DGEBA/DDS is a high-performance aerospace-grade epoxy thermoset formed by reacting diglycidyl ether of bisphenol-A (DGEBA) with diaminodiphenyl sulfone (DDS) hardener, delivering superior thermal stability and mechanical strength compared to standard epoxy formulations. This system is the workhorse matrix resin in primary structural composites for commercial aircraft, military platforms, and space vehicles, prized for its ability to maintain performance at elevated service temperatures while offering excellent adhesion to carbon and glass fibers. Engineers select DGEBA/DDS over faster-curing or lower-cost alternatives when thermal durability, damage tolerance, and long-term structural reliability under sustained loads are mission-critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Tensile Strength(σUTS) | 85.00 | MPa | — | ||
Young's Modulus(E) | 3.100 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 473 | K | — | ||
Thermal Conductivity(k) | 0.2000 | W/(m·K) | — | ||
Coefficient of Thermal Expansion(α (CTE)) | 0.0000600 | 1/K | — |