期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 90, 期 -, 页码 589-597出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2016.08.025
关键词
Fibers; Polymer-matrix composites (PMCs); Interface; Surface treatments
资金
- Japan Society for the Promotion of Science (JSPS) KAKENHI Grant [JP25289243]
- JSPS (Invitation Fellowship for Research in Japan) [S-13179]
Abaca fibers demonstrate enormous potential as reinforcing agents in composite materials. In this study, abaca fibers were immersed in 5, 10 or 15 wt.% NaOH solutions for 2 h, and the effects of the alkali treatments on the mechanical characteristics and interfacial adhesion of the fibers in a model abaca fiber/epoxy composite system systematically evaluated. After 5 wt.% NaOH treatment, abaca fibers showed increased crystallinity, tensile strength and Young's modulus compared to untreated fibers, and also improved interfacial shear strength with an epoxy. Stronger alkali treatments negatively impacted fiber stiffness and suitability for composite applications. Results suggest that mild alkali treatments (e.g. 5 wt. % NaOH for 2 h) are highly beneficial for the manufacture of abaca fiber-reinforced polymer composites. (C) 2016 Elsevier Ltd. All rights reserved.
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