Elastic Moduli of Injection-Molded Short-Fiber-Reinforced Poly(ether-ether-ketone)

C. L. Choy, Kin Wing Kwok, W. P. Leung, Felix P. Lau, K. W. Kwok

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The nine independent elastic constants of injection-molded bars of poly(ether-ether-ketone) reinforced with 30% by weight of carbon fibers and 20% and 30 % by weight of glass fibers have been determined by ultrasonic techniques. The tensile and shear moduli increase with increasing fiber volume fraction, with the tensile modulus along the longitudinal (mold flow) direction showing the greatest change. The longitudinal tensile modulus of 30 weight % carbon- and glass-fiber-reinforced composites exceeds the tensile modulus of the matrix by factors of 6 and 3, respectively. By regarding the injection-molded bar as a multidirectional laminate comprising a large number of uni directional plies, the elastic moduli have been calculated and found to agree closely with the experimental data.
Original languageEnglish
Pages (from-to)226-238
Number of pages13
JournalJournal of Thermoplastic Composite Materials
Volume6
Issue number3
DOIs
Publication statusPublished - 1 Jan 1993

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics

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