Gamage, Sudesh Jayashantha Pothupitiya Yang, Kihun Braveenth, Ramanaskanda Raagulan, Kanthasamy Kim, Hyun Suk Lee, Yun Seon Yang, Cheol-Min Moon, Jai Jung Chai, Kyu Yun 2024-01-20T00:01:48Z 2024-01-20T00:01:48Z 2021-09-03 2017-12 1996-1944 https://pubs.kist.re.kr/handle/201004/121983 A series of multi-walled carbon nanotube (MWCNT) coated carbon fabrics was fabricated using a facile dip coating process, and their performance in electrical conductivity, thermal stability, tensile strength, electromagnetic interference (EMI) and shielding effectiveness (SE) was investigated. A solution of MWCNT oxide and sodium dodecyl sulfate (SDS) in water was used in the coating process. MWCNTs were observed to coat the surfaces of carbon fibers and to fill the pores in the carbon fabric. Electrical conductivity of the composites was 16.42 S cm(-1). An EMI shielding effectiveness of 37 dB at 2 GHz was achieved with a single layer of C/C composites, whereas the double layers resulted in 68 dB EMI SE at 2.7 GHz. Fabricated composites had a specific SE of 486.54 dB cm(3) g(-1) and an absolute SE of approximately 35,000 dB cm(2) g(-1). According to the above results, MWCNT coated C/C composites have the potential to be used in advanced shielding applications such as aerospace and auto mobile electronic devices. English MDPI AG ELECTRICAL-CONDUCTIVITY FOAM COMPOSITES NANOTUBES NANOFIBERS MWCNT Coated Free-Standing Carbon Fiber Fabric for Enhanced Performance in EMI Shielding with a Higher Absolute EMI SE Article 10.3390/ma10121350 1 MATERIALS, v.10, no.12 MATERIALS 10 12 scie scopus 000419207800010 2-s2.0-85035025429 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Physics, Applied Physics, Condensed Matter Chemistry Materials Science Metallurgy & Metallurgical Engineering Physics Article ELECTRICAL-CONDUCTIVITY FOAM COMPOSITES NANOTUBES NANOFIBERS MWCNT carbon fiber fabric EMI shielding absolute EMI SE