Fabrication on the annealed Ti3C2Tx MXene/epoxy nanocomposites for electromagnetic interference shielding application
作者：[7] Lei Wang, Lixin Chen*, Ping Song, Chaobo Liang, Yuanjin Lu, Hua Qiu, Yali Zhang, Jie Kong and Ju
關(guān)鍵字：EMI
論文來源：期刊
發(fā)表時(shí)間：2019年
Few-layered Ti3C2Tx MXene was fabricated by ionic intercalation and sonication-assisted method, followed by
thermal reduction at medium-low temperature. Then annealed Ti3C2Tx/epoxy electromagnetic interference
(EMI) shielding nanocomposites were obtained by solution casting method. XRD, SEM, AFM and TEM indicated
the successful preparation of few-layered Ti3C2Tx. FTIR, XPS and XRD showed that thermal reduction removed
partial polar groups on the surface of Ti3C2Tx with no by-product. For a fixed Ti3C2Tx loading, compared with
Ti3C2Tx/epoxy EMI shielding nanocomposites, the annealed Ti3C2Tx/epoxy EMI shielding nanocomposites
exhibited relatively higher electrical conductivity and excellent EMI shielding effectiveness (SE). When the mass
fraction of annealed Ti3C2Tx was 15 wt%, the annealed Ti3C2Tx/epoxy EMI shielding nanocomposites presented
the optimal electrical conductivity of 105 S/m and EMI SE of 41 dB, 176% and 37% higher than that of 15 wt%
Ti3C2Tx/epoxy EMI shielding nanocomposites. Furthermore, the 5 wt% annealed Ti3C2Tx/epoxy EMI shielding
nanocomposites exhibited the optimal Young’s modulus of 4.32 GPa and hardness of 0.29 GPa, respectively.