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Sustainable Polymer Composites and Nanocomposites

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Materials".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4568

Special Issue Editors


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Guest Editor
1. Department of Nuclear Power Plants and Renewable Energy Sources, Ural Power institute, Ural Federal University, Yekaterinburg 620002, Russia
2. Nuclear Materials Authority, Cairo 11936, Egypt
Interests: ionizing radiation; radiation shielding materials; heavy metal oxide glasses; Monte Carlo simulation; nanomaterials for radiation protection; ceramics for radiation shielding applications; radiation shielding for medical applications

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Guest Editor
Department of experimental Physics, Institute of Physics and technology, Ural Federal University, Yekaterinburg 620002, Russia
Interests: environmental radioactivity, ionizing radiation; radiation shielding materials; heavy metal oxide glasses; Monte Carlo simulation; nanomaterials for radiation protection; ceramics for radiation shielding applications; radiation shielding for medical applications

Special Issue Information

Dear Colleagues,

Polymers play an increasingly important role in many new applications, be they nuclear, medical, or ecological (degradation of waste pollutants). The incorporation of a filler into a micro size range within the composite material leads to the enhancement of composite properties. Chemical and intermolecular forces render the bond between the polymer and the matrix. However, on the nanoscale, a nanofiller can be dispersed within the polymer matrix. Thus, the molecular interactions between the matrix and the filler are improved via chemical bonding, leading to further enhancements in the mechanical and physical properties, as well as the ionizing radiation shielding properties of the new polymer nanocomposites. Nanofillers are characterized by a high surface-to-volume ratio that affects the alteration of the macromolecular state around the nanoparticles. The addition of nanofillers enhances the characteristics of the polymer by increasing elastic stiffness, strength, heat resistance, and barrier resistance and decreasing gas permeability and flammability.

The aim of the current issue is to publish high quality articles. We will accept either review articles or articles presenting new materials in more depth. The processed articles in the present issue should focus on novel polymetric and rubber materials used for different fields of application such as radiation protection, medicine, science, the nuclear industry, electronics, and waste treatment.

Submissions covering the following topics are welcome:

  • Synthesis of new monomers and polymers;
  • Polymer various applications;
  • Nanomaterials;
  • Optical properties;
  • Polymer characterization;
  • Mechanical properties;
  • Films and coatings;
  • Shielding composites for gamma/X-rays/neutrons;
  • Heat resistance.

Dr. Karem Mahmoud
Dr. Mohamed Hanfi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • synthesis of new monomers and polymers
  • polymer various applications
  • nano materials
  • optical properties
  • characterization
  • mechanical properties
  • films and coatings
  • shielding composites for gamma/X-rays/neutrons
  • heat resistance
  • heavy metal oxide
  • environmental radioactivity

Published Papers (2 papers)

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Research

15 pages, 3703 KiB  
Article
Radiation Shielding Enhancement of Polyester Adding Artificial Marble Materials and WO3 Nanoparticles
by Hanaa. M. Hemily, I. H. Saleh, Z. F. Ghataas, A. A. Abdel-Halim, R. Hisam, A. Z. Shah, M. I. Sayyed, S. Yasmin and M. Elsafi
Sustainability 2022, 14(20), 13355; https://doi.org/10.3390/su142013355 - 17 Oct 2022
Cited by 16 | Viewed by 1744
Abstract
The radiation shielding abilities of waste marbles with different concentrations of WO3 (tungsten oxide) nanoparticles were investigated. Four marbles were prepared with 0, 0.05, 0.1, and 0.2 WO3 nanoparticles. The study aims to investigate the effect of the WO3 concentration, [...] Read more.
The radiation shielding abilities of waste marbles with different concentrations of WO3 (tungsten oxide) nanoparticles were investigated. Four marbles were prepared with 0, 0.05, 0.1, and 0.2 WO3 nanoparticles. The study aims to investigate the effect of the WO3 concentration, the density, and the particle size of the waste marble samples. The linear attenuation coefficient (LAC) of the S1 sample, the sample with no WO3, was determined theoretically and experimentally, and the results demonstrated that they were close enough together to adequately determine the LAC of the other samples. Additionally, the samples with nano-WO3, rather than micro-WO3, were found to have a greater LAC, showing that decreasing the particle size of the sample improves their shielding ability. Samples with greater WO3 content also had higher LAC values. The LAC of the marbles was also evaluated at a wide energy range (0.015–15 MeV) to examine the shielding properties of the samples for a wide range of applications, and an inverse trend between LAC and energy was observed. The radiation protection efficiency (RPE) of the marbles demonstrated that the marbles absorb almost all incoming photons at low energies. As energy increases, the efficiency of the samples naturally drops, as the photons are able to penetrate through them with greater ease. High energy dependence was found when calculating the half-value layers (HVL) of the samples. When comparing the LAC and mean free paths (MFP) of the marbles, an inverse relationship was observed. Furthermore, the samples with nano-WO3 had a smaller MFP than those with micro-WO3, meaning that decreasing the particle size of the samples improves their radiation shielding ability. The Zeff of the micro-WO3 samples was also determined and the values followed three distinctive trends depending on the energy range of the incoming photons. Full article
(This article belongs to the Special Issue Sustainable Polymer Composites and Nanocomposites)
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20 pages, 5853 KiB  
Article
Sustainable Remedy Waste to Generate SiO2 Functionalized on Graphene Oxide for Removal of U(VI) Ions
by Mohamed A. Hassanin, Sameh H. Negm, Mohamed A. Youssef, Ahmed K. Sakr, Hamed I. Mira, Tarek F. Mohammaden, Jamelah S. Al-Otaibi, Mohamed Y. Hanfi, M. I. Sayyed and Mohamed F. Cheira
Sustainability 2022, 14(5), 2699; https://doi.org/10.3390/su14052699 - 25 Feb 2022
Cited by 18 | Viewed by 2184
Abstract
The Hummer process is applied to generate graphene oxide from carbon stocks’ discharged Zn-C batteries waste. SiO2 is produced from rice husks through the wet process. Subsequently, SiO2 reacted with graphene oxide to form silica/graphene oxide (SiO2/GO) as a [...] Read more.
The Hummer process is applied to generate graphene oxide from carbon stocks’ discharged Zn-C batteries waste. SiO2 is produced from rice husks through the wet process. Subsequently, SiO2 reacted with graphene oxide to form silica/graphene oxide (SiO2/GO) as a sorbent material. XRD, BET, SEM, EDX, and FTIR were employed to characterize SiO2/GO. Factors affecting U(VI) sorption on SiO2/GO, including pH, sorption time, a dosage of SiO2/GO, U(VI) ions’ concentration, and temperature, were considered. The experimental data consequences indicated that the uptake capacity of SiO2/GO towards U(VI) is 145.0 mg/g at a pH value of 4.0. The kinetic calculations match the pseudo second-order model quite well. Moreover, the sorption isotherm is consistent with the Langmuir model. The sorption procedures occur spontaneously and randomly, as well as exothermically. Moreover, SiO2/GO has essentially regenerated with a 0.8 M H2SO4 and 1:50 S:L phase ratio after 60 min of agitation time. Lastly, the sorption and elution were employed in seven cycles to check the persistent usage of SiO2/GO. Full article
(This article belongs to the Special Issue Sustainable Polymer Composites and Nanocomposites)
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