• 文献标题:   The self-aligning behaviour of graphene nanosheets in the styrene butadiene rubber by controlling curing temperature
  • 文献类型:   Article
  • 作  者:   WANG F, MAO J
  • 作者关键词:   aligned graphene nanosheet, gravity field, water evaporation, anisotropic conductivity
  • 出版物名称:   FULLERENES NANOTUBES CARBON NANOSTRUCTURES
  • ISSN:   1536-383X EI 1536-4046
  • 通讯作者地址:   Sichuan Univ
  • 被引频次:   5
  • DOI:   10.1080/1536383X.2017.1409730
  • 出版年:   2018

▎ 摘  要

This paper presents a simple strategy that utilizes the regulation of curing temperature to control the orientation of the aligned graphene nanosheets (GNSs) in styrene butadiene rubber (SBR). GNSs would settle from the well-dispersed GNSs suspensions with the styrene butadiene latex (SBL) mixture under the field of gravity to form parallel-aligned GNSs composites with enough standing time at a lower curing temperature. The vertical-aligned GNSs composites were formed by the combined effect of gravity and steam inductive force within a higher curing temperature. The detail forming mechanisms were discussed in the investigation. The parallel-aligned GNSs/SBR composites demonstrated anisotropic conductivity between the parallel and the perpendicular directions. Along with parallel direction, a percolation threshold value of the GNSs was 0.13 wt%, and 0.58 S/cm and of electric conductivity was attained when the GNSs content was 3 wt%. Along with vertical direction, it the GNSs showed insulating property.