CAI Liu, LU Xiaoying, ZHENG Lin, YUAN Min, ZHANG Kai
（a. Hubei Key Laboratory for Processing and Application of Catalytic Materials; b. School of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China）
Abstract： SrAl2O4:Eu2+,Dy3+ phosphors with long afterglow were synthesized by the method of combustion. The phosphors were copolymerized with modified epoxy-44, butyl acrylate and methyl methacrylate after surface encapsulation by silicon coupling reagent A-174 to prepare waterborne epoxy-acrylate composite emulsion. The effect of surface encapsulation on the luminescent properties of phosphors was studied and the performance of the composite emulsion was analyzed. The results show that the mean size of a single phosphor particle is 100 nm. The luminescent properties are not changed by surface encapsulation. Both the water resistance and the dispersity of phosphors into the composite emulsion can be improved greatly by surface encapsulation. The film of the waterborne epoxy-acrylate composite emulsion has excellent performances and the afterglow time of the composite emulsion can be up to 18 h.
Keywords: phosphor; surface encapsulation; luminescent property; waterborne coating
中图分类号：TQ422 文献标志码：A
文章编号：1008-5548(2015)02-0068-04
DOI:10.13732/j.issn.1008-5548.2015.02.017
收稿日期：2014-09-17， 修回日期：2014-10-12，在线出版时间：2015-04-17。
基金项目：湖北省自然科学基金项目，编号：2014CFC1098；2013 年湖北省大学生创新创业训练项目，编号：201310514020；湖北省教育厅优秀中青年项目，编号：Q20122707。
第一作者简介：蔡柳（1993—），女，本科生，研究方向为应用化学。E-mail：907707503@qq.com。
通信作者简介：张凯（1979—），女，博士，副教授，研究方向为精细化学品研发。 E-mail: kaizhangchem@aliyun.com。
