CN103232213A - Phase-change energy-storage gypsum board improving energy-saving efficiency, and preparation method thereof - Google Patents
Phase-change energy-storage gypsum board improving energy-saving efficiency, and preparation method thereof Download PDFInfo
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- CN103232213A CN103232213A CN2013101182036A CN201310118203A CN103232213A CN 103232213 A CN103232213 A CN 103232213A CN 2013101182036 A CN2013101182036 A CN 2013101182036A CN 201310118203 A CN201310118203 A CN 201310118203A CN 103232213 A CN103232213 A CN 103232213A
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Abstract
The invention relates to a phase-change energy-storage gypsum board improving energy-saving efficiency, and a preparation method thereof. The invention belongs to the technical field of construction material. The gypsum board is prepared from the raw materials of, by weight, 65-85% of construction gypsum, 13-33% of a composite phase-change material CPCM, 0.5-2% of steel fiber, 1-3% of sodium carboxymethyl cellulose, and 0.1-0.8% of a polycarboxylate superplasticizer. According to the invention, sodium carboxymethyl cellulose is grind in a grinder, such that a powdery material is obtained, wherein a specific surface area reaches 400-500m<2>/kg; the powdery material is uniformly mixed with construction gypsum and the composite phase-change material CPCM according to the proportions, wherein the steel fiber is uniformly scattered in during the stirring process; the above material, water, and the polycarboxylate superplasticizer are stirred in a stirring container according to the proportions; when the material is uniform, the material is cast and molded; the test piece is maintained and bake-dried, and methyl hydrogen-containing silicone oil emulsion is uniformly sprayed on the surface of the test piece, such that the product is obtained. The invention provides the novel phase-change energy-storage gypsum board with improved strength, improved durability and improved energy-saving efficiency, and the preparation method thereof. The raw materials are easy to obtain, manufacturing method is simple, and energy-saving effect is substantial.
Description
Technical field
The invention belongs to building material technical field, be specifically related to phase-change energy-storage gypsum plate of a kind of raising energy-saving efficiency based on plaster of Paris and composite phase-change material and preparation method thereof.
Background technology
Composite phase-change material refers to be utilized the material that its a large amount of heats that absorb (emitting) when states of matter changes are used for energy storage, say simply to refer to those when solid-liquid phase change that energy storage density height, stable performance, transformation temperature is suitable and cost performance is good, can be used in the material of phase change energy storage technology.The simplest composite phase-change material such as paraffin just can store phase-change energy when being converted into solid-state (or the solid-state liquid state that is converted into) from liquid state.Phase change material mainly contains in the present application of building field: add phase change material in the common building material, utilize this material to make architectural exterior-protecting construction and reduce the indoor temperature fluctuation of buildings, improve comfort level, and can reduce heating and the refrigeration cost of buildings; In addition, add phase change material in lagging material, reach the purpose of energy-conservation temperature control equally, its energy-saving effect is very remarkable.
Plasterboard is the material of construction commonly used that a kind of consumption is big, purposes is wide, be used for indoor partition, decorative wall etc. in a large number, but ordinary gypsum board is not regulated functions such as temperature.If plaster of Paris and composite phase-change material CPCM(Composite Phase Change Materials) in conjunction with the phase-change energy-storage gypsum plate of making, then can when temperature is higher, absorb heat, release of heat when temperature is low, thereby keep the balance of room temp well, reduce the influence that it is subjected to the external temperature fluctuation, improve the comfortableness of indoor environment, reduce the use of air-conditioning equitemperature conditioning equipment, improve energy-conservation efficient.This technology is that of this area breaks through and innovation.
Yet because CPCM itself becomes graininess, can not react, cause itself and sticking of plasterboard matrix to gather property with gypsum relatively poor, can't form cohesive strength, makes the phase transformation plasterboard intensity of admixture CPCM lower; Simultaneously, because the porosity of plasterboard is big, water absorbability is strong, easily because water ratio changes the thermal conductivity instability that causes the phase transformation plasterboard, reduces phase-change energy-storage gypsum plate to the regulating effect of temperature in the life-time service process; In addition, because the thermal conductivity of plasterboard matrix is lower, can't make hot-fluid be transmitted to the CPCM particle rapidly, it is slower that its phase transformation is transformed, and energy storage efficiency is not in full use.
At the problems referred to above, the present invention proposes a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency and preparation method thereof, improve the glutinous poly-property of CPCM particle and plasterboard matrix by the admixture Xylo-Mucine, and then improve the intensity of plasterboard; Improve the water resisting property of plasterboard by surface spraying Methyl Hydrogen Polysiloxane Fluid emulsion; By the admixture steel fiber, improve pressure-proof and snap-resistent intensity and the thermal conductivity of plasterboard matrix, give full play to the phase transformation ability of CPCM.By above-mentioned measure, and then obtain the phase-change energy-storage gypsum plate of high energy-saving efficiency.
Summary of the invention
The objective of the invention is at phase-change energy-storage gypsum plate intensity low, shortcomings such as water absorbability is strong, heat transfer efficiency is low propose a kind of New-type phase change energy-storage gypsum plate that improves intensity, weather resistance and energy-saving efficiency and preparation method thereof, and its raw material obtains easily, manufacture craft is simple, and energy-saving effect is remarkable.
The technical scheme that realizes above-mentioned purpose is: a kind of phase-change energy-storage gypsum plate and preparation thereof that improves energy-saving efficiency is characterized in that various feed composition and content following (all by weight percentage):
The quality parameter of above-mentioned various materials requires as follows:
1) plaster of Paris CaSO
4(H
2O)
0.5Content 〉=65%, presetting period 〉=5min, final setting time≤25min, fineness (the 0.2mm sieve aperture tails over)≤5%.
2) the composite phase-change material phase transition temperature interval is 17 ℃-25 ℃, latent heat of phase change 〉=85J/g, unit weight 〉=0.7g/cm
3
3) steel fiber length≤1.5mm, diameter≤0.15mm.
4) substitution value of Xylo-Mucine (DS) is 0.7-0.8.
5) polycarboxylate water-reducer be solid or liquid all can, water-reducing rate 〉=18%.
The manufacture of gypsum board method is characterised in that: place grinding machine for grinding to obtain powder Xylo-Mucine, specific surface area reaches 400-500m
2/ kg.Mix in proportion with plaster of Paris, CPCM then, evenly be sprinkled into steel fiber in the whipping process.At last above-mentioned materials, water and polycarboxylate water-reducer are put into stirred vessel in proportion and stir, the back casting of waiting to stir.After the test specimen maintenance oven dry, get final product after evenly spraying Methyl Hydrogen Polysiloxane Fluid emulsion is carried out WATER REPELLENT on its surface this product.
The present invention do not fire, nontoxic, can be used as the heat insulating layer of indoor and outdoor furred ceiling and building enclosure, applied widely, can reduce the thickness of heat insulating plasterboard, more effectively improve the comfortableness of indoor environment, improve energy-saving efficiency.Simultaneously, the every index of phase-change energy-storage gypsum plate of the present invention meets the physicochemical property requirement among " plaster of Paris " (GBT 9776-2008), and wherein greater than 6.5MPa, folding strength is greater than 4MPa less than 0.5%, 2h ultimate compression strength for the water ratio of plasterboard.The present invention can significantly improve the energy-saving efficiency of indoor environment, has high social and economic benefit.
Embodiment
Below in conjunction with embodiment concrete enforcement of the present invention is described further, but the fact of the present invention and protection domain are not limited to following embodiment.The composition of used composite phase-change material comprises the paraffin that Shenyang wax factory produces (carbon chain lengths C12-C18), erythritol and polyvinyl alcohol in the specific embodiment.The different proportioning combination in chamber realizes different latent heat of phase change and the transformation temperatures of composite phase-change material by experiment.The various starting material of plasterboard are formed as shown in table 1:
The composition material proportioning of table 1 plasterboard
The used raw-material quality parameter of each embodiment in table 2 table 1
The preparation process of phase-change energy-storage gypsum plate is as follows: after at first steel fiber being poured out from bag, check, reject the part that corrosion, conglomeration are arranged; Then levigate Xylo-Mucine, plaster of Paris, CPCM are mixed in proportion, evenly be sprinkled into steel fiber in the whipping process.At last above-mentioned materials, a certain amount of water and polycarboxylate water-reducer are put into stirred vessel in proportion and stir, the back casting of waiting to stir.After the test specimen maintenance oven dry, get final product after evenly spraying Methyl Hydrogen Polysiloxane Fluid emulsion is carried out WATER REPELLENT on its surface product.
With the phase-change energy-storage gypsum plate of preparation method of the present invention preparation, have not only that safety is attractive in appearance, intensity is high and the stable characteristics of hot rerum natura such as thermal conductivity, and have excellent waterproof property, can prolong the work-ing life of member effectively.Situations such as laboratory and engineering application show that the phase-change energy-storage gypsum plate for preparing with the present invention has the excellent application performance energy.Table 3 has been listed among the embodiment comparison of performance between 4 plasterboards and the ordinary gypsum board.
The comparison of table 3 phase-change energy-storage gypsum plate and ordinary gypsum board performance
Claims (7)
1. phase-change energy-storage gypsum plate that improves energy-saving efficiency, it is characterized in that: each feed composition and content are by weight percentage: plaster of Paris 65%-85%, composite phase-change material CPCM13%-33%, steel fiber 0.5%-2%, Xylo-Mucine 1%-3%, polycarboxylate water-reducer 0.1%-0.8%.
2. a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency according to claim 1 is characterized in that: described plaster of Paris CaSO
4(H
2O)
0.5Content 〉=65%, presetting period 〉=5min, final setting time≤25min, fineness≤5%.
3. a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency according to claim 1, it is characterized in that: described composite phase-change material phase transition temperature interval is 17 ℃-25 ℃, latent heat of phase change 〉=85J/g, unit weight 〉=0.7g/cm
3
4. a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency according to claim 1 is characterized in that: described steel fiber length≤1.5mm, diameter≤0.15mm.
5. a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency according to claim 1, it is characterized in that: the substitution value DS of described Xylo-Mucine is 0.7-0.8.
6. a kind of phase-change energy-storage gypsum plate that improves energy-saving efficiency according to claim 1, it is characterized in that: described polycarboxylate water-reducer is solid or liquid, water-reducing rate 〉=18%.
7. according to any described a kind of preparation method who improves the phase-change energy-storage gypsum plate of energy-saving efficiency of claim 1-6, it is characterized in that: place grinding machine for grinding to obtain powder Xylo-Mucine, specific surface area reaches 400-500m
2/ kg; Mix in proportion with plaster of Paris, composite phase-change material CPCM then, evenly be sprinkled into steel fiber in the whipping process; At last above-mentioned materials, water and polycarboxylate water-reducer are put into stirred vessel in proportion and stir, the back casting of waiting to stir; After the test specimen maintenance oven dry, on its surface evenly spraying Methyl Hydrogen Polysiloxane Fluid emulsion get final product this product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218056A (en) * | 2015-10-19 | 2016-01-06 | 福建正霸新材料股份有限公司 | Materials for wall of a kind of adjustable indoor environment humiture and preparation method thereof |
| CN108017361A (en) * | 2017-12-14 | 2018-05-11 | 福州万山电力咨询有限公司 | A kind of high-strength, durable, waterproof fibre plasterboard |
| CN109025006A (en) * | 2018-09-13 | 2018-12-18 | 沈阳建筑大学 | A kind of energy-saving phase transformation desulfurated plaster wall and preparation method thereof |
| CN110791257A (en) * | 2019-10-08 | 2020-02-14 | 鞍钢股份有限公司 | Preparation method and device of directional heat transfer phase change heat storage material |
| CN111606653A (en) * | 2019-04-29 | 2020-09-01 | 中建材创新科技研究院有限公司 | Phase-change heat-storage gypsum plaster board and preparation method thereof |
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| CN101215112A (en) * | 2007-12-28 | 2008-07-09 | 同济大学 | Phase-change energy-storage gypsum plate and preparation method thereof |
| CN101648412A (en) * | 2008-08-14 | 2010-02-17 | 方承仕 | Method for producing gypsum building products by pressing process |
| CN102372475A (en) * | 2010-08-09 | 2012-03-14 | 袁艳平 | Proportioning and preparing method of novel phase-change energy storage gypsum board |
| CN102659377A (en) * | 2012-04-28 | 2012-09-12 | 昆明理工大学 | Thermal preservation energy saving composite phase change energy storage gypsum board prepared by using phosphorous gypsum and preparation method thereof |
-
2013
- 2013-04-07 CN CN2013101182036A patent/CN103232213A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215112A (en) * | 2007-12-28 | 2008-07-09 | 同济大学 | Phase-change energy-storage gypsum plate and preparation method thereof |
| CN101648412A (en) * | 2008-08-14 | 2010-02-17 | 方承仕 | Method for producing gypsum building products by pressing process |
| CN102372475A (en) * | 2010-08-09 | 2012-03-14 | 袁艳平 | Proportioning and preparing method of novel phase-change energy storage gypsum board |
| CN102659377A (en) * | 2012-04-28 | 2012-09-12 | 昆明理工大学 | Thermal preservation energy saving composite phase change energy storage gypsum board prepared by using phosphorous gypsum and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218056A (en) * | 2015-10-19 | 2016-01-06 | 福建正霸新材料股份有限公司 | Materials for wall of a kind of adjustable indoor environment humiture and preparation method thereof |
| CN108017361A (en) * | 2017-12-14 | 2018-05-11 | 福州万山电力咨询有限公司 | A kind of high-strength, durable, waterproof fibre plasterboard |
| CN109025006A (en) * | 2018-09-13 | 2018-12-18 | 沈阳建筑大学 | A kind of energy-saving phase transformation desulfurated plaster wall and preparation method thereof |
| CN111606653A (en) * | 2019-04-29 | 2020-09-01 | 中建材创新科技研究院有限公司 | Phase-change heat-storage gypsum plaster board and preparation method thereof |
| CN111606653B (en) * | 2019-04-29 | 2021-12-17 | 中建材创新科技研究院有限公司 | Phase-change heat-storage gypsum plaster board and preparation method thereof |
| CN110791257A (en) * | 2019-10-08 | 2020-02-14 | 鞍钢股份有限公司 | Preparation method and device of directional heat transfer phase change heat storage material |
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Address after: Sonoyama Road, Huli District of Xiamen city in Fujian province 361009 No. 802 room 704 Applicant after: China Building Material Test & Certification Group Xiamen Hongye Co., Ltd. Address before: Xiamen City, Fujian Province, North Hubin Road 361012 No. 201 Hongye Building 13 floor Applicant before: Xiamen Hongye Engineering Construction Technology Co., Ltd. |
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Application publication date: 20130807 |