課題組水凝膠應(yīng)變傳感器最新研究結(jié)果在Journal of Materials Chemistry C 在線發(fā)表，這是課題組繼ACS Applied Materials & Interfaces之后在水凝膠領(lǐng)域的又一篇1區(qū)論文。
該工作得到了國(guó)家自然科學(xué)青年基金、陜西省自然科學(xué)基礎(chǔ)研究計(jì)劃項(xiàng)目、陜西省高校科協(xié)青年人才托舉計(jì)劃項(xiàng)目、陜西省普通高校青年杰出人才支持計(jì)劃的資助。
謝謝大家的支持！
文章信息：
Zhiwen Wang, Hongwei Zhou,* Jialiang Lai, Bo Yan, Hanbin Liu, Xilang Jin,* Aijie Ma, Gai Zhang, Weifeng Zhao, Weixing Chen*，Extremely Stretchable and Electrically Conductive Hydrogels with Dually Synergistic Network for Wearable Strain Sensors, Journal of Materials Chemistry C, 2018, Accepted. (SCI一區(qū)，IF=5.976)
鏈接：
http://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc02505c/unauth#!divAbstract
摘要：
Flexible strain sensors are highly repuired in soft robotics, human-machine interfaces and health monitoring devices. However, it is still a big challenge to construct strain sensors with excellent mechanical properties and broad sensing range. In this study, a kind of extremely stretchable and electrically conductive hydrogels with dually synergistic networks are fabricated for wearable resistive-type strain sensors. Dually synergistic networks are composed of soft poly(acrylic acid) (PAA) network and rigid conductive polyaniline (PANI) network. PAA network is crosslinked by amphiphilic block copolymers, PANI network is chemically doped and ionically crosslinked by phytic acid and these two networks are further interlocked by physical entanglements, hydrogen bonds and ionic interactions. The resulting hydrogels have high tensile strength, controllable conductivity and large tensile deformation (1160%). Moreover, the hydrogels are utilized for fabricating strain sensors with good sensitivity and wide sensing range (0~1130%). The high performances of hydrogels make such strain sensors suitable for wearable devices monitoring both subtle and large strains induced by human motions, including moving of two hands, bending of joints, conducting of gestures and swallowing.