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 and other fields. The characteristics are as follows:
（1）good flowability, by regulating formula to suit different pipe diameters.
（2）good temperature-resistance property, long standing in 150℃
（3）good low temperature dimensional stability。
Physical Property
|
Appearance
Hydroxyl value mgKOH/g
Dynamic viscosity（25℃） mPa.s
Density （20℃） g/ml
Storage temperature ℃
Storage stability Month |
Light yellow to brown yellow transparent liquid 300-450
100-250
1.10-1.16
10-25
6 |
Technology and Reactivity Characteristics
The temperature of component is 20℃, 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 |
1:1.0-1.1.10
20-40
80-200
≥150
22-40 |
1:1.0-1.10
15-35
80-160
≥150
22-38 |
Foam Performance
|
Foam density by moulding
Closed-cell rate
Thermal conductivity(15℃)
Compressive strength
Water absorption
Dimensional stability
(24h，100℃)
(24h，-30℃)
High temperature-resistance |
GB 6343
GB 10799
GB 3399
GB/T8813
GB 8810
GB/T8811 |
60-80kg/m3
≥90%
≤33mW/(m.K)
≥300kPa
≤3（V/V）%
≤1.5%
≤1.0%
≤150℃ |
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.
