Publication Date:
2019
Description:
〈p〉Publication date: 15 December 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Journal of Hazardous Materials, Volume 380〈/p〉
〈p〉Author(s): Junchao Zhao, Zhitao Yin, Muhammad Usman Shahid, Haoran Xing, Xudong Cheng, Yangyang Fu, Song Lu〈/p〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉The re-ignition of pool fires is a common hazard phenomenon in fire extinguishing. Dry chemicals with oleophobicity may solve this problem because powders can float on the oil surface and prevent evaporation of fuel pool. In this research, MAPP (modified ammonium polyphosphate) with superhydrophobicity, oleophobicity, and higher chemical activity is prepared which can quickly quench pool fires and provide longer protection. The activation indexes of MAPP for water, diesel, aviation kerosene and gasoline are 98.5%, 87.4%, 98.7% and 98.4%, respectively. Lower activation energy of MAPP means that it will show higher chemical activity in fire. The fire-extinguishing performance of MAPP is much higher than that of Commercial UDCA (ultra-fine dry chemical agent) during fire experiments. After extinguished by MAPP, the fuel pool is hard to be re-ignited. The significance of this study is to propose a new strategy for preventing the re-ignition of pool fires.〈/p〉〈/div〉
〈h5〉Graphical abstract〈/h5〉
〈div〉〈p〉〈figure〉〈img src="https://ars.els-cdn.com/content/image/1-s2.0-S0304389419305497-ga1.jpg" width="492" alt="Graphical abstract for this article" title=""〉〈/figure〉〈/p〉〈/div〉
Print ISSN:
0304-3894
Electronic ISSN:
1873-3336
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
,
Technology
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