构筑TiO2/碳纤维多级增强树脂基复合材料研究  

Study on the construction of TiO2/carbon fiber multi-levelreinforced resin-based composites

作　　者：费杰[1] 李盟 郑欣慧 FEI Jie;LI Meng;ZHENG Xin-hui(School of Materials Science and Engineering,Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学材料科学与工程学院陕西省无机材料绿色制备与功能化重点实验室,陕西西安710021

出　　处：《陕西科技大学学报》2020年第6期105-111,145,共8页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(51872176)。

摘　　要：为了改善碳纤维/酚醛复合材料的界面性能,可以通过溶胶-凝胶法和水热法在碳纤维与树脂之间引入了TiO 2薄膜层、纳米线层,来实现多级增强.本文系统研究了不同厚度的薄膜层对复合材料力学性能和摩擦学性能的影响.结果表明,当溶胶-凝胶法涂覆3次并水热生长纳米线时,薄膜层的厚度为0.1μm时,复合材料具有最大的弯曲强度,较原始样品增加了32.8%.而且,其平均摩擦系数为0.17,磨损率最小且相较于原始样品降低了39.8%.In order to improve the interface performance of carbon fiber/phenolic composites,TiO 2 thin film layer and nanowire layer were introduced between carbon fiber and resin by sol-gel method and hydrothermal method,so as to achieve multistage enhancement.The effects of different thickness of thin films were systematically studied on the mechanical properties and tribological properties of composites.The results showed that when sol-gel coating was applied for 3 times and the nanowires were hydrothermal grown,the maximum bending strength of the composite was obtained when the thickness of the thin film was 0.1μm,which was 32.8%higher than that of the original sample.In addition,the average friction coefficient of the composite was 0.17,and the wear rate was reduced by 39.8%compared with the original.

关 键 词：碳纤维 TiO 2薄膜层 弯曲强度 摩擦系数 磨损率 

分 类 号：TB332[一般工业技术—材料科学与工程]