胶粘剂
材料科学
离子液体
粘附
离子键合
范德瓦尔斯力
吸收(声学)
水溶液
化学工程
复合材料
灵活性(工程)
纳米技术
共价键
分子
有机化学
化学
图层(电子)
离子
工程类
催化作用
统计
数学
作者
Binmin Wang,Chenyu Qiao,Yong‐Lei Wang,Xiaoxiao Dong,Wangqing Zhang,Yan Lü,Jiayin Yuan,Hongbo Zeng,Hong Wang
出处
期刊:ACS Nano
[American Chemical Society]
日期:2023-03-16
卷期号:17 (6): 5871-5879
被引量:23
标识
DOI:10.1021/acsnano.2c12767
摘要
Tremendous efforts have been devoted to exploiting synthetic wet adhesives for real-life applications. However, developing low-cost, robust, and multifunctional wet adhesive materials remains a considerable challenge. Herein, a wet adhesive composed of a single-component poly(ionic liquid) (PIL) that enables fast and robust underwater adhesion is reported. The PIL adhesive film possesses excellent stretchability and flexibility, enabling its anchoring on target substrates regardless of deformation and water scouring. Surface force measurements show the PIL can achieve a maximum adhesion of 56.7 mN·m–1 on diverse substrates (both hydrophilic and hydrophobic substrates) in aqueous media, within ∼30 s after being applied. The adhesion mechanisms of the PIL were revealed via the force measurements, and its robust wet adhesive capacity was ascribed to the synergy of different non-covalent interactions, such as of hydrogen bonding, cation−π, electrostatic, and van der Waals interactions. Surprisingly, this PIL adhesive film exhibited impressive underwater sound absorption capacity. The absorption coefficient of a 0.7 mm-thick PIL film to 4–30 kHz sound waves could be as high as 0.80–0.92. This work reports a multifunctional PIL wet adhesive that has promising applications in many areas and provides deep insights into interfacial interaction mechanisms underlying the wet adhesion capability of PILs.
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