Elastic emulsion with high adhesive force and preparing method thereof

Abstract

The invention discloses an elastic emulsion with high adhesive force and a preparing method thereof. The elastic emulsion is composed of, by weight, nuclear monomers: 1-10 parts of methyl methacrylate, 4-12 parts of styrene, 0.1-5 parts of diallyl phthalate and 3-25 parts of butyl acrylate; shell monomers: 1-8 parts of methyl methacrylate, 3-10 parts of styrene, 5-12 parts of butyl acrylate, 1-2 parts of methacrylic acid, 0.1-5 parts of glycidyl methacrylate, 0.1-3 parts of organosilicone monomer, 0.1-7 parts of diacetone amide, 0.2-8 parts of adipic dihydrazide, 0.5-2 parts of emulgator, 1-3 parts of initiator and 48-52 parts of water. An outer wall elastic coating prepared from the elastic emulsion has excellent base material adhesive force, the defect that an outer wall elastic coating foams in the presence of water is overcome, and water resistance and stain resistance are realized.

Description

technical field [0001] The invention belongs to the field of emulsions for architectural coatings, and in particular relates to an elastic emulsion with strong adhesion and a preparation method thereof. Background technique [0002] Acrylic emulsion has the advantages of water resistance, transparency, weather resistance and chemical resistance, high strength, etc., and it is cheap, the synthesis process is mature, and the application field is widely in line with environmental protection requirements. Therefore, it has been widely used in the coating industry, especially in the field of architectural coatings. With the wide application and popularization, higher requirements are put forward for the latex in view of the easy cracking, easy staining and unsatisfactory adhesion to the substrate of the existing architectural coatings. In order to overcome the defects of the above-mentioned architectural coatings, The Chinese patent application number is CN98111639.6, which discl...

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Problems solved by technology

[0002] Acrylic emulsion has the advantages of water resistance, transparency, weather resistance and chemical resistance, high strength, etc., and it is cheap, the synthesis process is mature, and the application field is widely in line with environmental protection requirements. Therefore, it has been widely used in the coating industry, especially in the field of architectural coatings. With the wide application and popularization, higher requirements are put forward for the latex in view of the easy cracking, easy staining and unsatisfactory adhesion to the substrate of the existing architectural coatings. In order to overcome the defects of the above-mentioned architectural coatings, The Chinese patent application number is CN98111639.6, which discloses a synthetic technology called pure acrylic elastic emulsion, which solves the shortcoming of easy cracking of architectural coatings to a certain extent, but also has insufficient adhesion to the substrate, and the coating is easy to be exposed to water. Disadvantages of foaming and poor stain resistance