Organosilicone concrete antiseptic penetrating agent and preparation method thereof

Abstract

The invention relates to an organosilicone concrete antiseptic penetrating agent and a preparation method thereof. The organosilicone concrete antiseptic penetrating agent is polymer emulsion which is prepared by an emulsion polymerization reaction among copolymerization monomers (including methyl methacrylate, butyl acrylate, metacrylic acid ester phosphate ester and organic siloxane) in the presence of methylacrylic acid serving as a crosslinking agent and the solid content of the polymer emulsion is 50-55%. Due to addition of a phosphate ester functional monomer (Rhodia special monomer), an adhesive force of the coating of the organosilicone concrete antiseptic penetrating agent on a concrete interface can be increased, the coating and the concrete are combined closely, the adhesive force is increased, and antiseptic property is realized; the coating prepared from the organosilicone concrete antiseptic penetrating agent can resist rusting corrosion of a steel member in the concrete and is of a phosphate functional monomer structure with antiseptic property. The concrete penetrating agent can be directly brushed onto a concrete surface and can be closely combined with the concrete, so that the concrete is prevented from being corroded by carbon dioxide, sulphur dioxide, water vapour, oxygen, chloride ion and the like in media such as air and sea water.

Description

technical field [0001] The invention relates to an organosilicon concrete anticorrosion penetrating agent and a preparation method thereof. Background technique [0002] Concrete and reinforced concrete are the most important building materials in construction projects, and are widely used in industry, civil, transportation and various buildings. But buildings made of concrete and reinforced concrete are often attacked by corrosive media during use. A large amount of data shows that quite a lot of concrete structures are destroyed prematurely under the action of physical, mechanical and chemical factors during use, resulting in serious economic losses. The phenomenon of structural failure due to insufficient durability of concrete is increasing, and the durability problem is becoming more and more serious. [0003] Concrete is a porous heterogeneous material in which gas, liquid, and solid phases coexist through cement hydration and solidification of sand and gravel aggreg...

AI Technical Summary

Problems solved by technology

Although pure acrylate emulsion has excellent performance, its water resistance, weather resistance and high and low temperature resistance are poor

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