CN104449344A - Wear-resistant polyamidoimide enamelled wire paint preparation method - Google Patents
Wear-resistant polyamidoimide enamelled wire paint preparation method Download PDFInfo
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- CN104449344A CN104449344A CN201310421069.7A CN201310421069A CN104449344A CN 104449344 A CN104449344 A CN 104449344A CN 201310421069 A CN201310421069 A CN 201310421069A CN 104449344 A CN104449344 A CN 104449344A
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- Prior art keywords
- enamelled wire
- preparation
- polyamide
- polyamidoimide
- hexafluoroisopropylidenyl
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—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 C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/14—Polyamide-imides
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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to a wear resistant polyamidoimide enamelled wire paint preparation method, which comprises the following steps: 1)preparation method of polyamidoimide resin: employing dimethyl acetamide, 4,4'-diaminodiphenyl ether, 4,4'-(hexafluoroisopropylidene)diphenylamine, pyromellitic dianhydride, 4,4'-(hexafluoroisopropylidene)diphthalic anhydride for resin synthesis, adding dimethyl acetamide, 4,4'-diaminodiphenyl ether and 4,4'-(hexafluoroisopropylidene)diphenylamine while stirring, adding pyromellitic dianhydride and 4,4'-(hexafluoroisopropylidene)diphthalic anhydride after dissolving, slowly heating to 100 DEG C, stirring for reacting until color is transparent; and 2)preparation method of the enamelled wire paint: taking polyamidoimide resin and xylene, uniformly stirring to obtain the self-lubricating polyamidoimide enamelled wire paint. According to the invention, a fluorine-containing group is introduced in the polyamidoimide enamelled wire, maximum static friction coefficient of the enamelled wire is reduced, lubrication effect of the produced enamelled wire is good, and the maximum static friction coefficient is about 0.040.
Description
Technical field
The present invention relates to the preparation of wire enamel, be specially a kind of preparation method of wear-resisting polyamide-imide enamelled wire varnishes.
Background technology
Wire enamel is the indispensable electrical insulating coating being applied to electrical equipment, is one of critical materials controlling electric installation economic and technical norms and operation life.Along with epoch and expanding economy, all requirements at the higher level are proposed to the temperature resistant grade of enameled wire in military and people's livelihood field.
Polyamidoimide paint is the main raw material of universal high-performance composite coating enamel-cover circle, lenticular wire, is a kind of C level high temperature-resistant wire lacquer of high comprehensive performance, is widely used in the manufacture of traction electric machine, sealed electric-motor, the particularly coil of resistance to refrigerant condenser.There is in its backbone structure heat-resisting imide ring and flexible amide group simultaneously, thermotolerance is high, can life-time service at 210 DEG C, there is good mechanical property, dielectric properties, resistance to refrigerant and resistance to chemical corrosion, and have with the binding property of conductor, reelability and wear resistance and significantly promote.
Along with progress and the upgrading of technology, the coil-winding technique of current electrical equipment is widely used High-Speed Automatic winding machine, high-speed winding device rate is generally at 1500-3000rpm, and maximum speed can reach 6000rpm, it is estimated that the demand of current self-lubricant lacquer coated line is more than 20,000 tons.But because enameled wire during coiling can be rubbed and the effect such as impact, the insulation layer of enameled wire is vulnerable to physical abuse, thus cause the decreasing insulating of enameled wire, therefore the oilness of enamelled wire surface and slipperiness are had higher requirement, to reach good coiling performance and winding performance.At present, the enameled wire coefficient of maximum static friction that common polyamide-imide enamelled wire varnishes coats is all more than 0.120, and frictional coefficient is higher, more easily cause the degradation of enameled wire, therefore, need the coefficient of maximum static friction reducing enameled wire, improve the insulativity of enameled wire.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of wear-resisting polyamide-imide enamelled wire varnishes, and the coefficient of maximum static friction of polyamide-imide enamelled wire varnishes prepared by this preparation method is low, high lubricating effect.
For solving the problems of the technologies described above, the invention provides a kind of preparation method of wear-resisting polyamide-imide enamelled wire varnishes, comprising the steps:
(1) preparation method of polyamide-imide resin: adopt N,N-DIMETHYLACETAMIDE, 4, 4'-diaminodiphenyl oxide, 4, 4'-(hexafluoroisopropylidenyl) pentanoic, pyromellitic acid anhydride, 4, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid synthetic resins, wherein 4, 4'-diaminodiphenyl oxide and 4, 4'-(hexafluoroisopropylidenyl) pentanoic two kinds altogether with pyromellitic acid anhydride and 4, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid two kinds mol ratio is altogether 1:1, 4, 4'-diaminodiphenyl oxide and 4, 4'-(hexafluoroisopropylidenyl) pentanoic two kinds is 1:10 with the mol ratio of N,N-DIMETHYLACETAMIDE altogether,
Concrete preparation process: under agitation add N,N-DIMETHYLACETAMIDE, 4,4'-diaminodiphenyl oxide is with 4,4'-(hexafluoroisopropylidenyl) pentanoic, pyromellitic acid anhydride is added with 4 after dissolving, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acids, are slowly warming up to 100 DEG C, and stirring reaction is to transparent;
(2) preparation method of wire enamel: get above-mentioned polyamide-imide resin, dimethylbenzene, wherein the mol ratio of polyamide-imide resin and dimethylbenzene is 20:3 ~ 20:5, stirs and obtains self-lubricating polyamide-imide enamelled wire varnishes.
A kind of wear-resisting polyamide-imide enamelled wire varnishes, it adopts above-mentioned preparation method to obtain.
Technique effect of the present invention: the present invention adopts and introduce fluoro-containing group in polyamide acid imide enamelled wire, and fluorine surface tension is very low, thus reduce the coefficient of maximum static friction of enameled wire, therefore the enameled wire high lubricating effect made, coefficient of maximum static friction is about 0.040, drastically increase the wear resistance of enameled wire, improve coiling performance and winding performance; In addition, the enameled wire that this wire enamel obtains, because the fluorine-containing starting material introduced contain the structure of multiple phenyl ring, adds the rigidity of wire enamel structure, and thus thermotolerance is better, and does not have compatibility problem, wide adaptability.
Embodiment
Embodiment 1
The preparation method of the wear-resisting polyamide-imide enamelled wire varnishes of the present embodiment, comprises the steps:
(1) preparation method of polyamide-imide resin: get N,N-DIMETHYLACETAMIDE 10 parts, 4,4'-diaminodiphenyl oxide 0.9 part, 4,4'-(hexafluoroisopropylidenyl) pentanoic 0.1 part, pyromellitic acid anhydride 0.9 part, 4,4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid 0.1 part, under agitation add N,N-DIMETHYLACETAMIDE, 4,4'-diaminodiphenyl oxide is with 4,4'-(hexafluoroisopropylidenyl) pentanoic, adds pyromellitic acid anhydride with 4,4'-(hexafluoro isopropyl alkene) two anhydride phthalic acids after dissolving, slowly be warming up to 100 DEG C, stirring reaction is to transparent;
(2) preparation method of wire enamel: get above-mentioned polyamide-imide resin 20 parts, dimethylbenzene 5 parts, stirring can obtain self-lubricating and limit to that imide enamelled wire varnishes.
Embodiment 2
The preparation method of the wear-resisting polyamide-imide enamelled wire varnishes of the present embodiment, comprises the steps:
1) preparation method of polyamide-imide resin: get N,N-DIMETHYLACETAMIDE 10 parts, 4,4'-diaminodiphenyl oxide 0.7 part, 4,4'-(hexafluoroisopropylidenyl) pentanoic 0.3 part, pyromellitic acid anhydride 0.7 part, 4,4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid 0.3 part, under agitation add N,N-DIMETHYLACETAMIDE, 4,4'-diaminodiphenyl oxide is with 4,4'-(hexafluoroisopropylidenyl) pentanoic, adds pyromellitic acid anhydride with 4,4'-(hexafluoro isopropyl alkene) two anhydride phthalic acids after dissolving, slowly be warming up to 100 DEG C, stirring reaction is to transparent;
(2) preparation method of wire enamel: get above-mentioned polyamide-imide resin 20 parts, dimethylbenzene 3 parts, stirring can obtain self-lubricating and limit to that imide enamelled wire varnishes.
Comparative example: with common polyamide imide enamelled wire varnishes (as four STAI68 reaching Chemical Co., Ltd.).
The performance test of comparative example and embodiment is as following table.
Claims (1)
1. a preparation method for wear-resisting polyamide-imide enamelled wire varnishes, is characterized in that comprising the steps:
(1) preparation method of polyamide-imide resin: adopt N,N-DIMETHYLACETAMIDE, 4, 4'-diaminodiphenyl oxide, 4, 4'-(hexafluoroisopropylidenyl) pentanoic, pyromellitic acid anhydride, 4, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid synthetic resins, under agitation add N,N-DIMETHYLACETAMIDE, 4, 4'-diaminodiphenyl oxide is with 4, 4'-(hexafluoroisopropylidenyl) pentanoic, pyromellitic acid anhydride is added with 4 after dissolving, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acids, slowly be warming up to 100 DEG C, stirring reaction is to transparent, wherein, 4, 4'-diaminodiphenyl oxide and 4, 4'-(hexafluoroisopropylidenyl) pentanoic two kinds altogether with pyromellitic acid anhydride and 4, 4'-(hexafluoro isopropyl alkene) two anhydride phthalic acid two kinds mol ratio is altogether 1:1, 4, 4'-diaminodiphenyl oxide and 4, 4'-(hexafluoroisopropylidenyl) pentanoic two kinds is 1:10 with the mol ratio of N,N-DIMETHYLACETAMIDE altogether,
(2) preparation method of wire enamel: get above-mentioned polyamide-imide resin, dimethylbenzene, stirs and obtains self-lubricating polyamide-imide enamelled wire varnishes, and wherein, the mol ratio of polyamide-imide resin and dimethylbenzene is 20:3 ~ 20:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310421069.7A CN104449344A (en) | 2013-09-16 | 2013-09-16 | Wear-resistant polyamidoimide enamelled wire paint preparation method |
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| CN201310421069.7A CN104449344A (en) | 2013-09-16 | 2013-09-16 | Wear-resistant polyamidoimide enamelled wire paint preparation method |
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| CN104449344A true CN104449344A (en) | 2015-03-25 |
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| CN201310421069.7A Pending CN104449344A (en) | 2013-09-16 | 2013-09-16 | Wear-resistant polyamidoimide enamelled wire paint preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804503A (en) * | 2015-04-21 | 2015-07-29 | 铜陵精达里亚特种漆包线有限公司 | Corona-proof enameled wire for new energy automobiles and manufacturing method of corona-proof enameled wire |
| CN115926615A (en) * | 2022-11-24 | 2023-04-07 | 江苏四达特材科技有限公司 | High-wear-resistance polyimide wire enamel and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| FR2503723B1 (en) * | 1981-04-08 | 1986-10-24 | Hitachi Chemical Co Ltd | HEAT RESISTANT RESIN COMPOSITION AND INSULATED THREADS THEREWITH |
| JP2007213908A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Cable Ltd | Self-lubricating enamel wire and coating material |
| CN101343435A (en) * | 2007-07-10 | 2009-01-14 | 上海电缆研究所 | Fire resistant insulating varnish and fire resistant non-magnetism varnished wire, and preparation thereof |
| CN102676046A (en) * | 2012-06-05 | 2012-09-19 | 东华大学 | Self-lubricating polyimide wire enamel and preparation method thereof |
| CN102936454A (en) * | 2011-08-16 | 2013-02-20 | 上海晟然绝缘材料有限公司 | Preparation method for self-lubricating polyamide-imide enamelled wire insulated paint synthesized by grafting polymerization |
-
2013
- 2013-09-16 CN CN201310421069.7A patent/CN104449344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2503723B1 (en) * | 1981-04-08 | 1986-10-24 | Hitachi Chemical Co Ltd | HEAT RESISTANT RESIN COMPOSITION AND INSULATED THREADS THEREWITH |
| JP2007213908A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Cable Ltd | Self-lubricating enamel wire and coating material |
| CN101343435A (en) * | 2007-07-10 | 2009-01-14 | 上海电缆研究所 | Fire resistant insulating varnish and fire resistant non-magnetism varnished wire, and preparation thereof |
| CN102936454A (en) * | 2011-08-16 | 2013-02-20 | 上海晟然绝缘材料有限公司 | Preparation method for self-lubricating polyamide-imide enamelled wire insulated paint synthesized by grafting polymerization |
| CN102676046A (en) * | 2012-06-05 | 2012-09-19 | 东华大学 | Self-lubricating polyimide wire enamel and preparation method thereof |
Non-Patent Citations (3)
| Title |
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| 唐松云: "《常用小化工产品生产技术（二）》", 29 February 1996, 广东科技出版社 * |
| 徐又一: "《高分子膜材料》", 30 April 2005, 化学工业出版社 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804503A (en) * | 2015-04-21 | 2015-07-29 | 铜陵精达里亚特种漆包线有限公司 | Corona-proof enameled wire for new energy automobiles and manufacturing method of corona-proof enameled wire |
| CN104804503B (en) * | 2015-04-21 | 2017-12-19 | 铜陵精达里亚特种漆包线有限公司 | Anti- corona enamel-covered wire and its manufacture method available for new-energy automobile |
| CN115926615A (en) * | 2022-11-24 | 2023-04-07 | 江苏四达特材科技有限公司 | High-wear-resistance polyimide wire enamel and preparation method thereof |
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Application publication date: 20150325 |