Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 102, Issue -, Pages 126-131Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2014.06.018
Keywords
Functional composites; Polymers; Interface; Electrical properties
Categories
Funding
- National Natural Science Foundation of China, China [51272099]
- Natural Science Foundation of Jiangxi, China [20142BAB213018]
- Science Foundation of the Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle [ST201322010]
- Scientific Research Foundation of Nanchang Hangkong University [EA201302361]
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RGO@hematite nanohybrids were fabricated by in situ growth method under mild wet-chemical conditions. A series of characterization results indicate that the as-prepared hematite nanoparticles with relatively uniform sizes are embedded in RGO layers to form unique core-shell nanostructures. As an absorbing material, the RGO@hematite/polyvinylidene fluoride (PVDF) composites were prepared at various loadings of RGO@hematite (0-15 wt%), and they exhibited strong microwave absorption in the microwave range of 2.0-18.0 GHz. For example, RGO@hematite/PVDF composite with 5 wt% loading has a strong absorbing peak at 5.76 GHz and achieves a maximum absorbing value of -43.97 dB. The absorbing peak position moves to lower frequencies with the increase of RGO@hematite loading. The mechanism for the enhanced wave absorbing properties was explained in detail. (C) 2014 Elsevier Ltd. All rights reserved.
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