Abstract
The curing reaction and reaction mechanism of epoxy resin E-44, for which aromatic amine modified dicyandiamide was used as a curing reagent, were investigated by means of differential scanning calorimetry (DSC). The results showed that the modified dicyandiamide had better curing characteristic than unmodified dicyandiamide for epoxy resin E-44, and the curing reaction could be carried out at moderate temperature. Apparent activation energy of the curing reaction was decreased appreciably from 123.829 kJ/mol to 61.550-64.405 kJ/mol, and reaction order was decreased from 0.941 to 0.896–0.900. Curing reaction mechanism also was discussed.
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Foundation item: Supported by the National High Technology Research and Development Program of China (863 Program) (2003AA305920)
Biography: CHEN Lianxi(1964–), male, Associate professor, research direction: fine chemicals, organic and polymeric materials.
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Chen, L., Tian, H., Liu, Q. et al. Curing reaction kinetics of epoxy resin using dicyandiamide modified by aromatic amines. Wuhan Univ. J. of Nat. Sci. 12, 1105–1108 (2007). https://doi.org/10.1007/s11859-007-0104-y
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DOI: https://doi.org/10.1007/s11859-007-0104-y