碳纤维表面改性处理及其基本性能表征  

Surface modification and performance characterization of carbon fibers

作　　者：程燕婷[1] 孟家光[1] 刘青[1] 

机构地区：[1]西安工程大学纺织与材料学院,陕西西安710048

出　　处：《纺织学报》2016年第6期22-26,共5页Journal of Textile Research

基　　金：陕西省重点学科建设专项资金资助项目(陕[2008]169)

摘　　要：为改善碳纤维与树脂基体之间的界面性能,提高碳纤维的摩擦性和表面浸润性,以T300碳纤维为原料,在空气条件下采用低温等离子体技术对碳纤维表面进行改性处理。通过正交试验分析法,得到等离子体处理的最佳方案;通过场发射扫描电镜观察得出,经过改性处理后的碳纤维表面变得凹凸不平且具有明显的剥离现象,表面粗糙度增加;通过傅里叶红外光谱测试分析得出,等离子体处理后碳纤维表面引进了—CH_2—OH和—COH等新的官能团。等离子体处理使得碳纤维断裂强力减小,摩擦性能提高,表面浸润性提高;在制备碳纤维复合材料时有利于纤维与树脂的结合,利于碳纤维复合材料的制备。In order to improve the interface performance of carbon fibers and resin matrix,by using T300 carbon fiber as raw materials,the surface of the carbon fiber was modified by low-temperature plasma technology under the condition of air. By the orthogonal test analysis,the best solution of low-temperature plasma is concluded. Field emission scanning electron microscopy（ SEM） results show that the carbon fiber surfaces become uneven and have obvious detachment phenomenon after modification. Meanwhile,the surface roughness increases. Fourier infrared spectrum（ FT-IR） test and analysis show that the carbon fiber surfaces have new functional groups such as -CH_2-OH and -COH after low- temperature plasma treatment. By the plasma treatment,the tensile strength of carbon fiber is reduced,friction properties are improved and the surface wettability is increased. It facilitates the combination of fibers and resins in the preparation of carbon fiber composite materials as well as the preparation of carbon fiber composite materials.

关 键 词：碳纤维 改性处理 低温等离子体技术 基本性能 

分 类 号：TB332[一般工业技术—材料科学与工程]