摘要
按化学式Sr_(0.994)Al_(2)O:Eu_(0.002)^(2+),Dy_(0.004)^(3+)准备原料,并添加碳酸氢铵作为成孔剂,采用高温固相反应法制备了高发光长余辉材料。探究了成孔剂对长余辉材料晶体结构及余辉性能的影响。以高发光长余辉材料、含氟丙烯酸树脂、颜填料和助剂制备出标线涂料。结果表明,成孔剂的加入不改变长余辉材料的晶体结构,但能有效提高其发光强度。当颜基比为0.50,长余辉材料占填料质量的40%时,涂料中发光中心数量达到最大,发光性能趋于稳定。发光涂层经过日间环境照射后,在暗环境中可持续发光7 h以上。
A luminescent material with high brightness and long afterglow property was synthesized based on the chemical formula Sr_(0.994)Al_(2)O:Eu_(0.002)^(2+),Dy_(0.004)^(3+) by solid-state reaction with ammonium hydrogen carbonate as pore-forming agent at high temperature.The effect of pore-forming agent on crystal structure and afterglow property of the luminescent material was studied.A marking paint was prepared by adding the luminescent material to fluorine-containing acrylic resin with pigments,fillers,and additives.The results showed that the addition of pore-forming agent did not change the crystal structure of the luminescent material,but improved its luminous intensity effectively.The luminous coating prepared with 40%of the luminescent material in fillers at a pigment-to-binder ratio of 0.50 had the maximum number of luminous centers and almost the highest luminous performance,which could continuously emit light in dark environment for more than 7 hours after being irradiated in the daytime.
作者
曹雪娟
单柏林
丁勇杰
杨晓宇
CAO Xuejuan;SHAN Bailin;DING Yongjie;YANG Xiaoyu(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;School of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《电镀与涂饰》
CAS
北大核心
2021年第8期648-653,共6页
Electroplating & Finishing
基金
重庆市技术创新与应用发展专项面上项目(CSTC2019JSCX-MSXM1685)
国家自然科学基金(51978115)
重庆市留学人员回国创业创新支持计划(cx2019015)。
关键词
标线涂料
发光材料
成孔剂
颜基比
余辉性能
marking paint
luminescent material
pore-forming agent
pigment-to-binder ratio
afterglow property
