Results 1 to 10 of about 4,904,092 (95)

Synthesis of short-chain fluorocarbon surfactant: Enhancing surface and foam performance through hydrocarbon surfactants compounding

Case Studies in Thermal Engineering
The research of short-chain fluorocarbon surfactants is crucial in effectively and environmentally extinguishing petrochemical fires. In this study, a short-chain fluorocarbon surfactant named 2H,2H-perfluorooctanoic acid sodium salt (PFH-CA) was ...
Wenjun Zhao, Zhisheng Xu, Long Yan, Guoqing Niu   +3 more
doaj   +5 more sources

Strong synergistic effect of cationic hydrocarbon surfactant and novel nonionic tri-block short-chain fluorocarbon surfactant mixtures on surface activity, wettability and solubilization [PDF]

Journal of Leather Science and Engineering, 2021
Mixing hydrocarbon surfactants with fluorocarbon surfactants is still an important strategy to improve the economic benefits and performances of fluorocarbon surfactants and expand their range of application.
Yutang Zhou, Yong Jin, Yichao Shen, Liangjie Shi, Shuangquan Lai, Yujia Tang   +5 more
doaj   +3 more sources

Molecular Dynamics Simulations of the Short-Chain Fluorocarbon Surfactant PFH_XA and the Anionic Surfactant SDS at the Air/Water Interface

Molecules
The research and development of alternatives to long-chain fluorocarbon surfactants are desperately needed because they are extremely toxic, difficult to break down, seriously harm the environment, and limit the use of conventional aqueous film-forming ...
Jinqing Jiao, Tao Li, Guangwen Zhang, Jing Xiong, Xuqing Lang, Xiaolong Quan, Yiwei Cheng, Yuechang Wei   +7 more
doaj   +4 more sources

Promoting Efficacy and Environmental Safety of Pesticide Synergists via Non-Ionic Gemini Surfactants with Short Fluorocarbon Chains

Molecules, 2022
Improving the utilization rate of pesticides is key to achieve a reduction and synergism, and adding appropriate surfactant to pesticide preparation is an effective way to improve pesticide utilization.
Ruiguo Wang, Xinxin Xu, Xiaodi Shi, Junjie Kou, Hongjian Song, Yuxiu Liu, Jingjing Zhang, Qingmin Wang   +7 more
doaj   +2 more sources

Synthesis of a novel cationic short-chain fluorocarbon surfactant and its synergistic effect with hydrocarbon surfactants for enhanced foam performance

Arabian Journal of Chemistry
Short-chain fluorocarbon surfactants are key alternatives to long-chain fluorocarbon surfactants, while the research on their cationic formulations remains limited. This study synthesizes a novel quaternary ammonium cationic short-chain fluorocarbon surfactant ( PFH-QAC ) and enhances its ...
Wenjun Zhao, Chenfei Gong, Zhisheng Xu, Long Yan   +3 more
openaire   +2 more sources

Synthesis and application of non-bioaccumulable fluorinated surfactants: a review

Journal of Leather Science and Engineering, 2021
Due to negative effects of conventional fluorinated surfactants with long perfluorocarbon chain (CxF2x+ 1, x≥7) like perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), these conventional long perfluorocarbon chain surfactants have been ...
Rong Zhou, Yong Jin, Yichao Shen, Peng Zhao, Yutang Zhou   +4 more
doaj   +1 more source

Progress in Molecular Dynamics Simulation of Short⁃Chain Fluorocarbon Fire Extinguishing Agent Compounding Mechanism

Shiyou huagong gaodeng xuexiao xuebao
Due to regulatory restrictions on long⁃chain fluorocarbon surfactants, the synergistic mechanisms of short⁃chain composite systems developed as alternatives remain unclear, hindering the advancement of high⁃performance and environmentally friendly ...
Xiaolong QUAN, Tong TONG, Jing XIONG, Yuechang WEI, Jinqing JIAO   +4 more
doaj   +1 more source

Counterion-Mediated Assembly of Fluorocarbon–Hydrocarbon Surfactant Mixtures at the Air–Liquid Interface: A Molecular Dynamics Study

Molecules
This study employs molecular dynamics simulations to investigate counterion effects (Li+, Na+, K+) on the interfacial aggregation of mixed short-chain fluorocarbon, Perfluorohexanoic acid (PFHXA), and Sodium dodecyl sulfate (SDS) surfactants.
Xiaolong Quan, Tong Tong, Tao Li, Dawei Han, Baolong Cui, Jing Xiong, Zekai Cui, Hao Guo, Jinqing Jiao, Yuechang Wei   +9 more
doaj   +1 more source

Polysaccharides and Polyacrylamide as Linear Polymeric Stabilizers for Zwitterionic Short-Chain Fluorocarbon Surfactant: Interfacial Properties, Apparent Viscosity, and Foam Performance

Polymers
Polymeric stabilizers play a critical role in enhancing the stability and performance of firefighting foams. This study evaluated the influence of three polymeric stabilizers (xanthan gum, XG; polyacrylamide, PAM; sodium carboxymethyl cellulose, CMC-Na) on the performance of foam solutions formulated with a zwitterionic short-chain fluorocarbon ...
Wenjun Zhao, Ziyang Zhu, Zhisheng Xu, Long Yan   +3 more
openaire   +2 more sources

Optimizing Xanthan Gum for Enhanced Fire Extinguishing Performance of Eco-Friendly Short-Chain Fluorocarbon Surfactant Foam

Fire
Addressing the environmental challenges posed by traditional foam extinguishing agents containing persistent pollutants, the development of eco-friendly alternatives has become imperative. This study investigates the effect of xanthan gum (XG) on the fire extinguishing performance of PFH-BZ foam formulated with short-chain fluorocarbon surfactant.
Wenjun Zhao, Zhisheng Xu, Long Yan
openaire   +1 more source