Preparation of silica particles in emulsion systems

被引:3
作者
Jesionowski, T [1 ]
机构
[1] Poznan Univ Technol, Inst Chem Technol & Engn, PL-60965 Poznan, Poland
关键词
highly dispersed silicas; emulsions; non-ionic surfactants; precipitation process;
D O I
10.1081/DIS-100106941
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Highly dispersed silicas were obtained in the process of precipitation from sodium metasilicate solution, using hydrochloric acid in the emulsion medium. Optimum emulsion composition and optimum parameters of silica precipitation were defined. Physicochemical and structural properties of the obtained products were evaluated. Studies were also performed on morphology, dispersion and surface character of highly dispersed substances. The particles obtained manifested strictly defined hydrophilic/hydrophobic properties. They should find broad application in several branches of industry.
引用
收藏
页码:363 / 371
页数:9
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