CN106497522A - A kind of foam diamond strengthens paraffin wax phase change energy storage material and preparation method - Google Patents
A kind of foam diamond strengthens paraffin wax phase change energy storage material and preparation method Download PDFInfo
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- CN106497522A CN106497522A CN201610919637.XA CN201610919637A CN106497522A CN 106497522 A CN106497522 A CN 106497522A CN 201610919637 A CN201610919637 A CN 201610919637A CN 106497522 A CN106497522 A CN 106497522A
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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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
- C23C16/27—Diamond only
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
- C23C16/27—Diamond only
- C23C16/271—Diamond only using hot filaments
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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Abstract
A kind of foam diamond strengthens paraffin wax phase change energy storage material and preparation method, and the phase-changing energy storage material includes foam framework, paraffin, fire retardant and the paraffin backing material of surface peening；The one kind of foam framework surface peening layer choosing from diamond film, Graphene wall, CNT wall, graphene coated diamond film, CNT cladding diamond film, carbon nano tube/graphene cladding diamond film.Present configuration is reasonable, heat conductivity is high, stable performance, by surface modification Graphene or/and CNT, further increases the heat conductivility of foam framework, effectively lifts the heat transference efficiency of existing energy storage material.The good chemical inertness of diamond, corrosion of the metallic framework in phase-change material can be prevented effectively from, organic phase-changing energy storage material is not only suitable for, and has extremely strong compatibility and adaptability with inorganic hydrated salt class phase transformation material, be suitable to high temperature, the application of high-power, high energy consumption field.
Description
Technical field
The invention discloses a kind of foam diamond strengthens paraffin wax phase change energy storage material and preparation method；Belong to energy storage material
Technical field.
Background technology
With the continuous development of World Economics, energy shortage problem seems increasingly serious, the storage of regenerative resource, exploitation
The emphasis of World Focusing is increasingly becoming with utilization.Energy storage not only can be effectively reduced the dissipation of gross energy, improve whole
The Performance And Reliability of system, and unnecessary waste of fuel can be reduced, sustainable development of the environment with energy is extremely closed
Key.Among numerous energy storage methods, phase-change material is received significant attention, phase as a kind of Thermal energy storage material of clean and effective
Become material excellent using constant phase transition temperature during its solid-liquid or solid-solid phase-change and high latent heat density etc. in use
Point realizes the storage and utilization of energy, thus in the side such as Solar use, industrial afterheat recovery, building energy conservation and power peak regulation
Mask has broad application prospects, and is energy science and an active study hotspot in material science.
Solid-liquid phase change material is generally divided into organic and mineral-type.What organic phase-change material was conventional is paraffin, organic
Phase-change material is typically less prone to supercool and phenomenon of phase separation, and the thermochemical property of material is stable, and corrosivity are little, small toxicity and into
This is than less expensive.Mineral-type phase-change material most typically crystalline hydrate salt, crystalline hydrate salt be a kind of typical in low-temperature phase
Change energy-storage material, when the temperature increases, crystalline hydrate salt abjection water of crystallization makes salt dissolving and heat absorbing.
But no matter organic or mineral-type phase-change accumulation energy, its sizable application still Problems：Almost all of phase transformation
Material all has that thermal conductivity is low, the heat transfer property in phase transition process is poor.Find suitable reinforced transformation heat exchange mode into
For the significant challenge that researchers face.In general, the method for improving phase-change heat-storage material heat conductivity mainly includes two kinds:
One is in heat exchanger to extend heat exchange area using metal fin structure or honeycomb texture；Two are added in phase-change heat-storage material
Increase Heat Conduction Material, such as high-thermal conductive metal granule, becket, porous metal material and porous metal foam filler etc..These sides
Although method can improve the heat conductivility of phase-change material, the weight and volume of heat reservoir, heat accumulation system is also significantly increased
The storage density of system is significantly reduced, and partial phase change material has serious corrosivity to metal material, therefore limits which
Practical application.Therefore, prepare that heat conductivity is higher, the New-type phase change heat accumulating of storage density bigger and stable performance,
Become the key of heat-storage technology practical application.With the development of CVD technology, foam diamond is prepared and is possibly realized, will be high-quality
Amount, the foam diamond of high thermal conductivity replace traditional foam metal skeleton as the heat filling of phase-changing energy storage material, will
Its heat conductivility and heat transfer efficiency can be greatly improved, and new opportunity is provided for novel high-power phase-changing energy storage material application.
Content of the invention
It is an object of the invention to overcoming the deficiency of prior art and providing that a kind of rational in infrastructure, heat conductivity is high, performance
Stable foam diamond strengthens paraffin wax phase change energy storage material and preparation method.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, and the phase-changing energy storage material includes surface peening
Foam framework, paraffin, fire retardant and paraffin backing material, in the phase transformation storage being made up of paraffin, fire retardant, paraffin backing material
The foam framework of surface peening is inlaid with energy material matrix；The foam framework of the surface peening includes foam framework, surface
Strengthening layer；The surface peening layer choosing is received from diamond film, Graphene wall, CNT wall, graphene coated diamond film, carbon
One kind in mitron cladding diamond film, carbon nano tube/graphene cladding diamond film.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, and the foam framework volume of surface peening accounts for phase transformation
The 1%-80% of energy storage material matrix material.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, is provided between foam framework and surface peening layer
Modified layer.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, described modified layer be silicon, niobium, tantalum, nickel,
One or more in platinum, copper, tungsten, molybdenum, titanium, silver, chromium compound；The modified layer method of modifying includes plating, chemical plating, steaming
Plating, magnetron sputtering, chemical vapor deposition, one kind in physical gas-phase deposite method or compound.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, and the foam aperture of foam framework is 0.01-
10mm, percent opening 20-99.9%, foam cells are uniformly distributed or random distribution；Foam framework is planar structure or 3 D stereo
Structure.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, and the foam framework is selected from foam metal bone
One kind in frame, foamed ceramics skeleton or foam carbon skeleton；The foam metal skeleton selected from nickel foam, foam copper, titanium foam,
One kind in foam cobalt, foam tungsten, foamed molybdenum, foam chromium, foam iron-nickel, foamed aluminium；The foamed ceramics skeleton is selected from foam
A12O3, foam ZrO2, foam SiC, foam Si3N4, foam BN, foam B4C, foam AlN, foam WC, foam Cr7C3In one
Kind.
A kind of foam diamond of the present invention strengthens paraffin wax phase change energy storage material, paraffin in phase-changing energy storage material matrix, fire-retardant
Agent is consisted of with the weight portion of paraffin backing material：
60～80 parts of paraffin, fire retardant 10-30 parts, paraffin backing material 10-20 parts；The fire retardant is selected from tetrachlorobisphenol
One kind in A, penta cyclodecane of perchloro-, PBDEs class, brominated bisphenol-A class, bromo high polymer；The paraffin backing material bag
Include the one kind in high density polyethylene (HDPE), polypropylene.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, comprises the steps：
The first step：By heating paraffin to 100-180 DEG C, after fully melting, paraffin backing material and fire retardant are added which
In, stirring so as to fully dissolve, obtain phase-changing energy storage material matrix liquation；
Second step：The foam framework of surface peening is put in phase-changing energy storage material matrix liquation, is put into true together
In the tube furnace of null device, furnace temperature 90-180 DEG C is set, is taken out vacuum in stove and, to below 10Pa, composite is exhausted to nothing
Substantially bubble is emerged, then to the one kind being passed through in stove in air, nitrogen, argon, after insulation 10-180 minutes, furnace cooling,
Obtain foam diamond and strengthen paraffin composite.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, the foam framework of surface peening
The preparation method of surface diamond film is：On the rotation base station that foam framework is placed in chemical vapor deposition stove；Or to foam
On the rotation base station being placed in chemical vapor deposition stove again after skeleton surface grafting seed crystal, diamond layer deposition is then carried out, adjusted
The rotating speed of gas circuit distribution, heated filament arrangement and rotation base station in section stove, carbonaceous gas account for all gas mass flow percentage ratio in stove
For 0.5-10.0%；Growth temperature is 600-1000 DEG C, grows air pressure 103-104Pa；Obtain foam framework surfaces externally and internally to be greatly
Granule micron order diamond film layer.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, and foam framework is placed in chemical gas
On rotation base station in phase cvd furnace, foam framework both sides arrange heated filament, heated filament away from foam framework distance be 5-12mm, heated filament
Spacing is 5-20mm；The heated filament is taenidium or raw silk rings；, be uniformly arranged multiple air inlet/outlets respectively up and down in foam framework,
It is 5-100r/min to control to rotate base station autorotation speed, obtain foam framework surfaces externally and internally diamond thicknesses of layers be 0.5 μm～
1000 μm, in film layer, crystallite dimension is 1 μm -200 μm.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, graphene coated diamond
Film, CNT cladding diamond film, the preparation side of the foam framework of carbon nano tube/graphene cladding diamond film surface peening
Method is：
Deposited graphite alkene or graphene coated diamond composite layer：
By foam base plate or the foam base plate of turmeric hard rock film layer has been placed in chemical vapor deposition stove, Direct precipitation graphite
Alkene；Deposition parameter is：It is 5-80% that carbonaceous gas accounts for all gas mass flow percentage ratio in stove；Growth temperature is 400-1200
DEG C, grow air pressure 5-105Pa；Plasma electric current density 0-50mA/cm2；In deposition region, magnetic field intensity is that 100 Gausses are special to 30
Si La；Or
In foam base plate or the foam base plate surface of turmeric hard rock film layer has been splashed using plating, chemical plating, evaporation, magnetic control
Penetrate, a kind of method in chemical vapor deposition, physical vapour deposition (PVD) deposits the one kind in nickel, copper, cobalt in diamond film layer surface
Or composite modified layer, redeposited Graphene；Obtain the foam framework of Graphene or graphene coated diamond film surface peening；
Deposition of carbon nanotubes or CNT cladding diamond composite bed：
By foam base plate or the foam base plate of depositing diamond film layer has been placed in chemical vapor deposition stove, Direct precipitation carbon
Nanotube；Deposition parameter is：It is 5-50% that carbonaceous gas accounts for all gas mass flow percentage ratio in stove；Growth temperature is 400-
1300 DEG C, grow air pressure 103-105Pa；Plasma electric current density 0-30mA/cm2；In deposition region, magnetic field intensity is 100 Gausses
To 30 teslas；Or
In foam base plate or the foam base plate surface of turmeric hard rock film layer has been splashed using plating, chemical plating, evaporation, magnetic control
Penetrate, a kind of method in chemical vapor deposition, physical vapour deposition (PVD) deposits one kind in nickel, copper, cobalt or compound in deposition surface
Modified layer, redeposited CNT；Obtain the foam framework of CNT or CNT cladding diamond film surface peening：
Deposition of carbon nanotubes/graphene coated diamond film composite bed：
By foam base plate or the foam base plate of turmeric hard rock film layer has been placed in chemical vapor deposition stove, and Direct precipitation carbon is received
Mitron, graphene complex；CNT woods deposition parameter is：Carbonaceous gas accounts for all gas mass flow percentage ratio in stove
5-50%；Growth temperature is 400-1300 DEG C, grows air pressure 103-105Pa；Plasma electric current density 0-30mA/cm2；Crystallizing field
In domain magnetic field intensity be 100 Gausses to 30 teslas；Graphene wall deposition parameter is：Carbonaceous gas accounts for all gas quality in stove
Flow percentage is 5-80%；Growth temperature is 400-1200 DEG C, grows air pressure 5-105Pa；Plasma electric current density 0-50mA/
cm2；In deposition region magnetic field intensity be 100 Gausses to 30 teslas；Or
In foam base plate or the foam base plate surface of turmeric hard rock film layer has been splashed using plating, chemical plating, evaporation, magnetic control
Penetrate, a kind of method in chemical vapor deposition, physical vapour deposition (PVD) deposits nickel, copper, one kind of cobalt or compound in diamond surface
Modified layer；Redeposited CNT, Graphene；Obtain the foam bone of carbon nano tube/graphene cladding diamond film surface peening
Frame.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, by foam base plate or has deposited
It is placed in chemical vapor deposition stove after the foam base plate cleaning of diamond film layer, drying, deposited graphite alkene, CNT, carbon are received
During mitron/Graphene, apply plasma asistance growth on foam base plate, while add magnetic field in foam base plate bottom, will etc.
Plasma confinement is strengthened bombardment of the plasma to foam base plate surface, makes Graphene or/and carbon nanometer in foam base plate near surface
Pipe is grown perpendicular to diamond surface, forms CNT woods or Graphene wall, is obtained the uniform Graphene wall in surface and is coated Buddha's warrior attendant
The three-dimensional space network stephanoporate framework of stone, CNT woods cladding diamond or CNT woods/Graphene wall cladding diamond.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, to foam framework surface grafting
The method of seed crystal is：
Foam framework is placed in the suspension of nanocrystalline and/or micron diamond hybrid particles, is shaken in ultrasound wave
Swing, be uniformly dispersed, nanocrystalline and/or micron diamond granular absorption is in foam framework mesh surface；Or configuration contains nanometer
And/or aqueous solution or the organic solution of micron diamond, nanocrystalline and/or micron diamond granule is made using electrophoretic deposition
Absorption is in foam framework mesh surface.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, paraffin phase prepared by the method
Foam framework selected by change energy-storage material can be by the square fin of diamond or diamond composite layer cladding, rectangular fin, circle
In the shapes such as fin, spiral fin, corrugated fins, serrated fin, pin fin, longitudinal fin, overall plate-shaped fins
At least one replacement.
A kind of foam diamond of the present invention strengthens the preparation method of paraffin wax phase change energy storage material, the bubble of surface peening therein
Foam skeleton be equally applicable for microcapsule process paraffin and other phase-change materials, including higher aliphatic hydro carbons, fatty acid or its ester,
The organic phase-change materials such as alcohols, arene, fragrant ketone, amide-type, freon class, polyhydroxy carbonic acid class；Or water of crystallization
Close the one kind or compound in other mineral-type phase-change materials such as salt, fuse salt, metal and its alloy.
Foam framework and paraffin, fire retardant and paraffin backing material composition wax phase change storage of the present invention using surface peening
Energy material, surface peening layer choosing is from diamond film, Graphene wall, CNT wall, graphene coated diamond film, CNT
One kind in cladding diamond film, carbon nano tube/graphene cladding diamond film, foam framework are selected from foam Organic substance, foam
One kind in metal and alloy, foam Inorganic Non-metallic Materials.Make relative to traditional heat conduction particle or fin or metal foam
For the phase-changing energy storage material of heat filling, the present invention is network interpenetrating in Diamond Films With High Thermal Conductivity prepared by foam framework surface
Continuous structure, and its thickness can be arbitrarily adjustable in the range of 0.5 μm～1mm.Meanwhile, the foam diamond framework structure can basis
The aperture of foam base plate and porosity are arbitrarily allocated, and by means of the high thermal conductivity of diamond, can be provided for phase-change material higher
Heat transfer efficiency, especially suitable high temperature, the high-power, application in high energy consumption field；Further, since good chemical lazy of diamond
Property, corrosion of the metallic framework during phase-change material use can be prevented effectively from, organic phase-change accumulation energy material is applicable not only to
Material, foam diamond framework prepared by the method compatibility extremely strong for inorganic hydrated salt class phase transformation material also has and adaptation
Property.Additionally, can further increase the heat conductivility of foam framework by surface modification Graphene or/and CNT, and then
Improve heat transference efficiency.
The outstanding advantage of the present invention：
1st, foam metal and foamed ceramics are gradually to be applied the novel multifunction material of accreditation in recent years, with controllable
High porosity, the structural advantage such as high-permeability, high-specific surface area, space be continuous；The thermal advantages such as high heat conduction, high heat capacity；With
And lightweight and good mechanics bearing capacity；
2nd, diamond has the incomparable superelevation thermal conductivity of other materials, and which is as reinforcement to composite heat conductivity
Can improve has greatly help.Three-dimensional net structure of the foam diamond by foam metal skeleton obtained in of the invention, in three-dimensional
Continuous distribution is kept in space, makes diamond and phase-change material define network interpenetrating configuration, so as to compound interface pair can be weakened
The appreciable impact of material thermal property, composite prepared by the method pass through continuous structure of the diamond on three dimensions,
The heat transfer efficiency of reinforcement is played to greatest extent can；
3rd, the good chemical inertness of diamond guarantees that foam framework is stably on active service in phase-change material, is guaranteeing composite
While performance, the service life of composite can be greatly improved.
4th, the present invention simultaneously can be by preparing Graphene or/and CNT composite strengthening on foam diamond framework surface
Layer, can further increase the specific surface area of foam framework, further enhance its electric conductivity, and then improve phase change composite material
Heat transfer efficiency.
5th, the features such as diamond has low-density, high intensity, causes phase-changing energy storage material prepared by the method in space
Application has great prospect.
In sum, present configuration is reasonable, heat conductivity is high, stable performance, by surface modification Graphene or/and carbon
Nanotube, can further increase the heat conductivility of foam framework, and then improve heat transference efficiency, effectively lift existing energy storage material
The performance of material.Due to the good chemical inertness of diamond, metallic framework can be prevented effectively from during phase-change material use
Corrosion, be applicable not only to organic phase-changing energy storage material, for inorganic hydrated salt class phase transformation material also have extremely strong compatibility and
Adaptability, is suitable to industrialized production；It is suitable for high temperature, the high-power, application in high energy consumption field.
Specific embodiment
Technical scheme is further described below by specific embodiment.
The embodiment of the present invention is carried out by following technique or step：
(1) foam framework substrate is put into and carry out in ethanol ultrasonic vibration cleaning, take out drying stand-by；
(2) using one kind side in plating, chemical plating, evaporation, magnetron sputtering, chemical vapor deposition, physical vapour deposition (PVD)
Method prepares intermediate layer on foam framework surface, and described intermediate layer includes in nickel, copper, tungsten, molybdenum, titanium, silver, chromium
Plant or complex metal layer；
(3) by nanocrystalline and micron diamond hybrid particles, foam framework substrate, solvent mixing, it is placed in ultrasound wave
Concussion 30min, be uniformly dispersed after, take out foam framework substrate and dry, obtain in the middle of mesh, inlaying nanocrystalline in a large number and micron brilliant
The foam framework substrate of diamond particles；
(4) using hot-wire chemical gas-phase deposition in the continuous fine and close strengthening layer of metal substrate surface deposition, the strengthening layer
It is selected from diamond film, graphene film, carbon nano-tube film, graphene coated diamond, CNT cladding diamond, carbon nanometer
At least one in pipe coated graphite alkene, carbon nano tube/graphene cladding diamond；
(5) laying mode of the foam framework reinforcement after surface-modified process in phase-change material can be divided into following three
The mode of kind:
A. foam diamond framework is combined with phase-change material as overall reinforcement, and it is strong that composite is integrally formed high heat conduction
Change layer/phase-change material network blackboard；
B. foam diamond framework is combined with phase-change material as flake reinforcement body, reinforcement arragement direction in the base
For parallel arrangement；
C. foam diamond framework is combined with matrix as strip reinforcement, arragement direction of the reinforcement in phase-change material
For parallel arrangement；
(6) foam framework with strengthening layer and phase-change material are combined using technology such as vacuum impregnation solidifications.
Embodiment one:
Foam diamond strengthens wax phase change composite：
Aperture is adopted in this example for 0.2mm, and used as substrate, foam diamond reinforcement accounts for multiple the foam copper of percent opening 50%
Composite volume fraction 20%, is first according to step (1) and foam copper three-dimensional network substrate is cleaned, and presses step (2) afterwards
Adopt magnetron sputtering technique foam copper three-dimensional network skeleton surface deposit thickness for 50nm chromium film as intermediate layer；So
The foam framework substrate of mesh in the middle of inlaying in a large number nanocrystalline and micron diamond granule is obtained according to step (3) afterwards；Step
(4) HF CVD depositing diamond film, deposition process parameters are adopted：Heated filament is apart from 6mm, 800 DEG C of substrate temperature, hot-wire temperature
2200 DEG C, deposition pressure 3KPa, CH4/H2Volume flow ratio 1:99, diamond film thickness is controlled for 30 μm, that is, obtain foam copper lining
Down payment hard rock three-dimensional network skeleton；(5) foam diamond framework is placed in mould, foam diamond framework is used as flake reinforcement
Body be arranged in parallel in the base and is combined；(6) according to volume ratio 1 at 90 DEG C:Foam diamond framework is put into paraffin by 5
Interior, treat paraffin infiltration and fully infiltrate foam diamond framework, obtain mixture, above-mentioned mixture is carried out at 100 DEG C vacuum
0.5h is processed, bubble therein is excluded, paraffin is preferably filled in the hole of diamond network, continue to protect at 100 DEG C
Warm 1h, is finally down to room temperature and obtains strengthening paraffin wax phase change energy storage material with foam diamond framework, and heat conductivity is
19.78W/(m·K).
Embodiment two:
Foam diamond strengthens wax phase change composite：
Aperture is adopted in this example for 0.2mm, and used as substrate, foam diamond reinforcement accounts for multiple the foam copper of percent opening 50%
Composite volume fraction 20%, is first according to step (1) and foam copper three-dimensional network substrate is cleaned, and presses step (2) afterwards
Adopt magnetron sputtering technique foam copper three-dimensional network skeleton surface deposit thickness for 50nm chromium film as intermediate layer；So
The foam framework substrate of mesh in the middle of inlaying in a large number nanocrystalline and micron diamond granule is obtained according to step (3) afterwards；Step
(4) HF CVD depositing diamond film, deposition process parameters are adopted：Heated filament is apart from 6mm, 800 DEG C of substrate temperature, hot-wire temperature
2200 DEG C, deposition pressure 3KPa, CH4/H2Volume flow ratio 1:99, diamond film thickness is controlled for 100 μm, that is, obtain foam copper
Substrate diamond three-dimensional network skeleton；(5) foam diamond framework is placed in mould, foam diamond framework increases as lamellar
Strong body be arranged in parallel in the base and is combined；(6) according to volume ratio 1 at 90 DEG C:Foam diamond framework is put into paraffin by 5
Interior, treat paraffin infiltration and fully infiltrate foam diamond framework, obtain mixture, above-mentioned mixture is carried out at 100 DEG C vacuum
0.5h is processed, bubble therein is excluded, paraffin is preferably filled in the hole of diamond network, continue to protect at 100 DEG C
Warm 1h, is finally down to room temperature and obtains strengthening paraffin wax phase change energy storage material with foam diamond framework, and heat conductivity is
36.51W/(m·K).
Embodiment three:
Foam copper strengthens wax phase change composite：
Aperture is adopted in this example for 0.2mm, and used as reinforcement, foam copper reinforcement accounts for compound the foam copper of percent opening 50%
Material volume fraction 20%, is first according to step (1) and foam copper is cleaned；(2) foam copper is placed in mould, foam copper
It is be arranged in parallel as flake reinforcement body in the base and is combined；(6) according to volume ratio 1 at 90 DEG C:Foam copper is put into stone by 5
In wax, treat paraffin infiltration and fully infiltrate foam copper, obtain mixture, above-mentioned mixture is carried out at 100 DEG C application of vacuum
0.5h, excludes bubble therein, paraffin is preferably filled in the hole of foam copper, continues insulation 1h, finally at 100 DEG C
It is down to room temperature and obtains foam copper enhancing paraffin wax phase change energy storage material, heat conductivity is 4.73W/ (m K).
Example IV:
Nickel foam strengthens wax phase change composite：
Aperture is adopted in this example for 0.2mm, and used as reinforcement, nickel foam reinforcement accounts for compound the nickel foam of percent opening 50%
Material volume fraction 20%, is first according to step (1) and nickel foam is cleaned；(2) nickel foam is placed in mould, nickel foam
It is be arranged in parallel as flake reinforcement body in the base and is combined；(6) according to volume ratio 1 at 90 DEG C:Nickel foam is put into stone by 5
In wax, treat paraffin infiltration and fully infiltrate nickel foam, obtain mixture, above-mentioned mixture is carried out at 100 DEG C application of vacuum
0.5h, excludes bubble therein, paraffin is preferably filled in the hole of nickel foam, continues insulation 1h, finally at 100 DEG C
It is down to room temperature and obtains nickel foam enhancing paraffin wax phase change energy storage material, heat conductivity is 1.64W/ (m K).
Embodiment five:
Foam diamond/Graphene strengthens paraffin wax phase change energy storage material：
It is the foam copper of 0.2mm as substrate to adopt aperture in this example, and foam diamond reinforcement accounts for composite volume
Fraction 40%, being first according to step (1) carries out pretreatment to foam copper three-dimensional network substrate (aperture is 0.05mm) surface, afterwards
By step (2) adopt be deposited with method nickel foam three-dimensional network skeleton surface deposit thickness for 300nm chromium film as centre
Transition zone；Then according to step (3) obtains the foam framework for inlaying nanocrystalline in a large number and micron diamond granule in the middle of mesh
Substrate；(4) HF CVD depositing diamond film, deposition process parameters are adopted：Heated filament is apart from 6mm, 850 DEG C of substrate temperature, heated filament temperature
2200 DEG C of degree, deposition pressure 3KPa, CH4/H2Volume flow ratio 1:99, diamond film thickness is controlled for 100 μm, obtain foam copper
Substrate diamond three-dimensional network skeleton, then former in diamond surface using plasma-assisted chemical vapour deposition in diamond surface
Position growth Graphene, applies plasma asistance growth on foam framework substrate in deposition process, and by adding in substrate bottom
Plus magnetic field plasma confinement in foam framework near surface, strengthen bombardment of the plasma to foam framework surface, make Graphene
Grow perpendicular to diamond surface, obtain in mesh and look unfamiliar containing a large amount of graphene coated diamond high heat conduction granules and Skeleton Table
The foam framework of a large amount of Graphene walls is grown, deposition parameter is：Substrate temperature is 800 DEG C, and deposition pressure is 5.0kPa, CH4/H2Body
Product flow-rate ratio 25:75, plasma electric current density 15mA/cm2, in deposition region magnetic field intensity be 500 Gausses, sedimentation time
30min；The lower orientation of growth for controlling Graphene of effect under extra electric field simultaneously, makes them form graphite perpendicular to diamond surface
Alkene wall, obtains the strengthening layer of graphene coated diamond film, obtains nickel foam substrate graphene coated diamond three-dimensional network bone
Frame；(5) the diamond foam framework of graphene coated is placed in mould, diamond foam framework is as strip reinforcement in base
It is arranged in parallel in body and is combined；(6) according to volume ratio 2:3 are put into foam diamond framework in paraffin, arrange 90 DEG C of furnace temperature,
Treat paraffin infiltration and fully infiltrate foam diamond framework, obtain mixture, above-mentioned mixture is carried out at 100 DEG C application of vacuum
0.5h, excludes bubble therein, paraffin is preferably filled in the hole of diamond network, continues insulation 1h at 100 DEG C,
Finally it is down to room temperature to obtain strengthening paraffin wax phase change energy storage material with foam diamond framework, heat conductivity is
47.49W/(m·K).
Embodiment six:
Foam diamond/graphene/carbon nano-tube strengthens paraffin composite：
It is 0.2mm foam coppers as substrate to adopt aperture in this example, and foam diamond reinforcement accounts for composite volume integral
Number 40%, is first according to step (1) and foam copper three-dimensional network substrate is cleaned, adopt magnetron sputtering by step (2) afterwards
Technology is in the chromium film that foam copper three-dimensional network skeleton surface deposit thickness is 500nm as intermediate layer；Then according to step
(3) the foam framework substrate for inlaying nanocrystalline in a large number and micron diamond granule in the middle of mesh is obtained；Step (4) adopts heated filament
CVD deposition diamond film, deposition process parameters：Heated filament is apart from 6mm, 800 DEG C of substrate temperature, 2200 DEG C of hot-wire temperature, deposition pressure
Strong 3KPa, CH4/H2Volume flow ratio 1:99,500 μm of diamond film thickness is obtained by controlling sedimentation time, that is, obtain foam copper
Substrate diamond three-dimensional network skeleton；Again using hot-wall cvd in diamond surface in-situ deposition graphene film, specially：In H2
Be heated to 950 DEG C of (H in heating process in the atmosphere of Ar2200 and 500mL/min are respectively with Ar flow velocitys, programming rate is 33
DEG C/min), heat treatment 10min after furnace temperature rises to 950 DEG C；CH is passed through after the completion of heat treatment4、H2Mixed gas (gas with Ar
Rate of flow of fluid is respectively methane 5mL/min, hydrogen 200mL/min and argon 500mL/min), start to grow Graphene, rate of cooling
100 DEG C/min, growth time is 3 hours, that is, obtain foam copper diamond/Graphene three-dimensional network skeleton；Magnetron sputtering exists again
Graphenic surface deposits one layer of nickel, then using plasma-assisted chemical vapour deposition in graphenic surface catalytic growth carbon nanometer
Pipe, while acting on the orientation of growth of lower control CNT under extra electric field, makes them vertically form carbon with graphenic surface and receives
Mitron woods, obtains foam copper diamond/graphene/carbon nano-tube three-dimensional network skeleton, and deposition parameter is：Methane, hydrogen quality stream
Amount percentage ratio is 10%；Growth temperature is 600 DEG C, grows air pressure 3000Pa；Plasma electric current density 5mA/cm2；Deposition region
Middle magnetic field intensity be 500 Gausses, growth time 2 hours；(5) surface deposition is had the foam of diamond/graphene/carbon nano-tube
Skeleton is placed in mould, and foam framework be arranged in parallel as flake reinforcement body in the base and is combined；(6) according to volume ratio 2:
3 are put into foam diamond framework in paraffin, arrange 90 DEG C of furnace temperature, treat paraffin infiltration and fully infiltrate foam diamond framework,
Mixture is obtained, above-mentioned mixture is carried out at 100 DEG C application of vacuum 0.5h, excluded bubble therein, paraffin is preferably filled out
It is charged in the hole of diamond network, continues insulation 1h at 100 DEG C, be finally down to room temperature and obtain with foam diamond framework
Strengthen paraffin wax phase change energy storage material, heat conductivity is 79.38W/ (m K).
Embodiment seven：
Foam diamond framework strengthens Ba (OH)2·8H2O phase change composite materials：
It is 2mm nickel porous as substrate to adopt aperture in this example, and foam diamond reinforcement accounts for composite volume fraction
40%, it is first according to step (1) and foamed alumina three-dimensional network substrate is cleaned, is splashed using magnetic control by step (2) afterwards
Technology is penetrated in the tungsten film that nickel foam three-dimensional network skeleton surface deposit thickness is 200nm as intermediate layer；Then according to step
Suddenly (3) obtain the foam framework substrate for inlaying nanocrystalline in a large number and micron diamond granule in the middle of mesh；Step (4) is using heat
Silk CVD deposition diamond film, deposition process parameters：Heated filament is apart from 6mm, 800 DEG C of substrate temperature, 2200 DEG C of hot-wire temperature, deposition
Pressure 3KPa, CH4/H2Volume flow ratio 1:99, diamond film thickness is controlled for 300 μm, that is, obtain nickel foam substrate diamond three
Dimension network skeleton；(5) foam diamond framework is placed in mould, foam diamond framework as flake reinforcement body in the base
It is arranged in parallel and is combined；(6) according to volume ratio 2 at 90 DEG C:3 are put into foam diamond framework in paraffin, treat that paraffin oozes
Thoroughly and foam diamond framework is infiltrated fully, obtain mixture, above-mentioned mixture is carried out at 100 DEG C application of vacuum 0.5h, arrange
Except bubble therein, paraffin is preferably filled in the hole of diamond network, continue insulation 1h at 100 DEG C, finally drop
Obtain strengthening paraffin wax phase change energy storage material with foam diamond framework to room temperature, heat conductivity is 9.59W/ (m
K).
Knowable to the thermal conductivity data that above example is obtained, foam diamond framework prepared by the present invention strengthens paraffin phase
Becoming material and tremendous increase being obtained compared to the thermal conductivity that foam metal strengthens paraffin phase change material, thermal conductivity is reached as high as
79.38W/mK, composite obtained in the present invention strengthen phase and phase change material and keep continuous distribution in three dimensions, form net
Network interpenetrating structure, plays the heat transfer efficiency of reinforcement to greatest extent, makes the thermal conductivity of composite compare more traditional phase-change accumulation energy
Material is greatly improved, and combination property, apparently higher than traditional phase change composite material, is a kind of very promising multi-functional compound
Material.
Claims (14)
1. a kind of foam diamond strengthens paraffin wax phase change energy storage material, it is characterised in that the phase-changing energy storage material includes surface
The foam framework of reinforcing, paraffin, fire retardant and paraffin backing material, in the phase being made up of paraffin, fire retardant, paraffin backing material
The foam framework of surface peening is inlaid with change energy-storage material matrix；The foam framework of the surface peening include foam framework,
Surface peening layer；The surface peening layer choosing from diamond film, Graphene wall, CNT wall, graphene coated diamond film,
One kind in CNT cladding diamond film, carbon nano tube/graphene cladding diamond film.
2. a kind of foam diamond according to claim 1 strengthens paraffin wax phase change energy storage material, it is characterised in that surface is strong
The foam framework volume of change accounts for the 1%-80% of phase-changing energy storage material matrix material.
3. a kind of foam diamond according to claim 2 strengthens paraffin wax phase change energy storage material, it is characterised in that foam bone
Modified layer is provided between frame and surface peening layer.
4. a kind of foam diamond according to claim 3 strengthens paraffin wax phase change energy storage material, it is characterised in that described
Modified layer is silicon, niobium, tantalum, nickel, platinum, copper, tungsten, molybdenum, titanium, silver, one or more in chromium compound；The modified layer modification side
Method includes plating, chemical plating, evaporation, magnetron sputtering, chemical vapor deposition, one kind in physical gas-phase deposite method or compound.
5. a kind of foam diamond according to claim 1-4 any one strengthens paraffin wax phase change energy storage material, its feature
It is, the foam aperture of foam framework is 0.01-10mm, and percent opening 20-99.9%, foam cells are uniformly distributed or divide at random
Cloth；Foam framework is planar structure or 3-D solid structure.
6. a kind of foam diamond according to claim 5 strengthens paraffin wax phase change energy storage material, it is characterised in that the bubble
The one kind of foam skeleton in foam metal skeleton, foamed ceramics skeleton or foam carbon skeleton；The foam metal skeleton is selected from
One kind in nickel foam, foam copper, titanium foam, foam cobalt, foam tungsten, foamed molybdenum, foam chromium, foam iron-nickel, foamed aluminium；Described
Foamed ceramics skeleton is selected from foam A12O3, foam ZrO2, foam SiC, foam Si3N4, foam BN, foam B4C, foam AlN, bubble
Foam WC, foam Cr7C3In one kind.
7. a kind of foam diamond according to claim 6 strengthens paraffin wax phase change energy storage material, it is characterised in that phase transformation is stored up
In energy material matrix, the weight portion of paraffin, fire retardant and paraffin backing material is consisted of：
60～80 parts of paraffin, fire retardant 10-30 parts, paraffin backing material 10-20 parts；The fire retardant is selected from tetrachlorobisphenol A, complete
One kind in penta cyclodecane of chlorine, PBDEs class, brominated bisphenol-A class, bromo high polymer；The paraffin backing material includes height
One kind in density polyethylene, polypropylene.
8. a kind of foam diamond strengthens the preparation method of paraffin wax phase change energy storage material, comprises the steps：
The first step：By heating paraffin to 100-180 DEG C, after fully melting, paraffin backing material and fire retardant are added thereto, are stirred
Mix so as to fully dissolve, obtain phase-changing energy storage material matrix liquation；
Second step：The foam framework of surface peening is put in phase-changing energy storage material matrix liquation, is put into together and is set with vacuum
In standby tube furnace, furnace temperature 90-180 DEG C is set, is taken out vacuum in stove and, to below 10Pa, composite is exhausted to without substantially
Bubble is emerged, and then to the one kind being passed through in stove in air, nitrogen, argon, after insulation 10-180 minutes, furnace cooling is obtained
Foam diamond strengthens paraffin composite.
9. a kind of foam diamond according to claim 8 strengthens the preparation method of paraffin wax phase change energy storage material, its feature
It is：The preparation method of the foam framework surface diamond film of surface peening is：Foam framework is placed in chemical vapor deposition stove
In rotation base station on；Or on the rotation base station that is placed in chemical vapor deposition stove again after foam framework surface grafting seed crystal,
Then diamond layer deposition is carried out, and the rotating speed of gas circuit distribution, heated filament arrangement and rotation base station in regulating stove, carbonaceous gas are accounted in stove
All gas mass flow percentage ratio is 0.5-10.0%；Growth temperature is 600-1000 DEG C, grows air pressure 103-104Pa；Obtain
Foam framework surfaces externally and internally is bulky grain micron order diamond film layer.
10. a kind of foam diamond according to claim 9 strengthens the preparation method of paraffin wax phase change energy storage material, its feature
It is：On the rotation base station that foam framework is placed in chemical vapor deposition stove, heated filament is set in foam framework both sides, heated filament is away from bubble
Foam skeleton distance is 5-12mm, and heated filament spacing is 5-20mm；The heated filament is taenidium or raw silk rings；, divide in foam framework up and down
Multiple air inlet/outlets are not uniformly arranged, and it is 5-100r/min to control to rotate base station autorotation speed, obtains foam framework surfaces externally and internally
Diamond thicknesses of layers is 0.5 μm～1000 μm, and in film layer, crystallite dimension is 1 μm -200 μm.
A kind of 11. foam diamond according to claim 9 strengthen the preparation method of paraffin wax phase change energy storage material, its feature
It is：Graphene coated diamond film, CNT cladding diamond film, carbon nano tube/graphene cladding diamond film surface
The preparation method of the foam framework of reinforcing is：
Deposited graphite alkene or graphene coated diamond composite layer：
By foam base plate or the foam base plate of turmeric hard rock film layer has been placed in chemical vapor deposition stove, Direct precipitation Graphene；
Deposition parameter is：It is 5-80% that carbonaceous gas accounts for all gas mass flow percentage ratio in stove；Growth temperature is 400-1200 DEG C,
Growth air pressure 5-105Pa；Plasma electric current density 0-50mA/cm2；In deposition region magnetic field intensity be 100 Gausses to 30 special this
Draw；Or
In foam base plate or the foam base plate surface employing plating of turmeric hard rock film layer, chemical plating, evaporation, magnetron sputtering, change
A kind of method in vapour deposition, physical vapour deposition (PVD) deposits one kind in nickel, copper, cobalt or compound in diamond film layer surface
Modified layer, redeposited Graphene；Obtain the foam framework of Graphene or graphene coated diamond film surface peening；
Deposition of carbon nanotubes or CNT cladding diamond composite bed：
By foam base plate or the foam base plate of depositing diamond film layer has been placed in chemical vapor deposition stove, Direct precipitation carbon nanometer
Pipe；Deposition parameter is：It is 5-50% that carbonaceous gas accounts for all gas mass flow percentage ratio in stove；Growth temperature is 400-1300
DEG C, grow air pressure 103-105Pa；Plasma electric current density 0-30mA/cm2；In deposition region, magnetic field intensity is 100 Gausses to 30
Tesla；Or
In foam base plate or the foam base plate surface employing plating of turmeric hard rock film layer, chemical plating, evaporation, magnetron sputtering, change
A kind of method in vapour deposition, physical vapour deposition (PVD) deposits the one kind or composite modified in nickel, copper, cobalt in deposition surface
Layer, redeposited CNT；Obtain the foam framework of CNT or CNT cladding diamond film surface peening：
Deposition of carbon nanotubes/graphene coated diamond film composite bed：
By foam base plate or the foam base plate of turmeric hard rock film layer has been placed in chemical vapor deposition stove, Direct precipitation carbon nanometer
Pipe, graphene complex；CNT woods deposition parameter is：It is 5- that carbonaceous gas accounts for all gas mass flow percentage ratio in stove
50%；Growth temperature is 400-1300 DEG C, grows air pressure 103-105Pa；Plasma electric current density 0-30mA/cm2；Deposition region
Middle magnetic field intensity be 100 Gausses to 30 teslas；Graphene wall deposition parameter is：Carbonaceous gas accounts for all gas quality stream in stove
Amount percentage ratio is 5-80%；Growth temperature is 400-1200 DEG C, grows air pressure 5-105Pa；Plasma electric current density 0-50mA/
cm2；In deposition region magnetic field intensity be 100 Gausses to 30 teslas；Or
In foam base plate or the foam base plate surface employing plating of turmeric hard rock film layer, chemical plating, evaporation, magnetron sputtering, change
A kind of method in vapour deposition, physical vapour deposition (PVD) deposits nickel, copper, one kind of cobalt or composite modified in diamond surface
Layer；Redeposited CNT, Graphene；Obtain the foam framework of carbon nano tube/graphene cladding diamond film surface peening.
A kind of 12. foam diamond according to claim 11 strengthen the preparation method of paraffin wax phase change energy storage material, and which is special
Levy and be：It is placed in chemical vapor deposition stove by foam base plate or the foam base plate cleaning of depositing diamond film layer, after drying,
When deposited graphite alkene, CNT, carbon nano tube/graphene, apply plasma asistance growth on foam base plate, while in bubble
Foam base bottom adds magnetic field, and by plasma confinement in foam base plate near surface, reinforcing plasma is to foam base plate surface
Bombardment, makes Graphene or/and CNT grow perpendicular to diamond surface, forms CNT woods or Graphene wall, obtain
The uniform Graphene wall cladding diamond in surface, CNT woods cladding diamond or CNT woods/Graphene wall cladding Buddha's warrior attendant
The three-dimensional space network stephanoporate framework of stone.
A kind of 13. foam diamond according to claim 9 strengthen the preparation method of paraffin wax phase change energy storage material, its feature
It is, to the method for foam framework surface grafting seed crystal is：
Foam framework is placed in the suspension of nanocrystalline and/or micron diamond hybrid particles, is shaken in ultrasound wave, divided
Dissipate uniformly, nanocrystalline and/or micron diamond granular absorption is in foam framework mesh surface；Or
Configuration aqueous solution or organic solution containing nanometer and/or micron diamond, using electrophoretic deposition make nanocrystalline and/or
Micron diamond granular absorption is in foam framework mesh surface.
A kind of 14. foam diamond according to claim 8-13 any one strengthen the preparation of paraffin wax phase change energy storage material
Method, it is characterised in that foam framework selected from square fin, rectangular fin, Round fin, spiral fin, corrugated fins,
At least one in serrated fin, pin fin, longitudinal fin, overall plate-shaped fins.
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| US16/086,608 US10995192B2 (en) | 2016-03-21 | 2017-02-22 | Composite material reinforced by foamed skeleton and preparation method and uses thereof |
| PCT/CN2017/074397 WO2017161993A1 (en) | 2016-03-21 | 2017-02-22 | Foam skeleton reinforced composite, preparation method therefor, and application thereof |
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