Gallic acid-iron complex modified magnesium hydroxide and its effect on flame retardancy of EVA

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URI: https://hdl.handle.net/10641/7401
ISSN: 2542-5048
DOI: 10.1016/j.aiepr.2022.12.003

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2023-04

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In this paper, a green method of modifying high flame retardant and high mechanical properties MH was proposed, gallic acid (GA)-Fe3+ complex was employed to modify the surface of magnesium hydroxide (MH), aiming to achieve novel functionalized MH-based flame retardant for ethylene-vinyl acetate copolymer (EVA). The structural and morphological characterization of the newly designed flame retardant were studied by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Scanning electron microscope and X-ray Diffraction. The flame retardancy of EVA, EVA/MH, EVA/MH@Fe-GA was investigated via Limiting oxygen index, UL-94 vertical combustion tests, and cone calorimeter test. The LOI and UL94 results showed that EVA/MH@Fe-GA (01) achieved an LOI of 38.5% and UL-94 passed the V-0 grade. The CCT results showed that compared with neat EVA, the peak heat release rate (pHRR) of EVA/MH@Fe-GA decreased by 90.83%, and TSP decreased by 86%, as compared to neat EVA. The mechanical properties of EVA/MH, EVA/MH@Fe-GA were investigated via tensile and impact tests. Compared with EVA/MH, MH@GA-Fe shows good tensile property and impact resistance, the impact strength of EVA/MH@Fe-GA increased by more than 28%, and the elongation at break increased by 145%.

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Publisher Copyright: © 2022 Kingfa Scientific and Technological Co. Ltd.

Keywords

Ethylene-vinyl acetate copolymer (EVA), Flame retardancy, Magnesium hydroxide (MH), Surface modification, Chemical Engineering (miscellaneous), Materials Science (miscellaneous), Polymers and Plastics, Industrial and Manufacturing Engineering, Yes, yes

Citation

Wang, T, Yao, D W, Yin, G Z, Jiang, Y, Wang, N & Wang, D Y 2023, 'Gallic acid-iron complex modified magnesium hydroxide and its effect on flame retardancy of EVA', Advanced Industrial and Engineering Polymer Research, vol. 6, no. 2, pp. 172-180. https://doi.org/10.1016/j.aiepr.2022.12.003

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