Title The modification of polyethylene (PE) and polyester textile (PES) by the conducting copper sulfide layers
Another Title Polietileno plėvelės ir poliesterinio audinio modifikavimas elektrai laidžiais vario sulfidų sluoksniais.
Authors Janickis, Vitalijus ; Ancutienė, Ingrida ; Žukauskaitė, Jūratė
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Is Part of Materials science = Medžiagotyra.. Kaunas : Technologija. 2007, vol. 13, no. 2, p. 132-140.. ISSN 1392-1320. eISSN 2029-7289
Keywords [eng] Polyethylene ; Polyester textile ; Sulfurization ; Copper sulfide layers
Abstract [eng] It is shown that low density polyethylene film and polyester textile can be effectively sulfurized in the solutions of elemental rhombic (α) sulfur in carbon disulfide. The concentration of sulfur in polyethylene and polyester textile increases with the increase of temperature and concentration of sulfur solution in carbon disulfide. However, it little depends on the duration of treatment since the sulfur adsorption-diffusion on/into polymer takes place very fast – during the first 3 – 5 min of sulfurization. Copper sulfide layers in the surface of polyethylene and polyester textile were formed when these sulfurized polymeric materials were treated with the solution of copper (I–II) salts. The CuxS layers with the lowest electrical resistance and of good adhesion with the polymer were obtained when the polyethylene was sulfurized in the 5.7 mol/dm3 and polyester textile – in 3 mol/dm3 solution of sulfur in carbon disulfide at the temperature of 20 °C, and when the duration of sulfurization was 1 min – 3 min. The CuxS layers of the minimal sheet resistance 11.2 Ω/ on polyethylene and surface resistivity 102 – 104 Ω on polyester textile were formed when these sulfurized polymeric materials were treated with copper salts solution at the temperature of 80 °C. The phase composition of CuxS layers obtained was studied by means of potentiometric measurements and X-ray diffraction. The potentiometric measurements showed that the values of CuxS layers electrode potentials decrease with the prolongation of sulfurized polymeric material treatment time in the copper(I-II) salt solution at the temperature of 80 °C: from 230 mV to 145 mV – of CuxS on polyethylene and from 212 mV to 205 mV – of CuxS on polyester textile. [...].
Published Kaunas : Technologija
Type Journal article
Language English
Publication date 2007
CC license CC license description