CN101987951A - Insulating tape and preparation method thereof - Google Patents
Insulating tape and preparation method thereof Download PDFInfo
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- CN101987951A CN101987951A CN2009101830795A CN200910183079A CN101987951A CN 101987951 A CN101987951 A CN 101987951A CN 2009101830795 A CN2009101830795 A CN 2009101830795A CN 200910183079 A CN200910183079 A CN 200910183079A CN 101987951 A CN101987951 A CN 101987951A
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Abstract
The invention discloses a silicone rubber insulating tape and a coating-method production process thereof. The insulating tape is manufactured by combining glass fiber cloth belts with two sides coated with insulating viscous materials. The insulating viscous materials comprise the following components in part by weight: 65 to 75 parts of silicone rubber 110-2, 8 to 14 parts of silicone rubber 107, 1 to 2 parts of alkaline acid, 10 to 18 parts of white carbon black A200, 1 to 4 parts of hydroxy silicone oil GY2009-3, 1 to 4 parts of ferric oxide, 1 to 4 parts of vulcanizing agent, and the balance of xylene serving as a solvent. The insulating tape has advantages in the aspects of high-temperature resistance and ageing resistance, and instead of the conventional calendaring process, the process for coating silicone rubber paste on the glass fiber belts is adopted to simplify production process, reduce energy consumption and consequently reduce production cost.
Description
Technical field
The invention belongs to the insulating material field, relate in particular to and a kind ofly be applicable to high-rating generator or high-voltage motor, and the autohension insulation tape of using on the electric furnace ruhmkorff coil.
Background technology
Common autohension rubber insulation tape roughly has two classes at present, one class is fitted by two kinds of sheet rubbers and is formed the High-Voltage Insulation string rubber, be divided into elastic insulating layer and adhesive coating, another kind of is to be the main self-adhesive rubber band of making by isoprene-isobutylene rubber, this two classes adhesive tape mostly exists complicated process of preparation, defective that energy consumption is high, this class adhesive tape easily hardens under the long term high temperature environment in addition, forfeiture viscosity.Silicon rubber is owing to have the characteristic that high temperature resistant theoretical value reaches 380 ℃, be widely used in making insulating material in recent years, at present domestic mostly with rolling process manufacturing pure silicon rubber insulation adhesive tape, be used for generator and some electronic devices and components etc., but pure silicon rubber is the high temperature of 380 ℃ of abilities at short notice only, increase along with the time, its insulation level can descend and cause insulated coil to damage, thereby still can't prolong work-ing life, the environment that a few thing temperature is higher, the insulation tape of prior art can't meet the demands.The technology of external useful silicon rubber and the compound calendering of glasscloth is produced insulation tape, can bear higher temperature, but this insulation tape complex manufacturing, equipment requirements is higher, and product specification is restricted, and promotes difficult.
Summary of the invention
The object of the invention is to provide a kind of high temperature resistant, ageing-resistant, simple insulation tape of manufacture craft and manufacture method thereof.
To achieve these goals, technical scheme of the present invention is: described insulation tape by fiberglass cloth tape coated on both sides insulation cohesive material after compound making, insulation cohesive material component and weight proportion are: silicon rubber 110-2:65～75, silicon rubber 107:8～14, boric acid: 1～2, white carbon black A200:10～18, hydroxy silicon oil GY2009-3:1～4, ferric oxide: 1～4, vulcanizing agent: 1～4, remaining solvent is a dimethylbenzene.
Above-mentioned vulcanizing agent is vulcanizing agent BP.
The method of making above-mentioned insulation tape may further comprise the steps:
A. prepare micelle: methyl silicone rubber at room temperature cure and boric acid are mixed into micelle by proportioning in baking oven;
B. mixing: as micelle to be mixed in rolling machine by proportioning with silicon rubber 110-2, white carbon black A200, hydroxy silicon oil GY2009-3, ferric oxide, generate rubber unvulcanizate;
C. primary vulcanization: the rubber unvulcanizate packaging container is inserted in the baking oven, vulcanize.
D. making beating: rubber unvulcanizate is divided into fritter adds dimethylbenzene, vulcanizing agent, in hollander, stir into Silastic paste;
E. filter dilution: use the strainer filtering Silastic paste, and adding dimethylbenzene to Silastic paste viscosity is diluted to and is coated with-4 glasss of 20～40s;
F. sulfuration for the second time: Silastic paste is transferred to vulcanization tower, add the vulcanizing agent sulfuration;
G. adhere to moulding: glass fiber tape enters the process that vulcanization tower experience silicon rubber vulcanization applies, and forms electric tape at the vulcanization tower top through high bake;
H. system is rolled up: electric tape is covered with transparent diaphragm, cuts and turn to the insulation paste roll coil of strip.
The baking of micelle forms and experiences five continuous alternating temperature stages altogether among the above-mentioned steps a, (50～70min)---110 ℃～130 ℃ (50～70min)---150 ℃～170 ℃ (70～90min)---180 ℃～200 ℃ (70～90min)---close the power supply insulation, and (50～70min), stirring and evenly mixing will be carried out with micelle in the gap between each period to be followed successively by 70 ℃～90 ℃.
Five continuous alternating temperature stages are experienced in sulfuration altogether among the above-mentioned steps c, are followed successively by: 60 ℃～80 ℃ (60～80min)---80 ℃～100 ℃ (60～80min)---90 ℃～110 ℃ (60～80min)---70 ℃～90 ℃ (50～70min)---close power supply insulation (50～70min).
Above-mentioned steps d is a pulping process through two stages: stir the Silastic paste that the upper strata is stirred behind the 4h and be transferred to second hollander and stir 4h in first hollander, stirring once more after lower floor does not become liquid mixing blob of viscose and the next batch charging mixes.
To enter the time of vulcanization tower experience silicon rubber vulcanization coating procedure be 1～2h to glass fiber tape among the above-mentioned steps g, and storing temperature is 100～130 ℃
The electric tape mode of cutting is 45 ° or 60 ° and cuts sth. askew among the above-mentioned steps h.
The present invention has following characteristics:
(1) the used silicon rubber of the present invention is ethylene methacrylic silicon rubber and the combination of methyl silicone rubber at room temperature cure proportioning, the silicon rubber heat-resisting performance of this combination is improved, can be in the hot environment long term operation below 300 ℃, but 320～380 ℃ of non-stop runs more than 5 hours down.
(2) the present invention adopts glass fiber tape and the compound insulating tape of making of silicon rubber, remedied the defective that the pure silicon string rubber at high temperature is difficult to lasting work, the temperature that glass fiber tape can bear is about about 1300 ℃, even therefore outer silicon rubber sclerosis, insulation level descend, glass fiber tape still can keep certain insulation function, obtains significant prolongation in work-ing life of silicone rubber belt thereby make.
(3) the present invention applies the technology generations of baking on glass fibre belt in the past calendering technology with Silastic paste, has simplified Production Flow Chart, reduces energy consumption, thereby has reduced production cost.
(4) the used vulcanizing agent BP of the present invention has very high thermostability to silicon rubber about 110 ℃ to 135 ℃, heat-proof aging and weather-proof aging, effect to ultraviolet ray and ozone is very stable, therefore uses this vulcanizing agent to heat stability and thermotolerance that sulfide type silicon rubber helps to improve silicone rubber belt.
(5) the present invention has strengthened the self-adhesion function of silicon rubber owing to added boric acid, need not consider to use additive method that insulating cloth tape is fixed on the working position in addition.
Embodiment
Embodiment 1
The insulation tape of present embodiment by 2551 type fiberglass cloth tape coated on both sides insulation cohesive material after compound making, insulation cohesive material component and weight proportion are silicon rubber 110-2:65%, silicon rubber 107:12.5%, boric acid: 1.5%, white carbon black A200:15%, hydroxy silicon oil GY2009-3:2%, ferric oxide: 2%, vulcanizing agent: 2%, remaining solvent is a dimethylbenzene.
1) preparation micelle: 3750g silicon rubber 107 is mixed with 450g boric acid, adorn two dishes, be placed on the baking of baking oven levels respectively, baking divides five alternating temperature time periods of successive, is followed successively by 75 ℃, 50min---and 10 ℃, 60min---150 ℃, 70min---180 ℃, 70min---close power supply insulation 50min, stirring and evenly mixing will be carried out with the levels micelle in the gap between each period;
2) mixing: as micelle to be mixed in rolling machine with silicon rubber 110-2,4500g white carbon black A200,600g hydroxy silicon oil GY2009-3, the 600g ferric oxide of 19500g molecular weight 40～600,000 units, generate rubber unvulcanizate;
3) primary vulcanization: the rubber unvulcanizate packaging container is gone in the baking oven, vulcanize, five continuous alternating temperature stages are experienced in sulfuration altogether, are followed successively by: 65 ℃, and 60min---80 ℃, 60min---90 ℃, 60min---70 ℃, 50min---close power supply insulation 60min;
4) making beating: rubber unvulcanizate is divided into fritter puts into hollander, add vulcanizing agent BP600g, and the dimethylbenzene suitable with the stirred vessel volume, in hollander, stir into Silastic paste, the Silastic paste that behind the 4h upper strata is stirred is transferred to second hollander restir 4h, stirring once more after lower floor does not become liquid mixing blob of viscose and the next batch charging mixes;
5) filter dilution: use the strainer filtering Silastic paste, and adding dimethylbenzene to Silastic paste viscosity is diluted to and is coated with-4 glasss of 30s;
6) sulfuration for the second time: Silastic paste is transferred to vulcanization tower, add vulcanizing agent BP900g and carry out post cure, 2551 type glass fiber tapes enter vulcanization tower from the bottom in this process, the experience Silastic paste applies the sulfurized process, then upwards carry, 120 ℃ of bakings form electric tapes at the vulcanization tower top, enter vulcanization tower goes out tower to finished product about 1.5 hours of process from 2551 type glass fiber tapes;
7) system volume: electric tape is covered with transparent diaphragm, cuts sth. askew by bandwidth, then turn to the insulation paste roll coil of strip, packing with 60 ° of angles.
The finished product verification result is as follows:
Embodiment 2
The insulation tape of present embodiment by 2551 type fiberglass cloth tape coated on both sides insulation cohesive material after compound making, insulation cohesive material component and weight proportion are silicon rubber 110-2:73%, silicon rubber 107:12%, boric acid: 1%, white carbon black A200:10%, hydroxy silicon oil GY2009-3:1%, ferric oxide: 1.5%, vulcanizing agent BP:1.5, remaining solvent are dimethylbenzene.
Operation steps is with embodiment 1.
Verification result self-adhesion intensity 102N, minimum tensile strength 105N/mm radially, radially minimum edge tearing strength 7.8N, the minimum 38kv/mm of voltage breakdown (room temperature).
Embodiment 3
The insulation tape of present embodiment by 2551 type fiberglass cloth tape coated on both sides insulation cohesive material after compound making, insulation cohesive material component and weight proportion are silicon rubber 110-2:70%, silicon rubber 107:14%, boric acid: 1%, white carbon black A200:10%, hydroxy silicon oil GY2009-3:1.5%, ferric oxide: 2%, vulcanizing agent BP:1.5%, remaining solvent are dimethylbenzene.
Operation steps is with embodiment 1.
Verification result self-adhesion intensity 105N, minimum tensile strength 108N/mm radially, radially minimum edge tearing strength 8N, the minimum 42kv/mm of voltage breakdown (room temperature).
Claims (8)
1. insulation tape, it is characterized in that: by compound making behind the fiberglass cloth tape coated on both sides insulation cohesive material, insulation cohesive material component and weight proportion are: silicon rubber 110-2:65～75, silicon rubber 107:8～14, boric acid: 1～2, white carbon black A200:10～18, hydroxy silicon oil GY2009-3:1～4, ferric oxide: 1～4, vulcanizing agent: 1～4, remaining solvent is a dimethylbenzene.
2. insulation tape according to claim 1 is characterized in that: described vulcanizing agent is vulcanizing agent BP.
3. the manufacture method of an above-mentioned insulation tape is characterized in that: may further comprise the steps:
A. prepare micelle: methyl silicone rubber at room temperature cure and boric acid are mixed into micelle by proportioning in baking oven;
B. mixing: as micelle to be mixed in rolling machine by proportioning with silicon rubber 110-2, white carbon black A200, hydroxy silicon oil GY2009-3, ferric oxide, generate rubber unvulcanizate;
C. primary vulcanization: the rubber unvulcanizate packaging container is inserted in the baking oven, vulcanize.
D. making beating: rubber unvulcanizate is divided into fritter adds dimethylbenzene, vulcanizing agent, in hollander, stir into Silastic paste;
E. filter dilution: use the strainer filtering Silastic paste, and adding dimethylbenzene to Silastic paste viscosity is diluted to and is coated with-4 glasss of 20～40s;
F. sulfuration for the second time: Silastic paste is transferred to vulcanization tower, add the vulcanizing agent sulfuration;
G. adhere to moulding: glass fiber tape enters the process that vulcanization tower experience silicon rubber vulcanization applies, and forms electric tape at the vulcanization tower top through high bake;
H. system is rolled up: electric tape is covered with transparent diaphragm, cuts and turn to the insulation paste roll coil of strip.
4. the manufacture method of insulation tape according to claim 3, it is characterized in that: the baking of micelle forms and experiences five continuous alternating temperature stages altogether among the described step a, (50～70min)---110 ℃～130 ℃ (50～70min)---150 ℃～170 ℃ (70～90min)---180 ℃～200 ℃ (70～90min)---close the power supply insulation, and (50～70min), stirring and evenly mixing will be carried out with micelle in the gap between each period to be followed successively by 70 ℃～90 ℃.
5. the manufacture method of insulation tape according to claim 3, it is characterized in that: five continuous alternating temperature stages are experienced in sulfuration altogether among the described step c, are followed successively by: 60 ℃～80 ℃ (60～80min)---80 ℃～100 ℃ (60～80min)---90 ℃～110 ℃ (60～80min)---70 ℃～90 ℃ (50～70min)---close power supply insulation (50～70min).
6. the manufacture method of insulation tape according to claim 3, it is characterized in that: pulping process is through two stages in the described steps d: stir the Silastic paste that the upper strata is stirred behind the 4h and be transferred to second hollander and stir 4h in first hollander, stirring once more after lower floor does not become liquid mixing blob of viscose and the next batch charging mixes.
7. the manufacture method of insulation tape according to claim 3 is characterized in that: to enter the time of vulcanization tower experience silicon rubber vulcanization coating procedure be 1～2h to glass fiber tape in the described step g, and storing temperature is 100～130 ℃.
8. the manufacture method of insulation tape according to claim 3 is characterized in that: the electric tape mode of cutting is 45 ° or 60 ° and cuts sth. askew among the described step h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101830795A CN101987951A (en) | 2009-08-06 | 2009-08-06 | Insulating tape and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101830795A CN101987951A (en) | 2009-08-06 | 2009-08-06 | Insulating tape and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101987951A true CN101987951A (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101830795A Pending CN101987951A (en) | 2009-08-06 | 2009-08-06 | Insulating tape and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492390A (en) * | 2011-12-12 | 2012-06-13 | 长春中科应化特种材料有限公司 | Silicon rubber self-melting belt and production method thereof |
| CN102516895A (en) * | 2011-11-29 | 2012-06-27 | 常熟市富邦胶带有限责任公司 | Method for making self-adhesive insulating tape |
| CN102634295A (en) * | 2012-04-19 | 2012-08-15 | 长春中科应化特种材料有限公司 | Insulation high-temperature-resistant pressure-sensitive adhesive tap and preparation method thereof |
| CN102965048A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Reinforced type silicon rubber self-adhesion insulated rubber tape |
| CN102965047A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Double-sided all-purpose adhesive tape |
| CN103158326A (en) * | 2011-12-14 | 2013-06-19 | 常熟市新华化工有限公司 | Production method of silicon rubber |
| CN105261426A (en) * | 2015-10-29 | 2016-01-20 | 江苏安胜电缆有限公司 | High-temperature-resistant silica gel braided wire and manufacturing method thereof |
| CN105733497A (en) * | 2016-04-22 | 2016-07-06 | 福建瑞森新材料股份有限公司 | Silicone rubber self-adhesive agent and preparation method thereof |
| CN109943245A (en) * | 2019-04-04 | 2019-06-28 | 河北超达密封制品有限公司 | A kind of glass-fiber reinforced silicone band and preparation method thereof |
| CN111548028A (en) * | 2020-05-25 | 2020-08-18 | 深圳市莱美斯硅业有限公司 | Glass fiber treating agent, treatment process of glass fiber treating agent on glass fiber and heat-conducting silicon adhesive tape |
| CN113198407A (en) * | 2021-04-30 | 2021-08-03 | 衢州市东凯胶业有限公司 | Production process and production equipment of liquid insulating adhesive tape |
-
2009
- 2009-08-06 CN CN2009101830795A patent/CN101987951A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516895A (en) * | 2011-11-29 | 2012-06-27 | 常熟市富邦胶带有限责任公司 | Method for making self-adhesive insulating tape |
| CN102492390A (en) * | 2011-12-12 | 2012-06-13 | 长春中科应化特种材料有限公司 | Silicon rubber self-melting belt and production method thereof |
| CN103158326A (en) * | 2011-12-14 | 2013-06-19 | 常熟市新华化工有限公司 | Production method of silicon rubber |
| CN102634295A (en) * | 2012-04-19 | 2012-08-15 | 长春中科应化特种材料有限公司 | Insulation high-temperature-resistant pressure-sensitive adhesive tap and preparation method thereof |
| CN102965048A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Reinforced type silicon rubber self-adhesion insulated rubber tape |
| CN102965047A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Double-sided all-purpose adhesive tape |
| CN105261426A (en) * | 2015-10-29 | 2016-01-20 | 江苏安胜电缆有限公司 | High-temperature-resistant silica gel braided wire and manufacturing method thereof |
| CN105733497A (en) * | 2016-04-22 | 2016-07-06 | 福建瑞森新材料股份有限公司 | Silicone rubber self-adhesive agent and preparation method thereof |
| CN105733497B (en) * | 2016-04-22 | 2018-07-03 | 福建瑞森新材料股份有限公司 | A kind of silicon rubber self-adhesive and preparation method thereof |
| CN109943245A (en) * | 2019-04-04 | 2019-06-28 | 河北超达密封制品有限公司 | A kind of glass-fiber reinforced silicone band and preparation method thereof |
| CN111548028A (en) * | 2020-05-25 | 2020-08-18 | 深圳市莱美斯硅业有限公司 | Glass fiber treating agent, treatment process of glass fiber treating agent on glass fiber and heat-conducting silicon adhesive tape |
| CN113198407A (en) * | 2021-04-30 | 2021-08-03 | 衢州市东凯胶业有限公司 | Production process and production equipment of liquid insulating adhesive tape |
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Application publication date: 20110323 |