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Volume 15
Issue 7
10.3390/coatings15070740
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

A Simple Method to Prepare Superhydrophobic Surfaces Based on Bamboo Cellulose, and an Investigation of Surface Properties

by
Yu Wang
1,
Junting Li
1,
JingHai Guo
2,
Tiancheng Yuan
1 and
Yanjun Li
1,*
1
Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China
2
Inner Mongolia Jiaze Wood Industry Co., Ltd., Ulanqab 012000, China
*
Author to whom correspondence should be addressed.
Coatings 2025, 15(7), 740; https://doi.org/10.3390/coatings15070740
Submission received: 27 May 2025 / Revised: 17 June 2025 / Accepted: 19 June 2025 / Published: 20 June 2025
(This article belongs to the Section Functional Polymer Coatings and Films)
Versions Notes

Abstract

The present work introduces a sustainable, low-carbon method to fabricate durable, non-toxic superhydrophobic surfaces using bamboo-derived cellulose. Uniform TEMPO-carboxylated cellulose particles (TOC-Ps), approximately 2 μm in diameter, were synthesized through thermal polymerization and spray drying. These particles, featuring a nano-scale convex structure formed by intertwined TOC nanofibers, were applied to substrates and modified with low-surface-energy materials to achieve superhydrophobicity. At an optimal TOC-P mass ratio of 6%, the surface displayed a water contact angle of 156.2° and a sliding angle of 7°. The coating maintained superhydrophobicity after extensive mechanical testing—120 cm of abrasion, 100 bending cycles, and continuous trampling—and exhibited robust chemical stability across harsh conditions, including subjection to high temperatures, UV irradiation, and corrosive solutions (pH 2–12). The hierarchical micro–nano structure was found to enhance both hydrophobicity and durability, offering an environmentally friendly alternative for self-cleaning surfaces, textiles, and building applications.
Keywords: bamboo; cellulose; superhydrophobic; coating bamboo; cellulose; superhydrophobic; coating

Share and Cite

MDPI and ACS Style

Wang, Y.; Li, J.; Guo, J.; Yuan, T.; Li, Y. A Simple Method to Prepare Superhydrophobic Surfaces Based on Bamboo Cellulose, and an Investigation of Surface Properties. Coatings 2025, 15, 740. https://doi.org/10.3390/coatings15070740

AMA Style

Wang Y, Li J, Guo J, Yuan T, Li Y. A Simple Method to Prepare Superhydrophobic Surfaces Based on Bamboo Cellulose, and an Investigation of Surface Properties. Coatings. 2025; 15(7):740. https://doi.org/10.3390/coatings15070740

Chicago/Turabian Style

Wang, Yu, Junting Li, JingHai Guo, Tiancheng Yuan, and Yanjun Li. 2025. "A Simple Method to Prepare Superhydrophobic Surfaces Based on Bamboo Cellulose, and an Investigation of Surface Properties" Coatings 15, no. 7: 740. https://doi.org/10.3390/coatings15070740

APA Style

Wang, Y., Li, J., Guo, J., Yuan, T., & Li, Y. (2025). A Simple Method to Prepare Superhydrophobic Surfaces Based on Bamboo Cellulose, and an Investigation of Surface Properties. Coatings, 15(7), 740. https://doi.org/10.3390/coatings15070740

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