Temperature effect on graphene-filled interface between glass-carbon hybrid fibers and epoxy resin characterized by fiber-bundle pull-out test

被引:20
作者
Yang, Bin [1 ]
Tang, Xiaojun [2 ]
Yang, Kang [1 ]
Xuan, Fu-Zhen [1 ]
Xiang, Yanxun [1 ]
He, Liang [3 ]
Sha, Jin [1 ]
机构
[1] East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China
[2] China Acad Space Technol, Beijing Spacecrafts, Beijing, Peoples R China
[3] Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin, Heilongjiang, Peoples R China
基金
中国国家自然科学基金;
关键词
fiber; matrix bond; mechanical testing; polymer-matrix composites; surface treatments; INTERLAMINAR FRACTURE-TOUGHNESS; MECHANICAL-PROPERTIES; FIBER/EPOXY COMPOSITES; FIBER/MATRIX INTERFACE; SURFACE MODIFICATION; WATER-ABSORPTION; HIGH-PERFORMANCE; STRENGTH; BEHAVIOR; DESIGN;
D O I
10.1002/app.46263
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The overall mechanical performance of glass-carbon hybrid fibers reinforced epoxy composites depends heavily upon fiber-matrix interfacial properties and the service temperatures. Fiber-bundle pull-out tests of glass (GF) and/or carbon fiber (CF) reinforced epoxy composites were carried out at room and elevated temperatures. Graphene nanoplatelets were added in the interfacial region to investigate their influence on the interfacial shear strength (IFSS). Results show that IFSS of specimens with fiber-bundle number ratio of GF:CF=1:2 is the largest among the hybrid composites, and a positive hybridization effect is found at elevated temperatures. IFSS of all the specimens decreases with the increasing of test temperatures, while the toughness shows a contrary tendency. As verified by scanning electron microscopy observations, graphene nanoplatelets on fiber surface could enhance the IFSS of pure glass/carbon and hybrid fibers reinforced epoxy composites at higher temperatures significantly. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46263.
引用
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页数:10
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