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Iodine Plasma Surface Texturing of Plastics

IP.com Disclosure Number: IPCOM000045942D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Cuomo, JJ: AUTHOR [+4]

Abstract

Polymer surfaces can be textured to increase their usefulness in different applications, such as optical recording, antireflection coatings, surface adhesion, and also applications for solar absorption surfaces. Polymers are textured using iodine plasmas and applied discontinuous coatings prior to plasma treatment.

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Iodine Plasma Surface Texturing of Plastics

Polymer surfaces can be textured to increase their usefulness in different applications, such as optical recording, antireflection coatings, surface adhesion, and also applications for solar absorption surfaces. Polymers are textured using iodine plasmas and applied discontinuous coatings prior to plasma treatment.

In a first step, the plasma surface is coated with a discontinuous layer of a material having a different reaction rate than the polymer. Second, the coated polymer is treated with an RF-stimulated iodine plasma. The reactive plasma etching produces chemical changes in the coated polymer surface due to the positive and negative iodine ions in the discharge. The polymer will be preferentially attacked more readily than the overlying discontinuous layer and in this manner will cause a textured surface.

In this process, the emission products are less noxious than the emission products when polymers are textured by an oxygen plasma. Also, both the reactant (I/2/) and the volatile products are readily condensible and removable prior to their escape into the pumping components. The texturing time for I/2/ is about l-l0 minutes.

Improved bonding due to the texturing should also result.

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