Research progress in synthesis and application of MXene/polymer composites
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摘要: MXene是一种新颖的二维层状纳米材料,具有大的比表面积和丰富的表面官能团,与聚合物基体复合可显著改善聚合物基复合材料的性能或拓宽其应用范围,因此得到了广泛的研究。本文简要总结了MXene、MXene/聚合物复合材料的制备方法,并对MXene/聚合物复合材料的力学性能、热学性能、摩擦性能和电磁屏蔽等性能进行了阐述,总结了最新的研究进展,最后展望了MXene/聚合物复合材料的发展前景。Abstract: As a novel two-dimensional layered nano material, MXene has large specific surface area and rich surface functional groups. When used as a filler in polymer composites, it can significantly improve the performance or broaden the application of polymer. Therefore, it has been widely studied at present. In this paper, the preparation methods of MXene and MXene/polymer composites are briefly summarized. The mechanical, thermal, tribological and electromagnetic shielding properties of MXene/polymer composites are described, and the latest research progress has been summarized. Finally, the prospects are made on the main problems and for its future development orientation.
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Key words:
- MXene /
- polymer composites /
- reinforcement material /
- mechanical property /
- thermal property /
- tribological property
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图 1 MAX相中的不同原子 (a)、MAX化合物自上而下合成MXene纳米片的步骤 (b)、Ti3AlC2 MAX相氢氟酸(HF)处理之前 (c) 和处理之后 (d) 的SEM图像、机械搅拌后剥落MXene (e)[12]
Figure 1. Different atoms in MAX phase (a), top-down synthesis steps of MXene nanosheets from their MAX compound (b), SEM images of Ti3AlC2 MAX phase before (c) and after (d) hydrofluoric acid (HF) treatments, exfoliated MXene after a mechanical agitation (e)[12]
图 6 (a) 纯环氧和Ti3C2/环氧复合材料的热扩散率和热导率,其中插图为热导率增强(TCE)图;(b) 与文献关于环氧复合材料结果的比较;(c) 纯环氧和Ti3C2/环氧复合材料在不同温度下的导热系数;(d) 纯环氧和Ti3C2/环氧复合材料的加热和冷却循环曲线[67]
Figure 6. (a) Thermal diffusivity and thermal conductivity of neat epoxy and Ti3C2/epoxy composites, thermal conductivity enhancement (TCE) was calculated and shown in the inset of (a); (b) Comparison of thermal conductivity results in this work with those of previous reports on epoxy composites; (c) Thermal conductivity of neat epoxy and Ti3C2/epoxy composites at different temperatures; (d) Heating and cooling cycles of neat epoxy and Ti3C2/epoxy composites[67]
图 7 环氧纳米复合材料的摩擦系数 (a) 和磨损率值 (b);纯环氧树脂 (c)、Ti3C2(M)-EP (d)、石墨烯(G)-EP (e) 和Ti3C2/石墨烯(MG)-EP (f) 复合材料磨损表面的SEM图像[74]
Figure 7. Friction coefficient (a) and wear rate values (b) of the epoxy nanocomposites; SEM images of worn surfaces of neat epoxy (c), Ti3C2 (M)-EP (d), graphene(G)-EP (e) and Ti3C2/graphene(MG)-EP (f)[74]
图 8 Ti3C2Tx MXene复合膜的电磁屏蔽性能和屏蔽机制[83]
Figure 8. Electromagnetic shielding properties and shielding mechanism of Ti3C2Tx MXene composite membrane[83]
EMI SE—Electromagnetic shielding efficiency; SER—Reflection shielding efficiency; SEA—Absorption shielding efficiency; SET—Overall EMI shielding efficiency; BC—Bacterial cellulose; SSE—Specific EMI shielding efficiency; PVA—Polyvinyl alcohol; SA—Sodium alginate; ANF—Aramid nanofiber; TOCNF—2,2,6,6-tetramethyl-1-piperidinyloxy oxidized cellulose nanofiber; PEDOT:PSS—Poly(3,4-ethylenedioxythiophene): poly(styrenesulfonic acid); CNF—Cellulose nanofiber
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