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Monitoring the polymerization of a diglycidyl ether bisphenol-A/2,2'-dimethyl-4,4'-methylenebis (cyclohexylamine) matrix with a Fourier transform infrared optical fibre sensor

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journal contribution
posted on 26.05.2009 by Farid Fouchal, J.A.G. Knight, Phill M. Dickens
An optical fibre sensor (OFS) for the online monitoring of the polymerization reaction is described in this paper. The sensor, based on Fourier transform infrared (FT-IR) and differential scanning calorimetry (DSC) analysis, was used to study the reaction between diglycidyl ether bisphenol-A (DGEBA) and 2,20-dimethyl-4,40-methylenebis(cyclohexylamine) (DMMB-CHA). Changes in concentrations of reactants and products were monitored over the curing period at different temperatures by the FT-IR technique, and from DSC runs the variation in the enthalpy of reaction over time for different curing temperatures was determined. Plots of fractional conversions versus time from the two methods were produced and compared. An attempt to deduce glass transition temperatures from the fractional conversion curves produced by FT-IR is also described. This involved the use of the fitting polynomial calculated from the DSC results. As a result, a sensor designed for embedding into a system curing at elevated temperature was constructed and tested.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

FOUCHAL, F., KNIGHT, J.A.G. and DICKENS, P.M., 2004. Monitoring the polymerization of a diglycidyl ether bisphenol-A/2,2'-dimethyl-4,4'-methylenebis (cyclohexylamine) matrix with a Fourier transform infrared optical fibre sensor. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 218 (4), pp. 331-342

Publisher

Professional Engineering Publishing / © IMECHE

Version

VoR (Version of Record)

Publication date

2004

Notes

This is an article from the journal, Proceedings of the Institution of Mechanical Engineers, Part L: Journal Journal of Materials: Design and Applications [© IMechE ]. It is also available at: http://journals.pepublishing.com/content/119775

ISSN

1464-4207

Language

en

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