CN106751848A - A kind of heat-conducting silicone grease and its preparation method and application - Google Patents
A kind of heat-conducting silicone grease and its preparation method and application Download PDFInfo
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- CN106751848A CN106751848A CN201611046823.3A CN201611046823A CN106751848A CN 106751848 A CN106751848 A CN 106751848A CN 201611046823 A CN201611046823 A CN 201611046823A CN 106751848 A CN106751848 A CN 106751848A
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- Prior art keywords
- heat
- silicone grease
- conducting silicone
- nano
- dispersant
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- 239000004519 grease Substances 0.000 title claims abstract description 32
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910017083 AlN Inorganic materials 0.000 claims abstract description 10
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 229920002545 silicone oil Polymers 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- TZHYBRCGYCPGBQ-UHFFFAOYSA-N [B].[N] Chemical compound [B].[N] TZHYBRCGYCPGBQ-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 17
- 230000009466 transformation Effects 0.000 abstract description 15
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- -1 moisture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003924 oil dispersant Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/28—Nitrogen-containing compounds
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/002—Auxiliary arrangements
-
- 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
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- 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
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2003/1034—Materials or components characterised by specific properties
- C09K2003/1078—Fire-resistant, heat-resistant materials
Abstract
The invention belongs to power transmission and transformation line technical field, more particularly to a kind of heat-conducting silicone grease and its preparation method and application.The heat-conducting silicone grease includes the dispersant of methyl-silicone oil, the aluminium nitride of 35wt%~60wt%, the carborundum of 20wt%~40wt%, the nano-silver thread of 5wt%~9wt% and the 20wt%~30wt% of 10wt%~15wt%.Its preparation method is：(1) methyl-silicone oil, aluminium nitride powder and dispersant are weighed, container for stirring is put into uniform；(2) after the mixture in step (1) stirs, then the silicon carbide powder and nano-silver thread that weigh up are sequentially added container for stirring, described heat-conducting silicone grease is obtained after stirring.Heat-conducting silicone grease of the invention has preferable heat conduction and resistance to elevated temperatures, can meet heat conduction and resistant to elevated temperatures requirement of the power transmission and transformation line to lubricating grease.
Description
Technical field
The invention belongs to power transmission and transformation line technical field, more particularly to a kind of heat-conducting silicone grease and its preparation method and application.
Background technology
As economic fast development, the demand to electric power are increasing, requirement higher is it is also proposed to transmission line capability.
State Grid Corporation of China proposes the strategy letter way of " development extra-high voltage, set up electric power highway " in real time, large-section lead, high-strength
The application of steel tower, effectively promotes the conveying of electric energy and the reliability of power network.However, in the construction of " electric power highway "
In, the defeated change circuit surface for undertaking electrical energy transportation task faces some problem demanding prompt solutions.First, with the rising of voltage class
With conveying electric current increase, power transmission and transformation line transmit electric energy during can produce substantial amounts of heat, if can not in time by
These heats are conducted, and be may result in defeated modified line and are passed by heat, and then trigger a series of accident；Second, power transmission and transformation line is more
In the wild, the impurity such as moisture, dust that can be subject in air in the day-to-day operation pollutes, so that heavy corrosion power transmission and transformation for naked leakage
Circuit, further results in power transmission and transformation line too high in resistance, aggravates the problems of excessive heat of power transmission and transformation line.
In order to solve these problems, the method for using at present is mostly to apply to spread with heat conduction and sealing between wire strands
The Hmp grease of effect.These thermal conductive greases are filled between wire strands, can effectively by between wire strands
Heat is conducted, and serves sealing function, prevents the objectionable impurities such as moisture, dust in air from entering between strands,
Improve the operation conditions of wire, so as to extend the service life of power transmission and transformation line, improve the reliability of electric energy transmission.However, mesh
Preceding commercially available power transmission and transformation line thermal conductive greases have that heat-conducting effect is limited, resistance to elevated temperatures, in certain journey
Cause that power transmission and transformation line service life is shorter, Frequent Accidents on degree.
The content of the invention
It is an object of the invention to provide a kind of heat-conducting silicone grease and its preparation method and application, concrete technical scheme is as follows：
A kind of heat-conducting silicone grease：The aluminium nitride of methyl-silicone oil, 35wt%~60wt% including 10wt%~15wt%,
The dispersant of the carborundum of 20wt%~40wt%, the nano-silver thread of 5wt%~9wt% and 20wt%~30wt%.Wherein nitrogen
It is heat filling to change aluminium, carborundum and nano-silver thread；Oil based on methyl-silicone oil, forms pasty masses, for a long time with heat filling
Standing will not the solid separation of oil.
The methyl-silicone oil is commercially available chemically pure reagent, and its viscosity is 1000cs, and operating temperature is -40 DEG C -280 DEG C, close
It is 0.985g/cm to spend2(25℃)。
The aluminium nitride is a kind of pale powder, and density is 3.2g/cm3, fusing point is 2200 DEG C；Thermal conductivity factor is
270W/mk, the particle mean size of aluminium nitride used is 1~5 μm.
The carborundum is a kind of black powder, and density is 3.2g/cm3, fusing point is 2700 DEG C；Thermal conductivity factor is 200W/
Mk, the particle mean size of carborundum used is 1~5 μm.
The nano-silver thread is a kind of pale powder, and density is 10.5g/cm3, fusing point is 960 DEG C；Thermal conductivity factor is
429W/mk, the particle mean size of nano-silver thread used is 100nm, and draw ratio is 100-1000.
The dispersant is ethylene glycol or nitrogen borated dispersant.
A kind of preparation method of heat-conducting silicone grease as described above, comprises the following steps：
(1) according to the mass content of the component, methyl-silicone oil, aluminium nitride powder and dispersant are weighed, is put into container
Stir；
(2) after the mixture in step (1) stirs, then the silicon carbide powder and nano-silver thread that weigh up are added successively
Enter container for stirring, described heat-conducting silicone grease is obtained after stirring.
A kind of heat-conducting silicone grease as described above is used for the radiating and sealing of power transmission and transformation line.
It is an object of the invention to propose that the thermal conductivity factor that a kind of power transmission and transformation line field uses is high, resistant to elevated temperatures thermal conductive silicon
Fat.
Heat-conducting silicone grease of the invention has used various powder with high thermal conductivity coefficient as heat filling, and employs
Different proportionings, the heat-conducting silicone grease of preparation has a thermal conductivity factor and more preferable resistance to elevated temperatures higher, other performances also close to
In state of the art.Radiating and the sealing situation of power transmission and transformation line can be effectively improved when in use, improve power transmission and transformation line
Reliability and increase the service life.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment
According to composition range involved in the present invention, three kinds of heat-conducting silicone greases of different ratio are prepared, its content is shown in Table 1.System
Preparation Method is：According to the mass content of the component, methyl-silicone oil, aluminium nitride powder and dispersant are weighed, be put into container and stir
Mix uniform；It is to be mixed it is uniform after, then the silicon carbide powder and nano-silver thread that weigh up are sequentially added container for stirring, stir
Described heat-conducting silicone grease is obtained afterwards.In order to contrast conveniently, inventor has also listed a kind of commercially available heat-conducting silicone grease, main performance ratio
Relatively it is shown in Table 2.
The specific component content (wt%) of each embodiment heat-conducting silicone grease of table 1
| Aluminium nitride | Carborundum | Nano-silver thread | Methyl-silicone oil | Dispersant | |
| Embodiment 1 | 56 | 23 | 7 | 14 | 20 |
| Embodiment 2 | 50 | 30 | 6 | 14 | 22 |
| Embodiment 3 | 40 | 38 | 8 | 14 | 24 |
The embodiment of the present invention of table 2 profit heat-conducting silicone grease compares with existing silicone grease main performance
From Table 2, it can be seen that heat-conducting silicone grease prepared by embodiment 1~3 has dropping point value and thermal conductivity factor higher, it is excellent
In commercially available import heat-conducting silicone grease.
Claims (7)
1. a kind of heat-conducting silicone grease, it is characterised in that the nitrogen of methyl-silicone oil, 35wt%~60wt% including 10wt%~15wt%
Change the dispersant of aluminium, the carborundum of 20wt%~40wt%, the nano-silver thread of 5wt%~9wt% and 20wt%~30wt%.
2. a kind of heat-conducting silicone grease according to claim 1, it is characterised in that the particle mean size of the aluminium nitride powder is 1
~5 μm.
3. a kind of heat-conducting silicone grease according to claim 1, it is characterised in that the particle mean size of the silicon carbide powder is 1
~5 μm.
4. a kind of heat-conducting silicone grease according to claim 1, it is characterised in that the particle mean size of the nano-silver thread is
100nm, draw ratio is 100~1000.
5. a kind of heat-conducting silicone grease according to claim 1, it is characterised in that the dispersant is that ethylene glycol or nitrogen boron disperse
Agent.
6. the preparation method of a kind of heat-conducting silicone grease described in any one of claim 1-5, it is characterised in that comprise the following steps：
(1) according to the content of component described in claim 1, methyl-silicone oil, aluminium nitride powder and dispersant are weighed, is put into container
Inside stir；
(2) after the mixture in step (1) stirs, then the silicon carbide powder and nano-silver thread that weigh up are sequentially added appearance
Stirring in device, is obtained described heat-conducting silicone grease after stirring.
7. the application of a kind of heat-conducting silicone grease described in any one of claim 1-5, it is characterised in that the heat-conducting silicone grease is used for defeated
Become the radiating and sealing of electric line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822176 | 2016-09-13 | ||
| CN2016108221764 | 2016-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106751848A true CN106751848A (en) | 2017-05-31 |
Family
ID=58974468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611046823.3A Pending CN106751848A (en) | 2016-09-13 | 2016-11-23 | A kind of heat-conducting silicone grease and its preparation method and application |
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| Country | Link |
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| CN (1) | CN106751848A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924924A (en) * | 2012-11-13 | 2013-02-13 | 东莞兆舜有机硅新材料科技有限公司 | Paste heat-conductive silicone grease and preparation method thereof |
| CN103146198A (en) * | 2013-03-12 | 2013-06-12 | 深圳市博恩实业有限公司 | Heat conducting composite material and heat conducting composite sheet prepared by applying same |
| CN104774470A (en) * | 2015-03-25 | 2015-07-15 | 清华大学深圳研究生院 | Sealant for large power LED, and large power LED |
| CN105111740A (en) * | 2015-08-07 | 2015-12-02 | 苏州晶雷光电照明科技有限公司 | Thermal silicone grease used for high-power light emitting diode |
-
2016
- 2016-11-23 CN CN201611046823.3A patent/CN106751848A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924924A (en) * | 2012-11-13 | 2013-02-13 | 东莞兆舜有机硅新材料科技有限公司 | Paste heat-conductive silicone grease and preparation method thereof |
| CN103146198A (en) * | 2013-03-12 | 2013-06-12 | 深圳市博恩实业有限公司 | Heat conducting composite material and heat conducting composite sheet prepared by applying same |
| CN104774470A (en) * | 2015-03-25 | 2015-07-15 | 清华大学深圳研究生院 | Sealant for large power LED, and large power LED |
| CN105111740A (en) * | 2015-08-07 | 2015-12-02 | 苏州晶雷光电照明科技有限公司 | Thermal silicone grease used for high-power light emitting diode |
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Application publication date: 20170531 |