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Development of Sustainable High Performance Epoxy Thermosets for Aerospace and Space Applications
Roxana Dinu1, Ugo Lafont2, Olivier Damiano3
1Université Côte d'Azur, Institut de Chimie de Nice, 06108 Nice, France.
Polymers
|December 23, 2022
Summary
This study introduces novel, high-performance thermosets synthesized from an aromatic tris epoxide, offering a sustainable, bisphenol A-free alternative for demanding applications. The resulting materials exhibit exceptional thermal stability and mechanical strength.
Area of Science:
- Polymer Chemistry
- Materials Science
- Sustainable Polymers
Background:
- Need for bisphenol A-free, high-performance thermosets in aerospace.
- Limitations of current thermosetting materials.
Purpose of the Study:
- To develop sustainable, high-performance thermosets.
- To utilize tris(4-hydroxyphenyl)methane triglycidyl ether (THPMTGE) for creating robust polymer networks.
Main Methods:
- Copolymerization of THPMTGE with anhydrides.
- Characterization using Dynamic Mechanical Analysis (DMA), Thermogravimetric Analysis (TGA), and Limit Oxygen Index (LOI).
Main Results:
- Achieved high crosslinked networks with gel content ~99.9%.
- Thermosets exhibited high glass transition temperatures (167-196 °C) and thermal stability (>340 °C).
- Demonstrated excellent mechanical properties (E' ~3-3.5 GPa, Young's modulus ~1.25-1.31 GPa) and good flame retardancy (LOI).
Conclusions:
- Successfully synthesized novel, high-performance, bisphenol A-free thermosets.
- The developed materials show significant potential for demanding applications like aerospace.
- The study highlights a sustainable route to advanced thermosetting polymers.
