Journal
COMPOSITES PART B-ENGINEERING
Volume 67, Issue -, Pages 449-454Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.08.010
Keywords
Polymer-matrix composites (PMCs); Electrical properties; Mechanical testing
Funding
- CONICIT - Chile [FONDECIT 1131139]
- Spanish Ministry of Science and Innovation (MICNN) - Spain [MAT 2010-18749]
- BECAS CHILE
- CONICYT
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The latex technology is an innovative alternative for the preparation of composites of natural rubber (NR) and thermally reduced graphite oxide (TRGO). To achieve an improvement of material properties is indispensable to prepare stable suspensions of TRGO. In this work the influence of two surfactants, such as sodium dodecyl sulfate (SDS), as ionic, and Pluronic F 127 as non-ionic surfactant, on the dispersion of TRGO in NR latex and the mechanical and physical properties of the composites were studied. The results showed that the SDS surfactant is ideal for preparing latex NR/TRGO nanocomposite. An optimum dispersion of the nanoparticles in the polymer matrix was achieved in the presence of SOS, as reflected in a considerable improvement of the physical and mechanical properties of the material. Thus, the nanocomposites with 3 phr of TRGO exhibited an improvement of nearly 400% in the maximum strength and an electrical percolation threshold with values around 10(-6) S/cm, above the static limit. (C) 2014 Elsevier Ltd. All rights
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