Preparation and Characterization of Epoxy Resin Filled with Ti(3)C(2)T(x) 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 Ti(3)C(2)T(x) MXene nanosheets and prepare a novel electrically conductive adhesive based on epoxy resin filled with Ti(3)C(2)T(x) MXene nanosheets by solution blending. The structure, morphology, and performance of Ti(3)C(2)Tx MXene nanosheets and epoxy/Ti(3)C(2)T(x) MXene nanosheets composite were investigated. The results show that Ti(3)C(2)T(x) MXene possesses nanosheet structure. Ti(3)C(2)T(x) MXene nanosheets were homogeneously dispersed in epoxy resin. Electrical conductivity and mechanical properties measurements reveal that the epoxy/Ti(3)C(2)T(x) MXene nanosheet composite exhibited both good electrical conductivity (4.52 × 10(−4) S/m) and favorable mechanical properties (tensile strength of 66.2 MPa and impact strength of 24.2 kJ/m(2)) when the content of Ti(3)C(2)T(x) MXene nanosheets is 1.2 wt %. Thus, Ti(3)C(2)T(x) MXene is a promising filler for electrically conductive adhesive with high electric conductivity and high mechanical performance.