Heat-insulating elastic putty for building walls

Abstract

The invention discloses heat-insulating elastic putty for building walls. The heat-insulating elastic putty comprises, by weight, 26-31 parts of cement, 19-23 parts of hollow glass beads, 3.5-5 parts of tetraethoxysilane, 31-38 parts of absolute ethyl alcohol, 0.35-0.5 part of 1mol / L of hydrochloric acid, 1.6-2.5 parts of templating agents F127, 0.7-1 part of emulsifying agent OP-10, 0.4-0.6 part of sodium bicarbonate, 12-15 parts of silica sol, 0.3-0.5 part of ammonium persulfate, 6-8 parts of quartz sand, 6-7 parts of diatomite, 5-7 parts of polytetrafluoroethylene, 7-9 parts of flexible rubber powder, 3-4 parts of alkenyl succinic acid starch esters and appropriate parts of deionized water. The heat-insulating elastic putty has the advantages of simplicity in production, low cost, non-existence of mildewing, bulging, shedding and cracking after dampening of wall surfaces, good waterproofing and heat insulating performance and wide application range, thereby being worth popularization.

Description

Technical field [0001] The invention relates to the technical field of building putty, in particular to a building wall thermal insulation elastic putty. 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 increase. The construction industry is currently one of the fastest-growing industries in China’s energy consumption. At present, the total area of ​​existing buildings in China’s urban and rural areas is about 40 billion square meters. These buildings consume energy in heating, air conditioning, ventilation, and lighting during use. Already accounted for about 30% of the country’s total energy consumption. 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 building energy consumption in China’s tota...

AI Technical Summary

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