Curing kinetics and thermal characterization of epoxy resin cured with amidodicarboxylic acids

•Curing properties of epoxy resins crosslinked with amidodicarboxylic acids.•Simultaneous TG/FT-IR/MS analysis of crosslinked resins.•Life time prediction of the crosslinked products. Thermal properties and the curing kinetics of a system based on DGEBA as epoxy resin and two amidodicarboxylic acids...

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Bibliographic Details
Published in:Applied thermal engineering 2017-10, Vol.125, p.285-296
Main Authors: Mustata, Fanica, Tudorachi, Nita
Format: Article
Language:English
Subjects:
Amidodicarboxylic acids
Crosslinking
Curing
Curing kinetics
Epoxy resins
Hardeners
Heat measurement
Infrared radiation
Kinetics
Reaction kinetics
Reaction mechanisms
Thermal analysis
Thermal degradation
Thermal stability
Thermodynamic properties
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Summary:•Curing properties of epoxy resins crosslinked with amidodicarboxylic acids.•Simultaneous TG/FT-IR/MS analysis of crosslinked resins.•Life time prediction of the crosslinked products. Thermal properties and the curing kinetics of a system based on DGEBA as epoxy resin and two amidodicarboxylic acids as hardeners (epoxy ring/carboxylic proton at 1/0.7molar ratio) were investigated using differential scanning calorimetry (DSC) and simultaneous TG/FT-IR/MS analysis. “Thermokinetics-3” software (Netzsch) was used to simulate the curing reaction mechanisms and thermal degradation of the crosslinked products, simultaneously with the kinetic parameters determination. According to data obtained with this program, the crosslinking processes occurred in two or three steps while the thermal processes occurred in three steps, depending on the chemical structure of the crosslinking agents.
ISSN:1359-4311
1873-5606
DOI:10.1016/j.applthermaleng.2017.07.037