玻纤增强尼龙66人工加速光老化性能的研究  

Study on the property of glass fiber reinforced nylon 66 composite in accelerated photo-aging

作　　者：王荣华[1] 王小燕[2] 李晖[1] 李倩倩[1] 孙岩[1] 刘亚平[1] 王登霞[1] 谢可勇[1] 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031 [2]西北大学,西安710127

出　　处：《化工新型材料》2015年第4期129-131,135,共4页New Chemical Materials

基　　金：国防军工环境试验与观测重点项目(H102011B002-4;H092013A003)

摘　　要：采用扫描电子显微镜、傅里叶变化红外光谱和X射线光电子能谱仪对人工光加速老化过程中玻纤增强尼龙66复合材料的光老化性能进行了初步分析研究,结合材料力学性能变化规律,分析认为光加速老化过程中材料发生了自由基光氧化反应,导致分子链结构中C-C、C-N等化学键的断裂,材料表面出现了龟裂、粉化以及纤维的剥离和脱落等光老化现象,材料内部由于受光照影响较小,并未出现明显的光老化现象。Abstract Mechanical properties and microstrueture of glass fiber reinforced nylon 66 composite in the accelerated photo-aging were studied by scanning electron microscope （SEM）, fourier transform infrared spectroscopy （FIRT）, X-ray photoelectron spectroscopy（XPS）. The results showed that photo-aging phenomenon appeared because of the radical pho- tooxidation reaction, such as chap,pulverization and the fibers also stripped on the surface, which may due to the fracture of C-C and C-N bonds . While, there didn＇t obvious changes in the interior as the photo-aging effect was so slight.

关 键 词：玻纤增强尼龙66 加速光老化 光氧化 机理 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]