期刊
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
卷 35, 期 2, 页码 165-176出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0731684415610919
关键词
Interlaminar fracture toughness; interface; laminate; carbon nanotube; buckypaper
资金
- Natural Science Foundation of China [11172211]
In this study, thin carbon nanotube (CNT) buckypapers (BPs) with desired porosity were prepared by using of positive pressure filtration method. The obtained porous BP was then directly incorporated into the middle interface of a composite laminate to improve the interlaminar fracture toughness. Double cantilever beam and end-notch flexure tests were conducted to examine the influence of the obtained BP on mode I and mode II interlaminar fracture toughness (G(IC) and G(IIC)) of the laminates. Results have shown the porous BPs would significantly enhance the G(IC) and G(IIC) up to 74% and 82%, respectively. Improved interfacial bonding and increased large fracture surfaces were obtained for the laminate incorporated with thin CNT BPs. Similar enhancement was also detected in acoustic emission energy variation for mode II fracture and auxiliary proved the reinforcing effect of the BP.
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