CN108795050A - A kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing - Google Patents
A kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing Download PDFInfo
- Publication number
- CN108795050A CN108795050A CN201810532830.7A CN201810532830A CN108795050A CN 108795050 A CN108795050 A CN 108795050A CN 201810532830 A CN201810532830 A CN 201810532830A CN 108795050 A CN108795050 A CN 108795050A
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- Prior art keywords
- phase
- icing
- change
- silicon rubber
- composite
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated 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
- C08K5/00—Use of organic ingredients
- C08K5/01—Hydrocarbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
-
- 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
Abstract
The invention discloses a kind of composite material and preparation method thereofs delaying insulator silicon rubber icing, belong to the anti-icing technical field of composite insulator.It the described method comprises the following steps：Selection phase-change material is as base material, the latent heat discharged in phase transition process using phase-change material so that the temperature of silastic surface maintains 0 DEG C or more, to achieve the purpose that delay to freeze；Phase-change material is made into micron order microcapsules, and is fabricated to phase-change microcapsule powder；Phase-change microcapsule powder is mixed with RTV, is spontaneously dried in proportion to obtain the final product.Composite material provided by the present invention carries out delay icing by the heat itself stored, need not consume the energy of power grid, and has the characteristics that phase transition process can be recycled with temperature.By being modified to silastic material, silastic material energy storage density is improved, the anti-icing ability of composite insulator is improved, for the safe and stable operation important role of power grid；There is potential application value to improving power grid anti-ice calamity ability.
Description
Technical field
The present invention relates to a kind of composite material and preparation method thereofs delaying insulator silicon rubber icing, and it is anti-icing to belong to composite insulator
Technical field.
Background technology
Composite insulator because its with light weight, intensity is high, anti-pollution characteristic is good, maintenance workload is small many advantages, such as
China is widely used, and especially in the case where outer dielectric level is relatively low and heavy contamination, composite insulator is preferably to select
Select object.But in rugged environment（Such as snow, mist, frost）Deng cold raindrop or condensation vapor are in composite insulator silicon rubber
On full skirt, it is formed covering ice for insulator.It is aggravated with [space 1] of icing degree, by sleet bridge between insulator umbrella
It connecing, original insulation performance is destroyed, and insulator surface is easy to happen flashover, causes the power breakdown accident of large area, so
Covering ice for insulator is serious disaster.Current antiicing coating mainly has hydrophobic coating, heating power type coating and ice-melting type coating,
But in heating power type coating mostly based on photo-thermal type and electroheating type, shorter mention makes silicone rubber plate have using phase-change microcapsule material
Standby energy storage characteristic, to delay silicon rubber icing.Patent " a kind of winter power transmission line anti-icing painting that publication No. is CN105131832A
Material and preparation method thereof " overcome Anti-icing of Transmission Lines coating poor mechanical property in the prior art and flame retardant property, hydrophobicity performance,
The general defect of hydrophobicity migration performance；Another publication No. is a kind of patent " high hydrophobic static-electricity conducting anti-icing of CN101792631A
Coating and preparation method thereof " coats a kind of hydrophobic coating of low-surface-energy in wire surface, and shipwreck is made to be attached to electric wire with stabilization
Surface can greatly reduce ice cover and delay the formation of icing；Also a kind of publication No. is the patent of invention of CN102099615A
" antiicing coating and application thereof " by the way that antiicing coating is coated in the inside of catheter wall contacted with hydrocarbon fluid, to make such as gas
The solidification condensation product and class ice structure of body hyrate are difficult to adhere to and then grow, and three of the above antiicing coating does not consider to use
Phase-change material stores latent heat and maintains silicon rubber certainly more than zero degree to carry, to delay insulator silicon rubber to freeze.About making
It is anti-icing with phase-change material, in patent " anti-icing paint and preparation method thereof containing alkane phase change microcapsules " disclosed in another kind
50 μm -90 μm of coating is made using nano level microcapsules and is coated on material surface, from contact angle is changed with anti-icing, but this
The latent heat that kind coating method contains is few, without departing from conventional thought.For nano level microcapsules are compared with micron order microcapsules, although can
To improve the dispersing characteristic of microcapsules in the medium, but outer cover quality needed for the phase-change material of cladding equal quality is more, this is aobvious
So reduce the storage density of unit mass microcapsules.If improving the diameter of microcapsules, in phase transition process, microcapsules are more
It is easily rupturable to generate phase-change material leakage the case where.Consider above-mentioned factor, the present invention is that capsule particle is reached micron
Micron level microcapsules and silicon rubber are mixed and made into anti-icing type silastic material by grade, to improve silicon rubber itself storage density,
Silicon rubber itself is modified, to achieve the purpose that postpone icing.
Invention content
It is an object of the present invention to provide a kind of composite material and preparation method thereof delaying insulator silicon rubber icing, enhancings
The anti-icing performance of composite insulator improves the ability that power grid resists ice disaster.
The composite material and preparation method thereof of the present invention for delaying composite insulator silicon rubber icing, includes the following steps：
1.1 choose phase-change material as base material, the latent heat discharged in phase transition process using phase-change material so that silastic surface
Temperature maintain 0 DEG C or more, with achieve the purpose that delay freeze；
Phase-change material is made micron order microcapsules by 1.2, and is fabricated to phase-change microcapsule powder；
1.3 phase-change microcapsule powder mix in proportion with RTV, and mixing spontaneously dries and forms the composite material, to improve RTV's
Cold performance is walked, to delay composite material to freeze；The mixed proportion is：Phase-change microcapsule powder is with RTV silicon rubber according to matter
Amount is than being 1-2:10.
The composite material and preparation method thereof of the present invention for delaying composite insulator silicon rubber icing, it is characterised in that：Institute
It is the tetradecane to state phase-change material, and transformation temperature is 5.8 DEG C；In order to enable n-tetradecane phase-change material is fixed on inside silicon rubber,
The tetradecane is made into microscapsule powder by interface fixation in situ, to maintain its original physical phase transition performance.
Composite material provided by the present invention carries out delay icing by the heat itself stored, need not consume power grid
Energy, and have the characteristics that phase transition process can be recycled with temperature.The present invention is by changing silastic material
Property, silastic material energy storage density is improved, the anti-icing ability of composite insulator is improved, is had emphatically for the safe and stable operation of power grid
It acts on；There is potential application value to improving power grid anti-ice calamity ability.
Specific implementation mode
The method of the present invention is described in detail below in conjunction with the embodiment of the present invention.
Embodiment 1：Using n-tetradecane as phase-change microcapsule core material, it is mixed by phase-change material micro-capsule and with RTV
Example, specific implementation step include：
S1：3 parts of tweens and 3 parts of sapns are uniformly mixed, add 40 parts of n-tetradecanes as core material.
S2：6 parts of polyvinyl alcohol are dissolved in 400 parts of water.Particularly, the polyvinyl alcohol used at this should be 1799 rule
Lattice can properly increase temperature to improve the solubility of polyvinyl alcohol in water.
S3：The mixed liquid of S1 is poured into the mixed solution of S2,30 DEG C of temperature quickly stir 30min.
S4：Continue that 8 parts of NaCl solutions are added dropwise after above-mentioned stirring, continues to stir 30min.
S5：1.2 parts of acetic acid and 40 parts of ethyl orthosilicates are added, continue to stir 3h at 55 DEG C.
S6：The lotion of gained is placed into a period of time, lamination does not occur, then uses 3 μm of nylon organic filter films to take out
Filter.
S7：Obtained filter cake will be filtered to continue to dissolve using absolute ethyl alcohol, then filtered, so cycle 2 times.
S8：Previous step filter cake is dissolved using deionized water, then is filtered.
S9：Previous step filter cake spontaneously dry or obtains phase-change microcapsule powder with insulating box low temperature drying.
S10：By previous step microscapsule powder and RTV according to mass ratio 2:10 mixing.
S11：The mixture of previous step is put into mold, dry forming obtains modified silicon rubber, can postpone icing 6 and divide
Clock.
Embodiment 2：
Using n-tetradecane as phase-change microcapsule core material, 1 is pressed by phase-change material micro-capsule, and with RTV：10 mass ratio is mixed
It closes, other methods and step are same as Example 1.
Embodiment 3：Using n-tetradecane as phase-change microcapsule core material, 1.5 are pressed by phase-change material micro-capsule, and with RTV：
10 mass ratio mixing, other methods and step are same as Example 1.
The heat that the embodiment of the present invention is stored based on phase-change material when ambient temperature is less than transformation temperature, it is releasable from
The latent heat of body storage, to maintain own temperature not change near transformation temperature whithin a period of time；The phase-change material is ten
Four alkane, transformation temperature are 5.8 DEG C.
Under -20 DEG C of low temperature, the speed of heat exchange, phase-change material can maintain 30min at 5.8 DEG C or so, by phase
Become material and make microcapsules, constant temperature part-time does not exceed 30min in the cold curves of Wei Jiao Nang Walk, further mixes microcapsules
In silicon rubber, Fu closes the constant temperature period in the cold curves of Gui Xiang Jiao Walk and is not to be exceeded 30min, but in other environment temperatures, such as -3 DEG C ~
0 DEG C, the speed of heat exchange is slow, and it may be more than 30min that Fu, which closes constant temperature period of time in the cold curves of Gui Xiang Jiao Walk,；It is mixed with phase transformation
The silicon rubber of microcapsules has the characteristics of hardening cold curves of , Qie Walk to be better than usual silicone rubber material after temperature reaches the freezing point.
Claims (2)
1. a kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing, it is characterised in that：Include the following steps：
1.1 choose phase-change material as base material, the latent heat discharged in phase transition process using phase-change material so that silastic surface
Temperature maintain 0 DEG C or more, with achieve the purpose that delay freeze；
Phase-change material is made micron order microcapsules by 1.2, and is fabricated to phase-change microcapsule powder；
1.3 phase-change microcapsule powder mix in proportion with RTV, are spontaneously dried after mixing and form the composite material, to improve RTV
The cold performance of step, to delay composite material to freeze；The mixed proportion is：Phase-change microcapsule powder and RTV silicon rubber according to
Mass ratio is 1-2:10.
2. according to a kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing described in claim 1, feature
It is：The phase-change material is the tetradecane, and transformation temperature is 5.8 DEG C；In order to enable n-tetradecane phase-change material is fixed on silicon rubber
Inside glue, the tetradecane is made by microscapsule powder by interface fixation in situ, to maintain its original physical phase transition performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532830.7A CN108795050A (en) | 2018-05-29 | 2018-05-29 | A kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532830.7A CN108795050A (en) | 2018-05-29 | 2018-05-29 | A kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing |
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| CN108795050A true CN108795050A (en) | 2018-11-13 |
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| CN201810532830.7A Pending CN108795050A (en) | 2018-05-29 | 2018-05-29 | A kind of composite material and preparation method thereof delaying composite insulator silicon rubber icing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317058A (en) * | 2019-06-25 | 2019-10-11 | 国网江西省电力有限公司电力科学研究院 | A kind of anti-icing barium titanate series PTC material and preparation method thereof |
| CN111842091A (en) * | 2020-07-15 | 2020-10-30 | 上海交通大学 | Method for realizing anti-icing surface of airplane lubricated by phase-change material |
| CN115975501A (en) * | 2022-12-07 | 2023-04-18 | 四川大学 | Coating material with icing delaying and radiation refrigeration functions and preparation and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241886A (en) * | 2010-05-11 | 2011-11-16 | 国家纳米科学中心 | Material having ice covering proof function, and preparation method and application thereof |
| CN102268222A (en) * | 2011-08-17 | 2011-12-07 | 天津大学 | Icing-resisting paint containing alkane phase change microcapsules and preparation method thereof |
| WO2014151947A1 (en) * | 2013-03-15 | 2014-09-25 | Entropy Solutions Inc. | Methods for organic nucleating agents |
-
2018
- 2018-05-29 CN CN201810532830.7A patent/CN108795050A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241886A (en) * | 2010-05-11 | 2011-11-16 | 国家纳米科学中心 | Material having ice covering proof function, and preparation method and application thereof |
| CN102268222A (en) * | 2011-08-17 | 2011-12-07 | 天津大学 | Icing-resisting paint containing alkane phase change microcapsules and preparation method thereof |
| WO2014151947A1 (en) * | 2013-03-15 | 2014-09-25 | Entropy Solutions Inc. | Methods for organic nucleating agents |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317058A (en) * | 2019-06-25 | 2019-10-11 | 国网江西省电力有限公司电力科学研究院 | A kind of anti-icing barium titanate series PTC material and preparation method thereof |
| CN111842091A (en) * | 2020-07-15 | 2020-10-30 | 上海交通大学 | Method for realizing anti-icing surface of airplane lubricated by phase-change material |
| CN115975501A (en) * | 2022-12-07 | 2023-04-18 | 四川大学 | Coating material with icing delaying and radiation refrigeration functions and preparation and application thereof |
| CN115975501B (en) * | 2022-12-07 | 2023-08-15 | 四川大学 | Coating material with functions of delaying icing and radiation refrigeration, and preparation and application thereof |
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