Anisotropic and high thermal conductivity of epoxy composites containing multilayer Ti3C2Tx MXene nanoflakes
Anisotropic and high thermal conductivity of epoxy composites containing multilayer Ti3C2Tx MXene nanoflakes
复制标题
含有多层 Ti3C2TX MXene 纳米片的环氧复合材料的各向异性和高导热性
DOI：
10.1007/s10853-020-05177-2
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发表时间：
2020-08-31
影响因子：
4.5
通讯作者：
Lin, Jun
中科院分区：
文献类型：
--
作者：
Chen, Lin;Cao, Yu;Lin, Jun
使用多层Ti 3C 2 Tx纳米片制备Ti 3C 2 Tx/环氧树脂复合材料，多层Ti 3C 2 Tx纳米片是少层Ti 3C 2 Tx MXene的大量但通常被丢弃的副产物。采用SEM、TEM、XRD等手段对填料的形貌及其在复合材料中的分布进行了表征。测量了复合材料的面内导热系数和面内导热系数，结果表明，复合材料的面内导热系数随着填料含量的增加而增加，其中面内导热系数的增加更为显著。对于30wt%的填料含量，面内和贯穿面的热导率分别提高到3.14和0.294 Wm-1 K-1，这归因于Ti 3C 2 Tx填料的扩大的有效纵横比和它们在环氧树脂基体中的对齐分布。实验证明和讨论了增强的各向异性热导率对散热和温度控制的益处。
Ti3C2Tx/epoxy composites were prepared using multilayer Ti3C2Tx nanoflakes, which were a massive but generally discarded by-product of few-layer Ti3C2Tx MXene. The morphology of the fillers and their distribution in the composites were characterized by SEM, TEM and XRD. The thermal conductivities in both through-plane and in-plane directions of the composites were measured, which increased with the increasing in the filler content and the in-plane thermal conductivity increased more notably. For filler content of 30 wt%, the in-plane and through-plane thermal conductivities were improved to 3.14 and 0.294 Wm−1 K−1, respectively, which was attributed to the enlarged effective aspect ratio of Ti3C2Tx fillers and their aligned distribution in the epoxy matrix. The benefit of the enhanced anisotropic thermal conductivity on heat dissipation and temperature control was experimentally demonstrated and discussed.