Synthesis and application of a triazine derivative containing boron as flame retardant in epoxy resins

Shanshan Chen; Lianghui Ai; Tie Zhang; Ping Liu; Weishi Liu; Yonghong Pan; Dongfa Liu

Arabian Journal of Chemistry (Jan 2020)

Synthesis and application of a triazine derivative containing boron as flame retardant in epoxy resins

Shanshan Chen,
Lianghui Ai,
Tie Zhang,
Ping Liu,
Weishi Liu,
Yonghong Pan,
Dongfa Liu

Affiliations

Shanshan Chen: State Key Laboratory of Luminescent Materials and Devices, Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
Lianghui Ai: State Key Laboratory of Luminescent Materials and Devices, Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
Tie Zhang: State Key Laboratory of Luminescent Materials and Devices, Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
Ping Liu: State Key Laboratory of Luminescent Materials and Devices, Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China; Corresponding authors.
Weishi Liu: State Key Laboratory of Luminescent Materials and Devices, Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China; Guangzhou Shine Polymer Technology Co., Ltd., Guangzhou 511400, China
Yonghong Pan: Guangzhou Institute of Quality Supervision Test, Guangzhou 510110, China; Corresponding authors.
Dongfa Liu: Guangzhou Institute of Quality Supervision Test, Guangzhou 510110, China

Journal volume & issue: Vol. 13, no. 1
pp. 2982 – 2994

Abstract

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A halogen-free, organic boron/nitrogen compound, 2,4,6-tris-(4-boronphenoxy)-(1,3,5)-triazine (TNB), was synthesized. The thermal and flame-retardant properties of epoxy resins (EP) containing TNB were investigated based on TGA, limiting oxygen index (LOI), vertical burning (UL 94) and cone calorimeter tests. The results showed that the residual char of EP increased after TNB was present. The LOI value of EP/20%TNB reached 31.2% and UL 94 V-0 rating was achieved. The peak heat release rate and total heat release of EP/20%TNB reduced to 305.3 kW/m2 and 58.0 MJ/m2, respectively. In addition, the flame-retarding mechanism was investigated using X-ray diffraction, scanning electron microscopy, laser Raman spectroscopy, elemental analysis, and thermogravimetric analysis-infrared spectroscopy. The results show that TNB is an efficient flame retardant, which is effective in the gas and condensed phases simultaneously. Keywords: Triazine derivative, Boron/nitrogen flame retardant, Epoxy resin, Flame-retarding mechanism

Published in Arabian Journal of Chemistry

ISSN: 1878-5352 (Print)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: http://www.journals.elsevier.com/arabian-journal-of-chemistry/

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