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Open AccessArticle

Facile Preparation of a Robust and Durable Superhydrophobic Coating Using Biodegradable Lignin-Coated Cellulose Nanocrystal Particles

by Jingda Huang 1,2, Siqun Wang 1,2,* and Shaoyi Lyu 1,*
1
Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
2
Center for Renewable Carbon, University of Tennessee, Knoxville, TN 37996, USA
*
Authors to whom correspondence should be addressed.
Materials 2017, 10(9), 1080; https://doi.org/10.3390/ma10091080
Received: 12 July 2017 / Revised: 18 August 2017 / Accepted: 11 September 2017 / Published: 14 September 2017
It is a challenge for a superhydrophobic coating to overcome the poor robustness and the rough surface structure that is usually built using inorganic particles that are difficult to degrade. In this study, a robust superhydrophobic coating is facilely prepared by using commercial biodegradable lignin-coated cellulose nanocrystal (L-CNC) particles after hydrophobic modification to build rough surface structures, and by choosing two different adhesives (double-sided tape and quick-setting epoxy) to support adhesion between the L-CNC particles and the substrates. In addition to excellent self-cleaning and water repellence properties, the resulting coatings show outstanding mechanical strength and durability against sandpaper abrasion, finger-wipe, knife-scratch, water jet, UV radiation, high temperature, and acidic and alkali solutions, possessing a wide application prospect. View Full-Text
Keywords: superhydrophobic coating; lignin-coated cellulose nanocrystal (L-CNC); mechanical strength; durability superhydrophobic coating; lignin-coated cellulose nanocrystal (L-CNC); mechanical strength; durability
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Huang, J.; Wang, S.; Lyu, S. Facile Preparation of a Robust and Durable Superhydrophobic Coating Using Biodegradable Lignin-Coated Cellulose Nanocrystal Particles. Materials 2017, 10, 1080.

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