文献类型：期刊文献

英文题名：Green preparation of a cellulose nanocrystals/polyvinyl alcohol composite superhydrophobic coating

作者：Huang, Jingda[1,2] Lyu, Shaoyi[1] Fu, Feng[1] Wu, Yan[2,3] Wang, Siqun[1,2]

第一作者：Huang, Jingda

通信作者：Wang, SQ[1];Wang, SQ[2]

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;[3]Nanjing Forestry Univ, Coll Furniture & Ind Design, Nanjing, Jiangsu, Peoples R China

年份：2017

卷号：7

期号：33

起止页码：20152-20159

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20171603587588);Scopus(收录号：2-s2.0-85017576274);WOS:【SCI-EXPANDED(收录号:WOS:000399244200011)】；

基金：This work was financially supported by the Special Fund for Forest Scientific Research in the Public Welfare (No. 201504603), Tennessee Experimental Station Project #TEN00422 and the Special Fund of Chinese Central Government for Basic Scientific Research Operations in Commonweal Research Institutes (No. CAFINT2014K02). We thank the Department of Food Science & Technology, the University of Tennessee for providing the use of the Drop Shape Analysis System.

语种：英文

外文关键词：Biogeochemistry - Cellulose - Cellulose derivatives - Cellulose nanocrystals - Chemical vapor deposition - Lignin - Organic solvents - Paint spraying - Spray drying - Superhydrophobicity

摘要：Organic solvents, which are often used in the preparation process of superhydrophobic coatings, are volatile and toxic. The inorganic particles also widely used in their preparation are difficult to degrade, which may result in environmental contamination. In this study, commercial lignin-coated cellulose nanocrystal (L-CNC) particles, which are environmentally friendly and biodegradable and formed by CNC solution containing a small amount of lignin in a spray-drying process, uniting strength with a rough surface, were used to provide a good foundation for a superhydrophobic coating due to the different size and irregular surfaces of the particles. A superhydrophobic coating is successfully prepared by spraying a L-CNC/polyvinyl alcohol (PVA) composite paint and then modifying it via chemical vapor deposition (CVD). The resulting coating has not only good superhydrophobicity and self-cleaning properties, but also excellent abrasion resistance. In addition, no organic solvents or inorganic particles were used in the preparation process. Thus, this coating could potentially be used in some applications that require nontoxicity or environmental safety such as food packaging.