Electro-thermally driven biaxial bending artificial muscle based on oriented graphite nanoplate nanocomposite/polyimide complex structure. (December 2022)

• Record Type: Journal Article
• Authors: Yu, Yangtao; Su, Zhiwei; Chen, Wei; Yang, Zhiyue; Yang, Ketong; Meng, Fanzhou; Qiu, Shengyang; Wu, Xulei; Yao, Hai; Li, Jing; Ai, Jintong; Lv, Luying; Dong, Yuzhen; Wang, Huatao
• Is Part Of: Composites. Volume 163(2022)
• Publication Date: 2022-12
• Subjects: A. Nanocomposites -- A. Multifunctional composites -- B. Thermal properties -- E. Assembly; CTE coefficient of thermal expansion -- GN graphite nanoplate nanocomposite -- PI polyimide -- CNTs carbon nanotubes -- rGO graphene oxide -- GNPs graphite nanoplates -- CMC sodium carboxymethyl cellulose -- PDMS polydimethylsiloxane; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2022.107164
• Languages: English
• ISSNs: 1359-835X

Abstract

Highlights: The GNP/PI bi-layer films are fabricated by a simple and cost-effective approach which have light weight and large deformation. Driven by the voltage of 10 V, the artificial muscle is able to reversibly reach a shrinkage rate of 11% and a maximum lifting height of 2.5 cm with the object weight of 5.0 g. Based on the GN/PI bi-layers, a walking robot has also been designed to achieve a large displacement under the voltage of about 20.0 V. Abstract: In recent years, artificial muscle is of great research interest due to its promising application. However, low deformation, complicated fabrication process, and high cost hinder their development. Herein, electro-thermally driven biaxial bending artificial muscle based on oriented graphite nanoplate nanocomposite ( GN )/polyimide ( PI ) complex structure is successfully fabricated by cost-effective process utilizing coefficient of thermal expansion difference between them. GN / PI bi-layer films were further assembled and packaged into multi-unit biaxial bending actuator, which could extend and contract like artificial muscle. The unique characteristics of large deformation, easy control, low cost and simple fabrication process distinguish the GN / PI bi-layer based artificial muscle from others. Driven by the voltage of 10 V, the artificial muscle could reversibly reach a shrinkage rate of 11% and a maximum lifting height of 2.5 cm with the object weight of 5.0 g. Moreover, a walking robot has also been designed to achieve a large displacement.