Effect of surfactant functionalization of multi-walled carbon nanotubes on mechanical,electrical and thermal properties of epoxy nanocomposites |
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Authors: | Xi Nan Jing Ma Jianqiang Liu Jing Zhao Weihui Zhu |
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Institution: | 1.School of Material Science and Engineering,Taiyuan University of Technology,Taiyuan,China |
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Abstract: | The present paper compares the mechanical, electrical and thermal properties of epoxy nanocomposites (prepared by solution blending method) by adding four different multi-walled carbon nanotubes (MWCNTs), which are pristine, cationic, anionic and non-ionic surfactant functionalized MWCNTs, respectively. This investigation focused on the effects of dispersion of MWCNTs on the physical properties. Systematical characterization on the dispersion of MWCNTs in different solvents were did via UV-Vis spectrophotometer. The Hansen solubility parameters (HSPs) and dispersion of MWCNTs in solvent and epoxy were both changed after surfactants introduced especially for the non-ionic surfactant. Finally, mechanical, fracture toughness, electrical and thermal properties of epoxy composites were found can be improved because of good dispersion of MWCNTs (especially non-ionic surfactant). |
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