Atmospheric Plasma Hybrid Surface Treatment for Fluoropolymer Plastics (Toward Applications for Medical Devices, Biocompatible Materials, and Electronic Devices)

摘要

A surface modification technique that improves the adhesion of fluorocarbon polymer films such as polytetrafluoroethylene (PTFE) is developed using argon at atmospheric pressure and acrylic acid vapor nonthermal plasma. From results of peeling tests, XPS analyses, and SEM photographs, it is confirmed that chemical bonds with F atoms decrease greatly on the surface and that a hydrophilic layer is formed due to the process. Using the present surface treatment apparatus, it is possible to bond A4-sized sheets of PTFE and metals or rubbers without losing the excellent physical properties of PTFE.