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The primary effect of ion beam treatment therefore is morphology modification, with little chemical effect. Longer ion beam treatment time is assumed to increase surface area for bonding, which in turn increases peel strength. [6] Laser surface roughening of PTFE has also been studied as a potential method for increasing bond strength to PTFE.
There are surface treatments for PTFE that alter the surface to allow adhesion to other materials. Because of its chemical and thermal properties, PTFE is often used as a gasket material within industries that require resistance to aggressive chemicals such as pharmaceuticals or chemical processing. [37]
Teflon is a brand of PTFE, often used as a generic term for PTFE. The metallic substrate is roughened by abrasive blasting, then sometimes electric-arc sprayed with stainless steel. [8] [9] The irregular surface promotes adhesion of the PTFE and also resists abrasion of the PTFE. [10] Then one to seven layers of PTFE are sprayed or rolled on.
Plasma treatment has been used for various biological evaluation studies to increase the surface energy of biomaterial surfaces, as well as cleaning. [8] Plasma treatment has also been proposed for sterilization of biomaterials for potential implants. [9] Schematic of cleaning of a polymer surface using glow plasma discharge.
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Surface treatment of PTFE This page was last edited on 20 March 2023, at 15:48 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...