Flammability and Thermal Analysis Characterization of Imidazolium-Based Ionic Liquids
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- 作者：Douglas M. Fox ; Jeffrey W. Gilman ; Alexander B. Morgan ; John R. Shields ; Paul H. Maupin ; Richard E. Lyon ; Hugh C. De Long ; Paul C. Trulove
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2008
- 出版时间：August 20, 2008
- 年：2008
- 卷：47
- 期：16
- 页码：6327-6332
- 全文大小：267K
- 年卷期：v.47,no.16(August 20, 2008)
- ISSN：1520-5045
文摘
Room-temperature ionic liquids have been identified as nonvolatile, nonflammable compounds with a wide range of applications. However, numerous thermal studies have identified volatile decomposition products and a source for fuel, raising questions regarding the fire hazard of ionic liquids. To address these questions, the flammability properties of imidazolium-based ionic liquids have been measured using cone calorimetry and microscale combustion calorimetry. The combustion data are compared to flashpoints estimated from thermal gravimetric analysis data. The resulting flammability properties of ionic liquids are comparable to aliphatic hydrocarbon plastics (polyethylene and polyamide) and lower than high boiling organic solvents (ethyl lactate and dimethyl sulfoxide). Several structure−property relationships are observed, including alkyl chain length and anion type.