In order to improve the water resistance of SrAl₂O₄:Eu²⁺, Dy³⁺, the composite long afterglow material Sr₂MgSi₂O₇:Eu²⁺, Dy³⁺@ SrAl₂O₄:Eu²⁺, Dy³⁺ was prepared by covering uniform and stable Sr₂MgSi₂O₇ sol on SrAl₂O₄:Eu²⁺, Dy³⁺ powder, which was synthesized via traditional solid-state method. The effects of various factors, such as the amount of ammonia, the molar ratio of Sr₂MgSi₂O₇:SrAl₂O₄ and the content of H₃BO₃, on the structure and luminescent properties of Sr₂MgSi₂O₇:Eu²⁺, Dy³⁺@ SrAl₂O₄:Eu²⁺, Dy³⁺ were investigated by the response surface method. The results show that the influence extent on both the initial afterglow brightness and water resistance are as follows:the amount of ammonia> the content of H₃BO₃ > the molar ratio of Sr₂MgSi₂O₇:SrAl₂O₄. When the amount of ammonia, the molar ratio of Sr₂MgSi₂O₇:SrAl₂O₄ and the content of H₃BO₃ is 1.64 mL, 11.10, and 0.006 mol, respectively, both the brightness and water resistance of Sr₂MgSi₂O₇:Eu²⁺, Dy³⁺@ SrAl₂O₄:Eu²⁺, Dy³⁺ are improved, the water resistance is 0.835 (51.82% higher than that of pure SrAl₂O₄) and the initial afterglow brightness can reach 2793 mcd/m² (91.69% higher than that of pure SrAl₂O₄), which were in good agreement with the predicted optimum value of 0.867 and 2720 mcd/m², respectively. Under the optimization conditions, the synergistic action of SrAl₂O₄ with excellent afterglow properties and Sr₂MgSi₂O₇ with high water resistance plays an important role in improving the water resistance without sacrificing brightness. Finally, the water-based light-emitting inks with SMSA as fluorescent pigment exhibit excellent luminescent properties in the dark.

为了提高SrAl ₂ O ₄ :Eu ²⁺ ,Dy ³⁺的耐水性,复合长余辉材料Sr ₂ MgSi ₂ O ₇ :Eu ²⁺ ,Dy ³⁺ @SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺由均匀稳定的Sr ₂ MgSi ₂ O ₇溶胶覆盖在SrAl ₂ O ₄ :Eu ²⁺ , Dy ^{3+上制备而成。}粉末，这是通过传统的固态方法合成的。氨用量、Sr ₂ MgSi ₂ O ₇ :SrAl ₂ O ₄摩尔比、H ₃ BO _{3含量等因素对Sr 2} MgSi ₂ O ₇结构和发光性能的影响:Eu ²⁺ , Dy ³⁺ @ SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺采用响应面法进行了研究。结果表明，对初始余辉亮度和耐水性的影响程度为：氨的量＞H ₃ BO _{3的含量＞Sr 2} MgSi ₂ O ₇：SrAl ₂ O ₄ 的摩尔比。_{当氨的用量、Sr 2} MgSi ₂ O ₇ :SrAl ₂ O ₄的摩尔比和H ₃ BO _{3的含量分别为1.64 mL、11.10和0.006 mol时,Sr 2}的亮度和耐水性均硅镁₂ O ₇ :Eu ²⁺ , Dy ³⁺ @SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺提高，耐水性为0.835（比纯SrAl ₂ O ₄提高51.82% ）和初始余辉亮度可以达到2793 mcd/m ²（比纯SrAl ₂ O ₄高91.69% ），分别与预测的最佳值0.867和2720 mcd/m ²非常吻合。在优化条件下，具有优异余辉性能的SrAl ₂ O ₄与Sr的协同作用₂ MgSi ₂ O ₇具有高耐水性，在提高耐水性而不牺牲亮度方面起着重要作用。最后，以SMSA为荧光颜料的水性发光油墨在黑暗中表现出优异的发光性能。