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Preparation and dielectric properties of surface modified TiO2/silicone rubber nanocomposites
Authors:Zhi-Min Dang  Yu-Juan Xia  Jun-Wei Zha  Jin-Kai Yuan  Jinbo Bai
Affiliation:1. Department of Polymer Science and Engineering, School of Chemical and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, People''s Republic of China;2. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People''s Republic of China;3. Laboratoire de Mécanique des Sols, Structures et Matériaux, Ecole Centrale Paris, CNRS, UMR8579, PRES UniverSud, Grande Voie des Vignes, 92295 Châtenay-Malabry Cedex, France;1. Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain;2. Sicame Company, C/ Zinc, 14 – Polígono Industrial Aquiberia, 08755, Castellbisbal, Barcelona, Spain;3. Departament d’Enginyeria Elèctrica, Universitat Politècnica de Catalunya, C. Colom, 1, 08222 Terrassa, Spain;4. Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, 08028 Barcelona, Spain;1. Department of Polymer Science and Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, People''s Republic of China;2. College of Mechanics Engineering, Nanjing Institute of Industry Technology, Nanjing, 210023, People''s Republic of China
Abstract:A TiO2/silicone rubber (SR) nanocomposite was prepared via three-roll grinding followed compressive molding technology. The TiO2 nanoparticles were chemically modified with silane couple agent and the modification effect on the dielectric and mechanical properties of the resultant composites was investigated. The results showed that the electrical breakdown strength and ultimate tensile strength of the modified TiO2 (m-TiO2)/SR nanocomposites enhanced significantly while the dielectric loss decreased relative to the naked TiO2 (n-TiO2)/SR nanocomposites. These results were well correlated to the uniform dispersion state of the m-TiO2 as well as the remarkably enhanced interfacial interaction thanks to the presence of the silane couple agent.
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