Demonstrating the need of taking into account the compatibility tackifier/resin, and processing conditions to control mechanical properties of RTM CFRP

By using the Taguchi method of experimental design, it has been possible to demonstrate the influence of some processing factors on hot interlaminar shear strength and on hot open hole compressive strength of carbon/epoxy composite materials processed by resin transfer molding. It was demonstrated that mold temperature and injection pressure have an effect on the final quality of the composite. Moreover, the tackifier/resin compatibility is essential to guarantee conservation of the mechanical properties with temperature.