| 초록 |
Hydrogles are two- or multicomponent systems consisting of a tree-dimensional network of polymer chains and water that fills the space between macromolecules. In this study, poly(N-vinyl pyrrolidone)/microfibrillated cellulose(MFC) blend hydrogels have been prepared using the electon beam irradiation technique. The chemical and physical properties of the hydrogels such as the gel fraction, swelling behavior, and moisture retention were investigated. Compared with pure PVP hydrogel, PVP/MFC blend hydrogels showed high gel strength and flexibility. Since the content of MFC in PVP/MFC blend hydrogels increased, the mechanical properties and the degree of swelling increased, but gel fraction decreased. The optimal properties of PVP/MFC blend hydrogels were obtained in a composition of PVP/MFC=1/1 at 25 kGy. The prepared composite hydrogel was further characterized by SEM, FT-IR, and Universal testing machine. |
