A kind of cement-based energy-saving exterior wall coating specially used for building exterior walls and preparation method thereof

Abstract

The invention discloses a building exterior wall specialized cement-based energy-saving exterior wall coating in the technical field of energy-saving building exterior wall coatings. The cement-based energy-saving exterior wall coating is prepared from Portland cement, kaolin, a polymer emulsion, clean water, porous quartz, a dispersing agent, a thixotropic lubricant, an antifreezing agent, hydroxypropyl-cellulose, a PH regulator and a deforming agent. The invention further provides a preparation method of the building exterior wall specialized cement-based energy-saving exterior wall coating. The preparation method specially includes the steps of S1), preparing a paste mixture; S2), preparing a mixed solution; S3), adding the deforming agent and hydroxypropyl-cellulose; S4), performing grinding and filtering; S5), adjusting the PH value and viscosity of finished products. The cemented-based energy-saving exterior wall coating is excellent in leveling performance, high in covering power and good in flat decoration effect; meanwhile, by the addition of the kaolin, the white value of the coatings is increased, high plasticity is sustained, and problems about peeling of the coatings and surface breaking under action of external forces are solved.

Description

technical field [0001] The invention relates to the technical field of energy-saving building exterior wall coatings, in particular to a cement-based energy-saving exterior wall coating for building exterior walls and a preparation method. Background technique [0002] Building energy conservation is one of the key points of my country's energy conservation work. The most effective measure to save building energy consumption is to strengthen the thermal insulation and heat insulation of building envelopes. At present, the energy-saving building materials used in building exterior wall insulation are mainly heat-insulating coatings, from the earliest inorganic heat-insulating reflective wall coatings, thin-layer heat-insulating reflective coatings, water-based heat-insulating reflective coatings to radiation heat-insulating coatings, vacuum heat insulation Coatings and the newly developed nanoporous super thermal insulation technology applied in the field of thermal insulatio...

AI Technical Summary

Problems solved by technology

However, there is a big difference between the coating material and the structure of the wall, which leads to a big difference in the performance of the two. This difference is easy to cause the coating to fall off, crack, and sag and the surface layer is broken after being impacted by external force. In addition The large area of ​​construction makes its self-gravity very large, which is easy to cause the overall slide, collapse and large area of ​​hollowing

However, the coating construction of the exterior wall alone requires a necessary drying time, which affects the progress of the construction and increases the construction cost.

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