The other effect of phase structure on the formulation of aqueous coatings is the effect on the film quality of water-based paint film.The key to the quality of the film is in the mixing process of the aqueous acrylic emulsion particles,to allow the mixed phases to be intensively mixied and the separation of the phases to be separated.If different phases are required to participate in the fusion, you should choose a mixed film-forming aid to achieve the best results.
Many domestic and foreign literatures on water-based acrylic emulsion polymerization, mentioned the core shell and other emulsion particles structure. Such as core shell, half months, multi-core, hollow, and strawberries and other structures have been reported. The description of these structures is helpful to understand the complexity of the structure of the aqueous acrylic emulsion, but the structure of the water-based acrylic emulsion is much more complicated. For example, only a single phase structure of the particles of the emulsion is not present, the particles in the practical aqueous acrylic emulsion are the distribution of various structures, possibly more core shells, possibly more strawberries, etc. Water-based acrylic emulsion manufacturers control the phase structure of the aqueous acrylic emulsion by the choice of monomer, addition order, surfactant Dosage.
The phase structure of the aqueous acrylic emulsion is the technical secret of the emulsion manufacturer, and the information is usually not disclosed. However, supplier will provide its acrylic emulsion recommended additives and proportions . Usually different water-based acrylic emulsion will require different combinations of additives
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