hybrid veil, composite laminate, fibrous preform, prepreg, prepreg tape, fibrous tape, fabric, fiber reinforced polymer composite structure, and methods for making a modified prepreg and for making a composite structure ?

摘要

It is a flexible, self-supporting hybrid veil that is permeable to liquid and gas. the hybrid veil includes: (a) stranded randomly arranged fibers in the form of a nonwoven structure; (b) particles dispersed throughout the nonwoven structure, wherein a majority of the particles are penetrating through the thickness of the nonwoven structure; and (c) a polymeric or resinous binder present throughout the veil. Such a hybrid veil may be incorporated into composite laminates, prepregs, fabrics and fibrous preforms.