Rheological and thermal behaviour of DGEBA/EA and DGEHQ/EA epoxy systems crosslinked with TETA
作者： Fanica Mustata , Ioan Bicu
DOI: 10.1016/S0142-9418(00)00072-6
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摘要: Abstract Isothermal variation of the viscosity has been investigated in temperature range 20–60°C for diglycidyl ether bisphenol A/epoxy aniline/triethylenetetramine (DGEBA/EA/TETA) and hydroquinone/epoxy aniline triethylenetetramine (DGEHQ/EA/TETA) systems. The versus time determined using a ‘Rheotest 2.1’ viscometer equipped with cone plate geometry (36 mm diameter 0.3° angle) at shear rate 1 s−1. cure kinetics were studied DSC technique. thermal behaviour cured products was by thermogravimetric analysis MOM Budapest derivatograph. activation energies curing reaction calculated from gel have values between 18.78 kJ mol−1 DGEBA/EA/TETA 60.93 DGEHQ/EA/TETA system. present good stability, decomposition 96.46 93.70
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