A simple method to evaluate adhesion strength between metal layer and carbon fiber surface in metal-coated carbon fibers

The wetting kinetics of a solid surface by a molten metal decrease with increase of its roughness. The topography of the growing copper coating, produced on carbon fiber surface by electroplating from a sulphat bath, has been studied by scanning electron microscopy. The smoothes surface is produced after 200÷300 milliampere-hour of plating.

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Improved interfacial and impact properties of carbon fiber/epoxy composites through grafting hyperbranched polyglycerols on a carbon fiber surface

e-Polymers ◽

10.1515/epoly-2013-0029 ◽

2014 ◽

Vol 14 (2) ◽

pp. 145-150 ◽

Cited By ~ 5

Author(s):

Kaiqiang Sui ◽

Qingbo Zhang ◽

Yingying Liu ◽

Lei Tan ◽

Li Liu

Keyword(s):

Contact Angle ◽

Shear Strength ◽

Carbon Fiber ◽

Carbon Fibers ◽

Dynamic Contact Angle ◽

Fiber Surface ◽

Dynamic Contact ◽

Impact Properties ◽

Carbon Fiber Surface ◽

Contact Angle Analysis

AbstractGrafting hyperbranched polyglycerols onto a carbon fiber surface is done in an attempt to improve the interfacial and impact properties between carbon fiber and epoxy resin. Scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and dynamic contact angle analysis were performed to characterize the carbon fibers. The TGA result shows that the mass fraction of the hyperbranched polyglycerols grafted onto the carbon fibers surface was 9.03%. The SEM results indicate that the hyperbranched polyglycerols have been grafted onto the carbon surface and that the surface roughness of the carbon fiber significantly increased. The XPS result indicates that oxygen-containing functional groups obviously increased after modification. Dynamic contact angle analysis indicates that the surface energy of modified carbon fibers increased significantly compared with the untreated ones. Results of the mechanical property tests show that interfacial shear strength increased from 59.86 to 80.16 MPa, interlaminar shear strength increased from 57.57 to 73.49 MPa and impact strength simultaneously increased from 2.52 to 3.52 J.

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Influence of an oxidation of the carbon fiber surface on the adhesion strength in carbon fiber-acrylate composites cured by electron beam

International Journal of Adhesion and Adhesives ◽

10.1016/j.ijadhadh.2011.11.006 ◽

2012 ◽

Vol 34 ◽

pp. 93-106 ◽

Cited By ~ 20

Author(s):

F. Vautard ◽

P. Fioux ◽

L. Vidal ◽

J. Schultz ◽

M. Nardin ◽

...

Keyword(s):

Electron Beam ◽

Carbon Fiber ◽

Adhesion Strength ◽

Fiber Surface ◽

Carbon Fiber Surface

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Effect of Carbon Fiber Surface Roughness on Interfacial Adhesion Strength between Carbon Fiber and Epoxy Resin

Sen i Gakkaishi ◽

10.2115/fiber.49.18 ◽

1993 ◽

Vol 49 (1) ◽

pp. 18-25 ◽

Cited By ~ 1

Author(s):

Fujio Nakao ◽

Hajime Asai

Keyword(s):

Surface Roughness ◽

Carbon Fiber ◽

Epoxy Resin ◽

Adhesion Strength ◽

Interfacial Adhesion ◽

Fiber Surface ◽

Carbon Fiber Surface ◽

Interfacial Adhesion Strength

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Polyetheretherketone Composites with Appreted Carbon Fibers

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.899.540 ◽

2021 ◽

Vol 899 ◽

pp. 540-547

Author(s):

Aues A. Beev ◽

Dzhul’etta A. Beeva ◽

M.U. Shokumova ◽

M.R. Tlenkopachev ◽

Muaed M. Oshkhunov

Keyword(s):

Mechanical Properties ◽

Carbon Fiber ◽

Surface Treatment ◽

Carbon Fibers ◽

Thermal Activation ◽

Fiber Surface ◽

Physical And Mechanical Properties ◽

Carbon Fiber Surface ◽

Fiber Surface Treatment ◽

Composite Carbon

The paper investigates the processes of carbon fiber surface treatment and their influence on the properties of polyetheretherketone composites. It has been shown that preliminary thermal activation of carbon fiber followed by treatment with a dressing agent - polyhydroxyether makes it possible to create polyetheretherketone composite carbon-filled materials with an increased level of physical and mechanical properties.

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Carbon Fiber and Nickel Coated Carbon Fiber–Silica Aerogel Nanocomposite as Low-Frequency Microwave Absorbing Materials

Materials ◽

10.3390/ma13020400 ◽

2020 ◽

Vol 13 (2) ◽

pp. 400 ◽

Cited By ~ 2

Author(s):

Agnieszka Ślosarczyk ◽

Łukasz Klapiszewski ◽

Tomasz Buchwald ◽

Piotr Krawczyk ◽

Łukasz Kolanowski ◽

...

Keyword(s):

Carbon Fiber ◽

Carbon Fibers ◽

Silica Aerogel ◽

Fiber Surface ◽

Industrial Applications ◽

Absorption Capacity ◽

Radiation Absorption ◽

Fiber Volume ◽

Initial Oxidation ◽

Coated Carbon

Silica aerogel-based materials exhibit a great potential for application in many industrial applications due to their unique porous structure. In the framework of this study, carbon fiber and nickel coated carbon fiber–silica aerogel nanocomposites were proposed as effective electromagnetic shielding material. Herein, the initial oxidation of the surface of carbon fibers allowed the deposition of a durable Ni metallic nanolayer. The fibers prepared in this way were then introduced into a silica aerogel structure, which resulted in obtaining two nanocomposites that differed in terms of fiber volume content (10% and 15%). In addition, analogous systems containing fibers without a metallic nanolayer were studied. The conducted research indicated that carbon fibers with a Ni nanolayer present in the silica aerogel structure negatively affected the structural properties of the composite, but were characterized by two-times higher electrical conductivity of the composite. This was because the nickel nanolayer effectively blocked the binding of the fiber surface to the silica skeleton, which resulted in an increase of the density of the composite and a reduction in the specific surface area. The thermal stability of the material also deteriorated. Nevertheless, a very high electromagnetic radiation absorption capacity between 40 and 56 dB in the frequency range from 8 to 18 GHz was obtained.

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Preparation of thick silica coatings on carbon fibers with fine-structured silica nanotubes induced by a self-assembly process

Beilstein Journal of Nanotechnology ◽

10.3762/bjnano.8.116 ◽

2017 ◽

Vol 8 ◽

pp. 1145-1155 ◽

Cited By ~ 5

Author(s):

Benjamin Baumgärtner ◽

Hendrik Möller ◽

Thomas Neumann ◽

Dirk Volkmer

Keyword(s):

Carbon Fiber ◽

Carbon Fibers ◽

High Surface ◽

Fiber Surface ◽

Silica Coating ◽

High Catalytic Activity ◽

Covalent Bonds ◽

Linear Poly ◽

Carbon Fiber Surface ◽

Long Chain

A facile method to coat carbon fibers with a silica shell is presented in this work. By immobilizing linear polyamines on the carbon fiber surface, the high catalytic activity of polyamines in the sol–gel-processing of silica precursors is used to deposit a silica coating directly on the fiber’s surface. The surface localization of the catalyst is achieved either by attaching short-chain polyamines (e.g., tetraethylenepentamine) via covalent bonds to the carbon fiber surface or by depositing long-chain polyamines (e.g., linear poly(ethylenimine)) on the carbon fiber by weak non-covalent bonding. The long-chain polyamine self-assembles onto the carbon fiber substrate in the form of nanoscopic crystallites, which serve as a template for the subsequent silica deposition. The silicification at close to neutral pH is spatially restricted to the localized polyamine and consequently to the fiber surface. In case of the linear poly(ethylenimine), silica shells of several micrometers in thickness can be obtained and their morphology is easily controlled by a considerable number of synthesis parameters. A unique feature is the hierarchical biomimetic structure of the silica coating which surrounds the embedded carbon fiber by fibrillar and interconnected silica fine-structures. The high surface area of the nanostructured composite fiber may be exploited for catalytic applications and adsorption purposes.

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