Properties of glycidylamine-type polyurethane adhesives

Glycidylamine-type polyurethane(GAPU) was prepared through the reaction of SKE-1 and self-made polyurethane prepolymer. The structure of GAPU was characterized by Fourier transform infrared(FT-IR) spectroscopy and phase separation was confirmed by differential scanning calorimetry(DSC). The curing process of GAPU cured by m-XDA was monitoring with on-line FT-IR spectroscopy and the thermodynamic stability was analyzed by thermal gravity(TG) analysis. The morphology of the fractured surface of tensile shear strength test specimen was investigated by scanning electron microscopy(SEM). Effects of different contents and different curing agents on mechanical properties of the cured GAPU were studied. The results show that GAPU is fully cured by m-XDA in two hours at 60 ℃, gives good thermal s