Oxygen plasma etching of hydrocarbon‐like polymers: Part II experimental validation

Abstract

The objective in Part II is to verify whether the model developed in Part I for the etching of polymers in oxygen plasmas can apply to all types of polymers. The experimental parametric study of the etching of different polymers in oxygen plasmas and under distinct operating conditions confirms that their etching kinetics follow the general laws derived from the modeling: 1) under identical operating conditions, the etch rates of polymer films with equal carbon concentration are the same and 2) the activation energies for spontaneous etching are shown to be effectively independent of the plasma operating conditions, and their values, common to all polymers, are 0.76 ± 0.05 eV for CO 2 desorption and 0.40 ± 0.05 eV for CO desorption.

Cold plasma treatment influences the physiological parameters of millet

“…Thermal plasma (hightemperature or equilibrium plasma) is in thermodynamic equilibrium, making it unsuitable for the treatment of biological material due to its high temperature. Nonthermal plasma (cold plasma or nonequilibrium plasma), on the other hand, is not in thermodynamic equilibrium, making it suitable for the treatment of biological material, as the temperature of discharge is near room temperature (Bès et al 2018, Lin et al 2022.…”