文献类型：期刊文献

英文题名：Durable, self-cleaning and superhydrophobic bamboo timber surfaces based on TiO2 films combined with fluoroalkylsilane

作者：Li, Jingpeng[1,2] Lu, Yun[3] Wu, Zaixing[1,2] Bao, Yongjie[1,2] Xiao, Ruichong[1] Yu, Hui[1,2] Chen, Yuhe[1,2]

第一作者：Li, Jingpeng

通信作者：Li, JP[1];Wu, ZX[1];Chen, YH[1]

机构：[1]Chinese Acad Forestry, China Natl Bamboo Res Ctr, 310 Wenyi Rd, Hangzhou 310012, Zhejiang, Peoples R China;[2]Key Lab High Efficient Proc Bamboo Zhejiang Prov, Hangzhou, Zhejiang, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2016

卷号：42

期号：8

起止页码：9621-9629

外文期刊名：CERAMICS INTERNATIONAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000374811600040)】；

基金：The work was financially supported by the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (CAFYBB2016ZD008), the Project of Forestry Science and Technology of the Zhejiang Province (20145Y14 and 2013SY06) and Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province (2014F10047).

语种：英文

外文关键词：Bamboo timber; TiO2; Superhydrophobicity; Mechanical stability; Anticorrosion; Self-cleaning

摘要：Decorative materials, including bamboo timber, have been proposed to exploit their superhydrophobic and self-cleaning properties, but a comprehensive appraisal of their environmental adaptability is still deficient. In this paper, a robust and durable superhydrophobic surface was formed on bamboo timber substrate through a process combining chemical solution deposition and chemical modification. The superhydrophobic surface resulted from micro-nanoscale binary-structured TiO2 films and the assembly of low-surface-energy fluorinated components, which exhibited a water contact angle of 163 +/- 1 degrees and a sliding angle of 3 +/- 1 degrees. The surface maintained superhydrophobicity after mechanical abrasion against 1500 mesh SiC sandpaper for 800 mm at the applied pressure of 1.2 kPa, indicating good mechanical stability. Moreover, the superhydrophobic surface exhibited good chemical stability against both acidic and basic aqueous solutions (e.g., simulated acid rain). After exposure to atmosphere for more than 180 days, the obtained surface still maintained a contact angle of 155 +/- 2 degrees and a sliding angle of 6 +/- 2 degrees, revealing good long-term stability. In addition, the as-prepared superhydrophobic surface exhibited almost complete wet self-cleaning of dirt particles with water droplets. It is believed that the method presented in this study can provide a straightforward and effective route to fabricate a large-area, mechanically robust, anticorrosive and self-cleaning superhydrophobic surface on woody materials for a great number of potential applications. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.