【作者】 杨德安； 许晓秋； 蒋杏兵； 徐廷献；

【Author】 Yang De’an XuXiaoqiu Jiang xingbing XuTingxian (School of Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China)

【机构】 天津大学材料科学与工程学院；

【摘要】 在氧化处理后的碳纤维（CF）表面涂敷不同的偶联剂,石英粉用KH-550和脱膜剂处理,然后在双辊混料机上与BMI树脂熔融混炼,采用模压工艺制备CF/SiO₂/BMI复合材料试样,对其抗弯强度和吸水率进行测试。并且,用XPS分析了氧化前后碳纤维表面的成分和官能团。讨论了碳纤维表面处理对复合材料弯曲强度的影响。更多还原

【Abstract】 The carbon fiber was desized in air at 600℃, and then was treated by coupling agents. The SiO2 powder was treated by KH-550 and demolding agent. The BMI and treated carbon fiber and SiO2 was mixed at 90-100℃ and then molded into composite sample. The surface of carbon fiber was analyzed by XPS and the bending strength and water absorption of the composites sample was tested.更多还原