COMPOSITE MATERIALS WITH HIGH Z-DIRECTION ELECTRICAL CONDUCTIVITY

摘要

A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed.

主权项

1. A curable composite material comprising:
at least two layers of reinforcement carbon fibers impregnated with a curable matrix resin; and an interlaminar region formed between adjacent layers of reinforcement carbon fibers, the interlaminar region comprising (i) conductive nano-sized particles dispersed therein, and (ii) a nonwoven carbon veil, wherein each of the conductive nano-sized particles has at least one dimension smaller than about 100 nm.