Fiber/Matrix Adhesion in Graphite/PEKK Composites

Author:

Bucher R.A.1,Hinkley J.A.2

Affiliation:

1. Department of Engineering Science and Mechanics Virginia Polytechnic Institute and State University Blacksburg, VA 24061

2. Polymeric Materials Branch NASA Langley Research Center Hampton, VA 23665-5225

Abstract

Experiments with poly ether ketone ketone (PEKK) resin and AS-4, IM-7, and G30-500 fibers showed excellent correlation between resin/fiber contact angle and composite transverse flexural strength as measures of resin/fiber interfacial strength. Both tests indicate the strongest interface for G30-500/PEKK followed by IM-7/PEKK and AS-4/PEKK. Also discussed are fiber effects on interlaminar fracture and on the in-situ crystallization of the matrix during composite fabrication.

Publisher

SAGE Publications

Subject

Condensed Matter Physics,Ceramics and Composites

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