CN112226154A - High-strength polyesterimide wire enamel and preparation method thereof - Google Patents
High-strength polyesterimide wire enamel and preparation method thereof Download PDFInfo
- Publication number
- CN112226154A CN112226154A CN202011123812.7A CN202011123812A CN112226154A CN 112226154 A CN112226154 A CN 112226154A CN 202011123812 A CN202011123812 A CN 202011123812A CN 112226154 A CN112226154 A CN 112226154A
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- China
- Prior art keywords
- strength
- wire enamel
- polyesterimide
- solvent
- polyesterimide wire
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
Abstract
The invention provides high-strength polyesterimide wire enamel and a preparation method thereof, belonging to the field of wire enamel. The paint comprises the following components in proportion: 30-45% of a seik modified polyesterimide resin, 25-30% of cresol, 1-3% of carbon fiber powder, 20-35% of a solvent and 9-20% of a diluent. The preparation method comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide, uniformly stirring, slowly heating for reaction, then cooling, adding carbon fiber powder, a solvent and a diluent, and uniformly stirring to obtain the material. The high-strength polyesterimide wire enamel disclosed by the invention is simple in formula and preparation process, high in film strength, good in heat resistance and has a large-scale marketization popularization prospect.
Description
Technical Field
The invention relates to the field of wire enamel, in particular to high-strength polyesterimide wire enamel and a preparation method thereof.
Background
The enameled wire is a main raw material of products such as motors, electric appliances and household appliances. In recent years, the high-end motor manufacturing industry tends to be miniaturized, lightened and efficient, and the change puts higher demands on insulating materials, wherein the important point is that the winding speed is continuously improved due to the improvement of the production efficiency, and meanwhile, the smaller volume and the higher groove filling rate cause the motor to have larger mechanical acting forces such as scraping, extruding and the like on the enameled wire in the production and assembly process, so that the enameled wire insulating paint film is easy to damage, mechanical damage is caused, and the defective rate of the motor is increased. Therefore, research and development of high strength wire enamel is necessary.
The unidirectional paint scraping performance of the enameled wire is an important index for representing the paint film strength of the enameled wire, and the testing principle is that the acting force is gradually increased along the advancing direction of paint scraping according to the lever principle until the paint film is scraped. By compounding the carbon fiber material and the organic polymer material, in addition, the carbon fiber material is directionally arranged along the flow direction of the insulating varnish in the wire enamel coating process, so that the strength of the insulating varnish film of the wire enamel can be obviously improved.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide the high-strength polyesterimide wire enamel and the preparation method thereof, the formula and the preparation process are simple, the cost is low, the strength of a paint film is high, and the wire enamel has a large-scale marketization popularization prospect.
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 30-45% of a seik modified polyesterimide resin, 20-30% of cresol, 1-3% of carbon fiber powder, 20-35% of a solvent and 9-20% of a diluent.
The solvent comprises any one or a mixture of several of phenol, cresol, xylenol, NMP, DMAC and DMF.
The diluent comprises any one or a mixture of several of xylene, 1000# solvent oil and 1500# solvent oil.
The invention also provides a preparation method of the high-strength polyesterimide wire enamel, which comprises the following steps: cresol and a monomer for synthesizing the seek modified polyesterimide in a given proportion are mixed and stirred uniformly, carbon fiber powder, a solvent and a diluent are added after a temperature rise reaction, and the mixture is stirred uniformly to obtain the material.
Preferably, the temperature rise process is controlled to be 2-10 ℃/min, the reaction temperature is not more than 220 ℃ at most, and the reaction time is about 10-40 h.
Preferably, the carbon fiber powder, the solvent and the diluent are added firstly and then the solvent and the diluent are added.
More preferably, the solvent is added first followed by the diluent.
According to the high-strength polyesterimide wire enamel, the carbon fiber powder is introduced during preparation, the structural stability is enhanced, the strength of the polyesterimide wire enamel film is obviously improved by the directionally arranged carbon fibers, the unidirectional paint scraping performance can reach more than 20N, the preparation process is simple, the cost is low, and the preparation method is suitable for large-scale popularization and application.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 40% of a seik modified polyesterimide resin, 25% of cresol, 1% of carbon fiber powder, 20% of phenol and 14% of xylene.
The preparation method of the high-strength polyesterimide wire enamel comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide in the proportion in a reaction kettle, uniformly stirring, slowly heating to 220 ℃ at a heating rate of 10 ℃/min, reacting for 20 hours, then cooling, sequentially adding carbon fiber powder, phenol and xylene in the proportion, and uniformly stirring to obtain the high-strength polyesterimide wire enamel N1.
Example 2
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 35% of a seik modified polyesterimide resin, 20% of cresol, 1.5% of carbon fiber powder, 30% of NMP and 13.5% of 1500# solvent oil.
The preparation method of the high-strength polyesterimide wire enamel comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide in the proportion in a reaction kettle, uniformly stirring, slowly heating to 220 ℃ at a heating rate of 5 ℃/min, reacting for 30 hours, then cooling, sequentially adding the carbon fiber powder, NMP and 1500# solvent oil in the proportion, and uniformly stirring to obtain the high-strength polyesterimide wire enamel N2.
Example 3
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 45% of a seik modified polyesterimide resin, 20% of cresol, 3% of carbon fiber powder, and the mass ratio is 1: 2, 20 percent of mixture of xylenol and phenol and 12 percent of No. 1000 solvent oil.
The preparation method of the high-strength polyesterimide wire enamel comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide in the proportion in a reaction kettle, uniformly stirring, slowly heating to 220 ℃ at a heating rate of 8 ℃/min, reacting for 40 hours, then cooling, and sequentially adding carbon fiber powder in the proportion, wherein the mass ratio of the carbon fiber powder to the monomer is 1: 2 and uniformly stirring the mixture of the xylenol and the phenol and the No. 1000 solvent oil to obtain the high-strength polyesterimide wire enamel N3.
Example 4
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 30% of a seik modified polyesterimide resin, 30% of cresol, 1% of carbon fiber powder, 30% of DMAC (dimethylacetamide) and 9% of 1000# solvent oil.
The preparation method of the high-strength polyesterimide wire enamel comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide in the proportion in a reaction kettle, uniformly stirring, slowly heating to 220 ℃ at a heating rate of 10 ℃/min, reacting for 35 hours, then cooling, sequentially adding the carbon fiber powder, DMAC and 1000# solvent oil in the proportion, and uniformly stirring to obtain the high-strength polyesterimide wire enamel N4.
Example 5
A high-strength polyesterimide wire enamel comprises the following components in percentage by weight: 35% of a seik modified polyesterimide resin, 25% of cresol, 2% of carbon fiber powder, 20% of phenol and 18% of 1500# solvent oil.
The preparation method of the high-strength polyesterimide wire enamel comprises the steps of mixing cresol and a monomer for synthesizing the seek modified polyesterimide in the proportion in a reaction kettle, uniformly stirring, slowly heating to 220 ℃ at a heating rate of 2 ℃/min, reacting for 25 hours, then cooling, sequentially adding the carbon fiber powder, the phenol and the 1500# solvent oil in the proportion, and uniformly stirring to obtain the high-strength polyesterimide wire enamel N5.
The performances of the examples are shown in the following table 1, and the high-strength polyesterimide wire enamel prepared by the invention has high film strength, and the highest one-way paint scraping performance can reach 28.9N.
TABLE 1 unidirectional scrape performance of high strength polyesterimide wire enamels prepared in examples 1-5
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (8)
1. A high-strength polyesterimide wire enamel is characterized by comprising the following components in percentage by weight: 30-45% of a seik modified polyesterimide resin, 25-30% of cresol, 1-3% of carbon fiber powder, 20-35% of a solvent and 9-20% of a diluent.
2. The high strength polyesterimide wire enamel in accordance with claim 1 wherein said solvent comprises any one or a mixture of phenol, cresol, xylenol, NMP, DMAC, DMF.
3. The high strength polyesterimide wire enamel in accordance with claim 1 wherein said diluent comprises any one or a mixture of xylene, mineral spirits # 1000, mineral spirits # 1500.
4. A preparation method of high-strength polyesterimide wire enamel is characterized by mixing cresol and a monomer for synthesizing the seek modified polyesterimide, uniformly stirring, slowly heating for reaction, then cooling, adding carbon fiber powder, a solvent and a diluent, and uniformly stirring to obtain the high-strength polyesterimide wire enamel.
5. The method for preparing high strength polyesterimide wire enamel according to claim 4, wherein the temperature rising process is controlled at 2-10 ℃/min.
6. The method for preparing high strength polyesterimide wire enamel according to claim 4 wherein the temperature of the reaction is not more than 220 ℃ at the most.
7. The method for preparing high strength polyesterimide wire enamel according to claim 4, wherein the reaction time is 10-40 h.
8. The method for preparing high-strength polyesterimide wire enamel according to claim 4, wherein the carbon fiber powder, the solvent and the diluent are added first and then the solvent and the diluent are added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123812.7A CN112226154A (en) | 2020-10-20 | 2020-10-20 | High-strength polyesterimide wire enamel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123812.7A CN112226154A (en) | 2020-10-20 | 2020-10-20 | High-strength polyesterimide wire enamel and preparation method thereof |
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| CN112226154A true CN112226154A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011123812.7A Pending CN112226154A (en) | 2020-10-20 | 2020-10-20 | High-strength polyesterimide wire enamel and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801570A (en) * | 2021-09-17 | 2021-12-17 | 恒亚电工(昆山)有限公司 | Polyesterimide enameled wire and production process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000351936A (en) * | 1999-06-14 | 2000-12-19 | Dainichiseika Color & Chem Mfg Co Ltd | Insulating coating |
| CN102433066A (en) * | 2011-08-03 | 2012-05-02 | 上海晟然绝缘材料有限公司 | Preparation method of high-heat-resistance and high-wear-resistance polyesterimide enameled wire insulating paint |
| JP2014118563A (en) * | 2012-12-18 | 2014-06-30 | Samsung Electro-Mechanics Co Ltd | Insulating layer composition, substrate including insulating layer using the same, and method for manufacturing the substrate |
| CN107903693A (en) * | 2017-10-24 | 2018-04-13 | 李兴奇 | A kind of power equipment coatings and preparation method thereof |
| CN108864898A (en) * | 2018-06-28 | 2018-11-23 | 黄春梅 | A kind of epoxy ceramic coating and preparation method thereof of anti-cracking |
| CN109251657A (en) * | 2018-08-20 | 2019-01-22 | 安徽晟然绝缘材料有限公司 | A kind of high softening breakdown match gram modified poly ester imide wire coating enamel and preparation method thereof |
| CN110684461A (en) * | 2019-10-30 | 2020-01-14 | 安徽晟然绝缘材料有限公司 | Layered inorganic nano-material modified corona-resistant polyesterimide wire enamel and preparation method thereof |
| CN110713788A (en) * | 2019-10-30 | 2020-01-21 | 安徽晟然绝缘材料有限公司 | High-breakdown-voltage polyesterimide wire enamel and preparation method thereof |
-
2020
- 2020-10-20 CN CN202011123812.7A patent/CN112226154A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000351936A (en) * | 1999-06-14 | 2000-12-19 | Dainichiseika Color & Chem Mfg Co Ltd | Insulating coating |
| CN102433066A (en) * | 2011-08-03 | 2012-05-02 | 上海晟然绝缘材料有限公司 | Preparation method of high-heat-resistance and high-wear-resistance polyesterimide enameled wire insulating paint |
| JP2014118563A (en) * | 2012-12-18 | 2014-06-30 | Samsung Electro-Mechanics Co Ltd | Insulating layer composition, substrate including insulating layer using the same, and method for manufacturing the substrate |
| CN107903693A (en) * | 2017-10-24 | 2018-04-13 | 李兴奇 | A kind of power equipment coatings and preparation method thereof |
| CN108864898A (en) * | 2018-06-28 | 2018-11-23 | 黄春梅 | A kind of epoxy ceramic coating and preparation method thereof of anti-cracking |
| CN109251657A (en) * | 2018-08-20 | 2019-01-22 | 安徽晟然绝缘材料有限公司 | A kind of high softening breakdown match gram modified poly ester imide wire coating enamel and preparation method thereof |
| CN110684461A (en) * | 2019-10-30 | 2020-01-14 | 安徽晟然绝缘材料有限公司 | Layered inorganic nano-material modified corona-resistant polyesterimide wire enamel and preparation method thereof |
| CN110713788A (en) * | 2019-10-30 | 2020-01-21 | 安徽晟然绝缘材料有限公司 | High-breakdown-voltage polyesterimide wire enamel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801570A (en) * | 2021-09-17 | 2021-12-17 | 恒亚电工(昆山)有限公司 | Polyesterimide enameled wire and production process thereof |
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Application publication date: 20210115 |