Characterization of Plasma-Polymerized 4-vinyl pyridine on Poly(Ethylene Terephthalate) film for anti-microbial properties.
Publication: Research - peer-review › Article in proceedings – Annual report year: 2005
As an efficient way to create an anti-bacterial function on polymer surfaces, we have used plasma polymerisation to create a poly-4-vinyl-pyridine coating on the surface of a common polymer, PET, a polymerisation process that we have shown also works well on several other polymers. We have found a linear relation between the polymerisation time and the thickness of the surface layer. To further strengthen the antibacterial function the poly-4-vinyl-pyridine surface layer can act as the base for including nano particles of silver precipitated from a salt solution due to ultraviolet radiation. The mechanical strength of the bond between the substrate and the surface layer has been tested by several methods, and the antibacterial effect of the surface layer with and without silver nano particles has been estimated by measuring electrical resistance as a function of time. The bacteria investigated were the bacteria E. coli as well as some other micro organisms relevant for one of the intended uses, food packaging.
|Title of host publication||Polymers for advanced technologies|
|Publisher||Institut for Produktion og Ledelse, DTU|
|Conference||8th International Symposium on Polymers for Advanced Technologies|
|Period||13/09/05 → 16/09/05|
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