| 典型航空有机玻璃在实验室加速条件下的老化规律 |
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| 引用本文： | 刘明,高蒙,张兴华,骆晨,孙志华,汤智慧.典型航空有机玻璃在实验室加速条件下的老化规律[J].失效分析与预防,2015,10(6):346-349,354. |
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| 作者姓名： | 刘明 高蒙 张兴华 骆晨 孙志华 汤智慧 |
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| 作者单位： | 北京航空材料研究院航空材料先进腐蚀与防护航空科技重点实验室, 北京 100095 |
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| 摘 要： | 针对典型航空有机玻璃YB-DM-11开展热空气老化、紫外老化、盐雾试验等,通过分析拉伸性能、透光率、抗应力银纹强度等随试验时间的变化,总结典型航空有机玻璃在实验室加速条件下的老化规律。结果表明:YB-DM-11的拉伸强度在95℃热空气老化和紫外老化条件下出现了总体上升趋势,而在盐雾试验条件下出现了下降,影响的拉伸强度加速老化条件的显著性排序为:盐雾试验,紫外老化,95℃热空气老化;YB-DM-11的抗应力银纹强度在95℃热空气老化条件和盐雾试验条件下,其抗应力银纹强度随老化时间呈现出显著上升趋势,而在紫外老化条件下,其抗应力银纹强度随老化时间在总体上升趋势中有一段下降,影响的拉伸强度加速老化条件的显著性排序为:紫外老化,盐雾试验,95℃热空气老化;透光率受实验室加速老化条件影响不大。
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| 关 键 词： | 航空有机玻璃 老化 加速试验 |
| 收稿时间： | 2015-09-05 |
Aging Behavior of Aeronautical Perspex in Accelerated Laboratory Conditions |
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| LIU Ming,GAO Meng,ZHANG Xing-hua,LUO Chen,SUN Zhi-hua,TANG Zhi-hui.Aging Behavior of Aeronautical Perspex in Accelerated Laboratory Conditions[J].Failure Analysis and Prevention,2015,10(6):346-349,354. |
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| Authors: | LIU Ming GAO Meng ZHANG Xing-hua LUO Chen SUN Zhi-hua TANG Zhi-hui |
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| Abstract: | Air aging, ultraviolet(UV) aging and salt spray tests were carried out on aeronautical perspex YB-DM-11. Tensile strength, light transmittance and silver mark resistance were used to study the aging rule of the aeronautical perspex in accelerated laboratory conditions. The results show that tensile strength showed an upward trend in the conditions of 95℃ air aging and UV aging, but it showed a downward trend in salt spray. The influence extent of accelerated conditions on tensile strength is in the following order:salt spray, UV aging and 95℃ air aging. The silver mark resistance showed an upward trend in conditions of 95℃ air aging and salt spray, but it showed a downward trend in UV aging. The influence extent of accelerated conditions on silver mark resistance is in the following order that UV aging, salt spray and 95℃ air aging. The accelerated conditions had no significant influence on light transmittance. |
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