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Removal of Surfactant from Nanocomposites Films Based on Thermally Reduced Graphene Oxide and Natural Rubber

1
Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 850, Santiago, Chile
2
Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, S. Livingstone 1007, Santiago, Chile
3
Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Av. Santa Rosa 11735, Santiago, Chile
4
Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2019, 3(2), 31; https://doi.org/10.3390/jcs3020031
Received: 28 February 2019 / Revised: 23 March 2019 / Accepted: 25 March 2019 / Published: 28 March 2019
(This article belongs to the Special Issue Sustainable Rubber Composites)
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Abstract

Electrically conducting elastomer composites based on natural rubber and reduced graphene oxide (rGO) is reported. These composites were prepared by a latex method and an easy washing process. The latex method consists of the mixing of an aqueous suspension of rGO, stabilized by sodium dodecyl sulfate and pre-vulcanized natural rubber, followed by solvent casting. The percolation threshold of composites was estimated at 1.54 wt.% of rGO. The washing process allowed elimination of the surfactant completely from nanocomposites. The absence of surfactant in nanocomposites was demonstrated by Raman spectroscopy and dynamo-mechanical analysis. The surfactant-free nanocomposites showed improved mechanical and electrical properties. View Full-Text
Keywords: thermally reduced graphene oxide; natural rubber latex; electrical properties; mechanical properties thermally reduced graphene oxide; natural rubber latex; electrical properties; mechanical properties
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Aguilar-Bolados, H.; Contreras-Cid, A.; Neira-Carrillo, A.; Lopez-Manchado, M.; Yazdani-Pedram, M. Removal of Surfactant from Nanocomposites Films Based on Thermally Reduced Graphene Oxide and Natural Rubber. J. Compos. Sci. 2019, 3, 31.

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