期刊
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
卷 6, 期 4, 页码 538-542出版社
VIETNAM NATL UNIV
DOI: 10.1016/j.jsamd.2021.07.001
关键词
Carbon nanotubes; Piezoresistivity; Poisson's ratio
资金
- Ministry of Science and Technology of Taiwan [MOST-109-2811-M-007-570]
- High Entropy Materials Center from The Featured Areas Research Center Program by the Ministry of Education (MOE) in Taiwan [108QR001J4]
Composites made from multi-walled carbon nanotubes and polydimethylsiloxane exhibit excellent piezoresistivity at elastic limits, with high sensitivity and matched resistance changes during bending and twisting. Pulse-like resistance changes are attributed to the rapid increase in intertube spacing. The movement and segmentation of tube aggregates explain the tube mobility range and sensing mechanism.
Composites made from multi-walled carbon nanotubes and polydimethylsiloxane exhibit an excellent piezoresistivity at elastic limits where strain sensitivity reaches 0.93-0.96 and resistance changes due to stretching and compressing matches with loading histograms. Resistance change becomes pulse-like as the samples are bent and/or twisted, attributed to the rapid increase in intertube spacing. Straining induces movements and segmentations of tube aggregates with tube mobility ranging at 0.1-90 nm/s. Intertube barrier driven sensing mechanism is viscoelasticity related and is therefore interpreted on the basis of spring-dashpot models. (C) 2021 The Authors. Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据