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The combustion behavior of epoxy-based multifunctional electrolytes
Fire and Materials ( IF 1.9 ) Pub Date : 2021-05-02 , DOI: 10.1002/fam.2967
Natasha Shirshova 1 , Thomas Rogaume 2 , Hussain Najmi 2 , Marc Poisson 2
Affiliation  

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.

中文翻译:

环氧基多功能电解质的燃烧行为

多功能或结构电解质的特点是离子电导率足够高以用于电化学装置和适​​合结构应用的机械性能。对基于双酚 A 二缩水甘油醚 (DGEBA) 的结构双连续电解质的燃烧行为提供了初步见解,该电解质使用反应诱导相分离和乳液模板技术合成。使用锥形量热计研究结构电解质的组成和外部热通量对配方行为的影响,其中使用 FTIR 分析测试过程中形成的气体。通过改变双连续电解质的离子传导部分的类型和数量来改变所研究的配方的组成。两种离子液体,4 ),以及基于乙二醇和氯化胆碱的低共熔溶剂 (DES)。获得的结果证实,点火时间、放热率 (HRR)、总质量损失以及测试期间释放的气体组成取决于配方的组成。发现添加液体电解质最多可将点火时间缩短 10%,将燃烧时间缩短 28% 至 60%,同时还能将 HRR 降低至少 34%。气体产物,例如 CO 2、CO、H 2 O、CH 4、C 2 H 2、N 2 O、NO 和 HCN,在所有含有 SO 2、NH 3气体的配方中均被检测到、HCl、C 2 H 4和NH 3仅适用于某些配方。
更新日期:2021-05-02
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