Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane
In this study, fast-curing shielding materials were prepared with a two-component polyurethane matrix and a filler material of PbO through a one-step, laboratory-scale method. With an increase in the filler content, viscosity increased. However, the two components showed a small difference. Curing t...
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doaj-f892ce07bd3946c581ce3babea3347122020-11-24T23:19:40ZengElsevierNuclear Engineering and Technology1738-57332016-12-014861396140310.1016/j.net.2016.06.008Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on PolyurethaneMinxuan Ni0Xiaobin Tang1Hao Chai2Yun Zhang3Tuo Chen4Da Chen5Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaDepartment of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaDepartment of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaDepartment of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaDepartment of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaDepartment of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaIn this study, fast-curing shielding materials were prepared with a two-component polyurethane matrix and a filler material of PbO through a one-step, laboratory-scale method. With an increase in the filler content, viscosity increased. However, the two components showed a small difference. Curing time decreased as the filler content increased. The minimum tack-free time of 27 s was obtained at a filler content of 70 wt%. Tensile strength and compressive strength initially increased and then decreased as the filler content increased. Even when the filler content reached 60 wt%, mechanical properties were still greater than those of the matrix. Cohesional strength decreased as the filler content increased. However, cohesional strength was still greater than 100 kPa at a filler content of 60 wt%. The γ-ray-shielding properties increased with the increase in the filler content, and composite thickness could be increased to improve the shielding performance when the energy of γ-rays was high. When the filler content was 60 wt%, the composite showed excellent comprehensive properties.http://www.sciencedirect.com/science/article/pii/S173857331630095XCohesional StrengthFast CuringΓ-Ray-Shielding PropertyIrradiation-Shielding CompositeMechanical PropertyPolyurethane |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Minxuan Ni Xiaobin Tang Hao Chai Yun Zhang Tuo Chen Da Chen |
spellingShingle |
Minxuan Ni Xiaobin Tang Hao Chai Yun Zhang Tuo Chen Da Chen Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane Nuclear Engineering and Technology Cohesional Strength Fast Curing Γ-Ray-Shielding Property Irradiation-Shielding Composite Mechanical Property Polyurethane |
author_facet |
Minxuan Ni Xiaobin Tang Hao Chai Yun Zhang Tuo Chen Da Chen |
author_sort |
Minxuan Ni |
title |
Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane |
title_short |
Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane |
title_full |
Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane |
title_fullStr |
Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane |
title_full_unstemmed |
Preparation and Properties of the Fast-Curing γ-Ray-Shielding Materials Based on Polyurethane |
title_sort |
preparation and properties of the fast-curing γ-ray-shielding materials based on polyurethane |
publisher |
Elsevier |
series |
Nuclear Engineering and Technology |
issn |
1738-5733 |
publishDate |
2016-12-01 |
description |
In this study, fast-curing shielding materials were prepared with a two-component polyurethane matrix and a filler material of PbO through a one-step, laboratory-scale method. With an increase in the filler content, viscosity increased. However, the two components showed a small difference. Curing time decreased as the filler content increased. The minimum tack-free time of 27 s was obtained at a filler content of 70 wt%. Tensile strength and compressive strength initially increased and then decreased as the filler content increased. Even when the filler content reached 60 wt%, mechanical properties were still greater than those of the matrix. Cohesional strength decreased as the filler content increased. However, cohesional strength was still greater than 100 kPa at a filler content of 60 wt%. The γ-ray-shielding properties increased with the increase in the filler content, and composite thickness could be increased to improve the shielding performance when the energy of γ-rays was high. When the filler content was 60 wt%, the composite showed excellent comprehensive properties. |
topic |
Cohesional Strength Fast Curing Γ-Ray-Shielding Property Irradiation-Shielding Composite Mechanical Property Polyurethane |
url |
http://www.sciencedirect.com/science/article/pii/S173857331630095X |
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