A cure modelling study of an unsaturated polyester resin system for the simulation of curing of fibre-reinforced composites during the vacuum infusion process

Aktas, A., Krishnan, Latha, Kandola, Baljinder K. ORCID: 0000-0002-3621-3724, Boyd, S.W. and Shenoi, R.A. (2014) A cure modelling study of an unsaturated polyester resin system for the simulation of curing of fibre-reinforced composites during the vacuum infusion process. Journal of Composite Materials, 49 (20). pp. 2529-2540. ISSN 0021-9983

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Abstract

This study presents the cure kinetics and the cure modelling of an ambient curing unsaturated polyester (UP) resin system for the simulation of its curing in the vacuum infusion (VI) process. The curing of the thermoset resin system was investigated using the Differential Scanning Calorimetry (DSC) method. The dynamic DSC test measurements were conducted to find out the ultimate heat of reaction and enable experimental conversion determination for the isothermal curing. The empirical autocatalytic cure kinetics model incorporating the Arrhenius law represented the cure behaviour. The results of the cure kinetics study, the cure model, the material properties and the boundary conditions were the inputs in PAM-RTM software to simulate the degree of cure and the temperature during the infusion and the room temperature curing stages. The simulation results were compared with the experimentally measured data. A vacuum infusion experiment involving a non-crimp glass fibre preform was performed in order to identify a typical filling time to aid the simulation, and monitor the curing using thermocouples to validate the temperature simulation. It was shown that the degree of cure and the exothermic temperature of a room temperature curing thermoset resin system in the VI process could be predicted through the steps of this study.

Item Type: Article
Uncontrolled Keywords: unsaturated polyester resin, differential scanning calorimetry, cure kinetics, cure simulation, vacuum infusion process
Divisions: School of Engineering > Engineering
University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 22 Mar 2018 08:47
Last Modified: 22 Mar 2018 08:47
Identification Number: 10.1177/0021998314549820
URI: http://ubir.bolton.ac.uk/id/eprint/1545

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