CN112951525A - Preparation process of antistatic and corrosion-resistant mica tape - Google Patents
Preparation process of antistatic and corrosion-resistant mica tape Download PDFInfo
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- CN112951525A CN112951525A CN202110116040.2A CN202110116040A CN112951525A CN 112951525 A CN112951525 A CN 112951525A CN 202110116040 A CN202110116040 A CN 202110116040A CN 112951525 A CN112951525 A CN 112951525A
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- H01—ELECTRIC ELEMENTS
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- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
The invention discloses a preparation process of an antistatic and corrosion-resistant mica tape, which comprises the following steps: the method comprises the following steps: heating the epoxy resin, adding the p-benzamide and the nitrile-butadiene rubber emulsion, and stirring and mixing to obtain modified epoxy resin; step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture; step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder; the invention has the beneficial effects that: the preparation process is simplified, and the efficiency of preparing the mica tape is improved; the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin; the strength of the mica tape is increased by adding the modified glass fiber; the addition of the tung oil increases the corrosion resistance of the prepared mica tape.
Description
Technical Field
The invention belongs to the technical field of mica tape preparation, and particularly relates to a preparation process of an antistatic and corrosion-resistant mica tape.
Background
Mica tape, also called fire-resistant mica tape, is made of (mica tape machine), is a fire-resistant insulating material, and can be divided into: mica tapes for motors and cables; the structure is divided into: double-sided tape, single-sided tape, triple-sided tape, double-film tape, single-film tape, etc.; mica can be further classified into: synthetic mica tape, phlogopite tape, and muscovite tape.
The mica tape is a high-performance mica insulation product and has excellent high-temperature resistance and fire resistance.
In order to simplify the preparation process, improve the preparation efficiency and further improve the antistatic and corrosion resistant properties of the prepared mica tape, the preparation process of the antistatic and corrosion resistant mica tape is provided.
Disclosure of Invention
The invention aims to provide a preparation process of an antistatic and corrosion-resistant mica tape, which simplifies the preparation process, improves the preparation efficiency and further improves the antistatic and corrosion-resistant properties of the prepared mica tape.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation process of an antistatic and corrosion-resistant mica tape comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding the p-benzamide and the nitrile-butadiene rubber emulsion, and stirring and mixing to obtain modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting.
As a preferable technical scheme of the invention, in the first step, the epoxy resin is heated, and the p-benzamide and the nitrile rubber emulsion, which are 0.2 to 0.3 times of the mass of the epoxy resin and 0.2 to 0.4 time of the mass of the epoxy resin, are added, and the modified epoxy resin is obtained after stirring and mixing.
In a preferred embodiment of the present invention, in the second step, the mixed powder is prepared by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is: 1: 8.
as a preferable technical scheme of the invention, in the third step, the rotating speed of the high-speed dispersion is 2500-3000r/min, and the time of the high-speed dispersion is 30-50 min.
As a preferable technical scheme of the present invention, in the fourth step, the volume ratio of the glass fiber to the potassium permanganate solution is 1: 1-3.
In a preferred embodiment of the present invention, in the fifth step, the selected mica is muscovite or phlogopite with hemp chips, sand, impurities and small pieces removed.
In the fifth step, the selected mica is ground and crushed and then sieved by a 200-mesh sieve.
As a preferable technical solution of the present invention, in the sixth step, the hot pressing temperature of the hot press molding is 150-.
Compared with the prior art, the invention has the beneficial effects that:
(1) the preparation process is simplified, and the efficiency of preparing the mica tape is improved;
(2) the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin;
(3) the strength of the mica tape is increased by adding the modified glass fiber;
(4) the addition of the tung oil increases the corrosion resistance of the prepared mica tape.
Drawings
FIG. 1 is a flow chart of the preparation process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: a preparation process of an antistatic and corrosion-resistant mica tape comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding p-benzamide accounting for 0.2 time of the mass of the epoxy resin and nitrile rubber emulsion accounting for 0.2 time of the mass of the epoxy resin, and stirring and mixing to obtain modified epoxy resin; the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture; the mixed powder is formed by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is as follows: 1: 8;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder; the rotating speed of high-speed dispersion is 250r/min, and the time of high-speed dispersion is 50 min;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber; the volume ratio of the glass fiber to the potassium permanganate solution is 1: 1; the strength of the mica tape is increased by adding the modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture; the selected mica is muscovite or phlogopite with hemp chips, sandstone, impurities and small pieces removed; the addition of the tung oil increases the corrosion resistance of the prepared mica tape;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting; the hot pressing temperature of the hot press molding is 150 ℃.
Example 2
Referring to fig. 1, the present invention provides a technical solution: a preparation process of an antistatic and corrosion-resistant mica tape comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding p-benzamide with the mass of 0.3 time of that of the epoxy resin and nitrile rubber emulsion with the mass of 0.3 time of that of the epoxy resin, and stirring and mixing to obtain modified epoxy resin; the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture; the mixed powder is formed by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is as follows: 1: 8;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder; the rotating speed of high-speed dispersion is 2600r/min, and the time of high-speed dispersion is 38 min;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber; the volume ratio of the glass fiber to the potassium permanganate solution is 1: 2; the strength of the mica tape is increased by adding the modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture; the selected mica is muscovite or phlogopite with hemp chips, sandstone, impurities and small pieces removed; the addition of the tung oil increases the corrosion resistance of the prepared mica tape;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting; the hot pressing temperature of the hot press molding is 160 ℃.
Example 3
Referring to fig. 1, the present invention provides a technical solution: a preparation process of an antistatic and corrosion-resistant mica tape comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding p-benzamide accounting for 0.2 time of the mass of the epoxy resin and nitrile rubber emulsion accounting for 0.3 time of the mass of the epoxy resin, and stirring and mixing to obtain modified epoxy resin; the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture; the mixed powder is formed by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is as follows: 1: 8;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder; the rotating speed of high-speed dispersion is 2700r/min, and the time of high-speed dispersion is 40 min;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber; the volume ratio of the glass fiber to the potassium permanganate solution is 1: 2; the strength of the mica tape is increased by adding the modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture; the selected mica is muscovite or phlogopite with hemp chips, sandstone, impurities and small pieces removed; the addition of the tung oil increases the corrosion resistance of the prepared mica tape;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting; the hot pressing temperature of the hot press molding is 170 ℃.
Example 4
Referring to fig. 1, the present invention provides a technical solution: a preparation process of an antistatic and corrosion-resistant mica tape comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding p-benzamide accounting for 0.3 time of the mass of the epoxy resin and nitrile rubber emulsion accounting for 0.4 time of the mass of the epoxy resin, and stirring and mixing to obtain modified epoxy resin; the antistatic performance of the prepared mica tape is improved by adding the modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture; the mixed powder is formed by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is as follows: 1: 8;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder; the rotating speed of high-speed dispersion is 3000r/min, and the time of high-speed dispersion is 50 min;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber; the volume ratio of the glass fiber to the potassium permanganate solution is 1: 3; the strength of the mica tape is increased by adding the modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture; the selected mica is muscovite or phlogopite with hemp chips, sandstone, impurities and small pieces removed; the addition of the tung oil increases the corrosion resistance of the prepared mica tape;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting; the hot pressing temperature of the hot press molding is 190 ℃.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A preparation process of an antistatic and corrosion-resistant mica tape is characterized by comprising the following steps: the preparation process comprises the following steps:
the method comprises the following steps: heating the epoxy resin, adding the p-benzamide and the nitrile-butadiene rubber emulsion, and stirring and mixing to obtain modified epoxy resin;
step two: heating the modified epoxy resin prepared in the step one to soften the modified epoxy resin, adding the mixed powder into the softened modified epoxy resin, and mixing and stirring the mixture;
step three: uniformly stirring, placing in a high-speed dispersion machine for high-speed dispersion, grinding and discharging after dispersion to obtain rubber powder;
step four: heating the glass fiber in a potassium permanganate solution, soaking the heated glass fiber in a titanate coupling agent to obtain a treated glass fiber, mixing the treated glass fiber with epoxy resin, and heating to obtain a modified glass fiber;
step five: selecting mica, grinding, crushing, sieving, mixing with rubber powder and modified glass fiber, stirring in a stirrer, adding tung oil, and continuously mixing and stirring to obtain a mixture;
step six: pouring the mixture into a hot press for hot press molding, cooling to room temperature, rolling and slitting.
2. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the first step, the epoxy resin is heated, and the p-benzamide and the nitrile rubber emulsion are added, wherein the mass of the p-benzamide is 0.2-0.3 time that of the epoxy resin, and the nitrile rubber emulsion is 0.2-0.4 time that of the epoxy resin, and the modified epoxy resin is obtained after stirring and mixing.
3. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the second step, the mixed powder is formed by mixing and grinding aluminum oxide, aluminum nitride and boron nitride, and the mass ratio of the modified epoxy resin to the mixed powder is as follows: 1: 8.
4. the preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the third step, the rotating speed of high-speed dispersion is 2500-3000r/min, and the time of high-speed dispersion is 30-50 min.
5. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the fourth step, the volume ratio of the glass fiber to the potassium permanganate solution is 1: 1-3.
6. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the fifth step, the selected mica is muscovite or phlogopite from which hemp chips, gravels, impurities and small pieces are removed.
7. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the fifth step, mica is selected, ground, crushed and sieved by a 200-mesh sieve.
8. The preparation process of the antistatic and anticorrosive mica tape according to claim 1, characterized in that: in the sixth step, the hot-pressing temperature of the hot-pressing molding is 150-190 ℃.
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| CN202110116040.2A CN112951525A (en) | 2021-01-28 | 2021-01-28 | Preparation process of antistatic and corrosion-resistant mica tape |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115519855A (en) * | 2022-10-08 | 2022-12-27 | 江苏安东电工材料有限公司 | Preparation method of fire-resistant mica tape for fire-resistant wire |
| CN116344127A (en) * | 2023-05-04 | 2023-06-27 | 广东森杨线缆材料科技有限公司 | Production method and formula of composite mica for cables |
Citations (4)
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| JPH10112218A (en) * | 1996-10-09 | 1998-04-28 | Nippon Rika Kogyosho:Kk | Laminated mica tape and its manufacture |
| CN106433031A (en) * | 2016-09-07 | 2017-02-22 | 安徽金生金世电子科技有限公司 | Modified glass fiber and preparation method thereof |
| CN108083683A (en) * | 2017-12-23 | 2018-05-29 | 仇颖超 | A kind of preparation method of high heat conduction high temperature resistant type mica tape |
| CN109852195A (en) * | 2019-01-12 | 2019-06-07 | 陈可 | A kind of preparation method of anti-static coatings |
-
2021
- 2021-01-28 CN CN202110116040.2A patent/CN112951525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10112218A (en) * | 1996-10-09 | 1998-04-28 | Nippon Rika Kogyosho:Kk | Laminated mica tape and its manufacture |
| CN106433031A (en) * | 2016-09-07 | 2017-02-22 | 安徽金生金世电子科技有限公司 | Modified glass fiber and preparation method thereof |
| CN108083683A (en) * | 2017-12-23 | 2018-05-29 | 仇颖超 | A kind of preparation method of high heat conduction high temperature resistant type mica tape |
| CN109852195A (en) * | 2019-01-12 | 2019-06-07 | 陈可 | A kind of preparation method of anti-static coatings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115519855A (en) * | 2022-10-08 | 2022-12-27 | 江苏安东电工材料有限公司 | Preparation method of fire-resistant mica tape for fire-resistant wire |
| CN116344127A (en) * | 2023-05-04 | 2023-06-27 | 广东森杨线缆材料科技有限公司 | Production method and formula of composite mica for cables |
| CN116344127B (en) * | 2023-05-04 | 2023-11-21 | 广东森杨线缆材料科技有限公司 | Production method and formula of composite mica for cables |
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