CN107964297A - Compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application - Google Patents
Compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application Download PDFInfo
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- CN107964297A CN107964297A CN201710686048.6A CN201710686048A CN107964297A CN 107964297 A CN107964297 A CN 107964297A CN 201710686048 A CN201710686048 A CN 201710686048A CN 107964297 A CN107964297 A CN 107964297A
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/01—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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Abstract
The invention discloses compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application.The compound phase-change coating of the phase-change microcapsule of the inorganic material coating includes phase-change microcapsule, water and the elastic emulsion of inorganic material coating；The enthalpy retention of the phase-change microcapsule of the inorganic material coating is 20~99%；The average grain diameter of the phase-change microcapsule is 0.1~100 micron；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.The phase-change coating that the phase-change microcapsule of the inorganic material coating is compound can not only play protection, the function of decoration; regulation and control indoor temperature can also be realized by accumulation of heat; it is small for the house indoor temperature fluctuation coated with interior wall coating, energy consumption is reduced, makes it have 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-change coating 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 research 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 fulfill energy storage and temperature control work(
The material of energy is referred to as phase change material or phase-change material, since it is with good energy storage and temperature control ability, becomes section in recent years
It can apply, the research hotspot in the field such as system temperature control.Phase-change material absorbs heat when temperature is higher than transformation temperature and undergoes phase transition
(thermal energy storage process), conversely when the temperature drops, reverse phase transformation (exergonic process) occurs when being less than transformation temperature.This phase using material
Change process is known as hidden heat energy storage to carry out the mode of energy storage.
The microencapsulation of phase-change material has become research 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 modified material system, it usually has preferable 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 security risks to the practical application of phase-change material.
Compared with organic wall material, inorganic wall material cannot 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-change coating 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-change coating of phase-change microcapsule of inorganic material coating；The phase-change coating includes inorganic material bag
Phase-change microcapsule, elastic emulsion and the water covered；The phase-change microcapsule includes core and wall material；The core includes phase transformation material
Material, the wall material is inorganic material；The enthalpy retention of the phase-change microcapsule of the inorganic material coating is 20~99%；It is described
The average grain diameter of phase-change microcapsule is 0.1~100 micron.
According to the present invention, the phase-change coating can also include one kind in dispersant, wetting agent, thickener, preservative
It is or a variety of.
According to the present invention, the phase-change coating includes the composition of following constituent content：
Wherein, the sum of each component is 100% in composition.
Preferably, the phase-change coating includes the composition of following constituent content：
Wherein, the sum of each component is 100% in composition.
Preferably, the enthalpy retention of the phase-change microcapsule of the inorganic material coating 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.
In the present invention, enthalpy retention and clad ratio and the core content of the phase-change microcapsule of the 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, the elastic emulsion is selected from Pure acrylic ester elastic emulsion (such as TgAcrylate less than -20 DEG C
At least one of elastic emulsion) and organic silicon acrylic ester elastic emulsion.
It is described the present invention also provides the preparation method of the compound phase-change coating of the phase-change microcapsule of above-mentioned inorganic material coating
Method includes the following steps：
(1) under high velocity agitation, Jiang Shui and optionally thickener, wetting agent, dispersant, preservative are uniformly mixed；Obtain
Mixed system；
(2) under stirring at low speed, phase-change microcapsule, the elasticity breast of inorganic material coating are added into above-mentioned mixed system
Liquid, is prepared the compound phase-change coating of the phase-change microcapsule of the inorganic material coating after stirring evenly.
According to the present invention, in step (1), the revolution of the high-speed stirred is 2000rpm~5000rpm.
According to the present invention, in step (2), the revolution of the stirring at low speed is 200rpm~400rpm.
The present invention also provides the application of the compound phase-change coating of the phase-change microcapsule of above-mentioned inorganic material coating, it can be used
In the fields such as construction material, handicraft.
Preferably, the phase-change coating can be used for ceiling, wall, may also be fabricated which craftwork.
Beneficial effects of the present invention：
The present invention provides compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and preparation method thereof and
Using.The compound phase-change coating of the phase-change microcapsule of the inorganic material coating include inorganic material coating phase-change microcapsule,
Water and elastic emulsion；The phase-change microcapsule includes core and wall material；The core includes phase-change material, and the wall material is inorganic
Material；The enthalpy retention of the phase-change microcapsule of the inorganic material coating is 20~99%；The phase-change microcapsule is averaged
Particle diameter is 0.1~100 micron；Inorganic material itself is non-combustible used in the phase-change microcapsule of the inorganic material coating, because
The phase-change microcapsule that the phase-change microcapsule of this inorganic material coating compares organic material cladding has more preferable security performance.This hair
The phase-change coating that the phase-change microcapsule of the bright inorganic material coating being prepared is compound can not only play protection, the work(of decoration
Can, moreover it is possible to regulation and control indoor temperature is realized by accumulation of heat, (is can be controlled in for the house indoor temperature fluctuation coated with interior wall coating is small
2~4 DEG C), energy consumption is reduced, makes it have good heat insulation effect.The preparation process of the phase-change coating is environmentally protective, industrialization
Preparation is easily achieved, and process costs are reduced.
Embodiment
As it was previously stated, the present invention provides a kind of compound phase-change coating of phase-change microcapsule of inorganic material coating, it is described
Phase-change coating includes phase-change microcapsule, elastic emulsion, the water 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 enthalpy of the phase-change microcapsule of the inorganic material coating
Retention 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 includes 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, lotion is formed by emulsification；
4) lotion that step 3) is prepared is subjected to interfacial reaction under room 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 group ,-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, aminopropyl trimethoxysilane, phenyltrimethoxysila,e,
N-octytriethoxysilane, four butyl ester of stannic acid, NW-2 stannic acid ester coupling agents, tetrabutyl zirconate, three isopropyl ester of aluminic acid, aluminic acid three
At least one of benzyl ester.
In step 1), the inorganic material is selected from titanium dioxide, silica, zirconium dioxide, stannic oxide, 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, and adjusts pH to 1~14, is preferably 2~12.
Preferably, there is no particular limitation with its concentration for the selection of the 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 ammonium hydroxide.
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
Sodium salt hydrolysate, acrylic or methacrylic acid and styrene, ethene, vinyl alcohol, vinylacetate, the metering system of copolymer
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, cetyltrimethylammonium bromide and amber sodium dioctyl sulfo.
In step 2), the 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 the 0.5~30% of quality of the emulsion, is preferably 1~20%.
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, when the time of reaction is 0.5-72 small.
The method 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, it is 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.
The method 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 adjusting continuous phase；
C) mixed by above-mentioned dispersed phase and continuously, under the action of emulsifying agent, lotion is formed by emulsification；
D) interfacial reaction is carried out under room 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, carries 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 so that coating is such a common to be built
Material possesses the characteristic of insulation energy storage, so as to fulfill building energy conservation.
In the present invention, there is no particular limitation for the dispersant, is suitable for the invention the system of the phase-change coating i.e.
Can.As exemplary, the dispersant is selected from least one of ammonium polyacrylate salt or sodium salt.The dispersant adds
Enter, help to improve the dispersion performance of solid material.
In the present invention, there is no particular limitation for the wetting agent, is suitable for the invention the system of the phase-change coating i.e.
Can.As exemplary, the wetting agent is in polyalcohol polyoxyethylene ether, isopropyl naphthalene sulfonate, alkylnaphthalene sulfonate
At least one.The addition of the wetting agent, can reduce coating surface tension force.
In the present invention, there is no particular limitation for the thickener, is suitable for the invention the system of the phase-change coating i.e.
Can.As exemplary, the thickener is selected from least one of cellulose family, polyurethane.The addition of the thickener, it is adjustable
Save paint viscosity.
In the present invention, there is no particular limitation for the preservative, is suitable for the invention the system of the phase-change coating i.e.
Can.As exemplary, the preservative is selected from least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate.It is described
The addition of preservative, can inhibit coating to rotten microorganism, prevents that coating demulsification is rotten.
With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the 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 the present invention, and such equivalent forms 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 water phase, be using concentration
2mol/L hydrochloric acid adjusts water phase pH to 2.5.By oil/water two-phase mixtures, emulsified using ultrasound, emulsification times 30min, will
Obtained lotion is transferred in there-necked flask, when the lower 70 DEG C of reactions 12 of mechanical agitation are small.By separating, washing and further
It is dried to obtain the phase-change microcapsule dry powder of inorganic material coating.
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) component and content of phase-change coating
Each component is weighed according to following proportioning：
The dispersant is specially ammonium polyacrylate salt；
The wetting agent is specially polyalcohol polyoxyethylene ether；
The thickener is specially cellulose family；
Preservative used is specially sorbic acid；
The elastic emulsion is less than -20 DEG C of acrylic acid ester emulsion for TG.
(3) preparation of phase-change coating
1) under high velocity agitation (revolution 2000rpm), by above-mentioned mass percent, Jiang Shui and thickener, wetting agent,
Dispersant, preservative are uniformly mixed；Obtain mixed system；
2) under stirring at low speed (revolution 250rpm), by above-mentioned mass percent, nothing is added into above-mentioned mixed system
Phase-change microcapsule, the elastic emulsion of machine material cladding, are prepared the micro- glue of phase transformation of the inorganic material coating after stirring evenly
The compound phase-change coating of capsule.
The performance test results of the phase-change coating are listed in Table 2 below.
Embodiment 2-4
(1) preparation of the phase-change microcapsule of inorganic material coating
With embodiment 1.
(2) component and content of phase-change coating
For the compositional selecting of phase-change coating with embodiment 1, the constituent content difference lies in the phase-change coating is different.
(3) preparation of phase-change coating
With embodiment 1, the constituent content of the phase-change coating is listed in Table 1 below, the performance test results of the phase-change coating
It is listed in Table 2 below.
Embodiment 5
(1) preparation of the phase-change microcapsule of inorganic material coating
10g ethyl orthosilicates, 0.5g aminopropyl trimethoxysilanes and 0.5g phenyltrimethoxysila,es is taken to be added to 30g
In hexadecane, oil phase is used as after being sufficiently mixed.Take 1g tween 80 to be added in 50g water, as water phase, be using concentration
2mol/L hydrochloric acid adjusts water phase pH to 4.By oil/water two-phase mixtures, emulsified using ultrasound, emulsification times 30min, by institute
Obtained lotion is transferred in there-necked flask, when the lower 70 DEG C of reactions 12 of mechanical agitation are small.By separating, washing and further do
The dry phase-change microcapsule dry powder for obtaining inorganic material coating.
The phase transition temperature of the phase-change microcapsule of the inorganic material coating being prepared is 20.1 DEG C, and latent heat of phase change is
133J/g。
(2) component and content of phase-change coating
Each component is weighed according to following proportioning：
The dispersant is specially ammonium polyacrylate salt；
The wetting agent is specially polyalcohol polyoxyethylene ether；
The thickener is specially polyurethanes；
Preservative used is specially potassium sorbate；
The elastic emulsion is less than -20 DEG C of organic silicon acrylic ester lotion for TG.
(3) preparation of phase-change coating
With embodiment 1.
Embodiment 6-9
(1) preparation of the phase-change microcapsule of inorganic material coating
With embodiment 5.
(2) component and content of phase-change coating
For the compositional selecting of phase-change coating with embodiment 5, the constituent content difference lies in the phase-change coating is different.
(3) preparation of phase-change coating
With embodiment 1, the constituent content of the phase-change coating is listed in Table 1 below, the performance test results of the phase-change coating
It is listed in Table 2 below.
Table 1 is the constituent content of the phase-change coating of embodiment 1-9
| Elastic emulsion | Water | Microcapsules | Dispersant | Wetting agent | Thickener | Preservative | |
| Embodiment 1 | 36 | 40 | 20 | 1 | 1 | 1 | 1 |
| Embodiment 2 | 36 | 38 | 22 | 1 | 1 | 1 | 1 |
| Embodiment 3 | 38 | 36 | 22 | 1 | 1 | 1 | 1 |
| Embodiment 4 | 33 | 38 | 25 | 1 | 1 | 1 | 1 |
| Embodiment 5 | 38 | 40 | 20 | 0.5 | 0.5 | 0.5 | 0.5 |
| Embodiment 6 | 36 | 40 | 22 | 0.5 | 0.5 | 0.5 | 0.5 |
| Embodiment 7 | 36 | 35 | 25 | 1 | 1 | 1 | 1 |
| Embodiment 8 | 33 | 35 | 30 | 0.5 | 0.5 | 0.5 | 0.5 |
| Embodiment 9 | 40 | 40 | 20 | 0 | 0 | 0 | 0 |
Table 2 is the performance test results of the phase-change coating of embodiment 1-9
| Latent heat of phase change (J/g) | |
| Embodiment 1 | 30.2 |
| Embodiment 2 | 33.3 |
| Embodiment 3 | 33.5 |
| Embodiment 4 | 36.3 |
| Embodiment 5 | 29.8 |
| Embodiment 6 | 33.6 |
| Embodiment 7 | 36.9 |
| Embodiment 8 | 41.5 |
| Embodiment 9 | 29.5 |
From 1 table 2 of table, coating performance itself will not be caused by adjusting the addition of phase-change microcapsule within the specific limits
Influence, with the raising of microcapsules addition, ascendant trend is presented in the latent heat of phase change of phase-change coating.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to the above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. the compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating, it is characterised in that the phase-change coating includes
Phase-change microcapsule, elastic emulsion and the water of inorganic material coating；The phase-change microcapsule includes core and wall material；The core bag
Phase-change material is included, the wall material is inorganic material；The enthalpy retention of the phase-change microcapsule of the inorganic material coating for 20~
99%；The average grain diameter of the phase-change microcapsule is 0.1~100 micron.
2. phase-change coating according to claim 1, it is characterised in that the phase-change coating can also include dispersant, profit
One or more in humectant, thickener, preservative.
3. phase-change coating according to claim 1 or 2, it is characterised in that the phase-change coating includes following constituent content
Composition：
Wherein, the sum of each component is 100% in composition.
4. according to the phase-change coating described in claim 1-3, it is characterised in that the phase-change coating includes following constituent content
Composition：
Wherein, the sum of each component is 100% in composition.
5. according to the phase-change coating described in claim 1-4, 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.
6. according to the phase-change coating described in claim 1-5, 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 for 8~
At least one of 100).
Preferably, the inorganic material includes SiO2、TiO2、SnO2、ZrO2And Al2O3At least one of.
7. according to the phase-change coating described in claim 1-6, it is characterised in that the phase-change microcapsule of the inorganic material coating
Phase transition temperature 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.
Preferably, the elastic emulsion is selected from Pure acrylic ester elastic emulsion (acrylic ester elastic breasts of such as TG less than -20 DEG C
At least one of liquid) and organic silicon acrylic ester elastic emulsion.
8. the preparation method of the compound phase-change coating of the phase-change microcapsule of the inorganic material coating described in claim 1-7, it is special
Sign is that described method includes following steps：
(1) under high velocity agitation, Jiang Shui and optionally thickener, wetting agent, dispersant, preservative are uniformly mixed；Mixed
System；
(2) under stirring at low speed, phase-change microcapsule, the elastic emulsion of inorganic material coating is added into above-mentioned mixed system, is stirred
The compound phase-change coating of the phase-change microcapsule of the inorganic material coating is prepared after mixing uniformly.
9. preparation method according to claim 8, it is characterised in that in step (1), the revolution of the high-speed stirred is
2000rpm~5000rpm.
Preferably, in step (2), the revolution of the stirring at low speed is 200rpm~400rpm.
10. the phase-change microcapsule of inorganic material coating described in claim 1-7 or that claim 8 or 9 is prepared is compound
Phase-change coating application, it is used in construction material, handicraft field.
Preferably, for ceiling, wall, or preparing handicraft article.
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| CN111218181A (en) * | 2020-03-11 | 2020-06-02 | 浙江理工大学 | Preparation method of self-temperature-adjustable water-based silicone acrylic coating |
| CN112126294A (en) * | 2020-08-27 | 2020-12-25 | 悉奥控股有限公司 | Antibacterial and anti-ultraviolet color temperature-adjusting coating containing iron oxide/silicon dioxide coated paraffin phase-change microcapsules and preparation method thereof |
| CN112194941A (en) * | 2020-09-15 | 2021-01-08 | 悉奥控股有限公司 | Antibacterial and ultraviolet-resistant color temperature-adjusting coating containing iron oxide-coated paraffin phase-change microcapsules and preparation method thereof |
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| CN112194941A (en) * | 2020-09-15 | 2021-01-08 | 悉奥控股有限公司 | Antibacterial and ultraviolet-resistant color temperature-adjusting coating containing iron oxide-coated paraffin phase-change microcapsules and preparation method thereof |
| CN112194941B (en) * | 2020-09-15 | 2021-12-03 | 悉奥控股有限公司 | Antibacterial and ultraviolet-resistant color temperature-adjusting coating containing iron oxide-coated paraffin phase-change microcapsules and preparation method thereof |
| CN114437668A (en) * | 2020-10-31 | 2022-05-06 | 中国石油化工股份有限公司 | Inorganic composite capsule wall phase change microcapsule |
| CN115851045A (en) * | 2022-12-29 | 2023-03-28 | 杭州英诺克新材料有限公司 | Special functional coating for building interior and exterior walls |
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