CN103725180A - C-level polyurethane wire enamel and preparation method thereof - Google Patents
C-level polyurethane wire enamel and preparation method thereof Download PDFInfo
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- CN103725180A CN103725180A CN201310599002.2A CN201310599002A CN103725180A CN 103725180 A CN103725180 A CN 103725180A CN 201310599002 A CN201310599002 A CN 201310599002A CN 103725180 A CN103725180 A CN 103725180A
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Abstract
The invention discloses C-level polyurethane wire enamel which is characterized by being prepared by raw materials in parts (kilogram) by weight as follows: 12-15 parts of polyester polyol, 12-14 parts of triglycidyl isocyanurate, 4-5 parts of cobalt naphthenate, 13-16 parts of nylon 11, 2-3 parts of methylene diphenyl diisocyanatev(MDI), 7-9 parts of ethylene glycol, 2-3 parts of tributyl tin chloride, 2-3 parts of polyvinyl alcohol, 4-5 parts of coumarone, 1-2 parts of an accelerator DM, 7-9 parts of auxiliaries, 80-90 parts of cresol and 100-110 parts of dimethylbenzene. The polyurethane wire enamel prepared with the method has high heat resistant performance, reaches C level for the heat resistant level, and has good tin solderability and physical properties.
Description
Technical field
The present invention relates to a kind of wire enamel, especially a kind of C level polyurethane enamelled wire paint and preparation method thereof.
Background technology
Enameled wire is a kind of electrical material, and it is at the high-strength insulating layer of a circular copper line surface processing thin layer, plays the effect with external insulation.By specification, can be processed into than hair thin lousiness line also, as thick cotton covered wire as thumb.Enameled wire has good insulation effect and waterproof ability.Aspect electrical equipment application very extensive, as electric motor, generator, water pump, electro-magnet, welding machine, household electrical appliance, cableless communication, loud speaker, tg, transformer etc.Wire enamel is the necessary insulating material of producing enameled wire, wire enamel requires to have good tack, physical strength, insulating property, resistance toheat, wear resisting property, salt spray resistance and adverse environment resistant performance etc., but there is thermotolerance, wear no resistance in common wire enamel, insufficient strength, heat-resisting level be lower than the problems such as 120 ℃, is difficult to meet the requirement of varying environment.Need to improve the formula of wire enamel and production technique, further improve the performance of enamel-cover paint, reduce its production cost.
Summary of the invention
Object of the present invention is just to provide a kind of C level polyurethane enamelled wire paint and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of C level polyurethane enamelled wire paint, it is characterized in that, by following weight part (kilogram) raw material make: polyester polyol 12-15, triglycidyl isocyanurate 12-14, cobalt naphthenate 4-5, nylon 11 13-16, '-diphenylmethane diisocyanate 2-3, ethylene glycol 7-9, tributyltin chloride 2-3, polyvinyl alcohol 2-3, coumarone 4-5, altax 1-2, auxiliary agent 7-9, M-and P-cresols 80-90, dimethylbenzene 100-110;
Described auxiliary agent is made by following raw materials in part by weight: nano mica powder 0.2-0.3, Di(dioctylpyrophosphato) ethylene titanate 3-4, cobalt naphthenate 1-2, triethyl citrate 5-8, linking agent TAC1-2,1,6 hexanediyl ester 10-12, Tenox PG 3-4, coix seed oil 2-3; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.
The preparation method of described C level polyurethane enamelled wire paint, is characterized in that comprising the following steps:
(1), take in dimethylbenzene, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 44-55 ℃, add nylon 11, stir and be heated to 135-195 ℃, after dissolving completely to nylon 11, add again ethylene glycol, polyester polyol, polyvinyl alcohol, cobalt naphthenate, insulation 4-5 hour;
(2), step (1) reaction mass is cooled to 55-85 ℃, add triglycidyl isocyanurate, '-diphenylmethane diisocyanate, tributyltin chloride, coumarone, auxiliary agent, keep temperature, stirring reaction 2-3 hour;
(3) add leftover materials, again, be warming up to 120-135 ℃, continue stirring reaction 2-3 hour;
(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.
The present invention has following beneficial effect: the polyurethane wire enamel that the method makes has very high resistance toheat, temperature classification reaches C level, and there is good solderability and physicals, solved that insulated wire is withstand voltage not up to standard all the time, the difficult problem that hot stamping is not up to standard, resistance to pressure is good, and pin hole is controlled well.
Embodiment
Described C level polyurethane enamelled wire paint be by following weight part (kilogram) raw material make: polyester polyol 12, triglycidyl isocyanurate 12, cobalt naphthenate 4, nylon 11 13, '-diphenylmethane diisocyanate 3, ethylene glycol 9, tributyltin chloride 2, polyvinyl alcohol 3, coumarone 4, altax 1, auxiliary agent 9, M-and P-cresols 80, dimethylbenzene 100;
Described auxiliary agent by following weight part (kilogram) raw material makes: nano mica powder 0.2, Di(dioctylpyrophosphato) ethylene titanate 4, cobalt naphthenate 2, triethyl citrate 5, linking agent TAC1,1,6 hexanediyl ester 10, Tenox PG 4, coix seed oil 3; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.
Preparation method comprises the following steps:
(1), take in dimethylbenzene, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 44-55 ℃, add nylon 11, stir and be heated to 135-195 ℃, after dissolving completely to nylon 11, add again ethylene glycol, polyester polyol, polyvinyl alcohol, cobalt naphthenate, insulation 4-5 hour;
(2), step (1) reaction mass is cooled to 55-85 ℃, add triglycidyl isocyanurate, '-diphenylmethane diisocyanate, tributyltin chloride, coumarone, auxiliary agent, keep temperature, stirring reaction 2-3 hour;
(3) add leftover materials, again, be warming up to 120-135 ℃, continue stirring reaction 2-3 hour;
(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.
Use paint of the present invention wire rod main performance index processed as follows:
1, tack is good;
2, temperature classification >=180 ℃, thermal shocking reaches 230 ℃ of paint films and does not ftracture;
3, transformer oil resistant is 1200 hours/105 ℃, and paint film is without damage.
Claims (3)
1. a C level polyurethane enamelled wire paint, it is characterized in that, by following weight part (kilogram) raw material make: polyester polyol 12-15, triglycidyl isocyanurate 12-14, cobalt naphthenate 4-5, nylon 11 13-16, '-diphenylmethane diisocyanate 2-3, ethylene glycol 7-9, tributyltin chloride 2-3, polyvinyl alcohol 2-3, coumarone 4-5, altax 1-2, auxiliary agent 7-9, M-and P-cresols 80-90, dimethylbenzene 100-110.
2. auxiliary agent according to claim 1 is made by following raw materials in part by weight: nano mica powder 0.2-0.3, Di(dioctylpyrophosphato) ethylene titanate 3-4, cobalt naphthenate 1-2, triethyl citrate 5-8, linking agent TAC1-2,1,6 hexanediyl ester 10-12, Tenox PG 3-4, coix seed oil 2-3; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.
3. the preparation method of a kind of C level polyurethane enamelled wire paint according to claim 1, is characterized in that comprising the following steps:
(1), take in dimethylbenzene, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 44-55 ℃, add nylon 11, stir and be heated to 135-195 ℃, after dissolving completely to nylon 11, add again ethylene glycol, polyester polyol, polyvinyl alcohol, cobalt naphthenate, insulation 4-5 hour;
(2), step (1) reaction mass is cooled to 55-85 ℃, add triglycidyl isocyanurate, '-diphenylmethane diisocyanate, tributyltin chloride, coumarone, auxiliary agent, keep temperature, stirring reaction 2-3 hour;
(3) add leftover materials, again, be warming up to 120-135 ℃, continue stirring reaction 2-3 hour;
(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599002.2A CN103725180A (en) | 2013-11-25 | 2013-11-25 | C-level polyurethane wire enamel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599002.2A CN103725180A (en) | 2013-11-25 | 2013-11-25 | C-level polyurethane wire enamel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN103725180A true CN103725180A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310599002.2A Pending CN103725180A (en) | 2013-11-25 | 2013-11-25 | C-level polyurethane wire enamel and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597815A (en) * | 2004-08-03 | 2005-03-23 | 中国化工建设总公司常州涂料化工研究院 | Paint for H grade polyurethane enamelled wire with good saline water needle performace capable of directing welding at low temp. |
| CN101029203A (en) * | 2007-02-08 | 2007-09-05 | 常熟理工学院 | Production of cryogenic direct-welding polyurethane envelope without pinhole |
| CN101030463A (en) * | 2007-01-24 | 2007-09-05 | 兴宁市金雁电工有限公司 | Production of C-level polyurethane enamelled wire |
| US20120045571A1 (en) * | 2009-02-20 | 2012-02-23 | Elantas Gmbh | Eco-friendly solderable wire enamel |
| CN102618160A (en) * | 2012-03-16 | 2012-08-01 | 丹阳四达化工有限公司 | Method for synthesizing C-level polyurethane wire enamel |
| CN103289556A (en) * | 2011-06-09 | 2013-09-11 | 常州虹波涂料有限公司 | Straight welded welding-slag-free wire enamel |
-
2013
- 2013-11-25 CN CN201310599002.2A patent/CN103725180A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597815A (en) * | 2004-08-03 | 2005-03-23 | 中国化工建设总公司常州涂料化工研究院 | Paint for H grade polyurethane enamelled wire with good saline water needle performace capable of directing welding at low temp. |
| CN101030463A (en) * | 2007-01-24 | 2007-09-05 | 兴宁市金雁电工有限公司 | Production of C-level polyurethane enamelled wire |
| CN101029203A (en) * | 2007-02-08 | 2007-09-05 | 常熟理工学院 | Production of cryogenic direct-welding polyurethane envelope without pinhole |
| US20120045571A1 (en) * | 2009-02-20 | 2012-02-23 | Elantas Gmbh | Eco-friendly solderable wire enamel |
| CN103289556A (en) * | 2011-06-09 | 2013-09-11 | 常州虹波涂料有限公司 | Straight welded welding-slag-free wire enamel |
| CN102618160A (en) * | 2012-03-16 | 2012-08-01 | 丹阳四达化工有限公司 | Method for synthesizing C-level polyurethane wire enamel |
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