Mechanical properties of injection-molded carbon fiber/polypropylene composites hybridized with nanofillers

Y. Arao*, S. Yumitori, H. Suzuki, T. Tanaka, K. Tanaka, T. Katayama

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


Short-carbon-fiber/polypropylene composites (CF/PP composites) have high processability and recyclability but low strength. To improve the strength, various nanofillers were hybridized to form fiber-reinforced composites. Adding nanofillers improves not only the strength but also the elastic modulus, with the exception of clay nanofillers. To understand the strengthening mechanism resulting from the addition of nanofillers, the residual fiber length and interfacial shear strength were measured. For CF/PP composites, the addition of alumina, silica, and CNT improves the interfacial shear strength, and thereby, the mechanical properties. On the basis of this result, proper choice of nanofiller type and content for improving the mechanical properties of PP/CF composites is discussed.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Publication statusPublished - 2013
Externally publishedYes


  • A. Carbon fiber
  • A. Hybrid
  • A. Thermoplastic resin
  • E. Injection molding

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials


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