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Atmospheric-Pressure Plasma Treatment of Ethylene-Vinyl Acetate (EVA) to Enhance Adhesion Energy between EVA and Polyurethane  

Kim, Jeong-Soon (Plasma Technology Center, Institute for Advanced Engineering)
Uhm, Han-S (Plasma Technology Center, Institute for Advanced Engineering)
Kim, Hyoung-Suk (Plasma Technology Center, Institute for Advanced Engineering)
Publication Information
Elastomers and Composites / v.39, no.1, 2004 , pp. 3-11 More about this Journal
Abstract
Plasma treatment is frequently used to increase surface functionality and surface activity. It enables to improve various surface properties such as catalytic selectivity, printability, and interfacial adhesion between various materials. Surface or the ethylene-vinyl acetate (EVA) is exposed under an atmospheric pressure plasma torch (APPT), generated by dielectric barrier discharge (DBD), and the treated surfaces are systemically investigated. Argon, air, and oxygen are used as a processing gas. Properties of the treated EVA surfaces are investigated by the zeta-potential measurements and surface free energies. It is shown that the plasma treatment leads to a drastic increase of surface functional groups of EVA, as the increase of its adhesion energy ($G_{IC}$). Therefore, it is concluded that the APPT process is an effective means to improve adhesion of EVA and polyurethane (PU).
Keywords
atmospheric pressure plasma; surface treatment; surface properties; mechanical properties; adhesion;
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