Preparation and Characterization of Epoxy Resin Filled with TiCT MXene Nanosheets with Excellent Electric Conductivity.

MXene represents new kinds of two-dimensional material transition metal carbides and/or carbonitrides, which have attracted much attention in various applications including electrochemical storage devices, catalysts, and polymer composite. Here, we report a facile method to synthesize TiCT MXene nanosheets and prepare a novel electrically conductive adhesive based on epoxy resin filled with TiCT MXene nanosheets by solution blending. The structure, morphology, and performance of TiCTx MXene nanosheets and epoxy/TiCT MXene nanosheets composite were investigated. The results show that TiCT MXene possesses nanosheet structure. TiCT MXene nanosheets were homogeneously dispersed in epoxy resin. Electrical conductivity and mechanical properties measurements reveal that the epoxy/TiCT MXene nanosheet composite exhibited both good electrical conductivity (4.52 × 10 S/m) and favorable mechanical properties (tensile strength of 66.2 MPa and impact strength of 24.2 kJ/m) when the content of TiCT MXene nanosheets is 1.2 wt %. Thus, TiCT MXene is a promising filler for electrically conductive adhesive with high electric conductivity and high mechanical performance.