Candle Soot-Based Electrosprayed Superhydrophobic Coatings for Self-Cleaning, Anti-Corrosion and Oil/Water Separation

The interest in candle soot (CS)-based superhydrophobic coatings has grown rapidly in recent years. Here, a simple and low-cost process has been developed for the fabrication of CS-based superhydrophobic coatings through electrospraying of the composite cocktail solution of CS and polyvinylidene flu...

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Published inMaterials Vol. 15; no. 15; p. 5300
Main Authors Zhang, Yuting, Lei, Tingping, Li, Shuangmin, Cai, Xiaomei, Hu, Zhiyuan, Wu, Weibin, Lin, Tianliang
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2022
MDPI
Subjects
anti-corrosion
candle soot
Cleaning
Coatings
Contact angle
Corrosion
Corrosion prevention
Electrospraying
Experiments
Fluorides
Hydrophobic surfaces
Hydrophobicity
Microspheres
Morphology
oil/water separation
Outdoor air quality
Polymers
Polyvinylidene fluorides
self-cleaning
Separation
Soot
Stainless steel
superhydrophobic coatings
Synergistic effect
China
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Summary:The interest in candle soot (CS)-based superhydrophobic coatings has grown rapidly in recent years. Here, a simple and low-cost process has been developed for the fabrication of CS-based superhydrophobic coatings through electrospraying of the composite cocktail solution of CS and polyvinylidene fluoride (PVDF). Results show that the superhydrophobicity of the coating closely relates to the loading amount of CS which results in coatings with different roughnesses. Specifically, increasing the CS amount (not more than 0.4 g) normally enhances the superhydrophobicity of the coating due to higher roughness being presented in the produced microspheres. Further experiments demonstrate that the superhydrophobicity induced in the electrosprayed coating results from the synergistic effect of the cocktail solution and electrospray process, indicating the importance of the coating technique and the solution used. Versatile applications of CS-based superhydrophobic coatings including self-cleaning, anti-corrosion and oil/water separation are demonstrated. The present work provides a convenient method for the fabrication of CS-based superhydrophobic coatings, which is believed to gain great interest in the future.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma15155300