Abstract: Three kinds of curing agents for epoxy resin polyamides, which named polyamide sampleⅠ, polyamide sample Ⅱ, polyamide sample Ⅲ, were prepared from maleopimaric acid anhydride by amidation with polyamines(including diethylenetriamine, triethylenetetramine and tetraethylenepentamine). Properties of the cured products of epoxy resin/polyamides were characterized by FT-IR, TGA and tensile tester. It was found that epoxy resin can be cured completely with polyamides at temperature of 25℃ for 6 h, and then at temperature of 80℃ for cured 4 h using a theoretical mass ratios of 100:51,100:45,100:45,respectively. The shear strength of the cured product of epoxy resin/polyamide sampleⅠreached to 21.6 MPa, the thermal decomposition temperatures of the three cured systems were over 300℃. The polyamides would have a wide applications in higher shear strength and heat-resistance products.

Key words: epoxy resin, maleopimaric acid anhydride, diethylenetriamine, triethylenetetramine, tetraethylenepentamine