| 초록 |
Polymer-nanoparticle composite of high density polyethylene modified tungsten (VI) oxide (WO3) was synthesized through in situ Ziegler-Natta polymerization. This polymerization method consists of grafting a titanium tetrachloride Ziegler-Natta Catalyst onto the surface of WO3 nanoparticles followed by surface-initiated polymerization of ethylene to generate polymer brushes on the surface. Focusing on concentration of WO3 fillers implanted in the HDPE polymer matrix, the behavior and dependency of homo HDPE and its composite with WO3 fillers’ nonisothermal crystallization kinetics and morphology of crystallites were studied, using differential scanning calorimetry and polarized optical microscopes, respectively. The Avrami, Ozawa and Seo equations were applied to describe the nonisothermal crystallization kinetics and to determine the crystallization parameters of the HDPE modified WO3 composites. |
