期刊
POLYMER COMPOSITES
卷 38, 期 -, 页码 E199-E207出版社
WILEY
DOI: 10.1002/pc.23972
关键词
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资金
- Wisconsin Institute for Discovery
- China Scholarship Council
- The University of Guizhou Province Engineering Research Center Project [[2012]023]
- Science and Technology Foundation of Guizhou Province [[2015]2006]
- Opening Project of State Key Laboratory of Polymer Materials Engineering (Sichuan University) [sklpme2015-4-35]
In this study, a new method of fabricating conductive NR nanocomposites was proposed. Graphene oxide (GO) was obtained through oxidization and exfoliation of graphite and was employed as a reinforcing nanofiller for natural rubber (NR). GO/NR nanocomposites with different concentrations of GO were prepared by a latex mixing and casting method. The nanocomposites were characterized by Raman spectroscopy and TEM, and the thermal and mechanical properties were evaluated by TGA, DSC, tensile testing, and DMA. The results showed that the nanocomposite showed a segregated weblike morphology. The addition of GO slightly decreased the glass transition temperature of NR and improved the thermal stability of the material. The tensile strength and storage modulus of the nanocomposites significantly increased with the GO contents, indicating GO had a strong reinforcing tendency on NR. The electrically conductive reduced graphene oxide (r-GO)/NR nanocomposites were obtained by immersing GO/NR nanocomposites in a hydroiodic (HI) acid aqueous solution for reduction. HI acid can efficiently reduce the GO into graphene in 2 h at 60 degrees C. The volumetric electrical conductivity of the nanocomposites increased with the r-GO contents, and the conductivity of the 5% r-GO/NR nanocomposite was as high as 1 S/m, which showed its promising application as stretchable electrical conductors and elastomers. (C) 2016 Society of Plastics Engineers
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