nanocomposite – Page 9 – TechConnect Briefs

Nanocomposite Contact Material for MEMS Switches

Ding C., MacDonald N.C., university of california, santa barbara, US

This work reports the development of a nanostructured composite contact material for improving the contact reliability of MEMS switches. The nanocomposite material was integrated into a bulk titanium MEMS (BT-MEMS) switch which was fabricated using [...]

Preparation and Characterization of Polyimide-Cobalt Ferrite Nanocomposite

Mazuera D., Cedeño Y., Perales-Perez O., Singh S.P., University of Puerto Rico-Mayagüez, PR

Synthesized 20 nm cobalt ferrite single crystals, which exhibited a coercivity of 2.9kOe at room-temperature, were dispersed in precursor polyamic acid at different volume fractions and cured at 300oC to develop the polyimide matrix. Polyamic [...]

Nanosilicate Filled Poly (vinyl chloride-co-vinyl acetate) and Epoxy Coatings for Steel Corrosion Protection

Allie L., Thorn J., Aglan H., Tuskegee University, US

The corrosion protection of nanosilicate filled poly (vinyl chloride - co - vinyl acetate) (VYHH) and epoxy resins has been studied. Nanosilicate was incorporated into VYHH at 0%, 0.5% and 1.5%wt loadings, and into epoxy [...]

Improvement of electric energy density in PVDF terpolymer nanocomposites and blends

Chu B., Neese B., Lin M., Zhou X., Chen Q., Zhang Q.M., The Penn State University, US

Large enhancement in the electric energy density and electric displacement level were found in nanocomposites of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (PVDF-TrFE-CFE) relaxor ferroelectric polymer/ZrO2 nanoparticles. Through the interface effect the presence of the nanoparticles (with only 1.6 [...]

Nanosilicate Filled Poly (vinyl chloride-co-vinyl acetate) and Epoxy Coatings for Steel Corrosion Protection

Allie L., Thorn J., Aglan H., Tuskegee University, US

The corrosion protection of nanosilicate filled poly (vinyl chloride - co - vinyl acetate) (VYHH) and epoxy resins has been studied. Nanosilicate was incorporated into VYHH at 0%, 0.5% and 1.5%wt loadings, and into epoxy [...]

High-density polyethylene reinforced with titania nanoparticles

Bondioli F., Dorigato A., Fabbri P., Ferrari A.M., Messori M., Pegoretti A., Università di Modena e Reggio Emilia, IT

Titania nanoparticles were prepared by both hydrolysis of tetraethoxy titanium, in order to obtain a spherical shape, and by hydrothermal crystallisation. Nanoparticles were also surface modified with alkylsilanes in order to improve the compatibility with [...]

Development and Application of an Exposure-based Framework for Assessing Nanomaterial Safety

Long C.M., Gradient Corporation, US

Although the Project on Emerging Nanotechnologies estimates that there are already over 500 nanotechnology-based consumer products on the market, few published data are available to support thorough nanomaterial safety assessments. To address questions of product [...]

The Effect of Inclusion of Nanoparticles on the Rheological and Morphological Properties of Triblock Copolymer Gels

Paglicawan M.A., Kim J.K., Industrial Technology Development Institute, PH

Numerous studies reported over the past decade have sought to establish fundamental relationships between morphology and property development in triblock copolymer gels as explicit functions of copolymer molecular weight, copolymer concentration, solution concentration, solvent quality, [...]

Interfacial Nanocomposite Characterization by Nanoparticle Debonding

Killgore J.P., Overney R.M., University of Washington, US

A novel nanoscale thermomechanical methodology is introduced involving resistively heated cantilevers, also referred to as heated tip AFM (HT-AFM), that provide direct access to the interfacial interaction strength between poly(trimethyl silyl propyne) (PTMSP) - silica [...]

Real time Crystallization of Nanoparticles Filled Natural Rubber Under Stretching

Carretero-González J., Verdejo R., Toki S., Hsiao B.S., Giannelis E.P., Lopez-Manchado M.A., Polymer Science and Technology Institute, ES

Polymer nanocomposites (PNCs) represent an alternative new class of materials compared to conventional filled polymers or polymer blends, as they can possess enhanced properties through nanoscale reinforcement.[1] A great deal of efforts have been devoted [...]