苯并噁嗪树脂基复合材料的制备及性能表征  

The Preparation and Properties Characterization of Polybenzoxazine Composites

作　　者：赵明月[1] 陆春[1] 陈平[1,2] 方路平[1] 

机构地区：[1]沈阳航空航天大学航空航天工程学部先进聚合物基复合材料制备技术辽宁省重点实验室,沈阳110136 [2]大连理工大学化工学院精细化工国家重点实验室,辽宁大连116024

出　　处：《纤维复合材料》2015年第1期3-8,共6页Fiber Composites

基　　金：辽宁省优秀人才基金项目(LJQ2012013)

摘　　要：本文采用氧等离子体对碳纤维表面进行活化,后用偶联剂接枝的方法对碳纤维表面进行处理。按照GB3357-82和GB3356-82,对复合材料层间剪切强度和弯曲强度进行测试并研究等离子体处理及偶联剂接枝对碳纤维/苯并噁嗪(Polybenzoxazine,PBOZ)复合材料界面粘接性的影响。通过XPS,SEM对碳纤维表面及复合材料断裂面形貌进行测试,分析界面粘接机制。研究表明,氧等离子体处理使碳纤维表面粗糙度和活性含氧基团含量增加,增加了纤维与树脂之间的粘接性;氧等离子体处理后再进行偶联剂接枝,碳纤维表面的含氧官能团增加,浸润性得到改善,提高了碳纤维/PBOZ复合材料界面粘接性能。In this paper, carbon fiber surface was modified by oxygen plasma, after plasma treatment, carbon fiber was grafted with coupling agents. The influence of plasma treatment as well as coupling grafting on carbon fiber/Polybenzoxazine （PBOZ） composite interfacial adhesion were studied using inter-laminar shear strength（ILSS） and bending strength according to GB3357-82 and GB3356-82. And interracial adhesion mechanism was analyzed using XPS, SEM. The results show that oxygen plasma treatment increase CF surface roughness, which improve the interfacial bonding between the fiber and resins. After grafting with coupling agent, functional group content of CF surface increase slightly, as a result fiber wettability as well as composite interracial adhesion is enhanced is imnroved.

关 键 词：碳纤维 等离子体处理 偶联剂 界面粘接性 苯并噁嗪 

分 类 号：TQ342.742[化学工程—化纤工业] TB33[一般工业技术—材料科学与工程]