自愈水凝胶
瞬态(计算机编程)
自愈
材料科学
韧性
聚丙烯酰胺
流变学
极限抗拉强度
复合材料
聚合
化学工程
纳米颗粒
聚合物
高分子化学
纳米技术
计算机科学
病理
工程类
替代医学
操作系统
医学
作者
Hong Liang,Li Liu,Zhimin Zhang,Jiazhuo Song,Si‐Liang Li,Kexin Chen,Guanghui Gao,Yu Wang
出处
期刊:Soft Matter
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:18 (9): 1885-1895
被引量:6
摘要
In this investigation, transient crosslinking was constructed to obtain a hydrogel with excellent mechanical and self-healing properties. Firstly, core-shell particles with hydrophilic amino groups were prepared by emulsion polymerization and subsequently dispersed into hydrophobic association polyacrylamide hydrogels. Transient crosslinking was constructed through hydrogen bonding between core-shell particles and polyacrylamide. As a result, the hydrogels exhibited a tensile strength of 1.4 MPa and self-healing efficiency of 98% at 24 h. Furthermore, reconstruction of the transient crosslinking was confirmed from rheological measurements. Therefore, the essential reinforcement principle based on transient crosslinking would open a novel strategy to obtain hydrogels with superior toughness and self-healing properties.
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