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The combustion behavior of epoxy‐based multifunctional electrolytes

Shirshova, Natasha; Rogaume, Thomas; Najmi, Hussain; Poisson, Marc

The combustion behavior of epoxy‐based multifunctional electrolytes Thumbnail


Thomas Rogaume

Hussain Najmi

Marc Poisson


Multifunctional or structural electrolytes are characterized by ionic conductivity high enough to be used in the electrochemical devices and mechanical performance suitable for the structural applications. Preliminary insights are provided into the combustion behavior of structural bi‐continuous electrolytes based on bisphenol A diglycidyl ether (DGEBA), synthesized using the techniques of reaction induced phase separation and emulsion templating. The effect of the composition of the structural electrolytes and external heat flux on the behavior of the formulations were studied using a cone calorimeter with gases formed during testing analyzed using FTIR. The composition of the formulations investigated was changed by varying the type and amount of the ion conductive part of the bi‐continuous electrolyte. Two ionic liquids, 1‐ethyl‐3‐methylimidazolium bis(fluorosulfonyl)imide (EMIM‐TFSI) and 1‐butyl‐3‐methylimidazolium tetrafluoroborate (BMIM‐BF4), as well as a deep eutectic solvent (DES) based on ethylene glycol and choline chloride, were used. The results obtained confirm that time to ignition, heat release rate (HRR), total mass loss, as well as the composition of the gases released during tests depend on the composition of the formulations. Addition of liquid electrolyte is found to reduce the time to ignition by up to 10% and the burning time by between 28% and 60% with the added benefit of reducing the HRR by at least 34%. Gaseous products such as CO2, CO, H2O, CH4, C2H2, N2O, NO, and HCN were detected for all formulations with the gases SO2, NH3, HCl, C2H4, and NH3 found to be for certain formulations only.

Journal Article Type Article
Acceptance Date Mar 11, 2021
Online Publication Date May 2, 2021
Publication Date Jan 2, 2022
Deposit Date May 4, 2021
Publicly Available Date May 4, 2021
Journal Fire and Materials
Print ISSN 0308-0501
Electronic ISSN 1099-1018
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 46
Issue 1
Pages 192-204
Public URL


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Copyright Statement
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2021 The Authors. Fire and Materials published by John Wiley & Sons Ltd

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