Electrostatic incitation on fiber surface for enhancing mechanical properties of fiber-reinforced composite

Wen, Kaiqiang; Ma, Hechuan; Zhang, Jie; Cheng, Siyi; Wang, Xin; Hui, Yaozu; Li, Xiangming; Xu, Peijun; Shao, Jinyou; Chen, Xiaoming

doi:10.1016/j.compscitech.2022.109627

Cited by 17 publications

(3 citation statements)

References 57 publications

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“…The adhesion work is the calculated value, the Young-Dupre method calculates the adhesion work by measuring the contact angle, and the Wu method measures the relevant surface energy, dispersion component and polar component to calculate the adhesion work by the IGC method [44][45][46]. It is shown that the results measured by the Wu method are higher than that measured by the IGC method, because the contact angle test reflects the average effect on the fiber surface, while the probe molecules are easier to interact with the high energy points on the fiber surface [47,48].…”

Section: The Adhesive Workmentioning

confidence: 99%

A review of FMLs performance test methods and index evaluation

et al. 2023

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With its excellent fatigue performance and high damage tolerance and other irreplaceable advantages, FMLs have gradually increased the demand in aerospace, rail transit, ship and other fields, and have put forward higher requirements for the speed and accuracy of its performance test and index evaluation. In this paper, the methods of performance test, analysis and index evaluation of FMLs are introduced from three aspects with carbon fiber and composite materials, mechanical properties and numerical simulation technology, details the common test methods, the latest technology and progress, and analyzes their advantages and disadvantages, so as to provide direction and reference for the performance test method and index evaluation of FMLs. Finally, the main development directions of the current performance testing methods and index evaluation of FMLs are briefly discussed.

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Section: The Adhesive Workmentioning

confidence: 99%

A review of FMLs performance test methods and index evaluation

et al. 2023

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“…Note that the capacity and efficiency of transferring the load from the matrix to the fiber would highly depend on the interface thickness. 36,41,42 As shown in Figure 5a, the linear carbon element content in the interface region of the desized CF/EP composites showed a sharp drop from the CF to the matrix with a thickness of 0.54 μm. After the deposition of the porous structure for 10 s (CF− PCNT-10 s), the thickness of the interface region of CF− PCNT-10 s/EP composites increased significantly to reach 0.67 μm (Figure 5b), indicating the presence of the PCNT Note that the IFSS increase of modified fibers was positively correlated with the contact angle and surface energy.…”

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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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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“…The material properties can be designed through component control, and it is expected to replace the traditional sliding plate and become a new sliding plate material. Wen and others proposed a simple and effective electrostatic method to spray a small amount of negative charges on the surface of carbon fibers to obtain excellent wettability and improve the mechanical properties of composites [29]. Zhou et al have developed the Mo 2 C layer that was fabricated throughout the internal surface of a C/C preform in molten salt with ammonium paramolybdate and successfully produced C/C−Cu composite materials with good interfacial bonding, as well as good bending and impact strength, achieving resistivity of the same order of magnitude as pure copper [30].…”

Section: Introductionmentioning

confidence: 99%

Laminate Design of Carbon-Fiber-Reinforced Resin Matrix Composites for Optimized Mechanical Properties and Electrical Conductivity

Tan

Wang

et al. 2022

Materials

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Carbon fiber composites as pantograph slide materials are in the development stage, in which copper is the conductive phase, and the addition form and size need to be designed. Herein, the effects of the copper morphology, the size of the copper mesh on the performance, and the influence of the contact mode between the sliding plate and bracket on the temperature rise were compared and analyzed. The resistivity is 11.2 μΩ·m with the addition of 20 wt% copper mesh, a relative reduction of 91.77%. Importantly, the impact strength is increased by 14.19%, and the wear is reduced by 13.21%; hence, the copper mesh laid in layers is the ideal structure. Further study of the distribution and quality of the copper mesh shows that the resistivity is related only to the quality of the copper mesh; in addition, the number of layers of the copper mesh cannot exceed 16, and it is determined that the best type of copper mesh is 5#. Notably, the performance can be improved by appropriately reducing the thickness of the copper mesh and increasing the aperture while the sliding plate and the bracket are connected by copper mesh with conductive adhesive, which has the slowest heating rate of 2.27 °C/min and the smallest resistance. Therefore, the influence of copper content and distribution on the electrical conductivity are systematically investigated, and the mechanical properties and electrical conductivity are optimized through the design of the laminate structure of the compound material.

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Electrostatic incitation on fiber surface for enhancing mechanical properties of fiber-reinforced composite

Cited by 17 publications

References 57 publications

A review of FMLs performance test methods and index evaluation

A review of FMLs performance test methods and index evaluation

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

Laminate Design of Carbon-Fiber-Reinforced Resin Matrix Composites for Optimized Mechanical Properties and Electrical Conductivity

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