CN1258194C - Application of fluorinated silicone rubber to prepare synthetic insulator - Google Patents
Application of fluorinated silicone rubber to prepare synthetic insulator Download PDFInfo
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- CN1258194C CN1258194C CN 03152731 CN03152731A CN1258194C CN 1258194 C CN1258194 C CN 1258194C CN 03152731 CN03152731 CN 03152731 CN 03152731 A CN03152731 A CN 03152731A CN 1258194 C CN1258194 C CN 1258194C
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- fluorine
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Abstract
The present invention belongs to the purpose of composite insulators used by fluorosilicone rubber for preparing high-voltage transmission and transformation lines. For further improving the hydrophobicity and the ageing resistance of silicone rubber, fluorosilicone rubber is used for producing composite insulators, a core rod is general epoxy glassfiber cloth, a fluorosilicone rubber compound is in press injection after a fitting is in compression joint, and composite insulators are formed by heating and vulcanizing. The present invention has the advantages of ageing resistance, acid resistance, alkali resistance, good hydrophobicity and strong anti-pollution flashover capability.
Description
(1), technical field
The invention belongs to the purposes of fluorosioloxane rubber at the synthetic insulator of the defeated modified line Lu Shangyong of preparation high pressure.
(2), background technology
Best synthetic insulator is to make plug by epoxy glass fiber at present, suppresses the synthetic insulator that forms with silicon rubber.Though it has many advantages, the problem of aging of silastic material is very serious.According to the king ancestral of Foshan electrical power industry bureau woods, yellow pine ripple: the insulator that moves 7 years has completely lost hydrophobicity, can't re-use.Analyze its reason: silicon rubber is because acid-proof alkaline is poor, and at acid rain, ultraviolet ray is under the factor effects such as the temperature of alternate, due to the silicon rubber chain rupture.In addition, silicon rubber itself does not possess the ability of anti creepage trace.The hydrophobicity of silicon rubber is that the methyl on the silicon atom points to the interface because flexible polysiloxane backbone is rotated under capillary effect, and hydrophobicity mainly produces by methyl.In a single day the surface destroyed, exposes filler, loses hydrophobicity and be inevitable, and severe patient also can efflorescence.
(3), summary of the invention
In order to overcome the shortcoming of prior art, the invention provides the purposes of a kind of fluorosioloxane rubber at the preparation synthetic insulator, it is not only ageing-resistant, has excellent acid alkalescence, and its surface energy is lower than silicon rubber, and hydrophobicity is better, and anti-pollution flashover ability is stronger.
The present invention solves the technical scheme that its technical problem takes: fluorosioloxane rubber is in the purposes of the synthetic insulator of the defeated modified line Lu Shangyong of preparation high pressure, produce synthetic insulator with fluorosioloxane rubber, plug is conventional epoxy glass cloth, behind the crimping armor clamp, the pressure injection fluorine-silicon compounded rubber stock, sulfuration forms through heating.
Described fluorine-silicon compounded rubber stock, by the silica-based plinth glue of fluorine, reinforced filling, arc resistant filler, vulcanizing agent and auxiliary agent, mixing the making of under vacuum, heating.
The silica-based plinth glue of described fluorine can be pure fluorinated polysiloxane, or the mixture of fluorinated polysiloxane and high-temperature sulfuration silicon rubber raw rubber.
Described fluorinated polysiloxane is explained by following formula:
R in the formula
1Be methyl, R
2Be vinyl, R
3Be fluoro-containing group, n1 is 0～50 number, and n2 is 1～2 number, and n3 is 1～50 number, and n is 100～5000 number.
Described fluoro-containing group can be C
3-C
21Perfluor or part fluoro-containing group, as trifluoro propyl, five fluorine butyl, seven fluorine amyl groups, nine fluorine hexyls, 11 fluorine heptyl, ten trifluoro octyl groups, 15 fluorine nonyls, 17 fluorine decyls, 19 fluorine undecyls, 21 fluorine dodecyls or the like.
The present invention has following advantage: (1), fluoro-carbon bond have very high bond energy, and the Organic fluoride group is introduced in the siloxane chain, and the fluorosioloxane rubber of making has excellent acid alkalescence, and its surface energy is lower than silicon rubber, and is more ageing-resistant.(2), anti-soil dodges that performance is good, synthetic insulator has good hydrophobicity, the umbrella shape corrugated surface at synthetic insulator when raining can not bedew the formation moisture film, but be globule shape drippage, be difficult for constituting conductive channel, its pollution flashover voltage is higher, is 3 times with the electric pressure porcelain insulator.(3), the electric erosion resistance excellence, insulator surface electric leakage flashover forms the bad change of irreversibility and plays the trace phenomenon, general standard is for being not less than 4.5 grades (they being 4.5kV), and synthetic insulator is 6～7 grades.(4), structural stability is good, general porcelain suspension insulator is interior mucilage binding distribution structure, because couple corrosion, in service can the generation hanged down the null value insulation resistance, and synthetic insulator is outer mucilage binding distribution structure, and its heart is the solid bar insulating material, do not exist deterioration to make a joint attack on and wear, zero resistance insulator can not occur.(5), circuit operational efficiency height because the wind and rain self-cleaning of synthetic insulator is good, do not produce zero resistance insulator again, so cleaning inspection work can change per 4～5 years into once, thereby shorten overhaul, interruption duration.(6), in light weight, it is light to contain into the insulator own wt, in transportation, in the construction operation, can alleviate staff's labour intensity greatly.
(4), embodiment
Embodiment 1:
With 100 parts of the fluorosioloxane rubber of 80% fluorine-containing siloxanes link unit, add 10 parts of fume colloidal silicas, 30 parts in aluminium hydroxide is handled 3 parts of auxiliary agents, at vacuum degree-0.095MPa, in the container that temperature is 180 ℃ mixing 2 hours, deposits and spends the night.Add 0.4 part of vulcanizing agent, 160 ℃ of injection mouldings.Through test, at 8 hours 500kv fluorosioloxane rubber insulator of 180 ℃ of post vulcanizations, surperficial water droplet contact angle is 104 °, is that 50 ℃, concentration are to soak no change 20 days in 5% the hydrochloric acid in temperature.
Embodiment 2:
With 100 parts of the fluorosioloxane rubber of 98% fluorine-containing siloxanes link unit, add 10 parts of fume colloidal silicas, 30 parts in aluminium hydroxide is handled 3 parts of auxiliary agents, at vacuum degree-0.095MPa, in the container that temperature is 180 ℃ mixing 2 hours, deposits and spends the night.Add 0.4 part of vulcanizing agent, 160 ℃ of injection mouldings.Through test, at 8 hours 330kv fluorosioloxane rubber insulator of 180 ℃ of post vulcanizations, surperficial water droplet contact angle is 106 °, is that 50 ℃, concentration are that 50 ℃ were soaked no change 20 days in 5% the hydrochloric acid in temperature.
Claims (6)
1, the purposes of a kind of fluorosioloxane rubber in the preparation synthetic insulator, it is characterized in that: produce synthetic insulator with fluorosioloxane rubber, plug is conventional epoxy glass cloth, behind the crimping armor clamp, the pressure injection fluorine-silicon compounded rubber stock, sulfuration forms through heating.
2, purposes according to claim 1, it is characterized in that: described fluorine-silicon compounded rubber stock, with 100 parts of the fluorosioloxane rubber of the fluorine-containing siloxanes link unit of 80%-98%, add 10 parts of fume colloidal silicas, 30 parts in aluminium hydroxide, handle 3 parts of auxiliary agents, at vacuum degree-0.095MPa, in the container that temperature is 180 ℃ mixing 2 hours, deposit and spend the night, add 0.4 part of vulcanizing agent, 160 ℃ of injection mouldings.
3, purposes according to claim 2 is characterized in that: fluorosioloxane rubber is pure fluorinated polysiloxane, or the mixture of fluorinated polysiloxane and high-temperature sulfuration silicon rubber raw rubber.
4, purposes according to claim 3 is characterized in that: the fluorinated polysiloxane structural formula is expressed as:
R in the formula
1Be methyl, R
2Be vinyl, R
3Be fluoro-containing group, n1 is 0～50 number, and n2 is 1～2 number, and n3 is 1～50 number, and n is 100～5000 number.
5, purposes according to claim 4 is characterized in that: R
3Fluoro-containing group is C
3-C
21Perfluor or part fluoro-containing group.
6, purposes according to claim 5 is characterized in that: the part fluoro-containing group is a trifluoro propyl, five fluorine butyl, seven fluorine amyl groups, nine fluorine hexyls, 11 fluorine heptyl, ten trifluoro octyl groups, 15 fluorine nonyls, 17 fluorine decyls, 19 fluorine undecyls or 21 fluorine dodecyls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03152731 CN1258194C (en) | 2003-08-12 | 2003-08-12 | Application of fluorinated silicone rubber to prepare synthetic insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03152731 CN1258194C (en) | 2003-08-12 | 2003-08-12 | Application of fluorinated silicone rubber to prepare synthetic insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1485861A CN1485861A (en) | 2004-03-31 |
| CN1258194C true CN1258194C (en) | 2006-05-31 |
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ID=34156554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03152731 Expired - Lifetime CN1258194C (en) | 2003-08-12 | 2003-08-12 | Application of fluorinated silicone rubber to prepare synthetic insulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN1258194C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250266B (en) * | 2008-03-27 | 2011-09-07 | 上海三爱富新材料股份有限公司 | Fluorine-silicon copolymer rubber and preparation method thereof |
| CN102110503B (en) * | 2010-12-27 | 2012-06-20 | 东莞市高能电气股份有限公司 | Preparation process of inner umbrella skirt of hollow post composite insulator |
| CN102167907B (en) * | 2011-03-02 | 2012-07-25 | 浙江环新氟材枓股份有限公司 | Fluorine silicon mixed making rubber and preparation method thereof |
| CN102775796B (en) * | 2012-08-09 | 2014-07-30 | 东莞嘉骏橡塑制品有限公司 | Electronic rectifier electro-insulating rubber ring in movie machinery accessories |
-
2003
- 2003-08-12 CN CN 03152731 patent/CN1258194C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1485861A (en) | 2004-03-31 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBEI SILICON VALLEY CHEMICAL Co.,Ltd. Assignor: Song Furu Contract fulfillment period: 2008.11.1 to 2013.10.31 Contract record no.: 2008130000059 Denomination of invention: Application of fluorinated silicone rubber to prepare synthetic insulator Granted publication date: 20060531 License type: Exclusive license Record date: 20081110 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBEI SILICON VALLEY CHEMICAL Co.,Ltd. Assignor: Song Furu Contract fulfillment period: 2008.11.1 to 2013.10.31 Contract record no.: 2008130000059 Denomination of invention: Application of fluorinated silicone rubber to prepare synthetic insulator Granted publication date: 20060531 License type: Exclusive license Record date: 20081110 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.1 TO 2013.10.31; CHANGE OF CONTRACT Name of requester: HEBEI GUIGU CHEMICAL CO., LTD. Effective date: 20081110 |
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| CX01 | Expiry of patent term |
Granted publication date: 20060531 |
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| CX01 | Expiry of patent term |