期刊
COMPOSITES PART B-ENGINEERING
卷 43, 期 2, 页码 309-316出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2011.08.044
关键词
Polymer-matrix composites (PMCs); Glass fibers; Mechanical properties
资金
- National Aeronautics and Space Administration (NASA) of the United States [NNX07AT52A]
- U.S. Air Force Research Laboratory (AFRL) [FA9453-06-C-0366]
- New Faculty Research Initiative
- NDSU Development Foundation
In this study, hybrid multi-scale composites were developed from glass microfiber fabrics (GFs) and nano-epoxy resins containing electrospun glass nanofibers (EGNFs). The hypothesis was that, through dispersing a small amount of EGNFs into epoxy resin, mechanical properties (particularly out-of-plane mechanical properties) of the resulting hybrid multi-scale composites would be significantly improved. The composites were fabricated by the technique of vacuum assisted resin transfer molding (VARTM). The interlaminar shear strength, flexural properties, impact absorption energy, and tensile properties of the composites were evaluated, and the results were compared to those acquired from GFs/epoxy composite as well as GFs/epoxy composites containing chopped glass microfibers (GMFs); additionally, the reinforcement and/or toughening mechanisms were investigated. The study revealed that the nano-epoxy resin with 0.25 wt.% of EGNFs resulted in substantial improvements on mechanical properties of the resulting hybrid multi-scale composites. (C) 2011 Elsevier Ltd. All rights reserved.
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