Surface properties of low specific surface powders using inverse gas chromatography

被引：25

作者：

Comte, S

Calvet, R

Dodds, JA

Balard, H

机构：

[1] Ecole Mines Albi Carmaux, F-81013 Albi, France

[2] Inst Chim Surfaces & Interfaces, F-68057 Mulhouse, France

来源：

POWDER TECHNOLOGY | 2005年 / 157卷 / 1-3期

关键词：

adsorption; relative humidity; surface acid-base characteristics; inverse gas chromatography; glass beads;

D O I：

10.1016/j.powtec.2005.05.029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Inverse Gas Chromatography (IGC) is used to study the influence of relative humidity and chemical treatment with sulfochromic acid on the surface properties of glass beads. The humidity of the carrier gas to the chromatograph is controlled by means of a specially designed humidity generator to allow investigation of the surface of powders attributed to the progressive coverage by water molecules. The solid under test is glass beads with a very a low specific surface and the properties studied are the specific surface, thermodynamic parameters and the proportions of silanol and siloxane groups on the surface. (c) 2005 Elsevier B.V. All rights reserved.

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页码：39 / 47

页数：9

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