High-quality elastic putty for building external walls and method for preparing high-quality elastic putty

Abstract

The invention provides high-quality elastic putty for building external walls and a method for preparing the high-quality elastic putty, and relates to the field of building materials. The high-quality elastic putty comprises, by weight, 35-50 parts of elastic emulsion, 5-12 parts of shape-stabilized phase change materials, 15-20 parts of talc powder, 0.1-0.5 part of hydroxypropyl methyl celluloses, 0.1-0.5 part of texanol ester alcohol, 1-3 parts of propylene glycol, 1-5 parts of polyvinyl alcohol, 10-18 parts of fly ash floating beads, 1-5 parts of modified guar gum, 0.1-0.2 part of dispersing agents NNO, 0.1-0.2 part of organic silicon defoaming agents, 0.1-0.3 part of chitosan metal complexes and 15-20 parts of water. The high-quality elastic putty for the building external walls and the method have the advantages that the high-quality elastic putty is excellent in various properties and high in elasticity, is extremely high in wall surface bonding property and is free of crackingor dropping; transfer of internal and external heat flow of buildings can be blocked by the high-quality elastic putty, accordingly, the heat-insulation and heat preservation performance of the buildings can be improved, heat-insulation and heat preservation effects can be enhanced, and the energy-saving efficiency can be improved.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to a high-quality elastic putty for building exterior walls and a preparation method thereof. Background technique [0002] Putty is an indispensable material in the construction field. It is located between the wall leveling mortar and the coating layer. Its main purpose is to fill the gaps in the construction surface and correct the gaps in the construction surface and correct the curve deviation of the construction surface. The smooth finish lays the foundation. With the continuous improvement of people’s requirements for decoration materials, the development of putty is also constantly improving. The proportion of functional putty will increase, such as strong water-resistant exterior wall putty, exterior wall putty with thermal insulation performance, and absorption Functional putties such as harmful gases, interior wall putties that can release negative ions, etc. are the develop...

AI Technical Summary

Problems solved by technology

With the continuous improvement of people's requirements for decoration materials, the development of putty is also constantly improving, and the proportion of functional putty will increase, such as exterior wall putty with strong water resistance, exterior wall putty with thermal insulation performance, and energy-absorbing Functional putty such as harmful gas, interior wall putty that can release negative ions, etc. is the development direction of this industry. At present, most of the putty only contains inorganic components such as slaked lime, calcium carbonate, and fly ash, and basically has no stretching elasticity. Slaked lime will react with carbon dioxide in the air to form calcium carbonate, which will cause the volume of the putty to expand, causing the wall to crack and cause wall leakage. Calcium carbonate, fly ash, etc. will expand with heat and contract with cold, and will also produce pores for a long time. Unsightly also endangers the normal daily life of residents

Images