Modified asphalt waterproof paint for buildings and production method thereof

Abstract

The invention relates to a modified asphalt waterproof paint for buildings. The modified asphalt waterproof paint is composed of the following raw materials by weight: 50-65 parts of 90# petroleum asphalt; 60-70 parts of water; 25-28 parts of styrene butadiene latex; 5-7 parts of an emulsifier; 2-4 parts of polyvinyl alcohol; 1-3 parts of a coupling agent; 5-7 parts of polyoxypropylene glycerol ether; 3-5 parts of triethyl citrate; 0.1-0.5 part of rosin glycerin ester; 1-3 parts of sodium polyacrylate; and 10-15 parts of modified nano calcium carbonate. The modified asphalt waterproof paint for buildings prepared by the method provided by the invention has good film compactness and high stability, can be used for buildings to form a waterproof layer, which has large bonding strength with the base surfaces of buildings and has good waterproof effect, moreover, after modification, the product has greatly improved water resistance, aging resistance, acid and alkali resistance and other properties, the making process is simple, and the modified asphalt waterproof paint overcomes the shortcomings of tedious making, poor film compactness, poor water resistance and aging resistance in previous water-emulsified asphalt paint.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a modified asphalt waterproof coating for buildings and its production [0002] method. Background technique [0003] The waterproof problem of buildings is not only related to people's work and living environment, but also affects the service life of buildings. Building waterproof materials refer to materials that prevent rainwater, groundwater, water supply and drainage, corrosive liquids, and moisture and steam in the air from intruding into buildings. The parts of the building that need to be waterproofed are mainly the roof, wall, ground and basement, and the construction is mainly carried out through coating, spreading, filling, pouring, bonding and other processes. Since the development of domestic waterproof materials, an industrial system with relatively complete categories and relatively complete production and application technologies has basically been formed. The t...

AI Technical Summary

Problems solved by technology

Although the above-mentioned two documents have modified asphalt to obtain better waterproof coatings, they have not modified the fillers used in the preparation of bitumen waterproof coatings, such as barium sulfate and talcum powder. properties, and unmodified fillers will have obvious disadvantages when filled in various polymers when used in the preparation of coatings: one is that the surface is hydrophilic and oleophobic, and the dispersion in the polymer is poor; the other is that it is compatible with the polymer body Poor binding force, can only play a role in compatibilization

However, the production of water-emulsified asphalt is cumbersome, and the biggest disadvantage is that because it is water-based, its film-forming compactness is poor, so waterproof and aging resistance are poor; and solvent-based asphalt cannot be used indoors due to the presence of a large amount of harmful organic substances.

At present, the water-based asphalt-based waterproof coatings on the market have poor stability, poor alkali resistance and acid resistance, and various technical indicators are difficult to meet the relevant requirements.

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