Architectural reflective heat insulation coating and preparation method thereof

Abstract

The invention provides a building reflective heat-insulating coating, which is made of the following raw materials in parts by weight: emulsion: 300-500 parts, reflective functional filler: 50-90 parts, other pigments and fillers: 150-200 parts, hydroxyethyl Cellulose: 1‑2 parts, defoamer: 2‑5 parts, PH regulator: 1‑3 parts, wetting agent: 2‑4 parts, dispersant: 3‑8 parts, thickener: 3‑6 parts leveling agent: 6‑12 parts, preservatives: 1‑3 parts, antifreeze: 8‑15 parts, film-forming aids: 1‑3 parts, deionized water: 300‑500 parts. The present invention also provides its preparation method. The present invention adopts rutile type titanium dioxide, hollow glass microspheres, solid ceramic microspheres, reflective powder, and anti-ultraviolet inorganic powder as fillers to blend together with styrene-acrylic emulsion and pure acrylic emulsion in a suitable ratio. The prepared coating has the advantages of energy saving and environmental protection, high reflectivity of visible light, high reflectivity of near-infrared, high hemispherical reflectivity, high heat insulation index and the like.

Description

technical field [0001] The invention relates to a paint, in particular to a building reflective heat-insulating paint and a preparation method thereof. Background technique [0002] In modern society, people's requirements for architectural painting not only focus on the appearance, but also pay more and more attention to the green environmental protection and low-carbon energy saving of the building, which is the so-called green building. At present, building energy consumption accounts for 30% of the whole society's energy consumption, which is a huge proportion. Energy conservation and emission reduction have become one of the important tasks of the construction industry. Therefore, promoting the integration of building energy-saving decoration has important social and economic significance. [0003] Architectural reflective and heat-insulating coatings are new functional architectural coatings that have been used and paid attention to in recent years. In the hot summer...

AI Technical Summary

Problems solved by technology

Although there are many researches on architectural reflective heat-insulating coatings, there are still many problems in practical applications. For example, some reflective heat-insulating coatings have relatively good solar reflectance, but poor infrared radiation; the color is single, mainly white or light-colored. Paint-based, limited

Some use a single styrene-acrylic emulsion or a single pure acrylic emulsion as a film-forming material, and the prepared reflective heat-insulating coating has low visible light reflectivity, low near-infrared reflectivity, low hemispherical reflectivity, and low thermal insulation index.

Therefore, the existing reflective and heat-insulating coatings for buildings restrict their application in the field of building energy conservation.

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