Sustainable Materials – Page 14

Three-Dimensional High-order Nano-rod Formation Using a Hydrogen-assisted Deep Reactive Ion Etching

Soleimani S., Zanganeh S., Azimi S., Sanaee Z., Mohajerzadeh S., Taghinejad H., University of Tehran, IR

We report the formation of three-dimensional nano-sized vertical features on amorphous silicon by means of a hydrogen-assisted deep reactive ion etching. The thickness of amorphous silicon has been varied between 5 and 10 µm. The [...]

Preparation of Composite of ZnS Nanoparticles and Montmorillonite by Cavitation Deposition

Praus P., Svoboda L., Kostura B., VŠB-Technical University of Ostrava, CZ

The ZnS-montmorillonite (MMT) nanocomposite was formed by cavitation implosion of ZnS nanoparticles into MMT pores. As a result of very high impact velocities at collisions of ZnS nanoparticles and MMT particles increase of a number [...]

High-rate Manufacturing of 3D Products with Micro and Nanostructured Surfaces

Barry C., Mead J., University of Massachusetts-Lowell, US

Injection molding permits the manufacturing of complex three-dimensional products with micro and nanostructured surfaces in less than 30 seconds. Successful high-rate manufacturing of these surfaces depends on understanding the changes required in material selection, tool [...]

Novel Additive Manufacturing of Tooling with Micro and Nanostructured Surfaces

Sit L.W., Kumbhani M., Genera J.A., Shearer J., Mead J., Barry C., University of Massachusetts-Lowell, US

Tooling with micro and nanostructured surfaces is employed for high-rate fabrication of products using injection molding, hot embossing, and related processes. Current subtractive (machining, lithography) and additive (prototyping) methods for manufacturing tooling are expensive and [...]

Continuous Extrusion Process for Preparation of Polymer Nanocomposites

Shearer J.D.M., Barry C.M.F., Mead J., University of Massachusetts-Lowell, US

Polymer nanocomposites are composed of a nanofiller with a polymer matrix. Typical fillers include nanoclay, carbon nanotubes, nanoparticle silver, nanoalumina, etc. The materials exhibit unique material properties, such as improved barrier properties, flame retardance, and [...]

Materials for Sustainability & Efficiency

Life Cycle Analysis of Plastics in Southeast Queensland – Recycled Plastics versus Bio plastics in Electronics

Neeli M., Okine M., Thiel D.V., Griffith University, AU

Electronics and electronic products are increasingly becoming part of life. However electronic product manufacturing involves a number of energy and chemical process steps. Energy use in material extraction for electronic products, chemical use, product manufacturing [...]

Quinaldine and Indole based pH Sensitive Colorimetric Chemosensor and their application of nanofiber

Bae J.S., Kim S-H, Son D.H. Lee Y-A., Kyungpook National University, KR

Colorimetric chemosensors are now considered as one of the most effective analytical method used in the environment monitoring. Colorimetric chemosensors for pH sensing can easily detect the primary danger or change of the surrounding environment [...]

Photocatalytic Performance of Ag modified and doped TiO2 nanoparticles

Cho C-P, Chang L.-H., National Chi-Nan University, TW

In this work, TBOT was used as the titanium source for preparation of TiO2 nanoparticles, followed by calcination at 500°C for 2 hours to achieve fine TiO2 nanoparticles powder (S1). The obtained S1 powder was [...]

Electrospinning of decorated nanofibers with active cerium oxide nanoparticles

Shehata N., Hassounah I., Meehan K., Camelio J., Virginia Tech, US

Cerium oxide nanoparticles (ceria NPs) attract a great research and commercial interests due to its observable capability to capture radicals and dissolved oxygen molecules. Keeping ceria NPs in active form; containing Ce+3 ions with O-vacancies, [...]