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A Study on the Prepreg Treatment to Improve Interlaminar Fracture Behavior of Graphite/Epoxy Composites  

Kim, Min-Ho (경희대학교 일반대학원)
Rhee, Kyong-Yop (경희대학교 테크노공학대학 기계산업시스템공학부)
Paik, Young-Nam (경희대학교 테크노공학대학 기계산업시스템공학부)
Kim, Hyeon-Ju (강원도 고성군 죽왕면 해양심층수연구센터)
Jung, Dong-Ho (강원도 고성군 죽왕면 해양심층수연구센터)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.10, 2006 , pp. 68-73 More about this Journal
Abstract
In this study, the graphite/epoxy prepregs were surface-treated using oxygen plasma, and optimal treatment time was determined measuring the contact angle on the prepreg surface. Interlaminar fracture behavior of surface-treated graphite/epoxy composites was compared with that of regular (untreated) graphite/epoxy composites. The results showed that the contact angle was a minimum when treated for 30 minutes. The interlaminar fracture toughness of surface-treated specimen was improved about 15% compared with that of regular specimen.
Keywords
Contact Angle; Energy Release Rate; Fracture Toughness; Graphite/Epoxy Composites; Interlaminar Fracture;
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