TY - JOUR
T1 - Fabrication of robust superhydrophobic myristic acid/ZrO2 coating with improved anti-icing and anti-corrosion for concrete via a two-step method
AU - Luo, Xueting
AU - Yin, Huawei
AU - Li, Tingzhen
AU - Ran, Ju
AU - Fu, Xinye
AU - Hu, Chuanbo
N1 - The funding for this work was provided by the Opening Fund of the State Key Laboratory of Refractories and Metallurgy (Wuhan University of Science and Technology) [grant number G202205], the Science and Technology Research Program of Chongqing Education Commission [grant numbers KJQN202001234, KJQN202201214, KJZD-M202301201], the Natural Science Foundation of Chongqing of China [grant numbers cstc2020jcyj-msxmX0826, cstc2021jcyj-msxmX1139].
Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/7/20
Y1 - 2024/7/20
N2 - To address the safety concerns associated with icing and corrosion of concrete-based facilities, a facile two-step process of sandpaper covering and spraying for fabricating a robust superhydrophobic myristic acid/ZrO2 coating (MAZ-RSC) on concrete surface was proposed. Sandpaper covering and ZrO2 modified with myristic acid were used to fabricate the superhydrophobic structure. An analysis of the resultant superhydrophobic concrete's surface morphology and chemical structure was performed. The formation mechanism of the obtained MAZ-RSC was discussed. Results indicate that the MAZ-RSC coating exhibited superior superhydrophobic and self-cleaning properties with a contact angle of 161.3° and a sliding angle of 1.2°. The robust ability of the as-prepared MAZ-RSC coating was assessed through knife scratching, tape peeling, and sandpaper abrasion. The presence of ZrO2 enabled the MAZ-RSC to be a superhydrophobic hard coating. Meanwhile, the prepared coating was proven to possess a good active anti-icing ability and a strong anti-corrosion ability and to be easily de-iced. Further tests show that this coating can maintain excellent chemical resistance across a broad pH range because of its superior hydrophobicity and the chemical inertness of the ZrO2 particles. Thus, the as-prepared coating is expected to be adopted in practical areas such as roads, buildings and bridges.
AB - To address the safety concerns associated with icing and corrosion of concrete-based facilities, a facile two-step process of sandpaper covering and spraying for fabricating a robust superhydrophobic myristic acid/ZrO2 coating (MAZ-RSC) on concrete surface was proposed. Sandpaper covering and ZrO2 modified with myristic acid were used to fabricate the superhydrophobic structure. An analysis of the resultant superhydrophobic concrete's surface morphology and chemical structure was performed. The formation mechanism of the obtained MAZ-RSC was discussed. Results indicate that the MAZ-RSC coating exhibited superior superhydrophobic and self-cleaning properties with a contact angle of 161.3° and a sliding angle of 1.2°. The robust ability of the as-prepared MAZ-RSC coating was assessed through knife scratching, tape peeling, and sandpaper abrasion. The presence of ZrO2 enabled the MAZ-RSC to be a superhydrophobic hard coating. Meanwhile, the prepared coating was proven to possess a good active anti-icing ability and a strong anti-corrosion ability and to be easily de-iced. Further tests show that this coating can maintain excellent chemical resistance across a broad pH range because of its superior hydrophobicity and the chemical inertness of the ZrO2 particles. Thus, the as-prepared coating is expected to be adopted in practical areas such as roads, buildings and bridges.
KW - Anti-corrosion
KW - Anti-icing
KW - Concrete
KW - Mechanical stability
KW - Superhydrophobic
UR - http://www.scopus.com/inward/record.url?scp=85190859372&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/abs/pii/S0927775724009014?via%3Dihub
U2 - 10.1016/j.colsurfa.2024.134040
DO - 10.1016/j.colsurfa.2024.134040
M3 - Journal article
AN - SCOPUS:85190859372
SN - 0927-7757
VL - 693
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
M1 - 134040
ER -