高性能碳纤维表面分析及其力学性能研究

Surface Analysis of High Property Carbon Fibers and Study on Mechanical Properties

采用扫描电镜、红外光谱、X射线光电子能谱仪对T700,T800-12K,T800-6K,T1000纤维表面状态及纤维与树脂基体的粘结性进行分析,并进行150mm容器力学性能考核。结果表明,T700,T1000纤维表面光滑,T800-12K,T800-6K纤维表面有明显沟槽,T1000试验后表面出现沟槽,T700-T1000表面活性基团含量较高,T800-12K纤维最低。T700,T800-6K,T800-12K,T1000纤维在Φ150mm容器中强度转化率为89.7%,79.2%,79.1%,93.1%,分析认为纤维表面状态对其浸渍性有较大影响,改善浸润性是提高复合材料性能的关键因素之一。

The characterization on the surface of carbon fiber(T700\T800-6K\T800-12K\T1000) and the bonded interface of fiber/epoxy are analyzed by SEM,IR,XPS.The mechanical properties of 150mm pressure vessels are measured.The results show the surfaces of T700\T1000 are glossier,the surface of T800 has obvious groove,the surface of T1000 appeared groove after experience.XPS result shows that T700\T1000 have more active groups and T800 has less.The transfer rate of fiber strength with T700\T800-6k\T800-12k\T1000 in ...