Polyimide is a high-performance engineering polymer characterized by an imide functional group in its backbone, offering exceptional thermal stability and mechanical strength across a wide temperature range. It is widely used in aerospace, electronics, and automotive industries for applications requiring materials that maintain structural integrity at elevated temperatures, resist chemical attack, and provide excellent electrical insulation properties. Engineers select polyimide when standard plastics fail thermally or mechanically, particularly in demanding environments where weight savings and long-term reliability are critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 0.4748 | ksi | — | ||
Elongation at Break(εf) | 10.62 | - | — | ||
Flexural Strength (MOR)(σf) | 21.27 | ksi | — | ||
Hardness (Vickers)(HV) | 437 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 14.87 | ksi | — | ||
Young's Modulus(E) | 356 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 537.3 | °F | — | ||
Melting Point / Solidus(Tm) | 557.1 | °F | — | ||
Maximum Service Temperature(Tmax) | 878.2 | °F | — | ||
Thermal Conductivity(k) | 0.3832 | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.769 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.669 | - | — |