Papers:
Design Parameters for “Robust” Superoleophobicity Surfaces
Earlier we reported the fabrication of a model superoleophobic surface comprising ~3-micron diameter pillar arrays on Silicon. Results showed that both surface fluorination and the re-entrant geometry are crucial in achieving the superoleophobicity with hexadecane [...]
Solution Growth of Nanostructured Ceramic Films
Low-temperature processing that can lead to the development of highly-functional, strain-tolerant ceramic films will offer innovative solutions for the use of ceramic thin films and coatings. Current developments in organic and flexible electronics make the [...]
Self Healing Hybrid Coating for Aggressive Environment
Self healing is a desirable property of a coating on metallic substrate to help arrest the development of micro-cracks and the propagation of corrosive species to the interfacial layer and eventually to the substrate. While [...]
Modulating the Near Infrared Reflective Properties of Metal Oxides for Surface Coating Applications
Nidhin M., Sangeetha S., Radhika S., Sreeram K.J., Nair B.U., Central Leather Research Institute (CSIR), IN
A colorant which is able to reflect a major portion of the near infrared radiation is today known as cool colorant. These colorants when coated on roof tops, automobiles, leather etc. reduce the demand for [...]
Nanostructure Formation of Platinum (Pt) Clusters on K-OMS-2 Manganese Oxide Paper by Reactive Spray Deposition Technique (RSDT) – CO Oxidation and Conductivity Measurements
Nano-cluster formation of Platinum (Pt) on a modified K-OMS-2 manganese oxide inorganic paper by reactive spray deposition technology (RSDT) is presented. RSDT was employed to produce a film on the inorganic K-OMS-2 paper material. The [...]
Template-based synthesis of AlN hollow nanofibers via plasma-enhanced atomic layer deposition
We report on the synthesis of AlN hollow nanofibers by plasma-enhanced atomic layer deposition (PEALD) using electrospun polymeric nanofibers as templates. Three templates with different average fiber diameters were obtained by electrospinning of polymeric solutions [...]
Evaluation of stability for monolayer injection molding tools coating
We tested and characterized molecular coating of Aluminium and Nickel prototype molds and mold inserts for polymer replication via injection molding (IM). X-Ray photoelectron spectroscopy (XPS) data, sessile drop contact angles with multiple fluids, surface [...]
Understanding How Nanopatterning Affects Protein Deposition
This work focuses on understanding the effects that nanotopology has on protein adsorption. Functionalized block copolymers were synthesized and processed to produced highly ordered, nanopattered films. Experiments utilizing a quart crystal microbalance were completed to [...]
Flexible Organic-Inorganic Core-Shell Nanofibers by Electrospinning and Atomic Layer Deposition
We report on the fabrication of organic-inorganic core-shell nanofibers by using two-step approach; electrospinning and atomic layer deposition (ALD). In the first step, nylon (polymeric organic core) nanofibers having different average fiber diameters were electrospun [...]
Role of the carbon nanocoating on the electronic conductivity of LiFePO4 based electrodes for lithium ion batteries
Recently, we used the broadband dielectric spectroscopy (BDS), from low (a few Hz) to microwave (a few GHz) frequencies. This technique is very sensitive to the different scales of the electrode architecture involved in the [...]
Lareg area LbL films: the power of reflection over absorption
Layer by layer assembly is a powerful nanotechnology thin film deposition process that enables the creation of highly uniform multilayer optical films. Svaya is using this technology to create highly reflective UV, Visible and IR [...]
Crystallization and optical properties of CCTO thin films under pressure influence
Sequinel T., Tebcherani S.M., Varela J.A., Kubaski E.T., Oliveira L.H., Siu Li M., Universidade Estadual Paulista, BR
The goals of this work were to decrease the synthesis temperature of CCTO thin films using the pressure method, and to improve the homogeneity and density of the CCTO films in order to obtain better [...]
Gravure Printed Network Based on Silver Nanowire for Transparent Electrode
Lin J., Gu W., Cui Z., Suzhou Institute of Nanotech and Nanobionics, Chinese Academy of Sciences, CN
Transparent electrodes are critical components of optoelectronic devices such as solar cells, organic light-emitting diodes, and displays. Most high-performance transparent conducting films at present are composed of sputtered metal oxides, which have limited flexibility because [...]
Clay Polyimide Composite Film with Low CTE and High Water Vapor Barrier Property
Ebina T., Kawasaki K., Nakamura T., Yoshida M., Hayashi H., Hayashizaka N., Yamashita T., Yamamoto T., Misyou D., Bando S., Hayashizaka N., Umeda Y., National Institute of Advanced Industrial Science and Technology, JP
A new clay polymer composite film was prepared by mixing specially processed non-swelling clay and polyimide at an optimal ratio. The newly developed film (80 µm thick) was heat-resistant at 450°C and showed very little [...]
Surface Characterization of Nanoparticle Coated Paperboard
Stepien M., Saarinen J.J., Teisala H., Tuominen M., Aromaa M., Kuusipalo J., Mäkelä J.M., Toivakka M., Abo Akademi University, FI
Both surface topographical and chemical composition of nanoparticle coated paperboard was characterized to explain observed differences in surface wettability. TiO2 particles induce superhydrophobicity with water contact angle (CA) of 161° whereas SiO2 particles result in [...]
Impact of spray-casting height and pressure on durability and superhydrophobicity of nanocomposite coatings
Yeong Y.H., Davis A., Steele A., Loth E., Bayer I., De Combarieu G., Mechanical & Aerospace Engineering, University of Virginia, US
Recently, researchers introduced a new technique to fabricate superhydrophobic coatings by spray-casting polymer-nanoparticle suspensions using an air-atomizing nozzle. Upon thermosetting, the deposited polymer networks crosslink to form a durable, superhydrophobic nanocomposite coating. However, while the [...]
An Electrolytic Reaction to Resist Saturation on Conductive Superhydrophobic Nanocomposites
The following abstract investigates superhydrophobic nanocomposite surfaces that are continuously submerged in water. Unfortunately, the surfaces lose superhydrophobic functionality under constant contact with water. Until recently, there has been little analysis on this performance behavior. [...]
Injection molded superhydrophobic surfaces
The Lotus effect is used as inspiration for the fabrication of injection molded (IM) hierarchical polymer surfaces with self-cleaning properties. IM is a widespread method for the fabrication of plastic items. Surface functionalization is traditionally [...]
Improving Resistance to Foreign Material for Hearing Instruments
One of the recurring problems with hearing aids is the frequent exposure to moisture, wax and other foreign materials that can degrade and eventually hinder their performance. This issue may be exacerbated as the demographics [...]
Durability of a superhydrophobic nanocomposite coating under extended replicated rain impact
The objective of this study was to test the mechanical durability of a polyurethane/organoclay nanocomposite modified with perfluoroalkyl methacrylic copolymer in conditions that replicate extended rain impact. Samples were impacted with 1.4 mm droplets at [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: June 18, 2012
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Coatings, Surfaces & Membranes
ISBN: 978-1-4665-6274-5