缩水甘油
材料科学
复合材料
环氧树脂
纤维
聚合
原位聚合
表面改性
表征(材料科学)
聚合物
化学工程
纳米技术
化学
催化作用
有机化学
工程类
作者
Bo Gao,Jing Zhang,Zhenna Hao,Lujie Huo,Ruliang Zhang,Lu Shao
出处
期刊:Carbon
[Elsevier]
日期:2017-08-05
卷期号:123: 548-557
被引量:94
标识
DOI:10.1016/j.carbon.2017.08.008
摘要
In this study, hyperbranched polyglycerol (HPG) is chemically bound onto carbon fiber (CF) surface by anionic ring-opening polymerization for linking fiber and matrix to release interior and exterior applied forces. To explore the optimal conditions for the successful hyperbranched polymerization of glycidol on the carbon fiber, various characterization techniques were employed. The atomic force microscope quantitative nanomechanical mapping results reveal that the HPG can significantly improve interfacial status between carbon fiber and epoxy matrix. Compared with the mechanical properties of desized fiber based composites, both interfacial shear strength and interlaminar shear strength of HPG grafted fiber/epoxy composites increase by 90.69% and 49.83%, respectively. The adjustable size of HPG grafted on CF endorse the CF modification strategy with the unique characteristic, which can design the optimized interface between CF and resin to meet various scientific and technical demands.
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