Comparison of interfacial adhesion of hybrid materials of aluminum/carbon fiber reinforced epoxy composites with different surface roughness

Kwon, Dong-Jun; Kim, Jong-Hyun; Kim, Yujeong; Kim, Jin-Jae; Park, Sung Min; Kwon, Il-Jun; Shin, Pyeong-Su; DeVries, Lawrence K.; Park, Joung-Man

doi:10.1016/j.compositesb.2019.04.022

Cited by 49 publications

(9 citation statements)

References 30 publications

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“…An increase in the total surface enables more reactions between the metal and the adhesive. However, based on the other authors’ results, it seems that in the case of sandblasting, when a certain roughness is exceeded, shear strength decreases because of roughness being too high, which blocks the effective ingress of the resin, causing it to settle on the peaks [ 51 , 52 , 53 ]. Optimum surface roughness allows obtaining high adhesion [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Droździel-Jurkiewicz

Bieniaś

2022

Materials

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The paper presents the issues of metal surface treatment in fibre metal laminates (FML) to obtain high adhesion at the metal–composite interface. Aluminium 2024-T3 and titanium Grade 2 were analysed. The metal surface modifications were carried out by mechanical (sandblasting, Scotch-Brite abrasion), chemical (P2 etching, phosphate-fluoride process), electrochemical (chromic and sulphuric acid anodizing), and plasma treatment, as well as the application of sol-gel coatings. In terms of surface geometry, the analysis included roughness and 3D surface topography examination. The morphology was examined using scanning electron and atomic force microscopy. The surface free energy and its components (polar and dispersive) were determined using the Owens–Wendt method. The novelty of this study is the determination of the effect of different surface treatments on the surface free energy, topography, and morphology in terms of the possible appropriate adhesion in fibre metal laminates. Chromic acid anodizing is still the most effective in enhancing the expected adhesion. A suitable technique may be the use of P2 etching of aluminium. It results in low roughness, numerous micro-irregularities, and the presence of porosity. The obtained test results show that the application of sol-gel coating increases the surface free energy and may increase the adhesion.

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Section: Resultsmentioning

confidence: 99%

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Droździel-Jurkiewicz

Bieniaś

2022

Materials

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“…Studies show that the increase in roughness on the fiber surface facilitates mechanical anchoring between fiber and matrix materials [ 9 , 50 ]. Some microstructures with rough surface shown in Figure 3 and Figure 4 seem to be beneficial to the interfacial bonding between fiber and resin composite.…”

Section: Resultsmentioning

confidence: 99%

Surface Structured Polymer Blend Fibers and Their Application in Fiber Reinforced Composite

et al. 2020

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Melt-spun surface structured fiber could be a large-scale versatile platform for materials with advanced surface function and local properties. Fibers with distinct surface and bulk structures are developed by tailoring the viscosity ratio and blend ratio of polymer component using the melt-spinning method. Spherical bulge and fibril groove structured fibers are obtained in different viscosity ratio and blend ratio systems. The interfacial bonding between fiber and matrix is improved due to the mechanical interlocking between the structured surface and matrix. The low-viscosity second phase stays as a spherical droplet even in high content. The second phase in matched- and high-viscosity ratio cases is deformed into fibril like droplet which causes an in-situ fibration of the second phase in polymer blend fiber with an enhanced mechanical property. This method provides a simple route to developing polymer materials with surface structure and appropriate mechanical properties to apply in textile and polymer fiber-reinforced composite materials.

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“…Adhesives play an increasingly important role in joining technology. They are indispensable for lightweight and hybrid structures, as they enable the joining of different materials, such as metals and polymers. − One major challenge in the development of adhesives is to achieve sufficiently high adhesive strength to the adherent surfaces. Over the years, numerous adhesion theories have been developed.…”

Section: Introductionmentioning

confidence: 99%

Bonding Mechanism of Cyanoacrylates on SiO₂ and Au: Spectroscopic Studies of the Interface

et al. 2021

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Cyanoacrylates form a highly reactive class of adhesives that provide significant adhesive strength to surfaces within a few seconds. Despite their commercial use, the exact bonding mechanism is virtually unknown. In the present work, we spin coat nanometer-thin films of ethyl cyanoacrylate on two model substrates: gold and silicon dioxide. This allows the interface to be studied directly with X-ray photoelectron spectroscopy (XPS). Thus, investigations are feasible to identify chemical interactions at the boundary between the adhesive and metal (oxide), which are possible reasons for film adhesion on the macroscopic scale. On SiO 2 , an increase in the binding energy of the OC−O group was observed in thin films, indicating hydrogen bonding with the oxide surface. Metastable induced electron spectroscopy measurements consistently indicate a preferential orientation of the carbonyl group toward the silicon dioxide surface. Furthermore, evidence for an ionic interaction of the adhesive via a carboxylate ion (COO − ) with the SiO 2 substrate was found by XPS. On gold, on the other hand, neither evidence of an ionic interaction nor evidence of hydrogen bonding could be found.

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Comparison of interfacial adhesion of hybrid materials of aluminum/carbon fiber reinforced epoxy composites with different surface roughness

Cited by 49 publications

References 30 publications

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Surface Structured Polymer Blend Fibers and Their Application in Fiber Reinforced Composite

Bonding Mechanism of Cyanoacrylates on SiO₂ and Au: Spectroscopic Studies of the Interface

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Comparison of interfacial adhesion of hybrid materials of aluminum/carbon fiber reinforced epoxy composites with different surface roughness

Cited by 49 publications

References 30 publications

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Evaluation of Surface Treatment for Enhancing Adhesion at the Metal–Composite Interface in Fibre Metal-Laminates

Surface Structured Polymer Blend Fibers and Their Application in Fiber Reinforced Composite

Bonding Mechanism of Cyanoacrylates on SiO2 and Au: Spectroscopic Studies of the Interface

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Bonding Mechanism of Cyanoacrylates on SiO₂ and Au: Spectroscopic Studies of the Interface