Spraying Fabrication of Durable and Transparent Coatings for Anti-Icing Application: Dynamic Water Repellency, Icing Delay, and Ice Adhesion

2018 ◽  
Vol 11 (3) ◽  
pp. 3590-3598 ◽  
Author(s):  
Yizhou Shen ◽  
Yu Wu ◽  
Jie Tao ◽  
Chunling Zhu ◽  
Haifeng Chen ◽  
...  
Keyword(s):  
Water Repellency ◽  
Transparent Coatings ◽  
Ice Adhesion

scholarly journals Anti-icing performance of hydrophobic material used for electromechanical drill applied in ice core drilling

2020 ◽  
Vol 66 (258) ◽  
pp. 618-626 ◽  
Author(s):  
Pinlu Cao ◽  
Zhuo Chen ◽  
Hongyu Cao ◽  
Baoyi Chen ◽  
Zhichuan Zheng
Keyword(s):  
Shear Strength ◽  
Ice Core ◽  
Water Repellency ◽  
Contact Angles ◽  
Curved Surface ◽  
Coating Materials ◽  
Water Contact ◽  
Hydrophobic Coating ◽  
Main Challenge ◽  
Ice Adhesion

AbstractUsing an anti-icing coating to prevent ice accretion on the drill surface is a feasible solution to address the drilling difficulties in warm ice. In this study, four types of commercially available hydrophobic coating materials were tested to evaluate their water repellency and anti-icing properties, namely, a mixture of silica and fluorocarbon resin with polytrifluoroethylene, modified Teflon, silica-based emulsion and an acrylic-based copolymer. Their water contact angles are ~107°, 101°, 114° and 95°, respectively. All these hydrophobic coatings can significantly reduce the strength of the ice adhesion within a temperature range of −10 to −30°C on a planar or curved surface. The coating of an acrylic-based copolymer, in particular, can reduce the average tensile strength and the shear strength of the ice adhesion by 87.08 and 97.11% on planar surfaces at −30°C, and by 98.06 and 96.15% on a curved surface, respectively. The main challenge in the practical application of these coatings is their durability. An acrylic-based copolymer coating will lose its water repellency performance after 140 cycles of abrasion. The shear strength of ice adhered on curved surfaces coated with this material will approach that achieved on uncoated surfaces after 11 cycles of icing and de-icing tests.

scholarly journals Rf-Sputtered Teflon®-Modified Superhydrophobic Nanostructured Titanium Dioxide Coating on Aluminum Alloy for Icephobic Applications

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 432
Author(s):  
Saleema Noormohammed ◽  
Dilip Kumar Sarkar
Keyword(s):  
Water Repellency ◽  
Ice Formation ◽  
Aluminum Surface ◽  
Cold Winter ◽  
Safety Issues ◽  
The Past ◽  
Insulating Surfaces ◽  
Low Dielectric ◽  
Low Surface Energy ◽  
Ice Adhesion

Icing on surfaces such as cables or high-voltage insulators may often lead to severe safety issues such as power outages in cold winter conditions. Conventional methods used to tackle such icing problems include mechanical deicing, where the ice is scraped or broken, and chemical deicing, where deicers such as ethylene glycol are used. However, the best approach to addressing these issues is to prevent ice formation in the first place. Research in the past few decades have shown hydrophobic and superhydrophobic surfaces to be effective in reducing ice adhesion. We used the concept of water repellency to turn an aluminum surface superhydrophobic to minimize ice adhesion on these surfaces. However, to render these surfaces also applicable to insulating surfaces, we also demonstrated the adaptability of the concept on a low dielectric oxide, TiO2, to an aluminum surface with icephobic properties. This work demonstrates the importance of the coexistence of rough nanostructures as well as low-surface-energy compositions on a surface to make it superhydrophobic and icephobic and is applicable on metals and insulating surfaces.

Evaluation of Ice Adhesion Strength on the Oxidation of Transmission Line ACSR Cable

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

scholarly journals Helmet Phthalocyaninato Iron Complex as a Primary Drier for Alkyd Paints

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1220
Author(s):  
Jan Honzíček ◽  
Eliška Matušková ◽  
Štěpán Voneš ◽  
Jaromír Vinklárek
Keyword(s):  
Catalytic Performance ◽  
Mechanical Tests ◽  
Iron Complex ◽  
Kinetic Measurements ◽  
Time Resolved ◽  
Strong Activity ◽  
Vis Spectroscopy ◽  
Order Of Magnitude ◽  
Transparent Coatings ◽  
Time Resolved Infrared Spectroscopy

This study describes the catalytic performance of an iron(III) complex bearing a phthalocyaninato-like ligand in two solvent-borne and two high-solid alkyd binders. Standardized mechanical tests revealed strong activity, which appeared in particular cases at concentrations about one order of magnitude lower than in the case of cobalt(II) 2-ethylhexanoate, widespread used in paint-producing industry. The effect of the iron(III) compound on autoxidation process, responsible for alkyd curing, was quantified by kinetic measurements by time-resolved infrared spectroscopy and compared with several primary driers. Effect of the drier concentration on coloration of transparent coatings was determined by UV–Vis spectroscopy.

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