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。
In order to study the effect of discontinuous hygrothermal on properties of T700/TR1219 B 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/TR1219 B composite follow the Fick law. Tensile strength and elastic modulus of specimens and hardness and elastic modulus of resin increase firstly and then decrease.
作者
姚佳伟
贾紫娇
牛一凡
YAO Jiawei JIA Zijiao NIU Yifan(Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 30030)
出处
《宇航材料工艺》
CSCD
北大核心
2017年第5期21-24,共4页
Aerospace Materials & Technology
基金
中央高校基本科研业务费(3122015Z004)
