DSC Analysis of the Induction Period in the Vulcanisation of Rubber Compounds |
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Authors: | Šimon P Kučma A |
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Institution: | (1) Department of Physical Chemistry, Faculty of Chemical Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava;(2) Research Institute of Rubber, Matador joint stock company, 020 32 Púchov, Slovak Republic |
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Abstract: | Vulcanisation of rubber compounds was studied by DSC under isothermal and non-isothermal conditions. The parameters of an
Arrhenius-like equation describing the temperature dependence of induction period have been obtained both from isothermal
and non-isothermal measurements. A new method for obtaining the kinetic parameters from non-isothermal measurements, based
on the dependence of onset temperature of vulcanisation peak on heating rate, is presented. Also, a procedure for the evaluation
of temperature difference between the furnace and sample is proposed. It has been shown that the treatment of non-isothermal
DSC measurements gives the kinetic parameters free of systematic errors. The new method can also be used for studying other
reactions exhibiting the induction period.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | differential scanning calorimetry induction period kinetics vulcanisation |
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