Title
Surface Modification of Polymer Blends of Polyvinyl Chloride (PVC) and Poly Ethylene Terephthalate (PET) by Plasma Treatment
International Nuclear Information System (INIS)
Abstract
Blends of Polyvinyl chloride (PVC) and poly ethylene terephthalate (PET) films were exposed by reactive nitrogen gas plasma at different fluences 1013 to 1015 ions/cm2 to understand the effects of low energy ions on the surface modification of polymeric blends. These effects were studied by X-ray photoelectron spectroscopy (XPS), microhardness and atomic force microscopy (AFM) as a function of fluence. The XPS technique was used to study the polymer blend stoichiometry of near surface layers before and after the plasma treatment. The results show that the stoichiometric ratio of O, Cl and C-groups remains approximately constant with the depth for unimplanted samples. A relative enrichment of C occurred in the implanted samples. Scission of C-Cl and C=O bonds were observed. Hardness of the film increases significantly as fluence increases. The true bulk hardness of the film obtained at loads greater than 400 mN. The increase in hardness may be attributed to cross-linking effect. The atomic force microscopy (AFM) shows that the average roughness (Ra) of the film surfaces increases from 13.1 nm to 78.1 nm as fluence increases
For further details log on website :
http://worldwidescience.org/topicpages/p/polyvinyl+alcohol-polyacrylamide+blends.html#
Surface Modification of Polymer Blends of Polyvinyl Chloride (PVC) and Poly Ethylene Terephthalate (PET) by Plasma Treatment
International Nuclear Information System (INIS)
Abstract
Blends of Polyvinyl chloride (PVC) and poly ethylene terephthalate (PET) films were exposed by reactive nitrogen gas plasma at different fluences 1013 to 1015 ions/cm2 to understand the effects of low energy ions on the surface modification of polymeric blends. These effects were studied by X-ray photoelectron spectroscopy (XPS), microhardness and atomic force microscopy (AFM) as a function of fluence. The XPS technique was used to study the polymer blend stoichiometry of near surface layers before and after the plasma treatment. The results show that the stoichiometric ratio of O, Cl and C-groups remains approximately constant with the depth for unimplanted samples. A relative enrichment of C occurred in the implanted samples. Scission of C-Cl and C=O bonds were observed. Hardness of the film increases significantly as fluence increases. The true bulk hardness of the film obtained at loads greater than 400 mN. The increase in hardness may be attributed to cross-linking effect. The atomic force microscopy (AFM) shows that the average roughness (Ra) of the film surfaces increases from 13.1 nm to 78.1 nm as fluence increases
For further details log on website :
http://worldwidescience.org/topicpages/p/polyvinyl+alcohol-polyacrylamide+blends.html#
No comments:
Post a Comment