Curing of DGEBA with MF resins in impregnated and laminated Paper and investigation of the kinetic parameters with DSC and FTIR methods

In this study, the curing reaction of an epoxy system consisting of a diglycidyl ether of bisphenol A (DGEBA) and Melamine formaldehyde (MF) resins as curing agent was investigated during non-isothermal cure reaction by the Kissinger, Ozava and Isoconversional equations. Kinetic analysis of the curing reaction in different ratios of DGEBA/MF was studied by Differential Scanning Calorimetry Technique (DSC) and some parameters such as degree of conversion, pre-exponential factor and activation energy were determined by this method.The results were compared to those obtained for the same epoxy systems using Fourier Transform Infrared (FTIR) analysis. From the infrared spectra using a peak-height method that was based on the ratio of the characteristic to reference absorbance peak, the degree of conversion and rate constant at different isothermal temperatures were calculated. And also we have investigated different ratios of DGEBA/MF resins in impregnated paper by comparing the lamination quality after pressing in wood panel.