Greatly enhanced cryogenic mechanical properties of short carbon fiber/polyethersulfone composites by graphene oxide coating

Li, Fēi; Yang, Hua; Qu, Cheng-Bing; Xiao, Hong‐Mei; Fu, Shao‐Yun

doi:10.1016/j.compositesa.2016.02.016

Cited by 69 publications

(43 citation statements)

References 50 publications

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“…As shown from Figure a to 4e, exposed SCFs could be observed from all these fracture surfaces. For the untreated SCF/PEEK composites, the pulled out SCFs did not have any remaining PEEK matrix on the surface, and the gaps between fibers and the PEEK matrix were quite huge (Figure a), indicating a relatively weak interfacial adhesion . Oppositely, the images of the modified SCFs and PEEK matrix were tightly integrated without significantly gaps, this elucidated that PI coating on the carbon fibers could effectively improve the bonding and compatibility between the SCFs and the PEEK matrix.…”

Section: Resultsmentioning

confidence: 88%

Improving the Interfacial Adhesion of Carbon Fiber/Polyether Ether Ketone Composites by Polyimide Coating

Wang

Jiao

et al. 2020

ChemistrySelect

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Polyimide (PI) as a sizing agent for short carbon fiber (SCF) was explored, and a series of SCF-reinforced polyether ether ketone (PEEK) composites with PI sizing concentrations varying from 0 to 2.0 wt % were fabricated using the extrusion and injection molding techniques. It was found that the PI sizing layer forms homogeneously and compact on the SCF surfaces, and when the PI sizing concentrations was 1.0 wt %, the tensile strength and flexural strength of the corresponding SCF/PEEK composite was significantly increased by 16.8 % and 8.2 % respectively in comparison with the untrelated case. Additionally, dynamic mechanical analysis (DMA) curves demonstrated that storage modulus of SCF/PEEK composites were enhanced with the increasing concentration of PI sizing, resulting the higher stiffness and the lower damping behavior of the composites. Further, the single fiber pull-out testing was also measured, with the increased interfacial shear strength (IFSS) of CF/PEEK composites by 24.8 % from 70.6 to 88.1 MPa for the CF modified with 1.0 wt % PI sizing, which illustrated that PI sizing can improve fiber surface wettability and interfacial adhesion between CF and PEEK.

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Section: Resultsmentioning

confidence: 88%

Improving the Interfacial Adhesion of Carbon Fiber/Polyether Ether Ketone Composites by Polyimide Coating

Wang

Jiao

et al. 2020

ChemistrySelect

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“…PES reinforced by graphene oxide (GO)‐coated SCFs and SGFs have been investigated by our group and it is shown that the tensile and flexural properties of PES both at room temperature and a typical cryogenic temperature of 77 K are effectively enhanced by the addition of GO coated‐SGFs and SCFs. . In addition, it was reported that the wear performance of PES composites incorporated with individual SGFs or SCFs was improved by an order of two and three, respectively .…”

Section: Introductionmentioning

confidence: 98%

“…Polyethersulfone (PES) is an amorphous engineering thermoplastic consisting of repeated phenyl, ether, and sulfone groups, which can be processed with conventional plastic processing equipment . The heat deflection and glass transition temperature of PES is as high as 200 and 225°C, respectively, which enables its outstanding thermal stability with operation temperature up to 180°C .…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of short glass fiber/short carbon fiber hybrids on the mechanical properties of polyethersulfone composites

Liu³

et al. 2018

Polymer Composites

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Polyethersulfone (PES) is one of important high performance engineering thermoplastics but its mechanical and tribological properties are not comparable to those of metals and have to be enhanced in order to widen its applications. In this work, both short glass fibers (SGFs) and short carbon fibers (SCFs) are employed to reinforce PES and the SCF/SGF/PES composites were prepared using melt blending and injection molding techniques. The simultaneous usage of SCFs and SGFs with various volume ratios is to examine their possible synergistic effects in reinforcing PES. The results reveal that the tensile and flexural properties as well as wear resistance are all enhanced by the addition of both SCFs and SGFs. The tensile/flexural strength and modulus of the hybrid PES composites increase with increasing the SCFs volume fraction in fillers. Meanwhile, the friction coefficient and specific wear rate of the hybrid PES composites decrease with increasing the SCFs volume fraction in fillers. Interestingly, the tensile strength, flexural strength and wear resistance of the hybrid SCF/SGF/PES composites at proper SCF/SGF volume fraction ratios are obviously higher than those predicted by the rule of mixtures, representing the typical positive synergistic effects of SCFs and SGFs. Consequently, it is promising to employ both expensive SCFs and cheap SGFs at proper SCF/SGF volume fraction ratios for reinforcing PES in considering the combination of properties and cost. POLYM. COMPOS., 40:E1725–E1731, 2019. © 2018 Society of Plastics Engineers

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“…In recent decades, chopped carbon fiber (CCF)‐ or short carbon fiber (SCF)‐reinforced polymer composites have been experimentally and theoretically investigated and extensively applied in automotive, aerospace, electronics, medicine, sporting goods and transportation, because of their attractive mechanical properties, good processability, low manufacturing costs and so on . Among the polymer matrices for these composites, significant attention has been paid to thermoplastics due to their recycling convenience, no requirement for curing stage and mass production capability compared with traditional thermosetting resins.…”

Section: Introductionmentioning

confidence: 99%

Fiber length distribution and thermal, mechanical and morphological properties of thermally conductive polycarbonate/chopped carbon fiber composites

Bai

et al. 2018

Polymer International

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Greatly enhanced cryogenic mechanical properties of short carbon fiber/polyethersulfone composites by graphene oxide coating

Cited by 69 publications

References 50 publications

Improving the Interfacial Adhesion of Carbon Fiber/Polyether Ether Ketone Composites by Polyimide Coating

Improving the Interfacial Adhesion of Carbon Fiber/Polyether Ether Ketone Composites by Polyimide Coating

Synergistic effects of short glass fiber/short carbon fiber hybrids on the mechanical properties of polyethersulfone composites

Fiber length distribution and thermal, mechanical and morphological properties of thermally conductive polycarbonate/chopped carbon fiber composites

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