High thermal conductivity of flexible polymer composites due to synergistic effect of multilayer graphene flakes and graphene foam
High thermal conductivity of flexible polymer composites due to synergistic effect of multilayer graphene flakes and graphene foam
复制标题
由于多层石墨烯薄片和石墨烯泡沫的协同作用，柔性聚合物复合材料具有高导热性
DOI：
10.1016/j.compositesa.2016.03.021
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发表时间：
2016-06
影响因子：
8.7
通讯作者：
Bai, Shu-Lin
中科院分区：
文献类型：
--
作者：
Zhao, Yun-Hong;Zhang, Ya-Fei;Bai, Shu-Lin
柔性热界面材料(TIMS)的研究表明，泡沫石墨烯(GF)的互联网络提供了有效的热传递途径。本工作在体积分数为0.2%的玻璃纤维/聚二甲基硅氧烷(PDMS)复合材料中加入不同量的多层石墨烯鳞片(MGFs)。MGF和GF在改善聚合物复合材料导热性能方面具有显著的协同效应。当MGFs体积分数为2.7时，复合材料的导热系数达到1.08W/m−1K−1，分别比2.7Vol%MGF/PDMS复合材料和纯PDMS的导热系数提高80%、184%和440%。MGF/GF/PDMS复合材料也表现出优异的热稳定性。与纯PDMS相比，MGFs和GF的加入略微降低了复合材料的断裂伸长率，但显著提高了复合材料的杨氏模量和拉伸强度。MGF/GF/PDMS复合材料的良好性能为其在电子产品热管理中的应用提供了良好的条件。
Research on flexible thermal interface materials (TIMs) has shown that the interconnected network of graphene foam (GF) offers effective paths of heat transportation. In this work, a variant amount of multilayer graphene flakes (MGFs) was added into 0.2 vol% GF/polydimethylsiloxane (PDMS) composite. A remarkable synergistic effect between MGF and GF in improving thermal conductivity of polymer composites is achieved. With 2.7 vol% MGFs, the thermal conductivity of MGF/GF/PDMS composite reaches 1.08 W m−1K−1, which is 80%, 184% and 440% higher than that of 2.7 vol% MGF/PDMS, GF/PDMS composites and pure PDMS, respectively. The MGF/GF/PDMS composite also shows superior thermal stability. The addition of MGFs and GF decreases slightly the elongation at break, but observably increases the Young’s modulus and tensile strength of composites compared with pure PDMS. The good performance of MGF/GF/PDMS composite makes it a good TIM for possible application in thermal management of electronics.
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影响因子：
10.9
作者：
Qiangqiang Zhang;Xiang Xu;Hui Li;Guoping Xiong;Han Hu;T. Fisher
通讯作者：
Qiangqiang Zhang;Xiang Xu;Hui Li;Guoping Xiong;Han Hu;T. Fisher
影响因子：
13.1
作者：
Yunhong Zhao;Ya‐Fei Zhang;Zhengyu Wu;S. Bai
通讯作者：
Yunhong Zhao;Ya‐Fei Zhang;Zhengyu Wu;S. Bai
影响因子：
5.2
作者：
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通讯作者：
Wenying Zhou;S. Qi;Hongzhen Zhao;Nai-Liang Liu
影响因子：
13.1
作者：
Kong, K. T. S.;Mariatti, M.;Busfield, J. J. C.
通讯作者：
Busfield, J. J. C.
影响因子：
13.1
作者：
Gan, Lu;Shang, Songmin;Luo, Nicy Mei
通讯作者：
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