CN102535735B - Preparation method of phase-change energy-storage gypsum wallboard - Google Patents
Preparation method of phase-change energy-storage gypsum wallboard Download PDFInfo
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- CN102535735B CN102535735B CN201110187489.4A CN201110187489A CN102535735B CN 102535735 B CN102535735 B CN 102535735B CN 201110187489 A CN201110187489 A CN 201110187489A CN 102535735 B CN102535735 B CN 102535735B
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- phase change
- gypsum
- plastic bag
- change material
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 70
- 239000010440 gypsum Substances 0.000 title claims abstract description 70
- 238000004146 energy storage Methods 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000012782 phase change material Substances 0.000 claims abstract description 52
- 229920003023 plastic Polymers 0.000 claims abstract description 34
- 239000004033 plastic Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 25
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- -1 polypropylene Polymers 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012188 paraffin wax Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 239000011507 gypsum plaster Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 208000034189 Sclerosis Diseases 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000003837 high-temperature calcination Methods 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 14
- 239000011232 storage material Substances 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010942 self-nucleation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Building Environments (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention discloses a preparation method of a phase change energy storage gypsum wallboard, which adopts gypsum powder as a main raw material, melts a phase change material, pours the phase change material into a rectangular plastic bag, seals the rectangular plastic bag, horizontally places the rectangular plastic bag, cools and fixes the rectangular plastic bag into a phase change material board, then places the phase change material board sealed by the plastic bag into a mold filled with part of gypsum slurry, and removes the mold after a sample is hardened after 2 to 3 hours to obtain the phase change energy storage gypsum wallboard with two side structures of gypsum boards and a middle interlayer structure of the phase change material board sealed by the plastic bag. Compared with the prior art, the preparation method of the phase change energy storage gypsum wallboard has the advantages of simple production process and high production efficiency, and the prepared phase change energy storage gypsum wallboard has the advantages of low cost, capability of effectively controlling the indoor temperature fluctuation of a building, reduction of building energy consumption and the like.
Description
Technical field
The present invention relates to energy-storage composite material field, particularly relate to a kind of preparation method of phase change energy-storage gypsum wallboard.
Background technology
Improving energy use efficiency is the important problem of in modern society's sustainable development one.Use in total amount at modern society's energy, energy for building occupies very large proportion, almost consumes 1/3rd of social total energy at the building field of some countries.Therefore, raising building efficiency is very valuable for the energy use efficiency of raising entire society.The approach improving building efficiency can be divided into passive method and active method.Passive method is that the material utilizing thermal conductivity coefficient low improves building heat preserving heat-insulating capability, thus improves its energy use efficiency.And active method is the efficiency of energy utilization by utilizing the material with energy-storage function to improve building.Energy storage material can be divided into two classes: sensible heat energy storage material and latent heat storage material.Waterwall and Trombe wall is had at the example of the sensible heat energy storage of architectural material.The heat energy that the heat energy that material sensible heat stores stores much smaller than latent heat.Such as specific heat of water belongs to higher in various material, is 4.2J/g DEG C.And the enthalpy of phase change of general phase-changing energy storage material J/g between tens to hundreds of.Therefore, reach the level close with hidden heat energy storage, the temperature of sensible heat energy storage material will have the change of ten degree to 100 degree, is almost impossible.Excessive variations in temperature is unfavorable for the use of energy.And latent heat of phase change energy storage is except energy storage density is large, it is highly stable that another advantage is exactly energy storage temperature, and excursion is little, is convenient to the use of energy.
Utilize material energy-absorbing and the feature releasing energy in phase transition process, in recent years in one of direction that the various fields such as the energy, material, Aero-Space, weaving, electric power, medical instrument, building are enlivened when realizing the storage of energy and utilize.Phase-change accumulation energy has that energy storage density is high, energy storage easy control of temperature and the advantage such as range of choice is wide, has entered practical and commercialization stage at present in some fields.
Material for phase-change accumulation energy becomes phase-change material, and research is at present many is solid-liquid phase change material with more feasible phase-change material, namely utilizes the material of solid-liquid phase change process heat energy storage.Gu the volumetric change that-gas or liquid-gas phase become is too large, and does not possess practical value.But also there is the problem of encapsulation in actual use in solid-liquid phase change material.Research in early days and on probation in, people have selected some inorganic hydrated salts as phase-change material and the canister packaging container as phase-change material.Find to there is serious etching problem very soon, add the cold problem of the mistake of inorganic water and salt, cause the non-constant of durability.In recent years, organic phase-change material especially paraffin class phase-change material then because of its congruent melting, self-nucleation, enjoy favor without crossing the characteristics such as cold phase-splitting, corrosion-free, chemical and Heat stability is good, price are low in thermal storage and energy accumulation research field.But owing to there is the shortcoming of liquid state phase change material seepage in solid-liquid phase change process, so must consider that in practicality it encapsulates.Use some method for packing in prior art, as methods such as the encapsulation of macroscopical container, microscopic capsules encapsulation, the crosslinked encapsulation of microcosmic, but all to there is technique more complicated for these methods, the shortcomings such as material cost costliness.
Summary of the invention
The object of the present invention is to provide the preparation method of the phase change energy-storage gypsum wallboard that a kind of production technology is simple, heat insulating effect is obvious, with low cost.
Technical scheme of the present invention is: a kind of preparation method of phase change energy-storage gypsum wallboard, adopt land plaster as primary raw material, to pour in rectangular polybag after phase-change material is melted and seal, keep flat, cooling is fixed into phase-change material plate, then the phase-change material plate after plastic bag sealing is inserted the mould inside of filling part gypsum slurry, after treating sample sclerosis after 2-3 hour, namely form removal obtains both sides structure is gypsum plank, and intermediate course structure is the phase change energy-storage gypsum wallboard of plastic bag sealing phase-change material plate.
In a preferred embodiment of the present invention, the thickness of described plastic bag sealing phase-change material plate is 1-2cm.
In a preferred embodiment of the present invention, described phase-change material adopts paraffin.
In a preferred embodiment of the present invention, the one in described plastic bag sealing phase-change material plate in the material be made from polypropylene of polybag, polyethylene, polyvinyl chloride, polystyrene, polyamide or thermoplastic polyester.
In a preferred embodiment of the present invention, the thickness of described polybag is 10-50 μm.
In a preferred embodiment of the present invention, described land plaster comprises high strength gypsum powder, building gypsum plaster or high-temperature calcination gypsum.
In a preferred embodiment of the present invention, in described gypsum slurry, the ratio of land plaster and water is 1: 0.5-1: 0.7.
In a preferred embodiment of the present invention, in described phase change energy-storage gypsum wallboard, the volume content of plastic bag sealing phase-change material plate is 10%-30%.
Compared with prior art, preparation method's production technology of phase change energy-storage gypsum wallboard of the present invention is simple, and production efficiency is high, and the product phase change energy-storage gypsum wallboard of system has with low cost, can effectively control Indoor environment temperature fluctuation, reduces the advantages such as building energy consumption.
Detailed description of the invention
Embodiment 1
Phase change energy-storage gypsum wallboard prepared by employing land plaster, phase-change material, phase-change material adopts paraffin, to pour into after melted paraffin wax in rectangular polybag and seal, keep flat, cooling is fixed into the mould inside that then the phase-change material plate after plastic bag sealing is inserted filling part gypsum slurry by phase-change material plate, after treating sample sclerosis after 2-3 hour, namely form removal obtains both sides structure is gypsum plank, and intermediate course structure is the phase change energy-storage gypsum wallboard of plastic bag sealing phase-change material plate.Wherein, the thickness of plastic bag sealing phase-change material plate is 1-2cm, one in the material be made from polypropylene of polybag, polyethylene, polyvinyl chloride, polystyrene, polyamide or thermoplastic polyester, the thickness of polybag is 10-50 μm, land plaster is a kind of in high strength gypsum powder, building gypsum plaster or high-temperature calcination gypsum, and in gypsum slurry, the ratio of land plaster and water is 1: 0.5-1: 0.7.In the present embodiment, the thickness of plastic bag sealing phase-change material plate is 1cm, plastic bag material adopts polypropylene, thickness is 20 μm, land plaster is building gypsum plaster, in gypsum slurry, the ratio of land plaster and water is 1: 0.6, in phase change energy-storage gypsum wallboard, and the volume content of plastic bag sealing phase-change material plate is 10%.The heat insulation contrast experiment of heat preservation of board under the phase change energy-storage gypsum wallboard prepare embodiment 1 and gypsum plank carry out imposing a condition, impose a condition for: room temperature is 12 DEG C, base surface 45 DEG C heating, remove base surface after constant Deng top board surface temperature to be heated, top board surface temperature situation of change in this process, experimental result refers to shown in table 1.
Table 1
Embodiment 2
Phase change energy-storage gypsum wallboard prepared by employing land plaster, phase-change material, phase-change material adopts paraffin, to pour into after melted paraffin wax in rectangular polybag and seal, keep flat, cooling is fixed into the mould inside that then the phase-change material plate after plastic bag sealing is inserted filling part gypsum slurry by phase-change material plate, after treating sample sclerosis after 2-3 hour, namely form removal obtains both sides structure is gypsum plank, and intermediate course structure is the phase change energy-storage gypsum wallboard of plastic bag sealing phase-change material plate.Wherein, the thickness of plastic bag sealing phase-change material plate is 1-2cm, and the one in the material be made from polypropylene of polybag, polyethylene, polyvinyl chloride, polystyrene, polyamide or thermoplastic polyester, the thickness of polybag is 10-50 μm.Land plaster is a kind of in high strength gypsum powder, building gypsum plaster or high-temperature calcination gypsum, in gypsum slurry, the ratio of land plaster and water is 1: 0.5-1: 0.7, in the present embodiment, the thickness of plastic bag sealing phase-change material plate is 1cm, and plastic bag material adopts polypropylene, and thickness is 20 μm, land plaster is building gypsum plaster, in gypsum slurry, the ratio of land plaster and water is 1: 0.6, in phase change energy-storage gypsum wallboard, and the volume content of plastic bag sealing phase-change material plate is 20%.The heat insulation contrast experiment of heat preservation of board under the phase change energy-storage gypsum wallboard prepare embodiment 2 and gypsum plank carry out imposing a condition, impose a condition for: room temperature is 12 DEG C, base surface 45 DEG C heating, remove base surface after constant Deng top board surface temperature to be heated, top board surface temperature situation of change in this process, experimental result refers to shown in table 2.
Table 2
Embodiment 3
Phase change energy-storage gypsum wallboard prepared by employing land plaster, phase-change material, phase-change material adopts paraffin, to pour into after melted paraffin wax in rectangular polybag and seal, keep flat, cooling is fixed into the mould inside that then the phase-change material plate after plastic bag sealing is inserted filling part gypsum slurry by phase-change material plate, after treating sample sclerosis after 2-3 hour, namely form removal obtains both sides structure is gypsum plank, and intermediate course structure is the phase change energy-storage gypsum wallboard of plastic bag sealing phase-change material plate.Wherein, the thickness of plastic bag sealing phase-change material plate is 1-2cm, and the one in the material be made from polypropylene of polybag, polyethylene, polyvinyl chloride, polystyrene, polyamide or thermoplastic polyester, the thickness of polybag is 10-50 μm.Land plaster is a kind of in high strength gypsum powder, building gypsum plaster or high-temperature calcination gypsum, in gypsum slurry, the ratio of land plaster and water is 1: 0.5-1: 0.7, in the present embodiment, the thickness of plastic bag sealing phase-change material plate is 1cm, and plastic bag material adopts polypropylene, and thickness is 20 μm, land plaster is building gypsum plaster, in gypsum slurry, the ratio of land plaster and water is 1: 0.6, in phase change energy-storage gypsum wallboard, and the volume content of plastic bag sealing phase-change material plate is 30%.The heat insulation contrast experiment of heat preservation of board under the phase change energy-storage gypsum wallboard prepare embodiment 3 and gypsum plank carry out imposing a condition, impose a condition for: room temperature is 12 DEG C, base surface 45 DEG C heating, remove base surface after constant Deng top board surface temperature to be heated, top board surface temperature situation of change in this process, experimental result refers to shown in table 3.
Table 3
As can be seen from table 1 to table 3, the phase change energy-storage gypsum wallboard that the present invention obtains, compared with gypsum plank, has and better controls Indoor environment temperature fluctuation, reduces the advantages such as building energy consumption.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (1)
1. the preparation method of a phase change energy-storage gypsum wallboard, adopt land plaster as primary raw material, it is characterized in that: to pour in rectangular polybag after phase-change material is melted and seal, keep flat, cooling is fixed into phase-change material plate, then the phase-change material plate after plastic bag sealing is inserted the mould inside of filling part gypsum slurry, after treating sample sclerosis after 2-3 hour, namely form removal obtains both sides structure is gypsum plank, intermediate course structure is the phase change energy-storage gypsum wallboard of plastic bag sealing phase-change material plate, wherein, described phase-change material adopts paraffin.
2. the preparation method of phase change energy-storage gypsum wallboard according to claim 1, is characterized in that: the thickness of described plastic bag sealing phase-change material plate is 1-2cm.
3. the preparation method of phase change energy-storage gypsum wallboard according to claim 1, is characterized in that: the one in described plastic bag sealing phase-change material plate in the material be made from polypropylene of polybag, polyethylene, polyvinyl chloride, polystyrene, polyamide or thermoplastic polyester.
4. the preparation method of phase change energy-storage gypsum wallboard according to claim 3, is characterized in that: the thickness of described polybag is 10-50 μm.
5. the preparation method of phase change energy-storage gypsum wallboard according to claim 1, is characterized in that: described land plaster is a kind of in high strength gypsum powder, building gypsum plaster or high-temperature calcination gypsum.
6. the preparation method of phase change energy-storage gypsum wallboard according to claim 1, is characterized in that: in described gypsum slurry, the ratio of land plaster and water is 1:0.5-1:0.7.
7. the preparation method of phase change energy-storage gypsum wallboard according to claim 1, is characterized in that: in described phase change energy-storage gypsum wallboard, and the volume content of plastic bag sealing phase-change material plate is 10%-30%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103669622A (en) * | 2013-12-09 | 2014-03-26 | 南京工业大学 | Anisotropic phase change energy storage composite board |
| CN104153513A (en) * | 2014-07-31 | 2014-11-19 | 苏州科技学院 | Capillary based phase-change energy-storage wallboard and preparation method thereof |
| CN112092141B (en) * | 2020-08-11 | 2022-03-29 | 北新集团建材股份有限公司 | Sandwich phase-change energy-storage gypsum board and preparation method thereof |
| CN112812748B (en) * | 2020-09-25 | 2021-11-19 | 齐鲁工业大学 | Energy storage temperature control material, preparation method thereof and application of material as building heat insulation layer |
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| JPH0372590A (en) * | 1989-08-11 | 1991-03-27 | Matsushita Electric Works Ltd | Preparation of heat storage board |
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Address after: 213141 Jiangsu Province, Changzhou city Wujin District Zou Quzhen Bu Yi Industrial Zone, Road No. 1 Patentee after: Jiangsu Nigao Science & Technology Co.,Ltd. Patentee after: Nanjing Tech University Patentee after: CHANGZHOU ARCHITECTUAL RESEARCH INSTITUTE GROUP Co.,Ltd. Address before: 213141 Jiangsu Province, Changzhou city Wujin District Zou Quzhen Bu Yi Industrial Zone, Road No. 1 Patentee before: Jiangsu Nigao Science & Technology Co.,Ltd. Patentee before: Nanjing Tech University Patentee before: CHANGZHOU ARCHITECTURAL RESEARCH INSTITUTE Co.,Ltd. |