QH-8310 Low-Temperature Special Spray Rigid Foam Polyether (Suitable for Cold Storage and Low-Temperature Buildings)
1. Description
This product is a low-temperature special rigid foam polyether polyol, made from glycerol and propylene glycol via special polymerization. It has good low-temperature fluidity, can foam above -25℃, with excellent low-temperature stability and insulation, suitable for cold storage and low-temperature buildings.
2. Specification
| Item | Index | Test Method |
|---|
| Appearance (25℃) | Light yellow to yellow viscous liquid, no mechanical impurities | Visual inspection |
| Hydroxyl Value (mgKOH/g) | 420-480 | GB/T 12008.3-2009 |
| Viscosity (25℃, mPa·s) | 1500-2200 | GB/T 12008.7-2010 |
| Moisture (%) | ≤0.15 | GB/T 12008.6-2010 |
| Acid Value (mgKOH/g) | ≤0.10 | GB/T 12008.5-2010 |
| Functionality | 4-5 | Chemical titration |
| Foaming Density (kg/m³) | 35-45 | GB/T 6343-2009 |
| Operating Temperature Range | -25℃~60℃ | Simulated working condition test |
| Dimensional Stability (-20℃, 48h) | ≤1.0% | GB/T 8811-2015 |
3. Application
Core application scenarios:
- Cold Storage Insulation: Food/medical cold storage and cold chain warehouses, maintaining low temperature and reducing energy consumption.
- Low-Temperature Buildings: Civil/industrial buildings in northern severe cold areas, with stable performance.
- Low-Temperature Pipeline Insulation: Pipelines in cold storage, preventing frosting and heat loss.
- Extended Applications: Insulation of refrigerated containers and low-temperature transportation equipment.
- Construction Instructions: Mix with low-temperature special isocyanate at 1:1 (25℃), spray with high-pressure equipment. Construction temperature ≥-5℃; comply with GB 50404-2017.
4. Storage
- Storage Environment: Cool, ventilated (5-30℃), avoid freezing; with fire-fighting and explosion-proof facilities.
- Packaging: 200L sealed iron drums, marked with low-temperature warnings.
- Shelf Life: 6 months; thaw and test if frozen.
- Transportation: Take insulation measures, handle with care, no mixing with oxidants/acid.
- Others: Wear protective equipment; rinse with water if in contact with skin; dispose of waste properly.