关键词: 丙烯酸酯微乳液, 乳胶粒径, 加料方式

Abstract:

Acrylate micro-latex containing 1.5% （mass fraction, below the same） emulsifier and 50% polymer with a particle size of 35.6nm and a polydispersity index of 0. 133 was prepared by means of seed emulsion poly- merization. The particle size and its distribution of the micro-latex affected by the feeding modes of the monomer, the emulsifier and the initiator were then investigated. The results indicate that the dropwise addition may result in a large quantity of micelles, a high nucleation rate and a small particle size, and that the particle size decreases with the content increment of the emulsifier and the initiator pre-added before the polymerization.

Key words: acrylate micro-latex, latex particle size, feeding mode