Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8024006 | Surface and Coatings Technology | 2018 | 9 Pages |
Abstract
A new superhydrophobic nanocomposite coating was prepared by combining the bisphenol A diglycidyl ether (BADGE) epoxy resin with unmodified multi-walled carbon nanotubes (MWCNTs). The mixture solutions were coated on the Q235 carbon steel surface through a facile and effective one-step spraying method. The highest water contact angle reached ~154° when 30% MWCNTs were added into the coating matrix. From the scanning electron microscopy (SEM) images, the superhydrophobic hierarchical microstructures were established via the agglomerated MWCNTs cured with epoxy resin. Furthermore, the as-prepared superhydrophobic nanocomposite coating with 30% MWCNTs showed excellent anti-icing property in the water-dripping and static freezing tests at the temperature of â10â¯Â°C. The superhydrophobic nanocomposite coating was endowed with an extraordinary mechanical durability, with the superhydrophobic state being retained even after 100â¯cycles in the tape-peeling test. From the electrochemical impedance spectroscopy (EIS) results, the low-frequency modulus first decreased due to the increasing conductivity of the coating surface, and then increased for the coating with 30% MWCNTs due to the air trapped in the superhydrophobic microstructure.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Fan Zhang, Hongchang Qian, Luntao Wang, Zhou Wang, Cuiwei Du, Xiaogang Li, Dawei Zhang,