Journal
CURRENT APPLIED PHYSICS
Volume 8, Issue 1, Pages 42-47Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cap.2007.04.010
Keywords
thin films; nanocomposites; thermal; mechanical; optical properties
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A series of poly(vinyl alcohol)/nano-ZnO composites were prepared by dispersing nano-ZnO in aqueous solutions containing mixtures of the biodegradable polymers poly(vinyl alcohol) (PVA) and poly(ethylene oxide) (PEO), and composite thin films were prepared by casting. The introduction of nano-ZnO into PVA/PEO mixed solutions significantly decreased the resistivity of the solutions. Ultraviolet absorption, thermal behaviour and visco-elastic properties of the thin films were determined as a function of nano-ZnO content up to 15 wt%. Optimum film properties were obtained with 1 wt% nano-ZnO, higher proportions of nano-ZnO resulting in agglomeration of ZnO particles and deterioration in film properties. The Forouhi and Bloomer model was used for the modelling of ZnO thin films. (c) 2007 Elsevier B.V. All rights reserved.
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