Mechanical properties of a carbon fiber reinforced epoxy resin composite improved by integrating multi-walled carbon nanotubes and graphene nanoplatelets

IF 2.3 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Composite Materials Pub Date : 2024-02-02 DOI:10.1177/00219983241230740

Esranur Yuksel, Osman Eksik, Hanzade Haykiri-Acma, Serdar Yaman

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Abstract

The pairs of nanofillers prepared by graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWCNTs) were added to the epoxy matrix in various ratios to produce hybrid epoxy nanocomposites. The effects of the presence of these nanofillers at 0.1–0.4 wt.% on the mechanical and thermal properties were tested. Likewise, carbon fiber reinforced MWCNT/GNP modified epoxy nanocomposite laminates were also manufactured and tested. The dispersion of nanofiller in the polymer matrix was evaluated by Scanning Electron Microscopy (SEM). It was determined that the hybrid composite consisting of a MWCNT:GNP ratio of 1:3 and a nanofiller ratio of 0.3 wt.% showed the best mechanical properties with a tensile strength of 75.1 MPa. The presence of GNPs and MWCNT nanofillers in epoxy/carbon fiber laminates influenced positively the tensile strength and strain but negatively the elastic modulus. Glass transition temperature of epoxy increased from 87.25°C to 114.67°C for MWCNT:GNP ratio of 1:1 (0.3 wt.%).

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通过集成多壁碳纳米管和石墨烯纳米片改善碳纤维增强环氧树脂复合材料的力学性能

将石墨烯纳米片（GNPs）和多壁碳纳米管（MWCNTs）制备的纳米填料以不同比例添加到环氧基体中，制备出混合环氧纳米复合材料。测试了 0.1-0.4 wt.% 的这些纳米填料对机械和热性能的影响。同样，还制造并测试了碳纤维增强的 MWCNT/GNP 改性环氧纳米复合材料层压板。纳米填料在聚合物基体中的分散情况通过扫描电子显微镜（SEM）进行了评估。结果表明，MWCNT:GNP 比率为 1:3、纳米填料比率为 0.3 wt.% 的混合复合材料显示出最佳的机械性能，拉伸强度达到 75.1 MPa。环氧树脂/碳纤维层压板中 GNPs 和 MWCNT 纳米填料的存在对拉伸强度和应变有积极影响，但对弹性模量有消极影响。MWCNT 与 GNP 的比例为 1:1（0.3 wt.%）时，环氧树脂的玻璃化转变温度从 87.25°C 上升到 114.67°C。

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来源期刊

Journal of Composite Materials 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.90%

发文量

274

审稿时长

6.8 months

期刊介绍： Consistently ranked in the top 10 of the Thomson Scientific JCR, the Journal of Composite Materials publishes peer reviewed, original research papers from internationally renowned composite materials specialists from industry, universities and research organizations, featuring new advances in materials, processing, design, analysis, testing, performance and applications. This journal is a member of the Committee on Publication Ethics (COPE).