CN111499322A - Phase-change gypsum board with temperature control performance and preparation method thereof - Google Patents
Phase-change gypsum board with temperature control performance and preparation method thereof Download PDFInfo
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- CN111499322A CN111499322A CN201910095123.0A CN201910095123A CN111499322A CN 111499322 A CN111499322 A CN 111499322A CN 201910095123 A CN201910095123 A CN 201910095123A CN 111499322 A CN111499322 A CN 111499322A
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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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- 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
- E04F13/072—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The application discloses a phase-change gypsum board with temperature control performance, wherein the phase-change microcapsule raw solution accounts for 20-80 parts by weight, the binder accounts for 0.5-2.5 parts by weight, the reinforcing agent accounts for 0.05-0.5 part by weight, the water reducing agent accounts for 0.05-1 part by weight, the surfactant accounts for 0.05-1 part by weight, the water accounts for 65-90 parts by weight, and the mask paper accounts for 2-10 parts by weight based on 100 parts by weight of plaster stone. The application also provides a preparation method of the gypsum board with the temperature control performance, which comprises the following steps: thoroughly mixing plaster of paris, a binder and a reinforcing agent to form a dry powder material; mixing a water reducing agent, a surfactant and water to form a wet material; fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry; and placing the slurry in the middle of the facing paper, and cutting and drying to form the phase-change gypsum board. The phase-change gypsum board with the temperature control performance prepared by the method has a small fluctuation range of the temperature along with time.
Description
Technical Field
The application relates to the field of building materials, in particular to a phase-change gypsum board with temperature control performance and a preparation method thereof.
Background
According to the survey of international energy agency, the primary energy consumption has increased 49% and the emission of CO2 has accounted for 43% in the last 20 years. In addition, 30% -40% of energy consumption is building energy consumption, the heat energy storage material is considered to be a mode capable of coordinating energy consumption and energy supply balance, the phase change energy storage material is applied to the building material, and the building energy consumption can be reduced by reasonable utilization, so that the phase change energy storage building material is a research hotspot. Patent CN201410176349.0 points out an energy-saving and heat-insulating method for buildings and a preparation scheme of a hollow building block, phase-change materials are directly mixed with gypsum, and the phase-change materials are easy to leak; CN200810156153.X and CN20110187490.7 are prepared by adsorbing and compounding phase change materials with graphite or other porous matrixes, preventing the phase change materials from leaking, and preparing phase change gypsum boards; CN201711053344.9, which describes a method for preparing a gypsum board of the phase-change heat storage composite material. However, none of the above patents mention the effect of the phase change material on the performance of the gypsum board and its energy storage effect.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
This application will have the phase transition microcapsule solution of energy storage effect directly to be applied to thistle board, reduction in production cost uses the admixture to improve the compatibility of phase transition microcapsule solution and gypsum, finally makes thistle board with the energy storage effect.
Specifically, the application provides a phase-change gypsum board with temperature control performance, wherein the phase-change microcapsule raw solution accounts for 20-80 parts by weight, the binder accounts for 0.5-2.5 parts by weight, the reinforcing agent accounts for 0.05-0.5 part by weight, the water reducing agent accounts for 0.05-1 part by weight, the surfactant accounts for 0.05-1 part by weight, the water accounts for 65-90 parts by weight, and the mask paper accounts for 2-10 parts by weight based on 100 parts by weight of plaster stone.
In the application, the phase-change gypsum board with the temperature control performance comprises 100 parts by weight of calcined gypsum, 20-80 parts by weight of phase-change microcapsule raw solution, 0.5-2.5 parts by weight of binder, 0.05-0.5 part by weight of reinforcing agent, 0.05-1 part by weight of water reducing agent, 0.05-1 part by weight of surfactant, 65-90 parts by weight of water and 2-10 parts by weight of mask paper.
In embodiments of the present application, the solid content of the phase change microcapsule raw solution may be 10% to 60%; the phase change microcapsule raw solution may include water, phase change microcapsules, an emulsifier, and a dispersant, wherein the phase change microcapsules include an inorganic wall material and a core material.
In the embodiment of the application, the enthalpy retention rate of the phase change microcapsule can be 60-99%, the enthalpy can be 50-200J/g, the average particle size can be 1-30 mu m, and the phase change temperature can be 15-30 ℃.
In embodiments of the present application, the inorganic wall material is silica.
In embodiments of the present application, the core material component may be any one or more of an alcohol compound, an organic acid compound, an ester compound, an alkane compound, such as paraffin, capric acid, caprylic acid, butyl stearate, polyethylene glycol, dodecanol, n-octane.
In embodiments herein, the emulsifier may be any one or more of triethylhexyl phosphoric acid, sodium lauryl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum, fatty acid polyglycol esters.
In embodiments herein, the dispersant may be any one or more of soap, gum arabic, sodium alkyl benzene sulfonate.
In embodiments of the present application, the binder may be any one or more of corn starch, modified corn starch, tapioca starch, pre-gelatinized starch.
In embodiments herein, the reinforcing agent may be any one or more of glass fibers, carbon fibers, wollastonite, gypsum whiskers.
In the embodiment of the present application, the water reducing agent may be any one or more of lignosulfonate water reducing agents, naphthalene water reducing agents, melamine water reducing agents, sulfamate water reducing agents, fatty acid water reducing agents, and polycarboxylate water reducing agents commercially available for gypsum boards.
In embodiments herein, the surfactant may be any one or more of sodium linear alkylbenzene sulfonate, sodium fatty alcohol-polyoxyethylene ether sulfate, and ammonium fatty alcohol-polyoxyethylene ether sulfate.
The application also provides a preparation method of the phase-change gypsum board, which comprises the following steps:
fully mixing dry substances such as gypsum, a binder, a reinforcing agent and the like to form a dry powder material;
mixing the phase-change microcapsule raw solution with water to uniformly distribute the phase-change material in the water to form a phase-change microcapsule solution;
mixing a water reducing agent, a surfactant and water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change gypsum board with the temperature control performance.
In the embodiment of the application, the phase-change microcapsule raw solution can be prepared by referring to Xiaomei, Yan Ziying, Hucelery, Jixiahui, research on the preparation and performance of SiO 2-coated paraffin phase-change microcapsules, a novel chemical material, 2016, volume 44, No. 2, pages 86-88.
In embodiments of the present application, the phase change microcapsule: the weight ratio of water can be 0.5-2: 1.
In embodiments herein, the water reducing agent: the weight ratio of water can be 1: 30-800, and the weight ratio of the surfactant: the weight ratio of the water can be 1: 30-800.
The phase change thistle board of this application can be used for room partition wall or furred ceiling.
The phase-change paper-surface gypsum board comprises a phase-change microcapsule raw solution, calcined gypsum, a surface protecting paper and an additive thereof; the phase-change microcapsule raw solution comprises water, phase-change microcapsules, a dispersing agent and an emulsifying agent, wherein the phase-change microcapsules comprise inorganic wall materials and core materials, the phase-change microcapsule solution can reduce the drying treatment process and reduce the material cost, and the problem of compatibility with the traditional building material is solved by adjusting the types and the proportion of additives. The phase change thistle board of this application preparation accords with all physical properties of thistle board product, and simultaneously in intensification process and cooling process, the phase change thistle board that has accuse warm ability that this application prepared can reach the target temperature sooner.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
FIG. 1 is a graph showing the location of perforations in the temperature profile of phase change gypsum boards having temperature control properties made in examples 1-3 of the present application and gypsum boards made in comparative examples 1-4.
FIG. 2 is a temperature rise profile for a phase change gypsum board having temperature control properties made in example 1 of the present application and a gypsum board made in comparative example 4.
FIG. 3 is a graph of the temperature reduction of a phase change gypsum board having temperature control properties made in example 1 of the present application and a gypsum board made in comparative example 4.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Examples
Example 1
According to the formula, the plaster of paris, the modified starch and the chopped glass fiber are fully mixed to form dry powder;
mixing the phase change microcapsule raw solution with 25 parts of water to uniformly distribute the phase change material in the water to form a phase change microcapsule solution;
mixing a naphthalene water reducer, sodium dodecyl sulfate and 55 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change gypsum board with the temperature control performance.
Example 2
According to the formula, the plaster of paris, the modified starch and the 10mm glass fiber are fully mixed to form dry powder;
mixing the phase change microcapsule raw solution with 30 parts of water to uniformly distribute the phase change material in the water to form a phase change microcapsule solution;
mixing a polycarboxylic acid water reducing agent, sodium dodecyl sulfate and 55 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change gypsum board with the temperature control performance.
Example 3
According to the formula, the plaster of paris, the pregelatinized starch, the modified starch and the carbon fiber are fully mixed to form dry powder;
mixing the phase change microcapsule raw solution with 30 parts of water to uniformly distribute the phase change material in the water to form a phase change microcapsule solution;
mixing a naphthalene water reducer, sodium dodecyl benzene sulfonate and 48 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change gypsum board with the temperature control performance.
Comparative example 1
According to the formula, the plaster of paris, the modified starch and the chopped glass fiber are fully mixed to form dry powder;
mixing the phase-change microcapsule raw solution with 32 parts of water to uniformly distribute the phase-change material in the water to form a phase-change microcapsule solution;
mixing sodium lauryl sulfate with 60 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change paper-surface gypsum board.
Comparative example 2
According to the formula, the plaster of paris and the modified corn starch are fully mixed to form dry powder;
mixing the phase change microcapsule raw solution with 30 parts of water to uniformly distribute the phase change material in the water to form a phase change microcapsule solution;
mixing a naphthalene water reducer, sodium dodecyl sulfate and 48 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change paper-surface gypsum board.
Comparative example 3
According to the formula, the plaster of paris, the pregelatinized starch, the modified starch and the carbon fiber are fully mixed to form dry powder;
mixing the phase change microcapsule raw solution with 30 parts of water to uniformly distribute the phase change material in the water to form a phase change microcapsule solution;
mixing a polycarboxylic acid water reducing agent with 43 parts of water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change paper-surface gypsum board.
Comparative example 4
According to the formula, the plaster of paris, the modified corn starch and the glass fiber are fully mixed to form dry powder;
mixing a polycarboxylic acid water reducing agent, sodium dodecyl sulfate and 78 parts of water to form a wet material;
fully mixing the dry powder and the wet powder to form slurry;
and placing the slurry in the middle of the facing paper, cutting and drying to form the phase-change paper-surface gypsum board.
Performance testing
The properties of the phase-change gypsum boards prepared in examples 1 to 3 and comparative examples 1 to 4 were tested according to the standard GB/T9775-.
TABLE 1 Properties of phase change gypsum boards with temperature control Properties prepared in examples 1-3 and gypsum boards prepared in comparative examples 1-4
| Transverse rupture load/N | Longitudinal breaking load/N | |
| Example 1 | 545 | 276 |
| Example 2 | 551 | 282 |
| Example 3 | 560 | 283 |
| Comparative example 1 Water reducing agent free | 503 | 188 |
| Comparative example 2 No reinforcing agent | 512 | 192 |
| Comparative example 3 surfactant free | 516 | 217 |
| Comparative example 4 no phase change material | 534 | 228 |
| GB/T9775-2008 & lt & ltpaper plasterboard & gt & lt & gt | 520 | 200 |
As can be seen from Table 1, the transverse breaking load strength and the longitudinal breaking load strength of the phase-change gypsum boards with temperature control performance prepared in examples 1-3 of the present application are both greater than those of the gypsum boards prepared in comparative examples 1-4, and are higher than the standards in GB/T9775-.
The phase change gypsum boards with temperature control properties prepared in example 1 of the present application and the gypsum boards prepared in comparative example 4 were tested for temperature change over time using a comparative method, and the results are shown in FIGS. 2-3.
The test method comprises the following steps: punching a hole in the center of the gypsum board prepared in examples 1 to 3 and comparative examples 1 to 4 of the present application (fig. 1), inserting a temperature sensor into the punched hole, and recording the temperature of the board core at all times; and (3) placing the sample inserted with the temperature sensor in a low-temperature environment, keeping the temperature of the plate core constant for 24 hours at 16 ℃, then placing the sample in a 40 ℃ environment, recording the temperature rise curve of the sample plate core, after the temperature is stable, placing the sample in a 16 ℃ environment, and recording the temperature drop curve of the sample plate core, wherein the result is shown in fig. 2-3.
As can be seen from fig. 2 to 3, in the temperature rising process and the temperature lowering process, the gypsum board prepared in comparative example 4 has larger fluctuation due to the influence of the environmental temperature than the phase-change gypsum board with the temperature control performance prepared in example 1 of the present application, and therefore, the phase-change gypsum board prepared in the present application has better temperature control performance.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (11)
1. A phase-change gypsum board with temperature control performance comprises, by weight, 100 parts of plaster of paris, 20-80 parts of phase-change microcapsule raw solution, 0.5-2.5 parts of binder, 0.05-0.5 part of reinforcing agent, 0.05-1 part of water reducing agent, 0.05-1 part of surfactant, 65-90 parts of water and 2-10 parts of mask paper.
2. The phase-change gypsum board with temperature control properties of claim 1, wherein the solid content of the phase-change microcapsule raw solution is 10-60%; the phase change microcapsule raw solution comprises water, phase change microcapsules, an emulsifier and a dispersing agent, wherein the phase change microcapsules comprise inorganic wall materials and core materials.
3. The phase-change gypsum board with temperature control performance according to claim 2, wherein the phase-change microcapsules have an enthalpy retention rate of 60-99%, an enthalpy value of 50-200J/g, an average particle size of 1-30 μm, and a phase-change temperature of 15-30 ℃.
4. The phase change gypsum board having temperature control properties of claim 1, wherein the binder is any one or more of corn starch, modified corn starch, tapioca starch, pre-gelatinized starch.
5. The phase change gypsum board having temperature control properties of claim 1, wherein the reinforcing agent is any one or more of glass fibers, carbon fibers, wollastonite, gypsum whiskers.
6. The phase change gypsum board having temperature control performance according to claim 1, wherein the water reducing agent is one or more of lignosulfonate water reducing agents, naphthalene based high-efficiency water reducing agents, melamine based high-efficiency water reducing agents, sulfamate based high-efficiency water reducing agents, fatty acid based high-efficiency water reducing agents, and polycarboxylate based high-efficiency water reducing agents.
7. The phase change gypsum board with temperature control properties of claim 1, wherein the surfactant is any one or more of sodium linear alkyl benzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, ammonium fatty alcohol polyoxyethylene ether sulfate.
8. The method of making a phase change gypsum board having temperature control properties according to any one of claims 1 to 7, comprising:
thoroughly mixing plaster of paris, a binder and a reinforcing agent to form a dry powder material;
mixing the phase-change microcapsule raw solution with water to uniformly distribute the phase-change material in the water to form a phase-change microcapsule solution;
mixing a water reducing agent, a surfactant and water to form a wet material;
fully mixing the dry powder, the phase-change microcapsule solution and the wet material to form slurry;
and placing the slurry in the middle of the facing paper, and cutting and drying to form the phase-change gypsum board.
9. The preparation method of claim 8, wherein the weight ratio of the phase-change microcapsule to the water is 0.5-2: 1.
10. The preparation method of claim 8, wherein the weight ratio of the water reducing agent to the water is 1: 30-800, and the weight ratio of the surfactant to the water is 1: 30-800.
11. Use of the temperature control phase change gypsum board of any one of claims 1 to 7 in a room divider or ceiling.
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| CN114426427A (en) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | Phase-change temperature-regulating gypsum board and preparation method thereof |
| CN116065425A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Phase-change temperature-control facing paper for paper-faced gypsum board and preparation method thereof |
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| CN113414869A (en) * | 2021-06-07 | 2021-09-21 | 中建材创新科技研究院有限公司 | Phase-change building material product with temperature control performance and preparation method thereof |
| WO2022257340A1 (en) * | 2021-06-07 | 2022-12-15 | 中建材创新科技研究院有限公司 | Phase change building material product with temperature control performance and preparation method therefor |
| CN116065425A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Phase-change temperature-control facing paper for paper-faced gypsum board and preparation method thereof |
| CN116065425B (en) * | 2021-10-29 | 2024-05-07 | 中国石油化工股份有限公司 | Phase-change temperature-control facing paper for paper-faced gypsum board and preparation method thereof |
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