Influence of the glass transition of interlaminar particles on shear behaviour during cure of interlayer toughened thermoset composites

This work investigates the effect of the glass transition of interlaminar toughening particles on the in-plane (G12) and out-of-plane (G13) lamina shear modulus during cure for an interlayer toughened prepreg system, Toray T800SC/3900-2B. The dependence of lamina G12 and G13 on temperature and degree of cure (DoC) of the resin was determined using Dynamic Mechanical Analysis (DMA). Lamina G12 is mainly governed by resin properties, whereas...