Heat-reflecting heat-insulation inorganic composite material as well preparation method and application thereof

Abstract

The invention discloses a heat-reflecting heat-insulation inorganic composite material as well a preparation method and an application thereof. The heat-reflecting heat-insulation inorganic composite material is a micron / nano composite material which takes alumina, titanium oxide and silicon oxide as substrates and is doped with one or a plurality of rare-earth elements such as yttrium, cerium and lanthanum. The inorganic composite material prepared by using a liquid phase method, a liquid phase coating method and a solid phase mixing method can be used for preparing a heat-reflecting thermal-insulation heat-insulation coating. The heat-reflecting heat-insulation inorganic composite material has the beneficial effects that 1) the reflectivity of the heat-reflecting heat-insulation inorganic composite material on a heat ray can be above 90%, the thermal radiation of sun and thermal radiation of other thermal radiation sources can be effectively prevented, ultraviolet ray can be absorbed, and the heat-reflecting heat-insulation inorganic composite material has an ultraviolet ray harm resistant function; 2) the heat-reflecting heat-insulation inorganic composite material is an inorganic solid material which does not contain an organic solvent and has the beneficial effects that is the material is safe and non-toxic, has stable chemical property and stable heat reflecting thermal insulation performance, is easy to store for a long term, and the like; and 3) the preparation technology is simple and easy to operate, the raw material is easy to obtain and cheap, the reaction process is almost free from industrial three wastes, thus the preparation technology has the characteristics of green production and environment-friendly application and is suitable for industrial production.

Description

technical field

[0001] The invention relates to a preparation method and application of a heat-reflective rare earth-inorganic oxide composite micro / nano material and a thermal insulation coating, in particular to a coating capable of shielding solar heat radiation and similar heat radiation, and having the ability to absorb ultraviolet rays and heat insulation. Thermally functional inorganic composite thermal insulation coatings have a reflectivity of more than 90% in the main radiation wavelength range of sunlight. On this basis, the corresponding preparation methods have been studied and related application technologies have been developed. Background technique

[0002] The radiation energy of solar radiation reaching the earth's surface after passing through the atmosphere energy loss is 335~837kJ / cm 2 *a, is the ultimate source of human energy. Classified according to the wavelength of light, ultraviolet rays account for 5%, visible rays account for 45%, and infrared r...

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