CN101215112A - Phase-change energy-storage gypsum plate and preparation method thereof - Google Patents
Phase-change energy-storage gypsum plate and preparation method thereof Download PDFInfo
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- CN101215112A CN101215112A CNA2007101736690A CN200710173669A CN101215112A CN 101215112 A CN101215112 A CN 101215112A CN A2007101736690 A CNA2007101736690 A CN A2007101736690A CN 200710173669 A CN200710173669 A CN 200710173669A CN 101215112 A CN101215112 A CN 101215112A
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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
- 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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention adopts phase-change energy storage composite material powder of porous graphite bases and plaster materials to prepare phase-change plaster tablets equipped with functions of phase changing and energy storage. Firstly, pouring plaster powder and phase-change energy storage composite material powder of porous graphite bases which are weighed pro rata into a agitating pan, turning on a stirring mill to dry stir for 1-2 minutes, then adding water which is preliminarily weighed, then stirring for 2-3 minutes, finally pouring the stirring matters into a mould of a plaster tablet, removing shutters in two hours after sample hardening to obtain phase-change energy storage plaster tablets, the range of mixing proportion of the plaster material bases is that the proportion of plaster powder and water is 1:0.3-1.0, building gypsum plaster, high strength gypsum powder or plaster powder calcined in high temperature are capable of being used as plaster powder. The volume content of the phase-change and energy storage composite material powder of porous graphite bases is no more than 30%. The phase-change energy storage plaster tablet of the invention has the advantages of low costs, being capable of controlling temperature surge in building indoors, reducing energy consumption of building and the like.
Description
Technical field
The present invention relates to the energy-storage composite material field, be specially a kind of phase-change energy-storage gypsum plate and preparation method thereof.
Background technology
The raising energy use efficiency is an important problem in modern society's Sustainable development.Use in the total amount at the modern society energy, energy for building occupies very big proportion, some countries building field almost consumed 1/3rd of social total energy.Therefore, improving the building efficiency is very valuable for the energy use efficiency that improves entire society.The approach that improves the building efficiency can be divided into passive method and active method.Passive method utilizes the lower material of thermal conductivity coefficient to improve the building heat preserving heat-insulating capability, thereby improves its energy use efficiency.And the material that active method has an energy-storage function by utilization improves the efficiency of energy utilization of buildings.Energy storage material can be divided into two classes: sensible heat energy storage material and latent heat storage material.Example in architectural sensible heat energy storage with material has waterwall and Trombe wall.The heat energy that the heat energy that the material sensible heat stores stores much smaller than latent heat.For example specific heat of water belongs in various materials than higher, is 4.2J/g ℃.And the enthalpy of phase change of general phase-changing energy storage material tens to J/g between the hundreds of.Therefore, reach the level close with hidden heat energy storage, the temperature of sensible heat energy storage material will have ten to spend to the variation of 100 degree, almost is impossible.Excessive temperature variation is unfavorable for the use of energy.And the latent heat of phase change energy storage is except energy storage density is big, and it is highly stable that another advantage is exactly the energy storage temperature, and variation range is very little, is convenient to the use of energy.
The material that is used for phase-change accumulation energy is called phase change material.Research at present is the solid-liquid phase change material with more feasible phase change material often, promptly utilizes the material of solid-liquid phase change process heat energy storage.Gu the volume change that-gas or liquid-gas phase becomes is too big, and does not possess practical value.But also there is the problem of encapsulation in actual use in the solid-liquid phase change material.Research in early days and on probation in, people have selected for use some inorganic hydrated salts as phase change material and metal or the plastic containers packaging container as phase change material.There is serious etching problem in very fast discovery, adds the cold problem of mistake of inorganic hydrated salt, causes the non-constant of weather resistance.In recent years, there is the scholar to attempt in plasterboard or other porous construction material, directly soaking into the method for organic phase change material with organic phase change material, developed some phase-change accumulation energy material of construction, but defective such as these materials exist phase change material easily to ooze out more, and weather resistance is relatively poor.The gypsum material of employing or cement material and the compound preparation phase transformation of microencapsulated phase change material material of construction are also arranged, and its weather resistance is higher, but the material cost costliness.
Summary of the invention
At fields such as building energy conservations to existing energy storage density little in the requirement of phase-changing energy storage material and the existing phase transformation material of construction, energy storage temperature instability, the problem that variation range is big, the phase transformation plasterboard that the present invention adopts porous graphite base phase-change energy-storage composite material micro mist and gypsum material preparation to have the phase-change accumulation energy function, its preparation method is as follows.
It at first is the preparation of porous graphite base phase-change energy-storage composite material micro mist.Porous graphite base phase-change energy-storage composite material micro mist mainly is made of porous graphite micro mist and organic phase change material, and wherein the porous graphite micro mist is through intercalation, expanded, compression with pulverize supervisor and be prepared from by natural flake graphite.Organic phase change material comprises organic materialss such as crystallinity straight chain fatty acid, alkane, ester class and composition thereof.In preparation process, at first, prepare a certain amount of porous graphite micro mist by above-mentioned preparation method.By predetermined formula rate, take by weighing porous graphite micro mist and selected organic phase change material, then as the butyl stearate organic phase change material.Accurately two kinds of material mixing after the weighing fully stir compound together.In order to allow organic phase change material can more fully under liquid state, be penetrated in the hole of porous graphite micro mist, our two kinds of materials after will mixing were placed in the baking oven that is higher than the organic phase change material transformation temperature constant temperature more than 24 hours, obtained evenly porous graphite base phase-change energy-storage composite material micro mist fully of absorption.More detailed preparation method is referring to patent of invention ZL200410052870.X.
Be the preparation of phase-change energy-storage gypsum plate then.Adopting porous graphite base phase-change energy-storage composite material micro mist is filler, prepares phase-change energy-storage gypsum plate with formation body materials such as terra albas.Its concrete preparation process is: at first terra alba that will take by weighing in proportion and porous graphite base phase-change energy-storage composite material micro mist are poured in the agitator kettle, start the stirrer dry mixing, 1～2 minute dry mixing time, add measured in advance water then, restir 2～3 minutes, to stir thing at last and pour among the plasterboard mould, treat after 2 hours that sample sclerosis form removal afterwards promptly obtains phase-change energy-storage gypsum plate.It is terra alba that the gypsum material matrix cooperates proportional range: water=1: 0.3 to 1: 1.0.Terra alba can adopt building gypsum plaster, high strength gypsum powder or high-temperature calcination gypsum.The volume content that porous graphite base phase-change energy-storage composite material micro mist accounts for plasterboard is not higher than 30%.
That phase-change energy-storage gypsum plate of the present invention has is cheap, can control the buildings fluctuations in indoor temperature, reduce advantages such as building energy consumption.
Description of drawings
Fig. 1 is that porous graphite base phase-change energy-storage composite material micro mist volume is the DSC curve of 10% phase-change energy-storage gypsum plate;
Fig. 2 is that porous graphite base phase-change energy-storage composite material micro mist volume is the DSC curve of 20% phase-change energy-storage gypsum plate;
Fig. 3 is that porous graphite base phase-change energy-storage composite material micro mist volume is the DSC curve of 30% phase-change energy-storage gypsum plate.
Embodiment
Embodiment 1
The employing quality is that building gypsum plaster, tap water, the porous graphite base phase-change energy-storage composite material micro mist of acceptable end product prepares phase-change energy-storage gypsum plate.Wherein porous graphite base phase-change energy-storage composite material micro mist is made up of the butyl stearate and the porous graphite micro mist of technical grade purity, and mass ratio is 5: 1, and promptly phase change material accounts for 83% of matrix material total mass.The proportioning of plaster matrix is a terra alba: water=1: 0.5.Pour in the agitator kettle with the porous graphite base phase-change energy-storage composite material micro mist that accounts for plasterboard volume content 10% having taken by weighing a certain amount of terra alba in proportion, started the stirrer dry mixing 1 minute.Add measured in advance water afterwards, stir after two minutes, pour among the plasterboard shaping dies, treat after 2 hours that sample sclerosis form removal afterwards promptly obtains phase-change energy-storage gypsum plate.The DSC experiment is carried out in sampling from plasterboard.What DSC experiment was adopted is that the Q100 type differential scanning calorimeter that U.S. TA instrument company produces is measured, and test is carried out in the nitrogen environment under normal pressure, and the sample temperature-rise period rises to 30 ℃ from-10 ℃, and temperature rise rate is 5 ℃/min; Temperature-fall period is reduced to-10 ℃ from 30 ℃, and rate of temperature fall is 5 ℃/min.Fig. 1 is its DSC curve.
Embodiment 2
The employing quality is that building gypsum plaster, tap water, the porous graphite base phase-change energy-storage composite material micro mist of acceptable end product prepares phase-change energy-storage gypsum plate.Wherein porous graphite base phase-change energy-storage composite material micro mist is made up of the stearic acid and the porous graphite micro mist of technical grade purity, and mass ratio is 5: 1, and promptly phase change material accounts for 83% of matrix material total mass.The proportioning of plaster matrix is a terra alba: water=1: 0.5.Pour in the agitator kettle with the porous graphite base phase-change energy-storage composite material micro mist that accounts for plasterboard volume content 20% having taken by weighing a certain amount of terra alba in proportion, started the stirrer dry mixing 1 minute.Add measured in advance water afterwards, stir after two minutes, pour among the plasterboard shaping dies, treat after 2 hours that sample sclerosis form removal afterwards promptly obtains phase-change energy-storage gypsum plate.The DSC experiment is carried out in sampling from plasterboard.What DSC experiment was adopted is that the Q100 type differential scanning calorimeter that U.S. TA instrument company produces is measured, and test is carried out in the nitrogen environment under normal pressure, and the sample temperature-rise period rises to 30 ℃ from-10 ℃, and temperature rise rate is 5 ℃/min; Temperature-fall period is reduced to-10 ℃ from 30 ℃, and rate of temperature fall is 5 ℃/min.Fig. 2 is its DSC curve.
Embodiment 3
The employing quality is that building gypsum plaster, tap water, the porous graphite base phase-change energy-storage composite material micro mist of acceptable end product prepares phase-change energy-storage gypsum plate.Wherein porous graphite base phase-change energy-storage composite material micro mist is made up of the paraffin and the porous graphite micro mist of technical grade purity, and mass ratio is 5: 1, and promptly phase change material accounts for 83% of matrix material total mass.The proportioning of plaster matrix is a terra alba: water=1: 0.5.Pour in the agitator kettle with the porous graphite base phase-change energy-storage composite material micro mist that accounts for plasterboard volume content 30% having taken by weighing a certain amount of terra alba in proportion, started the stirrer dry mixing 1 minute.Add measured in advance water afterwards, stir after two minutes, pour among the plasterboard shaping dies, treat after 2 hours that sample sclerosis form removal afterwards promptly obtains phase-change energy-storage gypsum plate.The DSC experiment is carried out in sampling from plasterboard.What DSC experiment was adopted is that the Q100 type differential scanning calorimeter that U.S. TA instrument company produces is measured, and test is carried out in the nitrogen environment under normal pressure, and the sample temperature-rise period rises to 30 ℃ from-10 ℃, and temperature rise rate is 5 ℃/min; Temperature-fall period is reduced to-10 ℃ from 30 ℃, and rate of temperature fall is 5 ℃/min.Fig. 3 is its DSC curve.
By Fig. 1 to Fig. 3 as can be seen, along with the increase of porous graphite base phase-change energy-storage composite material micro mist content in plasterboard, the corresponding increase of the heat storage capacity of plasterboard (Δ H).
Claims (9)
1. a phase-change energy-storage gypsum plate is characterised in that, comprises porous graphite base phase-change energy-storage composite material micro mist, terra alba.
2. phase-change energy-storage gypsum plate as claimed in claim 1 is characterised in that, porous graphite base phase-change energy-storage composite material micro mist comprises porous graphite micro mist and organic phase change material; The mass ratio of porous graphite micro mist and organic phase change material is between 8: 1 to 12: 1.
3. phase-change energy-storage gypsum plate as claimed in claim 2 is characterised in that, wherein the porous graphite micro mist is to be prepared from through intercalation, expanded, compression and pulverizing program by natural flake graphite.
4. phase-change energy-storage gypsum plate as claimed in claim 2 is characterised in that, described organic phase change material comprises crystallinity straight chain fatty acid, alkane, ester class and composition thereof; Specifically comprise stearic acid, butyl stearate and paraffin.
5. phase-change energy-storage gypsum plate as claimed in claim 1 is characterised in that described terra alba comprises building gypsum plaster, high strength gypsum powder or high-temperature calcination gypsum.
6. phase-change energy-storage gypsum plate as claimed in claim 2 is characterised in that described phase change material accounts between the 75-90% of matrix material total mass.
7. phase-change energy-storage gypsum plate as claimed in claim 2 is characterised in that, described porous graphite base phase-change energy-storage composite material micro mist accounts for the volume content of plasterboard smaller or equal to 30%.
8. prepare the method for the described phase-change energy-storage gypsum plate of claim 1-7, comprising:
(1) porous graphite micro mist and organic phase change material are fully mixed, under 50-80 ℃ of temperature condition, constant temperature 20-36 hour;
(2) terra alba that will take by weighing in proportion and porous graphite base phase-change energy-storage composite material micro mist mix, and dry mixing 1-2 minute, add the water of weighing in proportion, restir 2-3 minute;
(3) the stirring thing that above step is obtained is poured among the plasterboard mould, treats after 2 hours that sample sclerosis form removal afterwards promptly obtains phase-change energy-storage gypsum plate.
9. as preparing the method for phase-change energy-storage gypsum plate as described in the claim 8, be characterised in that the ratio of described terra alba of step (2) and water is between 1: 0.3 to 1: 1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101736690A CN101215112A (en) | 2007-12-28 | 2007-12-28 | Phase-change energy-storage gypsum plate and preparation method thereof |
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| CNA2007101736690A CN101215112A (en) | 2007-12-28 | 2007-12-28 | Phase-change energy-storage gypsum plate and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432258A (en) * | 2011-08-31 | 2012-05-02 | 南京工业大学 | Shaped phase change energy storage material for building and preparation method thereof |
| CN103232213A (en) * | 2013-04-07 | 2013-08-07 | 厦门市宏业工程建设技术有限公司 | Phase-change energy-storage gypsum board improving energy-saving efficiency, and preparation method thereof |
| CN103555280A (en) * | 2013-10-21 | 2014-02-05 | 郑州大学 | Organic phase change thermal storage material and production method thereof |
| CN106082921A (en) * | 2016-06-30 | 2016-11-09 | 云南瑞沃思新能源科技有限公司 | A kind of New-type phase change energy-storage gypsum plate |
| CN108218372A (en) * | 2017-12-08 | 2018-06-29 | 西能化工科技(上海)有限公司 | Ultralight energy-storage gypsum plate and preparation method thereof |
| CN109180125A (en) * | 2018-09-21 | 2019-01-11 | 中国科学院山西煤炭化学研究所 | A kind of porous graphite base phase-transition heat-storage plasterboard and preparation method thereof |
| CN111434746A (en) * | 2019-01-14 | 2020-07-21 | 中关村人居环境工程与材料研究院 | Phase-change energy storage material filled with phosphogypsum, phase-change energy storage plate 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 |
| CN113175174A (en) * | 2021-06-09 | 2021-07-27 | 重庆大学 | Phase change heat storage plate for building |
| CN115246731A (en) * | 2021-12-21 | 2022-10-28 | 兰州理工大学 | Phase-change gypsum block and preparation method thereof |
-
2007
- 2007-12-28 CN CNA2007101736690A patent/CN101215112A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432258A (en) * | 2011-08-31 | 2012-05-02 | 南京工业大学 | Shaped phase change energy storage material for building and preparation method thereof |
| CN103232213A (en) * | 2013-04-07 | 2013-08-07 | 厦门市宏业工程建设技术有限公司 | Phase-change energy-storage gypsum board improving energy-saving efficiency, and preparation method thereof |
| CN103555280A (en) * | 2013-10-21 | 2014-02-05 | 郑州大学 | Organic phase change thermal storage material and production method thereof |
| CN103555280B (en) * | 2013-10-21 | 2015-10-07 | 郑州大学 | A kind of Organic phase change thermal storage material and production method thereof |
| CN106082921A (en) * | 2016-06-30 | 2016-11-09 | 云南瑞沃思新能源科技有限公司 | A kind of New-type phase change energy-storage gypsum plate |
| CN108218372B (en) * | 2017-12-08 | 2020-11-10 | 西能化工科技(上海)有限公司 | Ultra-light energy storage gypsum board and preparation method thereof |
| CN108218372A (en) * | 2017-12-08 | 2018-06-29 | 西能化工科技(上海)有限公司 | Ultralight energy-storage gypsum plate and preparation method thereof |
| CN109180125A (en) * | 2018-09-21 | 2019-01-11 | 中国科学院山西煤炭化学研究所 | A kind of porous graphite base phase-transition heat-storage plasterboard and preparation method thereof |
| CN111434746A (en) * | 2019-01-14 | 2020-07-21 | 中关村人居环境工程与材料研究院 | Phase-change energy storage material filled with phosphogypsum, phase-change energy storage plate 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 |
| CN113175174A (en) * | 2021-06-09 | 2021-07-27 | 重庆大学 | Phase change heat storage plate for building |
| CN113175174B (en) * | 2021-06-09 | 2023-01-31 | 重庆大学 | Phase change heat storage plate for building |
| CN115246731A (en) * | 2021-12-21 | 2022-10-28 | 兰州理工大学 | Phase-change gypsum block and preparation method thereof |
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Open date: 20080709 |