• 文献标题:   Rubber composites based on graphene nanoplatelets, expanded graphite, carbon nanotubes and their combination: A comparative study
  • 文献类型:   Article
  • 作  者:   DAS A, KASALIWAL GR, JURK R, BOLDT R, FISCHER D, STOCKELHUBER KW, HEINRICH G
  • 作者关键词:   particlereinforced composite, hybrid composite, synergism, mechanical propertie, dynamic mechanical thermal analysis dmta
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:   Leibniz Inst Polymerforsch Dresden eV
  • 被引频次:   90
  • DOI:   10.1016/j.compscitech.2012.09.005
  • 出版年:   2012

▎ 摘  要

Solution styrene butadiene rubber (S-SBR) composites reinforced with graphene nanoplatelets (GnPs), expanded graphite (EG), and multiwalled carbon nanotubes (MWCNTs) were prepared and the electrical and various mechanical properties were compared to understand the specific dispersion and reinforcement behaviours of these nanostructured fillers. The electrical resistivity of the rubber composite gradually decreased with the increase of filler amount in the composite. The electrical percolation behaviour was found to be started at 15 phr (parts per hundred rubber) for GnP and 20 phr for EG filled systems, whereas a sharp drop was found at 5 phr for MWCNT based composites. At a particular filler loading, dynamic mechanical analysis and tensile test showed a significant improvement of the mechanical properties of the composites comprised of MWCNT followed by GnP and then EG. The high aspect ratio of MWCNT enabled to form a network at low filler loading and, consequently, a good reinforcement effect was observed. To investigate the effect of hybrid fillers, MWCNT (up to 5 phr) were added in a selected composition of EG based compounds. The formation of a mixed filler network showed a synergistic effect on the improvement of electrical as well as various mechanical properties. (C) 2012 Elsevier Ltd. All rights reserved.