摘要
采用空气介质阻挡放电(DBD)常压等离子体对整体中空复合材料玻纤预制件的表面进行处理。利用FTIR-ATR、SEM、毛效实验表征处理后的预制件表层纤维及芯材纤维,并利用LRXPlus电子材料试验机测试整体中空复合材料的平压性能。结果表明,等离子体可通过预制件孔径渗透到织物芯材,表层纤维和芯材表面反应活性点增多;两者表面粗糙度均增加;纤维浸润性分别提高了20.9%和19.4%;整体中空复合材料的平压强度提高了28.79%。
The atmospheric dielectric barrier discharge（DBD） plasma is used to treat the surface of E-glass fibers in 3D woven composite preform. After DBD treatment, the fibers are characterized by FTIR-ATR, SEM and wicking tests. Then the preforms are molded into hollow integrated sandwich composites and their flatwise compression property is evaluated by LRXPlus material testing machine. The results show that the plasma can premeate into the core of 3D woven perform. Fiber surface reactivity and roughness both in the panel and the core increases, the average wicking altitude of the fibers raises 20. 9% in the panel and 19.4% in the core. The flatwise compression performance of the hollow integrated sandwich composites is improved by 28. 79%.
基金
江苏省科技支撑项目(BE2008017)
