Fabrication of Functional Wrinkles at Hydrogel Interfaces
발표자
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초록
내용
Geometry of the surface and the interface are important because they are always in contact with the external environments or the other materials. In this study, we investigated the fabrication of wrinkles on the hydrogel surfaces or at the hydrogel interfaces. The wrinkling wavelength and amplitude could be controlled. Active wrinkle on the surface of the thermoresponsive hydrogel could be switched to a flat and wrinkle surface by changing the temperature. Moreover, a novel hydrogel adhesion utilizing swelling-induced wrinkling gel films was developed. Adhered gels detached without damage to their surfaces when the wrinkle structures were disrupted by peeling of the wrinkled film. By using wrinkle structure at adhesive interfaces, both strong adhesion and easy detachment of hydrogels are achieved.