上浆剂使用浓度对碳纤维性能的影响研究  

Effect of the concentration of sizing agent on the interface properties of carbon fibre

作　　者：张如良[1,2] 黄玉东[1] 刘丽[1] 刘青松[1] 

机构地区：[1]哈尔滨工业大学化工学院,哈尔滨150001 [2]山东科技大学材料科学与工程学院,山东青岛266590

出　　处：《哈尔滨工业大学学报》2011年第11期75-79,共5页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(51073047)

摘　　要：为了改善碳纤维表观性能及其复合材料界面性能,不同浓度的上浆剂用于碳纤维表面上浆.采用原子力显微镜(AFM)、动态接触角测试仪(DCAT)和微复合材料界面结合强度(IFSS)等研究了上浆剂浓度对碳纤维的表面形貌,表面能及对微复合材料界面性能和耐湿热老化性能的影响.实验结果表明:上浆剂的使用浓度对碳纤维表观性能影响较大.AFM证实使用浓度2%时,碳纤维表面沟槽消失.上浆剂的使用浓度对碳纤维的表面能的影响表现在其色散分量的减小和极性分量的增加,对制备的微复合材料的界面性能和耐湿热老化性能有较大的影响.1.5%使用浓度的上浆剂有助于改善碳纤维表观性能及与树脂基体的界面结合强度和耐湿热老化性能.The effects of different kinds of concentration of sizing agent on the performances of carbon fibre and interface of its composites were studied by atomic force microscopy （AFM）, and the surface energy along with contact angles was determined by dynamic contact angle analysis test （DCAT） with three different polar liquid. The interracial shear strengths and hygrothermal ageing of carbon fibres micro-composites was also studied. It was found that the grooves on the 2% sized carbon fiber were disappeared. A significant change in the surface energy of these materials was displayed with the decreased yd and increased TP. The results indicate that the concentration has great effect on the micro-composites interface and ageing properties. The 1.5% sized carbon fibre shows better interracial adhesion and ageing property than others.

关 键 词：碳纤维 复合材料 界面 力学性能 湿热老化 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]