Release Time:2019-03-13  Hits:

Indexed by: Journal Article

Date of Publication: 2018-12-28

Journal: CHEMISTRYSELECT

Included Journals: Scopus、SCIE

Volume: 3

Issue: 48

Page Number: 13736-13742

ISSN: 2365-6549

Key Words: flexible; conductive; interfacial modification; strain sensor; polymer fiber

Abstract: Portable devices have become lightweight, flexible, and even stretchable such that skin-like electronics are widely applicable, including in biomedical devices, soft robotics, and human/machine interfaces. Rendering these devices soft and flexible is highly desirable, as this would enable them to interact seamlessly with human skin and improve their wearing comfort. We demonstrate a convenient but effective method to fabricate flexible conducting films. These films consist of electrospun polyurethane (PU) fibers as the flexible substrate onto which copper was deposited. These Cu-PU films have excellent conductivity, and their resistance only increases slightly after extensive folding, even when folded into a paper crane with a resistance of 1.8 omega. Furthermore, Cu-PU films can sense tension strength and exhibit stable Joule electrothermal performance. The Cu-PU-based heating glove could be heated to 40 degrees C in 30 s by applying 2 V. The simple but effective procedure presented here is suitable to fabricate flexible conducting film and may also promote the development of portable and flexible electronic products.