Journal
PROGRESS IN ORGANIC COATINGS
Volume 78, Issue -, Pages 256-260Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2014.08.011
Keywords
Bituminous coating; Nanocomposite; Clay; Corrosion
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The influence of clay particles on the corrosion properties of bituminous coating was studied. Different percentages of natural montmorillonite clay (Cloisite Na+) were added to emulsified bitumen in water to make 2 wt.%, 3 wt.% and 4wt.% of clay/bitumen nanocomposite coatings. The coatings were applied on steel 37. Optical microscopy and transmission electron microscopy (TEM) were employed to study the structure of nanocomposite. To investigate the anti-corrosion properties of the coated panels, electrochemical impedance spectroscopy (EIS) was used. The findings indicated that the addition of clay nanolayers improved corrosion resistance of the coatings. Moreover, increasing clay loading up to 4 wt.%, increased the corrosion resistance. (C) 2014 Elsevier B.V. All rights reserved.
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