关键词: 硫化锌; 聚甲基丙烯酸甲酯; 纳米复合材料

Abstract:

Nanocomposite materials have many peculiar optical characteristics and  quantum effect of the different nanoparticals in the matrix,such as optical amplification,photo absorbance fluorescence and nonlinear optical phenomena. And all of these materials have already exhibited immense application foreground,especially in the fields of optical apparatus and optical waveguide. Here the cubic nanocomposite materials ZnS/PMMA with good optical properties and machinability were synthesized by two methods of propolymerizing and swelling. TEM image was used to study ZnS nanoparticles in the PMMA matrix. Electron diffraction results show that the ZnS nanoparticles have a hexagonal structure. The ZnS nanoparticles growing process in the PMMA matrix at respective Zn²⁺ source of microgel(ZnP) and ZnCl₂ was observed. The effect at different time on the preparation of these samples was measured by  using UV-Vis absorption and Fluorescence. The spectra show that PMMA have a new absorption peak at about 280 nm and strong fluorescence phenomenon when it mixed with ZnS.

Key words: Zinc sulfide; Poly(methyl methacrylate); Nanocomposite material