The Synthesis of the Polyacrylic Emulsion with High Solid Content
Acrylic adhesive with solid content over 50%was synthesized by using MMA,EA,AA,ST,AN,BA,2-Ethylhexyl acrylate as mixed monomers,K12 and S-90 as complex emulsifier,ammonium persulfate as initiator.By changing the amount of water and control conditions of pre-emulsification,the amount of initiator,the level of solid content and other conditions,the paper explored the influence of various factors on the properties of emulsion,and screened the best synthesis conditions.After the emulsion polymerization,the experiment also added redox system initiator to deal with the residual monomer of the acrylic emulsion,and screened out the best use ratio of oxidizing and reducing agents in the various systems.Taking FF6M and TBHP-70 oxidation and reduction system,the best results were obtained when the ratio of FF6M to the emulsion mass was about 0.2%and that of 70%tert-butylhydrogen peroxide was about 0.2%.
polymerizationacrylic emulsionoxidation and reduction
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