Strong Interface Construction of Carbon Fiber–reinforced PEEK Composites: An Efficient Method for Modifying Carbon Fiber with Crystalline PEEK

Yang, Yanchao; Wang, Tianjiao; Wang, Shengdao; Cong, Xin; Zhang, Shuling; Zhang, Mei; Luan, Jingyi; Wang, Guibin

doi:10.1002/marc.202000001

Cited by 47 publications

(23 citation statements)

References 34 publications

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“…5,8 The mechanical properties of the ternary composites could be additionally improved by increasing the level of interfacial adhesion between fibers and the polymer matrix. 47 This was achieved chemically by treating fibers or loading with various agents or nanoparticles. According to many authors, the last way provided a synergistic effect.…”

Section: The Tribological Propertiesmentioning

confidence: 99%

The effect of annealing of milled carbon fibers on the mechanical and tribological properties of solid‐lubricant thermoplastic polyimide‐based composites

Panin

Luo

Alexenko

et al. 2020

Polymer Engineering & Sci

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The mechanical and tribological properties of polyimide (PI)-based composites loaded with polytetrafluoroethylene (PTFE) and milled carbon fibers (MCF) in the as received and annealed states were studied in order to increase adhesion to the polymer matrix. It has been shown that loading with micron-range MCF (200 μm) doubles elastic modulus of the composites while all other physical and mechanical properties remain at neat PI levels.

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Section: The Tribological Propertiesmentioning

confidence: 99%

The effect of annealing of milled carbon fibers on the mechanical and tribological properties of solid‐lubricant thermoplastic polyimide‐based composites

Panin

Luo

Alexenko

et al. 2020

Polymer Engineering & Sci

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“…For example, Yuan et al 23 synthesized semi‐aliphatic polyimide as CF sizing agent, and the interlaminar shear strength (ILSS) and flexural strength of CF/PEEK raised by 23.8% and 7.8%. Yang et al 24 found that after PEEK‐1,3‐dioxolane sizing agent coated on CF, the interfacial shear strength (IFSS) of CF/PEEK improved by 91.5%.…”

Section: Introductionmentioning

confidence: 99%

Effects of polyetherimide sizing involving carbon nanotubes on interfacial performance of carbon fiber/polyetheretherketone composites

Liu

Zhao

Fan

et al. 2021

Polymers for Advanced Techs

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The interaction between carbon fiber (CF) and thermoplastic resin presents weakened characteristic, which can be problematic of composites in structural applications. Therefore, it is of great significance to research techniques of CF surface modification to strengthen the interface of composites. Herein, based on the optimization of emulsion composition, polyetherimide (PEI) sizing involving carbon nanotubes (CNTs) was applied on CF surface to enhance the interface of CF/polyetheretherketone (PEEK) composites. The surface morphology, chemical characteristic, and surface energy of modified CF illustrate the effectiveness of this method, and the micro as well as macro interfacial properties of as‐prepared modified CF/PEEK demonstrate the increased tendency. This work may shed some light on industrialized application of the sizing agent for CF reinforced high‐performance engineering plastic composites.

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“…When treated by SVA, PEEK chains have more mobility and rearrange themselves toward the equilibrium state, which relieves internal stress. [ 40,47,48 ] Along with the stress releasing, the conformation of PEEK chains increased. The chains prefer to form coiled conformations, which caused the shrinkage (Figure 3i).…”

Section: Resultsmentioning

confidence: 99%

Improvement in Mechanical Properties of 3D‐Printed PEEK Structure by Nonsolvent Vapor Annealing

Chen

Zhang

Tan

et al. 2022

Macromol. Rapid Commun.

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The broad applications of 3D-printed poly-ether-ether-ketone (3D-PEEK) structures are largely hampered by their inadequate mechanical properties that can be improved by post treatments. At present, thermal annealing is generally used to improve the mechanical properties of 3D-PEEK. However, it cannot simultaneously improve strength and ductility. Here, a cost-effective postprocessing method is developed to improve the mechanical properties of 3D-PEEK, based on annealing in nonsolvent vapor at room temperature. The annealing in nonsolvent vapor at room temperature simultaneously improves the strength, ductility, and fracture energy of as-printed 3D-PEEK by 22.6%, 151.3%, and 109.1%, respectively. The improved mechanical properties are attributed to enhanced interfacial bonding, increased crystallinity, decreased pinhole defects, and stress relaxation in the 3D-PEEK. Moreover, the annealing in both polar solvents (such as acetone and chloroform) and nonpolar solvents (such as n-hexane) are demonstrated to be effective for improving the mechanical properties of 3D-PEEK. The nonsolvent vapor-annealed 3D-PEEK can thus have potential applications in the fields of medical implants, automotive, aerospace, and more.

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Strong Interface Construction of Carbon Fiber–reinforced PEEK Composites: An Efficient Method for Modifying Carbon Fiber with Crystalline PEEK

Cited by 47 publications

References 34 publications

The effect of annealing of milled carbon fibers on the mechanical and tribological properties of solid‐lubricant thermoplastic polyimide‐based composites

The effect of annealing of milled carbon fibers on the mechanical and tribological properties of solid‐lubricant thermoplastic polyimide‐based composites

Effects of polyetherimide sizing involving carbon nanotubes on interfacial performance of carbon fiber/polyetheretherketone composites

Improvement in Mechanical Properties of 3D‐Printed PEEK Structure by Nonsolvent Vapor Annealing

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