• 文献标题:   Catalyst free self-healable vitrimer/graphene oxide nanocomposites
  • 文献类型:   Article
  • 作  者:   KRISHNAKUMAR B, SANKA RVSP, BINDER WH, PARK C, JUNG J, PARTHASARTHY V, RANA S, YUN GJ
  • 作者关键词:   graphene oxide, selfhealing, shape memory, nanocomposite, vitrimer
  • 出版物名称:   COMPOSITES PART BENGINEERING
  • ISSN:   1359-8368 EI 1879-1069
  • 通讯作者地址:   UPES
  • 被引频次:   14
  • DOI:   10.1016/j.compositesb.2019.107647
  • 出版年:   2020

▎ 摘  要

Catalyst free graphene oxide (GO) promoted self-healing vitrimer nanocomposites are designed, where the synthesized vitrimer nanocomposites displays self-healing properties via disulfide exchange based covalent adaptive network behavior. This study found that GO based nanofiller enhance the self-healing properties, including the shape memory and flexural strength of the materials. The GO induced lower glass transition was helpful to achieve low temperature self-healing: when compared to epoxy vitrimers (73% and 60% self-healing) the vitrimeric nanocomposites demonstrates a 88% and 80% self-healing for the first and second cycle, respectively.