Song, J;
Li, Y;
Zu, W;
Liu, H;
Lu, Y;
(2019)
Inexpensive and non-fluorinated superhydrophobic concrete coating for anti-icing and anti-corrosion.
Journal of Colloid and Interface Science
, 541
pp. 86-92.
10.1016/j.jcis.2019.01.014.
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Abstract
Reinforced concrete is widely used in civil engineering due to its outstanding mechanical properties and low cost. However, icing and corrosion on concrete-based facilities such as roads, dams, and bridges often cause safety issues. Superhydrophobic surface with completely water-repellent properties that are inspired by the lotus leaf in nature, has great potential to solve this problem, however, most state-of-the-art and commercial superhydrophobic coatings are expensive and weak in mechanical robustness for large-scale application on concrete. Here, we developed an inexpensive, non-fluorinated, and robust superhydrophobic concrete (S-concrete) coating with a contact angle of 160 ± 1° and sliding angle of 6.5 ± 0.5°. This coating had a high surface mechanical strength and retained superhydrophobicity after blade scratch for several times or sandpaper abrasion for 20 m distance. The robust S-concrete coating also had a good anti-icing ability, a low deicing force, and a high corrosion resistance, which is expected to be applied on roads, buildings, bridges, and many other concrete-based facilities in large scale for anti-icing and anti-corrosion purposes.
| Type: | Article |
|---|---|
| Title: | Inexpensive and non-fluorinated superhydrophobic concrete coating for anti-icing and anti-corrosion |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jcis.2019.01.014 |
| Publisher version: | https://doi.org/10.1016/j.jcis.2019.01.014 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Superhydrophobic, Concrete coating, Mechanical strength |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10066070 |
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