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Fabrication of Self-healing Superhydrophobic Surfaces from Water-Soluble Polymer Suspensions Free of Inorganic Particles through Polymer Thermal Reconstruction

Department of Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
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Coatings 2018, 8(4), 144; https://doi.org/10.3390/coatings8040144
Received: 11 March 2018 / Revised: 4 April 2018 / Accepted: 11 April 2018 / Published: 16 April 2018
(This article belongs to the Special Issue Superhydrophobic Coatings)
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Abstract

Self-healing superhydrophobic surfaces have been fabricated by casting and drying water-soluble amphiphilic polymer suspensions at room temperature through thermal reconstruction. When compared with previous methods, this approach exploits modified natural hierarchical microstructures from wood instead of artificially constructing them for superhydrophobic morphology, which involves neither organic solvent nor inorganic particles nor complex procedures. The obtained superhydrophobic surface has acceptable resistance to abrasion. The surface can recover superhydrophobicity spontaneously at room temperature upon damage, which can be accelerated at a higher temperature. After depleting healing agents, the polymer suspension can be sprayed or cast onto wood surfaces to replenish healing agents and to restore self-healing ability. The superhydrophobic surface greatly increases the mold inhibition and water resistance of wood, which would prolong the service life of wood based materials. View Full-Text
Keywords: superhydrophobic surfaces; water-soluble polymers; natural hierarchical microstructures; polymer thermal reconstructions superhydrophobic surfaces; water-soluble polymers; natural hierarchical microstructures; polymer thermal reconstructions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Shen, Y.; Wu, Y.; Shen, Z.; Chen, H. Fabrication of Self-healing Superhydrophobic Surfaces from Water-Soluble Polymer Suspensions Free of Inorganic Particles through Polymer Thermal Reconstruction. Coatings 2018, 8, 144.

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