Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 93, Issue -, Pages 76-82Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2013.11.016
Keywords
Layered structures; Polymer-matrix composites (PMCs); Mechanical properties; Thermal properties
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Funding
- National Basic Research Program of China (973 Program) [2012CB719701]
- National Natural Science Foundation of China [21374111]
- Specialized Research Fund for the Doctoral Program of Higher Education [20103402110006]
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A simple and large-scale method to prepare molybdenum disulfide (MoS2) nano-flakes by the sonication of its bulk material in an acid aqueous solution of chitosan (CS) was developed. Transmission electron microscopy (TEM) images suggested that the MoS2 was exfoliated into few-layer or mono-layer thin sheets. Specifically, MoS2 dispersion was directly employed to fabricate the chitosan/MoS2 composites. The results obtained from the TEM images and X-ray diffraction (XRD) patterns showed that the MoS2 flakes were homogeneously dispersed in the composites at an appropriate content. The tensile test, dynamic mechanical analysis and thermogravimetric analysis results indicated that the mechanical and thermal properties of CS films were remarkably improved by the incorporation of MoS2, which was attributed to the well dispersion state and the reinforcing effect of the MoS2 nanofillers with unique two-dimensional (2D) structure. (C) 2014 Published by Elsevier Ltd.
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