Domantovsky Alexander G, Chulkova Elizaveta V, Emelyanenko Kirill A, Maslakov Konstantin I, Emelyanenko Alexandre M, Boinovich Ludmila B
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 Bldg. 4, 119071 Moscow, Russia.
N.S. Kurnakov Institute of General and Inorganic Chemistry, Leninsky Prospect 31, 119071 Moscow, Russia.
Materials (Basel). 2022 Mar 26;15(7):2447. doi: 10.3390/ma15072447.
Hydrophilic or superhydrophilic materials in some cases are considered to be potentially icephobic due to a low ice-adhesion strength to such materials. Here, the evolution of the properties of a superhydrophilic aluminum alloy with hierarchical roughness, fabricated by laser processing, was studied in contact with water during prolonged cyclic variation in temperature. It was shown that the chemical interaction of rough alumina with water molecules caused the substitution of the surface oxide by polymorphic crystalline gibbsite or bayerite phases while preserving hierarchical roughness. Due to such substitution, mechanical durability was notably compromised. Thus, in contrast to the superhydrophobic laser-processed samples, the superhydrophilic samples targeted on the exploitation in an open atmosphere as a material with anti-icing properties cannot be considered as the industrially attractive way to combat icing.
在某些情况下，亲水性或超亲水性材料由于与这类材料的冰附着力较低而被认为具有潜在的疏冰性。在此，研究了通过激光加工制备的具有分级粗糙度的超亲水性铝合金在长时间温度循环变化过程中与水接触时其性能的演变。结果表明，粗糙氧化铝与水分子的化学相互作用导致表面氧化物被多晶型结晶三水铝石或拜耳石相取代，同时保留了分级粗糙度。由于这种取代，机械耐久性显著受损。因此，与超疏水激光加工样品不同，旨在作为具有防冰性能的材料在开放大气中使用的超亲水样品不能被视为对抗结冰的具有工业吸引力的方法。
