Thermal-isolating coating

Abstract

The invention discloses a heat-proof paint, which comprises the following parts: 40-50wt% resin adhesive, 3-8wt% solvent and 30-50wt% organic inorganic composite filler, wherein the heat-proof resin contains at least one macromolecule; the organic inorganic composite filler possesses nanometer micro-hole structure to connect resin adhesive effectively to reduce the quantity of resin adhesive, which is compatible with insulating and mechanic property for heat-proof paint.

Description

technical field [0001] The invention relates to a heat-insulating paint, in particular to a heat-insulating paint containing an organic-inorganic hybrid filler. Background technique [0002] Due to the continuous rise of ambient temperature and energy loss, heat insulation and energy saving have become a social issue of concern, and the development of heat insulation coatings has a high potential market prospect. The application range of thermal insulation coatings includes petrochemical storage tanks, grain storage warehouses, ships, vehicles, construction plants and residences, etc. For the current environment of energy shortage, its economic benefits are more significant. [0003] The basic composition of general coatings includes pigments, dyes, resin binders, solvents and fillers, and the special properties of coatings often depend on their fillers. Heat-insulating coatings are filled with fillers with high reflectivity, so that the coating formed has high reflectivity...

AI Technical Summary

Problems solved by technology

At present, the commonly used fillers are inorganic ceramic particles, such as sub-micron hollow ceramic balls or titanium dioxide, but only adding inorganic ceramic particles to provide thermal insulation performance will result in high coating costs, brittle mechanical properties and poor coating coverage.

For example, reducing the content of inorganic ceramic particles and increasing the proportion of resin binder can reduce costs, improve coating coverage and avoid mechanical embrittlement, but it will also affect the thermal insulation properties of coatings.

[0004] Therefore, in order to improve the thermal insulation properties, inorganic ceramic particles and airgel particles can be added to the coating at the same time, but when the amount of airgel particles added is less than 20% of the solid content of the coating, the thermal insulation properties Lifting did not significantly help

If a large amount of airgel particles is added, in addition to the problem of the limitation of the solid content of the coating, and the cost of the airgel particles is too high, the cost of the heat insulation coating cannot be reduced. At the same time, the airgel particles cannot provide the mechanical strength of the coating, and there will be Problems with poor mechanical properties

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