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Aiming at the problem that organic diluents in conventional superhydrophobic coatings are prone to cause environmental pollution and safety hazards, 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FAS-17) was used to modify the surface of micro/nano silica (SiO2) particles in this paper. A diluent free superhydrophobic anti-icing composite coating (RTV@Fn-SiO2(11)#Fm-SiO2) with macroscopic structure was prepared using room temperature vulcanized silicone rubber (RTV) as the substrate, and a macro-micro-nano multi-scale rough structure was constructed by knurling embossing technology, and its wettability, anti-icing performance, and environmental tolerance were systematically tested. The results show that the water contact angle of the prepared coating reaches (162.4±1.8)°, and the sliding angle is only (2.1±0.2)°, showing excellent superhydrophobic performance. In both dynamic and static icing tests, the coating demonstrates excellent anti-icing performance. The static ice formation time is extended to 1 292 s, which is 14 times that of the bare aluminum substrate, and the icing adhesion strength reduces significantly. After acid and alkali corrosion, ultraviolet ageing, tape stripping, and sandpaper wear resistance tests, the coating still maintains stable superhydrophobic performance. The diluent free superhydrophobic anti-icing composite coating with macrostructure has excellent anti-icing performance and envi-ronmental stability, which has potential application value for the protection of insulating equipment in power transmission systems.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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