278344 Synthesis and Study of SiO2-PMMA-Carbon Nanotubes Composites

Monday, October 29, 2012: 2:10 PM
Cambria East (Westin )
Mayra A. Pantoja-Castro1, Horacio González-Rodríguez1, Juan F. Pérez-Robles2, Manuel A. Quevedo-Lopez3 and Hader V. Martínez-Tejada4, (1)División de Estudios de Posgrado de la Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico, (2)Centro de Investigación y de Estudios Avanzados del IPN, Unidad Querétaro, Instituto Politecnico Nacional, Querétaro, Mexico, (3)Materials Science and Engineering, University of Texas at Dallas, Richardson, TX, (4)Facultad de Ingeniería Mecánica , Universidad Pontificia Bolivariana, Medellín, Colombia

Hybrid materials, composed of organic and inorganic compounds, have been considered an important area of research for many years because its properties combination, resulting in new materials with enhanced electrical, mechanical, thermal and optical properties. Although silica-PMMA is a hybrid material even without the addition of carbon nanotubes; it is becoming increasing clear that incorporating of multiwalled carbon nanotubes (MWNTs) in hybrids may release new applications, as MWNT can act as fillers at the nano level, resulting in much better properties.

The aim of this work is the synthesis of a hybrid composite from silica-poly(methyl methacrylate) and multiwalled carbon nanotubes (SiO2-PMMA-MWNTs), with 0 to 0.5 wt% MWNTs. SiO2-PMMA-MWNTs  films were analyzed by infrared spectroscopy (FT-IR), Raman spectroscopy, thermogravimetric analysis (TGA) and UV-visible. FT-IR and Raman studies showed an interaction between silica, PMMA and MWNTs. A high dispersion of MWNTs into the SiO2-PMMA matrix as well as an increase in the thermal stability of the SiO2-PMMA-MWNTs hybrid material was observed.

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See more of this Session: Composites
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