CN107523273A - A kind of polymer matrix phase-change microcapsule energy storage material and preparation method thereof - Google Patents
A kind of polymer matrix phase-change microcapsule energy storage material and preparation method thereof Download PDFInfo
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- CN107523273A CN107523273A CN201710359359.1A CN201710359359A CN107523273A CN 107523273 A CN107523273 A CN 107523273A CN 201710359359 A CN201710359359 A CN 201710359359A CN 107523273 A CN107523273 A CN 107523273A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
Abstract
The invention belongs to technical field of phase-change energy storage, and in particular to a kind of polymer matrix microcapsules of storing energy through phase change, and its preparation method is further disclosed.Polymer matrix phase-change microcapsule energy storage material of the present invention, it is 20 50 DEG C of paraffin as phase-change material using phase transition temperature, utilize interfacial polymerization, there is capsule wall to form core shell structure in its external sheath, the phase-change microcapsule material is in phase transition process, solid-liquid phase in version occurs for the phase-change material as kernel, the organic material film of its outer layer remains solid-state, therefore, gained phase-change microcapsule material will be always macroscopically solid particle, compared with conventional phase change material, improve stability, heat transfer property is enhanced, improves processability.
Description
Technical field
The invention belongs to technical field of phase-change energy storage, and in particular to a kind of polymer matrix phase-change microcapsule energy storage material
Material, and its preparation method is further disclosed.
Background technology
With 21st century electronics technology flourish, electronic equipment increasingly tend to miniaturization, it is highly integrated and
High-power, the heat density more and more higher of all kinds of electronic components, and with the further nervous and shortage of global energy, section
Energy, the R and D of energy storage technology have become one of important means for improving energy utilization rate.Heat accumulation and quick heat radiating into
An important factor for developing for microelectronic component and equipment and technology.Wherein, phase change energy storage technology is that solve energy supply and demand in the time
Spatially unmatched contradiction, for meeting the effective means of people's demand.In the research of phase change energy storage technology, phase transformation storage
The exploitation of energy material is most by of concern.
Phase-change material (PCM-Phase Change Material) is also known as phase-changing energy storage material, refer to be utilized its
States of matter absorbs the material of a large amount of heat energy for energy storage of (releasing) when changing, be that one kind can vary with temperature and change thing
Rationality matter and the material that can provide latent heat, it changes the process of physical property and is referred to as phase transition process, and at this moment phase-change material can be inhaled
Receive or discharge substantial amounts of latent heat, be a kind of extraordinary energy-saving and environment friendly performance carrier.Phase-change material is sharp in phase transition process
With solar energy or the useless complementary energy energy storage of environment and temperature is adjusted, can be repeatedly used for a long time, in energy-conservation energy storage, Building wood
The fields such as material, weaving, Aero-Space and military affairs have important application prospect.
Phase-change temperature control refers to be stored using the phase transition process of phase-change material or discharged heat, so as to realize object temperature
Control process.Phase-change material can be largely classified into solid-solid phase-change and solid-liquid phase change, wherein solid-liquid phase change material by phase transition forms
It is big with energy storage density, the advantages that thermal energy storage process approximately constant temperature, Volume Changes are small, process is easy to control, it is most widely used at present
Phase-change material.Phase-change temperature control and Heat Conduction Material are applied in microelectronic component and equipment, utilize the solid-liquid of phase-change material
Phase transformation potential stores the heat-storage technology of heat energy, has that energy storage density is big, the advantage such as storage-exothermic process approximation isothermal, Ke Yiyan
The usage time of long electronic device and equipment, meet that electronic device is higher, the faster speed of service；And whole temperature control process is conveniently
It is easy to control, it is widely studied and applies.
Because solid-liquid phase change material is mutually changed into liquid phase after melting, there is certain mobility, and easily and ambient substance
Blend, be restricted in actual applications, need to be stabilized and could use in various occasions when typically using.Cause
This, how the key of heat-storage technology research is in addition to obtaining high performance phase-change heat-storage material, it is also necessary to it is stable to improve its application
Performance.In recent years, many phase-change thermal storage composites are studied and are reported in succession, and towards obtain more high thermal conductivity composite wood
The direction of material is developed.
The content of the invention
Therefore, the technical problems to be solved by the invention are to provide a kind of polymer matrix phase-change microcapsule energy storage material,
And its preparation method is further disclosed.
In order to solve the above technical problems, a kind of polymer matrix phase-change microcapsule energy storage material of the present invention, the storage
The preparing raw material of energy material includes：Phase-change microcapsule 15-25 parts by weight, polymeric matrix material 15-25 parts by weight, heat filling
50-100 parts by weight；
The phase-change microcapsule is the core shell structure using high-molecular organic material as capsule wall using phase-change material as core.
The preparing raw material of the energy storage material includes：The parts by weight of phase-change microcapsule 20, the parts by weight of polymeric matrix material 20,
The parts by weight of heat filling 75.
The phase-change material is paraffin；The basic phase changing resin is the polyester that number-average molecular weight Mn is 30000-40000
Resin.
The polyester resin is selected from polyethylene glycol adipate, poly adipate succinic acid ester, polyethylene glycol sebacate, poly-
Decanedioic acid butanediol ester, polyethylene terephthalate, polybutylene terephthalate (PBT), poly- M-phthalic acid ethylene glycol
Ester, poly- M-phthalic acid butanediol ester；
The polyester resin is respectively by ethylene glycol and/or butanediol, with adipic acid, decanedioic acid, terephthalic acid (TPA), isophthalic
At least one of dioctyl phthalate is polymerized, and its melting range is 60-80 DEG C；
The paraffin is the mixture of solid phase paraffins and liquid phase paraffin, 20-50 DEG C of its phase transition temperature, the phase of the paraffin
Temperature can be obtained by adjusting the ratio of atoleine and solid paraffin.
The heat filling includes the graphite of 30-70 parts by weight and the aluminum nitride ceramic of 20-30 parts by weight.
Preferably, the particle diameter of the aluminum nitride ceramic is 10nm-20 μm.
The capsule wall is that 4- diisocyanate and ethylenediamine are polymerized monomer, in water as polymerisation medium with Toluene-2,4-diisocyanate
In the presence of, with OPEO be emulsifying agent through ureaformaldehyde material made from interfacial polymerization.
The invention also discloses a kind of method for preparing described polymer matrix phase-change microcapsule energy storage material, including it is as follows
Step：
(1) under inert gas shielding, a selected amount of polyester matrix material is taken, is heated to molten state, and adds the phase
Become microcapsules, mix；
(2) a selected amount of heat filling is added, in 60-150 DEG C of mixing, that is, obtains required polymer matrix phase-change accumulation energy
Material.
The step of also including preparing the phase-change microcapsule before the step (1), specifically include：The phase-change material is taken to add
Heat is added into the polymerisation medium and mixed to molten state, and adds the emulsifying agent, and high-speed stirred is by the phase-change material point
Dissipate into tiny emulsion droplets；Subsequent regulation system temperature adds the polymerized monomer and carries out interfacial polymerization cladding to 70-80 DEG C,
Obtain the phase-change microcapsule.
The phase-change material, polymerized monomer, the mass ratio of emulsifying agent and polymerisation medium are 2:1-1.5:0.15-3:10, and
It is preferred that 2：1.15：5：10.
The invention also discloses a kind of polymer matrix phase-change microcapsule energy storage sheet material, by the described micro- glue of polymer matrix phase transformation
Capsule energy storage material is made.
The thickness of the sheet material is 0.01-3mm.Being prepared as of the polymer matrix phase-change accumulation energy sheet material uses prior art
It is prepared by general rolling process or pressure sintering.
The invention also discloses described polymer matrix phase-change microcapsule energy storage material be used for prepare microelectronic component and
The purposes of equipment.
Polymer matrix phase-change microcapsule energy storage material of the present invention, it is 20-50 DEG C of paraffin as phase transformation using phase transition temperature
Material, using interfacial polymerization, there is capsule wall to form core shell structure in its external sheath, the phase-change microcapsule material is in phase
During change, solid-liquid phase in version occurs for the phase-change material as kernel, and the organic material film of its outer layer remains solid-state,
Therefore, gained phase-change microcapsule material will be always macroscopically solid particle, compared with conventional phase change material, improve stabilization
Property, heat transfer property is enhanced, improves processability.
Polymer matrix phase-change microcapsule energy storage material of the present invention, on the basis of phase-change microcapsule, add sheet stone
Ink and aluminium nitride can reach more than 30W/ (K.m) as highly heat-conductive material, the thermal conductivity factor highest of gained energy storage material, be made
Phase-changing energy storage material quickly the heat in system can be passed to away, it is rapid to absorb and conduction electronic component is transported at a high speed
Heat caused by row, so as to protect the normal operation of electronic component, available for microelectronic components such as mobile phone, computer, LED and
Electronic apparatus application field.
Energy storage material of the present invention is from high molecular weight polyester resins as polymeric matrix material, the polyester resin
Because excellent performance is widely used in weaving, pack and the field base engineering plastics such as film are applied to the neck such as electronic apparatus
Domain.Mechanical property, electrical property and the filming performance of energy storage material comprehensive utilization polyester resin of the present invention, obtained energy storage material
Material can be used as energy storage sheet material, further widen the application field of the energy storage material.
Embodiment
The phase-change microcapsule of embodiment 1
Take atoleine 10g solid paraffins 10g to be heated to molten state, and add and disperse to mix into 100g water, then add
Enter 30g OPEO emulsifying agents to be emulsified, the paraffin is dispersed into tiny breast by (2000r/min) stirring at a high speed
Drop；Subsequent regulation system temperature adds 1.5g Toluene-2,4-diisocyanates, 4- diisocyanate and 10g ethylenediamines to 70-80 DEG C, carries out
Interfacial polymerization coats, and obtains the phase-change microcapsule.
After testing, gained Microcapsules Size is 3-4 microns, and the energy storage value of gained microcapsules is 180-200J/g.
Embodiment 2
Take atoleine 5g solid paraffins 15g to be heated to molten state, and add and disperse to mix into 100g water, and add
1.5g OPEO emulsifying agents are emulsified, and the paraffin is dispersed into tiny emulsion droplets by high-speed stirred；Then adjust
System temperature is saved to 70-80 DEG C, and adds 1.5g Toluene-2,4-diisocyanates, 4- diisocyanate and 10g ethylenediamines, carries out interfacial polymerization bag
Cover, obtain the phase-change microcapsule.
After testing, gained Microcapsules Size is 3-4 microns, and the energy storage value of gained microcapsules is 180-200J/g.
Embodiment 3
Take atoleine 10g solid paraffins 10g to be heated to molten state, and add and disperse to mix into 100g water, and add
5g OPEO emulsifying agents are emulsified, and the paraffin is dispersed into tiny emulsion droplets by high-speed stirred；Then regulation
System temperature adds 1g Toluene-2,4-diisocyanates, 4- diisocyanate and 9g ethylenediamines to 70-80 DEG C, carries out interfacial polymerization cladding, obtains
The phase-change microcapsule.
After testing, gained Microcapsules Size is 3-4 microns, and the energy storage value of gained microcapsules is 180-200J/g.
Embodiment 4
Take atoleine 5g solid paraffins 15g to be heated to molten state, and add and disperse to mix into 100g water, and add
10g OPEO emulsifying agents are emulsified, and the paraffin is dispersed into tiny emulsion droplets by high-speed stirred；Then regulation
System temperature adds 3g Toluene-2,4-diisocyanates, 4- diisocyanate and 12g ethylenediamines to 70-80 DEG C, carries out interfacial polymerization cladding, obtains
To the phase-change microcapsule.
After testing, gained Microcapsules Size is 3-4 microns, and the energy storage value of gained microcapsules is 180-200J/g.
Embodiment 5
The preparing raw material of phase-change microcapsule energy storage material includes described in the present embodiment：Polyethylene terephthalate, (number
Average molecular weight is 30000-40000g/mol, similarly hereinafter) phase-change microcapsule 15g, flake graphite 70g, nitridation is made in 15g, embodiment 1
Alumina particles (particle diameter is 0.001-10 μm, similarly hereinafter) 20g.
The preparation method of polymer matrix phase-change microcapsule energy storage material described in the present embodiment, comprises the following steps：
(1) in inert gas (N2) under protection, take a selected amount of polyester resin to be heated to molten state, and add selected
The phase-change microcapsule of amount, and the two is mixed；
(2) a selected amount of graphite and aluminum nitride particle are added, heats and mixes in 60-70 DEG C, that is, is obtained required poly-
Compound base phase-change microcapsule energy storage material.
Embodiment 6
The preparing raw material of phase-change microcapsule energy storage material includes described in the present embodiment：Polybutylene terephthalate (PBT) (number
Average molecular weight is 30000-40000g/mol, similarly hereinafter) phase-change microcapsule 25g, flake graphite 30g, nitridation is made in 25g, embodiment 2
Alumina particles 30g.
The preparation method of polymer matrix phase-change microcapsule energy storage material described in the present embodiment, comprises the following steps：
(1) in inert gas (N2) under protection, take a selected amount of polyester resin to be heated to molten state, and add selected
The phase-change microcapsule of amount, and the two is mixed；
(2) a selected amount of graphite and aluminum nitride particle are added, heats and mixes in 140-150 DEG C, that is, obtain required
Polymer matrix phase-change microcapsule energy storage material.
Embodiment 7
The preparing raw material of phase-change microcapsule energy storage material includes described in the present embodiment：Polyethylene glycol adipate 20g, implement
Phase-change microcapsule 20g, flake graphite 50g, aluminum nitride particle 25g is made in example 3.
The preparation method of polymer matrix phase-change microcapsule energy storage material described in the present embodiment, comprises the following steps：
(1) in inert gas (N2) under protection, take a selected amount of polyester resin to be heated to molten state, and add selected
The phase-change microcapsule of amount, and the two is mixed；
(2) a selected amount of graphite and aluminum nitride particle are added, heats and mixes in 80-90 DEG C, that is, is obtained required poly-
Compound base phase-change microcapsule energy storage material.
Embodiment 8
The preparing raw material of phase-changing energy storage material described in the present embodiment includes：Polydiethylene glycol sebacate 15g, embodiment 4 are made
Obtain phase-change microcapsule 25g, flake graphite 50g, aluminum nitride particle 25g.
The preparation method of polymer matrix phase-changing energy storage material described in the present embodiment, comprises the following steps：
(1) in inert gas (N2) under protection, take a selected amount of polyester resin to be heated to molten state, and add selected
The phase-change microcapsule of amount, and the two is mixed；
(2) a selected amount of graphite and aluminum nitride particle are added, heats and mixes in 100-110 DEG C, that is, obtain required
Polymer matrix phase-change microcapsule energy storage material.
Embodiment 9
The preparing raw material of phase-change microcapsule energy storage material includes described in the present embodiment：Polyethylene glycol isophthalate 25g,
Phase-change microcapsule 15g, flake graphite 30g, aluminum nitride particle 30g is made in embodiment 5.
The preparation method of polymer matrix phase-change microcapsule energy storage material described in the present embodiment, comprises the following steps：
(1) in inert gas (N2) under protection, take a selected amount of polyester resin to be heated to molten state, and add selected
The phase-change microcapsule of amount, and the two is mixed；
(2) a selected amount of graphite and aluminum nitride particle are added, heats and mixes in 70-80 DEG C, that is, is obtained required poly-
Compound base phase-change microcapsule energy storage material.
Embodiment 10
Polymer matrix phase-change accumulation energy sheet material described in the present embodiment, as the energy storage material described in embodiment 5 through conventional hot press method
Prepare, the thickness of the sheet material is 0.01-3mm.
Embodiment 11
Polymer matrix phase-change accumulation energy sheet material described in the present embodiment, as the energy storage material described in embodiment 6 through conventional rolling process
Prepare, the thickness of the sheet material is 0.01-3mm.
Embodiment 12
Polymer matrix phase-change accumulation energy sheet material described in the present embodiment, as the energy storage material described in embodiment 7 through conventional hot press method
Prepare, the thickness of the sheet material is 0.01-3mm.
Embodiment 13
Polymer matrix phase-change accumulation energy sheet material described in the present embodiment, as the energy storage material described in embodiment 8 through conventional rolling process
Prepare, the thickness of the sheet material is 0.01-3mm.
Embodiment 14
Polymer matrix phase-change accumulation energy sheet material described in the present embodiment, as the energy storage material described in embodiment 9 through conventional hot press method
Prepare, the thickness of the sheet material is 0.01-3mm.
Comparative example
The preparing raw material of phase-change microcapsule energy storage material includes described in the present embodiment：Phase-change microcapsule is made in embodiment 1
40g, expanded graphite 50g, aluminum nitride particle 25g.Specific synthetic method is same as Example 5.
Experimental example
The performance that energy storage material is made in above-described embodiment 5-6 and comparative example is detected, and is recorded in table 1 below, together
The general pressure sintering of Shi Liyong prior arts carries out hot-pressing processing to above-described embodiment 6-7 and the comparative example energy storage material obtained, sees
It is working sheet shaping situation to examine it.
The results of property of the energy storage material of table 1
It was found from upper table data, phase-change microcapsule energy storage material of the present invention, using paraffin as phase-change material, with interface
Polymerization is coated in high polymer material capsule wall, formed core shell structure, avoid paraffin in liquid-solid phase change by
In its mobility easily blends with ambient substance the problem of；The energy storage material is aided with the work of polymeric matrix material simultaneously
With obtained energy storage material can be processed into the use of energy storage sheet material, further expand the scope of application of the energy storage material.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (11)
1. a kind of polymer matrix phase-change microcapsule energy storage material, it is characterised in that the preparing raw material of the energy storage material includes：Phase
Become microcapsules 15-25 parts by weight, polymeric matrix material 15-25 parts by weight, heat filling 50-100 parts by weight；
The phase-change microcapsule is the core shell structure using high-molecular organic material as capsule wall using phase-change material as core.
2. polymer matrix phase-change microcapsule energy storage material according to claim 1, it is characterised in that the energy storage material
Preparing raw material includes：The parts by weight of phase-change microcapsule 20, the parts by weight of polymeric matrix material 20, the parts by weight of heat filling 75.
3. polymer matrix phase-change microcapsule energy storage material according to claim 1 or 2, it is characterised in that the phase transformation material
Expect for paraffin；The polymeric matrix material is the polyester resin that number-average molecular weight Mn is 30000-40000.
4. polymer matrix phase-change microcapsule energy storage material according to claim 3, it is characterised in that：
The polyester resin is selected from polyethylene glycol adipate, poly adipate succinic acid ester, polyethylene glycol sebacate, the poly- last of the ten Heavenly stems two
It is sour butanediol ester, polyethylene terephthalate, polybutylene terephthalate (PBT), polyethylene glycol isophthalate, poly-
M-phthalic acid butanediol ester；
The paraffin is the mixture of solid phase paraffins and liquid phase paraffin, and its phase transition temperature is 20-50 DEG C.
5. the polymer matrix phase-change microcapsule energy storage material according to claim any one of 1-4, it is characterised in that described to lead
Hot filler includes the flake graphite of 30-70 parts by weight and the aluminum nitride ceramic of 20-30 parts by weight.
6. the polymer matrix phase-change microcapsule energy storage material according to claim any one of 1-5, it is characterised in that the glue
Cyst wall is that 4- diisocyanate and ethylenediamine are polymerized monomer, in the presence of water is as polymerisation medium, with octyl phenol with Toluene-2,4-diisocyanate
APEO is emulsifying agent through ureaformaldehyde material made from interfacial polymerization.
7. a kind of method for preparing the polymer matrix phase-change microcapsule energy storage material described in claim any one of 1-6, its feature
It is, comprises the following steps：
(1) under inert gas shielding, a selected amount of polymeric matrix material is taken, is heated to molten state, and described in addition
Phase-change microcapsule, mix；
(2) a selected amount of heat filling is added, in 60-150 DEG C of mixing, that is, obtains required polymer matrix phase-change accumulation energy material
Material.
8. the method for the polymer matrix phase-change microcapsule energy storage material described in preparation according to claim 7, its feature exist
In the step (1) is preceding also including the step of preparing the phase-change microcapsule, specifically includes：The phase-change material is taken to be heated to
Molten state, add into the polymerisation medium and mix, and add the emulsifying agent, the phase-change material is dispersed into by high-speed stirred
Tiny emulsion droplets；Subsequent regulation system temperature adds the polymerized monomer and carries out interfacial polymerization cladding to 70-80 DEG C, obtains
The phase-change microcapsule.
9. a kind of polymer matrix phase-change microcapsule energy storage sheet material, it is characterised in that as the polymerization described in claim any one of 1-6
Thing base phase-change microcapsule energy storage material is made.
10. polymer matrix phase-change microcapsule energy storage sheet material according to claim 9, it is characterised in that the thickness of the sheet material
Spend for 0.01-3mm.
11. the polymer matrix phase-change microcapsule energy storage material described in claim any one of 1-6 is used to prepare microelectronic component
And the purposes of equipment.
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| CN111647116A (en) * | 2020-06-19 | 2020-09-11 | 西南科技大学 | Preparation method of heat-conducting elastic shape-stabilized phase change energy storage material |
| CN113265209A (en) * | 2021-05-25 | 2021-08-17 | 广东力王新材料有限公司 | Phase change energy storage adhesive tape and preparation method thereof |
| CN115559020A (en) * | 2022-10-12 | 2023-01-03 | 青岛尼希米生物科技有限公司 | Phase-change temperature-regulating fiber and preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300425A (en) * | 2018-03-01 | 2018-07-20 | 苏州维洛克电子科技有限公司 | The preparation method of polyester sheet containing accumulation energy microcapsule |
| CN111647116A (en) * | 2020-06-19 | 2020-09-11 | 西南科技大学 | Preparation method of heat-conducting elastic shape-stabilized phase change energy storage material |
| CN111647116B (en) * | 2020-06-19 | 2021-01-26 | 西南科技大学 | Preparation method of heat-conducting elastic shape-stabilized phase change energy storage material |
| CN113265209A (en) * | 2021-05-25 | 2021-08-17 | 广东力王新材料有限公司 | Phase change energy storage adhesive tape and preparation method thereof |
| CN113265209B (en) * | 2021-05-25 | 2022-12-09 | 广东力王新材料有限公司 | Phase change energy storage adhesive tape and preparation method thereof |
| CN115559020A (en) * | 2022-10-12 | 2023-01-03 | 青岛尼希米生物科技有限公司 | Phase-change temperature-regulating fiber and preparation method and application thereof |
| CN115559020B (en) * | 2022-10-12 | 2024-04-12 | 青岛尼希米生物科技有限公司 | Phase-change temperature-regulating fiber and preparation method and application thereof |
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