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Monitoring the Curing of Furan Resins through the Exothermic Heat of Reaction

Chanda, Manas and Dinesh, SR (1978) Monitoring the Curing of Furan Resins through the Exothermic Heat of Reaction. In: Angewandte Makromolekulare Chemie, 69 (1). pp. 85-98.

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Abstract

The curing reaction of furan resins was monitored through the exothermic heat of reaction by means of a simple technique. p-Toluene sulphonic acid dissolved in acetone was used to catalyse the curing reaction. A "cure rate index", defined as the maximum temperature rise per unit time per unit mass of the resin, was used as a measure of the rate of cure. The index value increases exponentially with the catalyst concentration. Interestingly, for the same catalyst concentration the index value also increases significantly with the period of ageing of the catalyst solution. A method is developed for deriving the activation energy for the curing reaction from the exothermic heat data for non-isothermal cure. The activation energy is found to increase with resin viscosity and to decrease exponentially with increasing catalyst concentration. Quantitative expressions are derived relating activation energy with catalyst concentration.

Item Type: Journal Article
Additional Information: The copyright belongs to Huthig & Wepf Verlag, Basel
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 19 Dec 2005
Last Modified: 19 Sep 2010 04:21
URI: http://eprints.iisc.ernet.in/id/eprint/4400

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