Preparation method and application of a water-based radiation-reflecting composite heat-insulating coating

Abstract

The invention relates to a preparation method and applications of an aqueous reflective radiation type composite heat insulation paint. The aqueous reflective radiation type composite heat insulationpaint is of a double layer paint layer structure composed of a radiation thermal-insulation paint and a reflective thermal-insulation paint; the radiation thermal-insulation paint is sprayed onto a lower layer; the reflective thermal-insulation paint is sprayed onto an upper layer; the high radiation performance of convenience carbon nanotube and the reflective performance of rutile type titaniumdioxide are combined, reflective thermal insulation effect is achieved by the titanium dioxide at the upper layer; the radiation thermal insulation effect is achieved by the carbon nanotube at the bottom layer. Compared with simple blended single-layer structures, the double-layer structure possesses a following advantage: the reflective effect of rutile type titanium dioxide can be ensured effectively. The aqueous reflective radiation type composite heat insulation paint is low in VOC, is friendly to the environment. The aqueous reflective radiation type composite heat insulation paint possesses excellent reflective performance on visible light and near infrared light, is high in hemispherical emissivity, and excellent in thermal insulation effect, is green, and is friendly to the environment; the preparation method is simple and controllable; construction is convenient; and the aqueous reflective radiation type composite heat insulation paint can be applied on building exterior wallsand petroleum chemical storage tanks based on different requirements.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a preparation method and application of a water-based radiation-reflecting composite heat-insulating coating. Background technique [0002] The high energy of solar radiation has caused the city's heat island effect and the "breathing loss" of oil, and will also accelerate the aging and degradation of materials. Traditional air-conditioning refrigeration and spray cooling waste resources and increase energy consumption; some petroleum product storage tanks only introduce the outer wall insulation layer (such as foam plastic, glass wool, etc.) to cool down, and the heat is easily stored inside the insulation layer and is not easy to release. The internal cooling effect is not very ideal. [0003] Thermal insulation coatings can reduce the harm caused by solar radiation, prevent heat conduction, and reduce the surface and internal temperature of materials. They are widely used in building ...

AI Technical Summary

Problems solved by technology

The infrared emissivity of the prepared coating is ≥85%, but the preparation of filler materials is various, the process is cumbersome, and it needs to go through multiple processes such as extrusion, granulation and high-temperature sintering

However, few studies have combined radiation insulation with the other two insulation methods

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