Description
Plasma polymerized acetylene films were deposited onto steel substrates by using a microwave-powered plasma reactor and used as primers for rubber-to-metal bonding. Films deposited at relatively high reactor pressures (>1.5 Torr) were much more effective than those deposited at lower pressures (< 0.5 Torr). Films having a thickness of only a few tens of nanometers were found to be more effective primers than films that were much thicker.