Journal
MATERIALS & DESIGN
Volume 88, Issue -, Pages 950-957Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.09.064
Keywords
Composites; Graphene nanoplatelets; Thermal conductivity; Electrical properties; Mechanical properties
Categories
Funding
- National Natural Science Foundation of China [51303034, 51573201]
- Natural Science Foundation of Ningbo [Y40307DB05]
- International Science and Technology Cooperation Program of Ningbo [2015D10003]
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Graphene nanoplatelets (GNPs)/silicone rubber composites were prepared with the assistance of the Flacktek SpeedMixer. A scanning electron microscope (SEM), transmission electron microscopy (TEM), Raman spectra, Fourier-transform infrared spectra (FTIR), and X-ray photoelectron spectra (XPS) were carried out to characterize the structure of graphene nanoplatelets. An electronic universal testing machine, laser thermal conductivity analysis (LFA), thermogravimetric analysis (TGA), and a scanning electron microscope (SEM) reveal the effects of GNP loading content on the thermal conductivity, electrical, and mechanical properties of the composites. The results show that the GNPs present a homogeneous dispersion in silicone rubber and the thermal conductivity of composites exhibits improving from 0.16 to 0.26W / (m center dot K) (an increase of 53.1%) and the tensile strength varies from 0.240 to 0.608 MPa (an increase of 153%) with the addition of a low content (0-8%) of GNPs. In addition, the thermal stability of silicone rubber composites is significantly enhanced. (C) 2015 Elsevier Ltd. All rights reserved.
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