Journal
POLYMERS
Volume 11, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/polym11040680
Keywords
cure kinetics; tensile strength; epoxy resin; nanocomposite
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Funding
- 7th Generation Ultra Deep Water Drilling unit Innovation Project
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In this study, the curing kinetics of the phenolic amine/epoxy resin system were investigated by nonisothermal differential scanning calorimetry (DSC). The model-free isoconversional method of Ozawa-Flynn-Wall reveals a dependence of E (activation energy) on conversion (), which interprets the autocatalytic curing reaction mechanism of the phenolic amine/epoxy resin system. Studies on the effects of nano-SiO2 particles on the tensile properties and tensile fracture face morphology of nanocomposites show that the uniform dispersion of SiO2 nanoparticles plays an important role in promoting the tensile performance of nanocomposites. Additionally, increases of 184.1% and 217.2% were achieved by adding 1.5% weight parts of nano-SiO2 in composites for the tensile strength and tensile modulus, respectively.
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