Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting
The 6th element of the periodic table is undoubtedly one of the most incredible aspects of creation. Graphene has a 2-D sheet structure comprised of strong covalent bonds between sp2 hybridized carbon atoms and has attracted much research interest because of its unique physicochemical properties. Ho...
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Budapest University of Technology and Economics
2022-09-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0011960&mi=cd |
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| author | Vineet Kumar Tapas Kumar Mandal Anuj Kumar Md Najib Alam Nargish Parvin Sang Woo Joo Dong Joo Lee Sang-Shin Park |
| author_facet | Vineet Kumar Tapas Kumar Mandal Anuj Kumar Md Najib Alam Nargish Parvin Sang Woo Joo Dong Joo Lee Sang-Shin Park |
| author_sort | Vineet Kumar |
| collection | DOAJ |
| description | The 6th element of the periodic table is undoubtedly one of the most incredible aspects of creation. Graphene has a 2-D sheet structure comprised of strong covalent bonds between sp2 hybridized carbon atoms and has attracted much research interest because of its unique physicochemical properties. However, the controlled syntheses of mono-layered and few-layered graphene remain topics of research concern. In the present work, chemically reduced graphene oxide (CRGO) was synthesized by ‘top-down’ using the modified Hummers’ method. CRGO and room-temperature-vulcanized silicone rubber (RTV-SR) were mixed to prepare composites with different CRGO loadings. We found that as little as 2 per hundred parts of rubber [phr] CRGO in RTV-SR transformed the normally rigid RTV-SR into a soft composite with a hardness decrease to 15. Moreover, the compressive modulus falls to 0.6 MPa. However, the dissipation losses decrease at 2 phr CRGO, which is a good property. For tensile mechanical properties, the fracture strain increases to 100% while tensile strength falls sharply to 0.1 MPa. Moreover, the electrical conductivity increases as the amount of CRGO increases. So, composite with soft nature and higher electrical properties are useful for various applications such as soft robotics or soft piezoelectric energy harvesting. In this work, the piezoelectric energy harvesting was performed by monitoring the output voltages generated. Output voltages were stable for RTV-SR but increased with increasing cycle number for RTV-SR/CRGO-based composites. This study provides insights into the use of soft RTV-SR/CRGO composites for soft robotics, actuation, energy harvesting, and vehicle applications. |
| format | Article |
| id | doaj-art-0afe42cde82f4093b948badc9fc1f73f |
| institution | Matheson Library |
| issn | 1788-618X |
| language | English |
| publishDate | 2022-09-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-0afe42cde82f4093b948badc9fc1f73f2025-07-02T01:21:57ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2022-09-0116997899510.3144/expresspolymlett.2022.71Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvestingVineet KumarTapas Kumar MandalAnuj KumarMd Najib AlamNargish ParvinSang Woo JooDong Joo LeeSang-Shin ParkThe 6th element of the periodic table is undoubtedly one of the most incredible aspects of creation. Graphene has a 2-D sheet structure comprised of strong covalent bonds between sp2 hybridized carbon atoms and has attracted much research interest because of its unique physicochemical properties. However, the controlled syntheses of mono-layered and few-layered graphene remain topics of research concern. In the present work, chemically reduced graphene oxide (CRGO) was synthesized by ‘top-down’ using the modified Hummers’ method. CRGO and room-temperature-vulcanized silicone rubber (RTV-SR) were mixed to prepare composites with different CRGO loadings. We found that as little as 2 per hundred parts of rubber [phr] CRGO in RTV-SR transformed the normally rigid RTV-SR into a soft composite with a hardness decrease to 15. Moreover, the compressive modulus falls to 0.6 MPa. However, the dissipation losses decrease at 2 phr CRGO, which is a good property. For tensile mechanical properties, the fracture strain increases to 100% while tensile strength falls sharply to 0.1 MPa. Moreover, the electrical conductivity increases as the amount of CRGO increases. So, composite with soft nature and higher electrical properties are useful for various applications such as soft robotics or soft piezoelectric energy harvesting. In this work, the piezoelectric energy harvesting was performed by monitoring the output voltages generated. Output voltages were stable for RTV-SR but increased with increasing cycle number for RTV-SR/CRGO-based composites. This study provides insights into the use of soft RTV-SR/CRGO composites for soft robotics, actuation, energy harvesting, and vehicle applications.http://www.expresspolymlett.com/letolt.php?file=EPL-0011960&mi=cdpolymer compositeschemically reduced graphene oxidesilicone rubber |
| spellingShingle | Vineet Kumar Tapas Kumar Mandal Anuj Kumar Md Najib Alam Nargish Parvin Sang Woo Joo Dong Joo Lee Sang-Shin Park Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting eXPRESS Polymer Letters polymer composites chemically reduced graphene oxide silicone rubber |
| title | Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting |
| title_full | Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting |
| title_fullStr | Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting |
| title_full_unstemmed | Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting |
| title_short | Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting |
| title_sort | multifunctional properties of chemically reduced graphene oxide and silicone rubber composite facile synthesis and application as soft composites for piezoelectric energy harvesting |
| topic | polymer composites chemically reduced graphene oxide silicone rubber |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0011960&mi=cd |
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