Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS
Graphene is often used to improve interlaminar fracture toughness of carbon fiber/epoxy resin (CF/EP) composites. It is still a challenge to improve the toughness while maintaining the in-layer properties. In this study, 2D graphene oxide carbon fiber reinforced epoxy resin matrix (2D CF-GO/EP) comp...
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MDPI AG
2022-04-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/7/1184 |
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| author | Yuqin Ma Yi Chen Fei Li Yiren Xu Wei Xu Yatao Zhao Haiyin Guo Yatao Li Zedu Yang Yi Xu |
| author_facet | Yuqin Ma Yi Chen Fei Li Yiren Xu Wei Xu Yatao Zhao Haiyin Guo Yatao Li Zedu Yang Yi Xu |
| author_sort | Yuqin Ma |
| collection | DOAJ |
| description | Graphene is often used to improve interlaminar fracture toughness of carbon fiber/epoxy resin (CF/EP) composites. It is still a challenge to improve the toughness while maintaining the in-layer properties. In this study, 2D graphene oxide carbon fiber reinforced epoxy resin matrix (2D CF-GO/EP) composites were prepared by a vacuum infiltration hot-press forming experimental system (VIHPS), and three-point flexural and end notch flexural (ENF) tests were carried out. With the increase of the fiber mass fraction in the composites, the mode II interlaminar fracture toughness (<i>G</i><sub>II</sub><sub>C</sub>) layers decrease gradually, and the bond property between the fiber and matrix interface layer becomes worse, because the accumulation of dense fiber bundles reduces the matrix penetration ability of cracks. However, the flexural properties increased first and then decreased, and reached the best flexural properties at 64.9%. When the fiber mass fraction is too high, the interlamellar bonding properties will decrease, and the fiber bundles will compress and affect each other. The delamination phenomenon will occur between the layers of the composites, which affects the overall bearing strength and stress limit of the composites. The results of the study show that the composites prepared by VIHPS have excellent mechanical properties, and the content of carbon fiber plays an important role in the influencing factors of the interlaminar and in-layer properties of composites. |
| first_indexed | 2024-03-09T11:33:26Z |
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| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:33:26Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4ce01c6da2224a6f9776e80774282f192023-11-30T23:45:42ZengMDPI AGNanomaterials2079-49912022-04-01127118410.3390/nano12071184Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPSYuqin Ma0Yi Chen1Fei Li2Yiren Xu3Wei Xu4Yatao Zhao5Haiyin Guo6Yatao Li7Zedu Yang8Yi Xu9State Key Laboratory of Public Big Data, Guizhou University, Guiyang 550025, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechanical Engineering, Tsinghua University, Beijing 100084, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaGraphene is often used to improve interlaminar fracture toughness of carbon fiber/epoxy resin (CF/EP) composites. It is still a challenge to improve the toughness while maintaining the in-layer properties. In this study, 2D graphene oxide carbon fiber reinforced epoxy resin matrix (2D CF-GO/EP) composites were prepared by a vacuum infiltration hot-press forming experimental system (VIHPS), and three-point flexural and end notch flexural (ENF) tests were carried out. With the increase of the fiber mass fraction in the composites, the mode II interlaminar fracture toughness (<i>G</i><sub>II</sub><sub>C</sub>) layers decrease gradually, and the bond property between the fiber and matrix interface layer becomes worse, because the accumulation of dense fiber bundles reduces the matrix penetration ability of cracks. However, the flexural properties increased first and then decreased, and reached the best flexural properties at 64.9%. When the fiber mass fraction is too high, the interlamellar bonding properties will decrease, and the fiber bundles will compress and affect each other. The delamination phenomenon will occur between the layers of the composites, which affects the overall bearing strength and stress limit of the composites. The results of the study show that the composites prepared by VIHPS have excellent mechanical properties, and the content of carbon fiber plays an important role in the influencing factors of the interlaminar and in-layer properties of composites.https://www.mdpi.com/2079-4991/12/7/1184fiber mass fractiongraphene oxidecarbon fiber compositesflexural strengthinterlaminar fracture toughness |
| spellingShingle | Yuqin Ma Yi Chen Fei Li Yiren Xu Wei Xu Yatao Zhao Haiyin Guo Yatao Li Zedu Yang Yi Xu Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS Nanomaterials fiber mass fraction graphene oxide carbon fiber composites flexural strength interlaminar fracture toughness |
| title | Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS |
| title_full | Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS |
| title_fullStr | Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS |
| title_full_unstemmed | Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS |
| title_short | Effect of Fiber Mass Fraction on Microstructure and Properties of 2D CF-GO/EP Composite Prepared by VIHPS |
| title_sort | effect of fiber mass fraction on microstructure and properties of 2d cf go ep composite prepared by vihps |
| topic | fiber mass fraction graphene oxide carbon fiber composites flexural strength interlaminar fracture toughness |
| url | https://www.mdpi.com/2079-4991/12/7/1184 |
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