Effects of Low Level Uva Irradiation on Properties of Sw280/3218 Composites
The scheme of irradiation on the SW280/3218 composites was determined after the investigation of the ultraviolet A (UVA) of the sunlight indoor and fluorescent lamp.After UVA irradiation at the irradiance of 200μW· cm- 2,mechanical properties and the surface properties of GF reinforced epoxy resin composites were studied by XPS,contact angle,nano-indentation,and AFM respectively.The results show that there are no obvious changes of the mechanical properties (interlaminar shear strength,bending strength and tensile strength) of SW280/3218 composites after 4/7/10days UVA irradiation.UVA irradiation has hardly any influence on the mechanical properties of SW280/3218 composites during the manufacture and storing indoor.The surface of SW280/3218 composites is oxidized after 4/7/10days UVA irradiation;the value of O/C and the content of -C-O- as well as the surface roughness increased.Surface properties of SW280/3218 composites were influenced by UVA irradiation,which may influence the subsequent processing.
Uva Glass Fiber Epoxy Resin Mechanical Properties Surface Properties
Shen Xionggang Zhao Yan Xu Yanjie Tang Bingjie Duan Yuexin Hong Xuhui Liu Weiping
School of Materials Science and Engineering,Beihang University,Beijing 100191,China Beijing Institute of Aeronautical Materials,Beijing 100095,China Shanghai Aircraft Manufacturing Co.,Ltd,Shanghai 200436,China
国际会议
The tenth China-Japan joint conference on Composite Materials (第10届中日复合材料学术会议(CJJCC-10))
成都
英文
141-145
2012-09-08（万方平台首次上网日期，不代表论文的发表时间）