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自愈合水凝膠應(yīng)變傳感器研究在Macromolecular Materials and Engineering在線發(fā)表


題目:

High-performance flexible sensors of self-healing, reversibly adhesive and stretchable hydrogels for monitoring large and subtle strains

作者:

Hongwei Zhou, Shuangli Li, Hanbin Liu, Bohui Zheng, Xilang Jin, Aijie Ma, Weixing Chen

文章信息:

Macromolecular Materials and Engineering, 2019, 1900621

論文鏈接:

https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.201900621

摘要:

Flexible sensors are becoming required in heath monitoring and human–machine interfaces, but it is still a challenge to develop flexible sensors with integrated high performances. Herein, high‐performance flexible sensors are fabricated that are self‐healing, reversibly adhesive, and utilizing stretchable hydrogels, which are composed of a pluronic F127 diacrylate (F127DA) cross‐linked poly(acrylic acid) (PAA) network and polydopamine (PDA), and further cross‐linked by Fe3+. The unique structure endows the resulting hydrogels (PAA‐PDA‐Fe3+ hydrogels) excellent self‐healing property, reversible adhesion property, mechanical stretchability, and electrical conductivity. On the basis of the excellent properties of PAA‐PDA‐Fe3+ hydrogels, flexible sensors with large sensing range (0–575%), high sensitivity (GF = 6.31), low response time (0.25 s), and excellent robustness (>500 cycles) are assembled and further applied in detecting both large and subtle strains induced by human motions and water ripple. Overall, this work not only provides an alternative clue to construct multi‐functional hydrogels, but also offers a new kind of high‐performance materials for flexible electronic devices, especially those for health monitoring and human–machine interface.

恭喜李雙利同學(xué),再接再厲!


感謝各位的幫助和支持!

感謝國家自然科學(xué)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(xué)基礎(chǔ)研究計劃(2019JM-124, 2016JQ5036)、陜西省高??茀f(xié)青年人才托舉計劃項(xiàng)目(No. 20170706)對本工作的資助。