Abstract
ABSTRACTIt is a challenge to design nanofiller reinforced self‐healing nanocomposites with both improved mechanical properties and highly efficient self‐healing properties. In this work, we report a self‐healing polysiloxane nanocomposite using furan‐functionalized graphene (G‐FA) as reinforcement based on Diels−Alder (DA) chemistry. The formed interactions between G‐FA and polysiloxane chains were reversible DA bonds, which negligibly affected the nanocomposites healing efficiency. The self‐healing polysiloxane nanocomposite with 6% G‐FA has a tensile strength of 0.25 MPa that was improved by 140% when compared to an elastomer without G‐FA. The healable polysiloxane nanocomposite recovered more than 90% of its tensile strength and 98% of its elongation‐at‐break, demonstrating that the nanocomposite exhibited highly efficient self‐healing properties. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47725.
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