scholarly journals Understanding the role of hollow sub-surface structures in reducing ice adhesion strength

Soft Matter ◽  
2019 ◽  
Vol 15 (13) ◽  
pp. 2905-2910 ◽  
Author(s):  
Zhiwei He ◽  
Yizhi Zhuo ◽  
Feng Wang ◽  
Jianying He ◽  
Zhiliang Zhang

Polydimethylsiloxane coatings with three patterns of hollow sub-surface structures were prepared to understand their role in reducing ice adhesion strength.

Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 648
Author(s):  
Kirill A. Emelyanenko ◽  
Alexandre M. Emelyanenko ◽  
Ludmila B. Boinovich

Ice adhesion plays a crucial role in the performance of materials under outdoor conditions, where the mitigation of snow and ice accumulation or spontaneous shedding of solid water precipitations are highly desirable. In this brief review we compare the adhesion of water and ice to different surfaces and consider the mechanisms of ice adhesion to solids basing on the surface forces analysis. The role of a premelted or quasi-liquid layer (QLL) in the ice adhesion is discussed with the emphasis on superhydrophobic surfaces, and the temperature dependence of ice adhesion strength is considered with an account of QLL. We also very briefly mention some recent methods for the measurement of ice adhesion strength to the icephobic engineering materials outlining the problems which remain to be experimentally solved.


2019 ◽  
Vol 29 (6) ◽  
pp. 378-384 ◽  
Author(s):  
Hui Jae Cho ◽  
◽  
You Sub Kim ◽  
Yong Chan Jung ◽  
Soo Yeol Lee

Ice Adhesion ◽  
2020 ◽  
pp. 237-284
Author(s):  
Alexandre Laroche ◽  
Maria Jose Grasso ◽  
Ali Dolatabadi ◽  
Elmar Bonaccurso

2012 ◽  
Vol 258 (23) ◽  
pp. 9385-9388 ◽  
Author(s):  
Marian Zamfirescu ◽  
Adrian Dinescu ◽  
Mihai Danila ◽  
Gabriel Socol ◽  
Catalina Radu

2020 ◽  
Vol 385 ◽  
pp. 125382 ◽  
Author(s):  
Halar Memon ◽  
Junpeng Liu ◽  
Davide S.A. De Focatiis ◽  
Kwing-so Choi ◽  
Xianghui Hou

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 896
Author(s):  
Guoyong Liu ◽  
Yuan Yuan ◽  
Ruijin Liao ◽  
Liang Wang ◽  
Xue Gao

A breakdown caused by the icing of power generation infrastructure is one of the serious disasters occurring in the power system. Slippery lubricant-infused porous surfaces (SLIPSs), whose ice adhesion strength is extremely low, have a promising application in the anti-icing field. In the present study, we fabricated SLIPSs with low ice adhesion strength by infusing silicone oil into an anodic aluminum oxide (AAO) substrate. In addition, the effects of the viscosity of silicone oil on the anti-icing properties and durability of the SLIPSs were investigated. The results show that a lower viscosity silicone oil brings about more slippery surfaces and lower ice adhesion strength. The ice adhesion strength was reduced by 99.3% in comparison with the bare Al alloy. However, low-viscosity silicone oil has worse de-icing resistance and heat resistance. Additionally, the porous films filled with low-viscosity silicone oil possess a better self-healing property after icing/de-icing cycles and followed by exposure to the atmosphere. When the viscosity of silicone oil is 50 mPa·s, the SLIPSs exhibit the best durability for anti-icing. Even after 21 de-icing tests or 168 h of heating at 90 °C, the ice adhesion strength still remains below 10% compared with that of bare Al. This work provides some useful advice for the design and fabrication of anti-icing SLIPSs.


Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1111
Author(s):  
Ladislav Reinprecht ◽  
Radovan Tiňo ◽  
Marek Šomšák

The adhesion strength between the transparent acrylic or alkyd coatings and the Norway spruce (Picea abies Karst L.) wood was determined by EN ISO 4624 and analyzed concerning four variables: (a) fungicidal pre-treatment of wood with boric acid or benzalkonium chloride, (b) cold plasma modification of wood surfaces, (c) presence of hindered amine light stabilizer (HALS) or hydroxyphenyl-benzotriazoles (BTZ) in the role of UV-additives in coatings, and (d) weathering of coated wood—lasting 1 week in Xenotest by a modified EN 927-6, or 14, 28 and 42 weeks outdoors at 45° by EN 927-3. In the un-weathered state, the adhesion strength was positively affected by the initial plasma modification of wood surfaces, more evident with the application of acrylic water-borne coatings. On the contrary, the adhesion strength was not influenced by the fungicidal pre-treatment of wood and by the UV-additive’s presence in coatings. The adhesion was negatively affected by weathering—exponentially outdoor—irrespective of the fungicidal pre-treatment of wood, the plasma modification of wood surfaces, the coating type, and the presence of UV-additive in coatings.


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