Abstract
A non-invasive ultrasonic transmission method was applied to on-line monitor the curing behavior of the nanocomposites based on epoxy matrix. Effects of dispersion and interfacial adhesion of the nanofiller on high frequency dynamic mechanical properties during curing process of the nanocomposites were discussed. The typical nanofillers, multi-wall carbon nanotubes (p-MWCNTs) were selected, which were doped with graphene oxides (GOs), and dispersed in epoxy resin. By measuring the velocity and attenuation coefficient of longitudinal ultrasonic waves throughout the entire curing cycle, the longitudinal storage modulus and loss tangent of the epoxy nanocomposites were obtained. And the curing kinetics of the epoxy matrix nanocomposites was analyzed based on the Hsich non-equilibrium fluctuation theory. The results proved that enhanced dispersion and interfacial bonding of the GO-MWCNTs with epoxy improved dynamic mechanical properties of the epoxy matrix nanocomposites, while made curing process accelerated. The proposed ultrasonic monitoring method could accurately evaluate the curing process of epoxy-matrix nanocomposites. In conclusion, this research offered a practical effective measurement method for monitoring of curing process of the thermosetting resin matrix nanocomposites.
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Data Availability
The datasets are available from the corresponding author on reasonable request.
References
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This work was supported by the National Natural Science Foundation of China (No. 51303138).
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Conceptualization, Leping Huang and Jinchao Zhao; methodology, Jinchao Zhao; validation, Cui He and Liang Ren; formal analysis, Cui He and Liang Ren; investigation, Cui He and Liang Ren; data curation, Cui He and Liang Ren; writing—original draft preparation, Jinchao Zhao and Cui He; writing—review and editing, Jinchao Zhao; supervision, Jinchao Zhao and Leping Huang; project administration, Leping Huang; funding acquisition, Jinchao Zhao. All authors have read and agreed to the published version of the manuscript.
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Zhao, J., He, C., Ren, L. et al. Application of Ultrasonic Technique for Cure Monitoring of Epoxy/Graphene Oxide–Carbon Nanotubes Composites. Appl Compos Mater 31, 61–81 (2024). https://doi.org/10.1007/s10443-023-10162-4
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DOI: https://doi.org/10.1007/s10443-023-10162-4