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中文摘要：
在水/甲苯/十二烷基硫酸钠/正戊醇形成的四元W/O型微乳液中,通过渗透反应和融合反应分别合成了不同形貌的超细二氧化硅颗粒.利用相图研究了W/O型微乳液系统相行为稳定性与制备条件的关系.讨论了以反相微乳液为媒介,不同制备工艺及R值对产品形貌和粒径大小的影响,并对其机理进行了分析.
英文摘要：
Ultrafine silica particles with different morphologies have been prepared in water/toluene/sodium dodecylsulphate/1-pentanol water in oil microemulsion systems by means of penetration reactions and amalgamation reactions. The phase diagrams for the W/O microemulsion were plotted to study the relationship between the W/O microemulsion composition and the preparation conditions. The effects of varying the process and the value of R （ratio by mass of water： （surfactant ＋ co-surfactant）） on the shape and size of the resulting silica particles were studied. A mechanism for the formation of ultrafine silica by the different reaction pathways has been proposed.
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