Non-Stoichiometric Curing Effect on Dynamic Mechanical Properties of Bisphenol A-Type Epoxy Resins

Tadaharu ADACHI; Kozo OISHI; Masahiro HIGUCHI; Markus Karamoy UMBOH; Zoltan MAJOR

doi:10.11395/jjsem.13.s148

research-article

Non-Stoichiometric Curing Effect on Dynamic Mechanical Properties of Bisphenol A-Type Epoxy Resins

Tadaharu ADACHI, Kozo OISHI, Masahiro HIGUCHI, Markus Karamoy UMBOH, Zoltan MAJOR

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Keywords: Epoxy Resin, Non-stoichiometric Curing, Dynamic Compression, Mechanical Properties, Crosslinking Density, Strain Rate

JOURNAL FREE ACCESS

2013 Volume 13 Issue Special_Issue Pages s148-s153

DOI https://doi.org/10.11395/jjsem.13.s148

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Abstract

The effects of non-stoichiometric curing on the dynamic compressive properties of bisphenol A-type epoxy resins were investigated experimentally to take into consideration the relation between mechanical properties and network structures in the epoxy resin. The yield stresses were found to be approximately linear to the strain rate regardless of crosslinking densities. Stress after yielding was clarified to rapidly reduce in epoxy resins with lower crosslinking densities and for higher strain rates.

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