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http://dx.doi.org/10.5139/JKSAS.2016.44.9.769

Effect of Solar Radiation Aging on the Properties of Epoxy Polymers  

Lee, Dong-Geon (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Sang-Bong (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Kim, Myung-June (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Park, Jung-Sun (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Soo-Yong (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Kang, Tae-Yeob (Defence Systems Test Center, Agency for Defence Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.44, no.9, 2016 , pp. 769-774 More about this Journal
Abstract
Epoxy polymer exposed to solar radiation on long-term is required to a long-term environmental test in order to ensure the reliability of operation performance. In this paper, the solar aging experiment is performed for 7, 14, 28, 56, and 84 cycles, using solar simulator designed according to MIL-STD-810. After the aging experiment, measuring RGB values and using the CIE1976 color space, each RGB decreasing rates and total color shift are calculated. In addition, using a universal testing machine, mechnical properties according to ASTM-D638 are measured. As a result, by increasing solar aging period, total color shift is increased, and the tensile strength and elongation are decreased, but the elastic modulus and the poisson's ratio are slightly changed.
Keywords
Mechanical Property; Solar Radiation; Polymer; Solar Simulator;
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Times Cited By KSCI : 1  (Citation Analysis)
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