Cascade arc plasma torch and a process for plasma polymerization

摘要

The present invention is directed to an arrangement of cascade arc plasma torches in a process for plasma polymerization. The arrangement is utilized in low temperature plasma polymerization coating and utilizes a plasma reactor with concentric electroconductive rings separated by insulator rings. The rings are positioned between electrode connectors and form a central passage through the plasma reactor. A voltage supply source provides a voltage across the plasma reactor so as to initiate and continue the polymerization coating process. Downstream of the plasma reactor, an arrangement is provided by which monomeric gas is fed into a passage at a downstream end of the reactor so as to enable plasma polymerization.