earticle

영어

Polyvinyl alcohol (PVA) hydrogel is attracting widespread attention for its biocompatibility, sterilization, and transparency, which are vital properties when it is used as material for articular cartilage or contact lenses. However, the inherent shortcomings of PVA hydrogel, such as poor thermal stability and mechanical properties limit its application. In this study, PVA hydrogel was reinforced with cellulose nanocrystal (CNC) coated by a surfactant (e.g., Span 60 and Tween 20). And then characterized their properties by DSL, TGA, FT-IR, and swelling ratio. We confirmed the surfactant-coating on CNC was successfully carried out from FT-IR, and PVA hydrogel was increased thermal degradation temperature from 330 oC to 351 oC with increasing S-CNC concentration. In addition, the swelling ratio of PVA hydrogel was decreased dramatically from 640% to 50% with increasing S-CNC concentration.