期刊
RSC ADVANCES
卷 4, 期 38, 页码 19594-19601出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra02040e
关键词
-
资金
- National Basic Research Program of China [2010CB934700]
- National Natural Science Foundation of China [51102223, 50725208, 51132002]
Polymer-composites of polyvinylidene fluoride (PVDF) and reduced graphene oxide (RGO) have been prepared from PVDF/GOmembrane by a simple hot-molding technique. The specific interaction between oxygen-containing functional groups in the GO surface and fluorine groups in PVDF allows the GO to disperse into PVDF homogeneously and it can be thermally reduced into RGO after a hot-press process. Several characterizations such as AFM, XRD, FT-IR and Raman have been employed to confirm the thermally reduced process from GO to RGO in the composite. The enhanced absorption and dielectric properties were investigated; the results indicated that for the composites with a low filler loading of 3 wt%, the maximum reflection loss of the PVDF/RGOcomposite can reach -25.6 dB at 10.8 GHz, and the frequency bandwidth less than 10 dB is from 8.48 to 12.80 GHz, while, when the filler is 3 wt%, the dielectric constant can reach 3801 (10(3) Hz). The enhanced mechanism has been also explained in detail.
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