CN108122869A - A kind of phase-change accumulation energy Heat Conduction Material and preparation method and application - Google Patents
A kind of phase-change accumulation energy Heat Conduction Material and preparation method and application Download PDFInfo
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Abstract
The invention belongs to technical field of phase-change energy storage, and in particular to a kind of phase-change accumulation energy Heat Conduction Material, and its preparation method and application are further disclosed.Phase-change accumulation energy Heat Conduction Material of the present invention, the heat conduction particle and Phase change energy storage microcapsule material is added on the basis of matrix resin to be handled for filler, heat conduction with phase change heat accumulating obtained has preferable heat conduction and energy-storage property, and utilize the performance of phase-change material, enable and shield heat away that the heat conduction heat accumulating generates electronic component high-speed cruising and store, it is made to be more suitable for the application of microelectronic component and electronic device field.
Description
Technical field
The invention belongs to technical field of phase-change energy storage, and in particular to a kind of phase-change accumulation energy Heat Conduction Material, and further
Open its preparation method and application.
Background technology
Advocate green energy resource in global range energetically in recent years, the development of new-energy automobile is subject to national governments to prop up energetically
It holds, the development of power battery is also abnormal hot.Power battery refers to the battery that power is provided for transport facility, is usually phase
For providing the compact battery of energy for portable electric appts.It can be divided into plumbic acid according to the difference of cell reaction principle to move
Power battery, Ni-MH power cell, lithium-ion-power cell etc..
Electrokinetic cell system has high-energy (EV), high power (HEV), high-energy density, high magnification partial state of charge
Under the recycling (HEV) of (HRPSOC), operating temperature range wide (30-65 DEG C), service life length (5-10) and safely
Reliable advantage.
Electrokinetic cell system is mainly used in：Automobile and motorcycle industry are starting ignition and the vehicle electronics of engine
The use of equipment provides electric energy；Industrial electrical systems provide switching current for power regulation station and for powerplant module, are set to be public
It applies and stand-by power supply and communication electric source is provided；And electric vehicle and electric bicycle industry, to substitute gasoline and diesel oil,
As electric vehicle or the driving dynamics power supply of electric bicycle.
Current common electrokinetic cell system is formed in groups by numerous batteries, but since the technology of current battery is limited to,
The use of power battery is affected by temperature factor and causes the factor of hydraulic performance decline more apparent, such as：Battery charge and discharge under low temperature condition
Capacitance performance substantially reduces；High temperature accelerate electrolyte volatilization, pole piece aging and reduce the service life of battery；In excess
Under the failure states such as charging, internal short-circuit, it is out of control that the temperature of battery can raise concurrent heat.Therefore, how power battery is selected
Heat management mode to improve the key issue that the performance of battery is power battery.The heat management mode of current battery is according to application
The difference in field, selection mode are also had nothing in common with each other, and heat accumulation and rapid cooling become microelectronic component and equipment and technology develops
Key factor.Wherein, phase change energy storage technology is to solve energy supply and demand unmatched contradiction over time and space, for meeting people
Demand effective means.In the research of phase change energy storage technology, the exploitation of phase-changing energy storage 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 thermal energy of (releasing) for energy storage when changing, be a kind of can vary with temperature and change object
Rationality matter can simultaneously provide the substance of latent heat, and the process of transformation physical property is known as phase transition process, and at this moment phase-change material can be inhaled
It receives or discharges 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
It is given up with solar energy or environment and complementary energy energy storage and adjusts temperature, can repeatedly used for a long time, in energy saving energy storage, Building wood
The fields such as material, weaving, aerospace and military affairs have important application prospect.Smelting plays in the thermal management of power battery
Important role.
Phase-change temperature control refers to be stored using the phase transition process of phase-change material or discharged heat, so as to fulfill object temperature
Control process.Phase-change material can be mainly divided into solid-solid phase-change and solid-liquid phase change, wherein solid-liquid phase change material by phase transition forms
Have many advantages, such as that energy storage density is big, thermal energy storage process approximately constant temperature, volume change are small, process is easy to control, are 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 solves the technology of power battery thermal management, has that energy storage density is big, and storage-exothermic process approximation isothermal etc. is excellent
Gesture can extend the usage time of electronic device and equipment, meet electronic device higher, the faster speed of service；And entire control
Warm process facilitates easy to control, is widely studied and applies.
Since solid-liquid phase change material mutually becomes liquid phase after melting, there is certain mobility, and easily and ambient substance
It blends, is restricted in practical applications, need to be stabilized and could use in various occasions when generally 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 improve its application and stablize
Performance.In recent years, many phase-change thermal storage composite materials 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
For this purpose, the technical problems to be solved by the invention are to provide a kind of phase-change accumulation energy Heat Conduction Material, and it is further public
Open its preparation method and purposes.
In order to solve the above technical problems, a kind of microcapsules of storing energy through phase change of the present invention is used to prepare phase-change accumulation energy heat conduction
The application of material, the microcapsules of storing energy through phase change are using phase-change material as core, using high-molecular organic material as the core of capsule wall
Shell structure.
The invention also discloses a kind of phase-change accumulation energy Heat Conduction Material, the material includes matrix resin and filler；It is described
Filler includes heat conduction particle and microcapsules of storing energy through phase change；
The microcapsules of storing energy through phase change is using phase-change material as core, using high-molecular organic material as the nucleocapsid knot of capsule wall
Structure.
Preferably, the mass ratio of the heat conduction particle and microcapsules of storing energy through phase change is 1：10-10：1；
The mass ratio of the filler and described matrix resin is 1：10-10：1.
More preferably, described matrix resin is selected from least one of polyurethane, organosilicon, epoxy resin, rubber or silica gel；
The heat conduction particle is selected from least one of aluminium oxide, aluminium nitride, boron nitride particle；
The phase-change material is paraffin.
The grain size of the heat conduction particle is 10nm-20 μm；
The paraffin is solid phase paraffins and the mixture of liquid phase paraffin, and phase transition temperature is 20-50 DEG C.
The capsule wall is with Toluene-2,4-diisocyanate, and 4- diisocyanate and ethylenediamine are polymerized monomer, in water as polymerisation medium
In the presence of, with octyl phenol polyoxyethylene ether for emulsifier through ureaformaldehyde material made from interfacial polymerization.
The invention also discloses a kind of method for preparing the phase-change accumulation energy Heat Conduction Material, including by a selected amount of gas
Gel and the microcapsules of storing energy through phase change are scattered in the step in described matrix resin to get required phase-change accumulation energy heat conduction material
Material.
The method for preparing the phase-change accumulation energy Heat Conduction Material, further includes the step for preparing the microcapsules of storing energy through phase change
Suddenly, specifically include：The phase-change material is taken to be heated to molten state, adds in the mixing into the polymerisation medium, and adds in the breast
The phase-change material is dispersed into tiny emulsion droplets by agent, high-speed stirred；Subsequent regulation system temperature is added in 70-80 DEG C
The polymerized monomer carries out interfacial polymerization cladding, obtains the microcapsules of storing energy through phase change.
The phase-change material, polymerized monomer, the mass ratio of emulsifier 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 the phase-change accumulation energy Heat Conduction Materials to be used to prepare electrokinetic cell system heat-conducting buffer group
The purposes of part, the heat-conducting buffer component include heat-conducting buffer gasket, heat-conducting buffer film, heat-conducting buffer cotton piece.
The invention also discloses a kind of electrokinetic cell system heat-conducting buffer component, i.e., by the phase-change accumulation energy heat conduction material
Material is made.
Electrokinetic cell system heat-conducting buffer component, including heat-conducting buffer gasket, heat-conducting buffer film, heat-conducting buffer
Cotton piece.
It is described including taking the invention also discloses a kind of method for preparing the electrokinetic cell system heat-conducting buffer component
Phase-change accumulation energy Heat Conduction Material roller coat is squeezed out on release film, in room temperature or the step of be heating and curing to get.
Phase-change accumulation energy Heat Conduction Material of the present invention adds the heat conduction particle and phase transformation storage on the basis of matrix resin
Energy microencapsulation material is handled for filler, and heat conduction with phase change heat accumulating obtained has preferable heat conduction and energy-storage property, and
And utilize the performance of phase-change material so that the heat conduction heat accumulating can by heat that electronic component high-speed cruising generates every
It absolutely and stores, it is made to be more suitable for the application of microelectronic component and electronic device field.
More preferably, phase-change accumulation energy Heat Conduction Material of the present invention adds the phase-change material with the structure of microcapsules
Add, the microcapsules are coated through interfacial polymerization and are made, the phase-change microcapsule material is in phase transformation using phase-change material as kernel core
In the process, solid-liquid phase transition occurs for the phase-change material as kernel, and the organic material film of outer layer remains solid-state, because
This, 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, is more suitable for using phase transformation radiate being used.
Specific embodiment
1 phase-change microcapsule of embodiment
Atoleine 10g solid paraffins 10g is taken to be heated to molten state, and adds in and disperses mixing into 100g water, is then added
Enter 30g octyl phenol polyoxyethylene ether emulsifiers to be emulsified, the paraffin is dispersed into tiny breast by (2000r/min) stirring at a high speed
Drop；Subsequent regulation system temperature adds in 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.
2 phase-change microcapsule of embodiment
Atoleine 5g solid paraffins 15g is taken to be heated to molten state, and adds in and disperses mixing into 100g water, and is added in
1.5g octyl phenol polyoxyethylene ether emulsifiers 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 in 1.5g Toluene-2,4-diisocyanates, 4- diisocyanate and 10g ethylenediamines, carries out interfacial polymerization bag
It covers, 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.
3 phase-change microcapsule of embodiment
Atoleine 10g solid paraffins 10g is taken to be heated to molten state, and adds in and disperses mixing into 100g water, and is added in
5g octyl phenol polyoxyethylene ether emulsifiers are emulsified, and the paraffin is dispersed into tiny emulsion droplets by high-speed stirred；Then adjust
System temperature adds in 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.
4 phase-change microcapsule of embodiment
Atoleine 5g solid paraffins 15g is taken to be heated to molten state, and adds in and disperses mixing into 100g water, and is added in
10g octyl phenol polyoxyethylene ether emulsifiers are emulsified, and the paraffin is dispersed into tiny emulsion droplets by high-speed stirred；Then adjust
System temperature adds in 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.
5 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 1
Microcapsules of storing energy through phase change composition filler, specifically include：(grain size is for 100g polyurethane gles, 50g boron nitride ceramics powder
10nm-20 μm) and 50g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material, includes the following steps described in the present embodiment：Take the heat conduction particle and
Microcapsules of storing energy through phase change be dispersed in described matrix resin to get.
6 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 2
Microcapsules of storing energy through phase change composition filler, specifically include：100g silicon gels, 50g aluminum nitride particles (grain size 10nm-
20 μm) and 50g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material, includes the following steps described in the present embodiment：Take the heat conduction particle and
Microcapsules of storing energy through phase change be dispersed in described matrix resin to get.
7 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 3
Microcapsules of storing energy through phase change composition filler, specifically include：100g silicon gels, 25g alumina particles (grain size 10nm-
20 μm), 25g microcapsules of storing energy through phase change composition.
The preparation method of phase-change accumulation energy Heat Conduction Material, includes the following steps described in the present embodiment：Take the heat conduction particle and
Microcapsules of storing energy through phase change be dispersed in described matrix resin to get.
8 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 4
Microcapsules of storing energy through phase change composition filler, specifically include：(grain size is for 100g silicon gels, 75g boron nitride ceramics powder
10nm-20 μm), 75g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material, includes the following steps described in the present embodiment：Take the heat conduction Cray and
Microcapsules of storing energy through phase change be dispersed in described matrix resin to get.
9 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 1
Microcapsules of storing energy through phase change composition filler, specifically include：110g epoxy resin, 10g boron nitride ceramics powder (grain size 10nm-
20 μm), 100g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material is the same as embodiment 5 described in the present embodiment.
10 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 2
Microcapsules of storing energy through phase change composition filler, specifically include：(grain size is 10nm-20 μ for 110g rubber, 100g boron nitride ceramics powder
M), 10g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material is the same as embodiment 5 described in the present embodiment.
11 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 3
Microcapsules of storing energy through phase change composition filler, specifically include：(grain size is 10nm-20 μ for 500g polyurethane, 25g boron nitride ceramics powder
M), 25g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material is the same as embodiment 5 described in the present embodiment.
12 phase-change accumulation energy Heat Conduction Material of embodiment
Phase-change accumulation energy Heat Conduction Material described in the present embodiment is prepared including matrix resin and by heat conduction particle and embodiment 4
Microcapsules of storing energy through phase change composition filler, specifically include：(grain size is 10nm-20 μ for 50g organosilicons, 250g boron nitride ceramics powder
M), 250g microcapsules of storing energy through phase change.
The preparation method of phase-change accumulation energy Heat Conduction Material is the same as embodiment 5 described in the present embodiment.
13 energy storage heat-conducting buffer pad of embodiment
The phase-change accumulation energy heat-conducting buffer material system as described in embodiment 5 with heat-conducting buffer pad of power battery described in the present embodiment
, i.e., phase-change accumulation energy Heat Conduction Material obtained in Example 5 pours into roll coater or extruder, and roller coat or extrusion are in release film
On, and in room temperature pressurization or 50-80 DEG C of hot pressing fixation to get.
The present embodiment obtained heat conduction heat accumulation pad product carries out performance detection, and thermal conductivity is 1.2W/ (mK), energy storage
It measures as 40J/g.
14 energy storage heat-conducting buffer pad of embodiment
With heat-conducting buffer pad, the phase-change accumulation energy Heat Conduction Material as described in embodiment 6 is made power battery described in the present embodiment, i.e.,
Phase-change accumulation energy Heat Conduction Material obtained in Example 6, pours into roll coater or extruder, roller coat or squeezes out on release film, and
In room temperature pressurization or 50-80 DEG C of hot pressing fixation to get.
The present embodiment obtained heat conduction heat accumulation pad product carries out performance detection, and thermal conductivity is 1.6W/ (mK), energy storage
It measures as 41J/g.
15 energy storage heat-conducting buffer pad of embodiment
With heat-conducting buffer pad, the phase-change accumulation energy Heat Conduction Material as described in embodiment 7 is made power battery described in the present embodiment, i.e.,
Phase-change accumulation energy Heat Conduction Material obtained in Example 7, pours into roll coater or extruder, roller coat or squeezes out on release film, and
In room temperature pressurization or 50-80 DEG C of hot pressing fixation to get.
The present embodiment obtained heat conduction heat accumulation pad product carries out performance detection, and thermal conductivity is 0.5W/ (mK), energy storage
It measures as 19J/g.
16 energy storage heat-conducting buffer pad of embodiment
With heat-conducting buffer pad, the phase-change accumulation energy Heat Conduction Material as described in embodiment 8 is made power battery described in the present embodiment, i.e.,
Phase-change accumulation energy Heat Conduction Material obtained in Example 8, pours into roll coater or extruder, roller coat or squeezes out on release film, and
In room temperature pressurization or 50-80 DEG C of hot pressing fixation to get.
The present embodiment obtained heat conduction heat accumulation pad product carries out performance detection, and thermal conductivity is 1.3 (mK), energy storage capacity
For 45J/g.
17 heat-conducting buffer film of embodiment
With heat-conducting buffer film, the phase-change accumulation energy Heat Conduction Material as described in embodiment 8 is made power battery described in the present embodiment, i.e.,
Phase-change accumulation energy Heat Conduction Material obtained in Example 8, pours into roll coater, and roller coat is on release film, and in room temperature at least 1
When the heating of it or 50-80 DEG C 1-5 is small to get.
The present embodiment obtained heat conduction heat accumulation pad product carries out performance detection, and thermal conductivity is 1.3 (mK), energy storage capacity
For 45J/g.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.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 variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of microcapsules of storing energy through phase change is used to prepare the application of phase-change accumulation energy Heat Conduction Material, which is characterized in that the phase transformation storage
Energy microcapsules are using phase-change material as core, using high-molecular organic material as the nucleocapsid of capsule wall.
2. a kind of phase-change accumulation energy Heat Conduction Material, which is characterized in that the material includes matrix resin and filler；The filler
Including heat conduction particle and microcapsules of storing energy through phase change；
The microcapsules of storing energy through phase change is using phase-change material as core, using high-molecular organic material as the nucleocapsid of capsule wall.
3. phase-change accumulation energy Heat Conduction Material according to claim 2, it is characterised in that：
The mass ratio of the heat conduction particle and microcapsules of storing energy through phase change is 1：10-10：1；
The mass ratio of the filler and described matrix resin is 1：10-10：1.
4. the phase-change accumulation energy Heat Conduction Material according to Claims 2 or 3, which is characterized in that
Described matrix resin is selected from least one of polyurethane, organosilicon, epoxy resin, rubber or silica gel；
The heat conduction particle is selected from least one of aluminium oxide, aluminium nitride, boron nitride particle；
The phase-change material is paraffin.
5. according to claim 2-4 any one of them phase-change accumulation energy Heat Conduction Materials, which is characterized in that the capsule wall is with first
Benzene -2,4- diisocyanate and ethylenediamine are polymerized monomer, in the presence of water is as polymerisation medium, with octyl phenol polyoxyethylene ether
It is emulsifier through ureaformaldehyde material made from interfacial polymerization.
A kind of 6. method for preparing any one of the claim 2-5 phase-change accumulation energy Heat Conduction Materials, which is characterized in that including that will select
The quantitative heat conduction particle and the microcapsules of storing energy through phase change are scattered in the step in described matrix resin to get required phase
Become energy storage Heat Conduction Material.
7. the method according to claim 6 for preparing the phase-change accumulation energy Heat Conduction Material, which is characterized in that further include preparation
The step of microcapsules of storing energy through phase change, specifically includes：The phase-change material is taken to be heated to molten state, adds in the polymerization and is situated between
Mixing in matter, and the emulsifier is added in, the phase-change material is dispersed into tiny emulsion droplets by high-speed stirred；Subsequent regulation system
Temperature adds in the polymerized monomer and carries out interfacial polymerization cladding to 70-80 DEG C, obtains the microcapsules of storing energy through phase change.
8. claim 2-5 any one of them phase-change accumulation energy Heat Conduction Materials are used to prepare electrokinetic cell system heat-conducting buffer group
The purposes of part, the heat-conducting buffer component include heat-conducting buffer gasket, heat-conducting buffer film, heat-conducting buffer cotton piece.
9. a kind of electrokinetic cell system heat-conducting buffer component, which is characterized in that by claim 2-5 any one of them phase transformations
Energy storage Heat Conduction Material is made.
A kind of 10. method for preparing electrokinetic cell system heat-conducting buffer component described in claim 9, which is characterized in that including
Take the phase-change accumulation energy Heat Conduction Material roller coat or squeeze out on release film, in room temperature or the step of be heating and curing to get.
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| CN110551486A (en) * | 2019-08-05 | 2019-12-10 | 苏州热象纳米科技有限公司 | Preparation method of aerogel-containing phase-change film |
| CN111312675A (en) * | 2020-04-09 | 2020-06-19 | 清华大学深圳国际研究生院 | Heat transfer and heat storage sheet, preparation method thereof and heat dissipation structure |
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