Title: Magnetic nanocomposites obtained using high evaporation rate magnetic nanofluids

Authors: Nicolae Crainic, Doina Bica, Antonio Torres Marques, Nicolae Calin Popa, Paulo Jorge Roque De Oliveira Novoa, Nuno A.C.M. Correia, Oana Marinica, Carlos Pinto Moreira De Sa, Ladislau Nicolae Vekas

Addresses: National Center for Engineering of Systems with Complex Fluids (NCESCF), 'Politechnica' University of Timisoara, Timisoara, Romania. ' Center for Advanced and Fundamental Technical Research (CAFTR), Romanian Academy – Timisoara Branch, Timisoara, Romania. ' Department of Mechanical Engineering and Industrial Management, University of Porto, Porto, Portugal. ' Center for Advanced and Fundamental Technical Research (CAFTR), Romanian Academy – Timisoara Branch, Timisoara, Romania. ' Composite Materials and Structures Unit, Institute of Mechanical Engineering and Industrial Management, Porto, Portugal. ' National Center for Engineering of Systems with Complex Fluids (NCESCF), 'Politechnica' University of Timisoara, Timisoara, Romania. ' Center for Materials, University of Porto, Porto, Portugal. ' Center for Advanced and Fundamental Technical Research (CAFTR), Romanian Academy – Timisoara Branch, Timisoara, Romania

Abstract: In this paper, we study the influence of the addition of small amounts of nanomagnetic fluids in resins, some specific properties of these fluids and the possibility to produce a new category of magnetisable nanocomposite materials. The research was focused on the compatibility between the various types of nanomagnetic fluids and resins. Samples were prepared varying the resins, carrier liquids and volume fraction of magnetic nanoparticles. The polymerisation process of nanocomposites was investigated under the influence of applied magnetic field. Results of investigations presented in this paper refer to the microstructure of the samples (optical and/or electronic microscopy), and to the mechanical properties corresponding to different preparation methods (three points bending test, elastic properties, gel time determination).

Keywords: nanomagnetic fluids; ferrofluids; microstructure; magnetic nanocomposites; resins; polymers; magnetic field; nanomanufacturing; nanotechnology; polymerisation; mechanical properties.

DOI: 10.1504/IJNM.2007.017999

International Journal of Nanomanufacturing, 2007 Vol.1 No.6, pp.784 - 798

Published online: 25 Apr 2008 *

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