Reinforcement of Epoxy Resin by Additives of Amine-Functionalized Graphene Nanosheets
Source abstract
Abstract
In this study, graphene oxide (GO) nanosheets were modified with an amine functional group to obtain amine-functionalized graphene (AMG) nanosheets and then blended with the aniline curing agent of bisphenol-A (BPA) epoxy resin to crosslink BPA epoxy resin. The AMG-blended curing agent and BPA epoxy resin formed an intermolecular hydrogen bond that was stronger than the π–π stacking force between benzene rings of graphene nanosheets. Therefore, AMG nanosheets exhibited excellent dispersion in the aniline curing agent. The amine group of AMG-blended curing agents and the epoxy functional group of BPA epoxy resin exhibited strong chemical activity and underwent crosslinking and polymerization. AMG nanosheets were mixed with BPA epoxy resin to form a crosslinked structure through the epoxy ring-opening polymerization of the resin. The mechanical properties of the epoxy resin nanocomposites were significantly improved by the added 1 wt.% AMG nanosheets. The tensile strength was enhanced by 98.1% by adding 1 wt.% AMG in epoxy. Furthermore, the impact resistance of the epoxy resin was enhanced by 124.4% after adding 2.67 wt.% of AMG nanosheets. Compared with other reinforced fillers, AMG nanosheets are very light and can therefore be used as nanocomposite materials in coating applications, the automotive industry, aerospace sheet materials, wind power generation, and other fields.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Graphene research and applications · Fiber-reinforced polymer composites · Synthesis and properties of polymers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nuclear Fuels and Materials Division, Institute of Nuclear Energy Research, Lontang, Taoyuan 325, Taiwan
Zhongsun Co., Ltd., New Taipei City 220, Taiwan
Yottadeft Optoelectronics Technology Co., Ltd., Taipei 10460, Taiwan
Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
Department of Vehicle Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
Funding
Ministry of Science and Technology, Taiwan
References (29)
Show source-provided references
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