Epoxy resins are used widely in industrial applications like powder coating because of their good chemical resistance, low shrinkage and good adhesion. However high level of crosslinking is required for epoxy resin systems to be applicable. Curing agents are used for the crosslinking. Structure of the epoxy and curing agent, concentration of curing agent and the temperature profile of the curing process affects the crosslinking density therefore mechanical properties of the epoxy system. In this study, the effect of curing agent concentration on Tg ,Ea and conversion were investigated by Differential Scanning Calorimetry in the example of various powder coating formulations. Ea calculation and kinetic analysis were done according to the Kissinger and Flynn-Wall- Ozawa equations

Effect of catalyst concentration on acid-epoxy reactions: A powder coating study

253rd National Meeting (2017)

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