Publication: Kinetic study of the cure process at the silica microfibres/epoxy interface using pyrene fluorescence response
Loading...
Identifiers
Publication date
2003-12-20
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Impact
Export
Abstract
In the present work, using the pyrene fluorescence response, the kinetic of the cure process at the interface of a composite material is studied. Silica microfibres were surface coated with 3-aminopropyltriethoxysilane (APTES), labelled with the pyrene group and dispersed in a mixture based on diglycidylether of bisphenol A (DGEBA) and ethylenediamine (EDA). The fluorescence of the pyrene was used to monitor, at different temperatures, the cure process at the epoxy/microfibres interface. A simple kinetic model was discussed from the fluorescence data and an apparent activation energy was obtained (Eₐ=33 kJ/mol). On the other hand, the cure process of the whole mixture was followed by FT-IR and by DSC and their results were compared with those obtained by fluorescence.
Description
Keywords
Fluorescence, Curing, Epoxy, Kinetic
Bibliographic citation
González-Benito, J., Olmos, D., Sánchez, P.G., Aznar, A.J., Baselga, J. (2003). Kinetic study of the cure process at the silica microfibres/epoxy interface using pyrene fluorescence response. Journal of Materials Processing Technology, 143-144, pp. 153-157.