文献类型：期刊文献

英文题名：Experimental and analytical studies on the flexible, low-voltage electrothermal film based on the multi-walled carbon nanotube/polymer nanocomposite

作者：Wang, Fangxin[1];Zhang, Kai[1];Liang, Wenyan[1];Wang, Zhenqing[1];Yang, Bin[2]

机构：[1]Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：30

期号：6

外文期刊名：NANOTECHNOLOGY

收录：;EI(收录号：20185106265899);WOS:【SCI-EXPANDED(收录号:WOS:000452895500003)】；

基金：The authors sincerely thank Professor Tong Earn Tay from National University of Singapore (NUS) for helpful discussion and technical assistance, and Dr Fangxin Wang appreciates the support from China Scholarship Council (CSC) program. This work was supported by the National Natural Science Foundation of China (Nos. 11302054, 11532013), Fundamental Research Funds for the Central Universities (Nos. HEUCF170204, HEUGIP201804).

语种：英文

外文关键词：flexible film; carbon nanotube; electrothermal behavior; thermal stability

摘要：This paper presents multi-walled carbon nanotube (MWCNT)/poly(m-phenylene isophthalamide) (PMIA) nanocomposite films as electrothermal elements, which offer advantages in flexibility, low energy consumption and rapid temperature growth. The electrical properties, electrothermal behavior and thermal stability of the films were investigated as a function of MWCNT content. The percolation behavior analysis revealed MWCNTs built a continuously conductive network in PMIA matrix at the corresponding percolation threshold of similar to 0.06 wt%. The electrothermal behavior of the MWCNT/PMIA film was investigated by considering temperature response rapidity and electrothermal efficiency under different ambient conditions. For the film with 7.0 wt% MWCNTs under different ambient conditions, the film worked at a high heating rate of 1.0-8.2 degrees C s(-1) and cooling rate of 0.75-7.0 degrees C s(-1) under a low voltage of 3-12 V, due to the low electrical resistivity (4.5 ohm cm) of the film. The prepared MWCNT/PMIA films supported more outstanding heating performance than conventional PI-Kanthal film, including good heating uniformity, higher electrothermal efficiency and heating/cooling rate. Moreover, the improved thermomechanical properties of the nanocomposite were observed by dynamic thermomechanical analysis.