Controlled rate thermal analysis and differential scanning calorimetry of sepiolites and palygorskites

被引：233

作者：

Frost, RL ^{[1
]}

Ding, Z ^{[1
]}

机构：

[1] Queensland Univ Technol, Ctr Instrumental & Dev Chem, Brisbane, Qld 4001, Australia

来源：

THERMOCHIMICA ACTA | 2003年 / 397卷 / 1-2期

关键词：

attapulgite; palygorskite; sepiolite; Rocky Mountain Leather; dehydration; dehydroxylation; controlled rate thermal analysis; differential thermogravimetric analysis;

D O I：

10.1016/S0040-6031(02)00228-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A series of sepiolites, palygorskites and "Rocky Mountain Leather" (RML) clay minerals have been analysed by controlled rate thermal analysis and differential scanning calorimetry (DSC). Eight weight loss steps are observed and are structure and composition dependent. Three dehydration steps and five dehydroxylation steps are observed. The mass spectrometric curve mimicked the differential thermogravimetric (DTGA) curve enabling the detailed determination of the dehydration and dehydroxylation steps. (C) 2002 Published by Elsevier Science B.V.

引用

页码：119 / 128

页数：10

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