 ISSN 0235-7216 ISSN 2424-4538 (online) |
2009 m. Nr. 2 Modification of polyester textile by conductive copper sulfide layers
A copper sulfide layer has been prepared on the surface of polyester textile by using a solution of elemental rhombic (α) sulfur in carbon disulfide and copper (II / I) salt solution. The influence of sulfur concentration in carbon disulfide, the temperature of the solutions and the time of treatment on sulfur and copper concentrations in samples was studied. Conducting copper sulfide layers were obtained when the polyester textile was sulfurized in a 3 mol/dm3 solution of sulfur in carbon disulfide at a temperature of 20 °C and when the duration of sulfurization was 1–3 min. CuxS layers of the minimal surface resistance 102–104 Ω on polyester textile were formed when this sulfurized polymeric material was treated with copper(II / I) salt solution at a temperature of 80 °C. By X-ray diffraction studies it has been shown that copper sulfide layers on the surface of polyester textile consist of two phases: yarrowite and digenite. Non-reacted elemental sulfur is present on polyester textile, too. A simple way of obtaining copper sulfides on polyester textile is reported. Keywords: polyester textile, sulfurization, conductive layer |
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