文献类型：期刊文献

英文题名：Preparation of a robust cellulose nanocrystal superhydrophobic coating for self-cleaning and oil-water separation only by spraying

作者：Huang, Jingda[1,2] Wang, Siqun[1,2] Lyu, Shaoyi[1] Fu, Feng[1]

第一作者：Huang, Jingda

通信作者：Lyu, SY[1];Fu, F[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Univ Tennessee, Ctr Renewable Carbon, Knoxville, TN 37996 USA

年份：2018

卷号：122

起止页码：438-447

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20182405309587);Scopus(收录号：2-s2.0-85048283861);WOS:【SCI-EXPANDED(收录号:WOS:000442067300052)】；

基金：This work was financially supported by the Fundamental Research Funds of CAF (No. CAFYBB2017ZX003), Special Fund for Forest Scientific Research in the Public Welfare (No. 201504603) and USDA National Institute of Food and Agriculture (Hatch project 1012359).

语种：英文

外文关键词：Cellulose nanocrystal (CNC); Superhydrophobic coating; Water contact angle (WCA); Oil-Water separation

摘要：Cellulose nanocrystal (CNC) is usually prepared by acid hydrolyzation of cellulose mainly coming from wood and crops such as cotton, flax, and hemp. A robust superhydrophobic coating was successfully created by two-step spraying method, in which a commercial spray paint is used as adhesive and first sprayed onto the substrates, followed by spraying modified CNC onto the adhesive. The resulting coatings on the wood and glass slide show excellent superhydrophobicity with a water contact angle (WCA) of 163 degrees, outstanding self-cleaning, and high mechanical strength. In addition, the stainless steel mesh coated with adhesive and hydrophobic CNC is efficient and reusable for oil-water separation and shows high resistance to chemical corrosion and UV radiation. This CNC superhydrophobic coating can be applied on unlimited substrate surfaces only by spraying and is beneficial to promote industrial use value of wood and crops.