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自修復復合水凝膠應變傳感器研究在Colloids and Surfaces A在線發表

題目:

Self-repairing flexible strain sensors based on nanocomposite hydrogels for whole-body monitoring

作者:

Hongwei Zhou, Zhaoyang Jin, Ying Yuan, Gai Zhang, Weifeng Zhao, Xilang Jin, Aijie Ma, Hanbin Liu, Weixing Chen.

文章信息:

Colloids and Surfaces A, 2020, 592, 124587

論文鏈接:

https://authors.elsevier.com/a/1abcp3IywUFMJf

摘要:

Flexible strain sensors based on extensible hydrogels are extensively investigated for human motion monitoring, but the performances of such strain sensors are limited by failure or high residual strain of hydrogels. Herein, self-repairing flexible strain sensors are fabricated with poly(AA-co-SMA)/c-CNF/Fe3+ nanocomposite hydrogels (AA: acrylic acid, SMA: stearyl methacrylate, c-CNF: carboxylate modified cellulose nanofibril). Because the nanocomposite hydrogels are fully supramolecularly cross-linked by hydrophobic association and ionic interaction, the flexible strain sensors can repair themselves upon damage and recover their sensing ability. Compared with other hydrogel-based self-repairing sensors, the flexible strain sensors in this work have intrinsically reversible sensing ability based on the improved resilience of the nanocomposite hydrogel by introducing c-CNF. In addition, such sensors also have integrated large sensing range (0~800 %), low response time (0.25?s), high sensitivity (strain 0~300 %, gauge factor?=?1.9; strain 400 %~800 %, gauge factor?=?4.4) and excellent durability (~1000 cycles) for guaranteeing their potential applications in whole-body monitoring.

恭喜靳趙陽同學,再接再厲!

感謝各位審稿專家提出的寶貴意見和建議!

感謝國家自然科學青年基金(No. 51603164)、陜西省普通高校青年杰出人才計劃,陜西省自然科學基礎研究計劃(2019JM-124, 2016JQ5036)、陜西省高校科協青年人才托舉計劃項目(No. 20170706)對本工作的資助。

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