EFFECTS OF PROCESSING AND INTERFACE MORPHOLOGY ON CARBON FIBER MODIFIED INTERLAYER TOUGHENED POLYNANOMATRIX COMPOSITES

摘要

Nanofiber modified polymeric composite systems display improved strength and modulus when compared to polymeric composites. In this study, nanofibers were incorporated into resin systems that can be used to toughen a prepreg interlayer. In order to enhance the mechanical properties of the fiber reinforced polymeric composites, nanofiber dispersion and the compatibility of nanofiber/matrix interface need to be controlled. The morphology of the nanofiber modified matrix and the degree of nanofiber dispersion were investigated using Scanning Electron Microscopy (SEM). Mechanical properties such as dynamic storage modulus, as well as thermal stability of the matrix system of the fiber reinforced polymeric composites, were evaluated using different fiber/matrix interface variations.