CHARACTERIZATION OF THE AGGREGATE VOID STRUCTURE OF CARBON-BLACKS BY THERMOPOROMETRY

被引：27

作者：

EHRBURGERDOLLE, F ^{[1
]}

MISONO, S ^{[1
]}

LAHAYE, J ^{[1
]}

机构：

[1] CNRS,CTR RECH PHYSICOCHIM SURFACES SOLIDES,F-68200 MULHOUSE,FRANCE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1990年 / 135卷 / 02期

关键词：

D O I：

10.1016/0021-9797(90)90018-J

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 intra-aggregate void size distribution of carbon blacks dispersed in water or in undecane was measured by thermoporometry. It appears that the interpenetration of the carbon black aggregates is deeper when dispersed in undecane than in water. This effect is attributed to the presence of an adsorbed film of alkane on the surface of carbon black which leads to a smaller sticking coefficient between the primary aggregates in the alkane than in water. The fractal dimension, measured from the void size distribution curves, is in good agreement with that obtained by STEM analysis on isolated aggregates. However, due to the interpenetration of the aggregates, the fractal character of the aggregates is limited to a very narrow range of lengths. © 1990.

引用

页码：468 / 485

页数：18

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