Investigation of electrical conductivity and electromagnetic interference shielding effectiveness of preferentially distributed conductive filler in highly flexible polymer blends nanocomposites. (March 2019)

• Record Type: Journal Article
• Authors: Ravindren, Revathy; Mondal, Subhadip; Nath, Krishnendu; Das, Narayan Ch.
• Is Part Of: Composites. Volume 118(2019)
• Page Start: 75
• Page End: 89
• Publication Date: 2019-03
• Subjects: Polymer blend -- Multi-walled carbon nanotubes -- Double percolation -- Electrical conductivity -- EMI shielding; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2018.12.012
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: Motivated by the impact of electromagnetic radiation on electronic gadgets and living beings, herein we developed a light weight flexible EMI shielding material to meet the demands of consistently developing technology. In the present study, we utilized the concept of preferential distribution and double percolation to fabricate a conductive polymer composite that absorbs EM radiation. We employed EMA/EOC (50/50) wt% binary blend as the polymer matrix and MWCNT as the functional filler. With the addition of 3 wt% MWCNT, the composite demonstrated a shielding efficiency of −18.66 dB and with 15 wt% MWCNT, a total shielding efficiency of −34.06 dB was attained combined with good mechanical and thermal properties. We believe this work provides an insight in developing a scalable and affordable EMI shield finding its potential in both academic and industrial application.