CN110373163A - A kind of air energy cold-storage phase-change material and preparation method thereof - Google Patents
A kind of air energy cold-storage phase-change material and preparation method thereof Download PDFInfo
- Publication number
- CN110373163A CN110373163A CN201910707770.2A CN201910707770A CN110373163A CN 110373163 A CN110373163 A CN 110373163A CN 201910707770 A CN201910707770 A CN 201910707770A CN 110373163 A CN110373163 A CN 110373163A
- Authority
- CN
- China
- Prior art keywords
- phase
- change material
- cold
- preparation
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09K5/066—Cooling mixtures; De-icing compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses one kind for air energy cold-storage phase-change material and preparation method thereof, the present invention is using capric acid, lauric acid, expanded graphite, nanometer di-iron trioxide, neopelex as raw material, phase-change material for cold storage is made by the series of process such as mixing, co-melting, stirring, concussion, dispersion, cooling, absorption, starting melt temperature is 18 ± 1 DEG C, and phase transformation peak temperature is 23 ± 2 DEG C；Enthalpy of phase change is 120-129kJ/kg, has good toughness and intensity, and stability is strong.Phase-change material table in phase transition process is mutually in solid phase, does not have mobility, and leakage problem is not present.Phase-change material is packaged in container in powdered, can also be made into overall structure with construction material.The present invention is used for day and night temperature major region, to store night summer air cold, when room temperature is higher, cooling capacity is released to interior, adjusts indoor air temperature.
Description
Technical field
The present invention relates to phase-change material preparation technical field, in particular to a kind of air energy cold-storage phase-change material and its preparation
Method.
Background technique
Phase-change accumulation energy utilizes storage and release of the phase-change material in phase transition process to cold and hot amount, realizes the when idle running of energy
The application that shifting is natural energy resources in building provides condition, and fluctuations in indoor temperature is being effectively relieved, and reduces air-conditioning or floor heating is negative
Lotus, " peak load shifting ", energy conservation and environmental protection etc. have wide application prospect.
In recent years, with the development in China, building energy consumption is gradually risen, Zhan Shehui total energy consumption 30% or so, wherein air-conditioning
System energy consumption accounts for about 50% of building energy consumption or so, and the energy conservation of air-conditioning system has become the important composition of national energy strategy,
The natural energy resources such as solar energy, air energy are concerned in the application of building energy saving field.And the regional daytime such as northwest China and North China
The night temperature difference is big, and night air temperature is low (12 DEG C -20 DEG C), and daytime, air themperature was high (28 DEG C -38 DEG C), therefore can be cold by night
Amount is transferred to daytime by Cool Storage Technology.Using phase-change material in phase transition process energy storage with release can characteristic, will be outside night room
Air cold is transferred in room on daytime, is realized the transfer of cooling capacity over time and space, is met resident's indoor thermal comfort requirement, and
The core for realizing this transformation is phase-change material.
Air energy cold-storage phase-change material requires phase transition temperature in ambient temperature range, i.e. the setting temperature of phase-change material is answered
Higher than territory of use's night air themperature minimum, melt temperature should be lower than 5 DEG C of outdoor environment temperature or more (according to air-conditioning
The temperature difference needs), phase transition temperature should be between 15 DEG C -26 DEG C and without surfusion, secondly, phase-change material and heat exchanger should have
Compatibility well, and there is no leakage problems when encapsulating or blending with construction material.
Existing organic phase change material occurs there are mobility, solid-liquid lamination problem or after solidification in phase transition process
With heat exchanger wall surface separation problem, between phase-change material and heat exchanger mainly by it is thermally conductive complete heat transmitting, once divide
From will greatly increase the resistance of heat transfer, the available temperature difference of air energy cold-storage is smaller, this will affect going on smoothly for phase transformation,
It reduces to store and releases cold validity.Secondly, the existing good phase-change material of heating conduction, involves great expense so that system initial cost compared with
It is high.And inorganic phase-changing material has supercooling problem, it is caused to be unfavorable for applying in air energy cold-storage, and its corrosivity is easy to happen
Leakage.
Summary of the invention
For the deficiency that existing phase-change material is applied in air energy cold-storage, the present invention is intended to provide a kind of phase change cold-storage material
Material and preparation method thereof, consider the phase transition temperature of phase-change material, energy storage density, phase transition process lamination problem, with heat exchanger
The problems such as compatibility, the heating conduction of material and encapsulation leakage and economy, develop a kind of Organic composite phase change material.
To achieve the above object, the invention provides the following technical scheme:
A kind of air energy phase-change material for cold storage, the material is by capric acid, lauric acid, nanometer di-iron trioxide, detergent alkylate
Sodium sulfonate and expanded graphite are combined, and each ingredient percent is to calculate 60.0%-61.0%, lauric acid 32.0%- in the last of the ten Heavenly stems
33.0%, nanometer di-iron trioxide 0.4%-1.0%, neopelex 0.1%-0.4%, expanded graphite 5.2%-
7.2%.
A kind of preparation method of air energy cold-storage phase-change material, specific preparation process is as follows:
(1) weighing mass ratio is (60-61): (32-33): (0.4-1.0): (0.1-0.4): capric acid, the moon of (5.2-7.2)
Cinnamic acid, nanometer di-iron trioxide, neopelex, expanded graphite；
(2) capric acid weighed up and lauric acid are put into container, are uniformly mixed, constant temperature heating water-bath heating and melting material, together
When stirred evenly with electronic thermostatic mixer, obtain binary eutectic fatty acid；
(3) weighed nanometer ferric oxide powder is poured into binary eutectic fatty acid made from step (2), room temperature
Under stir evenly；
(4) neopelex (SDBS) is poured into the container of step (3), is stirred evenly under room temperature；
(5) the related container of solution that step (4) is stirred is put into heating water bath, is shaken in ultrasonic oscillation device；
(6) material prepared in step (5) is added in the beaker equipped with expanded graphite, ultrasonic oscillation, insulating box
Middle heating absorption, cooling target product.
With 65 DEG C of constant temperature heating water-bath heating and melting material in the step (2), mixing time is 30-60 minutes.
Bath temperature is 60 DEG C in the step (5), and power is 90-120 points of concussion in the ultrasonic oscillation device of 80W
Clock.
Ultrasonic oscillation 30-50 minutes in the step (6), heating absorption 12-20 hours in 60 DEG C of insulating box.
Beneficial effects of the present invention:
The present invention provides one kind with capric acid, lauric acid, nanometer di-iron trioxide, neopelex and expansion stone
Ink is that raw material passes through co-melting mixing, phase-change material made of the series of process such as absorption.Using capric acid and lauric acid as phase transformation substrate,
Form co-melting fatty acid；Nanometer di-iron trioxide is added with reinforced heat conduction, neopelex is dispersing agent, so that nanometer
Di-iron trioxide is dispersed in phase-change material；Expanded graphite is adsorbent to adsorb phase-change material, is made in its phase transition process
Table is mutually solid-state, does not have mobility；It is 18 ± 2 DEG C that the phase-change material for cold storage of formation, which starts melt temperature, phase transformation peak temperature
It is 23 ± 2 DEG C；Enthalpy of phase change is 120-129kJ/kg, has and stablizes height, does not have mobility, and without mutually separating, preparation process is simple,
Easy to produce and encapsulation.
Detailed description of the invention
Fig. 1 is the pictorial diagram of sample prepared by embodiment one.
Fig. 2 is phase-change material DSC scanning figure prepared by embodiment one.
Fig. 3 is phase-change material DSC scanning figure prepared by embodiment two.
Fig. 4 is phase-change material DSC scanning figure prepared by embodiment three.
Specific embodiment
Embodiment one
The step of the present embodiment includes:
(1) weigh capric acid, lauric acid that quality is respectively 60g, 32g, 0.4g, 0.4g, 7.2g, nanometer di-iron trioxide,
Neopelex and expanded graphite；
(2) weighed capric acid and laurel acid reagent are put into beaker, are uniformly mixed, are added with 65 DEG C of constant temperature heating water-bath
Heat melts capric acid and laurel mixing material, while being stirred evenly with electronic thermostatic mixer, and mixing time is 30 minutes, obtains binary
Eutectic fatty acid；
(3) weighed nanometer ferric oxide powder is poured into binary eutectic fatty acid made from step (2), room temperature
Under stir evenly；
(4) neopelex (SDBS) is poured into the container of step (3), is stirred evenly under room temperature；
(5) the related container of solution that step (4) is stirred is put into bath temperature is 60 DEG C, and power is the ultrasonic wave of 80W
It is shaken 90 minutes in oscillator；
(6) material prepared in step (5) is added in the beaker equipped with expanded graphite, ultrasonic oscillation 30 minutes,
In 60 DEG C of insulating box after heating absorption 12 hours, cooling target product.
Phase-change material for cold storage enthalpy of phase change manufactured in the present embodiment is 121.08kJ/kg, and starting melt temperature is 18.38 DEG C,
Phase transformation peak temperature is 23.30 DEG C.Capric acid and lauric acid are phase transformation raw material in the phase-change material, the two congruent melting formed two
First mixed acid is phase transformation basis material；Using nanometer di-iron trioxide as reinforced heat conduction material, neopelex is dispersion
Agent, expanded graphite are that adsorbent is modified basis material, and the phase-change material for cold storage of formation, which has, stablizes height, do not have flowing
Property, without mutually separating, preparation process is simple, easy to produce.
Fig. 1 is the pictorial diagram of composite phase-change material made from embodiment one, and phase-change material is in black gray expandable as can be seen from Figure
Powdered, rear phase-change material table is mutually constant before phase change.
Fig. 2 is composite phase-change material DSC scanning figure prepared in embodiment one, it can be seen from the figure that phase-change material
Beginning melt temperature be 18.38 DEG C, enthalpy of phase change 121.08kJ/kg, melting temperature section be 18.38-27 DEG C
Embodiment two
The step of the present embodiment includes:
(1) capric acid, lauric acid, nanometer three oxidation two that quality is respectively 60.5g, 32.5g, 0.7g, 0.2g, 6.1g is weighed
Iron, neopelex and expanded graphite；
(2) weighed capric acid and laurel acid reagent are put into beaker, are uniformly mixed, are added with 65 DEG C of constant temperature heating water-bath
Heat melts capric acid and laurel mixing material, while being stirred evenly with electronic thermostatic mixer, and mixing time is 30 minutes, obtains binary
Eutectic fatty acid；
(3) weighed nanometer ferric oxide powder is poured into binary eutectic fatty acid made from step (2), room temperature
Under stir evenly；
(4) neopelex (SDBS) is poured into the container of step (3), is stirred evenly under room temperature；
(5) the related container of solution that step (4) is stirred is put into bath temperature is 60 DEG C, and power is the ultrasonic wave of 80W
It is shaken 90 minutes in oscillator；
(6) material prepared in step (5) is added in the beaker equipped with expanded graphite, ultrasonic oscillation 30 minutes,
In 60 DEG C of insulating box after heating absorption 12 hours, cooling target product.
Phase-change material for cold storage enthalpy of phase change manufactured in the present embodiment is 124.78kJ/kg, and starting melt temperature is 18.56 DEG C,
Phase transformation peak temperature is 22.48 DEG C.Capric acid and lauric acid are phase transformation raw material in the phase-change material, the two congruent melting formed two
First mixed acid is phase transformation basis material；Using nanometer di-iron trioxide as reinforced heat conduction material, neopelex is dispersion
Agent, expanded graphite are that adsorbent is modified basis material, and the phase-change material for cold storage of formation, which has, stablizes height, do not have flowing
Property, without mutually separating, preparation process is simple, easy to produce.
Fig. 3 is composite phase-change material DSC scanning figure prepared in embodiment one, it can be seen from the figure that phase-change material
Starting melt temperature is 18.56 DEG C, enthalpy of phase change 124.78kJ/kg, and melting temperature section is 18.56-26.46 DEG C
Embodiment three
(1) weigh capric acid, lauric acid that quality is respectively 61g, 33g, 0.5g, 0.3g, 5.2g, nanometer di-iron trioxide,
Neopelex and expanded graphite；
(2) weighed capric acid and laurel acid reagent are put into beaker, are uniformly mixed, are added with 65 DEG C of constant temperature heating water-bath
Heat melts capric acid and laurel mixing material, while being stirred evenly with electronic thermostatic mixer, and mixing time is 30 minutes, obtains binary
Eutectic fatty acid；
(3) weighed nanometer ferric oxide powder is poured into binary eutectic fatty acid made from step (2), room temperature
Under stir evenly；
(4) neopelex (SDBS) is poured into the container of step (3), is stirred evenly under room temperature；
(5) the related container of solution that step (4) is stirred is put into bath temperature is 60 DEG C, and power is the ultrasonic wave of 80W
It is shaken 90 minutes in oscillator；
(6) material prepared in step (5) is added in the beaker equipped with expanded graphite, ultrasonic oscillation 30 minutes,
In 60 DEG C of insulating box after heating absorption 12 hours, cooling target product.
Phase-change material for cold storage enthalpy of phase change manufactured in the present embodiment is 129.83kJ/kg, and starting melt temperature is 18.40 DEG C,
Phase transformation peak temperature is 24.32 DEG C.Capric acid and lauric acid are phase transformation raw material in the phase-change material, the two congruent melting formed two
First mixed acid is phase transformation basis material；Using nanometer di-iron trioxide as reinforced heat conduction material, neopelex is dispersion
Agent, expanded graphite are that adsorbent is modified basis material, and the phase-change material for cold storage of formation, which has, stablizes height, do not have flowing
Property, without mutually separating, preparation process is simple, easy to produce.
Fig. 4 is composite phase-change material DSC scanning figure prepared in embodiment two, it can be seen from the figure that phase-change material
Beginning melt temperature be 18.40 DEG C, enthalpy of phase change 129.83kJ/kg, melting temperature section be 18.40-30.2 DEG C.
Embodiment be only it is exemplary, it is unrestricted, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.
Claims (5)
1. a kind of air energy phase-change material for cold storage, which is characterized in that the material is by capric acid, lauric acid, nanometer di-iron trioxide, ten
Dialkyl benzene sulfonic acids sodium and expanded graphite are combined, and each ingredient percent is to calculate 60.0%-61.0%, lauric acid in the last of the ten Heavenly stems
32.0%-33.0%, nanometer di-iron trioxide 0.4%-1.0%, neopelex 0.1%-0.4%, expanded graphite
5.2%-7.2%.
2. a kind of preparation method of air energy cold-storage phase-change material described in claim 1, which is characterized in that specific preparation step
It is as follows:
(1) capric acid, lauric acid, nanometer di-iron trioxide, neopelex, expanded graphite are weighed in proportion；
(2) capric acid weighed up and lauric acid are put into container, are uniformly mixed, constant temperature heating water-bath heating and melting material is used simultaneously
Electric operated thermostatic blender stirs evenly, and obtains binary eutectic fatty acid；
(3) weighed nanometer ferric oxide powder is poured into binary eutectic fatty acid made from step (2), is stirred under room temperature
It mixes uniformly；
(4) neopelex (SDBS) is poured into the container of step (3), is stirred evenly under room temperature；
(5) the related container of solution that step (4) is stirred is put into heating water bath, is shaken in ultrasonic oscillation device；
(6) material prepared in step (5) is added in the beaker equipped with expanded graphite, ultrasonic oscillation, is added in insulating box
Heat absorption, cooling target product.
3. a kind of preparation method of air energy cold-storage phase-change material according to claim 2, which is characterized in that the step
Suddenly with 65 DEG C of constant temperature heating water-bath heating and melting material in (2), mixing time is 30-60 minutes.
4. a kind of preparation method of air energy cold-storage phase-change material according to claim 2, which is characterized in that the step
Suddenly bath temperature is 60 DEG C in (5), is shaken 90-120 minutes in the ultrasonic oscillation device that power is 80W.
5. a kind of preparation method of air energy cold-storage phase-change material according to claim 2, which is characterized in that the step
Suddenly ultrasonic oscillation 30-50 minutes in (6), heating absorption 12-20 hours in 60 DEG C of insulating box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707770.2A CN110373163A (en) | 2019-08-01 | 2019-08-01 | A kind of air energy cold-storage phase-change material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707770.2A CN110373163A (en) | 2019-08-01 | 2019-08-01 | A kind of air energy cold-storage phase-change material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110373163A true CN110373163A (en) | 2019-10-25 |
Family
ID=68257687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910707770.2A Pending CN110373163A (en) | 2019-08-01 | 2019-08-01 | A kind of air energy cold-storage phase-change material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110373163A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339911A (en) * | 2021-06-16 | 2021-09-03 | 北京建筑大学 | Cold storage tank device |
| CN113357724A (en) * | 2021-06-16 | 2021-09-07 | 北京建筑大学 | Ice storage air conditioning system |
| CN113372809A (en) * | 2021-04-23 | 2021-09-10 | 浙江工商大学 | Intelligent heat-insulating coating and preparation and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594192A (en) * | 2004-07-15 | 2005-03-16 | 南京大学 | Energy storage building material and preparing method thereof |
| CN102977858A (en) * | 2011-09-07 | 2013-03-20 | 中国科学院大连化学物理研究所 | Phase change material for thermal energy storage and preparation method thereof. |
| CN103059817A (en) * | 2012-12-27 | 2013-04-24 | 东南大学 | Composite shape-stabilized phase change material, preparation method and heat storage mortar prepared by using phase change material |
| CN103666380A (en) * | 2013-12-09 | 2014-03-26 | 南京工业大学 | Preparation method of porous medium composite phase change energy storage particles |
| CN103992772A (en) * | 2014-05-23 | 2014-08-20 | 西南交通大学 | Composite phase change energy storage material and preparation method thereof |
| CN104650815A (en) * | 2015-02-06 | 2015-05-27 | 桂林电子科技大学 | Composite figuration phase change cold-storage material and preparation method thereof |
| CN106244111A (en) * | 2016-07-29 | 2016-12-21 | 贺迈新能源科技（上海）有限公司 | A kind of nanometer eutectic phase-change material and preparation method |
| CN109054769A (en) * | 2018-09-29 | 2018-12-21 | 江西理工大学 | Capric acid-palmitinic acid/expanded graphite NEW TYPE OF COMPOSITE phase-changing energy storage material preparation method |
| CN110003863A (en) * | 2019-03-29 | 2019-07-12 | 上海海事大学 | A kind of micro- jelly chilled food is fresh-keeping to use phase-change material for cold storage and preparation method |
-
2019
- 2019-08-01 CN CN201910707770.2A patent/CN110373163A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594192A (en) * | 2004-07-15 | 2005-03-16 | 南京大学 | Energy storage building material and preparing method thereof |
| CN102977858A (en) * | 2011-09-07 | 2013-03-20 | 中国科学院大连化学物理研究所 | Phase change material for thermal energy storage and preparation method thereof. |
| CN103059817A (en) * | 2012-12-27 | 2013-04-24 | 东南大学 | Composite shape-stabilized phase change material, preparation method and heat storage mortar prepared by using phase change material |
| CN103666380A (en) * | 2013-12-09 | 2014-03-26 | 南京工业大学 | Preparation method of porous medium composite phase change energy storage particles |
| CN103992772A (en) * | 2014-05-23 | 2014-08-20 | 西南交通大学 | Composite phase change energy storage material and preparation method thereof |
| CN104650815A (en) * | 2015-02-06 | 2015-05-27 | 桂林电子科技大学 | Composite figuration phase change cold-storage material and preparation method thereof |
| CN106244111A (en) * | 2016-07-29 | 2016-12-21 | 贺迈新能源科技（上海）有限公司 | A kind of nanometer eutectic phase-change material and preparation method |
| CN109054769A (en) * | 2018-09-29 | 2018-12-21 | 江西理工大学 | Capric acid-palmitinic acid/expanded graphite NEW TYPE OF COMPOSITE phase-changing energy storage material preparation method |
| CN110003863A (en) * | 2019-03-29 | 2019-07-12 | 上海海事大学 | A kind of micro- jelly chilled food is fresh-keeping to use phase-change material for cold storage and preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372809A (en) * | 2021-04-23 | 2021-09-10 | 浙江工商大学 | Intelligent heat-insulating coating and preparation and application thereof |
| CN113339911A (en) * | 2021-06-16 | 2021-09-03 | 北京建筑大学 | Cold storage tank device |
| CN113357724A (en) * | 2021-06-16 | 2021-09-07 | 北京建筑大学 | Ice storage air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110373163A (en) | A kind of air energy cold-storage phase-change material and preparation method thereof | |
| He et al. | A novel polynary fatty acid/sludge ceramsite composite phase change materials and its applications in building energy conservation | |
| Hekimoğlu et al. | Thermal management performance and mechanical properties of a novel cementitious composite containing fly ash/lauric acid-myristic acid as form-stable phase change material | |
| Zhang et al. | Thermal energy storage cement mortar containing n-octadecane/expanded graphite composite phase change material | |
| Yousefi et al. | Development of novel form-stable phase change material (PCM) composite using recycled expanded glass for thermal energy storage in cementitious composite | |
| Zhang et al. | Granular phase changing composites for thermal energy storage | |
| CN101805591B (en) | Inorganic hydrated salt expanded graphite composite phase-changing heat storage material and preparation method thereof | |
| CN104674978B (en) | A kind of outer wall structure of building body possessing double-deck sizing phase-change material layer | |
| CN102531506A (en) | Gypsum-based paraffin phase-changing energy-storing wall board and manufacture method thereof | |
| CN102531550A (en) | Poly fatty acid shape-stabilized phase change material and preparation method thereof | |
| CN102173664A (en) | Graphite-paraffin composite phase-changing and energy-storing concrete and preparation method thereof | |
| CN106047302B (en) | A kind of Inorganic phase change energy storage material and preparation method thereof | |
| CN103059818A (en) | Preparation method of phase change energy storage material | |
| CN107502299A (en) | A kind of multiphase medium phase-change heat-storage material and preparation method thereof | |
| CN106497521A (en) | A kind of preparation method of ternary aliphatic acid silicon dioxide composite shape-stabilized phase phase-change material | |
| CN102268244A (en) | Preparation method of low-temperature inorganic eutectic salt phase-change material | |
| CN101144006A (en) | Phase-change energy-storage mortar and preparation method thereof | |
| CN108485611A (en) | A kind of phase change heat storage material and preparation method thereof | |
| CN102925114A (en) | Fly ash phase change microbead, preparation method thereof and application | |
| CN107523272B (en) | High-thermal-conductivity binary low-eutectic-temperature-coefficient hydrated salt phase-change material and preparation method thereof | |
| CN109233752A (en) | A kind of inorganic hydrated salt composite phase-change heat-storage material and preparation method thereof | |
| CN100595253C (en) | Phase-change heat-storing material and preparation thereof | |
| CN102268245B (en) | Preparation method of room temperature inorganic phase-change material | |
| CN102757766A (en) | Low-temperature phase change thermal storage material and preparation method thereof | |
| KR20200006675A (en) | Mortar composition having improved thermal performance at low temperatures, concrete including the same and mortar composition preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191025 |