Composite Materials – TechConnect Briefs

FreeNano – Test Methods for Release of Pigment-Nanoparticles Into the Environment at the End of Life Cycle

Stintz M., TU Dresden, DE

Several coatings with and without nanoscaled additives and pigments were exposed to artificial aging and weathering, before they experienced a mechanical treatment by sanding with process parameters similar to professional sanding condition. The miniature sanding [...]

Investigation of Silica Nanoparticles Accumulated on the Surface of Polymer Nanocomposites Exposed to UV Radiation Using ICP-OES

Rabb S.A., Yu L.L., Bernard C., Nguyen T., NIST, US

Silica nanoparticles are being utilized to enhance the mechanical performance of polymeric materials used in the automotive and construction industries. However, cumulative effects of UV radiation will degrade the polymeric molecules, resulting in a potential [...]

Assessing the Antimicrobial Activity of Silver Nanoparticles Leached from Medical Devices

Casey B.J., Dair B.J., U.S. Food and Drug Administration, US

This work focuses on characterization the leachables released from substrates, e.g. medical devices, containing silver nanoparticles. Furthermore, antimicrobial experiments were conducted to determine how the structure of a silver nanoparticle impact antimicrobial activity. Proper characterization [...]

Elastomer composites containing layered fillers and hydroxyapatities

Lipinska M., Pietrasik J., Zaborski M., Masek A., Institute of Polymer and Dye Technology, PL

Traditionally, as a filler of rubber carbon black is used. It is an active filler able to reinforce and improve the properties of finished rubber products. For ecological and economic reasons the research activity is [...]

Dielectric performance of Polymer Nanocomposites Synthesized by Atmospheric-pressure Plasma-treated Silica Nanoparticles

Yan W., University of New South Wales, AU

The incorporation of nanoparticles can effectively enhance the dielectric performance of polymers. However, the organic-inorganic incompatibility prevents the nanocomposites from obtaining the desired properties. To overcome this issue, coupling agents have been used to coat [...]

Effect of γ-ray irradiated MWCNTs on electrical conductivity of a PET/graphite composite for a bipolar plate application

Kim D-H., Son Y., Kongju National University, KR

The effects of a compounding method and γ-ray treated multiwall carbon nanotubes (MWCNTs) on the electrical conductivity of graphite/PET composites were investigated. We found that dispersion of MWCNTs in the PET phase plays a critical [...]

Preparation of a new generation porous thermal insulation mass using functional nanomaterials

Ulbikas J., Boženko J., Spirova N., CJSC Modern E-Technologies, LT

In this work silica precursor is graft on nanomaterials via a free-radical reaction. The modified nanomaterials have an - OEt functional group which allows us to intercalate the polymer between the layers of expandable graphite [...]

Development of Nanosilica-Thermoset Matrix Resins for Prepreg Composites

Nelson J.M., Hackett S.C., Goetz D.P., Hine A.M., Schultz W.J., 3M, US

A review of the prepreg thermoset matrix resin development activities at 3M and commercial status of these systems will be provided.

Overcoming the Achilles’ Heel of Processing of Polymer Nanocomposites: Achieving Well-Dispersed Polymer-Graphite, Polymer-Carbon Nanotube, and Polymer-Graphene Nanocomposites with Major Property Enhancements by Solid-State Shear Pulverization

Torkelson J.M., Brunner P.J., Kane N., Northwestern University, US

Polymer nanocomposites, particularly with carbon-based nanofiller, hold promise for large-scale, commercial application of novel materials with enhanced, tunable properties. Unfortunately, a stumbling block in achieving this goal on a commercial scale is the remarkable difficulty [...]

Novel Metal-Matrix Composites with Integrally-Bound Nanoscale Carbon

Forrest D.R., Jasiuk I., Brown L., Joyce P., Salamanca-Riba L., Naval Surface Warfare Center, US

Recent advances in nanomanufacturing have made it possible for large amounts (up to 6 wt.%) of nanoscale carbon to be retained as an integral second phase in metals such as aluminum and copper. The carbon [...]

Extremely Stretchable Electrode based on Combination of Inkjet-Printed Silver and Conductive Composite for Stretchable Lighting Applications

Kim D., Kim S., Byun J., Chung S., Kim D., Kim S., Hong Y., Seoul National University, KR

We have studied stretchable electrode based on combination of inkjet-printed silver electrode and conductive composite materials for stretchable lighting device applications. Previous stretchable electrodes were mainly realized by either vacuum deposition or inkjet-printing of conductive [...]

Viscosity Behavior of Magnetic Nanoparticle Filled Fluids and Impact Resistance of Their Fabric Composites

Lee S-G, Chungnam National University, KR

Ferromagnetic fluid(FMF) and magneto-rheological fluid(MRF) have been prepared from iron oxide and iron alloy nanoparticles, respectively, with a proper fluidic medium. In the FMF, chemically synthesized iron oxide particles having diameters of several nanometers were [...]

New approaches of soft chemistry for preparation of nanostructured multifunctional composite coatings

Vinogradov A.V., Vinogradov V.V., Vinogradov A.V., Vinogradov V.V., Agafonov A.V., Institute of Solution Chemistry RAS, RU

In this work, we have obtained film heterostructures such as MeO/TiO2 possessing high photoactivity by low-temperature sol-gel method. We have succeeded in obtaining photoactive TiO2-based crystalline coatings, FeTiO3 and CoTiO3, without calcination and possessing an [...]

New Electrochemical Sensors Based on Clay and Carbon Micro and Nanoparticles for Pharmaceutical and Environmental Analysis

Maghear A., Cernat A., Cristea C., Marian A., Marian I.O., Marian A., Marian I.O., Săndulescu R., Iuliu Hatieganu University of Medicine and Pharmacy, RO

New composite materials based on clay micro and nanoparticles, MWCNTs and polymeric films for the development of electrochemical sensors and biosensors have been realized. Particle size separation of two Romanian bentonites from Răzoare and Valea [...]

Manufacturing and Properties of Nanofiber Composites

Yong D-K, Chungnam National University, KR

Recently, a fiber composite for various industrial applications including automotive, aerospace and civil engineering is in the spotlight as a specialized-functional material such as high strength and modulus, high thermal resistance and high elasticity etc. [...]

Thermal and Thermomechanical Properties of Epoxy Resin / Carbon Black Nanocomposites

Kanapitsas A., Zois H., Stimoniaris A.Z., Delides C.G., Technological Educational Institute Of Lamia, GR

The main aim of the present work is to study the mechanical and thermal properties of nanocomposite materials based on epoxy resin (ER) matrix reinforced with carbon black (CB) nanoparticles. The filler concentration was systematically [...]

Manufacturing Tough Amorphous Thermoplastic-Graphene Nanocomposites

Bandla S., Hanan J.C., Oklahoma State University, US

Nanocomposites have been studied for more than two decades because of their superior performance in comparison with traditional composites. However, few products made using nanocomposites are available commercially. Achieving uniform dispersion in the polymer matrix, [...]

Irradiation effect on ethanol sensing response of zinc and tin composite oxide

Singh O., Singh R.C., Singh O., Singh R.C., Guru Nanak Dev University, IN

Sensing response of synthesized composite oxide of zinc and tin to ethanol vapor before and after irradiation has been reported in this paper. Composite oxide powder has been synthesized by a chemical route followed by [...]

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