The Influential Factors of Preparation of Waterborne Epoxy Emulsion

A waterborne epoxy emulsion was prepared by the phase inversion method.The influences of emulsifier amount,emulsifying temperature,emulsifying time,and cosolvent amount were investigated.The particle size of the emulsion was characterized by nano particle size analyzer.The results showed that the emulsifier amount was 10%,the emulsifying temperature was 65℃,the emulsifying time was 1.25 h,and the cosolvent amount was 4%,the comprehensive performance of the emulsion was better.The average particle size of the emulsion was 770 nm,the coating hardness was 3H,and adhesion was 1.