Study of Pickering emulsions stabilized by mixed particles of silica and calcite--颗粒学报PARTICUOLOGY

Wang, S., He, Y., & Zou, Y. (2010). Study of Pickering emulsions stabilized by mixed particles of silica and calcite. Particuology, 8(4), 390-393. https://doi.org/10.1016/j.partic.2010.05.002

Study of Pickering emulsions stabilized by mixed particles of silica and calcite

Sha Wang, Yongjun He^*, Yong Zou

Department of Applied Chemistry, Xi’an University of Science and Technology, Xi’an 710054, China

10.1016/j.partic.2010.05.002

Volume 8, Issue 4, August 2010, Pages 390-393

Received 11 August 2009, Revised 7 November 2009, Accepted 13 May 2010, Available online 4 June 2010.

E-mail: yongjhe@yahoo.com.cn

Highlights

Abstract

Pickering emulsions were prepared using mixed particles of silica and calcite as emulsifiers. The effects of the silica content in the mixed particles on the stability and the drop size of the Pickering emulsions were investigated. The results showed that the Pickering emulsions were of the oil-in-water type. With increasing silica content in the mixed particles, the stability and the drop size of the Pickering emulsions decreased. Larger silica particles had more influence on the stability of the emulsions, while smaller ones had more influence on the drop size of the emulsions. The effect of the silica particles on the emulsions was attributed to their adsorptive behavior at the oil–water interfaces of the Pickering emulsions.

Graphical abstract

Keywords

Calcite; Silica; Mixed particles; Pickering emulsions; Stability

文章导读