文献类型：期刊文献

英文题名：A study of conductive thermoplastic elastomeric polyurethane and graphene nanocomposite thin films for application to flexible electrical sensors

作者：Debao, Zhou[1]; Bai, Jing[2]; Yang, Ning[3]; Li, Xianguo[4]; Miao, Changyun[4]; Zhao, Linhui[5]

第一作者：Debao, Zhou

通讯作者：Debao, Zhou

机构：[1] Department of Mechanical and Industrial Engineering, University of Minnesota Duluth, Duluth, MN, United States; [2] Department of Electrical Engineering, University of Minnesota Duluth, Duluth, MN, United States; [3] School of Materials Science and Engineering, Tiangong University, Tianjin, China; [4] School of Electronic and Information Engineering, Tiangong University, Tianjin, China; [5] College of Robotics, Beijing Union University, Beijing, China

第一机构：Department of Mechanical and Industrial Engineering, University of Minnesota Duluth, Duluth, MN, United States

年份：2021

卷号：25

期号：3

起止页码：162-168

外文期刊名：Materials Research Innovations

收录：EI(收录号：20202608873689);Scopus(收录号：2-s2.0-85086847567)

语种：英文

外文关键词：Graphene - Hysteresis - Nanocomposite films - Nanocomposites - Plastic films - Polyurethanes - Reinforced plastics - Silicones

摘要：Pressure-sensitive thin film is one of the major components in flexible electrical sensors (e-skin sensors). The thin film are normally conductive and durable. However, its applications are often limited, due to its big noise and hysteresis. In this research, we developed a new nanocomposite made with thermoplastic-polyurethane (TPU) and graphene to measure contact pressure. To ensure a minimum noise level in the measurement, we prepared it through an iterative heating, sonication, and phase inversion process. Then we studied the relationship between the measured resistance and applied force through the comprehensive consideration of the graphene weight percentage, the size of the sensing elements, and the loading/unloading speed. We also characterised its hysteresis and repeatability. Finally, the nanocomposite with the best comprehensive results was selected and stencil-printed in the holes on a polydimethylsiloxane film to be used as the sensing element of e-skin sensors. ? 2020 Informa UK Limited, trading as Taylor & Francis Group.