Multiwalled carbon nanotube/cement composites with exceptional electromagnetic interference shielding properties |
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| Affiliation: | 1. Polymeric & Soft Materials Section, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi 110 012, India;2. Materials Physics and Engineering Division, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi 110 012, India;3. Physics of Energy Harvesting Division, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi 110 012, India;4. Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India;5. Physics and Engineering of Carbon, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi 110 012, India;1. CSIR-National Physical Laboratory, New Delhi 110 012, India;2. Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005, United States;3. TIFR-Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500 075, India;4. Advanced Functional Thin Films Department, Surface Technology Division, Korea Institute of Materials Science, Gyeongnam 642831, Republic of Korea;5. Department of Physics, University of Rajasthan, Jaipur 302 055, India;6. Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India;1. State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China;2. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;3. School of Science, Wuhan University of Technology, Wuhan 430070, China;1. Sapienza University of Rome, Department of Astronautics, Electric and Energy Engineering, Via Salaria 851, 00138 Rome, Italy;2. Università Politecnica delle Marche, Dipartimento di Ingegneria dell’Informazione, Via Brecce Bianche 12, 60125 Ancona, Italy;3. Università Politecnica delle Marche, Dipartimento di Scienze e Ingegneria della Materia, dell’Ambiente ed Urbanistica – SIMAU, Via Brecce Bianche 12, 60131 Ancona, Italy;1. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China;2. School of Civil Engineering, Tianjin University, Tianjin 300000, China;3. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;4. Department of Mechanical Engineering, New York Institute of Technology, New York, NY 11568, USA;5. School of Machinery and Automation, Wuhan University of Science and Technology, Wuhan, 430081 China;6. Department of Mechanical and Industrial Engineering, University of Minnesota Duluth, Duluth, MN 55812, USA;1. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China;2. School of Transportation and Logistics, Dalian University of Technology, Dalian 116024, China;3. Department of Mechanical Engineering, New York Institute of Technology, New York, NY 11568, USA;4. School of Machinery and Automation, Wuhan University of Science and Technology, Wuhan 430081, China;5. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Multi-walled carbon nanotube (MWCNT)/portland cement(PC) composites have been fabricated to evaluate their electromagnetic interference (EMI) shielding effectiveness (SE). The results show that they can be used for the shielding of EMI in the microwave range. The incorporation of 15 wt.% MWCNTs in the PC matrix produces a SE more than 27 dB in X-band (8.2–12.4 GHz), and this SE is found to be dominated by absorption. Furthermore, the structural analysis, surface morphology and surface interaction of MWCNTs with PC matrix have been explored using XRD, SEM and X-ray photoelectron spectroscopy technique. |
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