Results 91 to 100 of about 242,100 (216)

Poly (ionic liquid) Based on Modified Ionic Polyacrylamide for Inhibition Steel Corrosion in Acid Solution

International Journal of Electrochemical Science, 2015
The green method to protect steel from corrosion becomes target for corrosion science. In this work, synthesis of new poly(ionic liquid) as green inhibitor with lower concentration is used to protect carbon steel from aci corrosion. In this respect, poly(
Ayman M. Atta, Gamal A. El-Mahdy, Hamad A. Allohedan, Mahmood M.S. Abdullah   +3 more
doaj   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Arginine-Derived Cationic Surfactants Containing Phenylalanine and Tryptophan: Evaluation of Antifungal Activity, Biofilm Eradication, Cytotoxicity, and Ecotoxicity

Journal of Xenobiotics
Due to the growing emergence of bacterial and fungal resistance, there is an urgent need for novel antimicrobial compounds. Cationic surfactants are effective antimicrobial agents; however, traditional quaternary ammonium compounds (QACs) are ...
M. Teresa García, M. Carmen Morán, Ramon Pons, Zakaria Hafidi, Elena Bautista, Sergio Vazquez, Lourdes Pérez   +6 more
doaj   +1 more source

Adsorption Characteristics and Corrosion Inhibition Efficiency of Ethoxylated Octadecylamine Ionic Liquid in Aqueous Acid Solution

International Journal of Electrochemical Science, 2016
Ionic liquids attracted great attention as green surfactants to apply as corrosion inhibitors for steel in aqueous corrosive medium. In this work, amphiphilic ionic liquid was synthesized by quaternization of ethoxylated octadecylamine with p-toluene ...
Ayman M. Atta, Gamal A. El-Mahdy, Hamad A. Allohedan, Mahmood M.S. Abdullah   +3 more
doaj   +1 more source

Ultrasonic and Densitometric Characterization of Hyaluronan and its Interaction with Surfactant [PDF]

, 2014
This disertation thesis is focused on the study of physico-chemical interactions of hyaluronan (with molecular weights from 10 to 1750 kDa) with cationic surfactants measured using uncommon technique named high resolution ultrasonic spectroscopy ...
Hurčíková, Andrea
core  

Theoretical description of mixed film formation at the air/water interface : carboxylic acids–fatty amines

, 2020
Thermodynamic parameters of mixed monolayer formation of aliphatic amines CnH2n+1NH2 and carboxylic acids CnH2n+1COOH (n = 6–16) are calculated using the quantum chemical semiempirical PM3 method.
Fainerman, V., Kartashynska, E., Vollhardt, D., Vysotsky, Y., Zakharov, A.   +4 more
core   +1 more source

Surfactant induced autophobing

Soft Matter, 2016
Surfactant adsorption in a three-phase system and its influence on wetting properties are relevant in various applications. Here, we report a hitherto not observed phenomenon, namely the retraction of an aqueous drop on hydrophilic solid substrates (which we refer to as 'autophobing') in ambient oil containing water-insoluble fatty acids, caused by the
Bera, B., Duits, M.H.G., Cohen Stuart, M.A., van den Ende, D., Mugele, F.   +4 more
openaire   +5 more sources

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Electrochemical behaviour of Mild Steel in Acidic Medium Based on Eco-Friendly Stabilized Monodisperse Silver Nanocomposite

International Journal of Electrochemical Science, 2014
Among the natural products, plant extracts and gums find a prominent place. The abundant phytochemical constituents of plant extracts and gums possess considerable potential as inexpensive, non-toxic and renewable sources of a wide range of organic ...
Ayman M. Atta, Gamal A. El-Mahdy, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat   +3 more
doaj   +1 more source

Coarse-graining MARTINI model for molecular-dynamics simulations of the wetting properties of graphitic surfaces with non-ionic, long-chain and T-shaped surfactants

, 2012
We report on a molecular dynamics investigation of the wetting properties of graphitic surfaces by various solutions at concentrations 1-8 wt% of commercially available non-ionic surfactants with long hydrophilic chains, linear or T-shaped.
Alberto Ortona, Danilo Sergi, Giulio Scocchi, Myers D.   +3 more
core   +1 more source