Investigation on Tribological and Thermo-Mechanical Properties of Ti 3 C 2 Nanosheets/Epoxy Nanocomposites.

In this study, two-dimensional Ti3 C2 nanosheets were employed to improve the tribological and thermo-mechanical properties of epoxy resin. The Ti3 C2 nanosheets were prepared by ultrasound-assisted delamination of multilayered Ti3 C2 microparticles, and the Ti3 C2 nanosheets/epoxy (Ti3 C2 /epoxy) nanocomposites were fabricated through physical blending and curing reaction. Scanning electron microscopy results showed that the Ti3 C2 nanosheets were dispersed uniformly in the epoxy matrix. Tribological test results showed that the wear rate of Ti3 C2 /epoxy nanocomposites was only 6.61 × 10-14 m3/(N m) at a 1% mass fraction, which was reduced by 72.1% compared to that of neat epoxy. The morphologies of worn surfaces revealed that the wear form of Ti3 C2 /epoxy nanocomposites transformed gradually from fatigue wear to adhesive wear with the increase of mass fraction of Ti3 C2 nanosheets. Moreover, the results of thermo-mechanical properties indicated that incorporation of Ti3 C2 nanosheets effectively improved the storage modulus and glass-transition temperature ( T g ) of epoxy resin. This work provides guidance for improving the tribological and thermo-mechanical properties of epoxy resin.