010203
Foam series in construction field
Polyimide foam is superior to similar heat insulation and noise reduction materials in the market in all aspects of performance, and has stable performance, no dust, no slag, acid, alkali and oil resistance, radiation resistance, UV resistance, and long service life. It is currently the most high-performance insulation, noise reduction, and flame retardant material.
Technical parameter
| Performance | Polyimide foam | BMI foam | PU foam | Phenolic foam | Remarks |
| Density | 6.0-200 | ≤60 | 40-80 | 60-100 | kg•m-3 |
| Thermal conductivity | less than 0.04 | less than 0.04 | less than 0.036 | less than 0.043 | W•m-1•K-1 |
| Impact strength | Flexible | 37 | 12 | Not resistant to impact | KJ•m2 |
| Limiting oxygen index | 51 | 32 | 22 | 55 | Oxygen content |
| Maximum smoke density | 2 | 55 | 117 | 8 | non-flame |
| Maximum operating temperature | 350 | 150 | 120 | 180 | degrees Celsius |
| Technical Parameter | Index | Remarks |
| density（kg/m3） | 6.0-15.0 | GB/T 6343-1995 |
| compressive strength(kPa) | 40-60 | GB/T 8813—1988 |
| compression deformation（50%）/% | ＜30 | GB/T 6669—2001 |
| thermal conductivity coefficient(W·m-1·k-1) | ＜0.037 | GB/T 3399－1982 |
| extreme oxygen index(%) | ﹥45 | / |
| smoke density(%) | ＜30 | GB8323 |
| opening rate(%) | 99 | GB/T 10799—1989 |
| water absorption performance（%） | 8 | QB/T 2669-2004 |
| noise reduction coefficient（125-4000Hz） | 0.54（10mm) | Standing wave tube method |
| acid resistance | Soak in 20% dilute hydrochloric acid for one week without significant changes | / |
| alkali resistance performance | Soak in 20% sodium hydroxide for one week without significant changes | / |
| Oil resistance performance | 93 # gasoline soaked for one week without significant changes | / |
| Sustainable usage temperature(℃) | 300℃ | / |
