QH-450K High-End Flame-Retardant Building Rigid Foam Polyether (Suitable for Buildings with High Fire Protection Requirements)
1. Description
This product is a high-end flame-retardant rigid foam polyether polyol, made from sorbitol and amines with flame-retardant additives. It is a light yellow viscous liquid, with excellent flame retardancy (GB 8624-2012 Class B1), high closed-cell rate and waterproof performance, suitable for high fire-protection requirement buildings.
2. Specification
| Item | Index | Test Method |
|---|
| Appearance (25℃) | Light yellow viscous liquid, no mechanical impurities | Visual inspection |
| Hydroxyl Value (mgKOH/g) | 400-450 | GB/T 12008.3-2009 |
| Viscosity (25℃, mPa·s) | 2200-3000 | 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 | 5-6 | Chemical titration |
| Foaming Density (kg/m³) | 32-45 | GB/T 6343-2009 |
| Flame Retardant Grade | Class B1 (Flame-Retardant) | GB 8624-2012 |
| Closed-Cell Rate (%) | ≥90 | GB/T 10802-2006 |
3. Application
Core application scenarios:
- High-Rise Buildings: High-rise residential buildings and offices, delaying fire spread and ensuring energy conservation.
- Key Projects: Airports, hospitals and schools, meeting strict fire protection and insulation requirements.
- Special Industrial Buildings: Chemical plants and dangerous goods warehouses, with flame retardancy and corrosion resistance.
- Extended Applications: Production of high flame-retardant polyurethane insulation boards.
- Construction Instructions: Mix with special flame-retardant isocyanate at 1:1 (25℃), spray with high-pressure equipment. Comply with GB 50404-2017; set no-fire area on site.
4. Storage
- Storage Environment: Special cool warehouse (5-30℃), away from fire, with fire-fighting and explosion-proof facilities.
- Packaging: 200L corrosion-resistant sealed drums, marked with flame-retardant warnings.
- Shelf Life: 6 months; test flame retardancy and hydroxyl value after expiration.
- Transportation: Dangerous goods qualified vehicle, no mixing with flammables/oxidants.
- Others: Wear protective equipment; rinse with water if in contact with skin/eyes; dispose of waste properly.