CN108410430A - A kind of preparation method of intelligent building phase-changing energy storage material - Google Patents
A kind of preparation method of intelligent building phase-changing energy storage material Download PDFInfo
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Abstract
The present invention provides a kind of preparation methods of intelligent building phase-changing energy storage material, include the following steps：Modified montmorillonoid, bentonite and water are mixed and are ultrasonically treated to obtain suspension；Into suspension plus pentaerythrite aqueous solution stirs；Add the aqueous solution of ascorbic acid and trimethylolpropane；Reaction, is cooled to room temperature；Filtering, dry the powders A of washing；Manila hemp fiber, corn stalk fiber and soybean fiber are mixed, the mixed liquor of sodium hydroxide and second alcohol and water is added to stir；Washing filtering is dried, and nitric acid and the concentrated sulfuric acid, heating and thermal insulation reaction are added；Filtering, washing is to neutrality, dry cellulose mixture B；Powders A, cellulose mixture B, graphene aerogel, ferric oxide nano ball, n-octadecane and polyethylene glycol are mixed；Cooling and shaping to obtain the final product.Intelligent building prepared by this law has very high latent heat of phase change with phase-changing energy storage material, and energy-saving effect is good, and thermal coefficient is high, has extraordinary thermal conductivity, while its melting temperature is also higher, constancy is very good.
Description
Technical field
The present invention relates to a kind of preparation methods of intelligent building phase-changing energy storage material.
Background technology
With modern science and technology and industrial high speed development, people are also growing day by day to the demand of the energy.Solve people couple
The unprecedented crisis of energy demand first, finding new clean energy resource, such as develops and uses nuclear energy, Hydrogen Energy, solar energy；Second is that exploitation
New power-economizing method extends the usage time of the energy, and that realizes the existing energy utilizes maximization.Thermal energy storage technology is to work as premise
Therefore the effective ways of high energy source utilization rate develop new energy storage technology as research theme in recent years.Phase-changing energy storage material
The room and time distribution disequilibrium that can solve energy availability and demand, improves energy use efficiency, solar energy is energy saving, waste heat returns
The fields such as receipts, aerospace, building energy conservation, electronic equipment dissipating heat are widely used.
Invention content
Technical problems to be solved：The object of the present invention is to provide a kind of preparation sides of intelligent building phase-changing energy storage material
Method, prepared intelligent building have very high latent heat of phase change with phase-changing energy storage material, and energy-saving effect is good, and thermal coefficient is high, tool
There is extraordinary thermal conductivity, while its melting temperature is also higher, constancy is very good.
Technical solution：A kind of preparation method of intelligent building phase-changing energy storage material, ingredient are by weight, including following
Step：
（1）1-3 parts of modified montmorillonoids, 1-3 parts of bentonites and 30-50 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1-2
H obtains suspension；
（2）The 2-4 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60-80min；
（3）It is slowly added to the 5-10 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, 10-12 h is reacted at 85-90 DEG C, are cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1-2 parts of manila hemp fibers, 2-4 parts of corn stalk fibers and 2-5 parts of soybean fibers are mixed, the short fibre of 0.5-1mm is cut into
The mixed liquor of 15-20 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters is added in dimension, and 5-6h is stirred at 60-70 DEG C of temperature；
（7）After washing filtering, vacuum drying is added 68% nitric acid of 2-4 parts and 98% concentrated sulfuric acid of 2-4 parts, is heated to 90-95 DEG C, protects
Temperature reaction 30-40min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, B, 2-3 parts of graphene aerogels of cellulose mixture, 0.5-1 parts of ferric oxide nano balls, 1-3 parts positive 18
Alkane and 80-100 parts of polyethylene glycol mixing, mix 20-30min, wherein ultrasound under sonic oscillation and vacuum suction synergistic effect
Power is 150-180W, and frequency 40-45kHz, relative degree of vacuum is -60kPa；
（10）Cooling and shaping to obtain the final product.
It is further preferred that the preparation method of the modified montmorillonoid is：
The first step：The sodium chloride solution of 10 parts of montmorillonites and 50 parts of 1.0mol/L are mixed, 18h is stirred；
Second step：It centrifuges at rotating speed 1500r/min, is cleaned with distilled water, ground after drying；
Third walks：It is added 100 parts and is dissolved with 10 parts of sodium dodecyl benzene sulfonate aqueous solutions, 18 h of oscillation mixing；
4th step：It centrifuges at rotating speed 1500r/min, is cleaned with distilled water, ground after drying to obtain the final product.
It is further preferred that the graphene aerogel aperture is 10-30 nm.
It is further preferred that the grain size of the ferric oxide nano ball is 50-100nm.
It is further preferred that the step（9）Middle ultrasonic power is 175W, frequency 43kHz.
Advantageous effect：
1. interlamellar spacing increases after imvite modified, specific surface area reduces, and arrangement of the organic molecule between cheating engaging layer is by unordered
Become orderly, and the organic long-chain cladding of montmorillonite layer outer surface becomes more, causes grain edges relatively fuzzy, in addition to this, no
Organic long-chain with the load of clay unit outer surface can be also crossed-over, and new three-dimensional open pores be formed, to increase modification
The average pore size of montmorillonite.Meanwhile cellulose B has a large amount of polar hydroxyl group, shape between these groups and polyethylene glycol
At a large amount of hydrogen bond, composite material can be promoted to crystallize, reduce crystallization temperature；Conversely, this hydrogen bond action in melting process
The movement of polyglycol chain will be hindered, improves its melting temperature.Polyethylene glycol due to micropore and mushy modified montmorillonoid
Introducing with cellulose B can play preferable suction-operated, and material is made to have good styling.
2. the present invention using concussion absorbing process, compared with mechanical agitation, can be obviously reduced to ferric oxide nano ball,
The destruction of graphene aerogel and polyethylene glycol etc., and higher vacuum degree further reduced each component molecules chain and mix
Oxidative degradation in journey, meanwhile, the dispersion that can effectively improve under sonic oscillation and vacuum suction synergistic effect between each ingredient is mixed
It closes, improves phase transformation enthalpy.
3. the intelligent building prepared by the method for the present invention has very high latent heat of phase change with phase-changing energy storage material, highest can
Up to 140.01kJ/kg, energy-saving effect is good, and thermal coefficient is up to 5.782W/ (mK), has extraordinary thermal conductivity, while its
Melting temperature（40min trickles）Also higher, up to 79 DEG C, constancy is very good.
Specific implementation mode
Embodiment 1
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of modified montmorillonoid, 1 part of bentonite and 30 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1 h, must suspend
Liquid；
（2）2 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60min；
（3）It is slowly added to 5 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, reacts 10h at 85 DEG C, be cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1 part of manila hemp fiber, 2 parts of corn stalk fibers and 2 parts of soybean fibers are mixed, the staple fiber of 0.5mm is cut into, is added
The mixed liquor of 15 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters, 5h is stirred under temperature 60 C；
（7）After washing filtering, vacuum drying is added 2 part of 68% nitric acid and 2 part of 98% concentrated sulfuric acid, is heated to 90 DEG C, insulation reaction
30min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, cellulose mixture B, 2 parts of graphene aerogels, 0.5 part of ferric oxide nano ball, 1 part of n-octadecane and 80
Part polyethylene glycol mixing mixes 20min, wherein ultrasonic power 150W, frequency under sonic oscillation and vacuum suction synergistic effect
Rate is 40kHz, and relative degree of vacuum is -60kPa；
（10）Cooling and shaping to obtain the final product.
Embodiment 2
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1.5 parts of modified montmorillonoids, 2 parts of bentonites and 35 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1.5 h, obtain outstanding
Supernatant liquid；
（2）3 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 70min；
（3）It is slowly added to 7 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, 11 h is reacted at 87 DEG C, are cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1.5 parts of manila hemp fibers, 2.5 parts of corn stalk fibers and 3 parts of soybean fibers are mixed, the staple fiber of 0.6mm is cut into,
The mixed liquor of 17 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters is added, 5.5h is stirred at 65 DEG C of temperature；
（7）After washing filtering, vacuum drying is added 3 part of 68% nitric acid and 3 part of 98% concentrated sulfuric acid, is heated to 93 DEG C, insulation reaction
35min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, cellulose mixture B, 2.5 parts of graphene aerogels, 0.7 part of ferric oxide nano ball, 2 parts of n-octadecanes and
The mixing of 85 parts of polyethylene glycol mixes 25min under sonic oscillation and vacuum suction synergistic effect, wherein ultrasonic power is
160W, frequency 42kHz, relative degree of vacuum are -60kPa；
（10）Cooling and shaping to obtain the final product.
Embodiment 3
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）2 parts of modified montmorillonoids, 2 parts of bentonites and 40 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1.5 h, must suspend
Liquid；
（2）3 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 70min；
（3）It is slowly added to 7 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, 11 h is reacted at 88 DEG C, are cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1.5 parts of manila hemp fibers, 3 parts of corn stalk fibers and 4 parts of soybean fibers are mixed, the staple fiber of 0.7mm is cut into, adds
The mixed liquor for entering 18 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters stirs 5.5h at 65 DEG C of temperature；
（7）After washing filtering, vacuum drying is added 3 part of 68% nitric acid and 3 part of 98% concentrated sulfuric acid, is heated to 93 DEG C, insulation reaction
35min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, B, 2-3 parts of graphene aerogels of cellulose mixture, 0.8 part of ferric oxide nano ball, 2 parts of n-octadecanes and
The mixing of 90 parts of polyethylene glycol mixes 25min under sonic oscillation and vacuum suction synergistic effect, wherein ultrasonic power is
170W, frequency 43kHz, relative degree of vacuum are -60kPa；
（10）Cooling and shaping to obtain the final product.
Embodiment 4
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）3 parts of modified montmorillonoids, 3 parts of bentonites and 50 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 2 h, must suspend
Liquid；
（2）4 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 80min；
（3）It is slowly added to 10 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, 12 h is reacted at 90 DEG C, are cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）2 parts of manila hemp fibers, 4 parts of corn stalk fibers and 5 parts of soybean fibers are mixed, the staple fiber of 1mm is cut into, is added 20
The mixed liquor of part 8wt% sodium hydroxides and 50wt% second alcohol and waters, 6h is stirred under temperature 70 C；
（7）After washing filtering, vacuum drying is added 4 part of 68% nitric acid and 4 part of 98% concentrated sulfuric acid, is heated to 95 DEG C, insulation reaction
40min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, cellulose mixture B, 3 parts of graphene aerogels, 1 part of ferric oxide nano ball, 3 parts of n-octadecanes and 100 parts
Polyethylene glycol mixes, and mixes 30min under sonic oscillation and vacuum suction synergistic effect, wherein ultrasonic power 180W, frequency
Rate is 45kHz, and relative degree of vacuum is -60kPa；
（10）Cooling and shaping to obtain the final product.
Comparative example 1
The present embodiment is with embodiment 1 the difference is that using unmodified montmorillonite, specially：
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of montmorillonite, 1 part of bentonite and 30 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1 h, obtain suspension；
（2）2 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60min；
（3）It is slowly added to 5 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, reacts 10h at 85 DEG C, be cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1 part of manila hemp fiber, 2 parts of corn stalk fibers and 2 parts of soybean fibers are mixed, the staple fiber of 0.5mm is cut into, is added
The mixed liquor of 15 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters, 5h is stirred under temperature 60 C；
（7）After washing filtering, vacuum drying is added 2 part of 68% nitric acid and 2 part of 98% concentrated sulfuric acid, is heated to 90 DEG C, insulation reaction
30min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）By powders A, cellulose mixture B, 2 parts of graphene aerogels, 0.5 part of ferric oxide nano ball, 1 part of n-octadecane and 80
Part polyethylene glycol mixing mixes 20min, wherein ultrasonic power 150W, frequency under sonic oscillation and vacuum suction synergistic effect
Rate is 40kHz, and relative degree of vacuum is -60kPa；
（10）Cooling and shaping to obtain the final product.
Comparative example 2
The present embodiment is with embodiment 1 the difference is that not containing powders A, specially：
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of manila hemp fiber, 2 parts of corn stalk fibers and 2 parts of soybean fibers are mixed, the staple fiber of 0.5mm is cut into, is added
The mixed liquor of 15 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters, 5h is stirred under temperature 60 C；
（2）After washing filtering, vacuum drying is added 2 part of 68% nitric acid and 2 part of 98% concentrated sulfuric acid, is heated to 90 DEG C, insulation reaction
30min；
（3）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（4）By cellulose mixture B, 2 parts of graphene aerogels, 0.5 part of ferric oxide nano ball, 1 part of n-octadecane and 80 parts of poly- second
Glycol mixes, and mixes 20min under sonic oscillation and vacuum suction synergistic effect, wherein ultrasonic power 150W, frequency are
40kHz, relative degree of vacuum are -60kPa；
（5）Cooling and shaping to obtain the final product.
Comparative example 3
The present embodiment is with embodiment 1 the difference is that not containing ferric oxide nano ball, specially：
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of modified montmorillonoid, 1 part of bentonite and 30 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1 h, must suspend
Liquid；
（2）2 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60min；
（3）It is slowly added to 5 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, reacts 10h at 85 DEG C, be cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1 part of manila hemp fiber, 2 parts of corn stalk fibers and 2 parts of soybean fibers are mixed, the staple fiber of 0.5mm is cut into, is added
The mixed liquor of 15 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters, 5h is stirred under temperature 60 C；
（7）After washing filtering, vacuum drying is added 2 part of 68% nitric acid and 2 part of 98% concentrated sulfuric acid, is heated to 90 DEG C, insulation reaction
30min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）Powders A, cellulose mixture B, 2 parts of graphene aerogels, 1 part of n-octadecane and 80 parts of polyethylene glycol are mixed, super
Sound oscillation and the lower mixing 20min of vacuum suction synergistic effect, wherein ultrasonic power 150W, frequency 40kHz, relative vacuum
Degree is -60kPa；
（10）Cooling and shaping to obtain the final product.
Comparative example 4
The present embodiment is with embodiment 1 the difference is that not containing graphene aerogel, specially：
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of modified montmorillonoid, 1 part of bentonite and 30 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1 h, must suspend
Liquid；
（2）2 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60min；
（3）It is slowly added to 5 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, reacts 10h at 85 DEG C, be cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）1 part of manila hemp fiber, 2 parts of corn stalk fibers and 2 parts of soybean fibers are mixed, the staple fiber of 0.5mm is cut into, is added
The mixed liquor of 15 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters, 5h is stirred under temperature 60 C；
（7）After washing filtering, vacuum drying is added 2 part of 68% nitric acid and 2 part of 98% concentrated sulfuric acid, is heated to 90 DEG C, insulation reaction
30min；
（8）Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
（9）Powders A, cellulose mixture B, 0.5 part of ferric oxide nano ball, 1 part of n-octadecane and 80 parts of polyethylene glycol are mixed,
Sonic oscillation and the lower mixing 20min of vacuum suction synergistic effect, wherein ultrasonic power 150W, frequency 40kHz, relatively very
Reciprocal of duty cycle is -60kPa；
（10）Cooling and shaping to obtain the final product.
Comparative example 5
The present embodiment is with embodiment 1 the difference is that not containing cellulose mixture B, specially：
A kind of preparation method of intelligent building phase-changing energy storage material, ingredient by weight, include the following steps：
（1）1 part of modified montmorillonoid, 1 part of bentonite and 30 parts of water are mixed, is put into Ultrasound Instrument and is ultrasonically treated 1 h, must suspend
Liquid；
（2）2 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60min；
（3）It is slowly added to 5 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
（4）It is transferred in reaction kettle, reacts 10h at 85 DEG C, be cooled to room temperature；
（5）Filtering, is dried in vacuo to obtain powders A after washing；
（6）Powders A, 2 parts of graphene aerogels, 0.5 part of ferric oxide nano ball, 1 part of n-octadecane and 80 parts of polyethylene glycol are mixed
It closes, mixes 20min under sonic oscillation and vacuum suction synergistic effect, wherein ultrasonic power 150W, frequency 40kHz, phase
It is -60kPa to vacuum degree；
（7）Cooling and shaping to obtain the final product.
The partial properties index of 1 intelligent building phase-changing energy storage material of table
| Name of product | Latent heat of phase change（kJ/kg） | Thermal coefficient（W/(m·K)） | Melting temperature（℃） |
| Embodiment 1 | 139.66 | 5.763 | 79 |
| Embodiment 2 | 139.75 | 5.773 | 79 |
| Embodiment 3 | 140.01 | 5.782 | 79 |
| Embodiment 4 | 139.70 | 5.771 | 79 |
| Comparative example 1 | 139.47 | 5.758 | 76 |
| Comparative example 2 | 137.90 | 5.765 | 74 |
| Comparative example 3 | 138.02 | 5.019 | 71 |
| Comparative example 4 | 134.41 | 5.013 | 70 |
| Comparative example 5 | 137.01 | 5.753 | 75 |
The partial properties index of intelligent building phase-changing energy storage material prepared by the method for the present invention is seen the above table, it may be seen that
It has very high latent heat of phase change, reaches as high as 140.01kJ/kg, energy-saving effect is good, and thermal coefficient is up to 5.782W/ (m
K), there is extraordinary thermal conductivity, while its melting temperature（40min trickles）Also higher, up to 79 DEG C, constancy is non-
Chang Hao.
Claims (5)
1. a kind of preparation method of intelligent building phase-changing energy storage material, it is characterised in that：Ingredient is by weight, including following
Step：
1-3 parts of modified montmorillonoids, 1-3 parts of bentonites and 30-50 parts of water are mixed, supersound process 1-2 h in Ultrasound Instrument is put into, obtains
Suspension；
The 2-4 parts of aqueous solutions containing 20wt% pentaerythrites are added dropwise into suspension, stir 60-80min；
It is slowly added to the 5-10 parts of aqueous solutions containing 0.6wt% ascorbic acid and 10wt% trimethylolpropanes；
It is transferred in reaction kettle, 10-12 h is reacted at 85-90 DEG C, are cooled to room temperature；
Filtering, is dried in vacuo to obtain powders A after washing；
1-2 parts of manila hemp fibers, 2-4 parts of corn stalk fibers and 2-5 parts of soybean fibers are mixed, the staple fiber of 0.5-1mm is cut into,
The mixed liquor of 15-20 parts of 8wt% sodium hydroxides and 50wt% second alcohol and waters is added, 5-6h is stirred at 60-70 DEG C of temperature；
After washing filtering, 68% nitric acid of 2-4 parts and 98% concentrated sulfuric acid of 2-4 parts is added in vacuum drying, is heated to 90-95 DEG C, heat preservation is anti-
Answer 30-40min；
Filtering uses ethyl alcohol and distillation water washing to neutrality respectively, dry cellulose mixture B；
By powders A, B, 2-3 parts of graphene aerogels of cellulose mixture, 0.5-1 parts of ferric oxide nano balls, 1-3 parts of n-octadecanes and
80-100 parts of polyethylene glycol mixing mix 20-30min, wherein ultrasonic power under sonic oscillation and vacuum suction synergistic effect
For 150-180W, frequency 40-45kHz, relative degree of vacuum is -60kPa；
Cooling and shaping to obtain the final product.
2. a kind of preparation method of intelligent building phase-changing energy storage material according to claim 1, it is characterised in that：Institute
The preparation method for stating modified montmorillonoid is：
The first step：The sodium chloride solution of 10 parts of montmorillonites and 50 parts of 1.0mol/L are mixed, 18h is stirred；
Second step：It centrifuges at rotating speed 1500r/min, is cleaned with distilled water, ground after drying；
Third walks：It is added 100 parts and is dissolved with 10 parts of sodium dodecyl benzene sulfonate aqueous solutions, 18 h of oscillation mixing；
4th step：It centrifuges at rotating speed 1500r/min, is cleaned with distilled water, ground after drying to obtain the final product.
3. a kind of preparation method of intelligent building phase-changing energy storage material according to claim 1, it is characterised in that：Institute
It is 10-30 nm to state graphene aerogel aperture.
4. a kind of preparation method of intelligent building phase-changing energy storage material according to claim 1, it is characterised in that：It is described
The grain size of ferric oxide nano ball is 50-100nm.
5. a kind of preparation method of intelligent building phase-changing energy storage material according to claim 1, it is characterised in that：It is described
Step（9）Middle ultrasonic power is 175W, frequency 43kHz.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256695A (en) * | 2019-06-11 | 2019-09-20 | 苏州阿德旺斯新材料有限公司 | A kind of block aeroge phase change composite material, preparation method and application |
| IT202000006250A1 (en) * | 2020-03-25 | 2021-09-25 | Groppalli S R L | INERT MIX AND ITS USE AS A PHASE CHANGE MATERIAL FOR LOW TEMPERATURE APPLICATIONS |
| IT202000006259A1 (en) * | 2020-03-25 | 2021-09-25 | Groppalli S R L | INERT MIX AND ITS USE AS A PHASE CHANGE MATERIAL FOR HIGH TEMPERATURE APPLICATIONS |
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