CN109384436A - A kind of phase-change energy-storage temperature adjustment mortar and preparation method thereof - Google Patents
A kind of phase-change energy-storage temperature adjustment mortar and preparation method thereof Download PDFInfo
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- CN109384436A CN109384436A CN201710693927.1A CN201710693927A CN109384436A CN 109384436 A CN109384436 A CN 109384436A CN 201710693927 A CN201710693927 A CN 201710693927A CN 109384436 A CN109384436 A CN 109384436A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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Abstract
The invention belongs to energy-saving building materials technical fields, and in particular to a kind of phase-change energy-storage temperature adjustment mortar and preparation method thereof.It include macromolecule interpenetrating networks composite setting phase-change material in the phase-change energy-storage temperature adjustment mortar, the macromolecule interpenetrating networks composite setting phase-change material is dispersed in the phase-change energy-storage temperature adjustment mortar.The macromolecule interpenetrating networks composite setting phase-change material includes at least two polymer network structures being intertwined, and hole configurations is distributed in polymer network structure.Phase-change energy-storage temperature adjustment mortar of the present invention is not easy to crack, and leakage will not occur when with mortar physical blending for phase-change material and energy-saving and temperature-regulating effect is good, and preparation process is simple, at low cost, convenient for promoting.
Description
Technical field
The invention belongs to energy-saving building materials technical fields, and in particular to a kind of phase-change energy-storage temperature adjustment mortar and its preparation side
Method.
Background technique
The requirement of promotion and people recently as people's energy conservation and environmental awareness to the comfort level of indoor environment is increasingly
It improves, heat-preserving energy-saving type building materials increasingly receive extensive attention.
Currently, phase-changing energy-storing building materials are the research hotspots of energy-saving building material.The prior art is usually will be organic
Or inorganic phase-changing material is introduced into traditional construction material, heat absorption, heat release behavior when using phase-change material generation phase transition assign multiple
Close the function of phase transformation construction material energy-saving and temperature-regulating.The building enclosure that building is constructed using phase-changing energy-storing building materials, can be improved
The heat storage capacity of building enclosure reduces the fluctuating range of room temperature, shortens the runing time of building heating, air-conditioning equipment,
Achieve the purpose that energy-saving and improves residence comfort.Meanwhile phase-changing energy-storing building enclosure is used between floors, it can subtract
Few peripheral structure thickness, to achieve the purpose that mitigate building self weight, save construction material.
Phase-change energy-storage mortar is one of the typical products of phase-change accumulation energy building materials field, it will have special package form
Composite phase-change material is incorporated into traditional mortar as function ingredients, is prepared by Optimal improvements formula.It prepares resulting
Energy-storage mortar can be applied to the plastering structure of indoor wall, make it have energy storage and temperature adjustment function.
The composite phase-change material of the domestic energy-saving and temperature-regulating mortar for construction material includes being encapsulated in a manner of microcapsules at present
(Chinese patent CN101671149, CN104609791, CN103771808), the immobilized mode of inorganic porous carrier adsorption are sealed
The method of dress method (CN103570311, CN101654350, CN103059817) preparation.The composite phase-change material of microcapsules encapsulation
Although material energy-saving and temperature-regulating mortar can solve loss and leakage problems, but preparation process is complicated, and production cost is high, it is difficult to
Building materials field obtains extensive promotion and application.The composite phase-change material energy-saving and temperature-regulating sand of inorganic porous carrier adsorption packaged type
Slurry needs vacuum and heating equipment to be handled mostly, and complex process, in practical application, there are inconveniences.Therefore, existing
All there is certain technology and economic problems in the incorporation microcapsules or porous shaped composite phase-change material that technology has disclosed, it is difficult to
It is promoted and applied in the field of building materials.
So urgently a kind of new phase-change energy-storage temperature adjustment mortar is to overcome the problems of the above-mentioned prior art.
Apply in view of this, the present invention is specifically proposed.
Summary of the invention
The primary purpose of the present invention is that a kind of phase-change energy-storage temperature adjustment mortar is provided, the phase-change energy-storage temperature adjustment mortar packet
Include macromolecule interpenetrating networks composite setting phase-change material, inorganic solid particles object and phase in the phase-change energy-storage temperature adjustment mortar
Become strands of material and frap close, the effect of energy-saving and temperature-regulating is good.
In order to solve the technical problem, reach the technical effect, the technical solution adopted by the present invention it is basic
Thinking is as follows:
A kind of phase-change energy-storage temperature adjustment mortar includes that macromolecule interpenetrating networks are compound fixed in the phase-change energy-storage temperature adjustment mortar
Type phase-change material, the macromolecule interpenetrating networks composite setting phase-change material are dispersed in the phase-change energy-storage temperature adjustment sand
In slurry.
It include macromolecule inierpeneirating network structure in phase-change energy-storage temperature adjustment mortar of the present invention, due to macromolecule interpenetrating networks
Structure has the constraint effect of strength, and macromolecule interpenetrating networks composite setting phase-change material will not be sent out when with mortar physical blending
Raw leakage, and do not needed during the preparation process using vacuumizing or heating equipment.
The macromolecule interpenetrating networks composite setting phase-change material includes at least two polymer networks being intertwined
Structure, and hole configurations is distributed in polymer network structure.
The characteristic of the polymer network structure makes the phase more stable homogeneous of phase-change energy-storage temperature adjustment mortar, improves
The temperature-adjusting energy-storage effect of phase-change energy-storage temperature adjustment mortar, and the probability that phase-change energy-storage temperature adjustment mortar cracks when in use is lower,
Significantly improve the property of phase-change energy-storage temperature adjustment mortar.
The diameter of the hole configurations is Nano grade.
Solid powder is filled in the hole configurations.
The solid powder is cement or sand or calcium powder etc. commonly used in the art.
Preferably, macromolecule interpenetrating networks composite setting phase-change material has the formed by poly- N hydroxymethyl acrylamide
One network structure, the second network structure formed by polyethylene glycol, the second network structure are bound by the inside of first network structure.
Form preferable intermolecular force between above-mentioned first network structure and the second network structure, especially have compared with
Good intermolecular hydrogen bonding active force, the two, which cooperates, coordinates can be improved the constraint intensity of interpenetrating networks, make phase-change material with
Inorganic solid particles ingredient in mortar is tightly combined, effectively prevent phase-change material leakage or mortar smear after crack ask
Topic.
Preferably:
18~60 DEG C of transition temperature range of macromolecule interpenetrating networks composite setting phase-change material, phase transformation enthalpy 70~
150J/g；
The particle size range of macromolecule interpenetrating networks composite setting phase-change material is 0.07~0.7mm.
Transition temperature range, phase transformation enthalpy and the particle size range of above-mentioned macromolecule interpenetrating networks composite setting phase-change material
The energy-saving and temperature-regulating effect that mortar can be improved, reduces the fluctuating range of room temperature, further shortens building heating, air-conditioning is set
Standby runing time achievees the effect that preferably energy-saving and improves residence comfort.
The content of the macromolecule interpenetrating networks composite setting phase-change material (IPN composite setting phase-change material) accounts for described
1~35wt% of phase-change energy-storage temperature adjustment mortar.
It preferably, further include be selected from styrene-acrylic emulsion, vinegar third or pure-acrylic emulsion one in the phase-change energy-storage temperature adjustment mortar
The hydroxyl of kind or several lotions, lotion and polyethylene glycol backbone interacts and forms package.
Preferably, phase-change energy-storage temperature adjustment mortar of the invention further includes in hydrophober, cellulose ether or polymer fiber
It is one or more of.
The content of the hydrophober accounts for 0~1wt% of the phase-change energy-storage temperature adjustment mortar；It is preferred that 0.4~0.9wt%；
The content of the cellulose ether accounts for 0~1wt% of the phase-change energy-storage temperature adjustment mortar；It is preferred that 0.3~1wt%；
The content of the polymer fiber accounts for 0~10wt% of the phase-change energy-storage temperature adjustment mortar；It is preferred that 2~
10wt%；
Preferably, the polymer fiber is the polypropylene fibre that length is 1~6mm, more preferably the polypropylene of 3mm
Fiber.
The polypropylene fibre of above-mentioned length range, the lotion are the same as macromolecule interpenetrating networks composite setting of the present invention
The mutually coordinated cooperation of phase-change material improves the constraint intensity of interpenetrating networks, improves encapsulation and toughening effect, reduces the cracking of mortar
Probability and promote energy-saving and temperature-regulating effect.
It is mutual to solve macromolecule using lotion encapsulation and polymer fiber toughening technology for the phase-change energy-storage temperature adjustment mortar
The consistency problem and the mortar under high phase-change material loading for wearing network combined sizing phase-change material and inorganic gel materials
Problem of Cracking.Inorganic gel materials refer to cement, calcium powder etc..
Preferably, the molecular weight of polyethylene glycol is 2000~10000.
Preferably, a kind of phase-change energy-storage temperature adjustment mortar, using IPN composite setting phase-change material as functional filler, packet
Include following ingredients:
The IPN composite setting phase-change material is macromolecule interpenetrating networks composite setting phase-change material.
Cement of the present invention is the mixing of one or more of portland cement, high alumina cement or sulphur aluminum water mud
Object.
Lotion of the present invention is the mixture of the middle one or more of styrene-acrylic emulsion, acrylate and vinyl acetate emulsion or pure-acrylic emulsion.
Above-mentioned phase-change energy-storage temperature adjustment mortar uses IPN composite setting phase-change material, and each component is according to above-mentioned
Proportion is mixed with, and resulting phase-change energy-storage temperature adjustment mortar can preferably bear the shearing friction between inorganic particulate
Power, overcomes the defect of the generally existing phase-change material leakage of energy-saving temperature-regulating mortar in the prior art, to have excellent, stable
Energy-saving and temperature-regulating performance, can further increase the heat storage capacity of enclosed structure, reduce fluctuations in indoor temperature amplitude, energy conservation subtracts
Consumption, can be advantageously applied to energy-saving building materials technical field.
In addition, the phase-change energy-storage temperature adjustment mortar mix is solved using lotion encapsulation and polymer fiber toughening technology
The sand under consistency problem and high phase-change material loading between interpenetrating network formed phase-change material and inorganic gel materials
Slurry is easy the problem of cracking.
And the material price that above-mentioned phase-change energy-storage temperature adjustment mortar uses is cheap, is easy to get, and the method prepared
Simply, the cost of phase-change energy-storage temperature adjustment mortar can be reduced significantly, be suitable for marketing and utilized.
Preferably, IPN composite setting phase-change material is by network monomer N hydroxymethyl acrylamide, crosslinking agent N, N- methylene
Bisacrylamide, phase-change material polyethylene glycol, water and initiator ammonium persulfate are prepared, and phase-change material polyethylene glycol
Molecular weight is 2000~10000.Specific preparation method can refer to CN102061148A.
Hydroxyl in polyethylene glycol backbone in above-mentioned IPN composite setting phase-change material with and lotion form package, help
In the network structure for forming strength constraint, and it carries out with mortar being not easy to reveal when physical blending, avoids phase-change material
Leakage.In addition, the phase-change energy-storage temperature adjustment mortar is not having to vacuumize and in the case where heating equipment, so that it may be formed firm strong
The network structure of power constraint, energy-saving consumption-reducing, and simple process.
Preferably, the particle size range of IPN composite setting phase-change material is 0.07~0.7mm, transition temperature range 18~60
DEG C, phase transformation enthalpy is in 70~150J/g.
IPN composite setting phase-change material with above-mentioned granularity, phase transition temperature and phase transformation enthalpy can be improved to coagulate with inorganic
Compatibility between glue material makes resulting phase-change energy-storage temperature adjustment mortar have better energy-saving and temperature-regulating effect, and avoids sand
The problem of slurry cracking.
Preferably, sand includes 40~70 mesh sand and 70~140 mesh sand, and the parts by weight ratio of the two is 1:1.
It is mixed with using the sand, the probability of mortar cracking can be reduced, go along with sb. to guard him knot when being used for manufacture
It can preferably be kept the temperature when structure, stability is more preferable.
Preferably, the fineness of calcium powder is 100~600 mesh, it is therefore preferable to 200~400 mesh.
Above-mentioned calcium powder can be further improved the heat resistance of mortar, wearability, and raising makes phase-change energy-storage temperature adjustment
Mortar has better dimensional stability after being applied to metope, promotes energy-saving and temperature-regulating effect.
Preferably, cellulose ether is hydroxypropyl methyl cellulose ether, and viscosity is 20000PaS~60000PaS.
After the hydroxypropyl methyl cellulose ether dissolves in water, surface-active action is played, cementitious material is promoted to exist
Solid particle is effectively uniformly distributed and wrapped in network structure, is formed one layer of lubricating film in its outer surface, is made mortar
It is more stable, mortar is further improved in the mobility of whipping process and the slipping of construction.
The hydroxypropyl methyl cellulose ether of above-mentioned viscosity makes the moisture in mortar be not easy to lose, and in long period of time
It inside gradually discharges, assigns the better water-retaining property of phase-change energy-storage temperature adjustment mortar and workability, improve the storage of phase-change energy-storage temperature adjustment mortar
It can thermoregulatory effect.
Preferably, the length of polypropylene fibre is 1~6mm, preferably 2~4mm, more preferably 3mm.
The polypropylene fibre has better toughening effect, together with lotion and IPN composite setting phase-change material
Cooperation assigns the better stability of interpenetrating networks, improves the compatibility between phase-change material and inorganic gel materials, prevents mortar
Cracking.
Phase-change energy-storage temperature adjustment mortar of the present invention have it is following the utility model has the advantages that
(1) interpenetrating networks shaping phase-change material is used, in preparation phase transition mortar whipping process, inorganic particulate can be born
Between shearing friction power, solve the leakage problem of phase-change material；
(2) the interpenetrating networks shaping phase-change material size tunable, easily-controllable, can be obtained rationally by simple disintegrating apparatus
Particle size range；
(3) consistency problem between interpenetrating network formed phase-change material and inorganic gel materials and high phase transformation are solved
The problem of mortar under material loading level is easy cracking；
(4) intercrossed network type sizing phase-change material preparation method used by is simple, nontoxic, and cost is relatively low, convenient for promoting
It utilizes.
Another free-revving engine of the invention is to provide a kind of substrate, with any one phase transformation described in content as above
Energy-saving and temperature-regulating mortar.
Another free-revving engine of the invention is to provide a kind of preparation method of phase-change energy-storage temperature adjustment mortar, including following step
It is rapid:
(1) macromolecule interpenetrating networks composite setting phase-change material is prepared；
(2) granularity, temperature and the phase transformation enthalpy of resulting macromolecule interpenetrating networks composite setting phase-change material are sieved
Choosing, is then dried crushing；
(3) according to formulation content weigh macromolecule interpenetrating networks composite setting phase-change material, adjuvant and solid powder into
Row premixing, obtains mixture A, the lotion of formulation content is stirred to get slurries；
(4) obtained mixture A is added in slurries, be stirred to mixture A be uniformly dispersed to get.
Adjuvant of the present invention refers to hydrophober, cellulose ether and polypropylene fibre.
The preparation method simple process of the phase-change energy-storage temperature adjustment mortar is easy to control, low in cost and resulting
Phase-change energy-storage temperature adjustment mortar has excellent energy-saving and temperature-regulating performance, is not in mortar cracking, it is general to avoid energy-saving temperature-regulating mortar
All over the defect of existing phase-change material leakage.
The method of the present invention for preparing IPN composite setting phase-change material is referring in particular to Chinese patent CN102061148
Embodiment one described in method, it will not be described here.
Preferably, the particle size range of the step (2) screening is 0.07~0.7mm, 18~60 DEG C of transition temperature range, phase
Become enthalpy in 70~150J/g.
Screening resulting IPN composite setting phase-change material according to above-mentioned standard can be improved between inorganic gel materials
Compatibility makes resulting phase-change energy-storage temperature adjustment mortar have better energy-saving and temperature-regulating effect, and avoids the problem that mortar cracks.
Preferably, the premixing time of the step (3) is 10~15 minutes, and the step (4) is stirred the time
For 5~7min.
The uniform particle sizes of phase-change energy-storage temperature adjustment mortar can be made orderly according to above-mentioned method preparation, and mortar is not easy
The problem of cracking, and energy consumption is saved, shorten manufacturing time.
It is protected the present invention also provides a kind of using the preparation phase transformation of any one phase-change energy-storage temperature adjustment mortar described in content as above
The purposes of warm composite plate.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the DSC curve of the phase-change energy-storage temperature adjustment mortar of embodiment 1；
Fig. 2 is the DSC curve of the phase-change energy-storage temperature adjustment mortar of embodiment 2；
Fig. 3 is the DSC curve of the phase-change energy-storage temperature adjustment mortar of embodiment 3；
Fig. 4 is the temperature-time curve figure of 1 gained phase-change energy-storage temperature adjustment mortar of embodiment；
Fig. 5 is the temperature-time curve figure of 2 gained phase-change energy-storage temperature adjustment mortar of embodiment；
Fig. 6 is the temperature-time curve figure of 3 gained phase-change energy-storage temperature adjustment mortar of embodiment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below to the technical side in embodiment
Case is clearly and completely described, and following embodiment is used to explain the present invention, but is not intended to limit the scope of the invention.
Embodiment 1
A kind of phase-change energy-storage temperature adjustment mortar, including following composition:
Wherein, the molecular weight of the polyethylene glycol in IPN composite setting phase-change material is 2000~10000, polypropylene fibre
Length be 3mm.
Use the preparation method is as follows:
(1) IPN composite setting phase-change material is prepared；
(2) granularity, temperature and phase transformation enthalpy of resulting IPN composite setting phase-change material are screened, is then carried out
The particle size range of drying and crushing, screening is 0.07~0.7mm, and 18~60 DEG C of transition temperature range, phase transformation enthalpy is in 70~150J/
g；
(3) IPN composite setting phase-change material, adjuvant and solid powder are weighed according to formulation content to be pre-mixed, is obtained
To mixture A, the lotion of formulation content is stirred to get into slurries, the adjuvant refers to hydrophober, cellulose ether and polypropylene
Fiber；
(4) obtained mixture A is added in slurries, be stirred to mixture A be uniformly dispersed to get.
Wherein, the method for IPN composite setting phase-change material is referring in particular in the embodiment one of Chinese patent CN102061148
The method.
Embodiment 2
A kind of phase-change energy-storage temperature adjustment mortar, including following composition:
Wherein, the molecular weight of the polyethylene glycol in IPN composite setting phase-change material is 2000~10000, polypropylene fibre
Length be 3mm, the fineness of calcium powder is 100~600 mesh, the viscosity of hydroxypropyl methyl cellulose ether be 20000PaS~
60000Pa·S。
Use the preparation method is as follows:
(1) IPN composite setting phase-change material is prepared；
(2) granularity, temperature and phase transformation enthalpy of resulting IPN composite setting phase-change material are screened, is then carried out
The particle size range of drying and crushing, screening is 0.07~0.7mm, and 18~60 DEG C of transition temperature range, phase transformation enthalpy is in 70~150J/
g；
(3) macromolecule interpenetrating networks composite setting phase-change material (IPN composite setting phase transformation material is weighed according to formulation content
Material), adjuvant (hydrophober, cellulose ether and polypropylene fibre) and solid powder carry out premixing 10~15 minutes, mixed
Object A is closed, the lotion of formulation content is stirred to get into slurries；
(4) obtained mixture A is added in slurries, be stirred 5~7min to mixture A be uniformly dispersed to get.
Wherein, the method for IPN composite setting phase-change material is referring in particular in the embodiment one of Chinese patent CN102061148
The method.
Embodiment 3
A kind of phase-change energy-storage temperature adjustment mortar, including following composition:
Wherein, the molecular weight of the polyethylene glycol in IPN composite setting phase-change material is 2000~10000, polypropylene fibre
Length be 3mm, the fineness of calcium powder is 100~600 mesh, the viscosity of hydroxypropyl methyl cellulose ether be 20000PaS~
60000Pa·S。
Use the preparation method is as follows:
(1) IPN composite setting phase-change material is prepared；
(2) granularity, temperature and phase transformation enthalpy of resulting IPN composite setting phase-change material are screened, is then carried out
The particle size range of drying and crushing, screening is 0.2~0.6mm, and 29~56 DEG C of transition temperature range, phase transformation enthalpy is in 85~130J/
g；
(3) IPN composite setting phase-change material, adjuvant (hydrophober, cellulose ether and polypropylene are weighed according to formulation content
Fiber) and solid powder carry out premixing 10~15 minutes, obtain mixture A, the lotion of formulation content stirred to get into slurries；
(4) obtained mixture A is added in slurries, be stirred 5~7min to mixture A be uniformly dispersed to get.
Wherein, the method for IPN composite setting phase-change material is referring in particular in the embodiment one of Chinese patent CN102061148
The method.
Embodiment 4
A kind of phase-change energy-storage temperature adjustment mortar, including following composition:
Wherein, the molecular weight of the polyethylene glycol in IPN composite setting phase-change material is 2000~10000, polypropylene fibre
Length be 4mm, the fineness of calcium powder is 200~400 mesh, the viscosity of hydroxypropyl methyl cellulose ether be 40000PaS~
60000Pa·S。
Use the preparation method is as follows:
(1) IPN composite setting phase-change material is prepared；
(2) granularity, temperature and phase transformation enthalpy of resulting IPN composite setting phase-change material are screened, is then carried out
The particle size range of drying and crushing, screening is 0.2~0.6mm, and 29~56 DEG C of transition temperature range, phase transformation enthalpy is in 85~130J/
g；
(3) IPN composite setting phase-change material, adjuvant (hydrophober, cellulose ether and polypropylene are weighed according to formulation content
Fiber) and solid powder carry out premixing 10~15 minutes, obtain mixture A, the lotion of formulation content stirred to get into slurries；
(4) obtained mixture A material is added in slurries, is stirred 5~7min to mixture A and is uniformly dispersed, i.e.,
?.
Wherein, the method for IPN composite setting phase-change material is referring in particular in the embodiment one of Chinese patent CN102061148
The method.
Embodiment 5
A kind of phase-change energy-storage temperature adjustment mortar, including following composition:
Wherein, the molecular weight of the polyethylene glycol in IPN composite setting phase-change material is 2000~10000, polypropylene fibre
Length be 3mm, the fineness of calcium powder is 200~400 mesh, the viscosity of hydroxypropyl methyl cellulose ether be 40000PaS~
60000Pa·S。
Use the preparation method is as follows:
(1) IPN composite setting phase-change material is prepared；
(2) granularity, temperature and phase transformation enthalpy of resulting IPN composite setting phase-change material are screened, is then carried out
The particle size range of drying and crushing, screening is 0.2~0.6mm, and 29~56 DEG C of transition temperature range, phase transformation enthalpy is in 85~130J/
g；
(3) IPN composite setting phase-change material, adjuvant (hydrophober, cellulose ether and polypropylene are weighed according to formulation content
Fiber) and solid powder carry out premixing 10~15 minutes, obtain mixture A, the lotion of formulation content stirred to get into slurries；
(4) obtained mixture A is added in slurries, be stirred 5~7min to mixture A be uniformly dispersed to get.
Wherein, the method for IPN composite setting phase-change material is referring in particular in the embodiment one of Chinese patent CN102061148
The method.
Comparative example 1
Referring to the slurry component of the embodiment of the present invention 1, only IPN composite setting phase-change material therein is changed to
Composite setting phase-change material PCM1 in the embodiment 1 of CN201210578891.X, the dosage of other components and each component
Implement 1 with the present invention to be consistent, prepares mortar according to step (3)-(4) in the embodiment of the present invention 1.
It according to single factors Controlling principle during comparative experiments, and is in identical item to the investigation of the property of mortar
It is carried out under part.
By the embodiment of the present invention 1, comparative example 1 distinguish resulting mortar same material, area metope on smear, prevent
It is observed after same time, the area of the mortar cracking of discovery comparative example 1 is larger, and the mortar of the embodiment of the present invention 1 is then several
Without discovery cracking.
Inventor carries out multiple repetition test, and resulting conclusion is identical, it can be seen that the present invention is compound fixed by the IPN
Type phase-change material is used to prepare mortar and efficiently solves the problems, such as that mortar cracks, and improves the performance for building of mortar.
Comparative example 2
Comparative example 2-1 is formed referring to the mortar of the embodiment of the present invention 2, IPN composite setting phase-change material is changed to existing
The common phase-change material paraffin of technology, other compositions and preparation method are consistent；
Comparative example 2-2 is formed referring to the mortar of the embodiment of the present invention 3, IPN composite setting phase-change material is changed to existing
The common phase-change material polyethylene glycol of technology, other compositions and preparation method are consistent.
The poor compatibility between phase-change material and inorganic gel materials in the above-mentioned resulting mortar of comparative example, phase-change material
It is easily revealed when with mortar physical blending, it is difficult to apply.
Inventor carries out multiple repetition test, and resulting conclusion is identical.
Therefore, if not using IPN composite setting phase-change material of the present invention, phase-change material and sand can not be solved
Leakage, incompatible problem when starching physical blending.
The functional test of 1 phase-change energy-storage temperature adjustment mortar of test example
(1) phase-change energy-storage temperature adjustment mortar and ordinary mortar are uniformly coated on cement fibrolite plate (size 30cm* respectively
On lower surface 20cm*0.5cm), enabling the thickness of phase-change energy-storage temperature adjustment mortar and ordinary mortar is 1cm, in cement fibrolite plate
Upper surface coat one layer of water-repellent paint.
It is that heat source and data logger (0.5 DEG C of thermocouple measurement accuracy) are built into heating and thermometric system using recirculated water
System, the accumulation of heat that wherein data record chooses that the temperature variations within the scope of (25 ± 3)~(60 ± 3) DEG C are cement fibrolite plate are protected
Thermal storage and energy accumulation mortar is prepared into thermal storage and energy accumulation cement plate by warm performance characterization range.
By the formula of example 1,3 prepared IPN phase-change energy-storage temperature adjustment mortar and ordinary mortar using recirculated water as heat source
In the case of, heating rate be significantly lower than ordinary mortar heating rate, heat 107min, phase transition mortar lower than ordinary mortar 2.3,
2.4 DEG C, as shown in Fig. 4,6；Prepared IPN phase-change energy-storage temperature adjustment mortar and ordinary mortar are formulated with recirculated water by example 1
In the case where heat source, heating rate is significantly lower than the heating rate of ordinary mortar, heats 107min, phase transition mortar is lower than common
3.1 DEG C of mortar, as shown in figure 5, i.e. IPN phase-change energy-storage temperature adjustment mortar embodies preferable heat insulation effect in practical applications.
(2) hot property characterization is carried out to sample using differential scanning calorimeter.
The IPN phase-change energy-storage temperature adjustment mortar for weighing 3~5mg embodiment 1, embodiment 2 and embodiment 3 respectively is sealed in standard
In crucible, 90 DEG C are warming up to from 0 DEG C with the rate of 5 DEG C/min under the protection of nitrogen, then be cooled to 0 DEG C with same rate, with
Same rate secondary temperature elevation is to 90 DEG C, record cooling and secondary temperature elevation scanning curve (DSC curve).
The testing result of the IPN phase-change energy-storage temperature adjustment mortar of embodiment 1, embodiment 2 and embodiment 3 as shown in Figure 1, Figure 2, Fig. 3
It is shown.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of phase-change energy-storage temperature adjustment mortar, which is characterized in that include macromolecule interpenetrating in the phase-change energy-storage temperature adjustment mortar
Network combined sizing phase-change material, the macromolecule interpenetrating networks composite setting phase-change material are dispersed in the phase transformation
In energy-saving and temperature-regulating mortar.
2. phase-change energy-storage temperature adjustment mortar according to claim 1, which is characterized in that the macromolecule interpenetrating networks are compound
Sizing phase-change material includes at least two polymer network structures being intertwined, and hole is distributed in polymer network structure
Structure.
3. phase-change energy-storage temperature adjustment mortar according to claim 2, which is characterized in that the macromolecule interpenetrating networks are compound
Sizing phase-change material has the first network structure formed by poly- N hydroxymethyl acrylamide, the second net formed by polyethylene glycol
Network structure, the second network structure are bound by the inside of first network structure.
4. phase-change energy-storage temperature adjustment mortar according to claim 1 or 2 or 3, which is characterized in that macromolecule interpenetrating networks are compound
18~60 DEG C of the transition temperature range of sizing phase-change material, phase transformation enthalpy is in 70~150J/g；
Preferably, the particle size range of macromolecule interpenetrating networks composite setting phase-change material is 0.07~0.7mm.
5. phase-change energy-storage temperature adjustment mortar according to claim 4, which is characterized in that the macromolecule interpenetrating networks are compound
The content of sizing phase-change material accounts for 1~35wt% of the phase-change energy-storage temperature adjustment mortar.
6. according to phase-change energy-storage temperature adjustment mortar described in claim 3 or 4 or 5, which is characterized in that the phase-change energy-storage temperature adjustment
It further include one or more of lotions selected from styrene-acrylic emulsion, vinegar third or pure-acrylic emulsion, lotion and the second network structure in mortar
The hydroxyl of polyethylene glycol backbone interact and form package.
7. a kind of substrate, which is characterized in that have phase-change energy-storage temperature adjustment mortar as claimed in any one of claims 1 to 6.
8. a kind of preparation method of phase-change energy-storage temperature adjustment mortar as claimed in any one of claims 1 to 6, which is characterized in that including
The following steps:
(1) macromolecule interpenetrating networks composite setting phase-change material is prepared；
(2) granularity, temperature and the phase transformation enthalpy of resulting macromolecule interpenetrating networks composite setting phase-change material are screened, so
After carry out drying and crushing；
(3) macromolecule interpenetrating networks composite setting phase-change material, adjuvant and solid powder is weighed according to formulation content to carry out in advance
Mixing, obtains mixture A, the lotion of formulation content is stirred to get slurries；
(4) obtained mixture A is added in slurries, be stirred to mixture A be uniformly dispersed to get.
9. the preparation method of phase-change energy-storage temperature adjustment mortar according to claim 8, which is characterized in that step (2) sieve
The particle size range of choosing is 0.07~0.7mm, and 18~60 DEG C of transition temperature range, phase transformation enthalpy is in 70~150J/g.
10. a kind of use for preparing temperature regulating building material using phase-change energy-storage temperature adjustment mortar as claimed in any one of claims 1 to 6
On the way.
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