CAJ | 학술논문

为了提高碳纤维/环氧树脂复合材料界面粘结性能，利用化学接枝法对碳纤维表面进行改性，通过加入引发剂和分步反应等方法，改善了传统化学接枝法反应温度高、时间长的缺点.利用 XPS、Raman、SEM、电子万能材料试验机研究了改性前后碳纤维的结构及其复合材料性能的变化.结果表明，碳纤维经过氧化、接枝反应，表面活性官能团的含量和粗糙度增加，复合材料的层间剪切强度增加.在相同条件下，接枝乙二胺、乙二醇的碳纤维/环氧树脂复合材料的层间剪切强度分别提高了52．5％和47．9％，相比而言，乙二胺是较为理想的接枝单体.
위료제고탄섬유/배양수지복합재료계면점결성능，이용화학접지법대탄섬유표면진행개성，통과가입인발제화분보반응등방법，개선료전통화학접지법반응온도고、시간장적결점.이용 XPS、Raman、SEM、전자만능재료시험궤연구료개성전후탄섬유적결구급기복합재료성능적변화.결과표명，탄섬유경과양화、접지반응，표면활성관능단적함량화조조도증가，복합재료적층간전절강도증가.재상동조건하，접지을이알、을이순적탄섬유/배양수지복합재료적층간전절강도분별제고료52．5％화47．9％，상비이언，을이알시교위이상적접지단체.
Chemical grafting was usually to modify the carbon fiber surface to improve interfacial adhesion prop-erties of the carbon fiber/epoxy composite.XPS,Raman spectra,SEM and electronic universal testing machine were employed to characterize chemical states,morphology and interlaminar shear strength (ILSS)of untreat-ed,oxidation,C2 H 8 N2 reduction,C2 H 6 O 2 reduction carbon fiber surface.The results indicated that carbon fi-ber surface O/C ratio,the content of oxygen functional groups,the fiber surface roughness of carbon and the ILSS of carbon fiber/epoxy composite was increased after oxidation and chemical grafting on the surface of car-bon fiber.Under the same conditions,the 1.2-ethanediamine graft solutions can make the carbon fiber/epoxy composite ILSS was increased by the rate of 52.5% and the 1.2-ethanediol graft solutions can make the carbon fiber/epoxy composite ILSS was increased by the rate of 47.9%,the 1.2-ethanediamine graft solutions have ide-al grafting effect on carbon fiber surface.