Back to Search
Start Over
Improved corrosion resistance based on APTES-grafted reduced sulfonated graphene/waterborne polyurethane coatings
- Source :
- Journal of Coatings Technology and Research. 15:1107-1115
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- In this work, reduced sulfonated graphene (RSG) containing free amine groups was prepared and modified by 3-aminopropyltriethoxysilane (APTES) and reduction by diethanolamine (DEA). In addition, waterborne polyurethane (WPU) composite coatings were prepared by adding RSG as an anticorrosive filler to WPU. From the results of Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy (SEM), it can be found that sulfonated graphene was modified with APTES and successfully reduced by DEA. The SEM images illustrated that RSG was uniformly doped in the WPU. With increasing RSG content, the hydrophobicity of the RSG/WPU films increased due to the strong covalent interaction between RSG and WPU. Finally, the corrosion resistance of the coating was characterized by polarization curves and salt spray tests.
- Subjects :
- Diethanolamine
Materials science
Scanning electron microscope
Composite number
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
Corrosion
law.invention
chemistry.chemical_compound
Colloid and Surface Chemistry
Coating
law
Fourier transform infrared spectroscopy
Polyurethane
Graphene
Surfaces and Interfaces
General Chemistry
021001 nanoscience & nanotechnology
0104 chemical sciences
Surfaces, Coatings and Films
chemistry
Chemical engineering
engineering
0210 nano-technology
Subjects
Details
- ISSN :
- 19353804 and 15470091
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Journal of Coatings Technology and Research
- Accession number :
- edsair.doi...........e39f4d05ca40e59894a91b0af7fa28a6