With the widespread development of pumped storage power station planning and construction, the winter operation of existing high cold area face rockfill dams is significantly affected by ice damage, leading to problems such as easy detachment after long-term immersion, delamination due to frost heaving, and damage from ice pushing and ice scraping of traditional surface protective materials for panels. To meet the performance requirements of surface protective materials for panels in cold regions, a fluorine-modified polyurethane surface anti-icing material has been prepared using the fluorine-terminated agent 1H, 1H, 2H, 2H-perfluorooctanol. The ice adhesion strength, mechanical properties, and water resistance of the materials were experimentally demonstrated. After a winter on-site engineering verification of the 1#~2# panels on the left bank of the upper reservoir dam at a pumped storage power station in a severe cold region, the material did not exhibit long-term immersion or delamination and showed good anti-seepage and anti-icing performance. These results represent a breakthrough in surface waterproofing and anti-icing technology for concrete face rockfill dams in high cold regions.
LIUX N, LIB Q, FENGM W, et al. Research and engineering application of urea⁃based polymer for cold⁃resistant protection on high⁃altitude dam surfaces[J]. Water Resources and Hydropower Engineering, 2021, 52(8): 27-37. (in Chinese)
[3]
LIP F, YUANJ, LANL L, et al. Durable and organic solvent⁃free anti⁃icing coating fabricated from polyacrylate grafted with PDMS[J]. Polymer, 2025, 317: 127857.
[4]
ZHANGH N, GUOH Y, JIANGR J, et al. Research progress of multifunctional anti‐icing composite materials[J]. Journal of Applied Polymer Science, 2024, 141(36): e55922.
[5]
ZHANGP Y, GUOZ G. Robust anti⁃icing slippery liquid⁃infused porous surfaces inspired by nature: a review[J]. Materials Today Physics, 2024, 46: 101478.
[6]
ZENGD, LIY, LIUH Q, et al. Superhydrophobic coating induced anti⁃icing and deicing characteristics of an airfoil[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023, 660: 130824.
MAR, JIANGQ. Superhydrophobic materials constructed from inorganic special surface structures[J]. Chemical Industry and Engineering Progress, 2019, 38(9): 4119-4130. (in Chinese)
YUM M, ZHANGY, LIANGL, et al. Sand erosion and ice prevention coating for the leading edge of aircraft wings based on organosilicon⁃modified polyurethane elastomer[J]. Journal of Aeronautical Materials, 2021, 41(5): 28-34. (in Chinese)
SONGW, LIF Y, ZHANGD J, et al. Preparation and research of polyurethane based anti⁃icing coating based on different Young’s modulus[J]. Acta Polymerica Sinica, 2024, 55(8): 1033-1043. (in Chinese)
[13]
WUQ H, ZHAOZ M, LIP F, et al. Fluorine⁃modified CNT@epoxy electrothermal coating for long⁃term anti⁃icing at low pulse voltage[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023, 666: 131332.
[14]
QIY L, YANGZ B, HUANGW X, et al. Robust superhydrophobic surface for anti⁃icing and cooling performance: application of fluorine⁃modified TiO2 and fumed SiO2 [J]. Applied Surface Science, 2021, 538: 148131.
[15]
FILLIONR M, RIAHIA R, EDRISYA. A review of icing prevention in photovoltaic devices by surface engineering[J]. Renewable and Sustainable Energy Reviews, 2014, 32: 797-809.
WANGH S, TAOB W, ZHANGX P, et al. Research progress of fluorine⁃containing polyurethanes and their application prospects in propellants[J]. Chemical Propellants & Polymeric Materials, 2019, 17(2): 13-17, 60. (in Chinese)
SUNW, XUG W, HUANGY P, et al. Preparation of fluorinated waterborne polyurethane and the application in high gloss/matte coating[J]. Plastics, 2022, 51(2): 107-112. (in Chinese)