Mechanical Properties of Nano/Micro-Silica Particles Bidispersed Epoxy Composites

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Mechanical properties of nano/micro-silica particles bidispersed epoxy composites were investigated based on experimental results. The composite specimens varied with different compositions of nano and micro-silica particles (240 nm and 1.56$m) were prepared with the constant volume fraction, 0.30. The thermo-viscoelastic properties for the composites and the neat epoxy measured in the temperature ranges from 123 K to 523 K and compared to theoretical results according to Lewis and Nielsen’s law with the maximum particle packing given by Ouchiyama and Tanaka’s model. In addition, fragility derived from the thermo-viscoelasticity measurements was used to characterize the strength and fracture toughness of the composites. From results, we found that the thermo-viscoelasticity of the composite was dependent on nano and micro-particles packing, and its strength and fracture toughness were effectively evaluated by fragility.

Info:

Periodical:

Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim

Pages:

1507-1510

DOI:

10.4028/www.scientific.net/KEM.345-346.1507

Citation:

S. C. Kwon et al., "Mechanical Properties of Nano/Micro-Silica Particles Bidispersed Epoxy Composites ", Key Engineering Materials, Vols. 345-346, pp. 1507-1510, 2007

Online since:

August 2007

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Price:

$35.00

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