Graphene Oxide/Polymer-Based Multi-scale Reinforcement Structures for Enhanced Interfacial Properties of Carbon Fiber Composites

Abstract

The development of nano-reinforced materials to form structural composites relies on controlling interfaces between nanomaterials and the bulk material to yield materials that can be applied in fields such as aerospace, wind power energy, and transportation. This paper describes experiments to design and control micro−nano multi-scale interfacial reinforced composites of carbon fiber using electrodeposition and electropolymerization in a one-step method. First, the adhesion of graphene oxide (GO) nanosheets on the fiber surface was effectively enhanced through the simultaneous deposition of GO nanosheets and electro-grafting of monomers. The deposition efficiency of GO nanosheets was significantly boosted with polymerization of monomers. The interlaminar shear strength and interfacial shear strength of the composites treated for only 120 s were increased from 40.8 and 50.5 to 54.6 and 73.9 MPa, an increase of 33.8 and 46.3%, respectively. Investigation of the mechanism of failure of the composites showed that it was due to the cohesive failure of the resin from interfacial debonding. This paper reports a theoretical and experimental basis for the continuous preparation of nano-reinforced carbon fiber and high-performance advanced composites.

Hydrogels from a Self-Assembling Tripeptide and Carbon Nanotubes (CNTs): Comparison between Single-Walled and Double-Walled CNTs

“…In this regard, carbon nanomaterials (CNMs) have become popular nanofillers for their exceptional physical and chemical properties [3], which can be modulated ad hoc through chemical derivatization [4,5]. Academic and industrial interest in CNMs has grown thanks to their wide applicability, spanning the diverse areas of catalysis [6][7][8] and energy [9][10][11], pollutant removal [12][13][14][15], aerospace and automotive transport [16,17], targeted drug delivery [18,19], theranostics [20,21], bioimaging [22,23], sensing [24][25][26], regenerative medicine [27][28][29], and flexible electronics [30,31].…”

Improving the Tribological Performance of Phosphate-Bonded Coatings Reinforced by Carbon Fiber/Graphene Oxide

“…More importantly, it can be produced in large quantities at a relatively low cost and is rich in oxygen-containing functional groups such as epoxides and hydroxyl and carboxyl groups, making it easy to modify . Modifying CF with GO (CF-GO) has become a popular way to improve the bond strength between CF and the matrix, attributing to the greater specific surface area of CF-GO. − In addition, GO can be well dispersed in the matrix when GO is grafted on CF.…”