PTMT vs. PEI
Both PTMT and PEI are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.
For each property being compared, the top bar is PTMT and the bottom bar is PEI.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 | |
| 1.3 to 1.5 |
| Dielectric Strength (Breakdown Potential), kV/mm | 17 | |
| 30 to 33 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 50 | |
| 200 to 210 |
| Impact Strength: Notched Izod, J/m | 53 | |
| 55 to 110 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 170 |
| Strength to Weight: Axial, points | 12 | |
| 24 to 30 |
| Strength to Weight: Bending, points | 25 | |
| 40 to 44 |
| Tensile Strength: Ultimate (UTS), MPa | 56 | |
| 110 to 160 |