A kind of anion water waterproof coating and preparation method thereof

Abstract

The invention specifically relates to an anionic water-based waterproof paint and a preparation method thereof, belonging to the field of waterproof paints for buildings. According to the invention, the anionic water-based waterproof paint is dissolved in water, then the dissolved paint is directly brushed onto the surface of cement mortar, and an aqua immediately penetrates into the structure of the cement mortar; when cement comes across water, cations are ionized and react with anions in the dissolved paint to produce a crystal insoluble in water to block capillary channels of the cement mortar, so compaction, impervious and waterproof effects are obtained; and the concentration of an activator can be increased, cracks do not occur after painting of the paint, and a technical blank in the world is filled in.

Description

technical field [0001] The invention belongs to the field of architectural waterproof coatings, in particular to an anionic water waterproof coating and a preparation method thereof. Background technique [0002] In industrial and civil reinforced concrete construction projects, due to the poor impermeability and waterproof performance of concrete materials, cracks are prone to occur on the surface of buildings and water leakage occurs. The method of laying waterproof membranes or painting paint on the concrete surface not only has high cost and complicated construction methods, but also has problems such as poor durability and environmental pollution. [0003] Cement-based permeable crystalline waterproof coating is a new type of rigid waterproof material in China. It has the advantages of energy saving, simple production process, low cost, simple construction process, and long-lasting waterproof effect. It has a wide application prospect. However, cement-based permeable c...

AI Technical Summary

Problems solved by technology

However, cement-based permeable crystalline waterproof coatings have the following disadvantages: 1. The active agent is painted on the surface of the base, and the coating on the surface of the base will react most of the active agents, and the active agent that can penetrate into the inside of the coated base structure is very difficult. Therefore, the anti-seepage pressure generated inside the coated base structure is very small, and because the increase in the amount of active agent added will cause cracks in the coating, so it is necessary to add less active agent; 2. Due to the high content of powder filler, it has the same The disadvantage of low bonding strength between the coating bases; 3. Due to the addition of a large amount of powder filler, the product dries too quickly during construction, which brings inconvenience to the painting construction; 4. A large amount of cement and quartz powder are added during production. Powder filler is easy to generate dust in the production process, causing environmental pollution and causing harm to the health of workers; 5. It is easy to agglomerate during storage, difficult to store, and has a short shelf life; 6. Timely maintenance is required after brushing, otherwise it is easy to crack and peel.

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