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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 6, 2005
Accepted May 20, 2005

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Adhesion Enhancement of Polyurethane Coated Leather and Polyurethane Foam with Plasma Treatment

Soo Duk Seul Jong Min Lim Sun Hee Ha Young Han Kim^†

Dept. of Chemical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Busan 604-714, Korea

Korean Journal of Chemical Engineering, September 2005, 22(5), 745-749(5), 10.1007/BF02705793

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Abstract

Plasma pretreatment was applied to polyurethane-coated leather and polyurethane foam to improve adhesion. The optimum condition of the treatment was examined, and its performance was compared with conventional treatment techniques. In addition, optical observation was conducted to investigate the surface change from the treatment. In the case of polyurethane-coated leather, longer treatment time gives better adhesion, but a ten-second treatment works best for polyurethane foam due to its low contact angle. Excessive oxygen flow during plasma treatment does not enhance performance. It is shown that the plasma treatment reduces the contact angle to result in an improvement of peel strength. Also, optical observation indicates surface change and wettability increase.

Keywords

Plasma Treatment Low Pressure Plasma Adhesion Microwave Excitation Contact Angle

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