Effect of MDNs/FGNs/IFR Synergistic Flame Retardant on Thermal Degradation Kinetics of Epoxy Resin

WU Zhenghuan, LIU Shuyi, CHEN Zhuo, WANG Jialing, WANG Quan, SONG Gaojie, ZHENG Jiayu

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Plastics Science and Technology ›› 2025, Vol. 53 ›› Issue (03) : 24-30. DOI: 10.15925/j.cnki.issn1005-3360.2025.03.005
Theory and Research

Effect of MDNs/FGNs/IFR Synergistic Flame Retardant on Thermal Degradation Kinetics of Epoxy Resin

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Abstract

A thermogravimetric analyzer was used to study the thermal degradation process of epoxy resin (EP), intumescent flame retardant/epoxy resin (IFR/EP), and layered molybdenum disulfide nanosheets/flake graphite nanosheets/intumescent flame retardant/epoxy resin (MDNs/FGNs/IFR/EP) composites. The effects of IFR and MDNs/FGNs/IFR addition on the thermal stability and thermal degradation process of EP composites were compared. The activation energy of thermal degradation kinetics of EP and its composites was calculated using Horowitz-Metzger method, Zavkovic method and Newkirk method. The results showed that EP and its composites exhibited similar thermal decomposition stages, and IFR helped to improve the thermal stability of the materials. The addition of synergistic flame retardants MDNs/FGNs further enhanced the thermal stability of the composites, the residual carbon rate of the material has also been significantly improved at 800 ℃. The activation energies obtained by Horowitz-Metzger method were 98.14, 56.18, 54.98 kJ/mol, respectively. The activation energies obtained by the Zavkovic method were 162.89, 160.88, 155.63 kJ/mol. The activation energies obtained by the Newkirk method were 99.51, 52.29, 52.77 kJ/mol.

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Epoxy resin / Intumescent flame retardant / Thermal degradation kinetics / Thermal stability

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WU Zhenghuan , LIU Shuyi , CHEN Zhuo , et al . Effect of MDNs/FGNs/IFR Synergistic Flame Retardant on Thermal Degradation Kinetics of Epoxy Resin. Plastics Science and Technology. 2025, 53(03): 24-30 https://doi.org/10.15925/j.cnki.issn1005-3360.2025.03.005

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