CN107365121A - Compound phase transformation putty of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application - Google Patents
Compound phase transformation putty of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application Download PDFInfo
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- CN107365121A CN107365121A CN201710686052.2A CN201710686052A CN107365121A CN 107365121 A CN107365121 A CN 107365121A CN 201710686052 A CN201710686052 A CN 201710686052A CN 107365121 A CN107365121 A CN 107365121A
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- inorganic material
- change microcapsule
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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
- C04B28/04—Portland 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0071—Phase-change materials, e.g. latent heat storage materials used in concrete compositions
Abstract
The invention discloses compound phase transformation putty of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application.The compound phase transformation putty of the phase-change microcapsule of the inorganic material coating includes the phase-change microcapsule and calcium-magnesium powder, portland cement, sierozem power, additive of inorganic material coating；Inorganic material itself is non-combustible used in the phase-change microcapsule of the inorganic material coating, therefore the phase-change microcapsule that the phase-change microcapsule of inorganic material coating compares organic material cladding has more preferable security performance.While the compound phase transformation putty of the phase-change microcapsule of the inorganic material coating that the present invention is prepared retains the performance of original putty, regulation indoor temperature is also equipped with, the characteristics of reducing fluctuations in indoor temperature and reduce energy consumption.The preparation process is green, and preparation of industrialization is easily achieved, and process costs are reduced.The phase transformation putty for interior wall house indoor temperature control at 2~4 DEG C, there is good heat insulation effect.
Description
Technical field
The invention belongs to phase-change material technical field, more particularly to a kind of phase-change microcapsule of inorganic material coating are compound
Phase transformation putty and its preparation method and application.
Background technology
In recent years, the shortage problem of the energy annoyings us always, in face of the increasingly exhausted of non-renewable energy resources, how
Enough service efficiencies for improving the energy to greatest extent, are always study hotspot in recent years.Phase-change material is new to we provide
Energy storage heat accumulation thinking.Under different temperature conditionss, by the transformation of thing phase, so as to realize energy storage and temperature control work(
The material of energy is referred to as phase change material or phase-change material, because it has good energy storage and temperature control ability, turns into section in recent years
It can apply, the study hotspot in the field such as system temperature control.Phase-change material absorbs heat when temperature is higher than transformation temperature and undergone phase transition
(thermal energy storage process), conversely when temperature declines, reverse phase transformation (exergonic process) occurs during less than transformation temperature.This phase using material
Change process is referred to as hidden heat energy storage to carry out the mode of energy storage.
The microencapsulation of phase-change material has become study hotspot in recent years, different according to the wall material of cladding, phase transformation material
Material can be divided into two kinds of organic wall material phase-change material and inorganic wall material phase-change material.
Organic wall material majority is based on amino resins and its material modified system, and it generally has preferably cladding effect
Fruit, but it is most with combustibility, and substantial amounts of volatilizable organic matter is remained in the phase-change material coated
(such as：Formaldehyde, residual monomer etc.), this just brings many potential safety hazards to the practical application of phase-change material.
Compared with organic wall material, inorganic wall material can not burn, and have more preferable security performance；In addition, inorganic material coating
Phase-change material have the advantages that phase transition temperature is constant, energy storage density is big, thermal conductivity is high.Therefore, the phase transformation of inorganic material coating
Microcapsules have more preferable application prospect in terms of energy saving building material.But in terms of production capacity, it is prepared on a large scale inorganic material coating
Phase-change microcapsule remain difficult to realize；Moreover, the phase-change microcapsule of the inorganic material coating of existing report, its phase transformation material coated
The amount for the phase-change material that the amount of material coats in the phase-change microcapsule far below organic material cladding；These defects are serious to be limited
Its application in actual production.
The content of the invention
In order to solve the deficiencies in the prior art, it is an object of the invention to provide a kind of micro- glue of the phase transformation of inorganic material coating
Compound phase transformation putty of capsule and its preparation method and application.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of compound phase transformation putty of phase-change microcapsule of inorganic material coating, the phase transformation putty include inorganic material bag
Phase-change microcapsule, calcium-magnesium powder, portland cement, sierozem power and the additive covered；The phase-change microcapsule includes core and wall material；
The core includes phase-change material, and the wall material is inorganic material；The enthalpy of the phase-change microcapsule of the inorganic material coating is protected
It is 20~99% to have rate；The average grain diameter of the phase-change microcapsule is 0.1~100 micron.
According to the present invention, the phase transformation putty includes the composition of following constituent content：
Wherein, each component sum is 100% in composition.
Preferably, the phase transformation putty includes the composition of following constituent content：
Wherein, each component sum is 100% in composition.
Preferably, the enthalpy retention of the phase-change microcapsule of the inorganic material coating is 75%~99%.
It is further preferred that the enthalpy retention of the phase-change microcapsule of the inorganic material coating is 75%~95%.
It is highly preferred that the enthalpy retention of the phase-change microcapsule of the inorganic material coating is 80%~93%.
Preferably, the average grain diameter of the phase-change microcapsule of the inorganic material coating is 1~10 micron.
It is further preferred that the average grain diameter of the phase-change microcapsule of the inorganic material coating is 2~5 microns.
In the present invention, enthalpy retention and clad ratio and the core content of the phase-change microcapsule of described inorganic material coating
Unanimously, can be calculated by melting enthalpy or crystallization enthalpy, computational methods are as follows：
Enthalpy retention=clad ratio=core content=Δ Hm/ΔHm0× 100%；
Wall material content=100%- core contents；
Wherein, Δ Hm0For the transformation temperature enthalpy of the core of phase-change microcapsule, Δ HmFor the transformation temperature enthalpy of phase-change microcapsule.
According to the present invention, the phase-change material is solid-liquid phase change material, such as including alcohol compound, organic acid
At least one of compound, ester type compound, alkane derivative.
Preferably, the alcohol compound is selected from glycerine, erythrol, lauryl alcohol, tetradecyl alchohol, hexadecanol, erythritol
At least one of.
Preferably, the organic acid compound be selected from octanoic acid, capric acid, lauric acid/dodecanoic acid, tetradecylic acid, hexadecylic acid, octadecanoid acid,
At least one of laurate, myristic acid, palmitic acid, stearic acid.
Preferably, the ester type compound is selected from least one of laurate cellulose esters, cetyl stearic.
Preferably, the alkane derivative is selected from paraffin (14~80 DEG C of fusing point), aromatic hydrocarbon, aliphatic hydrocarbon (carbon number
At least one of for 8~100).
According to the present invention, the inorganic material includes SiO2、TiO2、SnO2、ZrO2And Al2O3At least one of.
According to the present invention, the phase transition temperature of the phase-change microcapsule of the inorganic material coating is 14~52 DEG C；Preferably
20~40 DEG C.
According to the present invention, the latent heat of phase change of the phase-change microcapsule of the inorganic material coating is 30J/g~240J/g, preferably
Ground is 100J/g~230J/g, further preferably 110J/g~220J/g.
According to the present invention, calcium carbonate content in the calcium-magnesium powder is 25%~35%, carbonic acid content of magnesium is 15%~
20%.
According to the present invention, the portland cement is selected from Portland cement, portland slag cement, flyash silicic acid
At least one of salt cement, portland-pozzolan cement, composite Portland cement.
According to the present invention, the sierozem power is selected from commercially available general sierozem power.
According to the present invention, the additive is selected from least one of defoamer, cellulose ether.
According to the present invention, the cellulose ether is selected from methyl cellulose ether, ethoxyl methyl cellulose ether, carboxymethyl cellulose
Plain ether, cellulose ether, benzylcellulose ether, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether, cyanethyl cellulose
At least one of ether, benzyl cyanide cellulose ether, carboxymethyl hydroxyethyl cellulose ether and benzyl cellulose ether.
According to the present invention, the defoamer is selected from polyethers defoamer, and (such as GP types glycerin polyether, GPE type polyoxyethylene gathers
Oxypropylene glycerin ether etc.), alcohol defoaming agent, at least one of organic silicon defoamer.
According to the present invention, the phase transformation putty that the phase-change microcapsule of the inorganic material coating is compound has the property for saving energy storage
Can, its latent heat of phase change is 1~150J/g, preferably 20~50J/g.
The present invention also provides the preparation method of the compound phase transformation putty of phase-change microcapsule of above-mentioned inorganic material coating, described
Preparation method comprises the following steps：
By the phase-change microcapsule of the inorganic material coating in phase transformation putty, calcium-magnesium powder, portland cement, sierozem power and additional
Agent is well mixed, and the compound phase transformation putty of the phase-change microcapsule of the inorganic material coating is prepared.
The present invention also provides the application of the compound phase transformation putty of phase-change microcapsule of above-mentioned inorganic material coating, and it can be used
In the fields such as construction material, handicraft.
Preferably, the phase transformation putty can be used for ceiling, wall, may also be fabricated which handicraft.
Beneficial effects of the present invention：
The invention provides compound phase transformation putty of a kind of phase-change microcapsule of inorganic material coating and preparation method thereof and
Using.The compound phase transformation putty of the phase-change microcapsule of the inorganic material coating include inorganic material coating phase-change microcapsule and
Calcium-magnesium powder, portland cement, sierozem power, additive；The phase-change microcapsule includes core and wall material；The core includes phase transformation
Material, the wall material are inorganic material；The enthalpy retention of the phase-change microcapsule of the inorganic material coating is 20~99%；Institute
The average grain diameter for stating phase-change microcapsule is 0.1~100 micron；It is inorganic used in the phase-change microcapsule of the inorganic material coating
Material itself is non-combustible, therefore the phase-change microcapsule that the phase-change microcapsule of inorganic material coating compares organic material cladding has more
Good security performance.The phase transformation putty that the phase-change microcapsule for the inorganic material coating that the present invention is prepared is compound retains original
While having the performance of putty, regulation indoor temperature is also equipped with, the characteristics of reducing fluctuations in indoor temperature and reduce energy consumption.Institute
It is green to state preparation process, preparation of industrialization is easily achieved, and process costs are reduced.The phase transformation putty is the room of interior wall
Temperature control has good heat insulation effect at 2~4 DEG C in room.
Embodiment
As it was previously stated, the invention provides a kind of compound phase transformation putty of phase-change microcapsule of inorganic material coating, it is described
Phase transformation putty includes the phase-change microcapsule and calcium-magnesium powder, portland cement, sierozem power, additive of inorganic material coating；The phase
Becoming microcapsules includes core and wall material；The core includes phase-change material, and the wall material is inorganic material；The inorganic material bag
The enthalpy retention of the phase-change microcapsule covered is 20~99%；The average grain diameter of the phase-change microcapsule is 0.1~100 micron.
In the present invention, the preparation method of the phase-change microcapsule of the inorganic material coating comprises the following steps：
1) dispersed phase is prepared, including inorganic matter precursors are scattered in the phase-change material of melting；
2) continuous phase is prepared, including emulsifying agent is dissolved in polar solvent；
3) dispersed phase that step 1) is prepared is scattered in the continuous phase that step 2) is prepared, in the work of emulsifying agent
Under, emulsion is formed by emulsification；
4) emulsion that step 3) is prepared is subjected to interfacial reaction under normal temperature or heating condition, the nothing is prepared
The phase-change microcapsule of machine material cladding.
Wherein, in step 1), the inorganic matter precursors include R1CnH2n-M1(R2)m(R3)3-mOr R1CnH2n-M2
(R2)p(R3)2-pAt least one of；Wherein, M1For Si, Ti, Sn or Zr, M2For Al；M, n and p is integer, 0≤n≤127, and 0
≤ m≤3,0≤p≤2；The R1Selected from H, fatty alkyl, phenyl, epoxy radicals ,-OCyH2y+1, vinyl, amino ,-CN ,-
NHCONH2、-Cl、-NH(CH2)2NH2, 2,3- glycidoxies, methacryloxy or sulfydryl；R2、R3It is identical or different, that
This is independently selected from-Cl ,-CH3、-OCH2Ph、-OCyH2y+1Or-OC2H4OCH3；- the OCyH2y+1In, y is whole between 1-20
Number.
Preferably, the inorganic matter precursors include titanate coupling agent, esters of silicon acis coupling agent, the coupling of stannic acid ester
At least one of agent, zirconium ester coupling agent, aluminate coupling agent.
It is highly preferred that the inorganic matter precursors include tetra-n-butyl titanate, tetraisopropyl titanate, positive silicic acid second
Ester, glycidyl trimethoxy silane, phenyl triethoxysilane, phenyltrimethoxysila,e, aminopropyl trimethoxysilane,
N-octytriethoxysilane, the butyl ester of stannic acid four, NW-2 stannic acid ester coupling agents, tetrabutyl zirconate, the isopropyl ester of aluminic acid three, aluminic acid three
At least one of benzyl ester.
In step 1), the inorganic material is selected from titanium dioxide, silica, zirconium dioxide, tin ash, alchlor
At least one of.
Preferably, the inorganic material is selected from least one of titanium dioxide, silica, alchlor.
In step 1), the phase-change material is solid-liquid phase change material, can include alcohol compound, organic acid chemical combination
At least one of thing, ester type compound, alkane derivative.
Preferably, the alcohol compound is selected from glycerine, erythrol, lauryl alcohol, tetradecyl alchohol, hexadecanol, erythritol
At least one of.
Preferably, the organic acid compound be selected from octanoic acid, capric acid, lauric acid/dodecanoic acid, tetradecylic acid, hexadecylic acid, octadecanoid acid,
At least one of laurate, myristic acid, palmitic acid, stearic acid.
Preferably, the ester type compound is selected from least one of laurate cellulose esters, cetyl stearic.
Preferably, the alkane derivative is selected from paraffin (14~80 DEG C of fusing point), aromatic hydrocarbon, aliphatic hydrocarbon (carbon number
At least one of for 8~100, such as n-octadecane).
In step 1), the mass ratio of the inorganic matter precursors and phase-change material is 1:0.1~100；Preferably 1:1
~50.
In step 2), to regulate and control the hydrolysis-condensation speed of inorganic matter precursors, the pH using sour or alkali to continuous phase
Value is adjusted, adjust pH to 1~14, preferably 2~12.
Preferably, there is no particular limitation with its concentration for the selection of described acid or alkali, suitable for of the present invention anti-
Answer system.As exemplary, for the acid selected from least one of hydrochloric acid, sulfuric acid and nitric acid, the alkali is selected from hydrogen-oxygen
Change at least one of sodium, potassium hydroxide and ammoniacal liquor.
In step 2), the emulsifying agent includes sodium salt hydrolysate, the isobutyl of vinyl methyl ether-maleic anhydride multipolymer
The sodium salt hydrolysate of alkene-copolymer-maleic anhydride, sodium salt hydrolysate, the ethylene-maleic acid of styrene-maleic anhydride copolymer
The sodium salt hydrolysate of copolymer, acrylic or methacrylic acid and styrene, ethene, vinyl alcohol, vinylacetate, metering system
Acid amides, isobutene, acrylate, methacrylate or copolymer, polyvinylbenzenesulfonic acid, poly- second obtained by acrylonitrile compolymer
Alkenyl benzene sulfonic acid sodium, polyoxyethylene nonylphenol ether -5, emulsifier op-10, polysorbas20 (Tween20), polysorbate60 (Tween60), Tween 80
(Tween80), Triton X-100 X-100 (Triton X-100), lauryl sodium sulfate, dodecyl sodium sulfonate
At least one of sodium, neopelex, CTAB and amber sodium dioctyl sulfo.
In step 2), described polar solvent includes water, methanol, ethylene glycol, propane diols, glycerine, tetrahydrofuran, N, N-
At least one of dimethylformamide.
In step 3), the volume ratio of the dispersed phase and continuous phase is 1:1~100；Preferably 1:1~50.
In step 3), the dosage of the emulsifying agent is 0.5~30%, preferably the 1~20% of quality of the emulsion.
In step 3), high speed shearing emulsification or ultrasonic emulsification can be selected in the emulsification；The high speed shearing emulsification
Shear rate is in the range of 1000 revs/min~25000 revs/min, and shear time is in the range of 0.5 minute~30 minutes；Institute
Ultrasonic frequency when stating ultrasonic emulsification is in the range of 1000Hz~40000Hz, and the time of ultrasonic emulsification is 10 minutes~60
In the range of minute.
In step 4), the reaction temperature of the interfacial reaction is 20-90 DEG C, and the time of reaction is 0.5-72 hours.
Methods described still further comprises post-processing step, and the post processing specifically includes：Inorganic material coating will be mixed with
Phase-change microcapsule mixed system solid product is obtained by the method for centrifuging or filtering, washing, dry, that is, be prepared described
The phase-change microcapsule of inorganic material coating.
Preferably, when selecting centrifugal method to obtain solid product, the centrifugal speed is 3000~15000rpm, centrifugation
Time is 2~30 minutes；When selecting suction filtration method to obtain solid product, the suction filtration filter paper aperture is 50~500 μm.
Methods described specifically comprises the following steps：
A) inorganic matter precursors are distributed in the solid-liquid phase change material of melting, obtain uniform dispersion, will
The dispersion is as dispersed phase；
B) emulsifying agent is added to the water, and is disperseed to obtain uniform dispersion, using the dispersion as company
Continuous phase, meanwhile, utilize acid or the pH of alkali regulation continuous phase；
C) mixed by above-mentioned dispersed phase and continuously, in the presence of emulsifying agent, emulsion is formed by emulsification；
D) interfacial reaction is carried out under normal temperature or heating condition, obtains the phase-change microcapsule of inorganic wall material cladding；
E) the phase-change microcapsule dry powder by separating, washing, be dried to obtain the inorganic wall material cladding.
In the present invention, described phase-change microcapsule of inorganic material coating and preparation method thereof, carried on the same day referring to applicant
The patent of invention of the patent application entitled " a kind of phase-change microcapsule of inorganic material coating and its preparation method and application " of friendship, this
Place is fully incorporated as present disclosure.
In the present invention, the addition of the phase-change microcapsule of the inorganic material coating, make such a common building materials of putty
The performance of phase-change accumulation energy is imparted, it is achieved thereby that the purpose of building energy conservation.Further, due to having used inorganic wall material to phase
Become material to be coated so that while phase transformation putty realizes energy-conservation energy storage purpose, security performance is improved.
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.Furthermore, it is to be understood that after described content of the invention has been read, this area skill
Art personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within limited range of the present invention.
Embodiment 1
(1) preparation of the phase-change microcapsule of inorganic material coating
10g butyl titanates, 2g aminopropyl trimethoxysilanes and 1g phenyltrimethoxysila,es is taken to be added to 30g positive ten
In eight alkane, oil phase is used as after being sufficiently mixed.Take 2.5g lauryl sodium sulfate to be added in 50g water, as aqueous phase, be using concentration
2mol/L hydrochloric acid adjusts aqueous phase pH to 2.5.By oil/water two-phase mixtures, emulsified using ultrasound, emulsification times 30min, will
Resulting emulsion is transferred in there-necked flask, and lower 70 DEG C of mechanical agitation is reacted 12 hours.By separating, washing and further
It is dried to obtain phase-change microcapsule dry powder.
The phase transition temperature of the phase-change microcapsule of the inorganic material coating being prepared is 25.05 DEG C, and latent heat of phase change is
124J/g。
(2) preparation of phase transformation putty
Each component is weighed according to following proportioning：
Above-mentioned raw materials are added in batch mixer, after mixing by constant weight pack product.
The performance test results of the phase transformation putty are listed in Table 2 below.
Embodiment 2-4
(1) preparation of the phase-change microcapsule of inorganic material coating
With embodiment 1.
(2) preparation of phase transformation putty
With embodiment 1, it is different to differ only in the constituent content of the phase transformation putty, the constituent content of the phase transformation putty
It is listed in Table 1 below, the performance test results of the phase transformation putty are listed in Table 2 below.
Embodiment 5
(1) preparation of the phase-change microcapsule of inorganic material coating
5g tetraethyl orthosilicates, 1g phenyltrimethoxysila,es is taken to be added in 15g hexadecanes, as oil after being sufficiently mixed
Phase.Take 0.5g tween 80 to be added in 50g water, be that 2mol/L hydrochloric acid adjusts aqueous phase pH to 4.0 using concentration as aqueous phase.
By oil/water two-phase mixtures, emulsified using ultrasound, emulsification times 30min, resulting emulsion is transferred to there-necked flask
In, lower 70 DEG C of mechanical agitation is reacted 12 hours.By separating, washing and being further dried to obtain phase-change microcapsule dry powder.
The phase transition temperature of the phase-change microcapsule of the inorganic material coating being prepared is 20.05 DEG C, and latent heat of phase change is
137J/g。
(2) preparation of phase transformation putty
Each component is weighed according to following proportioning：
Above-mentioned raw materials are added in batch mixer, after mixing by constant weight pack product.
The performance test results of the phase transformation putty are listed in Table 2 below.
Embodiment 6-8
(1) preparation of the phase-change microcapsule of inorganic material coating
With embodiment 5.
(2) preparation of phase transformation putty
With embodiment 5, it is different to differ only in the constituent content of the phase transformation putty, the constituent content of the phase transformation putty
It is listed in Table 1 below, the performance test results of the phase transformation putty are listed in Table 2 below.
Table 1 is the constituent content of embodiment 1-8 phase transformation putty
| Calcium-magnesium powder | Portland cement | Sierozem power | Phase-change microcapsule | Additive | |
| Embodiment 1 | 50 | 20 | 20 | 5 | 5 |
| Embodiment 2 | 60 | 15 | 15 | 5 | 5 |
| Embodiment 3 | 50 | 15 | 20 | 10 | 5 |
| Embodiment 4 | 50 | 15 | 15 | 15 | 5 |
| Embodiment 5 | 60 | 10 | 20 | 5 | 5 |
| Embodiment 6 | 50 | 20 | 20 | 5 | 5 |
| Embodiment 7 | 50 | 15 | 20 | 10 | 5 |
| Embodiment 8 | 50 | 15 | 15 | 15 | 5 |
Table 2 is the performance test results of embodiment 1-8 phase transformation putty
| Latent heat of phase change/Jg-1 | |
| Embodiment 1 | 31.1 |
| Embodiment 2 | 30.5 |
| Embodiment 3 | 42.7 |
| Embodiment 4 | 50.2 |
| Embodiment 5 | 30.4 |
| Embodiment 6 | 29.9 |
| Embodiment 7 | 40.6 |
| Embodiment 8 | 49.6 |
From Tables 1 and 2 result, the addition of the phase-change microcapsule of inorganic material coating and the phase transformation being prepared are greasy
There is corresponding relation in the latent heat of phase change of son, within the specific limits, with the raising of microcapsules addition, the phase transformation of phase transformation putty is dived
Heat is in rising trend.Its reason has high enthalpy retention mainly due to the phase-change microcapsule of the inorganic material coating, and
The maximum feature of the high enthalpy retention is to keep the phase of phase-change material to greatest extent while material microcapsule is ensured
Become enthalpy, this phase transformation building materials for also to be prepared has higher energy storage effect.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above-mentioned embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. the compound phase transformation putty of a kind of phase-change microcapsule of inorganic material coating, it is characterised in that the phase transformation putty includes
Phase-change microcapsule, calcium-magnesium powder, portland cement, sierozem power and the additive of inorganic material coating；The phase-change microcapsule includes
Core and wall material；The core includes phase-change material, and the wall material is inorganic material；The micro- glue of phase transformation of the inorganic material coating
The enthalpy retention of capsule is 20~99%；The average grain diameter of the phase-change microcapsule is 0.1~100 micron.
2. phase transformation putty according to claim 1, it is characterised in that the phase transformation putty includes the group of following constituent content
Compound：
Wherein, each component sum is 100% in composition.
3. phase transformation putty according to claim 1 or 2, it is characterised in that the phase transformation putty includes following constituent content
Composition：
Wherein, each component sum is 100% in composition.
4. the phase transformation putty according to claim 1-3, it is characterised in that the phase-change microcapsule of the inorganic material coating
Enthalpy retention is 75%~99%.
Preferably, the enthalpy retention of the phase-change microcapsule of the inorganic material coating is 75%~95%.
Preferably, the enthalpy retention of the phase-change microcapsule of the inorganic material coating is 80%~93%.
Preferably, the average grain diameter of the phase-change microcapsule of the inorganic material coating is 1~10 micron.
Preferably, the average grain diameter of the phase-change microcapsule of the inorganic material coating is 2~5 microns.
5. the phase transformation putty according to claim 1-4, it is characterised in that the phase-change material is solid-liquid phase change material, example
Such as include at least one of alcohol compound, organic acid compound, ester type compound, alkane derivative.
Preferably, the alcohol compound is selected from glycerine, erythrol, lauryl alcohol, tetradecyl alchohol, hexadecanol, in erythritol
It is at least one.
Preferably, the organic acid compound is selected from octanoic acid, capric acid, lauric acid/dodecanoic acid, tetradecylic acid, hexadecylic acid, octadecanoid acid, bay
At least one of acid, myristic acid, palmitic acid, stearic acid.
Preferably, the ester type compound is selected from least one of laurate cellulose esters, cetyl stearic.
Preferably, the alkane derivative be selected from paraffin (14~80 DEG C of fusing point), aromatic hydrocarbon, aliphatic hydrocarbon (carbon number be 8~
At least one of 100).
6. the phase transformation putty according to claim 1-5, it is characterised in that the inorganic material includes SiO2、TiO2、SnO2、
ZrO2And Al2O3At least one of.
Preferably, the phase transition temperature of the phase-change microcapsule of the inorganic material coating is 14~52 DEG C；Preferably 20~40 DEG C.
Preferably, the latent heat of phase change of the phase-change microcapsule of the inorganic material coating is 30J/g~240J/g, it is therefore preferable to
100J/g~230J/g, further preferably 110J/g~220J/g.
7. the phase transformation putty according to claim 1-6, it is characterised in that the calcium carbonate content in the calcium-magnesium powder is 25%
~35%, carbonic acid content of magnesium is 15%~20%.
Preferably, the portland cement be selected from Portland cement, portland slag cement, Portland fly ash cement,
At least one of portland-pozzolan cement, composite Portland cement.
8. the phase transformation putty according to claim 1-7, it is characterised in that the additive is selected from defoamer, cellulose ether
At least one of.
Preferably, the cellulose ether is selected from methyl cellulose ether, ethoxyl methyl cellulose ether, TYLOSE 30000, second
Base cellulose ether, benzylcellulose ether, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether, cyanethyl cellulose ether, benzyl
At least one of cyanethyl cellulose ether, carboxymethyl hydroxyethyl cellulose ether and benzyl cellulose ether.
Preferably, (such as GP types glycerin polyether, GPE type polyoxyethylene polyoxypropylenes is sweet selected from polyethers defoamer for the defoamer
Oily ether etc.), alcohol defoaming agent, at least one of organic silicon defoamer.
Preferably, the compound phase transformation putty of the phase-change microcapsule of the inorganic material coating has the performance of energy-conservation energy storage, its phase
Change latent heat is 1~150J/g, preferably 20~50J/g.
9. the preparation method of the compound phase transformation putty of the phase-change microcapsule of the inorganic material coating described in claim 1-8, it is special
Sign is that the preparation method comprises the following steps：By the phase-change microcapsule of the inorganic material coating in phase transformation putty, calcium and magnesium
Powder, portland cement, sierozem power and additive are well mixed, and the phase-change microcapsule that the inorganic material coating is prepared is compound
Phase transformation putty.
10. the phase-change microcapsule of inorganic material coating according to claim 1-8 or that claim 9 is prepared is compound
Phase transformation putty application, it is used in construction material, handicraft field.
Preferably, the phase transformation putty is used for ceiling, wall, or preparing handicraft article.
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| CN108484024A (en) * | 2018-03-09 | 2018-09-04 | 湖北工业大学 | A kind of preparation method of the early strong frost-resistant concrete of the micro-nano heat accumulation capsule of addition |
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| US10626238B2 (en) * | 2018-07-27 | 2020-04-21 | King Fahd University Of Petroleum And Minerals | Calcium-doped magnesium carbonate-polymer-based synergistic phase change composite |
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| CN109370292A (en) * | 2018-12-12 | 2019-02-22 | 河北晨阳工贸集团有限公司 | A kind of phase transformation exterior wall putty and preparation method thereof |
| US11332650B2 (en) * | 2019-11-15 | 2022-05-17 | King Fahd University Of Petroleum And Minerals | Shape-stabilized phase change materials for energy storage based on hierarchically porous calcium magnesium carbonate |
| CN113174157B (en) * | 2020-05-09 | 2022-04-22 | 中国科学院青海盐湖研究所 | Wall surface phase change putty and preparation method thereof |
| CN113174157A (en) * | 2020-05-09 | 2021-07-27 | 中国科学院青海盐湖研究所 | Wall surface phase change putty and preparation method thereof |
| CN113979695A (en) * | 2021-11-24 | 2022-01-28 | 许华 | Heat-storage temperature-regulating concrete and preparation method thereof |
| CN114560665A (en) * | 2022-04-07 | 2022-05-31 | 武汉质高环保科技有限公司 | Phase-change thermal-insulation facing mortar for building interior wall and preparation method thereof |
| CN114560665B (en) * | 2022-04-07 | 2023-08-11 | 武汉质高环保科技有限公司 | Phase-change thermal-insulation facing mortar for building inner wall and preparation method thereof |
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