| Customization: | Available |
|---|---|
| Formula: | Ho[CH2CH2o]Nh |
| Material: | Polyurethanes/PU |
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Introuction
This product is a blend polyol specifically developed for rigid PUF to create thermal insulation pipes. It is extensively used in steam pipes, liquefied naturl gas pipelines, oil pipes, and other applications. Its key characteristics include:
Excellent flowability, with the formula adjustable to suit different pipe diameters.
High temperature resistance, capable of withstanding up to 120°C for extended periods.
Superior low-temperature dimensional stability.
Physical Properties
| Property | Value/Range |
|---|---|
| Appearance | Light yellow to brown yellow transparent liquid |
| Hydroxyl value (mgKOH/g) | 300-450 |
| Dynamic viscosity (25ºC, mPa·s) | 200-500 |
| Density (20ºC, g/ml) | 1.10-1.16 |
| Storage temperature (ºC) | 10-25 |
| Storage stability (months) | 6 |
Component temperature is 20ºC, the actual value is varied according to pipe diameter and processing condition.
| Property | Manual mixing | High pressure machine |
|---|---|---|
| Ratio (POL/ISO) | 1:1.0-1.1.60 | 1:1.0-1.60 |
| Rise time (s) | 20-40 | 15-35 |
| Gel time (s) | 80-200 | 80-160 |
| Tack free time (s) | ≥150 | ≥150 |
| Free density (kg/m³) | 25-40 | 24-38 |
| Property | Standard | Value/Range |
|---|---|---|
| Molded foam density | GB 6343 | 40-80 kg/m³ |
| Closed-cell rate | GB 10799 | ≥90% |
| Thermal conductivity (15ºC, mW/(m·K)) | GB 3399 | ≤33 |
| Compressive strength | GB/T 8813 | ≥200 kPa |
| Water absorption | GB 8810 | ≤3 (V/V) % |
| Dimensional stability (24h, 100ºC) | GB/T 8811 | ≤1.5% |
| Dimensional stability (24h, -30ºC) | GB/T 8811 | ≤1.0% |
| High temperature-resistance | - | ≤140ºC |
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