The sensitive electrical response of reduced graphene oxide–polymer nanocomposites to large deformation |
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| Affiliation: | 1. Material Technology Programme, Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300 Kuantan, Pahang, Malaysia;2. Center of Foundation Studies in Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Advanced Polymeric Materials Research Lab, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government-Iraq, Iraq;4. Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Kurdistan Regional Government, Iraq;1. Laboratorio de Superficies and Nanomaterials, Universidad de Chile, Santiago, Chile;2. Sede Vallenar, Universidad de Atacama, Costanera #105, Vallenar, Chile;3. Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India;4. SSN Research Centre, SSN College of Engineering, Kalavakkam, 603110 Chennai, Tamil Nadu, India;5. Department of Physics, Rajah Serfoji Government College (Autonomous) [Affiliated to Bharathidasan University], Thanjavur 613005, Tamil Nadu, India;6. ECE Department, Alagappa Chettiar Government College of Engineering & Technology, Karaikudi, India;1. School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China;2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China |
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| Abstract: | In this paper, the reduced graphene oxide (rGO)–polymer nanocomposite films were prepared by two comparable methods, and their electrical performances at large deformation were measured and analyzed. It is concluded that the gauge factor (GF) value of strain-sensing composite strongly depends on rGO’s content and preparing process. The composites with rGO’s content between percolation threshold and the content which rGO conducting as a complete network show better sensitive electrical response. What’s more, strong interface interaction between conducting filler and matrix benefits the improvement of GF value. The composites we prepared display significant and consistent changes in their GF values when subjected to large deformation, which are suitable for large structural deformation monitoring in advanced civil engineering. |
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| Keywords: | A Thin films B Plastic deformation B Electrical properties C Analytical modeling |
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