文献类型：期刊文献

英文题名：Flexible conductive hydrogels through optimized interfacial connectivity of hybrid fillers toward efficient electromagnetic interference shielding and wearable strain sensors

作者：Wang, Yuqi[1,2] Huang, Jinrong[1] Zhao, Guiyan[2] Chen, Rui[1,2] Huang, Jinrui[3] Chang, Xiaohua[1] Li, Jiusheng[4] Zhu, Yutian[1]

第一作者：Wang, Yuqi

通信作者：Chang, XH[1];Zhu, YT[1];Li, JS[2]

机构：[1]Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Key Lab Organosilicon Mat Technol,Minist Educ, Hangzhou 311121, Zhejiang, Peoples R China;[2]Liaoning Petrochem Univ, Sch New Energy & Adv Mat, West Sect Dandong Rd, Fushun 113001, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[4]China Jiliang Univ, Ctr THz Res, Hangzhou 310018, Peoples R China

年份：2025

卷号：60

外文期刊名：COMPOSITES COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001601097800003)】；

基金：This work was supported by Key Project of Jiangsu Provincial Key Laboratory of Biomass Energy and Materials (JSBEM-S-202303) , Natu-ral Science Fund of Zhejiang Province (LRG25E030003, LMS25E030005) , and National Natural Science Foundation of China (62435017) .

语种：英文

外文关键词：Conductive hydrogel; Electromagnetic interference shielding; Strain sensor; Hybrid network; Human-machine interaction

摘要：Conductive hydrogels hold significant potential in wearable flexible sensors and electromagnetic interference (EMI) shielding materials owing to their tissue-mimetic mechanical compliance and water-rich porous structures. However, simultaneously achieving high EMI shielding efficiency (SE) and excellent mechanical properties remain a challenge. To address this issue, we present a hybrid conductive network strategy within the hydrogel system through incorporating carbon nanotubes and nickel-coated graphite into a hydrogel matrix. The resulting composite hydrogel demonstrates remarkable stretchability, reliability, and anti-fatigue capability, owing to the synergistic combination of the multi-dimensional filler network, abundant hydrogen bonds and electrostatic interactions within the gel network. More importantly, profiting from the synergy of moderate conductivity and internal water-rich environment of the gel, the composite hydrogel at a thickness of 2 mm exhibits an exceptional EMI SE of 58 dB in the X-band, which is superior to most of the EMI shielding hydrogels reported to date. In addition, integrating the hydrogel sensor with machine learning, precise and stable gesture recognition and remote control are realized with an accuracy of up to 100%. This work offers a novel perspective for advancing flexible hydrogel sensor technologies and underscores their vast potential in intelligent wearable devices, superb EMI shielding materials, and human-machine interactions.