Thermally and Chemically Stable Candle Soot Superhydrophobic Surface with Excellent Self-Cleaning Properties in Air and Oil

2018 ◽  
Vol 1 (3) ◽  
pp. 1204-1211 ◽  
Author(s):  
Liji Xiao ◽  
Weiguo Zeng ◽  
Guangfu Liao ◽  
Changfeng Yi ◽  
Zushun Xu
Keyword(s):  
Superhydrophobic Surface ◽  
Candle Soot ◽  
Self Cleaning

Toward Easily Enlarged Superhydrophobic Copper Surfaces with Enhanced Corrosion Resistance, Excellent Self-Cleaning and Anti-Icing Performance by a Facile Method

2020 ◽  
Vol 20 (10) ◽  
pp. 6317-6325 ◽  
Author(s):  
Xueting Shi ◽  
Libin Zhao ◽  
Jing Wang ◽  
Libang Feng
Keyword(s):  
Corrosion Resistance ◽  
Superhydrophobic Surface ◽  
Cost Effective ◽  
Copper Plate ◽  
Plate Surface ◽  
Water Contact ◽  
Copper Surfaces ◽  
Self Cleaning ◽  
Water Repellence

This work reports a facile method for fabricating superhydrophobic surface on copper plate by AgNO3 treatment and dodecyl mercaptan modification. The as-prepared superhydrophobic copper plate presents hierarchical and rough morphology composed of nanosheets and nanoparticleformed matrix. Meanwhile, long alkyl chains are assembled onto the rough surface successfully. Consequently, the copper plate is endowed with excellent superhydrophobic performance with a water contact angle of 156.8° and a rolling angle of ca. 3°. Moreover, the superhydrophobicity has long-term durability and excellent stability. Grounded on the strong water repellence, the resultant superhydrophobic copper plate surface exhibits multi-functions. The excellent performance can be well explained by “Cushion effect” and Capillary phenomena. As a result, water and corrosive species can be prevented from contacting with the copper plate surface, and contaminants can be taken away easily by the rolling water droplets. Meanwhile, the icing process of water is delayed on the superhydrophobic surface. Therefore, the superhydrophobic copper is endued with enhanced corrosion resistance, excellent self-cleaning and anti-icing performance. We believe that this facile method provides a simple and cost-effective process to improve the properties of copper plate, and which may see practical application of the superhydrophobic materials.

scholarly journals A Durable and Self-Cleaning Superhydrophobic Surface Prepared by Precipitating Flower-Like Crystals on a Glass-Ceramic Surface

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1642
Author(s):  
Haiqing Fu ◽  
Shuo Liu ◽  
Lanlin Yi ◽  
Hong Jiang ◽  
Changjiu Li ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Superhydrophobic Surface ◽  
Three Dimensional ◽  
Strong Acid ◽  
Ceramic Surface ◽  
Sliding Angle ◽  
Water Contact ◽  
Prepared Glass ◽  
Self Cleaning ◽  
Dual Scale

Herein, a superhydrophobic surface with superior durability was fabricated on a glass-ceramic surface by crystallization, hydrofluoric acid (HF) etching, and surface grafting. The as-prepared glass-ceramic surface was composed of three-dimensional flower-like micro-clusters, which were self-assembled from numerous nanosheets. Such a dual-scale rough surface exhibited superhydrophobicity, with a water contact angle (WCA) of 170.3° ± 0.1° and a sliding angle (SA) of ~2° after grafting with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (FAS-17). This can be attributed to the synergistic effect between the dual-scale structure and surface chemistry. Furthermore, this surface exhibited excellent self-cleaning properties, stability against strong acid and strong alkali corrosion, and anti-stripping properties.

Fabrication of pinecone-like structure superhydrophobic surface on titanium substrate and its self-cleaning property

2016 ◽  
Vol 290 ◽  
pp. 82-90 ◽  
Author(s):  
Shou-Yi Li ◽  
Yan Li ◽  
Jian Wang ◽  
Ya-Gong Nan ◽  
Bao-Hong Ma ◽  
...  
Keyword(s):  
Superhydrophobic Surface ◽  
Titanium Substrate ◽  
Self Cleaning

scholarly journals Fabrication of superhydrophobic surface with corrosion resistance via cyclic chemical etching process on aluminum substrate

2021 ◽  
Author(s):  
Shuwei Lv ◽  
Xinming Zhang ◽  
Xiaodong Yang ◽  
Xianli Liu ◽  
Zhuojuan Yang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Superhydrophobic Surface ◽  
Chemical Etching ◽  
Aluminum Surface ◽  
Corrosion Properties ◽  
Water Contact ◽  
Simple Method ◽  
Corrosion Resistance Property ◽  
Self Cleaning ◽  
Ideal Method

Abstract Aluminum (Al) is a metal material commonly used in industry, but its surface is easily corroded. The superhydrophobic surface has great self-cleaning and anti-corrosion properties, and it is an ideal method to construct a functional aluminum surface. Here, a simple method based on cyclic chemical etching was proposed to achieve the superhydrophobic Al surface with honeycomb structures. The surface of the sample etched eight times comprised micro/nano-scale honeycomb cavities, while exhibiting a water contact angle (WCA) of 135°. After being treated with an octadecanethiol (C18H38S) methanol solution, this sample demonstrated a WCA of 153.1°. A self-cleaning test was performed on the superhydrophobic Al surface, showing the excellent self-cleaning property. Finally, the electrochemical anti-corrosion test demonstrated that the above-mentioned superhydrophobic Al surface had great corrosion resistance property. Overall, this work has enriched the theory and technology for fabricating aluminum to achieve superhydrophobic.

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