A composite RAS with an enhanced uniformity of absorbing performance using a MWCNT-anchored aramid fiber. (10th November 2020)

• Record Type: Journal Article
• Authors: Cheon, Jinsil; Lim, Sung Jun; Kim, Minkook
• Is Part Of: Composites science and technology. Volume 200(2020)
• Publication Date: 2020-11-10
• Subjects: Radar absorbing structure (RAS) -- Aramid fibre -- Electrical properties -- Smart materials -- Polymer-matrix composites (PMCs); Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2020.108442
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Radar absorbing structures (RASs) contain a glass or aramid fiber-reinforced polymer (GFRP or AFRP) with carbon nanomaterials mixed with matrix. The main problem encountered by composite RASs is a non-uniformity in the performance due to agglomerated nanomaterials. In this study, RASs were developed that contained an AFRP with MWCNT-anchored para -aramid fibers to improve the performance uniformity. The topography of the MWCNT dispersion on the composites was analyzed by SEM. The reflection loss (RL) in the X-band range, dielectric properties, electrical properties and performance uniformity of the RAS composites were investigated. Finally, the optimum MWCNT concentration and incorporation method are presented. Graphical abstract: Image 1