ZnO量子点水性喷墨荧光墨水制备及性能  

Preparation and properties of ZnO QDs water-based inkjet fluorescent ink

作　　者：徐国彬 刘洪豪 李洁 郭家奇 王琪 XU Guobin;LIU Honghao;LI Jie;GUO Jiaqi;WANG Qi(College of Light Industry and Food Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;College of Machinery and Architectural Engineering,Taishan University,Tai’an 271000,Shandong,China;Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Products,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)

机构地区：[1]南京林业大学轻工与食品学院,江苏南京210037 [2]泰山学院机械与建筑工程学院,山东泰安271000 [3]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037

出　　处：《化工进展》2023年第6期3114-3122,共9页Chemical Industry and Engineering Progress

基　　金：山东省自然科学基金(ZR2021QE217);国家自然科学基金(32101468)。

摘　　要：以氧化锌量子点(ZnO QDs)为荧光颜料,水为溶剂,聚乙二醇(PEG)为成膜物质合成ZnO QDs水性喷墨荧光墨水,通过分析墨水黏度、表面张力、适印性参数Z值与荧光强度,探究PEG浓度对墨水流变性与荧光性能的影响,获得墨水最佳配方。结果表明,ZnO QDs添加量为30mg/mL,PEG水溶液体积分数为40%时,墨水荧光强度最佳;黏度为7.56mPa·s,表面张力为51.95mN/m,Z值为6.77,满足喷墨印刷墨水的质量指标;接触角为58.71°,无咖啡环现象,附着性能良好。所制备墨水可结合二维码技术、荧光猝灭方案、组合印刷方式实现多重防伪效果,具有实际应用价值。Using zinc oxide quantum dots(ZnO QDs)as fluorescent pigment,water as solvent and polyethylene glycol(PEG)as film forming material,ZnO QDs water-based inkjet fluorescent ink was synthesized.By analyzing ink viscosity,surface tension,printability parameter Z value and fluorescence intensity,the effect of PEG concentration on ink rheology and fluorescence properties was explored,and the optimal ink formulation was obtained.The results showed that the ink fluorescence intensity was the best when the amount of ZnO QDs was 30mg/mL and the volume fraction of PEG aqueous solution was 40%.The viscosity was 7.56mPa·s,the surface tension was 51.95mN/m and the Z value was 6.77,which met the quality index of inkjet printing ink.The contact angle was 58.71°,there was no coffee ring phenomenon,and the adhesion property was good.The prepared ink can combine with two-dimensional code technology,fluorescence quenching scheme and combined printing method to achieve multiple anticounterfeiting effects,and thus had practical application value.

关 键 词：纳米粒子 氧化锌量子点 水性喷墨墨水 荧光性能 防伪应用 

分 类 号：TB34[一般工业技术—材料科学与工程]