Effect of nanoparticles on epoxy based composites: A short review

Thakur, Ankur; Sharma, Nitin; Kango, Saurabh; Sharma, Sumit

doi:10.1016/j.matpr.2020.10.924

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…and easy casting with low cost compared to other materials. [1][2][3][4]. However, epoxy/ polyurethane reinforced by fiber material such as glass wool and rock wool, possess outstanding characteristics such as high dielectric constant and good thermal stability, low density and hence high specific stiffness and strength which make them highly suitable for used in the manufacturing technology [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Dielectric Relaxation, Electric Conductivity and Thermodynamic Studies on Epoxy Polyurethane Blend and Their Composites

Shokralla

2024

IJMSA

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The purpose of this study is to improve the dielectric properties of epoxy-based polymer composites by adding rock and glass wool to achieve a relatively high dielectric constant and lower dispersion; hence the dielectric relaxation of composite materials which combines of epoxy/polyurethane reinforced with fibrous materials (rock wool (RW) and glass wool (GW)) with constant weight fraction of (10%) were investigated. The data of AC conductivity have been analyzed in the light of different theoretical models based on correlated barrier hopping (CBH) and Maxwell-Wagner model. The dielectric measurements were carried out for all samples over the frequency range of (10 2 -10 7 ) Hz and over temperature range of (293-463) K 0 . It is found that all samples displayed dielectric dispersion, thus the result for dielectric constant and dissipation factor give a direct evidence of the existence of Debye relaxation leaving a wide distribution of relaxation time. Eyring's relaxation rate equation have been used to determine the thermodynamic parameters, Gibbs free energy of activations and enthalpy for all samples. The results showed the existence of a stronger intermolecular interaction in all samples.

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Section: Introductionmentioning

confidence: 99%

Dielectric Relaxation, Electric Conductivity and Thermodynamic Studies on Epoxy Polyurethane Blend and Their Composites

Shokralla

2024

IJMSA

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“…Additionally, producing epoxy composites using nanoceramics is difficult. Optimizing material characteristics requires homogeneous nanoparticle dispersion in the epoxy matrix, which may be difficult [15].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Tribological Characteristics of Epoxy Composites by the Use of Three-Dimensional Carbon Fibers and Cobalt Oxide Nanowires

Muad Muhammed Ali,

Haidar Akram Hussein,

Nabil Kadhim Taieh

et al. 2024

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In this paper, the results of our research were presented into the sliding wear behaviors of reinforced epoxy composites made with 3D networked carbon fibers ornamented with nanowires of cobalt oxides (NWRs@CFs). Composites are made using the cast-in-place method. Under different normal loads and sliding velocities, these composites' wear and friction coefficient performances are assessed. Tests were performed at 400 rpm spindle speed, 10, 20, and 30 N normal load, and a duration of 300 seconds. Pure epoxy exhibits wear rates of 0.449, 0.481, and 0.501 * 10-5 mm3/Nm at 10, 20, and 30N. Conversely, 3D CFs/epoxy composites exhibit lower wear rates (0.334, 0.360, and 0.390 * 10-5 mm3/Nm) at the same pressure. The epoxy composites of NWRs@CFs wear less, measuring 2.1, 3.5, and 0.4 * 10-5 mm3/Nm under applied loads. The effects of speed on the tribological characteristics were also studied, the friction coefficients for 400, 800, and 600 rpm at 10 N. Pure Epoxy has fraction coefficients of 0.449, 0.494, and 0.552µ at 400, 800, and 600 rpm. In comparison, three-dimensional carbon fibers and epoxy composites show reduced wear rates (0.334, 0.376, and 0.304 µ) under identical loads. Epoxy composites of NWRs@CFs have friction coefficients of 0.261, 0.304, and 0.332µ. Pure epoxy has high wear, indicating less friction resistance.

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“…Thakur ve ark. [15], silika, alümina, grafen ve tungsten karbür gibi farklı nanoparçacıkların kompozitin mekanik özelliklerini ve aşınma direncini belli oranlarda iyileştirdiğini tespit etmişlerdir.…”

Section: Introductionunclassified

Al2O3 ve TiO2 nanopartikül katkısının cam elyaf takviyeli kompozitlerin mekanik özelliklerine ve burkulma davranışına etkisi

GÜVEN

Kısa

Özen

et al. 2022

Harran Üniversitesi Mühendislik Dergisi

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Bu çalışmada Al2O3 ve TiO2 nanopartikül takviyesinin e-cam elyaf takviyeli polimer kompozitlerin mekanik özelliklerine ve burkulma davranışına etkisi deneysel olarak incelenmiştir. Bu kapsamda saf, %2 Al2O3 katkılı ve %2 TiO2 katkılı e-cam elyaf takviyeli üç farklı kompozit plaka vakum destekli reçine infüzyon yöntemi ile üretilmiştir. E-cam elyaf olarak dokuma (woven) kumaş kullanılmış olup, üretilen plakalar CNC freze tezgâhında çekme, basma, eğilme, darbe ve burkulma deneylerini gerçekleştirmek için standartlara göre kesilmiştir. Elde edilen bulgular neticesinde %2 Al2O3 ve %2 TiO2 nanopartikül katkılı kompozitlerin, saf haldeki kompozite göre mekanik özellikleri ve burkulmadaki kritik yükü iyileştirdiği tespit edilmiş ve %2 Al2O3 katkılı kompozitin %2 TiO2 katkılı kompozite göre daha fazla iyileşme sağladığı görülmüştür.

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Effect of nanoparticles on epoxy based composites: A short review

Cited by 11 publications

References 18 publications

Dielectric Relaxation, Electric Conductivity and Thermodynamic Studies on Epoxy Polyurethane Blend and Their Composites

Dielectric Relaxation, Electric Conductivity and Thermodynamic Studies on Epoxy Polyurethane Blend and Their Composites

Enhancing the Tribological Characteristics of Epoxy Composites by the Use of Three-Dimensional Carbon Fibers and Cobalt Oxide Nanowires

Al2O3 ve TiO2 nanopartikül katkısının cam elyaf takviyeli kompozitlerin mekanik özelliklerine ve burkulma davranışına etkisi

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