A single step route to superhydrophobic surfaces through aerosol assisted deposition of rough polymer surfaces: duplicating the lotus effect

2009 ◽  
Vol 19 (8) ◽  
pp. 1074-1076 ◽  
Author(s):  
Colin R. Crick ◽  
Ivan P. Parkin
Keyword(s):  
Single Step ◽  
Polymer Surfaces ◽  
Superhydrophobic Surfaces ◽  
Lotus Effect

Injection Moulding of Durable Superhydrophobic Surfaces Made of LSR

2014 ◽  
Vol 41 (10) ◽  
pp. 1-6 ◽  
Author(s):  
C. Hopmann ◽  
U. Recht ◽  
C. Behmenburg
Keyword(s):  
Contact Angle ◽  
Abrasion Resistance ◽  
Injection Moulding ◽  
Single Step ◽  
Superhydrophobic Surfaces ◽  
Lotus Effect ◽  
Process Step ◽  
Moulding Process ◽  
Injection Moulding Process

The lotus effect known from nature has so far only been successfully imitated by the incorporation of additives or by modifying the polymers used. By using microstructured moulds there is now a way to produce durable, superhydrophobic surfaces in a single-step injection moulding process. This method combines shaping and functionalisation of the part in one process step. The studies show that, by selecting suitable microstructures, an increase in the contact angle by up to 40° can be achieved. At the same time, the LSR microstructures produced show good abrasion resistance.

scholarly journals Zirconia Nanotube Coatings - UV-Resistant Superhydrophobic Surfaces

2021 ◽  
Author(s):  
Swathi Naidu Vakamulla Raghu ◽  
Manuela S Killian ◽  
Khajidkhand Chuluunbandi
Keyword(s):  
Photoelectron Spectroscopy ◽  
Mechanical Stability ◽  
Single Step ◽  
Superhydrophobic Surfaces ◽  
Electrochemical Anodization ◽  
Oxide Surfaces ◽  
Metal Oxide Surfaces ◽  
Superhydrophobic Coatings ◽  
Assembled Monolayers ◽  
Nanostructured Oxide

Surface modifications influence material interactions such as wettability, imparting hydrophobicity or hydrophilicity. Mainstream research focused on enhancing product shelf-life, directs attention towards superhydrophobic surfaces (SHS). SHS offer several benefits for outdoor applications such as self-cleaning, anti-soiling, anti-mist etc. In this manuscript, we explore the possibility of combining structural and chemical modifications to metal substrates in order to create superhydrophobic metal oxide surfaces. ZrO2-nanotubes are evaluated with regard to their application as transparent UV-stable superhydrophobic coatings. Nanostructured oxide surfaces are created via single-step electrochemical anodization. The absence of HF acid-based pre-etching steps offer a safe and alternatively a green synthesis route. Anodized oxides are modified using octadecylphosphonic acid self-assembled monolayers, demonstrate superhydrophobicity and are evaluated for their mechanical stability under a jet of water, chemical stability under indirect sunlight irradiation in air/water and direct UV exposure. Zirconia nanotubular films were evaluated for optical transparency using light microscopy and surface wettability of the different zirconia-composites was compared to the model system-titania. Structural and compositional differences of the SAM layer upon time dependent decay were analyzed with X-ray photoelectron spectroscopy. <br>

Superhydrophobic Self-cleaning Surfaces in Nature

2020 ◽  
Vol 1 (1) ◽  
pp. 26-37
Author(s):  
Selim Mohammed S.
Keyword(s):  
Structural Design ◽  
Superhydrophobic Surfaces ◽  
Water Contact ◽  
Lotus Effect ◽  
Energy Characteristics ◽  
Superhydrophobic Property ◽  
Self Cleaning ◽  
Relationship Of ◽  
Shed Light ◽  
Marine Antifouling

A global interest was awarded to study the natural superhydrophobic surfaces since the description of the Lotus Effect by Barthlott and Neinhuis in 1997. Natural biomimetic surface merits of micro/nano-roughness, water contact ˃ 150°, sliding angles ˂10°, and minimized free-energy characteristics would motivate the dynamic fabrication of superhydrophobic surfaces. This critical review introduces an architectural panorama of numerous structural designs of natural superhydrophobic surfaces. Also, it discussed the fundamentals of self-cleaning and wetting theories to develop superhydrophobic structures. This progress review concentrates on superhydrophobic materials' applications for self-cleaning marine antifouling surfaces. It introduced an in-depth understanding of the structural design-superhydrophobic property relationship of the natural nano-wettable surfaces. It is technically first to shed light on the inner basics and platform for surface non-wettability and facilitates the way for design biomimetic self-cleaning antifouling surfaces.

Superhydrophobic Surfaces Having Two-Fold Adjustable Roughness Prepared in a Single Step

Langmuir ◽  
2006 ◽  
Vol 22 (7) ◽  
pp. 3125-3130 ◽  
Author(s):  
Laura Vogelaar ◽  
Rob G. H. Lammertink ◽  
Matthias Wessling
Keyword(s):  
Single Step ◽  
Superhydrophobic Surfaces

Nanocarbon-Induced Rapid Transformation of Polymer Surfaces into Superhydrophobic Surfaces

2010 ◽  
Vol 2 (11) ◽  
pp. 3378-3383 ◽  
Author(s):  
Joong Tark Han ◽  
Jun Suk Kim ◽  
Seong Hoon Kim ◽  
Ho Sun Lim ◽  
Hee Jin Jeong ◽  
...  
Keyword(s):  
Polymer Surfaces ◽  
Superhydrophobic Surfaces ◽  
Rapid Transformation

Ultrafast fabrication of superhydrophobic surfaces on engineering light metals by single-step immersion process

2017 ◽  
Vol 193 ◽  
pp. 42-45 ◽  
Author(s):  
Takahiro Ishizaki ◽  
Sou Kumagai ◽  
Mika Tsunakawa ◽  
Takuya Furukawa ◽  
Kae Nakamura
Keyword(s):  
Single Step ◽  
Superhydrophobic Surfaces ◽  
Light Metals

Lotus Effect: Roughness-Induced Superhydrophobic Surfaces

2008 ◽  
pp. 995-1072 ◽  
Author(s):  
Bharat Bhushan ◽  
Michael Nosonovsky ◽  
Yong Chae Jung
Keyword(s):  
Superhydrophobic Surfaces ◽  
Lotus Effect
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