Heat-insulating and flame-retardant putty for building wall body

Abstract

The invention discloses heat-insulating and flame-retardant putty for a building wall body, which is prepared from the following raw materials in parts by weight: 28-33 parts of cement, 21-29 parts of hollow glass microspheres, 3.5-5 parts of tetraethyl orthosilicate, 31-38 parts of absolute ethanol, 0.35-0.5 parts of 1mol / L hydrochloric acid, 1.6-2.5 parts of template F127, 0.7-1 parts of emulsifier OP-10, 0.4-0.6 parts of sodium bicarbonate, 12-15 parts of silica sol, 0.3-0.5 parts of ammonium persulfate, 4-7 parts of light sand, 9-12 parts of coal ash, 4-6 parts of latex powder, 6-8 parts of polyester fiber, 1.8-2.5 parts of triphenyl phosphate, 3-4 parts of montmorillonite, 1-2 parts of grapheme, 5-6 parts of zinc acetate, 2-3 parts of ethylene glycol monomethyl ether, 0.6-1 parts of monoethanolamine, 13-16 parts of calcium bicarbonate and moderate amount of deionized water. The putty prepared according to the invention has the advantages of high adhesion, good water resistance, good corrosion resistance and crack prevention, and can be widely applied to internal and external walls of various buildings.

Description

technical field [0001] The invention relates to the technical field of building putty, in particular to a heat-insulating and flame-retardant putty for building walls. Background technique [0002] With the development of industry and the improvement of people's living standards, people's demand for energy continues to increase, and the energy gap continues to widen. The construction industry is one of the industries with the fastest growing energy consumption in my country. At present, the total area of ​​existing buildings in my country's urban and rural areas is about 40 billion square meters. During the use of these buildings, the energy consumed in heating, air conditioning, ventilation, lighting, etc. It has accounted for about 30% of the total energy consumption in the country. With the rapid development of the real estate industry in recent years, this proportion is also increasing year by year. According to the experience of developed countries, the proportion of bui...

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Problems solved by technology

[0003] In the article "Study on the preparation and related performance of shale ceramsite and thermal insulation putty", the author uses natural resource shale as the wall thermal insulation material. The article points out that the physical and chemical properties of shale powder are stable, and the thermal conductivity is low, so it is suitable for thermal insulation Functional fillers, and the present invention uses shale powder and vitrified microbeads as functional fillers, cement and rubber powder to form the base material, and adds fibers to trial-produce shale thermal insulation putty, and adopts an orthogonal design to obtain the optimal ratio of each component, The experimental results show that vitrified microspheres and shale have a significant impact on the thermal conductivity of thermal insulation putty, and the amount of vitrified microspheres has a certain influence on the shrinkage rate of thermal insulation putty. Finally, the best parameters are: shale powder: vitrified Microbeads: cement and other additives are mixed according to the mass ratio of 50:22:15:4, and the thermal conductivity of the prepared thermal insulation putty can reach 0.087W / (m•K), although the thermal insulation putty obtained in this invention has good thermal insulation effect, but in actual use it is far from energy saving and consumption reduction, and it cannot meet people's increasing demand for building exterior wall putty materials, and glass beads and other fillers are directly added to putty materials, which has poor dispersion. , cannot effectively exert its own performance, and cannot endow the material with new properties, so the surface functionalization of hollow glass microspheres is the key to improving the performance of hollow glass microsphere composites