Pasty heat-insulating elastic putty

Abstract

The invention discloses pasty heat-insulating elastic putty. The preparation method of the pasty heat-insulating elastic putty comprises the following steps of taking elastic emulsion as film-forming material, silicon-aluminum base ceramic hollow microspheres as heat-insulating filler, shape-stabilized phase change material as energy storage and temperature adjustment filler, and triple superphosphate and French chalk as mineral filler with the cooperation of auxiliary agents and water, firstly, preparing sepiolite shape-stabilized phase change material, secondly, mixing and stirring the elastic emulsion, dispersing agent, antifoaming agent, anti-mildew agent, ethylene glycol, dissolved hydroxypropylmethylcellulose solution, wood fiber, the triple superphosphate, the French chalk and the ceramic hollow microspheres to form an uniform pasty body, thus preparing the pasty heat-insulating elastic putty. In the invention, the putty coating can shade crack of a protective layer, prevent a decorative coating film from cracking, strengthen the heat-insulating effect and improve the energy saving efficiency, and has high percentage elongation at rupture, heat storage and temperature adjustment and control effect, remarkable heat-insulating and cooling effects, excellent physicochemical property and wide market prospect.

Description

[0001] Field of invention [0002] The invention relates to the technical field of building materials, in particular to a paste-like thermal insulation elastic putty. Background technique [0003] At present, with social progress and rapid economic development, the construction industry is becoming more and more prosperous, and the use of construction putty as one of the building materials is also increasing day by day. As a leveling material for the wall protection layer, putty should have suitable bonding strength, excellent crack resistance, water resistance, permeability resistance and air permeability with the external insulation system of the wall. Reduce the occurrence of cracks and improve the indoor thermal environment. At present, my country's building energy consumption accounts for about 35% of the total social energy consumption, and building energy conservation has been listed as one of the top ten energy-saving projects in the country. In order to achieve the ...

AI Technical Summary

Problems solved by technology

According to the performance requirements of flexible anti-crack putty stipulated in JG158-2004 "Powder Polystyrene Particle Exterior Wall External Insulation System", the flexibility is qualified if the putty film bends a rod with a diameter of 50mm and no cracks, while the traditional powdery putty is difficult To meet this requirement, because only when the amount of latex powder reaches 13%, the flexibility of the putty can meet the requirement of no cracks around the diameter ≥ 50mm. , causing difficulties in construction, and the cost performance of this type of powdery putty is not desirable. These factors have caused the traditional powdery putty to not easily meet the standard of flexibility, resulting in cracking of the wall protective layer and reducing the thermal insulation performance of the wall.