title: Studies on poly(trimethylene terephthalate) filaments containing silver.
abstract: Two methods were used to incorporate silver ions into poly(trimethylene terephthalate) (PTT) fibers. The first technique involved the direct addition of silver (I) sulfadiazine into PTT polymer prior to extrusion. The second method involved the use of silver-exchanged zeolites. Although no optimization with silver-exchanged zeolites was conducted, this study clearly showed that PTT fibers containing sufficient amounts of silver ions are effective in reducing pathological-microorganisms such as Escherichia coli. Incorporation of silver-exchanged zeolites into PTT imparted a silver color to the fibers which may be attributed to the partial reduction of silver ions during spinning at 256 degrees C. Because of the decomposition of silver (I) sulfadiazine, the spinnability of PTT fiber sample was not satisfactory and, therefore, this compound cannot be used as a carrier of silver ions in PTT. The thermal, tensile and antimicrobial properties of the spun filaments are reported in this paper.
authors.affiliation: National Research Center, Dokki Cairo, Egypt.
authors.forename: Samiha Mohamed
authors.initials: SM
authors.lastname: Abo El Ola
authors.forename: Richard
authors.initials: R
authors.lastname: Kotek
authors.forename: Martin
authors.initials: M
authors.lastname: King
authors.forename: Joon Ho
authors.initials: JH
authors.lastname: Kim
authors.forename: Robert
authors.initials: R
authors.lastname: Monticello
authors.forename: John Allan
authors.initials: JA
authors.lastname: Reeve
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry / Q000494:pharmacology; D002152:Calorimetry, Differential Scanning; D004926:Escherichia coli / Q000187:drug effects; D008422:Materials Testing; D011093:Polyethylene Terephthalates / Q000737:chemistry* / Q000494:pharmacology; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology; D013718:Tensile Strength; D014783:Viscosity; D017641:Zeolites / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000890:Anti-Infective Agents; D001672:Biocompatible Materials; D011093:Polyethylene Terephthalates; C498323:poly(trimethylene terephthalate); D017641:Zeolites; D012834:Silver