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Oxygen plasma exposure

Fig. 8 Increase of wavelength (filled triangles) and amplitude (open circles) of the wrinkles with increasing plasma dose (oxygen plasma exposure time multiplied by plasma power). The values were evaluated by quantitative FFT-analysis applied to AFM height-images... Fig. 8 Increase of wavelength (filled triangles) and amplitude (open circles) of the wrinkles with increasing plasma dose (oxygen plasma exposure time multiplied by plasma power). The values were evaluated by quantitative FFT-analysis applied to AFM height-images...
Figure 6. Auger spectra of PBS surface post (a) no plasma exposure (b) 3 minute oxygen plasma exposure and (c) 3 minute oxygen plasma and 90 second fluorocarbon plasma exposure. Figure 6. Auger spectra of PBS surface post (a) no plasma exposure (b) 3 minute oxygen plasma exposure and (c) 3 minute oxygen plasma and 90 second fluorocarbon plasma exposure.
Figure 8. PBS thickness removed vs time in fluorocarbon plasma post 3 minute oxygen plasma exposure. Figure 8. PBS thickness removed vs time in fluorocarbon plasma post 3 minute oxygen plasma exposure.
Figure 1. STM images of the HOPG surface following oxygen plasma exposure to develop porosity. Treatment conditions (a) MW power of 40 W, 6 s. (b-d) MW power of 100 W, 9 min. Figure 1. STM images of the HOPG surface following oxygen plasma exposure to develop porosity. Treatment conditions (a) MW power of 40 W, 6 s. (b-d) MW power of 100 W, 9 min.
The optical micrographs in Figure 5 show the effect of oxygen plasma exposure to pure nylon 6 and a nylon 6/7.5wt% layered silicate nanocomposite. Both are melt-processed samples recast from the 1,1,1,3,3,3-hexa-fluoro-2-propanol solution. The nylon 6 sample experiences almost complete deterioration after 8 hours (480 minutes) of continuous exposure. In contrast, deterioration of the nanocomposite is minimal, with no significant decrease in thickness. Buckling of the nanocomposite sample after exposure arises from differences in thermal expansivity of the self-generating ceramic surface and the bulk polymer nanocomposite. [Pg.90]

Performance of Polyethersulfone Hollow Fiber Membranes Spun from N-methylpyrrolidone/Formamide as Function of Oxygen Plasma Exposure Time... [Pg.93]

Fig. 10 SEM Photomicrographs of the Outer Edge of an Asymmetric Polyethersulfone Hollow Fiber Membrane spun from N-methylpyrrolidone/Formamide at 20K Magnification after Oxygen Plasma Exposure (a) one minute, (b) three minutes, and (c) five minutes... Fig. 10 SEM Photomicrographs of the Outer Edge of an Asymmetric Polyethersulfone Hollow Fiber Membrane spun from N-methylpyrrolidone/Formamide at 20K Magnification after Oxygen Plasma Exposure (a) one minute, (b) three minutes, and (c) five minutes...
Plasma treatment of PE and PP disposable Petri or assay dishes greatly enhances wetting. Contact angles as low as 22° have been demonstrated for these materials after only a few minutes of oxygen plasma exposure. [Pg.66]

Exposure of the polyimide to an oxygen plasma for times as short as I s... [Pg.275]

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