CN103588987A - Electric insulating film and preparing method thereof - Google Patents
Electric insulating film and preparing method thereof Download PDFInfo
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- CN103588987A CN103588987A CN201310482978.1A CN201310482978A CN103588987A CN 103588987 A CN103588987 A CN 103588987A CN 201310482978 A CN201310482978 A CN 201310482978A CN 103588987 A CN103588987 A CN 103588987A
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Abstract
The invention discloses an electric insulating film and a preparing method thereof. The electric insulating film comprises an insulating matrix film and insulation paste, wherein the insulation paste is uniformly applied to the insulating matrix film in a triangular shape, and is cured at the room temperature for 24 hours, wherein the coating thickness is 0.025mm; the insulating matrix film thickness is 0.045mm thick; the performances of the electric insulating film are as follows: the tensile strength is 65-72MPa, the elongation at break is 46-60%, the hot-shrinkage rate is 0.8-1.2%, the electric strength is 158-168kV/mm, the dielectric constant is 1.73-1.8, and the apparent decomposition temperature is 400-425 DEG C. The preparation method is simple and convenient, and is easy to realize, and the prepared electric insulating film has an excellent mechanical property, an excellent insulating property and high temperature resistance; the insulation paste is applied to the insulating matrix film in a fixed shape, so that a regular channel can be formed, the discharge and the cooling of air among the insulating films are facilitated, and more importantly, the adding of insulating gas or insulating liquid for supplementary insulation is benefited, so that the application performance of the electric insulating film can be further improved.
Description
Technical field
The present invention relates to insulating material technical field, particularly relate to a kind of electrical insulating film and preparation method thereof.
Background technology
The electric installations such as mutual inductor, dry type transformer, electrical condenser, electrical instrumentation use conventionally under high-pressure situations, and according to the difference of its voltage swing of living in, the insulating material needing is also different.Air, oilpaper and SF
6insulating gas is the insulating material that above-mentioned electric installation is conventional.But in recent years, along with the progress of technology, voltage range improves constantly, and above-mentioned insulating material and insulation mode all can not meet service requirements.Therefore, the higher insulating material of exploitation insulating property is a kind of inexorable trend.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of electric insulating film and preparation method thereof.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of electric insulation film is provided, comprises: matrix insulation film and insulation paste; Described insulation paste is evenly coated on described matrix insulation film with triangular shape, and through self-vulcanizing, 24h forms, and coat-thickness is 0.025mm; The thickness of described matrix insulation film is 0.045mm.
In a preferred embodiment of the present invention, described matrix insulation film is electrician's grade polypropylene film or electrician's level Kapton.
In a preferred embodiment of the present invention, the weight part formula of described insulation paste consists of: organosilicon gluing agent 5～8, liquid-state epoxy resin 92～95, pnenolic aldehyde amine hardener T31 20～30, dibutyl phthalate 8～10, acetone 30～50.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of preparation method of electric insulation film is provided, comprises the following steps:
(1) in the container with heating and stirring device, by formula, add the agent of organosilicon gluing and proper amount of acetone, under the condition of 60 ℃ of constant temperature, 200 turn/min, stir 1h, make the agent of organosilicon gluing be dissolved in acetone completely;
(2) by adding liquid-state epoxy resin, dibutyl phthalate and pnenolic aldehyde amine hardener T31 in the organosilicon gluing agent of filling a prescription after the middle dissolving of step (1), with the temperature in step (1) and stirring velocity, continue to stir 1h, obtain insulation paste solution;
(3) under agitation in the insulation paste solution obtaining in step (2), add proper amount of acetone, regulating the viscosity of insulation paste solution is 25s, then in the vacuum chamber of 0.1MPa, carries out vacuum outgas, makes insulation paste solution without bubble;
(4) utilize coating machine by being uniformly coated on matrix insulation film by triangular shape without bubble insulation paste solution in step (3), the film after coating is placed under room temperature and solidifies 24h, obtain electric insulation film.
The invention has the beneficial effects as follows: the preparation method of a kind of electric insulating film of the present invention is easy, easily realize, the electric insulating film of preparing has good mechanical property, insulating property and resistance to elevated temperatures; By apply insulation paste with solid shape on dielectric base film, formed regular passage, not only be conducive to discharge and the cooling of air between insulating material, the more important thing is and contribute to add insulating gas or insulating liquid to carry out supplementary insulation, further improve the application performance of electric insulating film.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of electric insulation film of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1. insulation paste, 2. matrix insulation film.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The experiment condition that the present invention does not mention and testing standard are the conventional process of this area.
Refer to Fig. 1, the embodiment of the present invention comprises:
A film, comprising: matrix insulation film 2 and insulation paste 1; Described insulation paste 1 is evenly coated on described matrix insulation film 2 with triangular shape, and through self-vulcanizing, 24h forms, and coat-thickness is 0.025mm; The thickness of described matrix insulation film 2 is 0.045mm.
Described matrix insulation film is electrician's grade polypropylene film or electrician's level Kapton.
Embodiment 1
The weight part formula of insulation paste consists of: organosilicon gluing agent 5, liquid-state epoxy resin 95, pnenolic aldehyde amine hardener T31 20, dibutyl phthalate 8, acetone 30.
The preparation process of electric insulation film:
(1) in the container with heating and stirring device, by formula, add the gluing agent of 5g organosilicon and proper amount of acetone, under the condition of 60 ℃ of constant temperature, 200 turn/min, stir 1h, make the agent of organosilicon gluing be dissolved in acetone completely;
(2) by adding 95g liquid-state epoxy resin, 8g dibutyl phthalate and 20g pnenolic aldehyde amine hardener T31 in the organosilicon gluing agent of filling a prescription after the middle dissolving of step (1), with the temperature in step (1) and stirring velocity, continue to stir 1h, obtain insulation paste solution;
(3) under agitation in the insulation paste solution obtaining in step (2), add proper amount of acetone, regulating the viscosity of insulation paste solution is 25s, then in the vacuum chamber of 0.1MPa, carries out vacuum outgas, makes insulation paste solution without bubble;
(4) utilize coating machine by being uniformly coated on electrician's grade polypropylene film by triangular shape without bubble insulation paste solution in step (3), the film after coating is placed under room temperature and solidifies 24h, obtain electric insulation film.
The performance of electric insulating film prepared by aforesaid method is as follows:
Tensile strength 72MPa, elongation at break 60%, percent thermal shrinkage 0.8%, electrical strength 158kV/mm, specific inductivity 1.8,425 ℃ of apparent decomposition temperatures.
The weight part formula of insulation paste consists of: organosilicon gluing agent 8, liquid-state epoxy resin 92, pnenolic aldehyde amine hardener T31 30, dibutyl phthalate 10, acetone 50.
The preparation process of electric insulation film:
(1) in the container with heating and stirring device, by formula, add the gluing agent of 8g organosilicon and proper amount of acetone, under the condition of 60 ℃ of constant temperature, 200 turn/min, stir 1h, make the agent of organosilicon gluing be dissolved in acetone completely;
(2) by adding 92g liquid-state epoxy resin, 10g dibutyl phthalate and 30g pnenolic aldehyde amine hardener T31 in the organosilicon gluing agent of filling a prescription after the middle dissolving of step (1), with the temperature in step (1) and stirring velocity, continue to stir 1h, obtain insulation paste solution;
(3) under agitation in the insulation paste solution obtaining in step (2), add proper amount of acetone, regulating the viscosity of insulation paste solution is 25s, then in the vacuum chamber of 0.1MPa, carries out vacuum outgas, makes insulation paste solution without bubble;
(4) utilize coating machine by being uniformly coated on electrician's level Kapton by triangular shape without bubble insulation paste solution in step (3), the film after coating is placed under room temperature and solidifies 24h, obtain electric insulation film.
The performance of electric insulating film prepared by aforesaid method is as follows:
Tensile strength 65MPa, elongation at break 46%, percent thermal shrinkage 1.2%, electrical strength 168kV/mm, specific inductivity 1.73,400 ℃ of apparent decomposition temperatures.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. an electric insulation film, is characterized in that, comprising: matrix insulation film and insulation paste; Described insulation paste is evenly coated on described matrix insulation film with triangular shape, and through self-vulcanizing, 24h forms, and coat-thickness is 0.025mm; The thickness of described matrix insulation film is 0.045mm.
2. electric insulation film according to claim 1, is characterized in that, described matrix insulation film is electrician's grade polypropylene film or electrician's level Kapton.
3. electric insulation film according to claim 1, it is characterized in that, the weight part formula of described insulation paste consists of: organosilicon gluing agent 5～8, liquid-state epoxy resin 92～95, pnenolic aldehyde amine hardener T31 20～30, dibutyl phthalate 8～10, acetone 30～50.
4. a preparation method for the electric insulation film described in one of claims 1 to 3, is characterized in that, comprises the following steps:
(1) in the container with heating and stirring device, by formula, add the agent of organosilicon gluing and proper amount of acetone, under the condition of 60 ℃ of constant temperature, 200 turn/min, stir 1h, make the agent of organosilicon gluing be dissolved in acetone completely;
(2) by adding liquid-state epoxy resin, dibutyl phthalate and pnenolic aldehyde amine hardener T31 in the organosilicon gluing agent of filling a prescription after the middle dissolving of step (1), with the temperature in step (1) and stirring velocity, continue to stir 1h, obtain insulation paste solution;
(3) under agitation in the insulation paste solution obtaining in step (2), add proper amount of acetone, regulating the viscosity of insulation paste solution is 25s, then in the vacuum chamber of 0.1MPa, carries out vacuum outgas, makes insulation paste solution without bubble;
(4) utilize coating machine by being uniformly coated on matrix insulation film by triangular shape without bubble insulation paste solution in step (3), the film after coating is placed under room temperature and solidifies 24h, obtain electric insulation film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482978.1A CN103588987A (en) | 2013-10-15 | 2013-10-15 | Electric insulating film and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310482978.1A CN103588987A (en) | 2013-10-15 | 2013-10-15 | Electric insulating film and preparing method thereof |
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| CN103588987A true CN103588987A (en) | 2014-02-19 |
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| CN201310482978.1A Pending CN103588987A (en) | 2013-10-15 | 2013-10-15 | Electric insulating film and preparing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992818A (en) * | 2015-07-03 | 2015-10-21 | 安徽广正电气科技有限公司 | Electric reactor iron core structure |
| CN106943258A (en) * | 2017-05-11 | 2017-07-14 | 南京信息工程大学 | A kind of intelligent mattress of multifunction wireless and its physiology signal measuring method |
| CN110506311A (en) * | 2017-02-01 | 2019-11-26 | 超生物科技有限公司 | High dielectric strength insulator body |
-
2013
- 2013-10-15 CN CN201310482978.1A patent/CN103588987A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992818A (en) * | 2015-07-03 | 2015-10-21 | 安徽广正电气科技有限公司 | Electric reactor iron core structure |
| CN110506311A (en) * | 2017-02-01 | 2019-11-26 | 超生物科技有限公司 | High dielectric strength insulator body |
| CN106943258A (en) * | 2017-05-11 | 2017-07-14 | 南京信息工程大学 | A kind of intelligent mattress of multifunction wireless and its physiology signal measuring method |
| CN106943258B (en) * | 2017-05-11 | 2022-01-28 | 南京信息工程大学 | Multifunctional wireless intelligent mattress and human body physiological signal measuring method thereof |
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Application publication date: 20140219 |
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