A Study on the Fracture Characteristics of Plasma-Treated Graphite/Epoxy Laminated Composites

Abstract:

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For a present study, the surfaces of graphite/epoxy prepregs were modified using plasma treatment to improve the delamination resistance behavior of graphite/epoxy laminated composites. The optimal treatment time was determined by measuring the change of contact angle with treatment time. Unidirectional DCB (double cantilever beam) specimens were used in the mode I delamination fracture tests. The delamination resistance curve of regular (untreated) specimen was compared with that of plasma-treated specimen in order to determine the effect of prepreg treatment on the resistance behavior. It was found that contact angle was changed from ~64° to ~47° depending on the treatment time. The contact angle was a minimum for a 30 min treatment time. It was also found that delamination resistance behavior of graphite/epoxy composites was improved about 20%.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

869-872

DOI:

10.4028/www.scientific.net/KEM.321-323.869

Citation:

M.H. Kim et al., "A Study on the Fracture Characteristics of Plasma-Treated Graphite/Epoxy Laminated Composites", Key Engineering Materials, Vols. 321-323, pp. 869-872, 2006

Online since:

October 2006

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Price:

$35.00

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