PDMS/single-walled carbon nanotube composite for proton radiation shielding in space applications

被引：52

作者：

Li, Z. ^{[1
,2
]}

Nambiar, S. ^{[1
,2
]}

Zheng, W. ^{[3
]}

Yeow, J. T. W. ^{[1
,2
]}

机构：

[1] Univ Waterloo, Dept Syst Design Engn, Waterloo, ON N2L 3G1, Canada

[2] Univ Waterloo, Waterloo Inst Nanotechnol, Waterloo, ON N2L 3G1, Canada

[3] Canadian Space Agcy, Space Sci & Technol, St Hubert, PQ J3Y 8Y9, Canada

来源：

MATERIALS LETTERS | 2013年 / 108卷

关键词：

Proton radiation shielding; Space radiation; Single-walled carbon nanotubes; Polydimethylsiloxane; Nanocomposite; POLYMER; IRRADIATION; PARTICLES; EXPOSURE; ENERGY;

D O I：

10.1016/j.matlet.2013.06.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study explores the radiation characteristics of carbon nanotubes-based polymer composite for high-energy proton shielding applications in aerospace industry. Nanocomposites of single-walled carbon nanotubes (SWCNTs) dispersed in polydimethylsiloxane (PDMS) were tested under monoenergetic proton beams. The stopping ranges of the nanocomposite (PDMS/SWCNT) were calculated and compared to those of the pure PDMS and aluminum (Al). The results showed that the PDMS/SWCNT nanocomposite provided weight advantage compared to the control (PDMS) at energies higher than 53.59 MeV. At 105 MeV, PDMS/SWCNT was 3.11% and 20.91% lighter than pure PDMS and Al respectively. In order to evaluate the effects of the SWCNTs upon exposure to high-energy protons, the stopping ranges for PDMS/SWCNT and pure PDMS were simulated and the results were compared to those obtained from the experiments. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：79 / 83

页数：5

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