CN105694472A - Wet and heat aging resistant insulator material and preparation method thereof - Google Patents
Wet and heat aging resistant insulator material and preparation method thereof Download PDFInfo
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- CN105694472A CN105694472A CN201610263458.5A CN201610263458A CN105694472A CN 105694472 A CN105694472 A CN 105694472A CN 201610263458 A CN201610263458 A CN 201610263458A CN 105694472 A CN105694472 A CN 105694472A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- 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
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- 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
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- 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
Abstract
The invention discloses a wet and heat aging resistant insulator material and a preparation method thereof. The wet and heat aging resistant insulator material is prepared from, by weight, 100 parts of methyl vinyl silicone rubber, 20-30 parts of boron silicon rubber, 20-30 parts of fluoroether rubber, 15-20 parts of phenolic resin, 2-4 parts of benzoyl peroxide, 0.5-1.5 parts of triallyl citrate, 5-10 parts of silane coupling agent, 2-3 parts of hydroxyl silicone oil, 2-3 parts of diphenyl silanediol, 2-3 parts of dithiocar-bamate, 15-20 parts of channel black, 20-30 parts of fumed silica, 10-20 parts of pottery clay, 0.5-1 part of light stabilizer GW-540, 0.2-0.4 part of 2-hydroxy-4-n-octyloxybenzophenone and 2-3 parts of liquid paraffin. The invention further provides the preparation method of the wet and heat aging resistant insulator material. The wet and heat aging resistant insulator material and the preparation method thereof have the advantages that on the basis of satisfying other physical mechanical properties, the wet and heat aging resistance of the material is highlighted, the service life of the material is prolonged, and the incidence of a fault of power operation is reduced.
Description
Technical field
The present invention relates to a kind of power engineering insulator material and preparation method thereof, high-tension insulator material of specifically a kind of wet and heat ageing resistant and preparation method thereof。
Background technology
High-tension insulator is for supporting or hanging high-voltage conductor, plays a kind of special insulation part of buffer action over the ground。What application was wide at present has electric porcelain insulator and silicon rubber insulator, and wherein, owing to the insulating properties of silicon rubber insulator are more stable, therefore various high-tension power transmission and transformation equipments widely used high voltage silicon rubber gradually is as insulation。Another big class of high-tension insulator is bushing, when high-voltage conducting wires is through wall or extraction from oil tank of transformer, is required for bushing as insulation。
Different requirements according to electric power, the wide variety of insulator, different properties, to meet and to adapt to the environmental requirement of various electric power layout。At present, the insulator of ultra-high-tension power transmission line is in operation often because the reasons such as hydrothermal aging cause the faults such as insulation resistance reduction, cracking even puncture, and causes insulator to burn out, causes the circuit breaker trip of transformer station, make circuit have a power failure in short-term or for a long time, cause heavy losses。Bring bigger workload to substation equipment maintenance and repair department, spend substantial amounts of manpower and materials, it is also possible to the time that impact restores electricity, cause damage to power supply enterprise and user。Therefore the ageing-resistant performance improving insulator is to reduce the important measures of accident of power supply。
Applicant, in conjunction with the deficiencies in the prior art, makes every effort to propose a kind of brand-new technical scheme, and by experiment repeatedly, it is provided that the silicon rubber insulator of a kind of wet and heat ageing resistant。
Summary of the invention
The technical problem to be solved is to provide a kind of wet and heat ageing resistant insulator material and preparation method thereof。
For solving above-mentioned technical problem, technical scheme mainly solves from the following aspect: (1) major ingredient selects methyl vinyl silicone rubber, boron-silicon rubber and perfluoroelastomers: mutually make up synergism by composite performance, makes every effort to the overall performance improving material on major ingredient。(2) preferably dibenzoyl peroxide and triallyl citrate acid esters are vulcanizing system: silicone rubber dry heat resistance air aging performance is excellent, but not wet and heat ageing resistant, and when in air containing excessive moisture, strong degraded can occur vulcanizate。As, silicone rubber is at 300 DEG C after aging 24h, and the intensity of vulcanizate is basically unchanged, and when humidity is 180g/m2, can have a strong impact on intensity and other mechanical performances。In addition also can there is strong degraded in silicone rubber under airless airtight aging condition, makes penalty, and by preferred vulcanizing system, can well improve the hydrothermal aging performance of silicone rubber。(3) although prior art adding a small amount of sulfur can improve the mechanical property of peroxide cure glue, but its thermostability decreases, and there is the problems such as crosslink density is low, hot tear strength is low, recovery, and adopt the solution of the present invention, the mechanical property of material can be kept, improve its thermostability。(4) add furnace black and gas-phase silica to reduce the impact on vulcanizing system, improve the quality of sulfuration, improve the thermal insulation of material。(5) in order to adapt to the thermal ageing resistant performance of material, adopt be obstructed class light stabilizer and UV absorbent with the use of, to reduce answer illumination to cause aging, improve the service life of material。(6) group of bond material is joined, and improves further in existing production technology, improves state of cure (vulcanization) and the hydrophobicity performance of material。
Applicant is by experiment repeatedly, finally propose techniques below scheme: a kind of wet and heat ageing resistant insulator material, it is made up of the raw material of following weight portion: as preferred technical scheme, described a kind of wet and heat ageing resistant insulator material, it is made up of following raw material: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 20-30 part, perfluoroelastomers 20-30 part, phenolic resin 15-20 part, dibenzoyl peroxide 2-4 part, triallyl citrate acid esters 0.5-1.5 part, silane coupler 5-10 part, hydroxy silicon oil 2-3 part, diphenyl silanediol 2-3 part, dithiocar-bamate 2-3 part, channel black 15-20 part, gas-phase silica 20-30 part, potter's clay 10-20 part, the light stabilizer GW-540 of 0.5-1 part, Octabenzone 0.2-0.4 part, liquid paraffin 2-3 part。
As preferably, the weight of described hydroxy silicon oil and diphenyl silanediol is 1:1, and the total weight parts of hydroxy silicon oil and diphenyl silanediol is the 1/5 of gas-phase silica。
As preferably, described a kind of wet and heat ageing resistant insulator material, it is made up of the raw material of following weight portion: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 25 parts, perfluoroelastomers 25 parts, 17 parts of phenolic resin, dibenzoyl peroxide 3 parts, triallyl citrate acid esters 1 part, silane coupler 7 parts, hydroxy silicon oil 2.5 parts, diphenyl silanediol 2.5 parts, dithiocar-bamate 2.5 parts, channel black 17 parts, gas-phase silica 25 parts, 15 parts of potter's clay, the light stabilizer GW-540 of 0.7 part, Octabenzone 0.3 part, liquid paraffin 2.5 parts。
As preferably, the mole of described methyl vinyl silicone rubber is 6.8 × 105-7.2 × 105g/mol。
As preferably, the manufacture method of described a kind of wet and heat ageing resistant insulator material, comprise the following steps:
(1) weigh each raw material by weight, channel black, gas-phase silica, hydroxy silicon oil, diphenyl silanediol and silane coupler are joined and blender is sufficiently mixed and dries, make compositions A, standby。
(2) will methyl vinyl silicone rubber, boron-silicon rubber, perfluoroelastomers and phenolic resin addition kneader be plasticated, when the temperature of kneader machine roller is raised to 45 DEG C, compositions A is added in kneader, mediates 20-30 minute, obtain compositions B, and compositions B is cooled to room temperature。
(3) the compositions B after cooling is added in kneader, kneader is warming up to 75-85 DEG C, then by dithiocar-bamate, potter's clay, light stabilizer GW-540, Octabenzone and 1/2nd liquid paraffin mixing to uniform compositions C。
(4) being heated up on mixing for resulting composition C limit limit, continue mixing 15-20 minute again after temperature rises to 110-120 DEG C, rear evacuation continues mixing 10-15 minute, obtains compositions D。
(5) compositions D is passed in mill and carries out out refining, and add dibenzoyl peroxide, triallyl citrate acid esters and remaining liquid paraffin, open refining uniformly rear thin pass-out sheet。
Owing to have employed technique scheme, a kind of wet and heat ageing resistant insulator material, it is made up of following raw material: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 20-30 part, perfluoroelastomers 20-30 part, phenolic resin 15-20 part, dibenzoyl peroxide 2-4 part, triallyl citrate acid esters 0.5-1.5 part, silane coupler 5-10 part, hydroxy silicon oil 2-3 part, diphenyl silanediol 2-3 part, dithiocar-bamate 2-3 part, channel black 15-20 part, gas-phase silica 20-30 part, potter's clay 10-20 part, the light stabilizer GW-540 of 0.5-1 part, Octabenzone 0.2-0.4 part, liquid paraffin 2-3 part, the method have the advantages that on the basis meeting other physical and mechanical propertiess, highlight the wet and heat ageing resistant of material, extend the service life of material, reduce operation power rate of breakdown。
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further。
Embodiment 1
A kind of wet and heat ageing resistant insulator material, is made up of following raw material: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 20 parts, perfluoroelastomers 20 parts, 15 parts of phenolic resin, dibenzoyl peroxide 2 parts, triallyl citrate acid esters 0.5 part, silane coupler 5 parts, hydroxy silicon oil 2 parts, diphenyl silanediol 2 parts, dithiocar-bamate 2 parts, channel black 15 parts, gas-phase silica 20 parts, 10 parts of potter's clay, 0.5 part light stabilizer GW-540, Octabenzone 0.2 part, liquid paraffin 2 parts。
Above-mentioned manufacture method, comprises the following steps:
(1) weigh each raw material by weight, channel black, gas-phase silica, hydroxy silicon oil, diphenyl silanediol and silane coupler are joined and blender is sufficiently mixed and dries, make compositions A, standby。
(2) will methyl vinyl silicone rubber, boron-silicon rubber, perfluoroelastomers and phenolic resin addition kneader be plasticated, when the temperature of kneader machine roller is raised to 45 DEG C, compositions A is added in kneader, mediates 20 minutes, obtain compositions B, and compositions B is cooled to room temperature。
(3) the compositions B after cooling is added in kneader, kneader is warming up to 75 DEG C, then by dithiocar-bamate, potter's clay, light stabilizer GW-540, Octabenzone and 1/2nd liquid paraffin mixing to uniform compositions C。
(4) being heated up on mixing for resulting composition C limit limit, when temperature continues mixing 15 minutes after rising to 110 DEG C again, rear evacuation continues mixing 10-15 minute, obtains compositions D。
(5) compositions D is passed in mill and carries out out refining, and add dibenzoyl peroxide, triallyl citrate acid esters and remaining liquid paraffin, open refining uniformly rear thin pass-out sheet。
Embodiment 2
A kind of wet and heat ageing resistant insulator material, is made up of following raw material: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 25 parts, perfluoroelastomers 25 parts, 17 parts of phenolic resin, dibenzoyl peroxide 3 parts, triallyl citrate acid esters 1 part, silane coupler 7 parts, hydroxy silicon oil 2.5 parts, diphenyl silanediol 2.5 parts, dithiocar-bamate 2.5 parts, channel black 17 parts, gas-phase silica 25 parts, 15 parts of potter's clay, 0.7 part light stabilizer GW-540, Octabenzone 0.3 part, liquid paraffin 2.5 parts
Above-mentioned manufacture method, comprises the following steps:
(1) weigh each raw material by weight, channel black, gas-phase silica, hydroxy silicon oil, diphenyl silanediol and silane coupler are joined and blender is sufficiently mixed and dries, make compositions A, standby。
(2) will methyl vinyl silicone rubber, boron-silicon rubber, perfluoroelastomers and phenolic resin addition kneader be plasticated, when the temperature of kneader machine roller is raised to 45 DEG C, compositions A is added in kneader, mediates 25 minutes, obtain compositions B, and compositions B is cooled to room temperature。
(3) the compositions B after cooling is added in kneader, kneader is warming up to 80 DEG C, then by dithiocar-bamate, potter's clay, light stabilizer GW-540, Octabenzone and 1/2nd liquid paraffin mixing to uniform compositions C。
(4) being heated up on mixing for resulting composition C limit limit, when temperature continues mixing 17 minutes after rising to 115 DEG C again, rear evacuation continues mixing 12 minutes, obtains compositions D。
(5) compositions D is passed in mill and carries out out refining, and add dibenzoyl peroxide, triallyl citrate acid esters and remaining liquid paraffin, open refining uniformly rear thin pass-out sheet。
Embodiment 3
A kind of wet and heat ageing resistant insulator material, is made up of following raw material: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 30 parts, perfluoroelastomers 30 parts, 20 parts of phenolic resin, dibenzoyl peroxide 4 parts, triallyl citrate acid esters 1.5 parts, silane coupler 10 parts, hydroxy silicon oil 3 parts, diphenyl silanediol 3 parts, dithiocar-bamate 3 parts, channel black 20 parts, gas-phase silica 30 parts, 20 parts of potter's clay, 1 part light stabilizer GW-540, Octabenzone 0.4 part, liquid paraffin 3 parts。
Above-mentioned manufacture method, comprises the following steps:
(1) weigh each raw material by weight, channel black, gas-phase silica, hydroxy silicon oil, diphenyl silanediol and silane coupler are joined and blender is sufficiently mixed and dries, make compositions A, standby。
(2) will methyl vinyl silicone rubber, boron-silicon rubber, perfluoroelastomers and phenolic resin addition kneader be plasticated, when the temperature of kneader machine roller is raised to 45 DEG C, compositions A is added in kneader, mediates 30 minutes, obtain compositions B, and compositions B is cooled to room temperature。
(3) the compositions B after cooling is added in kneader, kneader is warming up to 85 DEG C, then by dithiocar-bamate, potter's clay, light stabilizer GW-540, Octabenzone and 1/2nd liquid paraffin mixing to uniform compositions C。
(4) being heated up on mixing for resulting composition C limit limit, when temperature continues mixing 20 minutes after rising to 120 DEG C again, rear evacuation continues mixing 15 minutes, obtains compositions D。
(5) compositions D is passed in mill and carries out out refining, and add dibenzoyl peroxide, triallyl citrate acid esters and remaining liquid paraffin, open refining uniformly rear thin pass-out sheet。
Material property testing
Embodiment 1-3 is prepared material and carries out physical and mechanical properties test, its result such as table 1。
Table 1
High temperature ageing is tested:
It is 170g/m that the material prepared by embodiment 1-3 is respectively put into humidity2, in 175 DEG C of baking ovens 24 hours, glue surface is essentially identical with contrast groups sense organ under room temperature, and wet and heat ageing resistant is better。
The equipment used in the present invention is the common equipment of this area, does not repeat them here。
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention。Any those skilled in the art, equivalent variations done under without departing from the design of the present invention and the premise of principle and amendment, all should belong to the scope of protection of the invention。
Claims (5)
1. a wet and heat ageing resistant insulator material, it is characterized in that, it is made up of the raw material of following weight portion: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 20-30 part, perfluoroelastomers 20-30 part, phenolic resin 15-20 part, dibenzoyl peroxide 2-4 part, triallyl citrate acid esters 0.5-1.5 part, silane coupler 5-10 part, hydroxy silicon oil 2-3 part, diphenyl silanediol 2-3 part, dithiocar-bamate 2-3 part, channel black 15-20 part, gas-phase silica 20-30 part, potter's clay 10-20 part, the light stabilizer GW-540 of 0.5-1 part, Octabenzone 0.2-0.4 part, liquid paraffin 2-3 part。
2. a kind of wet and heat ageing resistant insulator material according to claim 1, it is characterised in that: the weight of described hydroxy silicon oil and diphenyl silanediol is 1:1, and the total weight parts of hydroxy silicon oil and diphenyl silanediol is the 1/5 of gas-phase silica。
3. a kind of wet and heat ageing resistant insulator material according to claim 1, it is characterized in that, it is made up of the raw material of following weight portion: methyl vinyl silicone rubber 100 parts, boron-silicon rubber 25 parts, perfluoroelastomers 25 parts, 17 parts of phenolic resin, dibenzoyl peroxide 3 parts, triallyl citrate acid esters 1 part, silane coupler 7 parts, hydroxy silicon oil 2.5 parts, diphenyl silanediol 2.5 parts, dithiocar-bamate 2.5 parts, channel black 17 parts, gas-phase silica 25 parts, 15 parts of potter's clay, the light stabilizer GW-540 of 0.7 part, Octabenzone 0.3 part, liquid paraffin 2.5 parts。
4. a kind of wet and heat ageing resistant insulator material according to claim 3, it is characterised in that: the mole of described methyl vinyl silicone rubber is 6.8 × 105-7.2×105g/mol。
5. the manufacture method of a kind of wet and heat ageing resistant insulator material according to claim 1 and 2, it is characterised in that comprise the following steps:
(1) weigh each raw material by weight, channel black, gas-phase silica, hydroxy silicon oil, diphenyl silanediol and silane coupler are joined and blender is sufficiently mixed and dries, make compositions A, standby；
(2) will methyl vinyl silicone rubber, boron-silicon rubber, perfluoroelastomers and phenolic resin addition kneader be plasticated, when the temperature of kneader machine roller is raised to 45 DEG C, compositions A is added in kneader, mediates 20-30 minute, obtain compositions B, and compositions B is cooled to room temperature；
(3) the compositions B after cooling is added in kneader, kneader is warming up to 75-85 DEG C, then by dithiocar-bamate, potter's clay, light stabilizer GW-540, Octabenzone and 1/2nd liquid paraffin mixing to uniform compositions C；
(4) being heated up on mixing for resulting composition C limit limit, continue mixing 15-20 minute again after temperature rises to 110-120 DEG C, rear evacuation continues mixing 10-15 minute, obtains compositions D；
(5) compositions D is passed in mill and carries out out refining, and add dibenzoyl peroxide, triallyl citrate acid esters and remaining liquid paraffin, open refining uniformly rear thin pass-out sheet。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832754A (en) * | 2017-03-22 | 2017-06-13 | 广东电网有限责任公司电力科学研究院 | A kind of phenol-formaldehyde resin modified material and its application |
| CN110028897A (en) * | 2019-04-26 | 2019-07-19 | 广东阿尔派新材料股份有限公司 | A kind of lightweight selfcurable insulative material intelligently coated applied to overhead bare conductor |
| CN111154273A (en) * | 2020-01-10 | 2020-05-15 | 何先鹏 | Flexible high-temperature-resistant wire and cable material and processing method thereof |
| CN113461424A (en) * | 2021-07-15 | 2021-10-01 | 萍乡市高压电瓷厂有限公司 | Anti-aging electric porcelain insulator and preparation method thereof |
| CN114685998A (en) * | 2020-12-30 | 2022-07-01 | 襄阳国网合成绝缘子有限责任公司 | Silicone rubber material for anti-aging composite insulator and preparation method thereof |
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| CN110028897A (en) * | 2019-04-26 | 2019-07-19 | 广东阿尔派新材料股份有限公司 | A kind of lightweight selfcurable insulative material intelligently coated applied to overhead bare conductor |
| CN111154273A (en) * | 2020-01-10 | 2020-05-15 | 何先鹏 | Flexible high-temperature-resistant wire and cable material and processing method thereof |
| CN114685998A (en) * | 2020-12-30 | 2022-07-01 | 襄阳国网合成绝缘子有限责任公司 | Silicone rubber material for anti-aging composite insulator and preparation method thereof |
| CN113461424A (en) * | 2021-07-15 | 2021-10-01 | 萍乡市高压电瓷厂有限公司 | Anti-aging electric porcelain insulator and preparation method thereof |
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Application publication date: 20160622 |