PMMA/硅铝包覆铝酸锶复合发光材料的制备和发光性能

Study on the Preparation and Luminescent Properties of Polymethyl Methacrylate/(SrAl_2O_4:Eu,Dy) Coated with Si and Al Composite Luminescent Materials Based on Chemical Bond

采用原位乳液聚合法制备了聚甲基丙烯酸甲酯(PMMA)/硅铝包覆(SrAl2O4:Eu,Dy)复合发光材料。通过傅立叶变换红外光谱(FT-IR)和热失重(TGA)测定,研究了复合发光材料的结构,结果表明,复合发光材料中聚合物分子与硅铝包覆(SrAl2O4:Eu,Dy)之间是通过键合的方式结合;通过荧光光谱和发光亮度测试,研究了复合发光材料的发光特性和余辉性能,结果表明,在硅铝包覆(SrAl2O4:Eu,Dy)表面共价结合上PMMA后仍能保持SrAl2O4:Eu,Dy原有的发光性能。

Comparison between coupling agent （KH-560） and coupling agent （KH-560）-compatibilization agent （PP-g-MAH） on eompatibize mechanism of PP/nano-SiOzblends was studied. The mechanism of dispersion and interracial action of PP/nano-SiO2blends was analyzed by scanning electron microscopy （SEM）. Compatible mechanism of PP/nano-SiO2blends was revealed. The physical model of compatible mechanism of blends was also established.