FUNCTIONAL COMPOSITE MATERIALS USING 3 DIMENSIONAL MICROPIPE NETWORKS AND FUNCTIONAL FLUIDS AND METHOD FOR FABRICATING THE SAME

摘要

Disclosed is a method or preparing a functional composite material using a three-dimensional micro-pipe network and a functional fluid, wherein the functional composite material is capable of monitoring self integrity of a structure material, being utilized as a frequency section structure for selectively transmitting/blocking only a desired frequency, and self-recovering a damaged site thereof when the material is broken. For achieving the purpose, the method comprises the steps of: preparing sacrifice fibers by using a material removable by heat or a chemical reaction; molding a composite material by weaving the prepared sacrifice fibers to form a preform and then injecting a resin into the preform to allow the resin to permeate between the sacrifice fibers; forming fine pipes in the composite material by a procedure in which the molded composite material is depolymerized by heat or a chemical reaction to remove the sacrifice fibers formed inside the composite material; and injecting and filling a functional fluid into the fine pipes formed in the composite material.