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Article: Plasma treatment: the better bond. (plastic processing)
- Article from:
- Plastics Technology
- Article date:
- October 1, 1992
- Author:
CopyrightCOPYRIGHT 1992 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Plasma treating of plastic surfaces prior to coating or bonding is no longer a closely held secret, nor is it still limited to small parts. Now plasma is scaling up for larger automotive and medical applications.
Plasma--a kind of spooky state of matter in which gas molecules come apart and become intensely reactive--is coming into its own as a surface preparation prior to printing, bonding and coating plastic parts. Such treatment makes part surfaces harder, rougher, more wettable, less wettable, or easier to print on or stick to. Plasma is also used to treat film and even powder additives like pigments and fillers to make them more dispersible.
Plasmas were ...