LIGHT-SCATTERING OF SILICA PARTICLES IN SOLUTION

被引：6

作者：

MOREIRA, JE ^{[1
]}

CESAR, ML ^{[1
]}

AEGERTER, MA ^{[1
]}

机构：

[1] UNIV SAO PAULO,INST FIS QUIM SAO CARLOS,BR-13560 SAO CARLOS,SP,BRAZIL

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 121卷 / 1-3期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/0022-3093(90)90164-H

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Static and dynamic light scattering techniques were used to study aggregation of monodisperse silica microspheres prepared by the Stoeber process. The results show that the Stoeber particles form spheroidal aggregates when dispersed in water solutions. In acidic conditions these aggregates tend to coalesce in polydisperse collections of aggregates. These observations are compared with previous works on silica aggregates prepared by different techniques. © 1990.

引用

页码：394 / 396

页数：3

共 6 条

[1]

FRICKE J, 1989, COMMUNICATION

[2] QUASI-ELASTIC-SCATTERING LINEWIDTHS AND RELAXATION-TIMES FOR SURFACE AND MASS FRACTALS [J].

MARTIN, JE ;

LEYVRAZ, F .

PHYSICAL REVIEW A, 1986, 34 (03) :2346-2350

[3] DIFFUSION IN PROTEIN SOLUTIONS AT HIGH-CONCENTRATIONS - STUDY BY QUASI-ELASTIC LIGHT-SCATTERING SPECTROSCOPY [J].

PHILLIES, GDJ ;

BENEDEK, GB ;

MAZER, NA .

JOURNAL OF CHEMICAL PHYSICS, 1976, 65 (05) :1883-1892

[4] FRACTAL GEOMETRY OF COLLOIDAL AGGREGATES [J].

SCHAEFER, DW ;

MARTIN, JE ;

WILTZIUS, P ;

CANNELL, DS .

PHYSICAL REVIEW LETTERS, 1984, 52 (26) :2371-2374

[5]

Stoeber W, 1968, J COLLOID INTERF SCI, V26, P62

[6] LIGHT-SCATTERING DYNAMIC STUDY OF THE GELATION PROCESS [J].

ZIEMATH, EC ;

PRETTI, WL ;

AEGERTER, MA ;

MOREIRA, JEC ;

LOURS, T ;

ZARZYCKI, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1988, 100 (1-3) :211-214

← 1 →