Inorganic paste for internal thermal insulation of buildings and preparation method thereof

Abstract

The invention relates to inorganic paste for internal thermal insulation of buildings and a preparation method thereof. The inorganic paste is mainly prepared from the following components in parts by weight: 6-15 parts of inorganic cementing material, 3-6 parts of a polymer emulsion, 20-25 parts of a light heat-insulating material, 0.1-0.5 part of cellulose, 0.5-1 part of dispersible adhesive powder, 0.1-0.3 part of fibers, 0.0-0.1 part of an air entraining agent, 0.04-0.06 part of a film-forming agent, 0.1-0.5 part of a retarder, 0.2-0.5 part of a hydrophobic agent, 0.1-0.5 part of a water reducing agent, 0.1-0.5 part of a thickening agent and 50-70 parts of water. According to the invention, the inorganic paste overcomes the following problems: a plate joint exists after existing internal thermal insulation materials for buildings are spliced; after putty finish paint is painted on the plate joint, cracking is easy to occur, and fireproof performance is poor; and water needs to be added on site for stirring during construction, which leads to inconvenient construction, dust pollution and environmental pollution. The single-component inorganic paste material is prepared by selecting the light heat-insulating filler, the inorganic cementing material and the polymer emulsion and matching the above substances with other components in the system, can be subjected to integral batch scraping, and is free of cracking risk; and the inorganic paste is prefabricated, and construction can be carried out without adding water and stirring on site.

Description

technical field [0001] The invention relates to an inorganic paste for building interior insulation and a preparation method thereof, which is applied to the production of building interior insulation materials. Background technique [0002] In recent years, with the continuous acceleration of my country's urbanization process, the number of housing construction projects has increased, and the problem of building energy consumption has become prominent. Building insulation materials such as polystyrene boards, extruded boards, rigid polyurethane boards, rock wool, etc. It is widely used in external wall insulation system. However, the development trend of existing thermal insulation materials is from external thermal insulation to internal thermal insulation. [0003] At present, polystyrene composite paper-faced gypsum board is mostly used as an internal insulation material, which was once the first choice for internal insulation materials. The polystyrene board is used fo...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the existence of board joints after splicing thermal insulation materials in existing buildings, cracking is easy to occur after the putty topcoat is applied on the board joints, and the fire performance is poor, and there is a need to add water and stir on site during construction, which is not only inconvenient for construction, but also Easy to cause dust pollution and environmental pollution, the present invention provides an inorganic paste for building thermal insulation and its preparation method, by selecting light heat insulation filler, inorganic gelling material and polymer emulsion, and cooperating with other components in the system Separated, prepared into a single-component inorganic paste, which has the advantages of batch scraping as a whole, no risk of cracking, prefabricated in the factory, construction without adding water and stirring on site, and can still be used after storage for 15-30 days, etc.

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