Publications [#269719] of David R. Smith

Papers Published
  1. Ghezzo, F; Smith, DR; Starr, TN; Perram, T; Starr, AF; Darlington, TK; Baldwin, RK; Oldenburg, SJ, Development and characterization of healable carbon fiber composites with a reversibly cross linked polymer, Journal of Composite Materials, vol. 44 no. 13 (2010), pp. 1587-1603 [doi] .

    Abstract:
    Carbon fiber reinforced polymer (CFRP) laminates with remendable cross-linked polymeric matrices were fabricated using a modified resin transfer mold (RTM) technique. The healable composite resin, bis-maleimide tetrafuran (2MEP4F), was synthesized by mixing two monomers, furan (4F) and maleimide (2MEP), at elevated temperatures. The fast kinetic rate of the reaction of polymer constituents requires a fast injection of the healable resin into the carbon fiber preform. The polymer viscosity as a function of time and temperature was experimentally quantified in order to optimize the fabrication of the composite material and to guarantee a uniform flow of the resin through the reinforcement. The method was validated by characterizing the thermo-mechanical properties of the polymerized 2MEP4F. Additionally, the thermo-mechanical properties of the remendable CFRP material were studied. © 2010 The Author(s).