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Adami R, Lamberti P, Casa M, D'Avanzo N, Ponticorvo E, Cirillo C, Sarno M, Bychanok D, Kuzhir P, Yu C, Xia H, Ciambelli P. Synthesis and Electrical Percolation of Highly Amorphous Polyvinyl Alcohol/Reduced Graphene Oxide Nanocomposite. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114060. [PMID: 37297195 DOI: 10.3390/ma16114060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 04/25/2023] [Accepted: 05/05/2023] [Indexed: 06/12/2023]
Abstract
Polyvinyl alcohol is the most commercially water-soluble biodegradable polymer, and it is in use for a wide range of applications. It shows good compatibility with most inorganic/organic fillers, and enhanced composites may be prepared without the need to introduce coupling agents and interfacial modifiers. The patented high amorphous polyvinyl alcohol (HAVOH), commercialized with the trade name G-Polymer, can be easily dispersed in water and melt processed. HAVOH is particularly suitable for extrusion and can be used as a matrix to disperse nanocomposites with different properties. In this work, the optimization of the synthesis and characterization of HAVOH/reduced graphene oxide (rGO) nanocomposite obtained by the solution blending process of HAVOH and Graphene Oxide (GO) water solutions and 'in situ' reduction of GO is studied. The produced nanocomposite presents a low percolation threshold (~1.7 wt%) and high electrical conductivity (up to 11 S/m) due to the uniform dispersion in the polymer matrix as a result of the solution blending process and the good reduction level of GO. In consideration of HAVOH processability, the conductivity obtained by using rGO as filler, and the low percolation threshold, the nanocomposite presented here is a good candidate for the 3D printing of a conductive structure.
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Affiliation(s)
- Renata Adami
- Department of Physics, University of Salerno, 84084 Fisciano, Italy
- Centre NANO_MATES, University of Salerno, 84084 Fisciano, Italy
| | - Patrizia Lamberti
- Centre NANO_MATES, University of Salerno, 84084 Fisciano, Italy
- Department of Information and Electrical Engineering and Applied Mathematics, University of Salerno, 84084 Fisciano, Italy
| | - Marcello Casa
- Narrando Srl, Via Arcangelo Rotunno 43, 84134 Salerno, Italy
| | - Nicole D'Avanzo
- Department of Information and Electrical Engineering and Applied Mathematics, University of Salerno, 84084 Fisciano, Italy
| | | | - Claudia Cirillo
- Department of Physics, University of Salerno, 84084 Fisciano, Italy
| | - Maria Sarno
- Department of Physics, University of Salerno, 84084 Fisciano, Italy
- Centre NANO_MATES, University of Salerno, 84084 Fisciano, Italy
| | - Dzmitry Bychanok
- Research Institute for Nuclear Problems Belarusian State University, 220030 Minsk, Belarus
| | - Polina Kuzhir
- Department of Physics and Mathematics, University of Eastern Finland, 80101 Joensuu, Finland
| | - Changjiang Yu
- State Key Lab of Polymer Material Engineering, Sichuan University, Chengdu 610065, China
| | - Hesheng Xia
- State Key Lab of Polymer Material Engineering, Sichuan University, Chengdu 610065, China
| | - Paolo Ciambelli
- Narrando Srl, Via Arcangelo Rotunno 43, 84134 Salerno, Italy
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
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