Photochromic paper from wood pulp modification via layer-by-layer assembly of pulp fiber/chitosan/spiropyran
Photochromic paper from wood pulp modification via layer-by-layer assembly of pulp fiber/chitosan/spiropyran
复制标题
纸浆纤维/壳聚糖/螺吡喃逐层组装木浆改性光致变色纸
DOI：
10.1016/j.carbpol.2016.10.014
复制
发表时间：
2017-02-10
影响因子：
11.2
通讯作者：
Chen, Kefu
中科院分区：
文献类型：
--
作者：
Tian, Xiaojun;Wang, Bin;Chen, Kefu
纤维素纤维具有光致变色特性，可用于防伪包装、印刷纸、可重写纸等领域。为了将光致变色性能引入到单个纤维中，采用逐层组装技术在纸浆纤维上设计了由阳离子壳聚糖（CS）和阴离子含羧基螺吡喃（SPCOOH）组成的聚电解质复合层。扫描电镜观察表明，SPCOOH被成功吸附到纤维表面。紫外-可见吸收光谱可以触发lbl处理纤维的光致变色特性，并且lbl处理纤维与纸浆纤维具有良好的相容性。本研究提供了一种将光致变色特性赋予纸张的高效方法。(C) 2016 Elsevier Ltd.版权所有。
Cellulosic fiber introducing with photochromic properties can be used in many fields such as security packaging, printing paper, and rewritable paper. To introduce photochromic property to individual fiber, a polyelectrolyte composite layer composed of cationic chitosan (CS) and anionic carboxyl-containing spiropyran (SPCOOH) on pulp fibers was designed using layer-by-layer assembly technique. Scanning electron microscope observation showed that the SPCOOH was successfully absorbed onto the surface of fiber. The photochromic characteristic of LbL-treated fiber could be triggered by UV-vis absorption spectrum and the LbL-treated fibers had a good compatibility with pulp fibers. This study gives a highly effective method to impart the photochromic characteristic to paper. (C) 2016 Elsevier Ltd. All rights reserved.