Results 1 to 10 of about 29,099 (296)

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]

Hemijska 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., Poša Mihalj M., Krstonošić Veljko S., Milanović Maja Lj.   +3 more
doaj   +3 more sources

Desorption of hydrocarbon chains by association with ionic and nonionic surfactants under flow as a mechanism for enhanced oil recovery

Scientific Reports, 2017
The need to extract oil from wells where it is embedded on the surfaces of rocks has led to the development of new and improved enhanced oil recovery techniques.
Ketzasmin A. Terrón-Mejía, Roberto López-Rendón, Armando Gama Goicochea   +2 more
doaj   +2 more sources

Molecular Mechanisms by Which Linear Versus Branched Alkyl Chains in Nonionic Surfactants Govern the Wettability of Long-Flame Coal [PDF]

Molecules
Improving the wettability of coal dust with nonionic surfactants is crucial for mitigating environmental pollution. Here we compare two nonionic surfactants with distinct architectures—n-octyl-α-D-glucoside (OG) and Isooctyl glucoside (APG08)—to dissect ...
Boyu Li, Guochao Yan, Shaoqi Kong, Kuangkuang Wu, Yanheng Wang   +4 more
doaj   +2 more sources

Synthesis a new family hybrid anionic/nonionic surfactant and investigation their physical properties in relation to chemical enhanced oil recovery [PDF]

Scientific Reports
This study details the synthesis of a new class family of surfactants with dual anionic and nonionic moieties (hybrid surfactants) based on maleic anhydride.
Ahmed M. Al-Sabagh, Eman Abdolrasheid, Notaila M. Nasser, Abeer M. El-Naggar, Ahmed I. Hashem, Elsayed A. Elsharaky, Amira E. El-Tabey   +6 more
doaj   +2 more sources

Nonylphenol Ethoxylate Surfactants Modified by Carboxyl Groups for Foam EOR at High-Salinity Conditions

Energies, 2021
High mineralization of water complicates the use of foam in reservoir conditions. Anionic–nonionic surfactants are one of the best candidates for these conditions since they have both high surface activity and salt tolerance.
Emil R. Saifullin, Shinar Zhanbossynova, Dmitrii A. Zharkov, Roman S. Pavelyev, Chengdong Yuan, Mikhail A. Varfolomeev, Ulukbek Zh. Mirzakimov, Sergey Yu. Ivanov, Sergey A. Sitnov   +8 more
doaj   +1 more source

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

Energies, 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, Polina O. Putintseva, Rustam N. Sagirov, Mikhail A. Varfolomeev, Chengdong Yuan, Roman S. Pavelyev, Sergey A. Nazarychev, Aleksei O. Malahov, Lucia Akimushkina, Dmitrii A. Zharkov, Alexey O. Bykov, Ulukbek Mirzakimov   +11 more
doaj   +1 more source

Stabilisation of cosmetic compositions using combined emulsifiers

Тонкие химические технологии, 2021
Objectives. This study investigated the surface properties and micelle formation of combined stabilizers, which are a mixture of ionic and nonionic surfactants or different nonionic surfactants, to establish a correlation between the composition of ...
V. V. Korypaeva, E. F. Bukanova, E. V. Eskova, V. A. Sokhraneva   +3 more
doaj   +1 more source

Investigating the self-assembling of nicotinic hydrazide-based amphiphile into nano-range vesicles and its amphotericin B loading applications

Drug Delivery, 2023
Most of the drugs are hydrophobic and have low water solubility, therefore posing issues in their absorption and bioavailability. Nonionic surfactants improve the solubility of hydrophobic drugs by entrapping them in their lipid bilayers.
Kashif Hussain, Abdul Jabbar, Khwaja Ali Hasan, Muneeb Ali, Zaheer Ul-Haq, Muhammad Raza Shah, Saeed Ahmad Khan, Md Abdur Rashid, Mohsin Kazi, Muhammad Naseer Abbas   +9 more
doaj   +1 more source

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

E3S 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, Cherkasov Danila, Vyatchina Olga, Yampolskaya Tatyana, Zhou Qixing, Stom Devard   +5 more
doaj   +1 more source

Kinetics of Surfactant Adsorption at Fluid-Fluid Interfaces: Surfactant Mixtures [PDF]

, 1999
The adsorption at the interface between an aqueous solution of several surface-active agents and another fluid (air or oil) phase is addressed theoretically.
Andelman, D., Ariel, G., Diamant, H.
core   +4 more sources