Affiliation:
1. Department of Sports Medicine of the Second Affiliated Hospital, and Liangzhu Laboratory Zhejiang University School of Medicine Hangzhou 310058 China
2. Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine Zhejiang University School of Medicine Hangzhou 310058 China
3. Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine Haining 314400 China
4. China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou 310058 China
Abstract
AbstractAdhesives play a crucial role in modern everyday applications, prompting a growing environmental consciousness regarding their source, composition, utilization, and disposal. Sustainability concerns are frequently generated due to the complex or energy‐intensive manufacturing processes in the production of conventional water‐based adhesives. Here, a coacervate‐based snail‐inspired solvent‐free adhesive (SFA) is engineered by strategically modulating electrostatic interactions and molecular entanglement of two polypeptides under environmentally friendly conditions. The SFA has a record‐breaking adhesion strength of 28 MPa on ceramics, setting a new standard for bio‐based adhesives. The SFA demonstrates robust adhesion performance across a wide temperature ranging from −150 to 300 °C and allows for reusability without compromising adhesion properties. Moreover, it can be easily removed using a non‐toxic alkaline solution. The study presents a promising opportunity for developing high‐performance, reusable adhesives made from renewable materials suitable for industrial applications, relics repair, and even spacecraft processing.
Funder
National Natural Science Foundation of China
National Key Research and Development Program of China