CN108302973A - A kind of fire-retardant phase change radiator structure and preparation method thereof - Google Patents
A kind of fire-retardant phase change radiator structure and preparation method thereof Download PDFInfo
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- CN108302973A CN108302973A CN201711413582.6A CN201711413582A CN108302973A CN 108302973 A CN108302973 A CN 108302973A CN 201711413582 A CN201711413582 A CN 201711413582A CN 108302973 A CN108302973 A CN 108302973A
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- radiator structure
- silica gel
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000741 silica gel Substances 0.000 claims abstract description 42
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 42
- 239000012782 phase change material Substances 0.000 claims abstract description 38
- 239000005030 aluminium foil Substances 0.000 claims abstract description 32
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 17
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 17
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 16
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 239000007822 coupling agent Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 35
- 238000004073 vulcanization Methods 0.000 claims description 26
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 239000011325 microbead Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000005543 nano-size silicon particle Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- -1 vinyl silica gel Chemical compound 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 239000004945 silicone rubber Substances 0.000 claims description 5
- 229940008099 dimethicone Drugs 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/066—Cooling mixtures; De-icing compositions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/06—Coatings; Surface treatments having particular radiating, reflecting or absorbing features, e.g. for improving heat transfer by radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of fire-retardant phase change radiator structure and preparation method thereof, including aluminium foil, the applied on top surface of the aluminium foil has flame-retarded heat-conducting layer of silica gel, and phase-change material layers are coated on bottom surface.The phase-change material layers are prepared by following raw material by weight：15 20 parts of polyisobutene, 10 15 parts of paraffin, 20 40 parts of aluminium hydroxide, 20 40 parts of magnesium hydroxide, 0.5 1 parts of coupling agent, 0.5 1 parts of dispersant.The fire-retardant phase change radiator structure of the present invention has the characteristics that good thermal conductivity, good flame resistance, flexible compressible, while also with phase-change accumulation energy characteristic.
Description
Technical field
The present invention relates to a kind of radiator structures, and in particular to a kind of fire-retardant phase change radiator structure and preparation method thereof.
Background technology
Cooling fin is a kind of device to the easy heat-generating electronic elements heat dissipation in electric appliance, mostly by aluminium alloy, brass or bronze
Make plate, sheet, splintery etc., if cpu central processing unit will use sizable cooling fin in computer, power supply in television set
Pipe, row are managed, and the power tube in amplifirer will use cooling fin.General cooling fin in use will be in electronic component and cooling fin
Contact surface applies last layer heat-conducting silicone grease, and the heat that component is sent out is made more effectively to be transmitted on cooling fin, then is dissipated through cooling fin
It is dealt into surrounding air.
Metal fin is mostly used in the prior art, it is interface characteristics although metal fin thermal coefficient itself is high
Matter is very poor, there is prodigious thermal contact resistance when being contacted with heat source, cannot heat be transmitted to metal from heat source well, to influence
Heat dissipation.
Invention content
In view of the deficiencies of the prior art, first purpose of the invention be to provide a kind of fire-retardant phase change radiator structure and
Its production method, which has the characteristics that good thermal conductivity, good flame resistance, flexible compressible, while also having
There is phase-change accumulation energy characteristic.
Second object of the present invention is to provide for the making for a kind of fire-retardant phase change radiator structure and preparation method thereof
Method.
Realize that first purpose of the present invention can reach by adopting the following technical scheme that：
A kind of fire-retardant phase change radiator structure, including aluminium foil, which is characterized in that the applied on top surface of the aluminium foil has fire-retardant lead
Hot layer of silica gel is coated with phase-change material layers on bottom surface；
Phase-change material layers are prepared by following raw material by weight：15-20 parts of polyisobutene, 10-15 parts of paraffin,
20-40 parts of aluminium hydroxide, 20-40 parts of magnesium hydroxide, 0.5-1 parts of coupling agent, 0.5-1 parts of dispersant.
Preferably, the flame-retarded heat-conducting layer of silica gel is prepared by the following raw material of parts by weight meter：Methyl ethylene silicon
2-8 parts of rubber, 15-20 parts of vinyl silica gel, 18-25 parts of dimethicone, 0.5-2 parts of containing hydrogen silicone oil, platinum catalyst 0.5-1
Part, 20-40 parts of aluminium hydroxide, 20-40 parts of magnesium hydroxide, 10-20 parts of nano silicon dioxide, 10-20 parts of hollow glass microbead.
Preferably, the weight ratio of the aluminium hydroxide and magnesium hydroxide is 1.2-2:1.
Preferably, the weight ratio of the aluminium hydroxide and magnesium hydroxide is 1.5:1.
Preferably, the grain size of the nano silicon dioxide is 1.5-10nm.
Preferably, the grain size of the hollow glass microbead is 30-50 μm.
Preferably, the thermal coefficient of the phase-change material layers is 1.5-2.0w/mk, and phase transition temperature is 50-60 DEG C.
Preferably, the thickness of the aluminium foil is 0.02-0.04mm, the thickness of the flame-retarded heat-conducting silica gel is 0.03-
The thickness of 0.8mm, the phase-change material layers are 0.03-0.8mm.
Realize that second object of the present invention can reach by adopting the following technical scheme that：
A kind of production method of fire-retardant phase change radiator structure, which is characterized in that including：
Material preparation step：Aluminium foil, flame-retarded heat-conducting silica gel base-material, phase-change material base-material are weighed respectively；
Vulcanisation step：Flame-retarded heat-conducting silica gel base-material in material preparation step is evenly applied on the top surface of aluminium foil, is positioned over
Vulcanized in continuous tunnel furnace, after the completion of vulcanization, forms flame-retarded heat-conducting layer of silica gel；
Hot coating step：Phase-change material base-material uniform heat in material preparation step is coated on the aluminium foil after completing vulcanisation step
Bottom surface on, controlled at 65-75 DEG C, form phase-change material layers to get to fire-retardant phase change radiator structure.
Preferably, in vulcanisation step, the parameter of the process of vulcanization is set as：One area's temperature is 125 DEG C, and two area's temperature are
135 DEG C, three area's temperature are 140 DEG C, and four area's temperature are 145 DEG C, and the vulcanization time of each humidity province is 1.5 minutes.
The beneficial effects of the present invention are：
1, the aluminium foil of fire-retardant phase change radiator structure of the invention has excellent heat conductivility.The thermal coefficient of aluminium also reaches
To 270w/mk, there is powerful heat sinking function.It is attached with flame-retarded heat-conducting layer of silica gel, heat conduction silicone additionally, due to aluminium foil surface
For elastomer, there are good flexibility and compressibility, while the phase-change material layers of aluminium foil surface attachment, have from solid phase to
The phase transition process of liquid phase will generate in phase transition process and absorb a large amount of latent heat, can preferably solve in short-term, periodical work
The powerful device of work or the climate control issues that equipment is influenced by periodically good heat flow density, phase-change material layers of the invention add
Aluminium hydroxide, magnesium hydroxide are added, there is excellent flame retardant effect.Therefore, the fire-retardant phase change radiator structure have thermal conductivity it is good,
Good flame resistance, flexible compressible feature, while also there is phase-change accumulation energy characteristic.
2, it is added to aluminium hydroxide, magnesium hydroxide in flame-retarded heat-conducting layer of silica gel of the invention, there is excellent flame retardant effect,
Nano silicon dioxide, hollow glass microbead are also added simultaneously, heat-resisting quantity is greatly improved.
Specific implementation mode
In the following, in conjunction with specific implementation mode, the present invention is described further, in following embodiment, unless otherwise specified,
All raw materials are commercially available.
Embodiment 1：
A kind of production method of fire-retardant phase change radiator structure, including：
Material preparation step：Aluminium foil, flame-retarded heat-conducting silica gel base-material, phase-change material base-material are weighed respectively；Wherein, the flame-retarded heat-conducting
Layer of silica gel is prepared by the following raw material of parts by weight meter：6 parts of methyl vinyl silicone rubber, 18 parts of vinyl silica gel, dimethyl
20 parts of silicone oil, 1 part of containing hydrogen silicone oil, 0.8 part of platinum catalyst, 30 parts of aluminium hydroxide, 20 parts of magnesium hydroxide, nano silicon dioxide 15
Part, 15 parts of hollow glass microbead.
Vulcanisation step：Flame-retarded heat-conducting silica gel base-material in material preparation step is evenly applied on the top surface of aluminium foil, is positioned over
Vulcanized in continuous tunnel furnace, after the completion of vulcanization, forms flame-retarded heat-conducting layer of silica gel；The parameter of the process of vulcanization is set as：One area's temperature
Degree is 125 DEG C, and two area's temperature are 135 DEG C, and three area's temperature are 140 DEG C, and four area's temperature are 145 DEG C, when the vulcanization of each humidity province
Between be 1.5 minutes.It designs in this way, heat conductive silica gel can be made to be bonded in the curing process with aluminium foil and be integrated.
Hot coating step：Phase-change material base-material uniform heat in material preparation step is coated on the aluminium foil after completing vulcanisation step
Bottom surface on, controlled at 70 DEG C, form phase-change material layers to get to fire-retardant phase change radiator structure.Phase-change material layers are by pressing
The following raw material of parts by weight meter is prepared：18 parts of polyisobutene, 2 parts of paraffin, 30 parts of aluminium hydroxide, 20 parts of magnesium hydroxide, idol
Join 0.8 part of agent, 0.8 part of dispersant.
The thickness of the aluminium foil is 0.03mm, and the thickness of the flame-retarded heat-conducting silica gel is 0.05mm, the phase-change material layers
Thickness be 0.05mm；
After testing：The thermal coefficient of the aluminium reaches 270w/mk.The thermal coefficient of the heat conduction silicone is 3.2w/mk；
Its maximum compression ratio is 72%, limit oxygen index 33.The thermal coefficient of the phase-change material layers is 1.5w/mk, phase transition temperature
It is 55 DEG C, quantity of heat storage 190J/g, limit oxygen index 30.
Embodiment 2：
A kind of production method of fire-retardant phase change radiator structure, including：
Material preparation step：Aluminium foil, flame-retarded heat-conducting silica gel base-material, phase-change material base-material are weighed respectively；Wherein, the flame-retarded heat-conducting
Layer of silica gel is prepared by the following raw material of parts by weight meter：2 parts of methyl vinyl silicone rubber, 15 parts of vinyl silica gel, dimethyl
18 parts of silicone oil, 0.5 part of containing hydrogen silicone oil, 0.5 part of platinum catalyst, 24 parts of aluminium hydroxide, 20 parts of magnesium hydroxide, nano silicon dioxide
10 parts, 10 parts of hollow glass microbead.
Vulcanisation step：Flame-retarded heat-conducting silica gel base-material in material preparation step is evenly applied on the top surface of aluminium foil, is positioned over
Vulcanized in continuous tunnel furnace, after the completion of vulcanization, forms flame-retarded heat-conducting layer of silica gel；The parameter of the process of vulcanization is set as：One area's temperature
Degree is 125 DEG C, and two area's temperature are 135 DEG C, and three area's temperature are 140 DEG C, and four area's temperature are 145 DEG C, when the vulcanization of each humidity province
Between be 1.5 minutes.It designs in this way, heat conductive silica gel can be made to be bonded in the curing process with aluminium foil and be integrated.
Hot coating step：Phase-change material base-material uniform heat in material preparation step is coated on the aluminium foil after completing vulcanisation step
Bottom surface on, controlled at 75 DEG C, form phase-change material layers to get to fire-retardant phase change radiator structure.Phase-change material layers are by pressing
The following raw material of parts by weight meter is prepared：15 parts of polyisobutene, 10 parts of paraffin, 20 parts of aluminium hydroxide, 20 parts of magnesium hydroxide, idol
Join 0.5 part of agent, 0.5 part of dispersant
The thickness of the aluminium foil is 0.02mm, and the thickness of the flame-retarded heat-conducting silica gel is 0.03mm, the phase-change material layers
Thickness be 0.03mm；
After testing：The thermal coefficient of the aluminium reaches 270w/mk.The thermal coefficient of the flame-retarded heat-conducting layer of silica gel is
2.9w/mk, maximum compression ratio 64%, limit oxygen index 30.The thermal coefficient of the phase-change material layers is 1.5w/mk,
Phase transition temperature is 55 DEG C, quantity of heat storage 190J/g, limit oxygen index 28.
Embodiment 3：
A kind of production method of fire-retardant phase change radiator structure, including：
Material preparation step：Aluminium foil, flame-retarded heat-conducting silica gel base-material, phase-change material base-material are weighed respectively；Wherein, the flame-retarded heat-conducting
Layer of silica gel is prepared by the following raw material of parts by weight meter：8 parts of methyl vinyl silicone rubber, 20 parts of vinyl silica gel, dimethyl
25 parts of silicone oil, 2 parts of containing hydrogen silicone oil, 1 part of platinum catalyst, 30 parts of aluminium hydroxide, 40 parts of magnesium hydroxide, nano silicon dioxide 20
Part, 20 parts of hollow glass microbead.
Vulcanisation step：Flame-retarded heat-conducting silica gel base-material in material preparation step is evenly applied on the top surface of aluminium foil, is positioned over
Vulcanized in continuous tunnel furnace, after the completion of vulcanization, forms flame-retarded heat-conducting layer of silica gel；The parameter of the process of vulcanization is set as：One area's temperature
Degree is 125 DEG C, and two area's temperature are 135 DEG C, and three area's temperature are 140 DEG C, and four area's temperature are 145 DEG C, when the vulcanization of each humidity province
Between be 1.5 minutes.It designs in this way, heat conductive silica gel can be made to be bonded in the curing process with aluminium foil and be integrated.
Hot coating step：Phase-change material base-material uniform heat in material preparation step is coated on the aluminium foil after completing vulcanisation step
Bottom surface on, controlled at 65-75 DEG C, form phase-change material layers to get to fire-retardant phase change radiator structure.Phase-change material layers by
Following raw material by weight is prepared：20 parts of polyisobutene, 15 parts of paraffin, 40 parts of aluminium hydroxide, 40 parts of magnesium hydroxide,
1 part of coupling agent, 1 part of dispersant.
The thickness of the aluminium foil is 0.04mm, and the thickness of the flame-retarded heat-conducting silica gel is 0.8mm, the phase-change material layers
Thickness is 0.8mm；
After testing：The thermal coefficient of the aluminium reaches 270w/mk.The thermal coefficient of the flame-retarded heat-conducting layer of silica gel is
2.7w/mk, maximum compression ratio 68%, limit oxygen index 29.The thermal coefficient of the phase-change material layers is 1.5w/mk,
Phase transition temperature is 55 DEG C, quantity of heat storage 190J/g, limit oxygen index 28.
Comparative example 1：
This comparative example compared with Example 1, difference lies in：The flame-retarded heat-conducting layer of silica gel by parts by weight meter following raw material
It is prepared：6 parts of methyl vinyl silicone rubber, 18 parts of vinyl silica gel, 20 parts of dimethicone, 1 part of containing hydrogen silicone oil, platinum are urged
0.8 part of agent.Phase-change material layers are prepared by following raw material by weight：18 parts of polyisobutene, 12 parts of paraffin, coupling
0.8 part of agent, 0.8 part of dispersant.
After testing：The thermal coefficient of the aluminium reaches 270w/mk.The thermal coefficient of the heat conduction silicone is 3.2w/mk；
Its maximum compression ratio is 70%, limit oxygen index 26.The thermal coefficient of the phase-change material layers is 1.5w/mk, phase transition temperature
It is 55 DEG C, quantity of heat storage 190J/g, limit oxygen index 27.
For those skilled in the art, technical solution that can be as described above and design are made other each
Kind is corresponding to be changed and deforms, and all these change and deform the protection model that should all belong to the claims in the present invention
Within enclosing.
Claims (10)
1. a kind of fire-retardant phase change radiator structure, including aluminium foil, which is characterized in that the applied on top surface of the aluminium foil has flame-retarded heat-conducting
Layer of silica gel is coated with phase-change material layers on bottom surface；
Phase-change material layers are prepared by following raw material by weight：15-20 parts of polyisobutene, 10-15 parts of paraffin, hydrogen-oxygen
Change 20-40 parts of aluminium, 20-40 parts of magnesium hydroxide, 0.5-1 parts of coupling agent, 0.5-1 parts of dispersant.
2. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the flame-retarded heat-conducting layer of silica gel is by weight
The following raw material of part meter is prepared：2-8 parts of methyl vinyl silicone rubber, 15-20 parts of vinyl silica gel, dimethicone 18-
25 parts, 0.5-2 parts of containing hydrogen silicone oil, 0.5-1 parts of platinum catalyst, 20-40 parts of aluminium hydroxide, 20-40 parts of magnesium hydroxide, nanometer two
10-20 parts of silica, 10-20 parts of hollow glass microbead.
3. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the aluminium hydroxide and magnesium hydroxide
Weight ratio is 1.2-2:1.
4. fire-retardant phase change radiator structure according to claim 3, which is characterized in that the aluminium hydroxide and magnesium hydroxide
Weight ratio is 1.5:1.
5. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the grain size of the nano silicon dioxide is
1.5-10nm。
6. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the grain size of the hollow glass microbead is
30-50μm。
7. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the thermal coefficient of the phase-change material layers
For 1.5-2.0w/mk, phase transition temperature is 50-60 DEG C.
8. fire-retardant phase change radiator structure according to claim 1, which is characterized in that the thickness of the aluminium foil is 0.02-
The thickness of 0.04mm, the flame-retarded heat-conducting silica gel are 0.03-0.8mm, and the thickness of the phase-change material layers is 0.03-0.8mm.
9. a kind of production method of fire-retardant phase change radiator structure according to any one of claims 1 to 8, which is characterized in that
Including：
Material preparation step：Aluminium foil, flame-retarded heat-conducting silica gel base-material, phase-change material base-material are weighed respectively；
Vulcanisation step：Flame-retarded heat-conducting silica gel base-material in material preparation step is evenly applied on the top surface of aluminium foil, tunnel is positioned over
Vulcanized in stove, after the completion of vulcanization, forms flame-retarded heat-conducting layer of silica gel；
Hot coating step：Phase-change material base-material uniform heat in material preparation step is coated on to the bottom of the aluminium foil after completing vulcanisation step
On face, controlled at 65-75 DEG C, phase-change material layers are formed to get to fire-retardant phase change radiator structure.
10. the production method of fire-retardant phase change radiator structure according to claim 9, which is characterized in that in vulcanisation step, sulphur
The parameter of the process of change is set as：One area's temperature is 125 DEG C, and two area's temperature are 135 DEG C, and three area's temperature are 140 DEG C, four area's temperature
It it is 145 DEG C, the vulcanization time of each humidity province is 1.5 minutes.
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