Highly Stretchable, Transparent Hydrogel for Electromagnetic Interference Shielding

• DOI: 10.1002/sstr.202400486
• Publication Date: 2024-12-12T06:14:23Z
• Authors: Yanghang Lian; Huagao Wang; Lulu Liu; Li Guan; Mengmeng Lin; Quanlin Li; Xiaoqin Guo; Zhen Liu; Peng Chen; Biao Zhao; Rui Zhang
• Keywords: 02 engineering and technology; 0210 nano-technology

The demand for transparent electromagnetic interference (EMI) shielding materials has intensified, driven by the shortcomings of conventional materials, which exhibit limited light transmittance properties and struggle to perform effectively in complex environments. Herein, a conductive, stretchable, adaptable P(AM ‐co ‐AA) hydrogel is developed cross‐linking acrylamide (AM) with acrylic acid (AA). hydrophilic groups contained AA AM endow hydrogels transmission over 80%. introduction carboxyl group acyl amino provides good hydrogen bonding environment, rich polymer network structure formed appropriate monomer ratio more conducive mechanical EMI hydrogels. demonstrates favorable properties, boasting maximum strain at break 1322%. Additionally, performance as high 37 dB. Even when subjected external forces, maintains total effectiveness 20 dB level 150%. In this work, ideas are provided prepare stretchable excellent application environment.