Quality Control of Electroless Copper Plating on the Surface of Graphite Powder

摘要

The deposition of copper on the surface of graphite powder was made by eletroless copper plating with formaldehyde as reductant, and copper sulfate as main salt. The influencing factors including concentration of copper sulfate solution, the dosage of reductant, the dosage of pH regulator, the dosage of complexing agent and reaction temperature were investigated in the experiment in order to optimize the processing parameter of electroless copper plating on the surface of graphite powder. The micro-topography and composition of graphite power coated with copper were detected by means of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The results showed that the homogeneous rose pink copper coating bonds compactly with the graphite powder at the optimal processing parameters.