Title of article :
Modification of carbon fiber surfaces by electrochemical reduction of aryl diazonium salts: Application to carbon epoxy composites Original Research Article
Author/Authors :
M. Delamar، نويسنده , , G. Désarmot، نويسنده , , O. Fagebaume، نويسنده , , R. Hitmi، نويسنده , , J. Pinsonc، نويسنده , , J.-M. Savéant، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1997
Abstract :
Electrochemical reduction of aryl diazonium salts on carbon fibers both in aprotic and in aqueous acidic solutions leads to the grafting of the aryl group on the carbon surfaces. In acidic medium the grafting of 4-nitrophenyl groups occurs simultaneously with the reduction to 4-aminophenyl groups which, in their turn, can react with the epoxy functions of epoxy resins. It is shown through a simple mechanical test that this process increases the adherence between the fiber and the matrix.
Keywords :
C. voltammetry , D. Surface properties , B. grafting , A. Carbon fibers