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Multifunctional Underwater Adhesive Film Enabled by a Single-Component Poly(ionic liquid)
ACS Nano ( IF 15.8 ) Pub Date : 2023-03-16 , DOI: 10.1021/acsnano.2c12767
Binmin Wang 1 , Chenyu Qiao 2 , Yong-Lei Wang 3, 4 , Xiaoxiao Dong 1, 2 , Wangqing Zhang 1 , Yan Lu 4 , Jiayin Yuan 3 , Hongbo Zeng 2 , Hong Wang 1
Affiliation  

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.

中文翻译:

由单组分聚(离子液体)实现的多功能水下胶膜

已经付出了巨大的努力来开发用于现实生活应用的合成湿粘合剂。然而,开发低成本、坚固且多功能的湿粘合剂材料仍然是一个相当大的挑战。在此,报道了一种由单组分聚(离子液体)(PIL)组成的湿粘合剂,可实现快速和坚固的水下粘合。PIL胶膜具有优异的拉伸性和柔韧性,无论变形和水冲刷如何,都能固定在目标基材上。表面力测量表明 PIL 可以实现 56.7 mN·m –1的最大附着力在水性介质中的不同基材(亲水性和疏水性基材)上,在应用后约 30 秒内。PIL 的粘附机制通过力测量揭示,其强大的湿粘附能力归因于不同非共价相互作用的协同作用,例如氢键、阳离子-π、静电和范德华相互作用。令人惊讶的是,这种 PIL 粘合剂薄膜表现出令人印象深刻的水下吸音能力。0.7 毫米厚的 PIL 薄膜对 4-30 kHz 声波的吸收系数可高达 0.80-0.92。这项工作报告了一种多功能 PIL 湿粘合剂,它在许多领域具有广阔的应用前景,并提供了对 PIL 湿粘合能力背后的界面相互作用机制的深入见解。
更新日期:2023-03-16
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