材料学专业英语翻译，急！~~

来源：百度知道 编辑：UC知道 时间：2024/05/26 05:29:01
本文采用无皂乳液聚合结合sol-gel的方法合成了以PS为核、SiO2为壳或PS为核、CeO2为壳的复合微球。首先用无皂乳液制备了聚苯乙烯微球（PS），并以此为内核；再利用正硅乙酸乙酯（TEOS）在氨水催化条件下水解，形成带负电性的二氧化硅，或者利用六水亚硝酸铈、六亚甲基四胺（HMT）水溶液分解出带负电性的氧化铈，均匀的包覆到PS微球表面，形成核-壳结构的PS-CeO2和PS-SiO2复合微球。所制备的复合微球球形好、粒径均匀、单分散性好。利用透射电子显微镜(TEM)、场发射扫描电子显微镜(SEM)、X射线衍射仪（XRD）以及热失重分析仪(TGA)对所得到的PS-SiO2和PS-CeO2核壳结构纳米复合微球进行表征。通过对所得到的PS-SiO2和PS-CeO2核-壳结构纳米复合微球进行表征及讨论研究，得到利用无皂乳液聚合法可以成功制备这两种有机-无机纳米复合微球的结论，并且包覆率较高、包覆效果良好，所制备纳米复合微球粒径均匀、基本上为250nm-300nm左右。

Using emulsifier-free emulsion polymerization methods of sol gel - combined with PS synthesized for nuclear, for the shell or PS is SiO2, CeO2 for shell nanocomposite. First use soap-free emulsion preparation for polystyrene spheres (PS), and the kernel, Reuse are silicon acetic tetraethyl ortho-silicate (TEOS) in ammonia catalytic hydrolysis, formed under the condition of silica, charged by six water or their cerium, six of methylene amine solution HMT (4) into the negatively charged, uniform cerium oxide coated surfaces to PS microspheres, core-shell structure of PS - CeO2 and PS - SiO2 composite microspheres. The composite microspheres spherical, uniform particle size, single good dispersion. By using transmission electron microscopy (TEM), field emission scanning electron microscope (SEM) and X-ray diffraction (XRD) and thermo-gravimetric analyzer (TGA) to get PS - SiO2 and PS - CeO2 core-shell structure nanocomposite were characterized. To get through the PS - SiO2 and PS - CeO