Volume 137, Issue 1 47710
Article

Synthesis of modified graphene oxide and its improvement on flame retardancy of epoxy resin

Wenqian Wu

Wenqian Wu

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Yiting Xu

Yiting Xu

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Haiyang Wu

Haiyang Wu

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Jinmei Chen

Jinmei Chen

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Min Li

Min Li

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Ting Chen

Ting Chen

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Jing Hong

Jing Hong

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

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Lizong Dai

Corresponding Author

Lizong Dai

Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen University, Xiamen, Fujian, 361005 People's Republic of China

Correspondence to: L. Dai (E-mail: [email protected])Search for more papers by this author
First published: 07 March 2019
Citations: 26

ABSTRACT

In this work, the small molecule with double-phosphaphenanthrene structure was successfully grafted on the surface of graphene oxide (GO), which is called functionalized graphene oxide (FGO). The introduction of FGO improved the poor interfacial compatibility between graphene and epoxy matrix. And FGO could be used as the highly effective flame retardant. The thermogravimetric analysis results showed a significant improvement in the char yield of cured FGO/EP. When the content of FGO was 3 wt %, the limiting oxygen index value reached 30.4%. At the same time, the three-point bending and thermomechanical tests confirmed that the mechanical properties of the epoxy resin composites were improved. Based on the char analyses of SEM images and Raman spectroscopy, the flame retardant could promote the formation of a stable carbon layer. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 47710.

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