| Abstract |
This research aims to draw inspiration from octopus sucker structures to develop a novel adhesive material applicable in various fields, including daily necessities, military weaponry, technology, and healthcare. Conventional adhesive materials rely on either dry physical adhesion or wet chemical adhesion mechanisms. However, dry adhesives often suffer structural degradation and reduced adhesion strength after multiple uses, and they struggle to adhere to moist surfaces. On the other hand, wet adhesives pose limitations due to chemical residue. To address these challenges, the research team references octopus sucker structures and creates nano-sized sucker arrays. These structures can adhere to both dry and moist surfaces, including micro-rough surfaces. However, the adhesion performance of these nano-suckers decreases with increasing surface roughness. Consequently, the project delves further into studying various octopus sucker structures, analyzing their adhesion capabilities in different environments, and mimicking the adhesive mechanisms of octopus suckers. The proposed solution involves developing biomimetic sucker structures using shape-memory polymers and silicone oil instead of the octopus′s mantle secretion. These structures, with fold patterns, can adhere to micro-rough surfaces and irregular contours while maintaining adhesion in humid conditions. The relationship between the dimensions, fold patterns, arrangements, and adhesion performance of biomimetic suckers will be thoroughly investigated to optimize adhesion. The research team will utilize Stöber silica colloidal particles and shape-memory polymers, employing spin-coating techniques to create biomimetic sucker arrays. Furthermore, the adhesion capabilities of these structures will be explored under different surface conditions. The ultimate goal is to develop a biomimetic sucker adhesive material that can undergo shape transformation at room temperature and possess reusable characteristics, meeting diverse applications. |
