Results 11 to 20 of about 82,677 (334)

Mixed adsorption and surface tension prediction of nonideal ternary surfactant systems [PDF]

open access: yes, 2005
To deal with the mixed adsorption of nonideal ternary surfactant systems, the regular solution approximation for nonideal binary surfactant systems is extended and a pseudo-binary system treatment is also proposed.
Ben   +26 more
core   +3 more sources

Novel Nonylphenol Polyethoxylated Based Surfactants for Enhanced Oil Recovery for High-Mineralization Carbonate Reservoir

open access: yesEnergies, 2022
Surfactant flooding can mobilize trapped oil and change the wettability of the rock to be more hydrophilic, which increases the oil recovery factor. However, the selection of surfactants is difficult in the case of high salinity conditions. In this work,
Emil R. Saifullin   +11 more
doaj   +1 more source

Effect of impurities in the description of surface nanobubbles: Role of nonidealities in the surface layer\ud [PDF]

open access: yes, 2011
In a recent study [ S. Das, J. H. Snoeijer and D. Lohse Phys. Rev. E 82 056310 (2010)], we provided quantitative demonstration of the conjecture [ W. A.
Das, Siddhartha
core   +3 more sources

The influence of surfactants of different classes on the toxicity of diesel fuel for Saccharomycetes [PDF]

open access: yesE3S Web of Conferences, 2023
The effect on the survival of the yeast S. cerevisiae of mixtures of diesel fuel (summer variety) with four representatives of different classes of surfactants – cationic (cetyltrimethylammonium bromide), anionic (sodium dodecyl sulfate), nonionic (Tween-
Zhdanova Galina   +5 more
doaj   +1 more source

Vertical Alignment of Nematic Liquid Crystals Based on Spontaneous Alignment Layer Formation between Silver Nanowire Networks and Nonionic Amphiphiles

open access: yesCrystals, 2020
The vertical arrangement of nematic liquid crystals (LCs) in displays can be generally achieved by introducing a polyimide material onto indium tin oxide electrodes.
Seung-Rak Son, Jun Hyup Lee
doaj   +1 more source

Physiological responses and Ethylene-Response AP2/ERF Factor expression in Indica rice seedlings subjected to submergence and osmotic stress

open access: yesBMC Plant Biology, 2023
Background The increased frequency of heavy rains in recent years has led to submergence stress in rice paddies, severely affecting rice production. Submergence causes not only hypoxic stress from excess water in the surrounding environment but also ...
Hsin-Yu Chi   +3 more
doaj   +1 more source

Mutual Influence of Some Flavonoids and Classical Nonionic Surfactants on Their Adsorption and Volumetric Properties at Different Temperatures

open access: yesMolecules, 2022
Due to the increasing practical use of mixtures of flavonoids with nonionic surfactants the presented studies were based on the measurements of surface tension and conductivity of aqueous solution of the quercetin (Q) and rutin (Ru) in the mixtures with ...
Anna Taraba   +3 more
doaj   +1 more source

Conductometric study of sodium dodecyl sulfate - nonionic surfactant (Triton X-100, Tween 20, Tween 60, Tween 80 or Tween 85) mixed micelles in aqueous solution [PDF]

open access: yesHemijska Industrija, 2012
The present study is concerned with the determination of the critical micelle concentration (cmc) of mixed micelles of sodium dodecyl sulfate with one of five nonionic surfactants (Triton X-100, Tween 20, Tween 60, Tween 80 or Tween 85) from ...
Ćirin Dejan M.   +3 more
doaj   +1 more source

Structure Identification of Adsorbed Anionic–Nonionic Binary Surfactant Layers Based on Interfacial Shear Rheology Studies and Surface Tension Isotherms

open access: yesMolecules, 2023
Mixtures of anionic sodium oleate (NaOl) and nonionic ethoxylated or alkoxylated surfactants improve the selective separation of magnesite particles from mineral ores during the process of flotation.
Ourania Oikonomidou   +2 more
doaj   +1 more source

Structural characterization of biocompatible reverse micelles using Small-Angle X-ray Scattering, 31P Nuclear Magnetic Resonance, and Fluorescence Spectroscopy [PDF]

open access: yes, 2018
The most critical problem regarding the use of reverse micelles (RMs) in several fields is the toxicity of their partial components. In this sense, many efforts have been made to characterize nontoxic RM formulations on the basis of biological ...
Ceolín, Marcelo   +4 more
core   +1 more source

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