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(submitted by the website administration)
| Thermoplastic | ||||
| Polyimide (PI) | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 1.38 *10³ | kg/m³ | 86.1 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 3.1 | GPa | 440 | ksi |
| Tensile strength | 96 | MPa | 14000 | psi |
| Elongation | 7 | % | 7 | % |
| Flexural strength | 143 | MPa | 21000 | psi |
| Thermal expansion (20 ºC) | 43*10-6 | ºCˉ¹ | 24*10-6 | in/(in* ºF) |
| Thermal conductivity | 0.40 | W/(m*K) | 2.77 | BTU*in/(hr*ft²*ºF) |
| Glass transition temperature | 320 | ºC | 608 | ºF |
| Maximum work temperature | 380 | ºC | 720 | ºF |
| Dielectric constant | 3.5 | - | 3.5 | - |
Applications: aerospace components, high temperature resistant foams, chemical fibers, arc welding torches.