PMI is a kind of cross-linked rigid foam material based on polymethacrylimide, its main molecular chain is C-C chain, the molecular side chain contains the structure of imide, high performance matrix material and uniform dense pore structure gives PMI foam excellent structural stability and excellent mechanical properties, PMI foam is the highest performance of the core material base on same density.
PMI series foams are characterized by high specific strength, specific modulus, high temperature resistance, fatigue resistance, low dielectric and other performance characteristics. It is widely used in aerospace, military radar, high-speed rail, ship and yacht, automobile manufacturing, sports equipment, medical equipment, audio and acoustic products.
Product Performance
| Type | Standard | Unit | Result | T40 | T50 | T80 | T100 | T130 | F50 | F80 | F100 | F130 |
| Density | ISO 845 | kg/m³ | Average Value | 40 | 50 | 80 | 100 | 130 | 50 | 80 | 100 | 130 |
| Range | 36-44 | 45-55 | 72-88 | 90-110 | 118-142 | 45-55 | 72-88 | 90-110 | 118-142 | |||
| Compress Strength | ISO 844:2006 | MPa | Average Value | 0.86 | 1.2 | 1.85 | 3.5 | 5.2 | 0.75 | 1.72 | 3 | 4.5 |
| Shear Strength | ASTM C273:2012 | MPa | Average Value | 0.68 | 0.87 | 1.8 | 4.2 | 6.8 | 0.7 | 1.6 | 2 | 3.4 |
| Shear E-Modulus | ASTM C273:2012 | MPa | Average Value | 18 | 27 | 50 | 72 | 118 | 20 | 35 | 45 | 80 |
| Tensile Strength | ASTM D638 | MPa | Average Value | 1.5 | 1.78 | 2.8 | 3.6 | 5 | 1.7 | 2.4 | 3.3 | 4.8 |
| Tensile E-Moldulus | ASTM D638 | MPa | Average Value | 53 | 78 | 110 | 175 | 223 | 65 | 96 | 140 | 190 |
Application
