| 초록 |
Multi-layered hydrogels has been studied for various applications including actuators and sensors. We designed a multi-layered hydrogel with a different expansion ratio. Each layer of multi-layered hydrogel was composed of acrylamide (AAm) and N,N’-methylenebisacrylamide (MBA) at different concentrations and induced self-folding due to the difference in the expansion ratio of each layer. The radius of curvature of the multi-layered hydrogel was adjusted by the elastic modulus and expansion ratio of each layer. The physical properties of each layer were controlled by the composition ratio. In this study, the difference with the curvature of the produced hydrogel and the curvature calculated by conventional equation is discussed. Additionally, we present the diffusion layer generated in the produced multi-layered hydrogel and analyze the effect of diffuse layer. |
