Results 51 to 60 of about 313,634 (298)

An experimental study of the physical mechanisms of fluid flow in tight carbonate core samples by binary surfactants

Heliyon
Binary surfactants present a promising approach to modifying the petrophysical mechanisms of rock formations to enhance fluid flow, particularly in challenging environments like carbonate rocks.
Ayomikun Bello, Anastasia Ivanova, Alexander Rodionov, Tagir Karamov, Andrey Morkovkin, Alexey Cheremisin   +5 more
doaj   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Elution of viruses by ionic and nonionic surfactants [PDF]

Applied and Environmental Microbiology, 1996
The ionic and nonionic surfactants sodium dodecyl sulfate and Triton X-100, respectively, eluted two viruses, phi X174 and PRD1, which were adsorbed to the ionic and nonionic binding membranes cationic polysulfone and nitrocellulose, respectively. Results indicated that complete elution was readily achieved only when combinations of surfactants and ...
B T, Fujito, C D, Lytle
openaire   +2 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

The Influence of Bicomponent Mixed Surfactants on Drop/Interface Coalescence [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2004
Effects of binary mixtures of ionic/nonionic (sodium dodecyl sulfate/2-heptanol or 1-decanol) and nonionic/nonionic surfactants (2-heptnol/1-decanol) on drop/interface coalescence of water drops in a continuous n-heptane phase were examined.
Parissa Khadiv Parsi, Mohammad Ali Moosavian   +1 more
doaj  

Study the adsorption properties of magnetite nanoparticles in the presence of different synthesized surfactants for heavy metal ions removal

Egyptian Journal of Petroleum, 2020
Co-precipitation method is used to prepare magnetite nanoparticles (Fe3O4) which stabilized by two nonionic and one cationic surfactant. 1H NMR used to confirm the chemical structure of the synthesized surfactants.
Fawzia I. El-Dib, Dalia E. Mohamed, Omnia A.A. El-Shamy, Marwa R. Mishrif   +3 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

The High Interfacial Activity of Betaine Surfactants Triggered by Nonionic Surfactant: The Vacancy Size Matching Mechanism of Hydrophobic Groups

Molecules
Alkyl sulfobetaine shows a strong advantage in the compounding of surfactants due to the defects in the size matching of hydrophilic and hydrophobic groups.
Guoqiao Li, Jinyi Zhao, Lu Han, Qingbo Wu, Qun Zhang, Bo Zhang, Rushan Yue, Feng Yan, Zhaohui Zhou, Wei Ding   +9 more
doaj   +1 more source

MIXTURES OF NON-IONIC SURFACTANTS FOR CLEANING COMPOSITIONS

Тонкие химические технологии, 2017
The surface behavior and micelle formation of binary and ternary compositions of nonionic surfactants are studied in relation to their cleaning ability with respect to cotton fabric.
E. F. Bukanova, V. M. Filippenkov, Y. Revina   +2 more
doaj   +1 more source

Nonionic Surfactants in Paper Electrophoresis

Clinical Chemistry, 1960
Abstract 1. A modification of the usual paper electrophoretic procedure has been made by including in the buffer medium 0.05 per cent of certain alkylphenyl ethers of polyethylene glycol. 2. This modified procedure yields electrophoretic patterns of blood serum proteins that may be subdivided into 12 fractions— albumin, α1-
openaire   +2 more sources