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http://dx.doi.org/10.9726/kspse.2013.17.5.069

Mechanical properties of TiO2/epoxy resin nanocomposites  

Ahn, Seok-Hwan (A+LINC of PKNU, Pukyong National University)
Nam, Ki-Woo (Department of Materials Science and Engineering, Pukyong National University)
Moon, Chang-Kwon (Department of Materials Science and Engineering, Pukyong National University)
Publication Information
Journal of Power System Engineering / v.17, no.5, 2013 , pp. 69-77 More about this Journal
Abstract
The purpose of this study is to improve the properties of epoxy resin using the big-sized titanium oxide nanoparticles. The effects of particle weight fraction and shape of sample on the thermal and mechanical properties in titanium oxide reinforced epoxy resin has been investigated. In addition, the effect of particle dispersion situation on the mechanical properties of nanocomposites has been studied. As a result, the Tg was almost same regardless of the content of nanoparticles. Storage modulus increased up to the content of 3wt% particles and then decreased. Tensile strength and modulus of film-shaped sample with 1wt% was higher than the one of pure epoxy, while other composites were not. The tensile strength of dogbone-shaped sample with 1wt% was only higher than the one of pure epoxy, while other composites were lower than the one of pure epoxy. Tensile modulus of dogbone-shaped samples increased with the content of particles.
Keywords
Nanocomposites; cluster; dispersion agent; tensile strength; particle weight fraction; curing agent; glass transition temperature ($T_g$);
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