Thermal Degradation Kinetics of High Temperature Polymers for Aeronautic Cables Insulation

G. Teyssedre (1) , Sorin Dinculescu (2) , Séverine Le Roy (1) , Thomas Hahner (3) , Clara Lagomarsini (3) , Patrick Rybski (3)

1 LAPLACE-DSF - Diélectriques Solides et Fiabilité
2 LAPLACE-MDCE - Matériaux Diélectriques dans la Conversion d’Energie
3 NEXANS - Nexans France

The perspective of increasing on board power on aircrafts leads to reconsider cable technologies, among which insulation processing. In this work, the thermal stability of three materials, Polyimide, Polytetrafluoroethylene and perfluoroalkoxy (PFA) is investigated. Based on a multi-step degradation model applied to thermogravimetric analysis curves, isothermal degradation curves are predicted. Outstanding thermal stability is anticipated for PFA on a chemical standpoint. With the advantage of being a extrusion-processable polymer, PFA constitutes therefore an excellent candidate for high performance cables with extruded insulation.

Mots clés: high temperature insulation; aeronautic applications; thermal degradation; fluorinated polymers

Domaines: Matériaux

G. Teyssedre, Sorin Dinculescu, Séverine Le Roy, Thomas Hahner, Clara Lagomarsini, et al.. Thermal Degradation Kinetics of High Temperature Polymers for Aeronautic Cables Insulation. 2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM), Jul 2021, Johor Bahru, Malaysia. pp.294-297, ⟨10.1109/ICPADM49635.2021.9494003⟩. ⟨hal-03326448⟩