CN111718170A - Manufacturing method of phase-change energy-storage wall surface decorative plate material - Google Patents
Manufacturing method of phase-change energy-storage wall surface decorative plate material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0259—Hardening promoted by a rise in pressure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0263—Hardening promoted by a rise in temperature
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2084—Thermal shock resistance
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
- E04F2290/023—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets for heating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
Abstract
The invention discloses a method for manufacturing a phase-change energy-storage wall surface decorative board material, which is characterized by comprising the following steps of: 1) pyrolyzing rice hulls; 2) performing alkali washing and acid washing on the rice husk carbon for deashing; 3) co-activating the deliming carbonized material and the wood powder; 4) preparing a phase change energy storage material; 5) coating the phase change energy storage material; 6) preparing a mixed base material; 7) and (4) forming and post-processing the phase change energy storage wall surface decorative plate material. The invention has the advantages of high strength, good water resistance and low cost; the invention has the function of energy storage, can well play a role of indoor temperature regulation, and has the advantage of energy conservation.
Description
Technical Field
The invention belongs to the technical field of production of wall decoration materials, and particularly relates to a manufacturing method of a phase-change energy-storage wall decoration plate material.
Background
With the development policies of building energy conservation and environmental protection, the development of the building industry and the innovation of wall materials, the application of the building gypsum as a non-bearing wall material is more and more extensive. The gypsum raw material has the advantages of wide source, simple and convenient preparation, low energy consumption and the like compared with the traditional building material, and is a well-known energy-saving and emission-reducing building material. The gypsum board is taken as a wall material by the characteristics of environmental protection, humidity adjustment, heat preservation, fire prevention, comfort, convenient construction and the like, and is gradually favored by people. The existing gypsum board material mainly has the problems of low strength, easy damage, weak moisture resistance and obviously reduced mechanical strength after being wetted.
Phase Change Materials (PCM), also called latent heat storage materials, complete energy exchange with the surrounding environment through Phase transformation of the material itself, so as to achieve the effect of regulating the temperature of the surrounding environment, and are a research hotspot in the field of latent heat storage materials.
Phase change energy storage materials are compounded in a gypsum board in the prior art, however, most of the existing phase change materials adopt ceramic made of inorganic porous materials as adsorbing materials, the porosity of the ceramic is limited, the adsorbing capacity is weak, and liquid phase change materials are prone to leakage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for manufacturing a phase change energy storage wall surface decorative plate material.
The invention is realized by the following technical scheme:
the manufacturing method of the phase-change energy-storage wall surface decorative plate material is characterized by comprising the following steps:
1) crushing the rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 600-650 ℃, and the pyrolysis time for 30-60min, discharging rice hull carbon after pyrolysis is finished, and cooling the rice hull carbon to room temperature under an anaerobic condition;
2) putting the rice hull carbon in an alkali solution, dissolving SiO2 in the rice hull carbon in the alkali solution, washing the rice hull carbon with distilled water for 3-4 times after the alkali washing, putting the rice hull carbon in an acid solution, dissolving other alkali metals in the rice hull carbon in the acid solution, washing the rice hull carbon with distilled water for 3-4 times after the acid washing, and drying the rice hull carbon until the water content is below 10% to form a deashing carbonized material;
3) mixing the deashing carbonized material and the wood powder, placing the mixture in an activation furnace for activation, wherein the ratio of the deashing carbonized material to the wood powder is 1:0.03-0.1, the activation temperature is 900-;
4) mixing and stirring the mixed fatty acid and the adsorbent at the temperature of 70-80 ℃, performing vacuum adsorption for 30-60min, and filtering redundant mixed fatty acid by using gauze after adsorption is completed to obtain a phase change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.1-0.25:0.2-0.3 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 10-20 ℃, filtering redundant mixed solution after mixing and stirring, naturally air-drying and curing, and then ball-milling by a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring the building gypsum powder, the metakaolin, the steel slag and the wood fiber according to the mass ratio of 1:0.1-0.15:0.16-0.21:0.15-0.25, placing the mixture into a calcining furnace, carrying out anaerobic calcination for 1-2h at the temperature of 250-310 ℃, and cooling to room temperature after calcination to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to the weight ratio of 1: 0.15-0.25: 0.4-0.6:0.02-0.06: preparing materials according to the proportion of 0.01-0.03, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 3-8min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 8-10min, adding mixed slurry into a mold, maintaining the pressure for 12-16h under the pressure of 0.6-0.8MPa, demolding, drying in a drying oven at the drying temperature of 35-45 ℃ for 30-35h, then maintaining for 7-10 days, and after the maintenance is finished, edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material.
Preferably, in the step 1), the content of volatile components in the rice husk charcoal is less than 3%.
Preferably, in the step 2), the alkali solution is Na2HO or K2OH, and the acid solution is H2SO4 or HCl.
Preferably, in the step 3), the activation time is 10-25 min.
Preferably, the mixed fatty acid in the step 4) is a mixture of capric acid, stearic acid and paraffin wax, and the ratio of capric acid, stearic acid and paraffin wax is 0.2-0.3:0.4-0.6: 1.
The working principle of the invention is as follows:
1) the method comprises the steps of removing the volatile matters and ash content in the rice hulls by adopting pyrolysis, alkali washing and acid washing to form deashing carbonized materials with high carbon content and high porosity, further activating the deashing carbonized materials, further improving the porosity of the deashing carbonized materials, and forming high-porosity adsorption materials, wherein the fixed carbon content of the rice hulls is about 15%, the volatile matter content of the rice hulls is about 60%, the ash content of the rice hulls is 14-18%, the SiO2 content of the ash is more than 90%, and the rest alkali metals such as NaO, K2O, MgO, CaO and the like in the ash are about 10%.
2) The invention takes capric acid, stearic acid and paraffin as phase-change materials, the phase-change temperature is 22-26 ℃, when in use, the phase-change materials are solidified and release heat when the indoor temperature is lower than 22 ℃, and when the temperature is higher than 26 ℃, the phase-change materials are melted and absorbed, and the indoor temperature can be always maintained in a more comfortable range of human body.
3) Metakaolin, steel slag and wood fiber can effectively improve the strength and the water resistance of a finished product.
4) Epoxy resin, acetone and ethylenediamine are used as coating materials, so that the phase change energy storage material can be encapsulated, and leakage during liquid phase precipitation is avoided.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention has the advantages of high strength and good water resistance, can be widely applied to the field of indoor decoration, and can adapt to high-humidity environment.
2) The invention has the function of energy storage, can well play a role of indoor temperature regulation, and has the advantage of energy conservation.
3) The rice husk is used as the raw material of the adsorbing material used in the invention, so that the cost is low and the adsorbing performance is good.
Detailed Description
The manufacturing method of the phase-change energy-storage wall surface decorative plate material is characterized by comprising the following steps:
1) crushing the rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 600-650 ℃, and the pyrolysis time for 30-60min, discharging rice hull carbon after pyrolysis is finished, and cooling the rice hull carbon to room temperature under an anaerobic condition;
2) putting the rice hull carbon in an alkali solution, dissolving SiO2 in the rice hull carbon in the alkali solution, washing the rice hull carbon with distilled water for 3-4 times after the alkali washing, putting the rice hull carbon in an acid solution, dissolving other alkali metals in the rice hull carbon in the acid solution, washing the rice hull carbon with distilled water for 3-4 times after the acid washing, and drying the rice hull carbon until the water content is below 10% to form a deashing carbonized material;
3) mixing the deashing carbonized material and the wood powder, placing the mixture in an activation furnace for activation, wherein the ratio of the deashing carbonized material to the wood powder is 1:0.03-0.1, the activation temperature is 900-;
4) mixing and stirring the mixed fatty acid and the adsorbent at the temperature of 70-80 ℃, performing vacuum adsorption for 30-60min, and filtering redundant mixed fatty acid by using gauze after adsorption is completed to obtain a phase change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.1-0.25:0.2-0.3 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 10-20 ℃, filtering redundant mixed solution after mixing and stirring, naturally air-drying and curing, and then ball-milling by a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring the building gypsum powder, the metakaolin, the steel slag and the wood fiber according to the mass ratio of 1:0.1-0.15:0.16-0.21:0.15-0.25, placing the mixture into a calcining furnace, carrying out anaerobic calcination for 1-2h at the temperature of 250-310 ℃, and cooling to room temperature after calcination to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to the weight ratio of 1: 0.15-0.25: 0.4-0.6:0.02-0.06: preparing materials according to the proportion of 0.01-0.03, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 3-8min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 8-10min, adding mixed slurry into a mold, maintaining the pressure for 12-16h under the pressure of 0.6-0.8MPa, demolding, drying in a drying oven at the drying temperature of 35-45 ℃ for 30-35h, then maintaining for 7-10 days, and after the maintenance is finished, edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material.
In the step 1), the content of volatile components in the rice husk carbon is less than 3%.
In the step 2), the alkali liquor is Na2HO or K2OH, and the acid liquor is H2SO4 or HCl.
In the step 3), the activation time is 10-25 min.
The mixed fatty acid in the step 4) is a mixture of capric acid, stearic acid and paraffin wax, and the ratio of capric acid, stearic acid and paraffin wax is 0.2-0.3:0.4-0.6: 1.
Example 1
1) Crushing rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 600 ℃, and the pyrolysis time for 60min, discharging rice hull carbon after the pyrolysis is finished, cooling the rice hull carbon to the room temperature under the anaerobic condition, wherein the volatile content in the rice hull carbon is 2.5%;
2) putting the rice hull carbon in a Na2HO solution, dissolving SiO2 in the rice hull carbon in an alkali solution, washing the rice hull carbon with distilled water for 3 times after alkali washing, putting the rice hull carbon in an H2SO4 solution, dissolving other alkali metals in the rice hull carbon in an acid solution, washing the rice hull carbon with distilled water for 3 times after acid washing, and drying the rice hull carbon until the water content is 7% to form a deashing carbonized material;
3) mixing the deliming carbonized material and the wood powder, placing the mixture in an activation furnace for activation for 10min, wherein the ratio of the deliming carbonized material to the wood powder is 1:0.03, the activation temperature is 1000 ℃, discharging the mixture after the activation is finished, and carrying out anaerobic cooling to form a high-porosity adsorption material;
4) mixing and stirring mixed fatty acid and an adsorption material at the temperature of 70 ℃, wherein the mixed fatty acid is capric acid, stearic acid and paraffin, the ratio of the capric acid to the stearic acid to the paraffin is 0.2:0.4:1, carrying out vacuum adsorption for 60min, and filtering redundant mixed fatty acid by using gauze after adsorption is finished to obtain a phase-change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.1:0.2 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 10 ℃, filtering redundant mixed solution after mixing and stirring, naturally drying and curing the mixed solution, and then performing ball milling by using a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring building gypsum powder, metakaolin, steel slag and wood fiber according to the mass ratio of 1:0.1:0.16:0.15, placing the mixture into a calcining furnace, carrying out anaerobic calcining for 1h at the temperature of 310 ℃, and cooling to room temperature after the calcining is finished to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to a ratio of 1:0.15: 0.4:0.02: preparing materials according to the proportion of 0.01, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 8min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 10min, adding mixed slurry into a mold, maintaining the pressure for 16h under the pressure of 0.8MPa, demolding, drying in a drying oven at the drying temperature of 45 ℃ for 30h, then maintaining for 7 days, and edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material after maintaining.
Through detection, the temperature of the phase change point of the phase change energy storage wall surface decorative plate material is 25.8 ℃. After 600 times of thermal cycle phase change, the phase change energy storage performance of the material is obviously attenuated, and no liquid phase is leaked. The mechanical strength of the gypsum board is 2-3 times that of the common gypsum board. The mechanical strength of the material is not obviously reduced after being placed in an environment with the relative humidity of 90 percent for 30 days.
Example 2
1) Crushing rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 650 ℃, and the pyrolysis time at 60min, discharging rice hull carbon after pyrolysis is finished, cooling the rice hull carbon to room temperature under an anaerobic condition, wherein the volatile content in the rice hull carbon is 1.8%;
2) putting the rice hull carbon in a K2HO solution, dissolving SiO2 in the rice hull carbon in an alkali solution, washing the rice hull carbon with distilled water for 4 times after alkali washing, putting the rice hull carbon in an H2SO4 solution, dissolving other alkali metals in the rice hull carbon in an acid solution, washing the rice hull carbon with distilled water for 4 times after acid washing, and drying the rice hull carbon until the water content is 8.3% to form a deashed carbonized material;
3) mixing the deliming carbonized material and the wood powder, placing the mixture in an activation furnace for activation for 25min, wherein the ratio of the deliming carbonized material to the wood powder is 1:0.1, the activation temperature is 950 ℃, discharging the mixture after the activation is finished, and cooling the mixture in an anaerobic way to form the high-porosity adsorbent;
4) mixing and stirring mixed fatty acid and an adsorption material at the temperature of 70 ℃, wherein the mixed fatty acid is capric acid, stearic acid and paraffin, the ratio of the capric acid to the stearic acid to the paraffin is 0.3:0.4:1, carrying out vacuum adsorption for 30min, and filtering redundant mixed fatty acid by using gauze after adsorption is completed to obtain a phase-change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.25:0.3 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 20 ℃, filtering redundant mixed solution after mixing and stirring, naturally drying and curing the mixed solution, and then performing ball milling by using a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring building gypsum powder, metakaolin, steel slag and wood fiber according to the mass ratio of 1:0.15:0.21:0.2, placing the mixture into a calcining furnace, carrying out anaerobic calcining for 2 hours at the temperature of 310 ℃, and cooling to room temperature after calcining is finished to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to a ratio of 1:0.25: 0.6:0.06: preparing materials according to the proportion of 0.03, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 3min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 8min, adding mixed slurry into a mold, maintaining the pressure for 12h under the pressure of 0.6MPa, demolding, drying in a drying oven at the drying temperature of 35 ℃ for 35h, then maintaining for 10 days, and edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material after maintaining.
Through detection, the temperature of the phase change point of the phase change energy storage wall surface decorative plate material is 24.9 ℃. After 600 times of thermal cycle phase change, the phase change energy storage performance of the material is obviously attenuated, and no liquid phase is leaked. The mechanical strength of the gypsum board is 2-3 times that of the common gypsum board. The mechanical strength of the material is not obviously reduced after being placed in an environment with the relative humidity of 90 percent for 30 days.
Example 3
1) Crushing rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 630 ℃ and the pyrolysis time at 60min, discharging rice hull carbon after pyrolysis is finished, cooling the rice hull carbon to room temperature under an anaerobic condition, wherein the volatile content in the rice hull carbon is 2.4%;
2) putting the rice hull carbon in a K2HO solution, dissolving SiO2 in the rice hull carbon in an alkali liquor, washing the rice hull carbon with distilled water for 3 times after completing alkali washing, then putting the rice hull carbon in an HCl solution, dissolving other alkali metals in the rice hull carbon in an acid liquor, washing the rice hull carbon with distilled water for 4 times after completing acid washing, and drying the rice hull carbon until the water content is 9.5% to form a deashing carbonized material;
3) mixing the deashing carbonized material and the wood powder, placing the mixture in an activation furnace for activation for 15min, wherein the ratio of the deashing carbonized material to the wood powder is 1:0.3, the activation temperature is 990 ℃, discharging the mixture after the activation is finished, and cooling the mixture in an anaerobic environment to form the high-porosity adsorbent;
4) mixing and stirring mixed fatty acid and an adsorption material at the temperature of 75 ℃, wherein the mixed fatty acid is capric acid, stearic acid and paraffin, the ratio of the capric acid to the stearic acid to the paraffin is 0.25:0.33:1, performing vacuum adsorption for 45min, and filtering redundant mixed fatty acid by using gauze after adsorption is completed to obtain a phase-change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.23:0.26 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 18 ℃, filtering redundant mixed solution after mixing and stirring, naturally drying and curing the mixed solution, and then performing ball milling by using a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring building gypsum powder, metakaolin, steel slag and wood fiber according to the mass ratio of 1:0.14:0.19:0.18, placing the mixture into a calcining furnace, carrying out anaerobic calcining for 1.5h at 290 ℃, and cooling to room temperature after the calcining is finished to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to a ratio of 1: 0.22: 0.45:0.05: preparing materials according to the proportion of 0.02, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 6min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 9min, adding mixed slurry into a mold, maintaining the pressure for 15h under the pressure of 0.7MPa, demolding, drying in a drying oven at the drying temperature of 41 ℃ for 33h, then maintaining for 9 days, and edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material after maintaining.
Through detection, the temperature of the phase change point of the phase change energy storage wall surface decorative plate material is 23.8 ℃. After 600 times of thermal cycle phase change, the phase change energy storage performance of the material is obviously attenuated, and no liquid phase is leaked. The mechanical strength of the gypsum board is 2-3 times that of the common gypsum board. The mechanical strength of the material is not obviously reduced after being placed in an environment with the relative humidity of 90 percent for 30 days.
The technical solution of the present invention is only exemplary described, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various insubstantial modifications are made by using the method concept and technical solution of the present invention, or the inventive concept and technical solution are directly applied to other occasions without modifications.
Claims (5)
1. The manufacturing method of the phase-change energy-storage wall surface decorative plate material is characterized by comprising the following steps:
1) crushing the rice hulls, putting the crushed rice hulls into a pyrolysis furnace for pyrolysis, controlling the pyrolysis temperature at 600-650 ℃, and the pyrolysis time for 30-60min, discharging rice hull carbon after pyrolysis is finished, and cooling the rice hull carbon to room temperature under an anaerobic condition;
2) putting the rice hull carbon in an alkali solution, dissolving SiO2 in the rice hull carbon in the alkali solution, washing the rice hull carbon with distilled water for 3-4 times after the alkali washing, putting the rice hull carbon in an acid solution, dissolving other alkali metals in the rice hull carbon in the acid solution, washing the rice hull carbon with distilled water for 3-4 times after the acid washing, and drying the rice hull carbon until the water content is below 10% to form a deashing carbonized material;
3) mixing the deashing carbonized material and the wood powder, placing the mixture in an activation furnace for activation, wherein the ratio of the deashing carbonized material to the wood powder is 1:0.03-0.1, the activation temperature is 900-;
4) mixing and stirring the mixed fatty acid and the adsorbent at the temperature of 70-80 ℃, performing vacuum adsorption for 30-60min, and filtering redundant mixed fatty acid by using gauze after adsorption is completed to obtain a phase change energy storage material;
5) mixing and stirring epoxy resin, acetone and ethylenediamine according to the proportion of 1:0.1-0.25:0.2-0.3 to prepare a mixed solution, mixing and stirring the mixed solution and the phase change energy storage material at the temperature of 10-20 ℃, filtering redundant mixed solution after mixing and stirring, naturally air-drying and curing, and then ball-milling by a ball mill to obtain a coated phase change energy storage material;
6) mixing and stirring the building gypsum powder, the metakaolin, the steel slag and the wood fiber according to the mass ratio of 1:0.1-0.15:0.16-0.21:0.15-0.25, placing the mixture into a calcining furnace, carrying out anaerobic calcination for 1-2h at the temperature of 250-310 ℃, and cooling to room temperature after calcination to obtain a mixed base material;
7) mixing a base material, a coating phase change energy storage material, water, a retarder and a foaming agent according to the weight ratio of 1: 0.15-0.25: 0.4-0.6:0.02-0.06: preparing materials according to the proportion of 0.01-0.03, adding a retarder and a foaming agent into water, stirring, mixing and stirring for 3-8min, adding a mixed base material and a coated phase-change energy storage material, continuously stirring for 8-10min, adding mixed slurry into a mold, maintaining the pressure for 12-16h under the pressure of 0.6-0.8MPa, demolding, drying in a drying oven at the drying temperature of 35-45 ℃ for 30-35h, then maintaining for 7-10 days, and after the maintenance is finished, edging and polishing the surface to form the phase-change energy storage wall surface decorative plate material.
2. The method for manufacturing the phase-change energy-storage wall surface decorative plate material as claimed in claim 1, wherein: in the step 1), the content of volatile components in the rice husk carbon is less than 3%.
3. The method for manufacturing the phase-change energy-storage wall surface decorative plate material as claimed in claim 1, wherein: in the step 2), the alkali liquor is Na2HO or K2OH, and the acid liquor is H2SO4 or HCl.
4. The method for manufacturing the phase-change energy-storage wall surface decorative plate material as claimed in claim 1, wherein: in the step 3), the activation time is 10-25 min.
5. The method for manufacturing the phase-change energy-storage wall surface decorative plate material as claimed in claim 1, wherein: the mixed fatty acid in the step 4) is a mixture of capric acid, stearic acid and paraffin wax, and the ratio of capric acid, stearic acid and paraffin wax is 0.2-0.3:0.4-0.6: 1.
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