材料科学技术(英文版)2021，Vol.71Issue(12) ：23-30.

Nanoinfiltration behavior of carbon nanotube based nanocomposites with enhanced mechanical and electrical properties

Mengmeng Wang Jinshan Yang Xiao You Chunjing Liao Jingyi Yan Jing Ruan Shaoming Dong
材料科学技术(英文版)2021，Vol.71Issue(12) ：23-30.
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Nanoinfiltration behavior of carbon nanotube based nanocomposites with enhanced mechanical and electrical properties

Mengmeng Wang 1Jinshan Yang 2Xiao You 1Chunjing Liao 3Jingyi Yan 1Jing Ruan 4Shaoming Dong5
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作者信息

  • 1. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai,200050, China;Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China;University of Chinese Academy of Sciences, Beijing, 100039, China
  • 2. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai,200050, China;Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
  • 3. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
  • 4. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai,200050, China;Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China;ShanghaiTech University, Shanghai, 201210, China
  • 5. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai,200050, China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
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Abstract

In this work,carbon nanotube (CNT) based nanocomposites with high mass fraction are proposed by in-situ bridging carbon matrix into CNT paper through optimized chemical vapor infiltration (CVI).Nanoinfiltration behavior of CNTs is basically investigated under the CVI process.The contact between each CNT can be strengthened and the conductive pathways can be established,resulting in the better mechanical and electrical properties.Compared with the pristine CNT paper,the CNT/C composite after pyrolysis process confirms a remarkable advance in tensile strength (up to 310 ± 13 MPa) and Young's modulus (up to 2.4 ± 0.1 GPa).Besides,a notable feature of electrical conductivity also shows an improvement up to 8.5 S/cm,which can be attributed to the mass fraction of CNT (41 wt％) breaking the limits of percolation thresholds and the efficient densification of this sample to establish the conductive pathways.This study has a broad application in the development of the multi-functional electrical and engineering materials.

Key words

Carbon nanotube/Chemical vapor infiltration (CVI)/Nanocomposites

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基金项目

国家自然科学基金(N0.51772310)

中国科学院重点项目(QYZDY-SSWJSC031)

Key Deployment Projects of the Chinese Academy of Sciences(ZDRW-CN-2019-01)

出版年

2021
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI
影响因子：0.657
ISSN：1005-0302
参考文献量49
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