Water-based nano heat insulation material and preparation method thereof

Abstract

The invention relates to a water-based nano heat insulation material for a building and a preparation method thereof. The water-based nano heat insulation material is composed of a porous water-based nano SiO2 suspension emulsion, inorganic nano TiO2, inorganic nano bismuth chloride oxide, hollow glass micro spheres, an inorganic ultramicro material, a functional auxiliary, a fire retardant and deionized water. Compared with the traditional material, a water-based nano heat insulation material coating prepared by the water-based nano heat insulation material provided by the invention is obviously better than the traditional heat insulation plate in heat conductivity coefficient, and the water-based nano heat insulation material provided by the invention has excellent fire resistance and discharges no toxic substance, so that the water-based nano heat insulation material provided by the invention is a novel environment-friendly building heat insulation material. By adopting the water-based nano heat insulation material provided by the invention, a coating process is adopted, a heat insulation technical index can be adjusted according to different building thermotechnical climatic regions, wall structures, thicknesses and technical requirements, a working procedure can be simplified, and good construction effect and the best cost performance of a project are achieved.

Description

【Technical field】 [0001] The invention belongs to the technical field of water-based nanometer building thermal insulation materials. More specifically, the present invention relates to a water-based nano thermal insulation material for building composited by inorganic nanomaterials, glass hollow microspheres, inorganic ultrafine materials and acrylic emulsion. 【Background technique】 [0002] At present, my country's high-energy buildings account for more than 95% of the total building area, and the heating energy consumption per unit area is equivalent to 2 to 3 times that of developed countries with similar climate conditions. Building energy consumption is huge. Therefore, Order No. 143 of the Ministry of Construction of the People's Republic of China "Civil Building Energy Conservation Management Regulations" stipulates that in the planning, design, construction and use of our country's urban construction, building energy conservation standards must be implemented, and b...

AI Technical Summary

Problems solved by technology

In response to these major fire accidents, the Ministry of Housing and Urban-Rural Development and the Ministry of Public Security have clearly stipulated that the thermal insulation materials for the exterior walls of civil buildings in my country must use Class A or B1 combustion performance and buildings with a height less than 24m, and the combustion performance of the insulation materials should not be lower than B2. At the same time, fire isolation belts are set, which greatly limits the application range of traditional building heat insulation materials in construction projects.

Inorganic thermal insulation materials, such as rock wool, mineral wool, glass wool, foam concrete, vitrified microspheres, etc., although the combustion performance reaches Class A, but the thermal conductivity is poor, the thermal insulation performance is not good, and even fails to meet water, it is difficult to use alone Achieve ideal thermal insulation and energy-saving effect

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