Fabrication of functionalized graphene oxide/maleic anhydride grafted polypropylene composite film with excellent gas barrier and anticorrosion properties
| Autor: | Xuyang Li, Joong Hee Lee, Parthasarathi Bandyopadhyay, Ok-Kyung Park, Thanh Tuan Nguyen |
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| Rok vydání: | 2018 |
| Předmět: |
Polypropylene
Materials science Graphene Composite number Oxide Maleic anhydride Filtration and Separation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences law.invention Corrosion chemistry.chemical_compound chemistry Chemical engineering law Polymer chemistry General Materials Science Thermal stability Physical and Theoretical Chemistry Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | Journal of Membrane Science. 547:80-92 |
| ISSN: | 0376-7388 |
| Popis: | The octadecylamine (ODA) modified graphene oxide (mGO-ODA)/maleic anhydride grafted polypropylene (MAPP) composites (mGO-ODA/MAPP) were prepared and applied successfully as gas barrier and corrosion protection coating materials for the first time. The hydrophobic mGO-ODA sheets showed improved solubility in non-polar solvents with molar absorptivity was found to be 36 mL mg−1 cm−1 in ethylcyclohexane. FTIR analysis confirmed that mGO-ODA chemically interacts with MAPP. The mGO-ODA nanosheets were well exfoliated and dispersed in the MAPP matrix as confirmed by XRD analysis. The mGO-ODA/MAPP composites were coated on modified nylon sheets by a spray coating method, and the gas transmission rates (GTRs) of H2 and O2 were tested for these coated films. Cross-sectional FESEM showed the excellent attachment of these composite with the nylon film. The 60% mGO-ODA/MAPP-coated nylon film exhibited 93% and 112% improvement in elastic modulus values than the MAPP-coated and pure nylon films, respectively. Besides, 60% mGO-ODA/MAPP exhibited 94.1% and 95.0% reduction for H2GTR and O2GTR, respectively, compared to the pure nylon film. In addition, mGO-ODA/MAPP coated steel substrate exhibited excellent anticorrosion performance. The corrosion inhibition efficiency and corrosion rate were calculated to be 99.15% and 2.26 × 10−3 mm/year, respectively, for 60% mGO-ODA/MAPP. |
| Databáze: | OpenAIRE |
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