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Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization

Underwater adhesion involves bonding substrates in aqueous environments or wet surfaces, with applications in wound dressing, underwater repairs, and underwater soft robotics. In this study, we investigate the underwater adhesion properties of a polyacrylic acid hydrogel coated substrate. The underw...

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Autores principales: Liu, Junjie, Hu, Nan, Xie, Yao, Wang, Peng, Chen, Jingxiang, Kan, Qianhua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10453224/
https://www.ncbi.nlm.nih.gov/pubmed/37623071
http://dx.doi.org/10.3390/gels9080616
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author Liu, Junjie
Hu, Nan
Xie, Yao
Wang, Peng
Chen, Jingxiang
Kan, Qianhua
author_facet Liu, Junjie
Hu, Nan
Xie, Yao
Wang, Peng
Chen, Jingxiang
Kan, Qianhua
author_sort Liu, Junjie
collection PubMed
description Underwater adhesion involves bonding substrates in aqueous environments or wet surfaces, with applications in wound dressing, underwater repairs, and underwater soft robotics. In this study, we investigate the underwater adhesion properties of a polyacrylic acid hydrogel coated substrate. The underwater adhesion is facilitated through hydrogen bonds formed at the interface. Our experimental results, obtained through probe-pull tests, demonstrate that the underwater adhesion is rapid and remains unaffected by contact pressure and pH levels ranging from 2.5 to 7.0. However, it shows a slight increase with a larger adhesion area. Additionally, we simulate the debonding process and observe that the high-stress region originates from the outermost bonding region and propagates towards the center, spanning the thickness of the target substrate. Furthermore, we showcase the potential of using the underwater adhesive hydrogel coating to achieve in-situ underwater bonding between a flexible electronic demonstration device and a hydrogel contact lens. This work highlights the advantages of employing hydrogel coatings in underwater adhesion applications and serves as inspiration for the advancement of underwater adhesive hydrogel coatings capable of interacting with a wide range of substrates through diverse chemical and physical interactions at the interface.
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spelling pubmed-104532242023-08-26 Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization Liu, Junjie Hu, Nan Xie, Yao Wang, Peng Chen, Jingxiang Kan, Qianhua Gels Article Underwater adhesion involves bonding substrates in aqueous environments or wet surfaces, with applications in wound dressing, underwater repairs, and underwater soft robotics. In this study, we investigate the underwater adhesion properties of a polyacrylic acid hydrogel coated substrate. The underwater adhesion is facilitated through hydrogen bonds formed at the interface. Our experimental results, obtained through probe-pull tests, demonstrate that the underwater adhesion is rapid and remains unaffected by contact pressure and pH levels ranging from 2.5 to 7.0. However, it shows a slight increase with a larger adhesion area. Additionally, we simulate the debonding process and observe that the high-stress region originates from the outermost bonding region and propagates towards the center, spanning the thickness of the target substrate. Furthermore, we showcase the potential of using the underwater adhesive hydrogel coating to achieve in-situ underwater bonding between a flexible electronic demonstration device and a hydrogel contact lens. This work highlights the advantages of employing hydrogel coatings in underwater adhesion applications and serves as inspiration for the advancement of underwater adhesive hydrogel coatings capable of interacting with a wide range of substrates through diverse chemical and physical interactions at the interface. MDPI 2023-07-29 /pmc/articles/PMC10453224/ /pubmed/37623071 http://dx.doi.org/10.3390/gels9080616 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Junjie
Hu, Nan
Xie, Yao
Wang, Peng
Chen, Jingxiang
Kan, Qianhua
Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title_full Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title_fullStr Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title_full_unstemmed Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title_short Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization
title_sort polyacrylic acid hydrogel coating for underwater adhesion: preparation and characterization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10453224/
https://www.ncbi.nlm.nih.gov/pubmed/37623071
http://dx.doi.org/10.3390/gels9080616
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