Results 101 to 110 of about 123,940 (316)

Effect of Inorganic Nanomaterials Types Functionalized with Smart Nanogel on Anti-corrosion and Mechanical Performances of Epoxy Coatings

International Journal of Electrochemical Science, 2017
Nanomaterials based on metal oxides play an important role to fill the micro-cracks and porosity of epoxy coats but fail to act as self-healing for damage coats.
Ayman M. Atta, Ashraf M. El-Saeed, Hussin I. Al-Shafey, Hamad A. Al-Lohedan, Ahmed M. Tawfeek, Mohamed Wahbey   +5 more
doaj   +1 more source

Lung Surfactant [PDF]

Environmental Health Perspectives, 1984
Aspects of pulmonary surfactant are reviewed from a biochemical perspective. The major emphasis is on the lipid components of surfactant. Topics reviewed include surfactant composition, cellular and subcellular sites as well as pathways of biosynthesis of phosphatidylcholine, disaturated phosphatidylcholine and phosphatidylglycerol.
openaire   +3 more sources

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

A New Class of Labile Surfactants that Break Down to Non-surface Active Products upon Heating or after a Pre-set Time, without the Need for a pH Change

, 2007
A new class of labile surfactants that break down at a controllable rate without the need for a change in pH will be presented. The invention has been patented by YKI Institute for Surface Chemistry, and is based on use of β-keto acids or their salts as ...
Sjöström, E., Younesi, S. R.,, Oldgren, J., Blute, I., Hillerström, A.,, Svensk, A.,, Kjellin, M., Hansson, A., Kronberg, B., Andersson, M.,, Kizilng, J., Sjöstrand, S.   +11 more
core   +1 more source

Two novel triazine-based quaternary ammonium salt Gemini surfactants as potential corrosion inhibitors for carbon steel in a sulfate-reducing bacteria solution: Experimental and theoretical studies

Heliyon
In this paper, two triazine ring–containing quaternary ammonium salt Gemini surfactants (C12-2-C12 and C14-2-C14) were synthesized. The minimum inhibitory concentrations against sulfate-reducing bacteria (SRB) of C12-2-C12, C14-2-C14 and dodecyl dimethyl
Guofang Gao, Junxia Wang, Penghui Liang, Yilei Ruan, Dehua Wang, Li Feng, Xuemei Ma, Zhiyong Hu, Hailin Zhu   +8 more
doaj   +1 more source

Electrochemical Behavior of Self-Assembly Monodisperse Nanogels Based on Poly (vinyl alcohol) / Poly (acrylic acid) Semi-Interpenetrating Networks

International Journal of Electrochemical Science, 2015
A new class of monodisperse water-soluble nanogels was prepared by a simple and green method. Semi-interpenetrating nanogels based on poly (vinyl alcohol), PVA, and poly(acrylic acid), PAA, nanoparticles. PAA was prepared by crosslinking of acrylic acid (
Ayman M. Atta, Gamal A. El-Mahdy, Hamad A. Al-Lohedan, Ashraf M. El-saeed, Ahmed M. Tawfeek   +4 more
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Scanning Electronic Microscopy for analysis of the effects of surfactants on de-wrinkling and dispersion of graphene

, 2015
Graphene was dispersed using a tip sonicator and the effect of surfactants were analysed. Sodium Dodecyl Sulphate (SDS) and Polyvinyl Alcohol (PVA) were compared to observe whether or not they had any effect on any de-wrinkling, and secondly whether they
Inam, Fawad, Bhat, Badekai Ramachandra, B. Ramachandra Bhat, Kostandinos Katsamangas, Fawad Inam, Katsamangas, Kostandinos   +5 more
core   +1 more source

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