Preparation and experimental estimation of radiation shielding properties of novel epoxy reinforced with Sb2O3 and PbO

IF 3.2 3区化学 Q2 POLYMER SCIENCE

e-Polymers Pub Date : 2023-01-01 DOI:10.1515/epoly-2023-0019

A. Almuqrin, Heba Jamal Alasali, M. I. Sayyed, K. Mahmoud

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引用次数: 2

Abstract

Abstract The present work aims to fabricate new inexpensive epoxy-based composites with a concentration described by the formula (90 − x)epoxy + 10Sb2O3 + xPbO, where x = 5, 10, 15, and 20 wt%. The impacts of the substitution of epoxy by PbO on the composite density and radiation shielding properties of the fabricated composites were studied. The density of the fabricated composites varied between 1.30 and 1.49 g·cm−3, enriching the PbO concentration. Utilizing the narrow beam transmission method, the linear attenuation coefficient (LAC) of the fabricated composites was measured using the NaI (Tl) detector as well as radioactive sources Am-241 and Cs-137. The LAC increased by 84% and 18% at gamma-ray energy of 0.059 and 0.662 MeV, when the PbO concentration raised between 5 and 20 wt%, respectively. Then the transmission rate and half-value layer of the fabricated composites were reduced by raising the PbO concentration. Therefore, the fabricated composite has good shielding properties in the low gamma-ray energy interval to be suitable for medical applications and low radioactive waste container constructions.

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新型Sb2O3和PbO增强环氧树脂的制备及其辐射屏蔽性能的实验评价

摘要:本研究旨在制备新型廉价环氧基复合材料，其浓度为(90−x)环氧树脂+ 10Sb2O3 + xPbO，其中x = 5、10、15和20 wt%。研究了PbO取代环氧树脂对制备的复合材料密度和辐射屏蔽性能的影响。制备的复合材料的密度在1.30 ~ 1.49 g·cm−3之间，使PbO浓度增加。采用窄束透射法，利用NaI (Tl)探测器和放射源Am-241和Cs-137测量了复合材料的线性衰减系数(LAC)。在伽马射线能量为0.059和0.662 MeV时，当PbO浓度分别升高5%至20%时，LAC分别增加了84%和18%。然后通过提高PbO浓度降低复合材料的透射率和半值层。因此，制备的复合材料在低伽马射线能量区间具有良好的屏蔽性能，适用于医疗应用和低放射性废物容器的建造。

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来源期刊

e-Polymers 化学-高分子科学

CiteScore

5.90

自引率

10.80%

发文量

审稿时长

6.4 months

期刊介绍： e-Polymers is a strictly peer-reviewed scientific journal. The aim of e-Polymers is to publish pure and applied polymer-science-related original research articles, reviews, and feature articles. It includes synthetic methodologies, characterization, and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are welcome. The present Editors-in-Chief would like to thank the authors, the reviewers, the editorial staff, the advisory board, and the supporting organization that made e-Polymers a successful and sustainable scientific journal of the polymer community. The Editors of e-Polymers feel very much engaged to provide best publishing services at the highest possible level.