STUDY ON MODIFIED IMIDAZOLE/EPOXY CURING SYSTEM

Abstract

Abstract: In this paper, the curing reaction kinetics equation of modified imidazole/epoxy was studied through the DSC to get a view of the influnence of the differernt content of modified imidazole on the Tg of the resin with DSC and DMA. At the same time, the reaction mechanism was studied by infrared analysis. The results showed that the Ea of modified imidazole/epoxy resin system is 60.21kJ/mol and frequency factor A is 2.459 ×10⁷s^-1; the Tg of the modified imidazole/epoxy increased with the increase of modified imidazole first, then reduce with it. The maximum is 163.3℃ when the content is 4%. Modified imidazole deblock and isocyanate react with the hydroxyl groups during the curing process.

Key words: modified imidazole, epoxy, kinetics, glass transition temperature, deblocking

CLC Number:

TB332

LIU Tu-yuan, WANG Jun, SHEN Hui, HU Yan-zhi. STUDY ON MODIFIED IMIDAZOLE/EPOXY CURING SYSTEM[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(3): 26-30.

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