301 環境保全型大気圧低温プラズマ重合処理によるフッ素薄膜の接着性向上技術(水域環境保全技術,大気・水環境保全技術)

概要

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Flexible thin solid films made of fluorocarbon polymers such as PTFE, PFA and PCTFE. have excellent properties on flexibility, gas and moisture barriers, etc. Many electrical devise applications on such as multi-layer flexible electric circuit and flexible displays with long life are possible if the adhesion property can be improved. We developed a surface modification technique of the films for adhesion using atmospheric-pressure nonthermal plasma application followed by the graft-polymerization of hydrophilic monomer. It was confirmed that the transparent hydrophilic layer whose thickness is an order of 100nm are created on the film surface. Results of T-type peeling test shows that peeling strength is thirty times larger than that for untreated one. The SEM picture shows very smooth and flat surface. It is confirmed from the XPS surface analysis that few F atoms exist on the surface and hydrophilic layer is confirmed due to the grafting.
2007-07-18