engleski

Impact of Dry and Wet Cleaning on Structural, Mechanical and Protective Properties of Fabrics Designed for Electromagnetic Shield Application

The basic requirement on protective textiles is stability and durability of functional properties under application conditions where textiles are exposed to mechanical and chemical influences. The aim of this study is the investigation of structural parameters, mechanical and functional properties of fabrics designed for electromagnetic shield applications before and after wet and dry cleaning cycles. Three fabrics were selected, two of them coated with a copper and one with stainless steel woven thread in the weft direction. Measurement of thickness, surface area, dimensions and breaking force of all samples before and after 5 and 10 cycles was done by standard methods. The surface of copper-coated samples before and after 5 and 10 dry and wet cleaning cycles was observed by scanning electron microscopy. Shielding effectiveness (SE) against electromagnetic (EM) non-ionizing microwave radiation was monitored before and after professional care at frequencies of 0.9 GHz ; 1.8 GHz ; 2.1 GHz and 2.4 GHz. According to the obtained results, the cycles of dry and wet cleaning affect structural parameters, mechanical properties and shielding effectiveness of functional fabrics. The impact of dry and wet cleaning through 10 cycles on SE properties of fabric III (modacryl/cotton with Inox yarn) is less pronounced than on two copper coated fabrics. Changes in dimensions and breaking forces of fabrics have a relatively high degree of correlation.

Functional fabrics, Shield effect, Dry and wet cleaning, SEM, Structural and mechanical properties of fabrics

Bosiljka Šaravanja - glavni autor Tanja Pušić - glavni autor