Study on the surface performance of carbon fibres irradiated by γ-ray under different irradiation dose

Li, Junqing; Huang, Yudong; Fu, Shao‐Yun; Liu, Yang; Qu, Hai‐Tao; Wu, Guangshun

doi:10.1016/j.apsusc.2009.09.035

Cited by 73 publications

(21 citation statements)

References 32 publications

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“…However, the untreated CF surface has big inertia and small active specific surface area, which affects the CF composite material's excellent performance into full play [1][2][3][4]. As a result, extensive researches have been devoted to the surface treatment of CF in order to improve interfacial properties of CF-reinforced composites, such as sizing process [5], electrochemical method [6], plasma treatment [7,8], and preparation of graphene oxide (GO)/CF hybrid fiber [9]. Among these methods, introducing GO on the surface of CF can enhance the interface properties of carbon-reinforced composites mostly, because GO on carbon fiber surface can well combined with the epoxy (EP) due to its epoxide groups, and other oxygen-based functional groups can establish the hydrogen bonding with epoxy resin [10].…”

Section: Introductionmentioning

confidence: 99%

Effects of electrophoretically deposited graphene oxide coatings on interfacial properties of carbon fiber composite

et al. 2015

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Graphene oxide (GO) was utilized to improve the interfacial performance of carbon fiber (CF) and epoxy resin. In this work, a simple and an effective way, without complex chemical reactions and long processing time, is proposed to prepare GO/CF hybrid fiber via electrophoretic deposition (EPD). In this method, ultrasonically assisted EPD is employed to deposit GO on CF when oxidized carbon fibers are continuously immersed into GO aqueous dispersion. Surface functional group, surface roughness, and surface morphologies of carbon fibers were examined by Fourier transform infrared spectrometer, atomic force microscopy, and scanning electron microscopy, respectively. Surface free energy of the fiber was characterized by dynamic contact angle analysis. Results show that uniform GO coating with rough morphology can be formed on carbon fibers. Moreover, surface wettability of carbon fibers to epoxy resin is significantly improved by enhanced surface free energy due to the deposition of GO. Meanwhile, the introduction of GO in the carbon fiber/epoxy resin composites results in a 56.1 % enhancement in the interfacial shear strength which confirms the remarkable improvement in the interfacial adhesion strength of the composites. The interfacial fracture mechanism was also analyzed.

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Section: Introductionmentioning

confidence: 99%

Effects of electrophoretically deposited graphene oxide coatings on interfacial properties of carbon fiber composite

et al. 2015

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“…According to Wang and Zhang, the incorporation of CFs can significantly improve the friction‐reducing and anti‐wear abilities of polyimide (PI) under dry sliding conditions, while Li and Cheng found the incorporation of CFs into PI can generally reduce the wear rate of composites, but may either increase or reduce the friction coefficient with different CF contents. Aromatic PI fiber has been recognized as one of the most important high‐performance polymeric fibers with superior performances such as excellent thermal stability, good chemical resistance, radiation shielding capability, and so on . In order to expand the application of the PI fibers, mechanical properties and other performance need to be improved.…”

Section: Introductionmentioning

confidence: 99%

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Chunzheng

2018

Surface & Interface Analysis

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The poor interfacial adhesion between carbon fibers (CFs) and polyimide (PI) resin has seriously hampered the application of CF/PI composites. In this work, the interfacial adhesion was efficiently enhanced by grafting on the CF surface. Surface morphology and surface composition of modified carbon fibers were characterized, which indicated that acrylamide was grafted successfully on the CF surface and the surface roughness was increased slightly. After grafting, the interface shear strength of modified carbon fibers/PI composites was significantly improved by 86.96%, and the interlaminar shear strength was enhanced by 55.61% due to the covalent bonds in interphase and the toughening effect of sizing agent. Moreover, the mechanical properties of composites with different interfacial adhesion were measured, which further confirmed the effect of the grafting modification.

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“…When the irradiation dose was 250KGy, the O/C ratio value and the grafting rate was still increased but the ILSS of the CF/epoxy composites was decreased, the shape of irradiation grafting had been changed as showed in Fig. . Therefore, carbon fiber modified by excessive irradiation dose caused adverse effects in the interface properties of CF/epoxy composites.…”

Section: Resultsmentioning

confidence: 99%

Surface modification of carbon fiber via electron‐beam irradiation grafting

Zhenjuan

Wang

Deng

et al. 2012

Surface & Interface Analysis

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In this paper, the surface properties of polyacrylonitrile-based carbon fibers is improved by electron-beam (EB) irradiation in maleic anhydride/acetone solution at 100, 150, 200 and 150 KGy. Experimental study of this paper is carried out to identify surface topography, surface chemical composition and functional groups, adsorption ability and interface properties of CF/ epoxy composites. The results reveal that the roughness of carbon fiber surface is increased obviously after modification by EB irradiation grafting technology. The ratio value of O/C and the relative content of oxygen functional groups on fiber surface are improved effectively, comparing with the unmodified carbon fiber. Besides, adsorption of carbon fiber on epoxy and the mechanical performance of CF/epoxy composites are clearly enhanced after irradiation grafting modification.

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Study on the surface performance of carbon fibres irradiated by γ-ray under different irradiation dose

Cited by 73 publications

References 32 publications

Effects of electrophoretically deposited graphene oxide coatings on interfacial properties of carbon fiber composite

Effects of electrophoretically deposited graphene oxide coatings on interfacial properties of carbon fiber composite

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Surface modification of carbon fiber via electron‐beam irradiation grafting

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