Seed emulsion and preparation method thereof

Abstract

The invention provides a seed emulsion and a preparation method thereof. The seed emulsion is prepared in an emulsion polymerization mode by taking the following raw materials in parts by weight: 0-100 weight parts of (methyl) acrylic ester, 0-100 weight parts of vinyl benzene, 10-20 weight parts of an emulsifying agent, 2-10 weight parts of a buffering agent, 100-200 weight parts of deionized water and 0.5-3 weight parts of an initiator. The seed emulsion provided by the invention is small in emulsion particle diameter and can be applied to the products with smaller particle diameter; the change of the scope of the particle diameter of the designable emulsion is large; the additive amount is less; the influence on the final products is less; the batch stability of the compounded emulsion is high; the particle diameter of the final products can be freely designed; the particle diameter distribution is narrow; the system viscosity is low; the control on the reaction process is benefited; the system gel dosage is less.

Description

technical field [0001] The invention relates to the field of polymer emulsion synthesis, in particular to a seed emulsion for polymer emulsion polymerization and a preparation method thereof. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection and the shortage of energy, the research, development and promotion of water-based wood coatings have attracted more and more attention. Acrylate emulsions have excellent comprehensive properties, such as light color, gloss retention, color retention, weather resistance, and corrosion resistance. Therefore, they are widely used in coatings, adhesives and other fields. Therefore, the research on the synthesis of acrylate emulsions has also become a hot spot. [0003] In the synthesis process of existing acrylate emulsion: generally adopt pre-emulsion as seed, yet adopt pre-emulsion as seed and there are following deficiencies: [0004] First of all, it is difficult to co...

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Problems solved by technology

[0004] First of all, it is difficult to control the particle size of the final product, and the particle size distribution is wide; secondly, the batch difference in production cannot be effectively controlled, and the final product particle size batch has certain differences; in addition, the pre-emulsion is used as the seed, and the temperature during the production process Larger fluctuations, more prone to gelation during polymerization

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