VISCOELASTIC PROPERTIES OF GEL-EMULSIONS - THEIR RELATIONSHIP WITH STRUCTURE AND EQUILIBRIUM PROPERTIES

被引：57

作者：

PONS, R ^{[1
]}

ERRA, P ^{[1
]}

SOLANS, C ^{[1
]}

RAVEY, JC ^{[1
]}

STEBE, MJ ^{[1
]}

机构：

[1] UNIV NANCY 1,PHYSICOCHIM COLLOIDES LAB,LESOC,CNRS,URA 406,F-54506 VANDOEUVRE NANCY,FRANCE

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 47期

关键词：

D O I：

10.1021/j100149a036

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：

Water-in-oil (w/o) highly concentrated emulsions form in ternary water/nonionic surfactant/hydrocarbon systems whose rheological behavior has been investigated using oscillatory measurements. The affects of temperature, volume fraction, oil-to-surfactant ratio, and brine salinity on the rheological properties have been studied. The shear moduli (Go) and relaxation times (theta0) have been determined using a Maxwell model for a viscoelastic liquid. The shear moduli are a function of gamma (interfacial tension), phi (volume fraction), and R32 (Sauter mean droplet radius). The relaxation times are proportional to eta (continuous-phase viscosity) and inversely proportional to G0 and 1 - phi (continuous-phase volume fraction). The elastic component is related to the structure of the emulsions and the viscous element to the continuous-phase viscosity.

引用

页码：12320 / 12324

页数：5

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