Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization.

ABSTRACT: 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 cente

SUBMITTER: Liu J 

PROVIDER: S-EPMC10453224 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature