| 초록 |
Various studies of hydrogels have been conducted for water scarcity problem worldwide since hydrogels can provide solutions for desalination, distillation, and purification of water. In this study, we create various types of pore structures in hydrogels and measure their swelling and deswelling kinetics. Poly(N-isopropylacrylamide) (PNIPAM) hydrogels were synthesized by free-radical polymerization with N-isopropylacrylamide as a monomer (NIPAM) and N,N-methylenebisacrylamide (MBA) as a crosslinker. Pores were created by injecting porogens such as 3D printed scaffolds and microparticles. The swelling kinetics of the hydrogels of each pore structure were compared, maintaining the porosity created by porogens at 50%. We also stacked hydrogels and measured the rate of water diffusion in the vertical direction. It was investigated that hydrogel with pore structure made by 3D printed scaffold was most effective for pulling up and transporting water for application to a solar evaporator. |
