Pickering emulsions with controllable stability

被引：350

作者：

Melle, S

Lask, M

Fuller, GG ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA

[2] Univ Complutense Madrid, Fac Ciencias Fis, Dept Opt, E-28040 Madrid, Spain

来源：

LANGMUIR | 2005年 / 21卷 / 06期

关键词：

D O I：

10.1021/la047691n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We prepare solid-stabilized emulsions using paramagnetic particles at an oil/water interface that can undergo macroscopic phase separation upon application of an external magnetic field. A critical field strength is found for which emulsion droplets begin to translate into the continuous-phase fluid. At higher fields, the emulsions destabilize, leading to a fully phase-separated system. This effect is reversible, and long-term stability can be recovered by remixing the components with mechanical agitation.

引用

收藏

页码：2158 / 2162

页数：5

相关论文

共 17 条

[1] Stabilization of emulsions by heterocoagulation of clay minerals and layered double hydroxides [J].

Abend, S ;

Bonnke, N ;

Gutschner, U ;

Lagaly, G .

COLLOID AND POLYMER SCIENCE, 1998, 276 (08) :730-737

[2] Pickering emulsions stabilised by Laponite clay particles [J].

Ashby, NP ;

Binks, BP .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (24) :5640-5646

[3] Emulsions stabilised solely by colloidal particles [J].

Aveyard, R ;

Binks, BP ;

Clint, JH .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2003, 100 :503-546

[4]

Binks B.P., 1998, MODERN ASPECTS EMULS

[5] Stability of oil-in-water emulsions stabilised by silica particles [J].

Binks, BP ;

Lumsdon, SO .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1999, 1 (12) :3007-3016

[6] Pickering emulsions stabilized by monodisperse latex particles: Effects of particle size [J].

Binks, BP ;

Lumsdon, SO .

LANGMUIR, 2001, 17 (15) :4540-4547

[7] Influence of particle wettability on the type and stability of surfactant-free emulsions [J].

Binks, BP ;

Lumsdon, SO .

LANGMUIR, 2000, 16 (23) :8622-8631

[8] A POSSIBLE MECHANISM OF STABILIZATION OF EMULSIONS BY SOLID PARTICLES [J].

DENKOV, ND ;

IVANOV, IB ;

KRALCHEVSKY, PA ;

WASAN, DT .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1992, 150 (02) :589-593

[9] Colloidosomes: Selectively permeable capsules composed of colloidal particles [J].

Dinsmore, AD ;

Hsu, MF ;

Nikolaides, MG ;

Marquez, M ;

Bausch, AR ;

Weitz, DA .

SCIENCE, 2002, 298 (5595) :1006-1009

[10] STABILIZATION OF EMULSIONS BY FINE PARTICLES .1. PARTITIONING OF PARTICLES BETWEEN CONTINUOUS PHASE AND OIL-WATER INTERFACE [J].

LEVINE, S ;

BOWEN, BD ;

PARTRIDGE, SJ .

COLLOIDS AND SURFACES, 1989, 38 (04) :325-343