文献类型：期刊文献

英文题名：Thin and high conductive multi-walled carbon nanotubes/polydimethylsiloxane composite film prepared via solvent method as strain sensors

作者：Fu, Shaoge[1];Wang, Yu[2];Zhong, Yifan[1];Deng, Jia[1];Zhang, Zhenbang[1];Zhao, Haili[1];Chen, Tao[1]

机构：[1]Kunming Univ Sci & Technol, Fac Chem Engn, Kunming, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China

年份：2024

卷号：35

期号：2

外文期刊名：POLYMERS FOR ADVANCED TECHNOLOGIES

收录：;EI(收录号：20240915653093);WOS:【SCI-EXPANDED(收录号:WOS:001177340200009)】；

语种：英文

外文关键词：thin; high electrical conductivity; solvent method; flexible strain sensors

摘要：Flexible strain sensors based on conductive fillers and flexible polymers possessed significant advantages in human motion detection. Preparing a strain sensing layer with high electrical conductivity and excellent mechanical property under high content of conductive filler contributed to the stability of flexible strain sensors. In this study, MWCNTs/PDMS composite film was prepared by the organic solvent method. The microstructure, electrical conductivity, mechanical property, and piezoresistive characteristics of the composite film at different MWCNTs contents were characterized and discussed. When the mass fraction of MWCNTs in the composite film was 5%, the composite film exhibited a high electrical conductivity of 9.56 S/m while maintaining ideal mechanical properties, and the film thickness was just about 180 mu m. The relationship between electrical signals and film strain was performed. The piezoresistive characteristic results demonstrated that the prepared composite film could be used as flexible strain sensor for human motion detection. The prepared thin MWCNTs/PDMS composite film in this paper illustrated high conductive and desired flexibility, and was an alternative material for human motion detection.