Curing reaction kinetics of epoxy resin using dicyandiamide modified by aromatic amines

EDP Sciences - Tập 12 - Trang 1105-1108 - 2007
Lianxi Chen1, Hua Tian1, Quanwen Liu1, Jun Wang2
1School of Science, Wuhan University of Technology, Wuhan, China
2School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China

Tóm tắt

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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Thông tin xuất bản

EDP Sciences

Tập 12

1105-1108

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