首页|Durable Design of Superhydrophobic Coatings with TiO2 Particles and Al2O3 Whiskers for the Enhanced Anti-icing Performance

Durable Design of Superhydrophobic Coatings with TiO2 Particles and Al2O3 Whiskers for the Enhanced Anti-icing Performance

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Superhydrophobic coatings with high non-wetting properties are widely applied in anti-icing applications.However,the micro-nanostructures on the surfaces of superhydrophobic coatings are fragile under external forces,resulting in reduced durability.Therefore,mechanical strength and durability play a crucial role in the utilization of superhydrophobic mate-rials.In this study,we employed a two-step spraying method to fabricate superhydrophobic FEVE-based coatings with exceptional mechanical durability,utilizing fluorinated TiO2 nanoparticles and fluorinated Al2O3 microwhiskers as the fillers.The composite coating exhibited commendable non-wetting properties,displaying a contact angle of 164.84° and a sliding angle of 4.3°.On this basis,the stability of coatings was significantly improved due to the interlocking effect of A12O3 whiskers.After 500 tape peeling cycles,500 sandpaper abrasion tests,and 50 kg falling sand impact tests,the coatings retained superhydrophobicity,exhibiting excellent durability and application capability.Notably,the ice adhesion strength on the coatings was measured at only 65.4 kPa,while the icing delay time reached 271.8 s at-15 ℃.In addi-tion,throughout 500 freezing/melting cycles,statistical analysis revealed that the superhydrophobic coatings exhibited a freezing initiation temperature as low as-17.25 ℃.

Superhydrophobic coatingsAnti-icingMechanical durability

Weilan Liu、Kunlong Li、Yizhou Shen、Huanyu Zhao、Yaru Ni、Zeyu Cai、Lingfeng Zhao、Zhen Wang

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Institute of Advanced Materials(IAM),School of Materials Science and Engineering,Nanjing Tech University,Nanjing 211816,China

College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China

Aviation Industry Aerodynamics Research Institute of China,Shenyang 110000,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvinceInternational Cooperation Project of Jiangsu ProvinceNational Science and Technology Major Project of ChinaFundamental Research Funds for the Central UniversitiesLiaoning Provincial Key Laboratory of Aircraft Ice ProtectionBasic Research Project of SuzhouProject Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions2022 large instruments and equipment test fee of Nanjing University of Aeronautics and Astronautics

52075246U2341264BK20211568BZ2023045J2019-Ⅲ-0010-0054NE2022005XFX20220301SJC2022032

2024

10.1007/s42235-024-00516-4

仿生工程学报(英文版)
吉林大学

仿生工程学报(英文版)

CSTPCDEI
影响因子：0.837
ISSN：1672-6529
年,卷(期)：2024.21(3)
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