Results 71 to 80 of about 4,959,357 (94)
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ChemistrySelect, 2023
Abstract To explore novel hydrophilic groups of short‐chain fluorocarbon surfactants for aqueous film‐forming foam (AFFF), an original surfactant (S‐im) with a unique imidazolium structure was developed. The intermediate and S‐im were identified by FT‐IR and NMR, validating the mild synthesis route.
Hao Wang +6 more
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Abstract To explore novel hydrophilic groups of short‐chain fluorocarbon surfactants for aqueous film‐forming foam (AFFF), an original surfactant (S‐im) with a unique imidazolium structure was developed. The intermediate and S‐im were identified by FT‐IR and NMR, validating the mild synthesis route.
Hao Wang +6 more
openaire +1 more source
Chemical Papers, 2021
Aqueous film-forming foam extinguishing agent (AFFF) plays an important role in fighting pool fires, but the environmental problems caused by them are also increasingly apparent. The key component of traditional AFFF is C8 fluorocarbon surfactant, which is harmful to the ecological environment and human health.
Ya-Wen Yang +5 more
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Aqueous film-forming foam extinguishing agent (AFFF) plays an important role in fighting pool fires, but the environmental problems caused by them are also increasingly apparent. The key component of traditional AFFF is C8 fluorocarbon surfactant, which is harmful to the ecological environment and human health.
Ya-Wen Yang +5 more
openaire +1 more source
Chemical Engineering Science, 2021
Abstract The mixed dispersions of NPs, water-soluble polymer xanthan gum (XG), anionic hydrocarbon surfactant (sodium dodecyl sulfate [SDS]), and nonionic fluorocarbon surfactant (FS-50) were prepared by using an ultrasonic dispersion instrument to investigate the enhancement mechanism of NPs on the foam properties of surfactant.
Youjie Sheng +7 more
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Abstract The mixed dispersions of NPs, water-soluble polymer xanthan gum (XG), anionic hydrocarbon surfactant (sodium dodecyl sulfate [SDS]), and nonionic fluorocarbon surfactant (FS-50) were prepared by using an ultrasonic dispersion instrument to investigate the enhancement mechanism of NPs on the foam properties of surfactant.
Youjie Sheng +7 more
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Colloids and Surfaces A: Physicochemical and Engineering Aspects
Long Yan, Zhisheng Xu, Wenjun Zhao
exaly +2 more sources
Long Yan, Zhisheng Xu, Wenjun Zhao
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Colloids and Surfaces A: Physicochemical and Engineering Aspects
Yong Jin, Zhexian Mao
exaly +2 more sources
Yong Jin, Zhexian Mao
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Langmuir
In this study, a short-fluorocarbon zwitterionic surfactant (FC63) was synthesized by amidation and quaternization of perfluorohexane sulfonyl fluoride. A systematic study on the surface activity, aggregation behavior, and foaming performance of mixtures containing FC63 and an extended hydrocarbon surfactant (C12P6E3S) was conducted.
Shiteng Chang +5 more
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In this study, a short-fluorocarbon zwitterionic surfactant (FC63) was synthesized by amidation and quaternization of perfluorohexane sulfonyl fluoride. A systematic study on the surface activity, aggregation behavior, and foaming performance of mixtures containing FC63 and an extended hydrocarbon surfactant (C12P6E3S) was conducted.
Shiteng Chang +5 more
openaire +2 more sources
Acta Crystallographica Section C Structural Chemistry
The utilization of long-chain fluorocarbon surfactants is restricted due to environmental regulations, prompting a shift in the focus of research towards short-chain fluorocarbon surfactants. The present study employs molecular dynamics techniques to model the behaviour of potassium perfluorobutylsulfonate (PFBS) at the n-hexane/water interface, aiming
Ke, Chen +12 more
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The utilization of long-chain fluorocarbon surfactants is restricted due to environmental regulations, prompting a shift in the focus of research towards short-chain fluorocarbon surfactants. The present study employs molecular dynamics techniques to model the behaviour of potassium perfluorobutylsulfonate (PFBS) at the n-hexane/water interface, aiming
Ke, Chen +12 more
openaire +2 more sources
Langmuir
This article reports the synthesis of a novel sulfonated fluorocarbon surfactant (SFDC) containing double C6 perfluorinated branched short chains and compares its surface properties with a similar structured compound (SFDC-L) in solutions. The critical micelle concentration (CMC) and the corresponding surface tension (γCMC) of SFDC aqueous solution are
Mengyuan Peng +3 more
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This article reports the synthesis of a novel sulfonated fluorocarbon surfactant (SFDC) containing double C6 perfluorinated branched short chains and compares its surface properties with a similar structured compound (SFDC-L) in solutions. The critical micelle concentration (CMC) and the corresponding surface tension (γCMC) of SFDC aqueous solution are
Mengyuan Peng +3 more
openaire +2 more sources