MICROCRYSTALLINE CELLULOSE STABILIZED EMULSIONS

被引：105

作者：

OZA, KP

FRANK, SG

机构：

[1] Ohio State Univ, Columbus, OH, USA, Ohio State Univ, Columbus, OH, USA

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 1986年 / 7卷 / 05期

关键词：

CELLULOSE; -; Applications;

D O I：

10.1080/01932698608943478

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：

Microcrystalline cellulose stabilized emulsions (o/w) were evaluated by means of brightfield and polarized light microscopy, freeze-etch electron microscopy, droplet size analyses and rheologic measurements. These studies indicated that microcrystalline cellulose (Avicel RC591) forms a network around emulsified oil droplets. This structure provides a mechanical barrier at the o/w interface which stabilizes the emulsion without the necessity for decreasing interfacial tension, as in conventional surfactant-stabilized emulsions. Rheologic studies indicated that emulsions containing Avicel RC591 had a considerable degree of thixotropy which contributed to their stability. When Tween 80 was incorporated in this system, oil droplets coalesced indicating that the stability of the emulsion was affected adversely.

引用

页码：543 / 561

页数：19