Results 21 to 30 of about 142,846 (190)

Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group

Molecules, 2023
This paper reports the synthesis of a novel quaternary surfactant containing a hydroxyethyl group (PFPE-C) and the surface properties of its aqueous solution (investigated by comparisons with two structurally similar chemicals, dodecyl-(2-hydroxyethyl ...
Jiangxun Dou, Jiaoyan Liu, Yan Wang, Lifei Zhi, Jixian Shen, Guoyong Wang   +5 more
doaj   +1 more source

Design and evaluation of an innovative composite silicate-based surface treatment agent of concrete

Case Studies in Construction Materials, 2023
Silicate-based surface treatment agent is a sustainable material to provide a sealing coat on the surface of Portland cement concrete to improve its hardness, impermeability, chemical durability, and abrasion resistance.
Qiao Dong, Xinyuan Cao, Sike Wang, Xueqin Chen, Bohan Yang, Shengjia Xie, Zhiqiang Cheng   +6 more
doaj   +1 more source

Synthesis and application of cationic fluorocarbon surfactants

Journal of Dispersion Science and Technology, 2023
In this paper, a series of cationic polyurethane fluorinated surfactants were synthesized using a series of isocyanates, and 1H, 1H, 2H,2H-tridecafluoro-1-octanol, 2-(dimethylamino)ethanol, and iodomethane as raw materials in a three-step sequential reaction.
Zhang, Saipeng, Zhang, Mingxin, Liu, Xingjiang, Wei, Liuhe   +3 more
openaire   +1 more source

Rheological Properties of Gel Foam Co-Stabilized with Nanoparticles, Xanthan Gum, and Multiple Surfactants

Gels, 2023
Gel foam has the advantages of gel and foam and shows good prospects for applications in the fields of fire prevention and extinguishing. Rheology has a significant impact on the application of gel foam, but there is little related research.
Youjie Sheng, Hanling Zhang, Li Ma, Zhenping Wang, Die Hu, Shanwen Zhang   +5 more
doaj   +1 more source

An antifouling and acid resistant loose NF membrane via synergic modification of PVP and PEI on PTFE substrate

Results in Engineering, 2023
Polytetrafluoroethylene (PTFE) with good resistance can be used under extreme conditions, however, its surface hydrophobicity greatly limits its wide application in water treatment field.
Yingying Zhao, Ju Bai, Mowen Li, Yucang Liang, Ailing Fan, Linglong Shan, Hongxia Guo   +6 more
doaj   +1 more source

Thermal Stability of Gel Foams Stabilized by Xanthan Gum, Silica Nanoparticles and Surfactants

Gels, 2021
The foams stabilized by nanoparticles (NPs), water-soluble polymers, and surfactants have potential application prospects in the development of new, environmentally friendly firefighting foams.
Youjie Sheng, Canbin Yan, Yang Li, Yunchuan Peng, Li Ma, Qiuhong Wang   +5 more
doaj   +1 more source

Biocompatible surfactants for water-in-fluorocarbon emulsions

Lab on a Chip, 2008
Drops of water-in-fluorocarbon emulsions have great potential for compartmentalizing both in vitro and in vivo biological systems; however, surfactants to stabilize such emulsions are scarce. Here we present a novel class of fluorosurfactants that we synthesize by coupling oligomeric perfluorinated polyethers (PFPE) with polyethyleneglycol (PEG).
C. HOLTZE, A. C. ROWAT, J. J. AGRESTI, J. B. HUTCHISON, F. E. ANGILÈ, C. H. J. SCHMITZ, S. KÖSTER, H. DUAN, K. J. HUMPHRY, R. A. SCANGA, J. S. JOHNSON, PISIGNANO, Dario, D. A. WEITZ   +12 more
openaire   +6 more sources

Dynamic Surface Excesses of Fluorocarbon Surfactants

Langmuir, 2003
Dynamic adsorption and surface tension behavior of aqueous fluoro-surfactant solutions has been investigated using a range of experimental techniques, including neutron reflection (NR). Equilibrium tensions, γeq, have been measured by drop volume tensiometry (DVT), and dynamic surface tensions, γdyn, have been determined using the nonperturbative ...
Eastoe, JG, Rankin, AJ, Wat, RKM, Bain, CD, Strykas, D, Penfold, J   +5 more
openaire   +1 more source

Surfactant Additives Containing Hydrophobic Fluorocarbon Chains and Hydrophilic Sulfonate Anion for Highly Reversible Zn Anode

Molecules, 2023
Aqueous zinc-ion batteries (AZIBs) show enormous potential as a large-scale energy storage technique. However, the growth of Zn dendrites and serious side reactions occurring at the Zn anode hinder the practical application of AZIBs.
Jinxian Huang, Zhao Fu, Chuan-Fu Sun, Wenzhuo Deng   +3 more
doaj   +1 more source

Fluorinated Surfactant Adsorption on Mineral Surfaces: Implications for PFAS Fate and Transport in the Environment

Surfaces, 2020
Fluorinated surfactants, which fall under the class of per- and polyfluoroalkyl substances (PFAS), are amphiphilic molecules that comprise hydrophobic fluorocarbon chains and hydrophilic head-groups.
Anthony V. Alves, Marina Tsianou, Paschalis Alexandridis   +2 more
doaj   +1 more source