Modeling of Atmospheric Pressure Plasma Processing of Gases and Surfaces
Dorai, Rajesh
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https://hdl.handle.net/2142/82340
Description
Title
Modeling of Atmospheric Pressure Plasma Processing of Gases and Surfaces
Author(s)
Dorai, Rajesh
Issue Date
2002
Doctoral Committee Chair(s)
Kushner, Mark J.
Department of Study
Chemical and Biomolecular Engineering
Discipline
Chemical and Biomolecular Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
Atmospheric pressure plasma processing of PP in humid air increases the surface densities of alcohol, peroxy, acid, and carbonyl groups. However, significant amounts of O3 and NxOy are generated in the gas phase. Increasing the relative humidity results in decreased production of O3 and increased concentrations of peroxy and acid groups on the surface. Increasing the gas temperature increases the surface concentration of peroxy radicals and decreases the concentrations of alcohol, carbonyl, and acid groups. For a given energy deposition, increasing the web speed results in decreased surface densities of peroxy, alcohol, carbonyl, and acid groups.
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