Issue 8, 2007
From the journal:

Journal of Materials Chemistry

Particle surface engineering effect on the mechanical, optical and photoluminescent properties of ZnO/vinyl-ester resin nanocomposites

Zhanhu Guo,*a   Suying Wei,b   Brian Shedd,a   Roberto Scaffaro,a   Tony Pereiraa  and  H. Thomas Hahn*a  

* Corresponding authors

a Multifunctional Composites Lab (MCL), Mechanical & Aerospace Engineering and Materials Science & Engineering Department, University of California, Los Angeles, CA 90095, USA

b Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA

Abstract

Zinc oxide (ZnO) nanoparticles functionalized with a bi-functional coupling agent methacryloxypropyl-trimethoxysilane (MPS) were used to fabricate a vinyl-ester resin polymeric nanocomposite, which shows an improved interfacial interaction between the particle and matrix. As a result, in comparison to the unmodified particle-filled nanocomposites, the functionalized particle-filled composites possessed higher resistance to thermal degradation, and demonstrated improved UV shielding and enhanced photoluminescent properties. The more uniform particle dispersion, passivation of the particle surface with MPS and increased oxygen vacancies were justified to contribute to the increased thermal stability and the enhanced photoluminescent properties. Significant tensile strength improvement was closely related to the observed uniform particle distribution and the intimate interfacial interaction through the strong chemical bonding.

Graphical abstract: Particle surface engineering effect on the mechanical, optical and photoluminescent properties of ZnO/vinyl-ester resin nanocomposites

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Article information

DOI
https://doi.org/10.1039/B613286C
Article type
Paper
Submitted
13 Sep 2006
Accepted
22 Nov 2006
First published
01 Dec 2006

J. Mater. Chem., 2007,17, 806-813

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Particle surface engineering effect on the mechanical, optical and photoluminescent properties of ZnO/vinyl-ester resin nanocomposites

Z. Guo, S. Wei, B. Shedd, R. Scaffaro, T. Pereira and H. T. Hahn, J. Mater. Chem., 2007, 17, 806 DOI: 10.1039/B613286C

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