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Mechanical stability of superhydrophobic epoxy/silica coating for better water resistance of wood

  • Feng Liu , Zhengxin Gao , Deli Zang , Chengyu Wang EMAIL logo and Jian Li
Published/Copyright: September 18, 2014
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Abstract

A three-step procedure has been developed for superhydrophobic coating on wood based on epoxy/silica materials in combination with hydrophobization. First, the epoxy resin is adhered to wood by immersing the samples into an epoxy resin acetone solution, then amino-functionalized silica particles are anchored by the epoxide groups, and finally, the created surface is modified by octadecyltrichlorosilane (OTS). The superhydrophobic surface not only is water repellent, as shown by the contact angle (CA) tests, but also decreases essentially the wood’s water absorption as determined by a 120-day water immersion test. The good mechanical stability of the coating was confirmed by a sand collision method.


Corresponding author: Chengyu Wang, Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China, e-mail:

Acknowledgments

This research was supported by the Fundamental Research Funds for the Central Universities (DL12EB05-01).

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Received: 2014-3-12
Accepted: 2014-8-18
Published Online: 2014-9-18
Published in Print: 2015-4-1

©2015 by De Gruyter

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  1. Frontmatter
  2. Original Articles
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  19. Obituary
  20. Professor Dr. Arnis Treimanis
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