| 초록 |
In this study, we report a new type of smart fluid named as electrophotorheological (EPR) fluid, which is dually responsive to electric field (E fields) and lights. Particularly, EPR material was synthesized by decoration of photosensitive spiropyran (SP) molecules onto the surface of SiO2 nanoparticles. Finally, EPR fluid is formulated by dispersing EPR materials into the specially designed EPR dispersing medium. Under our experimental condition, EPR fluid showed a high EPR performance (ca. 115 Pa), which far exceeded its separate PR (ca. 0.8 Pa, only light application) and ER (ca. 57.5 Pa, only E field application) activity upon dual application of UV light and an E field. |
