Preparation of Flame Retardant Phase Change Microcapsules and Ink Application

Abstract

AbstractIn this study, a novel type of refractory phase change microcapsules was prepared by in situ polymerization using melamine resin as the wall material and paraffin and chlorinated paraffin as the mixed core material. The microcapsules, linking materials, color paste and additives were mixed in a certain ratio to formulate an ink with dual functions of flame retardant and phase change. The surface morphology, phase change properties and flame retardant properties of the ink were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and heat release rate (HRR). The results showed that the flame retardant phase change microcapsules were successfully prepared, showing a tiny core–shell structure with an average latent heat of phase change of 16.74 J/g, which indicated a good latent heat of phase change. Compared with ordinary inks, flame retardant phase change inks have higher flame retardant efficiency, which is of great significance for the research of functional inks.KeywordsFlame retardant phase change microcapsulesScreen printingInk