CN109096875A - A kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding - Google Patents
A kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding Download PDFInfo
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- CN109096875A CN109096875A CN201810841094.3A CN201810841094A CN109096875A CN 109096875 A CN109096875 A CN 109096875A CN 201810841094 A CN201810841094 A CN 201810841094A CN 109096875 A CN109096875 A CN 109096875A
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- Prior art keywords
- wire enamel
- welding
- modified polyurethane
- polyurethane wire
- cryogenic direct
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
Abstract
The invention discloses a kind of wire enamel production technology, specifically a kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding suitable for high speed enamelling machine.It includes glycerol 320-330g, ethylene glycol 170-180g, trimellitic anhydride 280-300g, diphenyl-methane 170-180 g, dimethylbenzene 420-440 g, M-and P-cresols 310-330g.After above-mentioned formula and method, due to reasonable selection various composition formula and define the ratio of various composition formula, in addition, being added especially in manufacturing process by substep and optimizing matching to technique, especially to the heating and cooling control process of temperature, so that the wire enamel prepared, it is not only able to reduce scolding tin temperature, by verification experimental verification, scolding tin temperature is 310 DEG C, and product quality effectively improves, and effect is very prominent.
Description
Technical field
The present invention relates to a kind of wire enamel production technology, the poly- ammonia of specifically a kind of modification suitable for cryogenic direct-welding
Ester wire enamel and preparation method thereof.
Background technique
Enameled wire is mainly used as winding coil, and effect is to realize that " electricity-magnetic " energy turns during component work
It changes, so enameled wire is also electromagnetic wire.The effect of wire enamel be make in winding to generate between conducting wire and conducting wire one layer it is good
Insulating layer, to prevent the circulation of electric current.Wire enamel belongs to electric insulation paint, in addition to requiring good dielectricity, chemistry
Outside performance, it is necessary to which there is excellent mechanical performance and hot property.With industrial electrical equipment, household electrical appliance, telecommunication, electronic product etc.
Rapid development, enameled wire market demand sharply expanded in recent years, this brings broader application to enameled wire industry and leads
Domain and market.
Currently used wire enamel type has acetal, polyurethane, polyester, polyester-imide, polyamidoimide, polyester-
Amide imines etc..However, due to the limitation of its products material and production method, being applicable in for polyurethane wire enamel
General 360 DEG C of scolding tin temperature or more in superfine wire can reach requirement, after thus welding properties of product are reduced,
The problems such as poor there is product quality.
Summary of the invention
It can reduce scolding tin temperature the technical problem to be solved in the present invention is to provide a kind of, improve product quality and be suitable for
Modified polyurethane wire enamel of cryogenic direct-welding and preparation method thereof.
In order to solve the above-mentioned technical problem, the modified polyurethane wire enamel suitable for cryogenic direct-welding of the invention, including
Glycerol 320-330g, ethylene glycol 170-180g, trimellitic anhydride 280-300g, diphenyl-methane 170-180 g, dimethylbenzene 420-
440 g, M-and P-cresols 310-330g, trimethylolpropane 530-570 g.
A kind of production method of such as above-mentioned modified polyurethane wire enamel suitable for cryogenic direct-welding, concrete operation step is such as
Under:
A, glycerol 320-330g, ethylene glycol 170-180g, trimellitic anhydride 280-300g is added under normal temperature condition into reaction kettle,
Diphenyl-methane 170-180 g, dimethylbenzene 420-440 g, M-and P-cresols 310-330g then heat to 110-130 DEG C, see reaction
Whether liquid is distillated in kettle, normally goes out liquid if having, then be to slowly warm up to 200-220 DEG C, during which need 15-17 hours；
B, it is cooled to 120-140 DEG C, trimethylolpropane 530-570 g is then added, then heats to 170-190 DEG C, is kept
Temperature 3-5 hours；
C, it after being warming up to 220-240 DEG C again, is vacuumized.
In the step A, if continuing to be kept for 110-130 DEG C without normally going out liquid, until distillating liquid.
After above-mentioned formula and method, due to reasonable selection various composition formula and define that various composition is matched
The ratio of side, in addition, being added especially in manufacturing process by substep and optimizing matching to technique, especially to temperature
Heating and cooling control process be not only able to reduce scolding tin temperature, scolding tin temperature is lower than so that the wire enamel prepared
Traditional soldering temperature, and product quality effectively improves, and effect is very prominent.
Specific embodiment
With reference to embodiment, to the modified polyurethane wire enamel suitable for cryogenic direct-welding of the invention and its
Production method is described in further detail.
Embodiment one:
The production method of the modified polyurethane wire enamel suitable for cryogenic direct-welding of the present embodiment, specific steps are as follows:
A, glycerol 320g, ethylene glycol 170g, trimellitic anhydride 280g, diphenyl-methane is added under normal temperature condition into reaction kettle
170g, dimethylbenzene 420 g, M-and P-cresols 310g then heat to 110 DEG C, see in reaction kettle whether there is liquid, normally go out if having
Liquid, then 200 DEG C are to slowly warm up to, during which need 15 hours；
B, 120 DEG C are cooled to, 530 g of orthoformic acid is then added, then heats to 170 DEG C, is kept for temperature 3 hours；
C, it after being warming up to 220 DEG C again, is vacuumized.
Embodiment two:
The production method of the modified polyurethane wire enamel suitable for cryogenic direct-welding of the present embodiment, specific steps are as follows:
A, glycerol 322g, ethylene glycol 172g, trimellitic anhydride 289g, diphenyl-methane 175 is added under normal temperature condition into reaction kettle
G, 430 g of dimethylbenzene, M-and P-cresols 320g then heat to 120 DEG C, see in reaction kettle whether there is liquid, normally go out liquid if having,
It is to slowly warm up to 210 DEG C again, during which needs 16 hours；
B, 130 DEG C are cooled to, 550 g of orthoformic acid is then added, then heats to 180 DEG C, is kept for temperature 4 hours；
C, it after being warming up to 230 DEG C again, is vacuumized.
Wherein, in step A, if continuing to be kept for 110-130 DEG C without normally going out liquid, until distillating liquid.
By verification experimental verification, using product made of the present embodiment, scolding tin temperature is 310 DEG C, and product quality obtains
It effectively improves,
Embodiment three:
The production method of the modified polyurethane wire enamel suitable for cryogenic direct-welding of the present embodiment, specific steps are as follows:
A, glycerol 330g, ethylene glycol 180g, trimellitic anhydride 300g, diphenyl-methane 180 is added under normal temperature condition into reaction kettle
G, 440 g of dimethylbenzene, M-and P-cresols 330g then heat to 130 DEG C, see in reaction kettle whether there is liquid, normally go out liquid if having,
It is to slowly warm up to 220 DEG C again, during which needs 17 hours；
B, 140 DEG C are cooled to, 570 g of orthoformic acid is then added, then heats to 190 DEG C, is kept for temperature 5 hours；
C, it after being warming up to 240 DEG C again, is vacuumized.
Claims (3)
1. a kind of modified polyurethane wire enamel suitable for cryogenic direct-welding, it is characterised in that: including glycerol 320-330g, second two
Alcohol 170-180g, trimellitic anhydride 280-300g, diphenyl-methane 170-180 g, dimethylbenzene 420-440 g, M-and P-cresols 310-
330g, orthoformic acid 530-570 g.
2. a kind of production method of such as above-mentioned modified polyurethane wire enamel suitable for cryogenic direct-welding, which is characterized in that specific
Operating procedure is as follows:
A, glycerol 320-330g, ethylene glycol 170-180g, trimellitic anhydride 280-300g is added under normal temperature condition into reaction kettle,
Diphenyl-methane 170-180 g, dimethylbenzene 420-440 g, M-and P-cresols 310-330g then heat to 110-130 DEG C, see reaction
Whether there is liquid in kettle, normally goes out liquid if having, then be to slowly warm up to 200-220 DEG C, during which need 15-17 hours；
B, it is cooled to 120-140 DEG C, orthoformic acid 530-570 g is then added, then heats to 170-190 DEG C, keeps temperature
Degree 3-5 hours；
C, it after being warming up to 220-240 DEG C, is vacuumized.
3. according to the production method for the modified polyurethane wire enamel for being suitable for cryogenic direct-welding described in claim 2, feature exists
In: in the step A, if continuing to be kept for 110-130 DEG C without normally going out liquid, until distillating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841094.3A CN109096875A (en) | 2018-07-27 | 2018-07-27 | A kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841094.3A CN109096875A (en) | 2018-07-27 | 2018-07-27 | A kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding |
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| Publication Number | Publication Date |
|---|---|
| CN109096875A true CN109096875A (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810841094.3A Pending CN109096875A (en) | 2018-07-27 | 2018-07-27 | A kind of modified polyurethane wire enamel and preparation method thereof suitable for cryogenic direct-welding |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043710A1 (en) * | 2007-10-04 | 2009-04-09 | Elantas Gmbh | Wire enamel adhering well to electrical conductors |
| CN103965428A (en) * | 2014-05-23 | 2014-08-06 | 江苏恒兴制漆有限公司 | Polyurethane polyalcohol for producing low-temperature soldering tin F-grade polyurethane wire enamel and preparation technique thereof |
| CN104592881A (en) * | 2014-12-30 | 2015-05-06 | 东莞市高能磁电技术有限公司 | Synthetic method of solderable polyurethane wire enamel |
| CN104726000A (en) * | 2015-03-18 | 2015-06-24 | 常熟理工学院 | 180-grade straight welded polyurethane wire enamel and preparation method thereof |
-
2018
- 2018-07-27 CN CN201810841094.3A patent/CN109096875A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043710A1 (en) * | 2007-10-04 | 2009-04-09 | Elantas Gmbh | Wire enamel adhering well to electrical conductors |
| CN103965428A (en) * | 2014-05-23 | 2014-08-06 | 江苏恒兴制漆有限公司 | Polyurethane polyalcohol for producing low-temperature soldering tin F-grade polyurethane wire enamel and preparation technique thereof |
| CN104592881A (en) * | 2014-12-30 | 2015-05-06 | 东莞市高能磁电技术有限公司 | Synthetic method of solderable polyurethane wire enamel |
| CN104726000A (en) * | 2015-03-18 | 2015-06-24 | 常熟理工学院 | 180-grade straight welded polyurethane wire enamel and preparation method thereof |
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Application publication date: 20181228 |
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| RJ01 | Rejection of invention patent application after publication |