Dilational rheology of spread and adsorbed layers of silica nanoparticles at the liquid-gas interface

被引：18

作者：

Noskov, B. A. ^{[1
]}

Yazhgur, P. A. ^{[1
]}

Liggieri, L. ^{[2
]}

Lin, S. -Y. ^{[3
]}

Loglio, G. ^{[4
]}

Miller, R. ^{[5
]}

Ravera, F. ^{[2
]}

机构：

[1] St Petersburg State Univ, Dept Colloid Chem, St Petersburg 198504, Russia

[2] CNR, Inst Energet & Interphases, Genoa Dept, I-16149 Genoa, Italy

[3] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan

[4] Univ Firenze, Dipartimento Chim Organ, I-50019 Florence, Italy

[5] MPI Kolloid & Grenzfl Achenforsch, D-14424 Golm, Germany

来源：

COLLOID JOURNAL | 2014年 / 76卷 / 02期

关键词：

AIR-WATER-INTERFACE; SURFACE-PROPERTIES; DYNAMIC PROPERTIES; POLYMER-SOLUTIONS; EMULSIONS; STABILITY; VISCOELASTICITY; MONOLAYERS; ADSORPTION; PARTICLES;

D O I：

10.1134/S1061933X14020057

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：

This short review is devoted to recent achievements in studies of the dilational surface rheological properties of the systems containing complexes of silica nanoparticles with conventional surfactants. It is shown that there is a surfactant concentration range where the dynamic surface elasticity reaches extremely high values up to 1000 mN/m. This result can explain the formation of very stable foams and emulsions containing nanoparticles. In some surfactant concentration ranges the adsorption layer is characterized by a non-linear response to small compressions or expansions of the liquid surface. Possible causes of this behavior and the mechanism of main relaxation processes are briefly discussed.

引用

页码：127 / 138

页数：12

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