Heat storage insulation using waste activated carbon, building insulation plate, and manufacturing method thereof

Abstract

The present invention relates to a thermal storage insulation material, a building insulation panel, and a method for manufacturing the same. In particular, it relates to a thermal storage insulation material and a building insulation panel using spent activated carbon in which a phase change material (PCM) is adsorbed inside the spent activated carbon, and a method for manufacturing the same. The heat storage thermal insulation material using spent activated carbon according to the present invention comprises: spent activated carbon having a plurality of pores formed therein; a multilayer phase change material adsorbed in the pores; and a coating layer coating the surface of the spent activated carbon plate, wherein the pores formed in the spent activated carbon are composed of medium pores that are larger in size than the pores of the new activated carbon.

Description

Technology Field

[0001] The present invention relates to a thermal storage insulation material, a building insulation panel, and a method for manufacturing the same. In particular, it relates to a thermal storage insulation material and a building insulation panel using spent activated carbon in which a phase change material (PCM) is adsorbed inside the spent activated carbon, and a method for manufacturing the same. Background Technology

[0002] Conventional carbon materials supporting phase change substances primarily use new activated carbon, and after adsorbing a single phase change substance inside the new activated carbon, a simple resin coating is applied to prevent leakage of the phase change substance.

[0003] There were limitations regarding the storage capacity and long-term stability of phase change materials.

[0004] In particular, single adsorption and single coating methods have a high risk of phase-change material leakage upon repeated use, and also entail high material costs and environmental burdens.

[0005] Meanwhile, regenerated spent activated carbon has a well-developed mesopore structure, making it advantageous for storing phase change materials; however, there is currently a lack of technology to utilize it effectively. Prior art literature

[0006] Registered Patent 10-2631303 The problem to be solved

[0007] The present invention aims to solve the aforementioned problems by providing a thermal storage insulation material and an insulating panel for construction using spent activated carbon, which can effectively store phase change materials and prevent leakage while utilizing spent activated carbon, as well as a method for manufacturing the same. means of solving the problem

[0008] To achieve the above objective, the heat storage thermal insulation material using spent activated carbon according to the present invention comprises: spent activated carbon having a plurality of pores formed therein; a multilayer phase change material adsorbed in the pores; and a coating layer coating the surface of the spent activated carbon plate, wherein the pores formed in the spent activated carbon are composed of medium pores that are larger in size than the pores of the new activated carbon.

[0009] The above phase change material comprises a first phase change material of low viscosity adsorbed inside the spent activated carbon; and a second phase change material of high viscosity adsorbed inside the spent activated carbon and having a higher viscosity than the first phase change material; wherein the first phase change material penetrates deeper into the interior from the surface of the spent activated carbon than the second phase change material to form a multilayered phase change material layer.

[0010] The coating layer comprises: a first coating layer coated on the surface of the spent activated carbon and made of a hydrophilic polymer resin; and a second coating layer coated on the surface of the first coating layer and made of a hydrophobic polymer resin.

[0011] The thickness of the second coating layer is made thicker than the thickness of the first coating layer.

[0013] In addition, to achieve the above objective, the building insulation panel of the present invention is characterized by being formed by mixing a heat storage insulation material and an inorganic binder, wherein the heat storage insulation material is composed of the heat storage insulation material described above, and the inorganic binder is composed of one or more of cement, gypsum, and clay.

[0015] In addition, to achieve the above objective, the method for manufacturing a thermal storage insulation material using spent activated carbon according to the present invention comprises: a contaminant removal step for removing contaminants present in spent activated carbon having a plurality of pores formed therein; an adsorption step for adsorbing a phase change substance into the pores of the spent activated carbon; and a coating step for coating the surface of the spent activated carbon with a resin; wherein the pores formed in the spent activated carbon are composed of medium pores larger in size than the pores of the new activated carbon, and in the adsorption step, different phase change substances are sequentially adsorbed into the interior of the spent activated carbon so that the phase change substances form a multilayer structure within the spent activated carbon.

[0016] The above adsorption step comprises: a first adsorption step of adsorbing a first phase change material of low viscosity into the interior of the spent activated carbon; and a second adsorption step of adsorbing a second phase change material of high viscosity, which has a higher viscosity than the first phase change material, into the interior of the spent activated carbon on which the first phase change material has been adsorbed; wherein the first phase change material penetrates deeper into the interior from the surface of the spent activated carbon than the second phase change material, so that the phase change material forms a multilayer structure.

[0017] The above coating step comprises: a first coating step of forming a first coating layer made of a hydrophilic polymer resin on the surface of the spent activated carbon; and a second coating step of forming a second coating layer made of a hydrophobic polymer resin on the surface of the first coating layer.

[0018] The thickness of the second coating layer is made thicker than the thickness of the first coating layer.

[0020] In addition, to achieve the above objective, the method for manufacturing a thermal insulation panel for construction according to the present invention comprises: a step of manufacturing a thermal storage insulation material; and a molding step of mixing the manufactured thermal storage insulation material with an inorganic binder and molding it into a panel; wherein the step of manufacturing the thermal storage insulation material is performed using the thermal storage insulation material manufacturing method described above, and the inorganic binder is characterized by being composed of one or more of cement, gypsum, and clay. Effects of the invention

[0021] According to the heat storage insulation material and building insulation panel using spent activated carbon of the present invention as described above, and the method for manufacturing the same, the following effects are achieved.

[0022] The present invention can produce an inexpensive and eco-friendly thermal storage insulation material by utilizing discarded spent activated carbon.

[0023] Furthermore, the present invention utilizes a mesopore structure formed in spent activated carbon to increase the storage capacity of phase change materials compared to existing materials, thereby providing superior performance compared to existing phase change material adsorption materials.

[0024] In addition, since the phase change material is adsorbed in a stepwise multilayer structure inside the spent activated carbon, the leakage prevention performance (storage stability) and heat storage efficiency of the phase change material can be improved compared to the single structure of the existing phase change material.

[0025] In addition, since the coating layer is formed as a hydrophilic and hydrophobic dual coating, leakage of the phase change material is completely prevented, thereby ensuring long-term stability and durability against the external environment. Brief explanation of the drawing

[0026] FIG. 1 is a comparative diagram of spent activated carbon and new activated carbon according to an embodiment of the present invention, FIG. 2 is a diagram illustrating the manufacturing process of spent activated carbon according to an embodiment of the present invention. Specific details for implementing the invention

[0027] The thermal storage insulation material using spent activated carbon of the present invention comprises spent activated carbon (10), a phase change material (PCM, 20), and a coating layer (30).

[0028] The above-mentioned spent activated carbon (10) is activated carbon that has been discarded after the use of new activated carbon, and has a number of pores (11) formed inside.

[0029] The pores (11) formed in the above-mentioned spent activated carbon (10) are composed of medium pores that are larger in size than the pores of the new activated carbon.

[0030] Since the spent activated carbon (10) undergoes a regeneration process several times, the existing pore structure (11) collapses and medium pores develop.

[0031] Figure 1 shows the internal structure of activated carbon before regeneration and activated carbon after regeneration.

[0032] It can be seen that the pores of the activated carbon after regeneration are more developed than those of the activated carbon before regeneration.

[0033] The above phase change material (20) is filled into and adsorbed into the pores (11) formed inside the waste activated carbon (10).

[0034] The above-mentioned phase change material (20) has a multilayer structure in which different phase change materials are adsorbed stepwise with a time difference.

[0035] Specifically, the phase change material (20) is composed of a first phase change material (21) and a second phase change material (22), as shown in FIG. 2.

[0036] The first phase change material (21) has low viscosity and is adsorbed inside the spent activated carbon (10).

[0037] The second phase conversion material (22) is composed of a high viscosity that is higher than that of the first phase conversion material (21) and is adsorbed inside the spent activated carbon (10).

[0038] First, the first phase change material (21) of low viscosity is deeply adsorbed into the pores (11) of the spent activated carbon (10), and then the second phase change material (22) of high viscosity is adsorbed into the pores (11) of the spent activated carbon (10).

[0039] As a result, the first phase change material (21) penetrates deeper into the interior from the surface of the spent activated carbon (10) than the second phase change material (22), forming a multilayer structure of phase change material (20).

[0040] The above-mentioned phase change material (20) is composed of paraffin, etc.

[0041] The coating layer (30) coats the surface of the closed active plate on which the phase change material (20) is adsorbed.

[0042] The above coating layer (30) is composed of a first coating layer and a second coating layer.

[0043] The first coating layer is coated on the surface of the spent activated carbon (10) and is made of a hydrophilic polymer resin (PVA, etc.).

[0044] The second coating layer is coated on the surface of the first coating layer and is composed of a hydrophobic polymer resin (epoxy, silicone resin, etc.).

[0045] The thickness of the second coating layer is made thicker than the thickness of the first coating layer.

[0046] The first coating layer is made of a hydrophilic polymer resin and is thinly coated, thereby preventing adhesion to the surface of the spent activated carbon (10) particles and movement of the internal phase change material (20).

[0047] By thickly coating the second coating layer, which is made of a hydrophobic polymer resin, on the surface of the first coating layer, external leakage of the phase change material (20) can be prevented.

[0048] As described above, the present invention can produce an inexpensive and eco-friendly heat storage insulation material by utilizing discarded waste activated carbon (10).

[0049] In addition, the present invention utilizes a medium-pore structure formed in spent activated carbon (10) to increase the storage capacity of the phase change material (20) compared to the existing one, thereby providing superior performance compared to the existing phase change material (20) adsorption material.

[0050] In addition, since the phase change material (20) is adsorbed in a stepwise multilayer structure inside the spent activated carbon (10), the leakage prevention performance (storage stability) and heat storage efficiency of the phase change material (20) can be improved compared to the single structure of the existing phase change material (20).

[0051] In addition, since the coating layer (30) is formed as a hydrophilic and hydrophobic double coating, leakage of the phase change material (20) can be completely prevented, thereby ensuring long-term stability and durability against the external environment.

[0053] The building insulation panel of the present invention is formed by mixing a heat storage insulation material and an inorganic binder.

[0054] The above-mentioned thermal storage insulation material is composed of the thermal storage insulation material of the present invention described above.

[0055] The above-mentioned inorganic binder is composed of one or more of cement, gypsum, and clay.

[0056] After mixing the above heat storage insulation material and inorganic binder, it is formed into a plate.

[0057] The above-mentioned architectural insulation panels are utilized as interior or exterior building materials, effectively reducing heating and cooling energy consumption and increasing indoor temperature stability.

[0059] Meanwhile, the method for manufacturing a heat storage insulation material using spent activated carbon according to the present invention comprises a contaminant removal step, an adsorption step, and a coating step.

[0060] The above pollutant removal step removes pollutants present in spent activated carbon (10) having multiple pores (11) formed inside.

[0061] This allows you to remove contaminants by putting spent activated carbon (10) into a vacuum oven and operating the vacuum oven.

[0062] As described above, the pores (11) formed in the spent activated carbon (10) are composed of medium pores that are larger in size than the pores (11) of the new activated carbon.

[0063] The above adsorption step adsorbs a phase change material (20) into the pores (11) of the spent activated carbon (10).

[0064] In the above adsorption step, different phase change materials (20) are sequentially adsorbed inside the spent activated carbon (10) so that the phase change materials (20) form a multilayer structure inside the spent activated carbon (10).

[0065] The above adsorption step consists of a first adsorption step and a second adsorption step.

[0066] The first adsorption step is a step of adsorbing a first phase change material (21) of low viscosity inside the spent activated carbon (10).

[0067] The second adsorption step is a step of adsorbing a second phase conversion material (22) with a higher viscosity than the first phase conversion material (21) inside the spent activated carbon (10) on which the first phase conversion material (21) has been adsorbed.

[0068] The first phase change material (21) penetrates deeper into the interior from the surface of the spent activated carbon (10) than the second phase change material (22), so that the phase change material (20) forms a multilayer structure.

[0069] The above coating step is a step of coating the surface of the spent activated carbon (10) with resin.

[0070] The above coating step consists of a first coating step and a second coating step.

[0071] The first coating step is a step of forming a first coating layer made of a hydrophilic polymer resin on the surface of the spent activated carbon (10).

[0072] The second coating step is a step of forming a second coating layer made of a hydrophobic polymer resin on the surface of the first coating layer.

[0073] At this time, the thickness of the second coating layer is coated to be thicker than the thickness of the first coating layer.

[0075] The method for manufacturing a thermal insulation panel for construction according to the present invention comprises a step of manufacturing the thermal storage insulation material and a molding step of mixing the manufactured thermal storage insulation material with an inorganic binder and molding it into a panel.

[0076] At this time, the above-mentioned inorganic binder is composed of one or more of cement, gypsum, and clay.

[0078] The heat storage insulation material and building insulation panel of the present invention can be manufactured through the above manufacturing method.

[0080] The heat storage insulation material using spent activated carbon, the building insulation panel, and the method for manufacturing the same according to the present invention are not limited to the aforementioned embodiments and can be implemented with various modifications within the scope permissible by the technical concept of the present invention. Explanation of the symbols

[0081] 10: Spent activated carbon, 11: Pores, 20 : Phase change material, 21 : First phase change material, 22 : Second phase change material, 30 : Coating layer.

Claims

Claim 1 A heat storage insulation material using spent activated carbon, comprising: spent activated carbon having a plurality of pores formed therein; a multilayer phase change material adsorbed in the pores; and a coating layer coating the surface of the spent activated carbon, wherein the pores formed in the spent activated carbon are composed of medium pores larger in size than the pores of the new activated carbon. Claim 2 A heat storage insulation material using spent activated carbon according to claim 1, wherein the phase change material comprises: a first phase change material of low viscosity adsorbed inside the spent activated carbon; and a second phase change material of high viscosity adsorbed inside the spent activated carbon and having a higher viscosity than the first phase change material, wherein the first phase change material penetrates deeper into the interior from the surface of the spent activated carbon than the second phase change material to form a multilayered phase change material layer. Claim 3 A heat storage insulation material using spent activated carbon, characterized in that, in claim 1, the coating layer comprises: a first coating layer coated on the surface of the spent activated carbon and made of a hydrophilic polymer resin; and a second coating layer coated on the surface of the first coating layer and made of a hydrophobic polymer resin. Claim 4 A heat storage insulation material using spent activated carbon according to claim 3, characterized in that the thickness of the second coating layer is thicker than the thickness of the first coating layer. Claim 5 A thermal insulation panel for construction, characterized in that it is formed by mixing a thermal insulation material and an inorganic binder, wherein the thermal insulation material is composed of the thermal insulation material of any one of claims 1 to 4, and the inorganic binder is composed of one or more of cement, gypsum, and clay. Claim 6 A method for manufacturing a heat storage insulation material using spent activated carbon, comprising: a contaminant removal step for removing contaminants present in spent activated carbon having multiple pores formed therein; an adsorption step for adsorbing a phase change substance into the pores of the spent activated carbon; and a coating step for coating the surface of the spent activated carbon with a resin; wherein the pores formed in the spent activated carbon are composed of medium pores larger in size than the pores of the new activated carbon, and in the adsorption step, different phase change substances are sequentially adsorbed into the interior of the spent activated carbon so that the phase change substances form a multilayer structure within the spent activated carbon. Claim 7 A method for manufacturing a heat storage thermal insulation material using spent activated carbon according to claim 6, wherein the adsorption step comprises: a first adsorption step of adsorbing a first phase change material of low viscosity inside the spent activated carbon; and a second adsorption step of adsorbing a second phase change material of high viscosity, which has a higher viscosity than the first phase change material, inside the spent activated carbon on which the first phase change material has been adsorbed, wherein the first phase change material penetrates deeper into the interior from the surface of the spent activated carbon than the second phase change material, so that the phase change material forms a multilayer structure. Claim 8 A method for manufacturing a heat storage insulation material using spent activated carbon, wherein, in claim 6, the coating step comprises: a first coating step of forming a first coating layer made of a hydrophilic polymer resin on the surface of the spent activated carbon; and a second coating step of forming a second coating layer made of a hydrophobic polymer resin on the surface of the first coating layer. Claim 9 A method for manufacturing a heat storage insulation material using spent activated carbon, characterized in that, in claim 8, the thickness of the second coating layer is thicker than the thickness of the first coating layer. Claim 10 A method for manufacturing a thermal insulation panel for construction, comprising: a step of manufacturing a thermal insulation material; and a step of mixing the manufactured thermal insulation material with an inorganic binder and forming it into a panel; wherein the step of manufacturing the thermal insulation material is performed according to the method of manufacturing a thermal insulation material of any one of claims 6 to 9, and the inorganic binder is composed of one or more of cement, gypsum, and clay.

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