单宁酸
植酸
自愈水凝胶
化学
人体运动
材料科学
纳米技术
运动(物理)
高分子化学
生物化学
有机化学
物理
经典力学
作者
Jiegao Xie,Yafei Qin,Yu‐Jia Zeng,Rong Yuan,Xinyu Lu,Xiaojing Yang,Erjiong Wei,Chenkai Cui
出处
期刊:Soft Matter
[The Royal Society of Chemistry]
日期:2024-01-01
卷期号:20 (3): 640-650
被引量:1
摘要
Conductive hydrogels have been widely researched for their potential applications in soft electronic devices. Creating environmentally friendly and multifunctional high-strength hydrogels for high-performance devices remains a significant challenge. This study employs the biodegradable material polyvinyl alcohol (PVA) as the primary component, with phytic acid (PA) and tannic acid (TA) as reinforcing phases, to create a multifunctional, high-strength "green" hydrogel. Through the multiple complexations of two bio-enhancing phases with the PVA main chain, this hydrogel attains ultra-high tensile strength (9.341 MPa), substantial toughness (4.262 MJ m-3), and extensive fracture strain (> 1000%), making it a representative with both mechanical performance and antibacterial capabilities. Additionally, it exhibits a low strain sensing limit (0.5%) and excellent durability (500 cycles under 50% strain). This work introduces a novel strategy of combining biodegradable materials with biomass to fabricate multifunctional hydrogels suitable for human motion monitoring and 2D pressure distribution.
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