Basic and acidic surface oxides on carbon fiber and their influence on theexpected adhesion to polyamide

This study presents contact angle measurements versus test liquids and dire ctly between carbon fibers and a polyamide:melt in combination with zeta (z eta)-potential measurements to predict the adhesion in carbon fiber reinfor ced polyamide composites. In addition and to compare the results: of the ph ysico-chemical measurements model, composites were prepared to determine th e interfacial shear strength as a measure for the adhesion between acidic o r basic modified carbon fibers and a polyamide matrix. (C) 1999 Elsevier Sc ience B.V. All rights reserved.