| 氟橡胶密封材料热氧老化试验与寿命评估 |
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| 引用本文： | 张晓军,常新龙,陈顺祥,华明军. 氟橡胶密封材料热氧老化试验与寿命评估[J]. 装备环境工程, 2012, 9(4): 35-38 |
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| 作者姓名： | 张晓军 常新龙 陈顺祥 华明军 |
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| 作者单位： | 第二炮兵工程大学,西安710025 |
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| 基金项目： | 武器装备预研项目（41328136032） |
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| 摘 要： | 对氟橡胶密封材料进行了热氧加速老化试验,对老化试验前后材料压缩永久变形量与红外光谱进行了分析,结果表明,老化引起材料内部的分子结构变化。建立了该材料在贮存温度下的压缩永久变形与贮存时间的老化动力学方程,预测了25℃下氟橡胶密封材料的贮存寿命,结果表明,氟橡胶在热氧条件下,失效机理为分子断裂和交联;非正常老化因素引起的变形对氟橡胶密封圈的性能影响很大;氟橡胶密封件在25℃下的贮存寿命为13.8 a。
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| 关 键 词： | 氟橡胶 密封材料 加速老化 贮存寿命 |
| 收稿时间： | 2012-03-07 |
| 修稿时间： | 2012-08-15 |
Thermal Oxidation Aging Test and Life Assessment of Fluorine Rubber Sealing Materials |
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| ZHANG Xiao-jun,CHANG Xin-long,CHEN Shun-xiang and HUA Ming-jun. Thermal Oxidation Aging Test and Life Assessment of Fluorine Rubber Sealing Materials[J]. Equipment Environmental Engineering, 2012, 9(4): 35-38 |
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| Authors: | ZHANG Xiao-jun CHANG Xin-long CHEN Shun-xiang HUA Ming-jun |
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| Affiliation: | (The Second Artillery Engineering University, Xi＇ an 710025, China) |
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| Abstract: | The thermal oxidation aging tests of fluorine rubber sealing materials were carried, and by measuring compression permanent deformation and investigating infrared spectrum before and after aging test, molecular structure changes inside the material was analyzed. Aging dynamics equation considering the material compression performance change with the storage time was established, and the storage life of fluorine rubber sealing materials at 25 ~C was predicted. The results showed that fluorine rubber failure mechanism in conditions of thermal oxidation, is molecular fracture and cross linking; deformation caused by abnormal aging factors have significant influence on the performance of rubber ring; the storage life of fluorine rubber sealing parts at 25 ℃ is 13.8 years. |
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| Keywords: | fluorine rubber sealing material accelerated aging storage life |
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