Improving the interfacial properties of carbon fibers/vinyl ester composites by vinyl functionalization on the carbon fiber surface

Zhang, Xiuping; Liu, Liu; Li, Ming; Chang, Yanjie; Shang, Lei; Dong, Jinglong; Xiao, Linghan; Ao, Yuhui

doi:10.1039/c6ra00829a

Cited by 24 publications

(20 citation statements)

References 30 publications

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“…Such structural imperfections and the polarization of the material by the pyridine moieties facilitate a chemical functionalization by oxidizing over H 2 SO 4 /H 2 O 2 (1:1). Such reactivity has previously been reported for modification of carbon fibers to increase their interaction with polymeric matrices …”

Section: Resultssupporting

confidence: 53%

“…Such reactivity has previously been reported for modificationo fc arbon fibers to increaset heir interaction with polymeric matrices. [42][43][44] Althoughh arsh, such conditions are knownt ob ei nnocuous to graphite, which needs harsher conditions to be transformed into graphene oxide. [45] After the oxidation process, the electric conductivity was not lost, as measured with am acroscopic multimeter.T his is ag ood indication that the bulk properties of fibers are not altered.…”

Section: Preparation and Characterization Of The Catalyticmaterialsmentioning

confidence: 99%

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Bioinspired Electro‐Organocatalytic Material Efficient for Hydrogen Production

Moral

Call

Franco

et al. 2018

Chemistry A European J

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Commercial carbon fibers can be used as electrodes with high conductive surfaces in reduced devices. Oxidative treatment of such electrodes results in a chemically robust material with high catalytic activity for electrochemical proton reduction, enabling the measurement of quantitative faradaic yields (>95 %) and high current densities. Combination of experiments and DFT calculations reveals that the presence of carboxylic groups triggers such electrocatalytic activity in a bioinspired manner. Analogously to the known Hantzsch esters, the oxidized carbon fiber material is able to transfer hydrides, which can react with protons, generating H , or with organic substrates resulting in their hydrogenation. A plausible mechanism is proposed based on DFT calculations on model systems.

show abstract

Section: Resultssupporting

confidence: 53%

Section: Preparation and Characterization Of The Catalyticmaterialsmentioning

confidence: 99%

Bioinspired Electro‐Organocatalytic Material Efficient for Hydrogen Production

Moral

Call

Franco

et al. 2018

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…This arrangement will have the advantage of a complex, hierarchical structure because of the bond between the matrix and the traditional fibers in addition to the smaller‐scale bond between the nanoparticles and the polymer matrix . Many methods have incorporated chemical vapor deposition, chemical grafting, electrophoretic deposition, etc. These methods effectively attach nanoparticles to the surface of the fiber.…”

Section: Introductionmentioning

confidence: 99%

Improved interfacial properties of PI composites through graphene oxide and carbon nanotubes on carbon fiber surface

Chunzheng

2018

Surface & Interface Analysis

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Carbon nanotubes (CNTs) have been identified as excellent nanoreinforcements for carbon fiber (CF)-reinforced polymers regarding a wide range of engineering applications. The outstanding properties of CNTs, such as their large surface area, high mechanical strength, and low manufacturing cost bring them to be distinguished nanoreinforcements for carbon fiber-reinforced polymers to form multifunctional and multiscale composites. Electrophoretic deposition of graphene oxide for CNTs onto the CF surface was conducted. The presence of graphene oxide-CNTs may effectively increase both the roughness and wettability of the CF surface, resulting in an improvement to the interfacial bonding strength between the CF and the polyimide (PI).

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“…Generally, there are 2 approaches to improve the mechanical properties of PI fibers: to structurally modify the aromatic PIs and to fabricate PI‐based composites with reinforcements. For the structure modification, such as introducing rigid heterocyclic units to the polymer backbones, several researchers have made great efforts …”

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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Improving the interfacial properties of carbon fibers/vinyl ester composites by vinyl functionalization on the carbon fiber surface

Abstract: APMA functionalized CFs can significantly improve the interfacial adhesion properties of the carbon fiber reinforced vinyl ester resin composites.

Cited by 24 publications

References 30 publications

Bioinspired Electro‐Organocatalytic Material Efficient for Hydrogen Production

Bioinspired Electro‐Organocatalytic Material Efficient for Hydrogen Production

Improved interfacial properties of PI composites through graphene oxide and carbon nanotubes on carbon fiber surface

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

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