Intermittent carbon nanotube encapsulation of carbon fiber: A facile and efficient strategy to simultaneously strengthen and toughen interphase of composites

Wu, Qing; Bai, Huanhuan; Deng, Hao; Ye, Ziyi; Wang, Qingyu; Zhu, Jianfeng

doi:10.1016/j.compositesb.2022.109785

Cited by 25 publications

(9 citation statements)

References 55 publications

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“…The small CNT–Mg(OH) 2 /MgO porous structure could facilitate resin impregnation to the vicinity of the fiber surface, as well as the formation of the mechanical interlocking morphologies. This could provide additional interfacial friction to restrain the mutual sliding between the CF and EP, leading to enhanced interfacial interaction . In addition, porous structures were filled in the interface, and cracks would possibly deflect when the grown cracks met the wall of the porous structure to induce more microbranches.…”

Section: Resultsmentioning

confidence: 99%

“…This could provide additional interfacial friction to restrain the mutual sliding between the CF and EP, leading to enhanced interfacial interaction. 47 In addition, porous structures were filled in the interface, and cracks would possibly deflect when the grown cracks met the wall of the porous structure to induce more microbranches. This process would effectively consume energy and increase fracture toughness.…”

Section: Wettability and Interfacial Properties Of The Carbon Fiber A...mentioning

confidence: 99%

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Constructing a Porous Structure on the Carbon Fiber Surface for Simultaneously Strengthening and Toughening the Interface of Composites

Chen

Hui

Cheng

et al. 2022

ACS Appl. Mater. Interfaces

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The demand for both strength and toughness is perpetual in fiber-reinforced composites. Unfortunately, both properties are often mutually exclusive. As the mechanical properties of the composites are highly dependent on their interfacial properties, engineering interfaces between the fiber and matrix would be vital to overcome the conflict between strength and toughness. Herein, inspired by the physical interfacial architecture of grassroots-reinforced soil composites, a porous carbon nanotube−Mg(OH) 2 /MgO hybrid structure was constructed on the fiber surface via water electrolysis reaction and electrophoretic deposition process. The effects of the porous structure on the fiber filaments' mechanical properties, as well as the thickness on the interfacial properties, were all investigated. The results showed that fully covered porous structures on the fiber surface slightly enhanced the reliability of a single fiber in terms of mechanical properties by bridging the surface defects on the fiber. The interfacial shear strength and toughness of the porous structure-coated fiber/resin composite reached up to 92.3 MPa and 121.2 J/m 2 , respectively. These values were 61.30 and 121.98% higher than those of pristine fiber/resin composites, respectively. The strengthening effect was ascribed to the synergistic effects that improved numerous interfacial bonding areas and mechanical interlocking morphologies. The toughening mechanism was related to crack deflection, microcrack generation, and fracture of the porous structure during interfacial failure. Additional numerical studies by finite element analysis further proved the enhancement mechanism. Overall, the proposed method looks promising for producing advanced carbon fiber-reinforced polymer composites with excellent strength and toughness.

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Section: Resultsmentioning

confidence: 99%

Section: Wettability and Interfacial Properties Of The Carbon Fiber A...mentioning

confidence: 99%

Constructing a Porous Structure on the Carbon Fiber Surface for Simultaneously Strengthening and Toughening the Interface of Composites

Chen

Hui

Cheng

et al. 2022

ACS Appl. Mater. Interfaces

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“…Carbon fiber-T800HB was bought from Toray, which was initially washed with acetone based on our previous work before using . The resulting fibers were named as CF throughout the following text.…”

Section: Methodsmentioning

confidence: 99%

Construction of Mussel-Inspired “Inorganic–Organic” Hybrids onto a Cylindrical Carbon Fiber via Green and Rapid Manufacturing toward Enhanced Interfacial Adhesion of Composites

Deng

et al. 2023

ACS Sustainable Chem. Eng.

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A mussel-inspired “inorganic–organic” hybrid coating with laminated architecture was used to wrap a circumferential carbon fiber through integrated utilization of polydopamine (PDA) nanosphere-decorated graphene oxide (GOPDA NPs) and PDA–polyether amine (PEA) under vacuum filtration, which has not been applied in fiber surface engineering. This modification process did not involve harsh conditions, toxic chemicals, and tedious operation, providing a facile, efficient, and sustainable procedure. By adjusting the deposition amount, an optimal structure and the corresponding strongest interfacial adhesion were achieved under addition of 30 mL. A growth of 88.6% up to 114.5 MPa in interfacial shear strength compared to that of the desized fiber (60.7 MPa) is visible. The reasons are associated with the improved wetting behavior and subsequent strong multi-interactions between the fiber and epoxy resin. The closely packed GOPDA NPs layers could effectively hinder crack extension, thus leading to great energy dissipation. Our strategy offers an attractive platform in surface engineering of one-dimensional fibers for producing high-performance composites to be applied in fields where energy saving, lightweight, and high performance characteristics are needed.

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“…[ 26 ] Vacuum filtration is also an effective method to deposit CNTs onto fibers on the filter membrane with the advantages of mild conditions, easy processibility, and low cost. [ 42 ] The above methods are easy to conduct, but as they cannot control the orientation of CNTs on the fibers, the CNTs can become randomly oriented on the fiber surface. Figure 1c illustrates the chemical method of fiber grafting of CNTs.…”

Section: Manufacture Of Cnt‐frpsmentioning

confidence: 99%

Enhancing the Mechanical Performance of Fiber‐Reinforced Polymer Composites Using Carbon Nanotubes as an Effective Nano‐Phase Reinforcement

Zhao

Yang

et al. 2022

Adv Materials Inter

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Carbon nanotubes (CNTs) are an economical and multi‐functional nanofiller that can further elevate the versatile performance of fiber‐reinforced polymer (FRP). The past two decades have seen significant progress in the design, fabrication, and characterization of CNTs modified FRPs (CNT‐FRPs). The introduction of CNTs has been proven to enhance the key mechanical properties of CNT‐FRPs and endow the composite with additional functional properties. In this review, the fabrication routes of CNT incorporation into FRPs are first discussed, and then the critical effects of CNTs on various mechanical properties of CNT‐FRPs are described. Next, as a complement to the experimental results, modeling studies on CNT‐FRPs are included to reveal the underlying structural effects, followed by a discussion on the reinforcement and toughening mechanisms of CNT‐FRPs. The intent of this review is to provide a comprehensive summary on CNT modified FRP composites, and to shed light on the future research and development of CNT modified composites.

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Intermittent carbon nanotube encapsulation of carbon fiber: A facile and efficient strategy to simultaneously strengthen and toughen interphase of composites

Cited by 25 publications

References 55 publications

Constructing a Porous Structure on the Carbon Fiber Surface for Simultaneously Strengthening and Toughening the Interface of Composites

Constructing a Porous Structure on the Carbon Fiber Surface for Simultaneously Strengthening and Toughening the Interface of Composites

Construction of Mussel-Inspired “Inorganic–Organic” Hybrids onto a Cylindrical Carbon Fiber via Green and Rapid Manufacturing toward Enhanced Interfacial Adhesion of Composites

Enhancing the Mechanical Performance of Fiber‐Reinforced Polymer Composites Using Carbon Nanotubes as an Effective Nano‐Phase Reinforcement

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