Plasma treatments contact angle images

SEM images show that silicone has filled and sealed the inter-monofilament pores and voids and indicates that the PEG silicone surfactants coating the fabrics were decomposed after plasma treadnent. The cleaved products coating the nylon fabric appear to be distributed very uniformly. This phenomenon is consistent with the results of the contact angle measuranents cleavage of the prepared surfactants leads to water-insoluble silanol moieties and two water-soluble products this process imparts excellent water repellency to the nylon fabric. Zhang et al. (2003) determined antibacterial properties qualitatively through measurements of areas from which S. aureus and K. pneumonia have been eradicated. The silicone coat at the eradicated area is not transparent. Biocidal treatments with both the silicone and PEG 2000 silicone surfactants improved the antibacterial properties of the nylon fabrics. The results we obtained before and alter plasma treatment were similar, especially for S. aureus. Thus, the sample treated with PEG 2000 silicone retained its antibacterial activity and water repellency after plasma treatment (Lin et al., 2006). 

The difference between SFE values using contact angle measurements and test inks was most obvious in the case of plasma-treated samples. Tables 17.3a), b) and c) show the results for PDMS, PVC and PET before and after plasma treatment for different exposure times. We have documented the wetting patterns, i.e. images of brush strokes, for the test inks. 

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