2D graphene oxide and MXene nanosheets at carbon fiber surfaces
2D graphene oxide and MXene nanosheets at carbon fiber surfaces
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DOI：
10.1016/j.carbon.2022.11.028
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发表时间：
2022-11-28
期刊：
影响因子：
10.9
通讯作者：
Tsukruk, Vladimir V.
中科院分区：
文献类型：
--
作者：
Adstedt, Katarina;Buxton, Madeline L.;Tsukruk, Vladimir V.
碳纤维是先进结构复合材料的关键部件，以其高强度比、热稳定性和化学稳定性著称。控制光纤-矩阵接口是实现所需物理性能的关键。可以共形覆盖纤维表面的功能二维(2D)材料促进了界面和界面工程，从而提高了力学性能和增加了功能。了解2D鳞片如何在碳纤维界面结合、整合和执行，是开发多功能高强度复合材料的关键。在这项研究中，我们用深度多模扫描探针显微镜研究了氧化石墨烯(GO)和Ti3C2Tx MXene纳米薄片在经胺官能化前后的低压碳纤维表面的相互作用。我们认为，除了增强界面外，GO和MXene还可以提供高效的电荷转移，MXene还可以增加纤维表面的导电性，将复合材料的潜在应用扩展到广泛的领域，包括结构超级电容器和电池冷却/包装材料。GO和MXene改性纤维不仅可以通过增加表面粗糙度来增加复合材料的界面粘附性，还可以作为粘结、能量耗散、电荷传输和局部界面硬化的锚。
Carbon fibers, which are known for their high strength to weight ratio and thermal and chemical stability, are key components in advanced structural composites. Controlling the fiber-matrix interface is key to achieving required physical performance. Functional two-dimensional (2D) materials that can conformally coat the fiber surface facilitate interface and interphase engineering for enhanced mechanical properties and added func-tionalities. Understanding how 2D flakes bond, integrate, and perform at carbon fiber interfaces is key to developing multifunctional high-strength composites. In this study, we focus on the surface interactions of graphene oxide (GO) and Ti3C2Tx MXene nanoflakes at the surface of low-tension carbon fibers with and without amine functionalization by in-depth multimode scanning probe microscopy. We suggest that beyond strength-ening the interfaces, GO and MXene provide efficient charge transfer with MXene also adding conductivity to the fiber surface, extending potential applications of composites to broad areas including structural supercapacitors and battery cooling/packaging materials. GO and MXene modified fibers not only create opportunities for increased interfacial adhesion in composites via increased surface roughness, but also act as anchors for bonding, energy dissipation, charge transport, and local interface stiffening.