellent 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 300-450 200-500 1.10-1.16 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 Free density       kg/m3	1:1.0-1.1.60 20-40 80-200 ≥150 25-40	1:1.0-1.60 15-35 80-160 ≥150 24-38

 

Foam Performance

 

Molded foam density Closed-cell rate Thermal conductivity(15°C) Compressive strength Water absorption Dimensional stability (24h,100°C)  (24h,-30°C)  High temperature-resistance

GB 6343 GB 10799 GB 3399 GB/T8813 GB 8810 GB/T8811

40-80kg/m3 ≥90% ≤33mW/(m.K) ≥200kPa ≤3(V/V)% ≤1.5% ≤1.0% ≤140°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.