Production of elastomer-based highly conductive hybrid nanocomposites and treatment with sulfuric acid
| Autor: | Hakan Bermek, Abuzer Alp Yetisgin, Levent Trabzon, Hazal Sakar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Microelectromechanical systems
Nanocomposite Materials science Polymers and Plastics Graphene General Chemical Engineering Sulfuric acid 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Elastomer 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Chemical engineering law Electrical resistivity and conductivity Materials Chemistry 0210 nano-technology Electrical conductor |
| Zdroj: | Journal of Polymer Engineering. 41:467-479 |
| ISSN: | 2191-0340 0334-6447 |
| DOI: | 10.1515/polyeng-2021-0040 |
| Popis: | As an elastomer, poly(dimethylsiloxane) (PDMS) is used in various applications such as wearable technology and sealants, and is especially preferred in microelectromechanical device production due to its advantage in fabrication of microstructures. However, some of its applications such as sensor-based or electrode-based are limited due to its insulator aspect. Various conductive nanomaterials such as carbon nanotubes (CNTs), graphene, graphite, carbon black, and silver nanoparticles were incorporated into the PDMS matrix for the production of conductive nanocomposites. In this study, we produced highly conductive PDMS nanocomposites by addition of multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) in a three-dimensional network. Due to the synergistic effect between CNTs and GNPs inside a polymeric matrix, we expected to obtain PDMS nanocomposites more conductive than nanocomposites with only CNTs. Additionally, we investigated the effect of sulfuric acid treatment on the electrical conductivity and surface composition of prepared PDMS/MWCNT/GNP nanocomposites. Results indicated that the electrical conductivity in sulfuric acid-treated samples was significantly higher than in untreated samples. Levels of conductivity in the range of 270.7–1074.8 S/m were achieved; the higher ones were the samples treated with sulfuric acid solution. |
| Databáze: | OpenAIRE |
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