Curing Behavior and Mechanical Properties of DGEBA/Phenol Novolac Hybrid Epoxy Resin according to Curing Accelerator Content
Vol. 57, No. 3, pp. 177-185,
Jun. 2020
10.12772/TSE.2020.57.177
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Abstract
In this study, the curing behaviors and mechanical properties of DGEBA/Phenol
novolac hybrid epoxy resin were investigated with respect to the curing accelerator content.
The addition of a curing accelerator promotes the reaction between the epoxy resin
and curing agent, and accordingly, differences occur in the curing behaviors and mechanical
properties of the epoxy resin. The curing behavior of the epoxy resin was analyzed
using DSC, and the thermal decomposition properties were confirmed through TGA. The
tanδ, flexural, and impact properties were measured and analyzed via morphological
observations. Consequently, it was determined that the curing accelerator content has a
great influence on the curing behavior of the epoxy resin, such as the cure rate and activation
energy, and also affects the mechanical properties of the resin.
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