Aggregation stability of colloidal silica sol-polystyrene latex mixtures

被引：1
|
作者：
Shabanova, NA
Tsun-sin, TIY
Musabekov, KB
机构：
[1] DI Mendeleev Chem Technol Inst, Moscow 125190, Russia
[2] Al Farabi State Univ Kazakhstan, Almaty 480012, Kazakhstan
来源：
COLLOID JOURNAL | 2001年 / 63卷 / 05期
关键词：
Polymer; Optical Density; Sedimentation; Polystyrene; Silica Particle;
D O I：
10.1023/A:1012371607559
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：
The aggregation stability of silica hydrosol in the presence of polystyrene latex was studied. Electrolytes added to the system were demonstrated to promote the heteroadagulation of silica particles on the surface of polystyrene globules. Moreover, the aggregation stability of the mixed dispersion increased in an acidic region (heteroadagulation stabilization), but decreased in an alkaline region. It was disclosed that the formation of heteroadagulation complex particles in the acidic region did not decrease the sedimentation stability of the mixed dispersion and was accompanied by a decrease in its optical density.
引用
收藏
页码：649 / 652
页数：4
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