Aerosol type water-based nanometer phase-change energy-storage heat-insulation exterior wall coating and preparation method thereof

Abstract

The invention provides an aerosol type water-based nanometer phase-change energy-storage heat-insulationexterior wall coating and a preparation method thereof. The aerosol type water-based nanometer phase-change energy-storage heat-insulation exterior wall coating utilizes the characteristics that a nanometer phase-change capsule is melted to absorb heat when a temperature is higher than a phase change point, and is reversely crystallized to release heat when the temperature is reduced to be lower than the phase change point; effective balance adjustment is carried out on the temperature of a building object in a high-temperature (summer) state and a low-temperature (winter) state, and therefore, heat insulation effect is effectively improved; and in addition, the durability of the heat-insulation coating can be effectively improved by utilizing the super stain resistance and the super aging resistance of water-based nanometer fluorocarbon resin. The preparation method of the aerosol type water-based nanometer phase-change energy-storage heat-insulation exterior wall coating is simple, an aerosol can of a binary packaging structure is adopted, the problems that the compatibility of conventional water-based polymer resin and a propellant is poor and water-based contents corrode a metal can are solved, and the problem that conventional aerosol products are flammable and explosive is solved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation coatings, in particular to an aerosol-type water-based nanophase-change energy storage thermal insulation exterior wall coating and a preparation method thereof. Background technique [0002] With the rapid development of my country's construction industry and the increasingly prominent energy crisis, in order to achieve my country's established goals of carbon peaking before 2030 and carbon neutrality before 2060, the energy saving and consumption reduction of buildings is particularly important, so we must vigorously Develop green and environmentally friendly building materials. [0003] Buildings consume a lot of energy, which has exceeded 20% of the national energy consumption, most of which are energy consumption for heating in winter and cooling in summer. In this regard, the research and development of building thermal insulation coatings has significant economic, environmental a...

AI Technical Summary

Problems solved by technology

[0004] At present, the popular exterior wall thermal insulation coatings on the market are mainly reflective thermal insulation coatings. This type of coatings uses the infrared rays of sunlight to prevent the conduction of heat so as to achieve the effect of thermal insulation. Generally, the thermal insulation effect is poor. , the phenomenon of poor heat preservation durability (for example, the poor stain resistance of the paint causes the color to darken and the aging and degradation of the film-forming substance, thereby reducing the reflective heat insulation effect, and thus the heat preservation durability is poor)

In addition, the partial repair of thermal insulation coatings on building exterior walls in the market mainly adopts multi-coat system methods for brushing or air spraying repairs. This method is inconvenient for construction, poor adhesion to the substrate, and Large waste of materials and other issues