Journal
MATERIALS & DESIGN
Volume 89, Issue -, Pages 653-659Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.09.155
Keywords
Graphene oxide; Liquid-like behavior; Toughness; Glass transition temperature; Epoxy nanocomposites
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Funding
- National Natural Science Foundation of China (NSFC) [51373137, 51373136]
- Northwestern Polytechnical University [Z2015143]
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A solvent-free liquid-like nanocrystal-functionalized.graphene oxide was successfully prepared. Its morphology, chemical structure and multifunction were extensively characterized by various analysis technologies. It was found that the liquid-like nanocrystal-functionalized graphene oxide could flow at room temperature without any solvents and remained magnetic with a saturation magnetization about 2.57 emu/g. Moreover, it exhibited good dispersion in various solvents and polymer matrix. Subsequently, it was incorporated into epoxy matrix to investigate the toughness and glass transition temperature of the resulting nanocomposites. The results indicated that it could simultaneously improve the impact toughness and glass transition temperature of neat epoxy by 138.12% and 33.05 degrees C at the 1.0 wt.% fraction. (C) 2015 Elsevier Ltd. All rights reserved.
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