Foaming ceramic composite board

Abstract

The utility model discloses a foamed ceramic composite board, which belongs to the technical field of composite boards, is obtained by combining a surface high-reflection heat insulation coating and foamed ceramic, has both reflection heat insulation property and low-conduction heat insulation property, remarkably reduces indoor temperature rise caused by illumination, can realize ultra-low energy consumption, and is high in practicability. The energy-saving effect of a building is effectively improved, the reflective coating with a scaly microstructure is coated on the outermost surface, and scaly particles are directionally arranged in the coating, so that under the same pigment volume fraction, a surface layer can be better covered, the reflective coating shows better reflectivity, hardness and the like compared with a common reflective coating, and the performance of the coating is optimized.

Description

Technical Field

[0001] This utility model relates to a foamed ceramic composite board, belonging to the field of composite board technology. Background Technology

[0002] Against the backdrop of dual carbon emissions, the Ministry of Housing and Urban-Rural Development issued the "14th Five-Year Plan for Building Energy Conservation and Green Building Development," which proposes that by 2025, more than 350 million square meters of existing buildings will be retrofitted for energy conservation, more than 50 million square meters of ultra-low energy consumption and near-zero energy consumption buildings will be constructed, and prefabricated buildings will account for 30% of newly built urban buildings that year.

[0003] For example, CN115897933A discloses a lightweight foamed ceramic composite wall panel, comprising a composite panel, a front plate on the front wall of the composite panel, a wedge on the bottom surface of the front plate, an adhesive plate connected to the rear wall of the front plate, a limiting frame on the outer side of the adhesive plate, an adhesive groove on the inner side of the adhesive plate, a reinforcing plate at the center of the inner side of the adhesive groove, and a vertical hole on the top surface of the reinforcing plate. By creating the adhesive groove, a portion of the composite panel's weight is reduced. The reinforcing plate is fixed vertically by longitudinal reinforcing ribs within the vertical hole, ensuring it does not sway back and forth. The reinforcing ribs are steel wires with a diameter of one to three millimeters. The reinforcing plate's vertical angular movement is limited by transverse reinforcing ribs within the transverse hole. While maintaining the composite panel's toughness, the steel wires used do not add excessive weight, achieving the beneficial effect of reducing the self-weight of the foamed ceramic composite wall panel.

[0004] Based on retrieval and analysis, it is concluded that existing technologies still have shortcomings:

[0005] Foamed ceramics have advantages such as being lightweight, high-strength, fireproof, waterproof, moisture-proof, heat-insulating, sound-insulating, environmentally friendly, stable in performance, and weather-resistant. They can be used as non-load-bearing wall components in prefabricated buildings. Foamed ceramic components often require subsequent decoration, such as applying wallpaper, wall coverings, aluminum composite panels, or aluminum alloy cladding. These traditional decorative methods can only beautify the appearance and do not have much effect on energy conservation and emission reduction.

[0006] Therefore, a foamed ceramic composite board is needed to improve the above-mentioned problems. Utility Model Content

[0007] The main purpose of this utility model is to provide a foamed ceramic composite board that, while possessing the low thermal conductivity and heat insulation properties of foamed ceramics, can also reflect heat insulation, thus meeting the energy-saving and emission-reduction requirements for ultra-low energy consumption in buildings.

[0008] The objective of this utility model can be achieved by adopting the following technical solution:

[0009] A foamed ceramic composite panel, comprising a foamed ceramic matrix as the matrix;

[0010] Both sides of the foamed ceramic substrate are covered with a base coating, and the outside of the base coating is covered with a high-reflectivity heat-insulating coating.

[0011] The preferred foamed ceramic matrix has its pores filled by the primer coating.

[0012] The preferred high-reflectivity heat-insulating coating has a scaly microstructure.

[0013] The preferred high-reflectivity heat-insulating coating has scaly particles that are oriented in the base coating.

[0014] Preferably, the thickness of the base coating on the foamed ceramic substrate is 1-2 mm.

[0015] The preferred adhesive for the high-reflectivity heat-insulating coating is an acrylic coating.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] This utility model provides a foamed ceramic composite board, which is a foamed ceramic composite board obtained by combining a high-reflectivity heat-insulating coating on the surface with foamed ceramics. It simultaneously takes into account reflective heat insulation and low thermal conductivity heat insulation, significantly reducing the increase in indoor temperature caused by sunlight, achieving ultra-low energy consumption, and effectively improving the building's energy-saving effect. The outermost surface is coated with a reflective coating with a scale-like microstructure. Due to the directional arrangement of the scale-like particles in the coating, it can better cover the surface with the same pigment volume fraction, exhibiting better reflectivity, hardness, etc. than ordinary reflective coatings, thus optimizing the coating performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a preferred embodiment of a foamed ceramic composite board according to the present invention;

[0019] Figure 2 This is a schematic diagram of the scale structure of the reflective coating of a preferred embodiment of a foamed ceramic composite board according to the present invention.

[0020] In the figure: 1. Foamed ceramic substrate; 2. Primer coating; 3. High-reflective heat insulation coating. Detailed Implementation

[0021] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0022] like Figure 1 - Figure 2 As shown, this embodiment provides a foamed ceramic composite board, including a foamed ceramic matrix 1 as the matrix;

[0023] The foamed ceramic substrate 1 is covered with a base coating 2 on both sides, and a high-reflectivity heat-insulating coating 3 is covered on the outside of the base coating 2.

[0024] The pores in the foamed ceramic matrix 1 are filled by the primer layer 2;

[0025] The high-reflectivity heat-insulating coating 3 has a scaly microstructure;

[0026] The scaly particles on the high-reflectivity heat-insulating coating 3 are oriented in the base coating 2;

[0027] The thickness of the base coating 2 on the foamed ceramic substrate 1 is 1-2 mm;

[0028] The adhesive for the high-reflectivity heat-insulating coating 3 is an acrylic coating.

[0029] Working principle: The foamed ceramic composite board provided by this utility model is a foamed ceramic composite board obtained by combining a high-reflective heat-insulating coating on the surface with foamed ceramics. It takes into account both reflective heat insulation and low thermal conductivity, significantly reducing the increase in indoor temperature caused by sunlight, achieving ultra-low energy consumption, and effectively improving the energy-saving effect of buildings. The outermost surface is coated with a reflective coating with a scale-like microstructure. Due to the directional arrangement of the scale-like particles in the coating, it can better cover the surface with the same pigment volume fraction, exhibiting better reflectivity, hardness, etc. than ordinary reflective coatings, thus optimizing the performance of the coating.

[0030] Example 1

[0031] like Figure 1-2 As shown; This embodiment provides a foamed ceramic composite panel for building energy conservation, which includes a high-reflectivity heat insulation coating 3, a base coating 2 and a foamed ceramic substrate 1 from top to bottom. The thickness of the base coating exceeds the diameter of the pores on the surface of the foamed ceramic, and the pores on the surface of the foamed ceramic need to be filled. The high-reflectivity heat insulation coating has a scaly microstructure.

[0032] In a preferred embodiment, the foamed ceramic substrate 1 serves as the base material, the base coating 2 is a roofing acrylic waterproof coating, the adhesive for the high-reflectivity heat insulation coating 3 is an acrylic coating, and the high-reflectivity pigment inside is flake-shaped barium sulfate particles. First, a base coating with a thickness of about 1-2 mm is brushed onto the foamed ceramic substrate 1 to ensure that the pores on the surface of the foamed ceramic are filled and a smooth surface is formed. After the base coating 2 dries, the high-reflectivity heat insulation coating 3 is brushed on top of the base coating 2 to obtain a foamed ceramic composite board. When the surface of the foamed ceramic composite board is observed with an optical microscope, a scaly structure formed by flake-shaped barium sulfate particles embedded in the coating matrix can be seen.

[0033] A rectangular sealed space was constructed using foamed ceramics, with one wall consisting of a composite panel coated with a high-reflectivity heat-insulating coating. LED light sources were used to simulate sunlight, illuminating the surface of the foamed ceramic composite panel. A multi-channel temperature measuring instrument was used to simultaneously measure the temperature T1 of the illuminated surface, the air temperature T2 of the sealed space, and the indoor air temperature T3 until the temperature stabilized. After being exposed to sunlight for more than 1 hour, the air temperature of the sealed space only increased by 0.6℃, demonstrating good heat insulation performance.

[0034] Example 2

[0035] like Figure 1-2 As shown; This embodiment provides a foamed ceramic composite panel for building energy conservation, which includes a high-reflectivity heat insulation coating, a base coating and foamed ceramic from top to bottom. The thickness of the base coating exceeds the diameter of the pores on the surface of the foamed ceramic, and the pores on the surface of the foamed ceramic need to be filled. The high-reflectivity heat insulation coating has a scaly microstructure.

[0036] In a preferred embodiment, the foamed ceramic is the substrate 1, the base coating 2 is a roofing acrylic waterproof coating, the adhesive of the high-reflectivity heat insulation coating 3 is an acrylic coating, and the high-reflectivity pigment inside is flake-shaped alumina particles. First, a base coating with a thickness of about 1-2 mm is brushed on the foamed ceramic substrate 1 to ensure that the pores on the surface of the foamed ceramic are filled and a smooth surface is formed. After the base coating 2 dries, the high-reflectivity heat insulation coating is brushed on top of the base coating 2 to obtain a foamed ceramic composite board. When the surface of the foamed ceramic composite board is observed with an optical microscope, a scaly structure formed by flake-shaped alumina particles embedded in the coating substrate can be seen.

[0037] A rectangular sealed space was constructed using foamed ceramics, with one wall consisting of a composite panel coated with a high-reflectivity heat-insulating coating. LED light sources were used to simulate sunlight, illuminating the surface of the foamed ceramic composite panel. A multi-channel temperature measuring instrument was used to simultaneously measure the temperature T1 of the illuminated surface, the air temperature T2 of the sealed space, and the indoor air temperature T3 until the temperature stabilized. It can be seen that after more than 1 hour of prolonged exposure to sunlight, the air temperature of the sealed space only increased by 0.5℃, demonstrating good heat insulation performance.

[0038] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A foamed ceramic composite board, comprising a foamed ceramic substrate (1); Features: Both sides of the foamed ceramic substrate (1) are respectively covered with a primer layer (2), and the outer side of the primer layer (2) is covered with a high-reflection heat-insulating coating (3).

2. The foamed ceramic composite board according to claim 1, characterized in that: The pores of the foamed ceramic substrate (1) are filled with the primer layer (2).

3. The foamed ceramic composite board according to claim 1, characterized in that: The high-reflective heat-insulating coating (3) is a scaly microstructure.

4. The foamed ceramic composite board according to claim 3, characterized in that: The flaky particles on the high-reflective heat-insulating coating (3) are oriented and arranged in the base coating (2).

5. The foamed ceramic composite board according to claim 2, characterized in that: The thickness of the base coating (2) on the foamed ceramic substrate (1) is 1-2 mm.

6. The foamed ceramic composite board according to claim 4, characterized in that: The adhesive of the high-reflective heat-insulating coating (3) is acrylic paint.

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