초록 |
Porous structures are essential for the rapid reaction rate of hydrogels, and methods such as gas bubbling, freeze drying, and electrospinning have been studied to produce them. Temperature-sensitive porous hydrogels are completely reversible and exhibit faster swelling and deswelling with temperature changes before and after LCST than with non-porous hydrogels due to their high specific surface area. In this study, a porous structure was introduced into a hydrogel using a sacrificial material, and the swelling kinetic behavior of the porous hydrogel thus produced was observed. The fabricated porous hydrogel has a porous structure inside and has a smooth film surface, which makes it easy to adhere to other polymers. Therefore, it can be applied to soft actuators and soft robots by forming layers with other polymers besides artificial muscles and drug carriers. |