Study on Properties of Microemulsion AEO-9/Butanol/Cyclohexane/Salt Aqueous Solution

Chen Yongjie¹，QIU Guanming³，Tian Yiguang⁴，Sun Yanbin¹，XIAO Linjiu¹，Fang Li²

(1.School of Material and Metallurgy, Northeast University, Shenyang 110006, China;
2.School of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China;
3.Department of Materials Science and Engineering, Changchun College of & Optics Fine Mechanics, Changchun 130022, China;
4.Department of Chemistry, Wenzhou University, Wenzhou 325027, China;
5.College of Materials Science and Engineering, Jilin University, Changchun 130026, China)

Abstract:The microemulsion AEO-9/butanol/cyclohexane/nitrate aqueous solution (or ammonium salt aqueous solution) was studied, which was used as ''micro-reactor'' in preparing long afterglow phosphor materials SrAl2O4: Eu2+ ,Dy3+. The phase behavior of microemulsion was investigated. The radius of inner water droplet Rw and the change of standard free energy ΔG*o→i were obtained by means of dilution method and theoretical calculation. The result shows that with the increase of W/S, the area of microemulsion region decreases, Rw and ΔG*o→i increase and the microemulsion stability decreases. The structure change and formation area of microemulsion AEO-9/butanol/cyclohexane/nitrate aqueous solution ( or ammonium salt aqueous solution) were offered for the adoption of a synthesis method with newly high efficiency and utility. The particular size and its distribution theory gist, fluorescence life-span, and quenching concentration parameter data were expected. A new approach was explored for finding a new preparation method of rare earths afterglow materials and increasing luminescence intensity without crashing.

Key words:materials synthesis and machining technics; microemulsion; phase chart; radius of inner water droplet; free energy;

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