Preparation and properties characterization of gallic acid epoxy resin/succinic anhydride bionanocomposites modified by green reduced graphene oxide. Issue 1 (2nd January 2016)

• Record Type: Journal Article
• Authors: Hou, Guixiang; Gao, Jungang; Xie, Jianqiang; Li, Bo
• Is Part Of: Soft materials. Volume 14:Issue 1(2016)
• Page Start: 27
• Page End: 37
• Publication Date: 2016-01-02
• Subjects: Gallic acid epoxy resin -- succinic anhydride -- graphene -- green reduction -- bionanocomposites; Materials science -- Periodicals; 620.11
• DOI: 10.1080/1539445X.2015.1098704
• Languages: English
• ISSNs: 1539-445X

Abstract

ABSTRACT: Graphene oxide was reduced into reducing-graphene oxide (r-GO) successfully using gallic acid (GA) as a green reducing agent. Biobased gallic acid epoxy resin (GAER) was synthesized from renewable GA, and the biobased GAER/r-GO nanocomposites and glass fiber-reinforced composites were prepared with succinic anhydride as a curing agent. The dynamic mechanical, thermal, and mechanical properties of the composites with varying r-GO contents were characterized. When the content of r-GO was 0.5 wt%, the glass transition temperature was 10.4°C higher than the pure resin system. The thermal and mechanical properties were increased with increasing r-GO content; when the r-GO content was 1.0 wt%, the initial degradation temperature was enhanced by approximately 6.8°C, the tensile and impact strengths were 34.5% and 49.1% higher, respectively, than the pure cured GAER. The impact strength of GAER was higher than that of the bisphenol A epoxy resin/SUA curing system, but the tensile strength was lower than it.