Korean Journal of Materials Research, Vol.16, No.9, 543-549, September, 2006
대기압 RF DBD 방전으로 개질된 폴리이미드의 표면특성
Surface Properties of Polyimide Modified with He/O2/NF3 Atmospheric Pressure RF Dielectric Barrier Discharge
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Polyimides (PI) are treated with and atmospheric pressure rf dielectric barrier discharge in order to investigate the roles of that is one of the PI etching gases. Surface changes are analyzed by x-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and contact angle measurement. The surface roughness of PI and the ratio of C=O, which is hydrophilic functional group, is more increased by discharge than by discharge. The C=O species on the PI surface is increased up to 30 percent with rf power. The surface roughness of PI is increased from 0.4 to 11 nm with rf power. The water drop contact angles on PI, however, are reduced from by plasma treatment independently of .
Keywords:polyimide . surface modification;atmospheric pressure;dielectric barrier discharge;hydrophilic;surface roughness
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