Study on Curing Mechanism of Hyperbranched Polymer Modified Carbon Nanotube/Epoxy Resin Composites Based on Two-dimensional Correlation Infrared Spectroscopy

ZHANG Kefeng, LI Lu, DUAN Jiaqi, LIANG Jingyuan, YANG Mengjiao

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Plastics Science and Technology ›› 2025, Vol. 53 ›› Issue (01) : 68-75. DOI: 10.15925/j.cnki.issn1005-3360.2025.01.012
Theory and Research

Study on Curing Mechanism of Hyperbranched Polymer Modified Carbon Nanotube/Epoxy Resin Composites Based on Two-dimensional Correlation Infrared Spectroscopy

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Abstract

To clarify the curing mechanism of hyperbranched polymer modified carbon nanotubes/epoxy resin composite materials and the influence mechanism of different hyperbranched polymers on the curing behavior of epoxy resin matrix, a moving window two-dimensional correlation infrared analysis method was used, and a comparative analysis was conducted on the changes in characteristic functional groups of hyperbranched polyester modified carbon nanotubes/epoxy resin composite material (EP/MWCNTs H204) and hyperbranched polyamide modified carbon nanotubes/epoxy resin composite material (EP/MWCNTs N103) during the heating and curing process. The sequence of changes in each functional group was discussed in detail using generalized two-dimensional correlated infrared analysis. The influence of the introduction of different hyperbranched polymers on the curing behavior of epoxy resin composites was reasonably explained.

Key words

Hyperbranched polymer / Carbon nanotubes / Epoxy resin / Two-dimensional correlation infrared analysis / Curing mechanism

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ZHANG Kefeng , LI Lu , DUAN Jiaqi , et al . Study on Curing Mechanism of Hyperbranched Polymer Modified Carbon Nanotube/Epoxy Resin Composites Based on Two-dimensional Correlation Infrared Spectroscopy. Plastics Science and Technology. 2025, 53(01): 68-75 https://doi.org/10.15925/j.cnki.issn1005-3360.2025.01.012

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