Nanocomposite Coating Based on Thermoplastic Acrylic Resin and Montmorillonite Clay: Preparation and Corrosion Prevention Properties
Author(s):
Abstract:
Different amounts of nanoclay were incorporated into the acrylic resin matrix at 0, 1, 3, and 5 wt.% loadings. The coatings were applied on low carbon steel plates. Optical microscopy, sedimentation test, transmission electron microscopy, and X-ray diffraction were employed to investigate the dispersion of nanoclay in matrix. The corrosion resistance of coatings was evaluated by electrochemical impedance spectroscopy, polarization measurement, and salt spray test. In addition, pull-off and cross-cut tests were used for the assessment of coating adhesion to the substrate. The results indicated that the anti-corrosive properties of the acrylic resin were obviously increased by the addition of nanoclay. The nanocomposite coatings containing 3 wt.% clay showed the best corrosion resistance. Finally, the nanocomposites containing 1 and 3 wt.% showed the highest adhesion to the substrate.
Keywords:
Language:
Persian
Published:
Iranian Journal of Oil & Gas Science and Technology, Volume:6 Issue: 1, Winter 2017
Pages:
63 to 76
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