Synthesis of silica coated zinc oxide-poly(ethylene-co-acrylic acid) matrix and its UV shielding evaluation
- Authors
- Ramasamy, Mohankandhasamy; Kim, Yu Jun; Gao, Haiyan; Yi, Dong Kee; An, Jeong Ho
- Issue Date
- Mar-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Nanostructures; Chemical synthesis; Photoelectron spectroscopy; Electron microscopy; Catalytic properties
- Citation
- MATERIALS RESEARCH BULLETIN, v.51, pp.85 - 91
- Journal Title
- MATERIALS RESEARCH BULLETIN
- Volume
- 51
- Start Page
- 85
- End Page
- 91
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12812
- DOI
- 10.1016/j.materresbull.2013.12.004
- ISSN
- 0025-5408
- Abstract
- Silica coated zinc oxide nanoparticles (Si-ZnO NPs) (7 nm thick) were synthesized successfully and melt blended with poly(ethylene-co-acrylic acid) (PEAA resin) to improving ultraviolet (UV) shielding of zinc oxide nanoparticles (ZnO NPs). The photostability of both the ZnO NPs and Si-ZnO NPs were analyzed by the difference in photoluminescence (PL) and by methylene blue (MB) degradation. Photo-degradation studies confirmed that Si-ZnO NPs are highly photostable compared to ZnO NPs. The melt blended matrices were characterized by field emission scanning electron microscopy interfaced with energy dispersive X-ray spectroscopy (FE-SEM-EDX). The UV shielding property was analyzed from the transmittance spectra of UV-visible (UV-vis) spectroscopy. The results confirmed fine dispersion of thick Si-ZnO NPs in the entire resin matrix. Moreover, the Si-ZnO/PEAA showed about 97% UV shielding properties than the ZnO/PEAA. (C) 2013 Elsevier Ltd. All rights reserved.
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