scholarly journals A comparative study between nano-cadmium oxide and lead oxide reinforced in high density polyethylene as gamma rays shielding composites

2020 ◽  
Vol 35 (1) ◽  
pp. 42-49
Author(s):  
Gharam Alharshan ◽  
Dalal Aloraini ◽  
Mohamed Elzaher ◽  
Mohamed Badawi ◽  
Mahmoud Alabsy ◽  
...  
Keyword(s):  
Comparative Study ◽  
Energy Region ◽  
High Density Polyethylene ◽  
Lead Oxide ◽  
Cadmium Oxide ◽  
Weight Fraction ◽  
Radiation Shielding ◽  
High Density ◽  
Attenuation Coefficients ◽  
Oxide Composite

In this work, polymer composites of high density polyethylene reinforced by micro-sized and nanosized cadmium oxide, lead oxide, and a mixture of both with filler weight fraction of 30% were prepared by compression molding technique and characterized by scanning electron microscope. This investigation aims to present a comparative study between cadmium oxide and lead oxide according to their sizes as fillers in high density polyethylene polymeric matrix for gamma-radiation shielding applications. The mass and linear attenuation coefficients of the investigated composites were measured as a function of g-ray energies ranging from 59.53 keV to 1408.01 keV using standard radioactive point sources (241Am, 133Ba, 137Cs, 60Co, and 152Eu). The measurements were made with a narrow beam geometry setup using a well calibrated hyper pure germanium cylindrical detector. The theoretical values of the mass attenuation coefficients were evaluated using the XCOM program database. The experimental results demonstrated that, according to the filler size, cadmium oxide composite is better as a gamma absorber in the energy region less than 81 keV, while lead oxide composite is better in the energy region greater than 81 keV. Moreover, for the same chemical structure and weight fraction of the composite, nano fillers show better attenuation performance than micro fillers in high density polyethylene based radiation shielding material.

scholarly journals Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene Composites

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ahmed M. El-Khatib ◽  
Mahmoud I. Abbas ◽  
Mohamed Abd Elzaher ◽  
Mohamed S. Badawi ◽  
Mahmoud T. Alabsy ◽  
...  
Keyword(s):  
Particle Size ◽  
High Density Polyethylene ◽  
Cadmium Oxide ◽  
Radiation Shielding ◽  
Point Sources ◽  
High Density ◽  
Attenuation Coefficients ◽  
Effect Of Particle Size ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Abstract In the present work, high density polyethylene (HDPE) matrix mixed with micro-sized and nano-sized Cadmium oxide (CdO) particles of different concentrations were prepared by compression molding technique. The aim of the study is to investigate the effect of particle size and weight percentage of CdO particles on the gamma radiation shielding ability of CdO/HDPE composites. The mass attenuation coefficients of pure HDPE, micro-CdO/HDPE and nano-CdO/HDPE composites were evaluated at photon energies ranging from 59.53 keV to 1408.01 keV using standard radioactive point sources [241Am, 133Ba, 137Cs, 60Co and 152Eu]. Adding micro and nano CdO particles to the HDPE matrix clearly increases the mass attenuation coefficients of the composites and the improvement is more significant at low γ-ray energies. The effect of particle size of CdO filler has an important role on the shielding ability of the composite. The experimental results reveal that, the composites filled with nano-CdO have better γ-radiation shielding ability compared to that filled with micro-CdO at the same weight fraction. A relative increase rate of about 16% is obtained with nano-CdO content of 40 wt% at 59.53 keV, which attributed to the higher probability of interaction between γ-rays and nanoparticles. From this study, it can be concluded that nano-CdO has a good performance shielding characteristic than micro-CdO in HDPE based radiation shielding material.

scholarly journals Erratum

2020 ◽  
Vol 35 (4) ◽  
pp. 386-386
Author(s):  
E Editorial
Keyword(s):  
Comparative Study ◽  
Radiation Protection ◽  
Gamma Rays ◽  
High Density Polyethylene ◽  
Lead Oxide ◽  
Cadmium Oxide ◽  
High Density ◽  
Nuclear Technology ◽  
Shielding Composites

In the article A COMPARATIVE STUDY BETWEEN NANO-CADMIUM OXIDE AND LEAD OXIDE REINFORCED IN HIGH DENSITY POLYETHYLENE AS GAMMA RAYS SHIELDING COMPOSITES by Gharam A. ALHARSHAN, Dalal A. ALORAINI, Mohamed Abd ELZAHER, Mohamed S. BADAWI, Mahmoud T. ALABSY, Mahmoud I. ABBAS, and Ahmed M. EL-KHATIB published in the journal Nuclear Technology & Radiation Protection, 35 (2020), 1, pp. 42-49, the authors omitted the acknowledgement.

Recycled high-density polyethylene plastics added with lead oxide nanoparticles as sustainable radiation shielding materials

2018 ◽  
Vol 176 ◽  
pp. 276-287 ◽  
Author(s):  
Mohamed E. Mahmoud ◽  
Ahmed M. El-Khatib ◽  
Mohamed S. Badawi ◽  
Amal R. Rashad ◽  
Rehab M. El-Sharkawy ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Lead Oxide ◽  
Radiation Shielding ◽  
High Density ◽  
Oxide Nanoparticles

scholarly journals Author Correction: Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene Composites

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ahmed M. El-Khatib ◽  
Mahmoud I. Abbas ◽  
Mohamed Abd Elzaher ◽  
Mohamed S. Badawi ◽  
Mahmoud T. Alabsy ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Cadmium Oxide ◽  
High Density ◽  
Attenuation Coefficients ◽  
Polyethylene Composites

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

scholarly journals Fabrication of Novel (Biopolymer Blend-Lead Oxide Nanoparticles) Nanocomposites: Structural and Optical Properties for Low-Cost Nuclear Radiation Shielding

2019 ◽  
Vol 64 (2) ◽  
pp. 157 ◽  
Author(s):  
A. Hashim ◽  
K.H.H. Al-Attiyah ◽  
S. F. Obaid
Keyword(s):  
Optical Properties ◽  
Lead Oxide ◽  
Optical Constants ◽  
Low Cost ◽  
Radiation Shielding ◽  
Nuclear Radiation ◽  
Oxide Nanoparticles ◽  
Energy Band Gap ◽  
Structural And Optical Properties ◽  
Attenuation Coefficients

Low-cost polymer nanocomposites prepared for the nuclear radiation shielding have highly linear attenuation coefficients, light weight, and elastic, good mechanical, optical, and dielectric properties. The carboxymethyl cellulose (CMC)–polyvinyl pyrrolidone (PVP) polymeric blend is prepared with concentrations: 60 wt.% CMC and 40 wt.% PVP. The lead oxide nanoparticles are added to the CMC–PVP blend with different concentrations: 0, 2, 4, 6, and 8 wt.%. The structural and optical properties of (CMC–PVP–PbO2) nanocomposites are studied. The results show that the absorbance of the (CMC–PVP) blend increases and the energy band gap decreases, as the concentration of PbO2 nanoparticles increases. The optical constants of the (CMC–PVP) blend increase with the concentration of lead oxide nanoparticles. The (CMC–PVP–PbO2) nanocomposites have highly linear attenuation coefficients for gamma radiation.

Mechanical, thermal, and viscoelastic investigations on expanded perlite–filled high-density polyethylene composite

2018 ◽  
Vol 50 (8) ◽  
pp. 747-761 ◽  
Author(s):  
Metehan Atagür ◽  
Mehmet Sarikanat ◽  
Tuğçe Uysalman ◽  
Ozan Polat ◽  
İffet Yakar Elbeyli ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Loss Modulus ◽  
Value Added ◽  
Weight Fraction ◽  
Mechanical Tests ◽  
High Density ◽  
Morphological Properties ◽  
X Ray Diffraction ◽  
Polyethylene Composite ◽  
Value Added Products

Perlite is a glassy amorphous volcanic rock and generally used in construction industries. Possible uses of perlite powder in polymeric composites allow producing value-added products. In this study, expanded Turkish perlite (TP) powder was characterized by particle size distribution and Brunauer–Emmett–Teller analysis. TP-filled high-density polyethylene (HDPE) composites were manufactured via thermokinetic mixer by adding various weight fractions of TP powder (5, 10, 20, and 30 wt%) into HDPE matrix. Produced composites were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, dynamic mechanic analysis, X-ray diffraction, and mechanical and thermal conductivity tests. From mechanical tests, it was observed that HDPE + 5% TP exhibited the greatest tensile strength. Flexural strength of the TP-filled HDPE composite was increased with the increasing TP content. Morphological properties of TP-filled HFPE composites were examined by scanning electron microscopy. As the weight fraction of TP was increased, storage modulus and loss modulus of the composites were increased. Moreover, the relaxation peak of HDPE was increased by the incorporation of TP into HDPE.

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