摘要
通过微波固化技术针对碳纤维/环氧树脂复合材料进行试验,采用力学性能测试、红外光谱分析、电镜扫描、CT扫描对热固化与微波固化试样的力学性能、微细观形态做了比较分析。试验结果表明,基于温度平台监控、功率不断增加的微波固化反应速率显著提高,周期也明显缩短了大约60%;基于力学性能角度,微波固化与热固化试样的拉伸强度与层剪强度大体持平,但是力学性能分散度相对偏低,离散系数较小,碳纤维表层带有大量树脂基体;基于电镜与CT扫描分析,微波固化可更有效控制试样孔隙率,以确保试样质量。
The carbon fiber/epoxy resin composites were tested by microwave curing technology.The mechanical properties and micromorphology of thermal curing and microwave cured samples were compared and analyzed by means of mechanical properties test,infrared spectrum analysis,electron microscope scanning and CT scanning.The experimental results show that the microwave curing reaction rate with increasing power is significantly increased and the period is shortened by about 60% based on temperature platform monitoring.Based on the mechanical properties,the tensile strength and laminar shear strength of microwave curing and heat curing samples are about the same,but the dispersion of mechanical properties is relatively low,the dispersion coefficient is small,and there are a large number of resin matrix on the surface of carbon fiber.Based on electron microscope and CT scanning analysis,microwave curing can control the porosity of the sample more effectively to ensure the quality of the sample.
作者
何栋
唐婷
HE Dong;TANG Ting(Xi'an Aeronautical Po1ytechnic Institute,Xi'an Shaanxi 710089,China)
出处
《粘接》
CAS
2019年第11期67-70,共4页
Adhesion
关键词
微波固化技术
碳纤维
环氧树脂
复合材料
microwave curing technology
carbon fibre
epoxy resin
composite
