Tuning the Network Structure of Graphene/Epoxy Nanocomposites by Controlling Edge/Basal Localization of Functional Groups
| Autor: | Milad Kamkar, Behnaz Ranjbar, Ali Jannesari, Uttandaraman Sundararaj, Amir Rezvani Moghaddam, Zahra Ranjbar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymer nanocomposite General Chemical Engineering Oxide 02 engineering and technology Industrial and Manufacturing Engineering law.invention chemistry.chemical_compound symbols.namesake 020401 chemical engineering law 0204 chemical engineering Nanosheet chemistry.chemical_classification Nanocomposite Graphene General Chemistry Epoxy Polymer 021001 nanoscience & nanotechnology Chemical engineering chemistry visual_art visual_art.visual_art_medium symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | Industrial & Engineering Chemistry Research. 58:21431-21440 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | Successful formation of a three-dimensional (3D) network of incorporated conductive fillers in a polymer matrix leads to achieve an electrically conductive nanocomposite at low filler loading levels. In this work, one- to three-layer edge and basal-functionalized graphene oxide (GO) nanosheets were synthesized via a novel method. Raman spectroscopy was employed to investigate the localization of oxygen-containing groups through the GO nanosheets. Afterward, the synthesized GO nanosheets were dispersed in an aqueous epoxy suspension to produce electrically conductive polymer nanocomposites. The formation of the interconnected 3D network structure of GO nanosheets through the epoxy matrix was studied by employing rheological approaches and imaging techniques. We postulated that oxygen-containing groups’ localization can effectively impact the polymer–GO nanosheet interactions, which, in turn, affect the 3D network formation of the nanosheets through the polymeric medium. After in situ thermal reduction of p... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|