Advertisement

Resin film infusion: Toward structural composites with nanofillers

Authors

  • Anoop Anand,

    Corresponding author
    1. Composites Research Center, Research and Development Establishment (Engineers), Defense Research and Development Organisation – Ministry of Defense, Pune 411 015, Maharashtra, India
    • Composites Research Center, Research and Development Establishment (Engineers), Defense Research and Development Organisation – Ministry of Defense, Pune 411 015, Maharashtra, India
    Search for more papers by this author
  • Rahul Harshe,

    1. Composites Research Center, Research and Development Establishment (Engineers), Defense Research and Development Organisation – Ministry of Defense, Pune 411 015, Maharashtra, India
    Search for more papers by this author
  • Makarand Joshi

    1. Composites Research Center, Research and Development Establishment (Engineers), Defense Research and Development Organisation – Ministry of Defense, Pune 411 015, Maharashtra, India
    Search for more papers by this author

Abstract

Resin Film Infusion (RFI) has been used to fabricate composites with continuous unidirectional E-glass and epoxy with low weight fractions of carbon nanotubes (CNTs) in matrix. An ultrasound-assisted dissolution-evaporation method with thermoplastics or block copolymers as dispersing agents for nanoparticles enabled uniform dispersion of CNTs in the resin. Rheological characterization of CNT-filled epoxy revealed that viscosity, and hence processing of the resin remains unaffected as compared to pristine resin at elevated temperatures of subsequent composite manufacturing. Local flow of the modified resin through the sandwiched fabric plies in RFI process as against the global flow in traditional liquid composite molding processes, made sure that uniform distribution of nanoparticles is accomplished throughout the composite. Compressive properties of hybrid composites improved considerably with CNTs at loading fractions as low as 0.2 wt %. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

Ancillary