Formal kinetic evaluation of reactions with partial diffusion control

被引:64
作者
Flammersheim, HJ
Opfermann, J
机构
[1] Univ Jena, Geowiss Fak, Inst Phys Chem, D-07743 Jena, Germany
[2] NETZSCH Geratebau GMBH, D-95100 Selb, Germany
关键词
epoxy curing; kinetics; diffusion control; DSC; temperature modulated DSC;
D O I
10.1016/S0040-6031(99)00162-8
中图分类号
O414.1 [热力学];
学科分类号
摘要
The use of non-linear regression for a series of measurements with different heating rates or different reaction temperatures (multivariate non-linear regression) allows the reliable formal kinetic evaluation of reactions. As a result, an optimum data reduction is achieved and the practician can predict the reaction behaviour for any reaction conditions. Even reactions with partial diffusion control can now be investigated. in this paper we demonstrate this for DSC measurements of an epoxy resin curing reaction. The only additional requirement is the measurement of a glass transition temperature T-g as function of conversion alpha. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:141 / 148
页数:8
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