Study the of effect of micro and nanoCadmium Oxide on the hardness test of (epoxy-polyurethane) blend

Suhail, Ghasaq Talal; Anter, Faik Hammad; Al-Sarraj, Ziyad Shihab

doi:10.24996/ijs.2018.59.4b.8

ijs

2018

DOI: 10.24996/ijs.2018.59.4b.8

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Study the of effect of micro and nanoCadmium Oxide on the hardness test of (epoxy-polyurethane) blend

Ghasaq Talal Suhail

Faik Hammad Anter

Ziyad Shihab Al-Sarraj³

Abstract: This research includes using epoxy resin and polyurethane resin to form a blend (EP+PU) with different resin ratios (90-10)%, (80-20)%, (70-30)%, and (60-40)% to achieve best ratio for impact strength as a function of better toughness; then reinforced with micro and nano (CdO) with weight fraction (0.02, 0.04, 0.06, 0.08). Mechanical properties were studied including hardness before and after exposure to UV irradiation. Results showed that the composite (nano CdO+ blend) had better properties compared with (mi… Show more

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Cited by 2 publications

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Comparison Between Confined and Unconfined Laser Peening Effect on the Fatigue Life of Composite Materials

Khazraji

Mutasher

2020

eijs

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Mechanical Engineering Department/ University of Technology- Baghdad. Confinement layer is considered as the most important parameter during the laser shock peening (LSP) treatment. In this paper, its effect on the surface treatment effectivity of composite materials was investigated. The composite used in this research was fabricated using hand lay-up as a manufacturing process. The matrix material was built from unsaturated polyester resin and reinforced with 2.5% volume fraction of micro particles of aluminum powder. Fatigue test was conducted at room temperature with constant amplitude stress and a stress ratio of R =-1, before and after LSP treatment. LSP was applied with and without confinement layer at the same level of energy after the specimens were coated with a black paint. The results manifested that the laser peening without confinement layer increased the endurance limit by about 13.296% compared with the untreated state. Whereas using water as a confinement layer during treatment reduced the endurance strength by about 18.133% compared to the untreated state. Also, it was observed that the difference between confined and unconfined LSP effects on the endurance limit was about 31.429%.

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Comparison Between Confined and Unconfined Laser Peening Effect on the Fatigue Life of Composite Materials

Khazraji

Mutasher

2020

eijs

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Synthesis of Silver Nanoparticles Using L.Rosa Flowers Extracts: Thermodynamic and Kinetic Studies on the Inhibitoty Effects of Nanoparticles on Creatine Kinase Activity

Khalaf

Ahmed

Mathkor

et al. 2021

eijs

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The present work investigates the synthesis of silver nanoparticles (AgNPs) by a biological method using L.Rosa flower extract and silver nitrate as precursors. Optimum conditions of synthesis were studies, such as pH, temperature, concentration of extract, concentration of silver nitrate, and stability with time. Characterization of AgNPs was carried out using UV-visible Spectroscopy, Scanning Electron Microscopy, X-Ray Diffraction, Fourier Transform Infrared and Transmission Electron Microscopy. The biosynthesized AgNPs exhibited inhibitory effects on creatine kinase activity in the sera of patients with myocardial infarction, compared with control subjects. Thermodynamic and kinetic studies of creatine kinase were performed. Further studies on other biological activities were performed to exploit AgNPs full potential. In conclusions, the present study utilize a simple, cheap and environmentally green method to synthesize silver nanoparticles. This single step procedure is more suitable for large scale production as it is rapid and eliminates the elaborate processes employed in the other bio-based protocols (e.g. by using fungi and bacteria).

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Study the of effect of micro and nanoCadmium Oxide on the hardness test of (epoxy-polyurethane) blend

Cited by 2 publications

References 14 publications

Comparison Between Confined and Unconfined Laser Peening Effect on the Fatigue Life of Composite Materials

Comparison Between Confined and Unconfined Laser Peening Effect on the Fatigue Life of Composite Materials

Synthesis of Silver Nanoparticles Using L.Rosa Flowers Extracts: Thermodynamic and Kinetic Studies on the Inhibitoty Effects of Nanoparticles on Creatine Kinase Activity

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