To improve the mechanical properties and adhesion of hydrogel coatings, strategies such as incorporating nano-silica, using interpenetrating polymer networks, and employing crosslinking agents can be effective. Additionally, creating composite materials with fibers enhances performance and structural integrity.

Also you can apply plasma treatment, roughening to improve the adhesion on contact area or dehydration partially on substrate may induce stronger hydrogen or van de Waals bonds.

Dear Lei Zhang, you should give information about the nature of the substrate, otherwise only general contributions are given. Anyway, if you can't do that, just search with the keyword "seizing in composites". Hope this will be helpful. My Regards