When electrolyzing the KCl zincic plating bath additionally containing acrylamide and N

N′ -methylenebisacrylamide

a composite process of zinc electrodeposition and acrylamide electropolymerization took place on the cathode surface and

as a result

a composite coating of zinc and polyacrylamide was obtained.It is sulggested that polyacrylamide macromolecular chains are distributed in the zincic coating at a molecular level

and this new composite coating is different from common one with solid particles distributed.The performance of composite coating

appearance features

adhesion strength and wetted capability

was studied.