CN104178022A - Preparation method of heat-resistant imporous enameled wire insulating paint for high speed machines - Google Patents
Preparation method of heat-resistant imporous enameled wire insulating paint for high speed machines Download PDFInfo
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- CN104178022A CN104178022A CN201410345510.2A CN201410345510A CN104178022A CN 104178022 A CN104178022 A CN 104178022A CN 201410345510 A CN201410345510 A CN 201410345510A CN 104178022 A CN104178022 A CN 104178022A
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Abstract
The invention discloses a heat-resistant imporous enameled wire insulating paint for high speed enameling machines, which is prepared from the following components in parts by weight: 40-50 parts of polyester imine resin, 2-5 parts of blocked isocyanate (MDI), 1-5 parts of phenol aldehyde resin, 0.5-3 parts of acrylate and 40-50 parts of solvent. The enameled wire is applicable to high speed enameling machine production. The paint film has the advantages of favorable adhesiveness, favorable flexibility and favorable pinhole performance; and the thermal level can reach Level 200.
Description
Technical field
The present invention relates to a kind of preparation method of insullac, be specifically related to the preparation method of a kind of high speed enamelling machine with high heat-resisting atresia enamelled wire insulated paint.
Background technology
High speed enameled wire is due to single line but burner hearth, and the design of Lian Lalianbao, highly beneficial to the enameled wire of production high-quality.
High speed enamelling machine is due to its process characteristic, higher to the service requirements of insullac.Normal polyester imines enamelled wire insulated paint (DV value is below 60) service condition on middle low-speed device is very good.But the DV value of current high speed enamelling machine has arrived 200 left and right, easily there is surperficial numb skin, jerk disconnected contracting paint, paint film flexibility and the not good phenomenon of tack in conventional polyester imines enamelled wire insulated paint.
Polyester-imide envelope curve insullac is on the basis of Polyester Paint, introduce imine group or introduce match gram simultaneously it is carried out to modification, and object is to improve its thermotolerance.Insulating lacquer layer is due to its outstanding thermotolerance, at sealed electric-motor, and power tool, and the motor of other high temperature classifications, obtained using widely in electric.
Although insulating lacquer layer all can meet most customer requirements at aspects such as electrical property, thermal characteristics, chemical properties, it has following several shortcoming, that is:
One, because the molecule segment of rigid structure in paint film molecular structure is many, the snappiness of the paint film that causes insulating is not good, is embodied in resistance to extension or rubbing saline infusion needle permeability can be not good.Or paint film flexibility is not good.
Two, the tack of paint film and conductor is not good, in IEC60851, the twisting K value of peeling off of regulation insulating lacquer layer is 110, it is 130 left and right that the large activation of normal polyester imines enameled wire reaches K value, but K value is obviously on the low side in the time producing for high speed machine, can only reach reluctantly 110 even lower, only from tensile failure test or tension test, easily occur that contracting paint reveals in copper phenomenon to be confirmed.
Summary of the invention
The object of the invention is to, the preparation method of a kind of high speed enamelling machine with high heat-resisting atresia enamelled wire insulated paint is provided, to overcome the existing above-mentioned shortcoming and defect of prior art.
Of the present inventionly be intended at present overcome the shortcoming in existing insulating lacquer layer insullac performance, provide a kind of paint film tack good, snappiness is good, is adapted to high speed machine and produces, and thermal level is the preparation method of 200 grades of above high heat-resisting atresia enamelled wire insulated paints of high speed enamelling machine.
The technical problem that will solve required for the present invention, can be achieved through the following technical solutions:
As a first aspect of the present invention, high heat-resisting atresia enamelled wire insulated paint for a kind of high speed enamelling machine, is characterized in that, according to parts by weight meter, its formula is:
Wherein, according to parts by weight meter, the composition of described polyester imine resin is:
Wherein, described blocked isocyanate:
Wherein, described solvent is meta-cresol and aromatic solvent naphtha, and both ratios are 75:25.
Wherein, high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine, is characterized in that:
According to parts by weight meter, its formula is
Blocked isocyanate (MDI):
As a second aspect of the present invention, the preparation method of high heat-resisting atresia enamelled wire insulated paint for a kind of high speed enamelling machine, is characterized in that: according to parts by weight meter, comprise the following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put into reactor 1;
(2) heat up: control 10～15 DEG C per hour of heat-up rate, control column top temperature below 70 DEG C, it is 195 DEG C that temperature of reaction kettle is raise;
(3) receive cut: collect the cut after distillation;
(4) sampling and testing viscosity and acidity;
(5) dissolve: the meta-cresol and the aromatic solvent naphtha that add half component; Be cooled to 90～100 DEG C
Resynthesis blocked isocyanate;
(6) MDI-100 is dropped into reactor 2, be warming up to 80 DEG C;
(7) divide 9 times and on average add phenol, naturally heat up, control still temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours;
(9) be cooled to 80 DEG C, add meta-cresol;
Mix composite
(10) filter: by the blocked isocyanate of step (9) gained, put into reactor 1 and mix with polyester-imide, stir 1.5 hours;
(11), when 80～90 DEG C of still temperature, add resol;
(12), when 70～80 DEG C of still temperature, add acrylic resin;
(13) 50 DEG C of still temperature, filter, filling.
In step (4), described viscosity controller is at 2500～3500mpas25 DEG C, and testing method is resin: meta-cresol=1:1.
In step (4), acidity is below 4mgKOH.
In step (6), the MDI of use is pure 4 ', 4-MDI, 4 ', 4-vulcabond ditane.
Beneficial effect of the present invention:
(1) enameled wire that the present invention makes, is adapted to high speed enamelling machine and produces, and paint film tack is good, the peeling off twisting K value and can reach more than 170 of enameled wire, and than the product of current routine, ((K value is 110) is high two more than grade.
(2) paint film flexibility is good, extends after 20%, 1d reels and does not ftracture.
(3) thermal level can arrive 200 grades, and conventional insulating lacquer layer is 180 grades.
(4) technique remaining is wide, is convenient to realize sane explained hereafter.
Embodiment
Below in conjunction with specific embodiment, the present invention is done to progressive explanation.Should be understood that following examples are only for the present invention is described but not for limiting scope of the present invention.
Simple process of the present invention is;
Feed intake → heat up → receive acidity, the viscosity → dilution → filtration → filling of cut → first alcohol and water → checkout procedure.
Polyester imine resin matrix is imines and the intermediate molecular weight polyester imine resin of filling in gram modification, and when general solid content 39%, viscosity 900～1200mpas is intermediate molecular weight, and viscosity 700～900mpas is lower molecular weight.
Comparative example 1
With common polyesterimide wire enamel be priming paint (such as the 588/40G of Shanghai Ran insulating material company limited), finish paint be polyamidoimide paint (such as Shanghai Ran insulating material company limited 338/35) make two coating complex lines (bottom: surface layer two 80:20).
Comparative example 2
Get 100 parts of the polyesterimide wire enamels of intermediate molecular weight, when 85 DEG C of still temperature, add 12 parts of novolac resins to stir 90 minutes, when 70 DEG C of still temperature, add 1 part of highly methyl etherified melamine resin to stir 60 minutes, when 60 DEG C of still temperature, add 1 part of polymethyl siloxane to stir 45 minutes, while being cooled to 50 DEG C, blowing filters, making solid containing is 39%, and the polyester-imide paint that viscosity is 1000mpas is as priming paint, and finish paint adopts 338/35.
The formula of high heat-resisting atresia enamelled wire insulated paint for embodiment 1～3 high speed enamelling machine
A kind of high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine, according to parts by weight meter, its formula is:
formula is in table 1.
Table 1 is filled a prescription
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Polyester imine resin | 40 | 45 | 50 |
| Seal different hydrogen acid ether | 5 | 3 | 2 |
| Resol | 5 | 2 | 1 |
| Acrylate | 1 | 2 | 3 |
| Solvent | 49 | 48 | 44 |
The composition of polyester imine resin is:
Blocked isocyanate (MDI):
A preparation method for high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine, according to parts by weight meter, comprises the following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put into reactor 1;
(2) heat up: control 10～15 DEG C per hour of heat-up rate, control column top temperature below 70 DEG C, it is 195 DEG C that temperature of reaction kettle is raise;
(3) receive cut: collect the cut after distillation;
(4) sampling and testing viscosity and acidity;
(5) dissolve: the meta-cresol and the aromatic solvent naphtha that add half component; Be cooled to 90～100 DEG C
Resynthesis blocked isocyanate;
(6) MDI-100 is dropped into reactor 2, be warming up to 80 DEG C;
(7) divide 9 times and on average add phenol, naturally heat up, control still temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours;
(9) be cooled to 80 DEG C, add meta-cresol;
Mix composite
(10) filter: by the blocked isocyanate of step (9) gained, put into reactor 1 and mix with polyester-imide, stir 1.5 hours;
(11), when 80～90 DEG C of still temperature, add resol;
(12), when 70～80 DEG C of still temperature, add acrylic resin;
(13) 50 DEG C of still temperature, filter, filling.
The preparation of enameled wire line-transect:
Be coated with line equipment: the SVM1000 of Sigma;
Processing parameter:
Evaporating area 1:230 DEG C; Evaporating area 2:380 DEG C; Curing area temperature: 630 DEG C; Recirculation blower: 2500RPM; Waste discharge blower fan: 1000RPM; Cold wind blower fan: 400RPM.
The speed of a motor vehicle: 100m/min.
Japanning passage: 12+4.
Enameled wire specification is 1.05, and bottom is polyester-imide, and surface layer is polyamidoimide.Bottom: surface layer two 80:20; Wherein, bottom according to the form below formula is carried out.
Comparative example 1 and comparative example 2 are commercially available conventional products.
The detection of table 2 performance perameter
As seen from Table 2, the product high speed enamelling machine that this employing inventive method obtains is good with high heat-resisting atresia enamelled wire insulated paint tack, and peeling off twisting K value and can reaching more than 155 of enameled wire is better much than the product of current routine (K value is 110); Scratch resistance is good, and more than can reaching 2000g with the compound rear unidirectional scratch resistance of polyamidoimide, thermal level can arrive 200 grades; Not only paint film flexibility excellence, and thermal shocking, softening breakdown all show excellence.
Above the specific embodiment of the present invention is illustrated, but the present invention is as limit, only otherwise depart from aim of the present invention, the present invention can also have various variations.
Claims (9)
1. a high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine, is characterized in that, according to parts by weight meter, its formula is:
2. high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine according to claim 1, is characterized in that: according to parts by weight meter, the composition of described polyester imine resin is:
。
3. high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine according to claim 1, is characterized in that: described blocked isocyanate:
4. high heat-resisting atresia enamelled wire insulated paint for high speed enamelling machine according to claim 1, is characterized in that: described solvent is meta-cresol and aromatic solvent naphtha, and both ratios are 75:25.
5. according to high heat-resisting atresia enamelled wire insulated paint for the high speed enamelling machine described in claim 1-4 any one, it is characterized in that:
According to parts by weight meter, its formula is
Blocked isocyanate MDI:
6. a preparation method for high heat-resisting atresia enamelled wire insulated paint for the high speed enamelling machine as described in claim 1-5 any one, is characterized in that: according to parts by weight meter, comprise the following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put into reactor 1;
(2) heat up: control 10～15 DEG C per hour of heat-up rate, control column top temperature below 70 DEG C, it is 195 DEG C that temperature of reaction kettle is raise;
(3) receive cut: collect the cut after distillation;
(4) sampling and testing viscosity and acidity;
(5) dissolve: the meta-cresol and the aromatic solvent naphtha that add half component; Be cooled to 90～100 DEG C of resynthesis blocked isocyanates;
(6) MDI-100 is dropped into reactor 2, be warming up to 80 DEG C;
(7) divide 9 times and on average add phenol, naturally heat up, control still temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours;
(9) be cooled to 80 DEG C, add meta-cresol;
Mix composite
(10) filter: by the blocked isocyanate of step (9) gained, put into reactor 1 and mix with polyester-imide, stir 1.5 hours;
(11), when 80～90 DEG C of still temperature, add resol;
(12), when 70～80 DEG C of still temperature, add acrylic resin;
(13) 50 DEG C of still temperature, filter, filling.
7. preparation method according to claim 6, is characterized in that: in step (4), described viscosity controller is at 2500～3500mpas25 DEG C, and testing method is resin: meta-cresol=1:1.
8. preparation method according to claim 6, is characterized in that: in step (4), acidity is below 4mgKOH.
9. preparation method according to claim 6, is characterized in that: in step (6), the MDI of use is pure 4 ', 4-MDI, 4 ', 4-vulcabond ditane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410345510.2A CN104178022B (en) | 2014-07-18 | 2014-07-18 | Preparation method of heat-resistant imporous enameled wire insulating paint for high speed machines |
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| CN201410345510.2A CN104178022B (en) | 2014-07-18 | 2014-07-18 | Preparation method of heat-resistant imporous enameled wire insulating paint for high speed machines |
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| CN104178022B CN104178022B (en) | 2017-01-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN109181528A (en) * | 2018-09-20 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of high-temperature insulating paint and preparation method thereof |
| 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 |
| CN109991949A (en) * | 2019-04-21 | 2019-07-09 | 定远诚宇电工材料有限公司 | A kind of application that dcs is produced in enamelled wire insulated paint |
| CN110591536A (en) * | 2019-10-30 | 2019-12-20 | 安徽晟然绝缘材料有限公司 | High-softening breakdown polyurethane wire enamel and preparation method thereof |
| CN114230761A (en) * | 2021-11-26 | 2022-03-25 | 南通百川新材料有限公司 | Auxiliary agent for improving bonding strength of self-adhesive wire enamel and preparation method thereof |
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| JPH07166054A (en) * | 1993-12-14 | 1995-06-27 | Hitachi Chem Co Ltd | Resin composition and insulated wire made by using it |
| WO2007019434A1 (en) * | 2005-08-08 | 2007-02-15 | E. I. Du Pont De Nemours And Company | Wire-coating composition based on new polyester amide imides and polyester amides |
| CN1919947A (en) * | 2006-09-08 | 2007-02-28 | 上海晟然绝缘材料有限公司 | High heat-stage non-pinhole polyesterimide enamelled wire insulating paint modifier |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0445179A (en) * | 1990-06-12 | 1992-02-14 | Furukawa Electric Co Ltd:The | Insulating coating compound |
| JPH07166054A (en) * | 1993-12-14 | 1995-06-27 | Hitachi Chem Co Ltd | Resin composition and insulated wire made by using it |
| WO2007019434A1 (en) * | 2005-08-08 | 2007-02-15 | E. I. Du Pont De Nemours And Company | Wire-coating composition based on new polyester amide imides and polyester amides |
| CN1919947A (en) * | 2006-09-08 | 2007-02-28 | 上海晟然绝缘材料有限公司 | High heat-stage non-pinhole polyesterimide enamelled wire insulating paint modifier |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN104673085B (en) * | 2015-03-09 | 2017-07-28 | 溧阳市佳禾电子材料有限公司 | A kind of heat resistant type enamelled wire insulated paint and preparation method thereof |
| 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 |
| CN109181528A (en) * | 2018-09-20 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of high-temperature insulating paint and preparation method thereof |
| CN109181528B (en) * | 2018-09-20 | 2020-09-15 | 株洲时代新材料科技股份有限公司 | High-temperature-resistant insulating paint and preparation method thereof |
| CN109991949A (en) * | 2019-04-21 | 2019-07-09 | 定远诚宇电工材料有限公司 | A kind of application that dcs is produced in enamelled wire insulated paint |
| CN110591536A (en) * | 2019-10-30 | 2019-12-20 | 安徽晟然绝缘材料有限公司 | High-softening breakdown polyurethane wire enamel and preparation method thereof |
| CN114230761A (en) * | 2021-11-26 | 2022-03-25 | 南通百川新材料有限公司 | Auxiliary agent for improving bonding strength of self-adhesive wire enamel and preparation method thereof |
| CN114230761B (en) * | 2021-11-26 | 2023-06-02 | 南通百川新材料有限公司 | Auxiliary agent for improving bonding strength of self-adhesive wire enamel and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN104178022B (en) | 2017-01-25 |
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Effective date of registration: 20170714 Address after: 243000 No. 5 Huaxing Road, Anhui fine chemical industry base, Ma'anshan city and County town, Anhui, Wujiang Patentee after: Anhui Sheng Sheng insulation materials Co., Ltd. Address before: Du Bang Road 201601 Songjiang District Sijing Town, Shanghai City No. 89 Building 1 - 4 Patentee before: Shanghai Shengran Insulating Material Co.,Ltd. |