文献类型：期刊文献

英文题名：Preparation and characterization of dual-functional coatings of nanofibrillated cellulose and modified SrAl2O4: Eu, Dy phosphors

作者：Zhang, Longfei[1,2] Lyu, Shaoyi[1,2] Chen, Zhilin[1] Wang, Siqun[1,2]

第一作者：张龙飞;Zhang, Longfei

通信作者：Chen, ZL[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

年份：2018

卷号：349

起止页码：318-327

外文期刊名：SURFACE & COATINGS TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000441492600033)】；

基金：This work was supported by the National Nonprofit Institute Research Grant of CAF (CAFYBB2017ZX003) and USDA National Institute of Food and Agriculture (Hatch project 1012359). Thanks for the financial support of China Scholarship Council (CSC) Program. We also greatly appreciate Prof. Xiaoqing Wang and Miss Lizhuo Kong at CAF for their kindly help on superhydrophobic tests, and Dr. Yun Lu at CAF for her valuable suggestions for enhancing this paper.

语种：英文

外文关键词：Cellulose; Particle; Surface modification; Thin films; Multifunctional composites

摘要：To prepare luminescent and superhydrophobic dual-functional coating materials, SrAl2O4:Eu2+, Dy3+ (SAOED) phosphors were modified with tetraethyl orthosilicate and (3-aminopropyl)trimethoxysilane for enhancing the water resistance and surface activity. Dual-functional coatings were fabricated by blending nanocellulose, 1,2,3,4-butanetetracarboxylic acid (BTCA), and modified SAOED phosphors on the poly(vinyl alcohol) pretreated surfaces of wood substrates using a two-step process combining spraying and chemical vapor deposition. The surface morphology, chemical structure, and mechanical properties of the hybrid coatings were characterized by SEM, energy dispersive X-ray analysis, FTIR, X-ray photoelectron spectroscopy, and abrasion tests. Incorporation of the modified SAOED particles and ONFC induced surface roughness on the wood surface with simultaneous afterglow luminescence and superhydrophobicity after low-energy modification. The water contact angle of the coating could go up to 153 degrees and the slide angle was only 8.5 degrees. The emission spectra for hybrid films showed a slight blue shift (2.8 nm) at around 512 nm compared to the SAOED particles. The obtained superhydrophobic wood materials with long afterglow luminescence can find application in interior decoration, intelligent ceilings, night indicators, or luminous logos and labels.