A self-healing conductive and stretchable aligned carbon nanotube/hydrogel composite with a sandwich structure. Issue 41 (11th October 2018)

• Record Type: Journal Article
• Authors: Dai, Shengping; Zhou, Xiaoshuang; Wang, Shuai; Ding, Jianning; Yuan, Ningyi
• Is Part Of: Nanoscale. Volume 10:Issue 41(2018)
• Page Start: 19360
• Page End: 19366
• Publication Date: 2018-10-11
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr05897k
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Self-healing conductive elastomers have emerged as a class of novel materials that are important for fabricating human-motion sensors, soft robots and healthcare monitoring systems. Abstract : Self-healing conductive elastomers have emerged as a class of novel materials that are important for fabricating human-motion sensors, soft robots and healthcare monitoring systems. Herein, we report on a hydrogel of modified poly(γ-glutamic) acid polymer chains crosslinked by coordination complexes, which exhibits good stretchability (1375%), long-term stability (more than 40 days), and self-healing ability (99.0 ± 1.5% in 3 h). Furthermore, a "sandwich" structure composite was fabricated, which is composed of self-healing hydrogels and Au nanograin-decorated aligned multiwall carbon nanotube sheets. It possesses fast self-healing ability, a low stable electronic resistance of 10 ± 1 Ω sq −1, in the temperature range of −40–90 °C, the humidity range of 10–90%, and a stretching range up to 200%.