Conductive Behaviour of orthogonal fabric

Abstract

Electromagnetic Shielding (EMS) has become a necessity of the present era due to the enormous expansion in electronic devices accountable for emitting electromagnetic radiation. EMS has been established with soft and lightweight features and found a variety of applications in industries, military, and civilian. This study involves manufacturing a Three-Dimensional Orthogonal Woven (3DOW) hybrid conductive fabric to be potentially used in an electromagnetic shielding field. 3DOW fabric consisting of copper filament-based core-sheath hybrid yarn to obtain maximum shielding effect. Hybrid yarns produced using the DREF-III spinning technique have copper filament in the core and sheathing by Polyphenylene Sulfide (PPS), Polyester and Acrylic stable fibers. The special arrangement with CCI looms successfully produced Three Dimensional orthogonal fabric. The orthogonal fabric samples are tested in an electromagnetic frequency region of 8-18 GHz using Free Space Measurement System (FSMS) to estimate absorbance, reflectance, and transmittance. The evaluated properties for the manufactured 3D woven fabrics were mainly the Reflectance (S11), and Transmittance (S21) parameters used to estimate the fabricated properties of electromagnetic shielding efficiency. Hybrid yarn parameters such as Polyphenylene Sulfide, Polyester, Acrylic and copper filament diameter, and linear yarn density considerably affect electromagnetic shielding. It has been observed that the copper/Polyphenylene Sulfide core-sheath hybrid yarn attributes affect the EMS performance of the manufactured fabrics. 3DOW fabric s electromagnetic shielding effect increase with the diameter of copper core filament, as does PPS yarn s diameter, showing a good trend toward shielding. The electromagnetic shielding performance in a parallel direction, having a hybrid conductive yarn, showed substantial resu