TY - JOUR
T1 - Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures
AU - Yang, Fan
AU - Zhang, Xin
AU - Pan, Yong
AU - He, Hongpeng
AU - Ni, Yuqing
AU - Wang, Gan
AU - Jiang, Juncheng
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/2/1
Y1 - 2022/2/1
N2 - Ionic liquids (ILs) have a wide range of applications, owing to their negligible vapor pressure, high electrical conductivity, and low melting point. However, the thermal hazards of ILs and their mixtures are also non-negligible. In this study, the thermal hazards of various binary imidazolium ionic liquids (BIIL) mixtures were investigated. The effects of parent salt components and molar ratios on the thermal decomposition temperature (Td ) and flashpoint temperature (Tf ) are investigated. It is found that both Td and Tf increase as the proportion of highly thermally stable components in BIIL mixtures increases. Furthermore, the decomposition process of BIIL mixtures can be divided into two stages. For most molar ratios, the Tf of the BIIL mixtures is in the first stage of thermal decomposition. When the proportion of highly thermally stable components is relatively high, Tf is in the second stage of thermal decomposition. The flammability is attributed to the produced combustible gases during the thermal decomposition process. This work would be reasonably expected to provide some guidance for the safety design and application of IL mixtures for engineering.
AB - Ionic liquids (ILs) have a wide range of applications, owing to their negligible vapor pressure, high electrical conductivity, and low melting point. However, the thermal hazards of ILs and their mixtures are also non-negligible. In this study, the thermal hazards of various binary imidazolium ionic liquids (BIIL) mixtures were investigated. The effects of parent salt components and molar ratios on the thermal decomposition temperature (Td ) and flashpoint temperature (Tf ) are investigated. It is found that both Td and Tf increase as the proportion of highly thermally stable components in BIIL mixtures increases. Furthermore, the decomposition process of BIIL mixtures can be divided into two stages. For most molar ratios, the Tf of the BIIL mixtures is in the first stage of thermal decomposition. When the proportion of highly thermally stable components is relatively high, Tf is in the second stage of thermal decomposition. The flammability is attributed to the produced combustible gases during the thermal decomposition process. This work would be reasonably expected to provide some guidance for the safety design and application of IL mixtures for engineering.
KW - Binary imidazole ionic liquid mixtures
KW - Flash ignition temperature
KW - Thermal decomposition temperature
UR - http://www.scopus.com/inward/record.url?scp=85124996018&partnerID=8YFLogxK
U2 - 10.3390/molecules27041357
DO - 10.3390/molecules27041357
M3 - 文章
C2 - 35209146
AN - SCOPUS:85124996018
SN - 1420-3049
VL - 27
JO - Molecules
JF - Molecules
IS - 4
M1 - 1357
ER -