Synthesis and Characterizations of Reactive Diluents for Polyamidoamine with improved Glass Transition Temperature (Tg) at ambient temperature

摘要

The high viscosity of polyamidoamine epoxy hardeners requires the use of a viscosity reducing additive to lower the curative viscosity and permit more convenient processing. The need for reactive diluents for high viscosity epoxy curatives is primarily the result of new and anticipated government regulations for environmentally safe products and lower emissions. Thus, the epoxy industry is in need of reactive diluents for fatty polyamidoamine hardeners which will reduce viscosity, minimizing or eliminating the use of materials which contribute to volatile organic content (VOC) level in an epoxy coating formulation (Ashcroft, W.R.; 1993).