Investigations on effect of amine functionalised graphene nanoplatelets (f-GNPs) reinforcement on mechanical properties of epoxy resin

Hybrid Advances Pub Date : 2025-04-01 DOI:10.1016/j.hybadv.2025.100443

Neerajkumar Wayzode , Mahendra L. Shelar , Vinod B. Suryawanshi

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Abstract

Graphene nanoplatelets (f-GNPs) are emerging nanofillers with appealing attributes, such as strong compatibility with a wide range of polymers, exceptional overall strength, and cost-efficiency. This research examines the influence of varying weight fractions of functionalized graphene nanoplatelets (f-GNPs) on the mechanical properties of epoxy resin. Various weight fractions of f-GNPs namely 0.2%, 0.4%,0.6%,0.8%,1% and 5% are added to epoxy resin. Combination of ultra-sonication and magnetic stirring was used for dispersing f-GNPs in epoxy resin. f-GNPs reinforcement showed improvement in tensile strength on epoxy except for 1% and 5% weight fractions. Dispersion of f-GNPs is found to be superior at lower f-GNPs concentrations. The experimental results reveal that incorporating f-GNPs enhances the ultimate tensile strength of epoxy resin by 11.79%, 12.47%, 10.12%, and 13.31% at weight fractions of 0.2%, 0.4%, 0.6%, and 0.8%, respectively. This confirms the beneficial impact of amine-functionalized graphene nanoplatelets (f-GNPs) on epoxy resin. The highest improvement, 13.31%, was achieved at 0.8% f-GNPs, making it the optimal loading, which was subsequently utilized in the development of multiscale f-GNPs-reinforced Glass/Epoxy composites. This study also presents a detailed FTIR, LRS, XRD, TEM, SEM characterisation of amine functionalised graphene nanoplatelets (f-GNPs).

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胺功能化石墨烯纳米片（f-GNPs）增强对环氧树脂力学性能影响的研究

石墨烯纳米片（f-GNPs）是一种新兴的纳米填料，具有吸引人的特性，如与多种聚合物的强相容性、卓越的整体强度和成本效益。本研究考察了功能化石墨烯纳米片（f-GNPs）的不同重量分数对环氧树脂机械性能的影响。在环氧树脂中加入不同重量分量的f-GNPs，分别为0.2%、0.4%、0.6%、0.8%、1%和5%。采用超声和磁力搅拌相结合的方法对f-GNPs在环氧树脂中的分散进行了研究。除1%和5%质量分数外，f-GNPs增强剂对环氧树脂的拉伸强度均有提高。在较低的f-GNPs浓度下，f-GNPs的弥散性更好。实验结果表明，在质量分数为0.2%、0.4%、0.6%和0.8%的情况下，加入f-GNPs可使环氧树脂的极限拉伸强度分别提高11.79%、12.47%、10.12%和13.31%。这证实了胺功能化石墨烯纳米片（f-GNPs）对环氧树脂的有益影响。当f-GNPs为0.8%时，提高率最高，达到13.31%，成为最佳负载，随后用于多尺度f-GNPs增强玻璃/环氧复合材料的开发。本研究还对胺功能化石墨烯纳米片（f-GNPs）进行了详细的FTIR， LRS， XRD， TEM， SEM表征。

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Hybrid Advances

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