Miniaturization of carbon fibers and its applications

Exfoliated carbon fibers (ExCFs) obtained through rapid heat-treatment of intercalation compounds of carbon fibers had changed to the bundle of thin filament. In one of applications of its ExCFs, it was tried to nanocomposite where the application of Carbon nano tube (CNT) made an attempt. Preparation of composite using Nylon 6 and the ExCFs as the matrix and fillers was carried out by the injection molding. As the result, it became clear that addition of the ExCFs as fillers could be reinforced the matrix. Bending stress and elastic modulus of composite reinforced by the ExCFs increased around 50% with increasing in addition of the ExCFs in comparison with blank. It became clear that the ExCFs also exhibited better field emission characteristic at small-applied voltage in the case of an electrode material of field emission display (FED). Its field emission characteristics surpassed the case which CNT was applied to the electrode. Future applications were expected to the ExCFs.