Energy storage thermal insulation building material

Abstract

The invention relates to an energy storage thermal insulation building material which has the main characteristics that a pasty inorganic phase change energy storage material PCM is coated into a hollow high heat conductivity carbon-based functional material to form an energy storage coating body; oil shale residue powder, water glass, sodium hydroxide solution and cement are stirred and uniformly mixed into a slurry material according to the mass ratio; the energy storage coating body is added into the slurry material and the mixture is cast into a shape of a common brick body or other shapes; and the volume ratio of the slurry material to the energy storage coating body is 1:1 to 1:4. The energy storage thermal insulation building material has the advantages that the PCM has large energy storage capability and a low phase transformation point, so that the solid-liquid separation is avoided and the undercooling problem is solved; the carbon-based functional material is used as a coating material, so that the leakage of a liquid phase is prevented and the corrosion problem of the inorganic phase change material is solved; and the application of the oil shale residue powder which is used as a main body building material utilizes the activity effect, the morphological effect and the micro aggregate effect of the oil shale residue powder and aims to increase the absorption rate of the building material for the light as further as possible on the basis of not influencing the compression strength of the building material, achieve the effects of high efficiency, energy saving, heat preservation and energy consumption reducing and ensure the energy storage thermal insulation building material to have high practicality.

Description

technical field [0001] The invention relates to an energy storage and thermal insulation building material, which belongs to the technical field of energy-saving building materials. Background technique [0002] The construction and building materials industry is one of the important pillar industries of the national economy. Energy and environmental issues are closely related to us. With the improvement of people's living standards, the requirements for indoor environment comfort are getting higher and higher. The corresponding building energy consumption (including Air-conditioning and heating energy consumption) will also increase accordingly. Finding a reasonable balance among comfort, energy consumption and environment has become an eternal theme in the field of architectural design and building energy efficiency. The current phase change energy storage materials mainly include organic and inorganic. Organic phase change energy storage materials generally have the char...

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Problems solved by technology

The current phase change energy storage materials mainly include organic and inorganic. Organic phase change energy storage materials generally have the characteristics of less phase change cycles, small thermal conductivity, and low energy storage utilization rate. Large, high thermal conductivity, cheap price, etc., so it has broad development prospects, but it has disadvantages such as phase change separation, supercooling, and certain corrosion; although ordinary brick building materials have high strength, they are not corrosion resistant. Weak, poor light absorption, short holding time, etc.

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