Papers – Page 30 – TechConnect Briefs

Non-destructive imaging analysis of unstable foam structures using 3D computed tomography

Eggert A., Müller M., Nachtrab F., Dombrowski J., Rack A., Zabler S., Fraunhofer Institute for Integrated Systems IIS, DE

In this contribution a laboratory CT setup is presented allowing the acquisition of 3D data sets in less than 15 s. The suitability and possibilities of such a system for unstable foams and other porous [...]

New Insights into Microstructure, Rheology & Molecular Level Structural Changes During Self-Assembly & Gelation in Complex Fluids Through Combined DLS-Optical Microrheology-Raman Spectroscopy

Amin S., Blake S., Kidder L., Lewis E.N., Kenyon S., Malvern Instruments, US

Soft Matter/Complex fluid systems are ubiquitous across a range of industrial and consumer sectors. In many instances the final product format of these complex fluids are gels or soft solids and the processing and product [...]

SRD-MD modelling of hydrodynamic interactions in colloidal systems: playing between computational cost and resolution

Laganapan A.M.K., Videcoq A., Cerbelaud M., Mouas M., Bienia M., Ferrando R., Science of Ceramic Processing and Surface Treatments (SPCTS), FR

A ubiquitous problem that has always been a subject of intensive research is the role played by hydrodynamic interactions (HI’s) in several fundamental problems in colloid rheology and aggregation kinetics. However, the high computational demand [...]

Simulation of the suspension structure for the improve of colloidal processes

Cerbelaud M., Videcoq A., Lestriez B., Guyomard D., Ferrando R., CNRS, FR

Colloidal processes are used in many fields of applications to produce multi-material components with specific microstructures. Here, controlling the structure of colloidal suspensions is crucial in order to reliably adapt the suspension rheology to the [...]

Polymer Gels: Fracture, Friction, Healing and Superabsorbency

Erk K.A., Purdue University, US

Polymer gels have many industrial uses, from drug-delivery and wound-healing materials to the superabsorbent gels used in baby diapers as well as high-performance concrete. The macro-scale physical properties of the polymer gels, including the gel’s [...]

Linseed oil miniemulsions stabilized by polyelectrolyte complex (gum arabic-chitosan)

Michel-Barba M.G., Espinosa-Andrews H., Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, a.C., MX

An linseed oil miniemulsion was optimized using the microfludization process and finally stabilized by polyelectrolyte complexes formation. Emulsion preparation variables such as gum arabic/oil mass ratio (GA/O), oil volume fraction (), homogenization pressure and number [...]

Magnetic Nanofluids in Ultrasonic Testing

Sokolov V.V., Osipov M.I., Moscow State University of Instrument Engineering and Computer Science, RU

The use of the magnetic nanofluid as the bonding medium find an ever increasing application in ultrasonic non-destructive testing method. A thin layer of magnetic nanofluid which is adhered on the transducers face with a [...]

Relationship between Morphology and Electrochemical Properties of Polyaniline in the Nanometer Regime

Lee Y., Yoon H., Chonnam National University, KR

Polyaniline (PANI) has found a wide range of applications due to its electrical properties, reversible redox behaviors and environmental stability. Here, we report the preparation of PANI nanostructures with three different aspect ratios, namely, nanospheres, [...]

Durable Superhydrophobic Coatings for Icephobic Applications

Nahum T., Mitra S., Panwar A., Barry C., Dodiuk H., Kenig S., Mead J., UMass Lowell, US

Recent studies about the application of superhydrophobic surfaces for anti-ice properties have found that ice adhesion strength is reduced significantly compared to bare aluminum surfaces, but these surfaces lack durability. In this work, bottom up [...]

Polymer Nanostructure Approach for Photoelectric Solar Energy Conversions

Sun S., Norfolk State University, US

At materials molecular level, photoelectric/photovoltaic conversion corresponds to a photo induced electron transfer from a molecular electron rich donor entity to an electron deficient acceptor entity, and the process is also called photo induced exciton [...]