Improvement of structural, thermal and mechanical properties of epoxy composites and bonded joints exposed to water environment by incorporating boron nanoparticles

Korkmaz, Yasemin; Gülteki̇n, Kürşat

doi:10.1016/j.ijadhadh.2022.103141

Cited by 25 publications

(6 citation statements)

References 38 publications

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“…Changes in functional groups of the neat EP and HNT/EP nanocomposites were analyzed by specific wavenumbers. According to the previous studies, some peaks were applied to detect the chemical 10 Journal of Nanomaterials structure change of the EP (and its nanocomposites) or the EP suffered by aging conditions [36][37][38][39][40]. The peaks of all aged and nonaged samples at 3400 cm -1 belong to -OH groups.…”

Section: Flexural Properties Under Composite Aging Conditionsmentioning

confidence: 99%

Mechanical Properties of the Epoxy Resin Composites Modified by Nanofiller under Different Aging Conditions

Yang

Xiao

et al. 2022

Journal of Nanomaterials

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The effects of aging conditions on the mechanical properties of epoxy resin (EP) with halloysite nanotube (HNT) were studied. The aging conditions include soaking in water at various temperatures, soaking in acid solution, soaking in alkali solution, thermal shock cycling (TSC), and soaking coupled with subsequent thermal shock cycling (i.e., composite aging conditions). Under aging conditions, the EP is degraded, plasticized, and swelled, resulting in different degrees of cracks and pores in EP. The tensile and bending properties of EP and HNT/EP nanocomposites decreased after aging, indicating that the durability of the EP decreased under aging conditions. The addition of HNT could improve the immersion aging resistance and delay the immersion aging behavior of EP. Under TSC conditions, the reduction in mechanical properties of HNT/EP nanocomposites with HNT is slightly more than that of the neat EP due to different thermal expansion coefficients between HNT and EP. The fracture morphology and chemical change were studied to reveal the aging degradation mechanisms in the presence of HNT addition.

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Section: Flexural Properties Under Composite Aging Conditionsmentioning

confidence: 99%

Mechanical Properties of the Epoxy Resin Composites Modified by Nanofiller under Different Aging Conditions

Yang

Xiao

et al. 2022

Journal of Nanomaterials

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“…However, the relentless evolution of these industries necessitates the continuous improvement of these coatings to meet the ever-increasing performance demands. One of the most promising strategies to achieve this is the incorporation of nanoparticles into the epoxy matrix [ 8 , 9 ], a technique that has the potential to significantly enhance the mechanical strength and anti-corrosion properties of the coatings [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Nanoparticles: Enhanced Mechanical and Corrosion Protection Properties of Epoxy Coatings Incorporated with SiO2 and ZrO2

et al. 2023

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This research paper presents the fabrication of epoxy coatings along with the hybrid combination of SiO2 and ZrO2. The epoxy resin is incorporated with SiO2 as the primary pigment and ZrO2 as the synergist pigment. The study delves into the adhesion, barrier, and anti-corrosion properties of these coatings, enriched with silica and zirconium nanoparticles, and investigates their impact on the final properties of the epoxy coating. The epoxy resin, a Diglycidyl ether bisphenol-A (DGEBA) type, is cured with a polyamidoamine adduct-based curing agent. To evaluate the protective performance of silica SiO2 and zirconia ZrO2 nanoparticles in epoxy coatings, the coated samples were tested in a 3.5% NaCl solution. The experimental results clearly demonstrate a remarkable improvement in the ultimate tensile strength (UTS), yield strength (YS), and Elastic Modulus. In comparison to using SiO2 separately, the incorporation of both ZrO2 and SiO2 resulted in a substantial increase of 43.5% in UTS, 74.2% in YS, and 8.2% in Elastic Modulus. The corrosion test results revealed that the combination of DGEBA, SiO2, and ZrO2 significantly enhanced the anti-corrosion efficiency of the organic coatings. Both these pigments exhibited superior anti-corrosion effects and mechanical properties compared to conventional epoxy coatings, leading to a substantial increase in the anti-corrosion efficiency of the developed coating. This research focuses the potential of SiO2 and ZrO2 in hybrid combination for applications, where mechanical, corrosion and higher adhesion to the substrates are of prime importance.

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“…Via molecular dynamics simulations, Zhu et al [25] found that the helical graphenes modified epoxy resin had higher Young's modulus and yield strength than pure epoxy resin. Korkmaz et al [26] improved the mechanical properties of epoxy after hydrothermal ageing by incorporating boron nanoparticles. Shen et al [27] used AgO nanoparticles as fillers to improve the tensile strength and bending strength of epoxy.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performances of Phenolic Modified Epoxy Resins at Room and High Temperatures

Zhao

Xiao

et al. 2022

Coatings

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Epoxy is an important resin matrix and has been widely applied in laminated composites as a coating or adhesive material. In this article, the phenolic was applied to modify the mechanical properties of epoxy resin. The phenolic modified epoxy resins with various phenolic content were prepared via a polytetrafluoroethylene mould, and the phenolic modified epoxy-based plain woven laminated composites (PWLCs) were manufactured via vacuum assisted resin transfer method for further study of phenolic modified epoxy resins’ mechanical properties. The compression tests were performed perpendicularly to thickness at 2 mm/min to investigate the mechanical performances of phenolic modified epoxy resins and epoxy-based PWLCs. The results showed that the addition of phenolic into epoxy could improve the mechanical performances of epoxy resins and epoxy-based composites at room temperature, and the phenolic influenced epoxy-based PWLC more than epoxy matrix at room temperature. However, at high temperatures, the addition of phenolic decreased the mechanical performances of epoxy resins and epoxy-based composites, and the adverse effect of phenolic became more serious with the increase of phenolic content at high temperature. In addition, the thermogravimetric analyses were also conducted from 30 °C to 800 °C on phenolic modified epoxy resins and the results showed that the phenolic modified epoxy resin had an earlier loss in weight than unmodified epoxy resin. The earlier loss in weight meant that the addition of phenolic into epoxy resin led to the formation of unstable molecules at high temperature.

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Improvement of structural, thermal and mechanical properties of epoxy composites and bonded joints exposed to water environment by incorporating boron nanoparticles

Cited by 25 publications

References 38 publications

Mechanical Properties of the Epoxy Resin Composites Modified by Nanofiller under Different Aging Conditions

Mechanical Properties of the Epoxy Resin Composites Modified by Nanofiller under Different Aging Conditions

Synergistic Effect of Nanoparticles: Enhanced Mechanical and Corrosion Protection Properties of Epoxy Coatings Incorporated with SiO2 and ZrO2

Mechanical Performances of Phenolic Modified Epoxy Resins at Room and High Temperatures

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