Effects of reactive and non-reactive tackifying agents on mechanical neat resin and composite performance for preforming processes and Liquid Resin Infusion (LRI) techniques

Preforming processes can be used for automated manufacturing of fiber reinforced polymers. Different technologies are processing dry textile fabrics into 2D or 3D preforms. Due to missing tack fabrics, auxiliary binder systems fixation the onto a substrate material and in order achieve sufficient adhesion between layers. In this study, seven reactive non-reactive tackifying agents have been dissolved neat resin samples three epoxy systems, showing different degrees solubility variation on tensile properties (ΔσAVG = 20%) as well reduction thermal (up ΔTg −18 °C). Subsequently, polymers were manufactured using Liquid Resin Infusion techniques characterize influence water absorption (cs,max 1.38 wt%) Interlaminar Shear Strength (ILSS). It was shown that ILSS negatively affected by −27%).