Phase-change heat-insulation interior wall coating and preparation method for same

Abstract

The invention discloses phase-change heat-insulation interior wall coating, which is characterized by comprising elastic emulsion, water, dispersing agent, wetting agent, thickener, antiseptic, hollow polyurethane microspheres, nano titanium dioxide and non-transparent polymers, wherein the hollow polyurethane microspheres wrap polyethylene glycol with the molecular weight ranging from 1000-2000. The temperature can be regulated by making full use that the polyethylene glycol generates phase change at the different temperatures to result in physical changes of heat release and heat absorption, light reflection of the nano titanium dioxide plays a role in radiation and heat insulation, and a conductivity coefficient is decreased in the presence of the hollow swelling microspheres and the non-transparent polymers. The phase-change heat-insulation interior wall coating is particularly suitable for indoor external layers by combining the three heat-insulation mechanisms of phase change, radiation and conductivity.

Description

technical field [0001] The invention designs a phase-change thermal insulation interior wall paint and a preparation method thereof, belonging to the technical field of architectural paints. Background technique [0002] Building thermal insulation is an important aspect of saving energy and improving the living and use functions of buildings. Building energy consumption generally accounts for 30-40% of the total energy consumption, and most of it is heating and cooling energy consumption. At present, the external wall thermal insulation technology is developing towards the direction of high efficiency, thin layer, heat insulation, waterproof, and external protection integration. As an important part of building energy conservation, thermal insulation coatings have become a hot topic in industry research and have attracted attention from all over the world. Currently published Chinese patents such as CN101348639A, CN101691469, CN101319121A, CN1045271A, CN1080939A and other r...

AI Technical Summary

Problems solved by technology

This type of coating is used as an exterior wall. Due to the high reflectivity of nano-titanium dioxide to sunlight, it can achieve the effect of heat insulation. However, due to the use of more fillers, the prepared coating has a large specificity and high thermal conductivity, so it cannot be used as Insulation paint for interior walls