Catalyst free self-healable vitrimer/graphene oxide nanocomposites. (1st March 2020)

• Record Type: Journal Article
• Authors: Krishnakumar, Balaji; Prasanna Sanka, R.V.Siva; Binder, Wolfgang H.; Park, Chanwook; Jung, Jiwon; Parthasarthy, Vijay; Rana, Sravendra; Yun, Gun Jin
• Is Part Of: Composites. Number 184(2020)
• Publication Date: 2020-03-01
• Subjects: Graphene oxide -- Self-healing -- Shape memory -- Nanocomposite -- Vitrimer; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2019.107647
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: 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. Graphical abstract: Graphene promoted catalyst free vitrimer nanocomposites are designed, where the nanocomposites demonstrate the self-healing properties via disulfide exchange based covalent adaptive network behavior. Image 1