| 非连续湿热作用对T700/TR1219B复合材料宏细观性能的影响 |
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| 引用本文： | 姚佳伟,贾紫娇,牛一凡.非连续湿热作用对T700/TR1219B复合材料宏细观性能的影响[J].宇航材料工艺,2017,47(5):21-24. |
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| 作者姓名： | 姚佳伟 贾紫娇 牛一凡 |
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| 作者单位： | 中国民航大学中欧航空工程师学院, 天津 300300,中国民航大学中欧航空工程师学院, 天津 300300,中国民航大学中欧航空工程师学院, 天津 300300 |
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| 基金项目： | 中央高校基本科研业务费（3122015Z004）。 |
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| 摘 要： | 为研究非连续湿热作用对碳纤维环氧树脂基复合材料性能的影响,对T700/TR1219B试样进行了吸湿-脱湿试验,测试了其拉神性能,并采用SEM观察试样侧面;通过原子力显微镜的峰值力纳米力学成像技术(PF-QNM)对树脂进行纳米压痕测试。结果表明:吸湿率从0变化到1.2%,T700/TR1219B复合材料的一次及二次吸湿行为均满足Fick定律;经吸湿-脱湿-再吸湿,试样的拉伸强度、弹性模量及树脂的硬度及弹性模量均呈现先上升后下降的变化趋势。
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| 关 键 词： | T700/TR1219B复合材料 非连续湿热 吸湿-脱湿 峰值力纳米力学成像技术 硬度 弹性模量 |
| 收稿时间： | 2017/2/27 0:00:00 |
Effect of Discontinuous Hygrothermal on Macroscopic and Microscopic Properties of T700/TR1219B Composites |
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| YAO Jiawei,JIA Zijiao and NIU Yifan.Effect of Discontinuous Hygrothermal on Macroscopic and Microscopic Properties of T700/TR1219B Composites[J].Aerospace Materials & Technology,2017,47(5):21-24. |
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| Authors: | YAO Jiawei JIA Zijiao and NIU Yifan |
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| Institution: | Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300,Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300 and Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300 |
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| Abstract: | In order to study the effect of discontinuous hygrothermal on properties of T700/TR1219B composite, the specimens were treated with discontinuous hygrothermal treatment. The tensile test was carried out and SEM was used to observe the lateral morphology. The nano-indentation test was conducted by peak force quantitative nano-mechanics technique (PF-QNM) of atomic force microscope (AFM) to analysis the discontinuous hygrothermal effect on properties of resin. The results show that when the rate of moisture absorption varies from 0% to 1.2%, the first time and the second time moisture absorption of T700/TR1219B composite follow the Fick law. Tensile strength and elastic modulus of specimens and hardness and elastic modulus of resin increase firstly and then decrease. |
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| Keywords: | T700/TR1219B composite Discontinuous hygrothermal Moisture absorption and desorption PF-QNE Hardness Elastic modulus |
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