| WANG Zhe,SHEN Yi-zhou,LIU Sen-yun,LIU Wei-lan,ZENG Chao-jiao,TAO Jie.Research Progress in the Design and Fabrication Technology of Low-Ice-Adhesion Coatings[J],50(8):18-27 |
| Research Progress in the Design and Fabrication Technology of Low-Ice-Adhesion Coatings |
| Received:June 21, 2021 Revised:July 24, 2021 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2021.08.002 |
| KeyWord:de-icing, ice adhesion, superhydrophobic, super lubrication, interface toughness |
| Author | Institution |
| WANG Zhe |
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing , China |
| SHEN Yi-zhou |
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing , China |
| LIU Sen-yun |
China Aerodynamics Research and Development Center, Mianyang , China |
| LIU Wei-lan |
Institute of Advanced Materials, Nanjing Tech University, Nanjing , China |
| ZENG Chao-jiao |
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing , China |
| TAO Jie |
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing , China |
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| Abstract: |
| Based on the purpose of rapidly and efficiently de-icing of aircrafts, it is necessary to design and prepare the coatings with low (or even ultra-low) ice adhesion, and reduce the dependence degree on the high energy consumption anti-icing/de-icing technology. The development history of existing icephobic coatings is summarized. Based on the anti-icing mechanism of different coatings, the ice adhesion performance is used as a main technical indicator to evaluate the anti-icing/de-icing ability of the coatings. The de-icing mechanism of hydrophobic coatings, super lubricating coatings and low-interfacial toughness coatings are successively clarified, the hydrophobic/icephobic effect of the three are specifically introduced, and their respective advantages and disadvantages are compared and analyzed. It focuses on the advantages of large-scale deicing of low-interfacial toughness coatings, that is, when facing large-scale icing conditions, the (super) icephobic coatings defined by the shear adhesion strength are limited by the icing area from the viewpoint of de-icing external force, which increases proportionally with the increase of the icing area. However, the low-interfacial toughness coatings can induce the formation of micro-cracks between the coatings and ice interface and reduce the interface fracture toughness. This allows the micro-cracks to rapidly expand under the action of low de-icing force (even the ice layer’s own gravity), thereby making the ice layer to be detached from the solid surface. In this way, the methods of designing and preparing a new type of (super) icephobic coating are summarized, and the development directions of low-ice adhesion coating in the field of anti-icing/de-icing are prospected. |
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