CN104559188A - Formula of electrically insulating material soft silicone rubber and preparation method - Google Patents
Formula of electrically insulating material soft silicone rubber and preparation method Download PDFInfo
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- CN104559188A CN104559188A CN201510065278.1A CN201510065278A CN104559188A CN 104559188 A CN104559188 A CN 104559188A CN 201510065278 A CN201510065278 A CN 201510065278A CN 104559188 A CN104559188 A CN 104559188A
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Abstract
The invention relates to a formula of electrically insulating material soft silicone rubber and a preparation method. The electrically insulating material soft silicone rubber comprises the following components in parts by weight: 50-90 parts of a silicone rubber raw material, 20-30 parts of a thinner, 2-3 parts of a coupling agent, 3-5 parts of a chain extender, 3-5 parts of a vulcanizing agent, 4-10 parts of a catalyst and 5-10 parts of a tackifier. The preparation method comprises the following steps: (1) adding the silicone rubber raw material, the thinner, the chain extender and the catalyst into a mixture and uniformly stirring; (2) adding the silicone rubber raw material, the thinner, the vulcanizing agent, the coupling agent and the tackifier into the mixture and uniformly stirring; (3) mixing the mixture obtained in the step (1) and the mixture obtained in the step (2) and uniformly stirring, vacuuming, defoaming for 1.5-2 hours and potting and (4) after potting for one hour at room temperature, starting sticking, 24 hours later, completely curing or carrying out heating curing at 80 DEG C-150 DEG C and completely curing at 20 minutes-1 hour.
Description
Technical field
The present invention relates to ambient cure software silicone rubber formulations and processing technique field, refer in particular to a kind of for sealing the dynamic electrified body of electric installation and improving insulating property, do not affect again software silastic material formula and the working method of electrified body motion.
Background technology
Closing of current vacuum interrupter, be drive the rapid movement of vacuum interrupter moving contact to realize by dynamic insulated tension pole, dynamic insulated tension pole motion must be directly exposed in gas.One exposes in atmosphere, directly by external environment influence, the filth of air and condensation all can make external insulation degradation, the way of usual raising external insulation performance increases insulated tension pole creep distance, the method increasing insulated tension pole creep distance can make the size of insulated tension pole increase, the overall dimensions of isolating switch is strengthened, but cannot change easily by the impact of external environment, thus reduced insulation performance.Another kind fills SF6 gas or dry insulating gas, and SF6 gas-insulated can not be applied to plateau, extremely cold area, and after SF6 gas leakage, insulation decline easily causes equipment explosion, and sulfur hexafluoride belongs to greenhouse gases, not environmentally, not easily reclaims.Fill the post of what gas all understand between receive external environment influence, and then reduce the insulation against ground of moving contact of breaker and insulated tension pole.How to find the soft insulating material can filled around a kind of dynamic insulation pull bar, not only sealed insulation pull bar, do not affect again its motion, fundamentally solving outdoor environment affects the insulation reduction caused, and strengthens insulating property again simultaneously.
Summary of the invention
For solving the problem, the invention provides formula and the preparation method of the soft silicon rubber of a kind of insulating material.
Technical scheme of the present invention is: the formula of the soft silicon rubber of a kind of insulating material, comprises by weight
Silicone rubber material: 50-90, thinner: 20-30, coupling agent: 2-3, chainextender: 3-5, vulcanizing agent: 3-5, catalyzer: 4-10, tackifier: 5-10.
Described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds.
Described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds.
Described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds.
Described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds.
Described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds.
Described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.
According to the preparation method of the soft silicon rubber of insulating material that foregoing formula carries out, comprise the steps:
(1), by silicone rubber material, thinner, chainextender, catalyzer add in mixing tank and stir 20-30 minute, guarantee fully to mix;
(2), silicone rubber material, thinner, vulcanizing agent, coupling agent, tackifier are added in mixing tank to stir within 15-20 minute, guarantee fully to mix;
(3), by step 1) and step 2) by 1:1 mixing and stirring, vacuumizing and defoaming 1.5-2 hour, get final product embedding;
(4), normal temperature embedding started sticky after 1 hour, and within 24 hours, after fixing is complete; Or be heated to 80 degree-150 degree lower solidifications, completion of cure in 20 minutes-1 hour.
Described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds;
Described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds;
Described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds;
Described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds;
Described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds;
Described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.
Beneficial effect of the present invention
Insulating material that the present invention applies has the features such as dielectric properties are good, high voltage withstanding, flame retardant properties is good, ambient cure, high-low temperature resistant, UV resistant and ozone, ageing-resistant, Silicone Rubber stable, the recyclable recycling of application product environmental protection, the present invention is enable to obtain large-area applications at middle pressure electric insulation Material Field, thus the reliability of medium voltage electricity equipment is applied under various severe environment be greatly improved, positive contribution has been made in the development for medium voltage electricity industry.
Embodiment
Embodiment one: the formula of the soft silicon rubber of a kind of insulating material, comprises by weight
Silicone rubber material: 50-90, thinner: 20-30, coupling agent: 2-3, chainextender: 3-5, vulcanizing agent: 3-5, catalyzer: 4-10, tackifier: 5-10.
Described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds.Vulcanizing agent is for increasing solidification intensity, curing speed.
Described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds.Thinner plays speedup deaeration effect;
Described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds.Coupling agent is for increasing cohesiveness.
Described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds.Chainextender is for increasing solidification intensity.
Described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds.Catalyzer is for increasing curing speed.
Described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.Silicon rubber itself does not have muscles and bones, cannot play a supportive role to an electrified body, support so epoxy resins insulation skeleton need be increased an electrified body outside, silicon rubber itself and epoxy resins insulation skeleton cannot adhesions, if adhesion cannot can cause that electrified body is creepage along the gap of silicon rubber and interlaminar resin to lead to a disaster, therefore tackifier must be increased in silicon rubber inside, thus silicon rubber itself and epoxy backbone is made to reach close adhesion.
Embodiment two: according to the preparation method of the soft silicon rubber of insulating material that foregoing formula carries out, comprise the steps:
(1), by silicone rubber material, thinner, chainextender, catalyzer add in mixing tank and stir 20-30 minute, guarantee fully to mix;
(2), silicone rubber material, thinner, vulcanizing agent, coupling agent, tackifier are added in mixing tank to stir within 15-20 minute, guarantee fully to mix;
(3), by step 1) and step 2) by 1:1 mixing and stirring, vacuumizing and defoaming 1.5-2 hour, get final product embedding;
(4), normal temperature embedding started sticky after 1 hour, and within 24 hours, after fixing is complete; Or be heated to 80 degree-150 degree lower solidifications, completion of cure in 20 minutes-1 hour.
Described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds;
Described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds;
Described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds;
Described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds;
Described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds;
Described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.Silicon rubber itself does not have muscles and bones, cannot play a supportive role to an electrified body, support so epoxy resins insulation skeleton need be increased an electrified body outside, silicon rubber itself and epoxy resins insulation skeleton cannot adhesions, if adhesion cannot can cause that electrified body is creepage along the gap of silicon rubber and interlaminar resin to lead to a disaster, therefore tackifier must be increased in silicon rubber inside, thus silicon rubber itself and epoxy backbone is made to reach close adhesion.
The electricity function index that the soft silicon rubber of insulating material that the present embodiment is made reaches is:
。
Claims (9)
1. a formula for the soft silicon rubber of insulating material, comprises silicone rubber material: 50-90, thinner: 20-30, coupling agent: 2-3, chainextender: 3-5, vulcanizing agent: 3-5, catalyzer: 4-10, tackifier: 5-10 by weight.
2. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds.
3. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds.
4. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds.
5. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds.
6. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds.
7. the formula of the soft silicon rubber of insulating material according to claim 1, is characterized in that: described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.
8. the preparation method of the soft silicon rubber of insulating material that carries out of formula according to claim 1, comprises the steps:
(1), by silicone rubber material, thinner, chainextender, catalyzer add in mixing tank and stir 20-30 minute, guarantee fully to mix;
(2), silicone rubber material, thinner, vulcanizing agent, coupling agent, tackifier are added in mixing tank to stir within 15-20 minute, guarantee fully to mix;
(3), by step 1) and step 2) by 1:1 mixing and stirring, vacuumizing and defoaming 1.5-2 hour, get final product embedding;
(4), normal temperature embedding started sticky after 1 hour, and within 24 hours, after fixing is complete; Or be heated to 80 degree-150 degree lower solidifications, completion of cure in 20 minutes-1 hour.
9. the preparation method of the soft silicon rubber of insulating material according to claim 8, is characterized in that:
Described vulcanizing agent is the mixture of si28, si32, si40, tetrabutyl titanate wherein a kind of or at least two kinds;
Described thinner is the mixture of dimethyl silicone oil, 203 silicone oil, poly-hydroxy silicon, epoxy group(ing) silicone oil wherein a kind of or at least two kinds;
Described coupling agent is the mixture of KH560, KH550, KH792, KH602 wherein a kind of or at least two kinds;
Described chainextender: the mixture of dimethyl diethoxy siloxanes, containing hydrogen silicone oil, dimethyl two Diacetylmonoxime base silane wherein a kind of or at least two kinds;
Described catalyzer: the mixture of the complex compound of the metals such as lawrencium, palladium, nickel, platinum wherein a kind of or at least two kinds;
Described tackifier: the mixture of boric acid, KH560, KH792, titanium complex wherein a kind of or at least two kinds.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018020A (en) * | 2015-07-23 | 2015-11-04 | 天津市虹泰玻璃有限公司 | Good caking property two-component hollow glass silicone sealant |
| CN106566252A (en) * | 2016-11-14 | 2017-04-19 | 常熟市永祥机电有限公司 | Preparation method of silicone rubber used for electrical insulation |
| CN106751844A (en) * | 2016-11-14 | 2017-05-31 | 常熟市永祥机电有限公司 | The silicon rubber of electric insulation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351627A (en) * | 2013-07-09 | 2013-10-16 | 东莞兆舜有机硅新材料科技有限公司 | Addition type heat-conducting silicon rubber and preparation method thereof |
| CN103360770A (en) * | 2013-07-04 | 2013-10-23 | 江苏南瓷绝缘子有限公司 | High-temperature vulcanized modified silicon rubber and production method thereof |
-
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- 2015-02-09 CN CN201510065278.1A patent/CN104559188A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360770A (en) * | 2013-07-04 | 2013-10-23 | 江苏南瓷绝缘子有限公司 | High-temperature vulcanized modified silicon rubber and production method thereof |
| CN103351627A (en) * | 2013-07-09 | 2013-10-16 | 东莞兆舜有机硅新材料科技有限公司 | Addition type heat-conducting silicon rubber and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018020A (en) * | 2015-07-23 | 2015-11-04 | 天津市虹泰玻璃有限公司 | Good caking property two-component hollow glass silicone sealant |
| CN106566252A (en) * | 2016-11-14 | 2017-04-19 | 常熟市永祥机电有限公司 | Preparation method of silicone rubber used for electrical insulation |
| CN106751844A (en) * | 2016-11-14 | 2017-05-31 | 常熟市永祥机电有限公司 | The silicon rubber of electric insulation |
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Application publication date: 20150429 |