Preparation and Electromagnetic Shielding Effectiveness Evaluations of Stainless Steel/Polyester Composite Textiles

Jia-Horng Lin, Ting An Lin, Chien-Teng Hsieh, Yi-Jun Pan, Zheng-Ian Lin, Ching-Wen Lou


Electrically conductive stainless steel wire and synthetic polyester filament are selected as the materials for this study. Composite wrapped yarns and composite woven fabrics are successfully manufactured by* wrapping and weaving processes. The breaking strength, tenacity, elongation and work of composite wrapped yarns exhibit the optimum value at 7-D, 7-S, 14-S and 14-D, which the corresponding value are 149.3(N), 1.6(cN/dtex), 19.5(%) and 46.7(N*cm), respectively. The surface resistivity of 4 composite woven fabrics presents similar results with various weft yarns that are composed of various wrapped counts and wrapped layers. Electromagnetic shielding effectiveness (EMSE) of composite woven fabric, which varied laminated angles and laminated numbers, significantly reveal different results. The EMSE of composite woven fabrics is considerably enhanced after varying laminated angles of 45° or 90° and laminated numbers, and that of composite woven fabric (14-D-W) with a laminated angle of 90°and a laminated number 3 shows the optimum value -46 dB at 2450 MHz.


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