Plasma polymer decay rate

Characterization of this tumbler reactor was carried out via the deposition rate measurement of a plasma polymer film on silicon wafers under different conditions. In the longitudinal direction, the deposition rate decreases significantly when the plasma moves from the central plasma zone to the remote zone. With appropriate shielding, the decay in deposition rate in the longitudinal direction can be effectively reduced. By means of the stirring, a uniform distribution of the plasma deposition is achieved within the chamber. 

Decay Rate of Cathodic Plasma Polymer and Glow Discharge Polymer... 

Another noteworthy factor which influences the aging characteristics of an atmospheric plasma treated roll polymer surface is temperature. Practical industrial experience has indicated that lower in-plant or in-warehouse storage temperature will reduce the decay rate of surface tension. This has been measured by contact angle for nonporous roll polymers whereby a change in the advancing contact... 

As has been discussed, a polymer exposed to a reactive plasma will be undergoing simultaneous surface modification reactions and surface removal reactions. If the removal rates dominate or if a non-reactive plasma is used, the polymer surface will contain a large number of free radicals when the plasma is turned off. These radicals may react with themselves to form cross-linking or unsaturation, they may react with the plasma gas as it decays after the power is turned off or, they will react with... 

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