High micromechanical interlocking graphene oxide/carboxymethyl cellulose composite architectures for enhancing the interface adhesion between carbon fiber and epoxy

Ling

et al. 2022

Mater. Chem. Front.

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“…The ILSS was the strength limit of the composite material under interlaminar shear loading, which can directly evaluate the interlaminar properties of composite materials. 41…”

Section: Resultsmentioning

confidence: 99%

A novel eco-friendly strategy on the interfacial modification of a carbon-fiber-reinforced polymer composite via chitosan encapsulation

Ling

et al. 2022

Mater. Chem. Front.

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“…Due to the influence of the production process and environment, surface cracks, mechanical damage, and internal holes are unavoidable. 44 This is the reason that the tensile strength of the fiber has greater dispersion. Figure 4a The single-fiber tensile strength test is presented in Figure 4b.…”

Section: Resultsmentioning

confidence: 99%

“…CF is a brittle material. Due to the influence of the production process and environment, surface cracks, mechanical damage, and internal holes are unavoidable . This is the reason that the tensile strength of the fiber has greater dispersion.…”

Section: Results and Discussionmentioning

confidence: 99%

Green and Nondestructive Method for Constructing Multiscale Carbon Fiber Reinforcement via Encapsulating Chitosan and Grafting Carbon Nanotubes

Luo

et al. 2021

ACS Appl. Nano Mater.

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To enhance the interfacial properties of carbon fiber-reinforced polymer (CFRP) composites, chitosan (CS) and carbon nanotubes (CNTs) were used to construct multilayer structures on the surface of the CF. CFs were first encapsulated by CS through hydrogen bonding and electrostatic action to form a uniform membrane with a thickness of 32 nm. Then, CNTs were grafted on the CS layer to obtain a multilayer membrane with a thickness of 45−60 nm, resulting in improved roughness and wettability of CFs. Subsequently, CFRP composites were prepared by impregnating multiscale CFs with epoxy resin. Compared with that of untreated CFRP composites, the interfacial shear strength, transverse fiber bundle tensile strength, and interlaminar shear strength of the CS-encapsulated and CNT-grafted CFRP composites increased by 91.61% (75.61 MPa), 63.61% (32.78 MPa), and 37.73% (83.24 MPa), respectively. This work provides a green and nondestructive method to optimize the interfacial interactions between CFs and the polymer matrix, which can effectively expand the application field of CFRPs.

“…Because of its particular strength, high stiffness, and resistance to acid erosion, carbon fiber (CF) reinforced polymer composites are widely used in the aerospace, renewable energy, and sporting events, among others. − Composite interfaces have a key part in determining the overall property composites. − Poor wettability, limited physical–chemical interactions, and smooth surface of CFs prevent the formation of a strong contact. − In recent years, the multiscale reinforcement structures constructed by nanomaterials to enhance the comprehensive properties of composites have attracted great interest. − Due to its extremely efficient interface, graphene oxide (GO) is regarded as a viable option for preparing high-performance composites, great chemical activities, and exceptional mechanical properties. − …”

Section: Introductionmentioning

confidence: 99%

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

Sun

Qiu

et al. 2022

ACS Appl. Nano Mater.

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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.