| Customization: | Available |
|---|---|
| Formula: | Ho[CH2CH2o]Nh |
| Material: | Polyurethanes/PU |
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Introuction
Pipe 301 is a blend polyol that uses water as a blowing agent, specifically developed for rigid PUF to manufacture thermal insulation pipes. It is commonly used in steam pipes, liquefied natual gas pipelines, oil pipes, and various other applications. The key features include:
Excellent flowability
High temperature resistance, capable of withstanding up to 150°C for extended periods
Superior low-temperature dimensional stability
| Property | Value |
|---|---|
| Appearance | Light yellow to brown yellow transparent liquid |
| Dynamic Viscosity (25°C) | 700-1000 mPa.s |
| Density (20°C) | 1.10-1.16 g/ml |
| Storage Temperature | 10-25°C |
| Storage Stability | 6 months |
Technology and Reactivity Characteristics
Component temperature is 20°C. The actual value varies depending on pipe diameter and processing conditions.
| Item | Manual Mixing | High Pressure Machine |
|---|---|---|
| Ratio (POL/ISO) | 1:1.0-1.1.60 | 1:1.0-1.60 |
| Cream Time | 20-40 s | 15-35 s |
| Gel Time | 80-200 s | 80-160 s |
| Tack Free Time | ≥150 s | ≥150 s |
| Free Density | 25-40 kg/m³ | 24-38 kg/m³ |
Foam Performance
| Items | Test Method | Index |
|---|---|---|
| Molded Foam Density | GB 6343 | 40-80kg/m³ |
| Closed-cell Rate | GB 10799 | ≥90% |
| Thermal Conductivity (15°C) | GB 3399 | ≤28mW/(m·K) |
| Compressive Strength | GB/T8813 | ≥200kPa |
| Water Absorption | GB 8810 | ≤3 (V/V) % |
| Dimensional Stability (24h, 100°C) | GB/T8811 | ≤1.5% |
| Dimensional Stability (24h, -30°C) | GB/T8811 | ≤1.0% |
| High Temperature Resistance | - | ≤140°C |
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