Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels

Abstract A new method for studying the two-dimensional spreading properties and sealing characteristics of surfactant solution on oil surface was provided. The actual spreading situation of the C4-Br/oil systems in axisymmetric geometry was observed directly using HD camera for the first time and th...

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Autores principales:	Xuhong Jia, Yuzhen Luo, Rui Huang, Xinhua Zhu, Yuqiang Zhang, Quanyi Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f39f26fb498e4729a819973f0d3d1db4
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spelling	oai:doaj.org-article:f39f26fb498e4729a819973f0d3d1db42021-12-02T14:12:48ZTwo-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels10.1038/s41598-020-80932-82045-2322https://doaj.org/article/f39f26fb498e4729a819973f0d3d1db42021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80932-8https://doaj.org/toc/2045-2322Abstract A new method for studying the two-dimensional spreading properties and sealing characteristics of surfactant solution on oil surface was provided. The actual spreading situation of the C4-Br/oil systems in axisymmetric geometry was observed directly using HD camera for the first time and the results showed that the aqueous film expanded outwards in a circle with the guiding device as the center. Meanwhile, the relation between spreading radius and time was investigated and evaluated using the model for surface-tension-viscous regime. The root-mean-square deviation (RMSD) values obtained from the correlation for all of the systems we studied below 1.64, indicating a good agreement between the experimental and theoretical values. The results of sealing experiments showed that the aqueous film could absolutely seal the oil surface for 27–65 s and the sealing effect would be lost after 216–742 s for different systems. The stronger the volatility was, the shorter the sealing time was. Additionally, the volume percentage of oil vapor with film was always lower than that without film even when the evaporation was saturated. These findings were of great significance to guide the preparation of efficient AFFF.Xuhong JiaYuzhen LuoRui HuangXinhua ZhuYuqiang ZhangQuanyi LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xuhong Jia Yuzhen Luo Rui Huang Xinhua Zhu Yuqiang Zhang Quanyi Liu Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
description	Abstract A new method for studying the two-dimensional spreading properties and sealing characteristics of surfactant solution on oil surface was provided. The actual spreading situation of the C4-Br/oil systems in axisymmetric geometry was observed directly using HD camera for the first time and the results showed that the aqueous film expanded outwards in a circle with the guiding device as the center. Meanwhile, the relation between spreading radius and time was investigated and evaluated using the model for surface-tension-viscous regime. The root-mean-square deviation (RMSD) values obtained from the correlation for all of the systems we studied below 1.64, indicating a good agreement between the experimental and theoretical values. The results of sealing experiments showed that the aqueous film could absolutely seal the oil surface for 27–65 s and the sealing effect would be lost after 216–742 s for different systems. The stronger the volatility was, the shorter the sealing time was. Additionally, the volume percentage of oil vapor with film was always lower than that without film even when the evaporation was saturated. These findings were of great significance to guide the preparation of efficient AFFF.
format	article
author	Xuhong Jia Yuzhen Luo Rui Huang Xinhua Zhu Yuqiang Zhang Quanyi Liu
author_facet	Xuhong Jia Yuzhen Luo Rui Huang Xinhua Zhu Yuqiang Zhang Quanyi Liu
author_sort	Xuhong Jia
title	Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
title_short	Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
title_full	Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
title_fullStr	Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
title_full_unstemmed	Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
title_sort	two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f39f26fb498e4729a819973f0d3d1db4
work_keys_str_mv	AT xuhongjia twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels AT yuzhenluo twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels AT ruihuang twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels AT xinhuazhu twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels AT yuqiangzhang twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels AT quanyiliu twodimensionalspreadingpropertiesandsealingcharacteristicsoffluorocarbonsurfactantsonseveraltypicalhydrocarbonfuels
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Two-dimensional spreading properties and sealing characteristics of fluorocarbon surfactants on several typical hydrocarbon fuels

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