CN104178022B - 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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- CN104178022B CN104178022B CN201410345510.2A CN201410345510A CN104178022B CN 104178022 B CN104178022 B CN 104178022B CN 201410345510 A CN201410345510 A CN 201410345510A CN 104178022 B CN104178022 B CN 104178022B
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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 insulated paint is and in particular to a kind of high speed enamelling machine is with high heat-resisting atresia enamel-cover
The preparation method of line insulated paint.
Background technology
High speed enamel-covered wire due to single line but burner hearth, and the design of Lian Lalianbao, non-to the enamel-covered wire producing high-quality
Chang Youli.
High speed enamelling machine is due to its process characteristic, higher to the use requirement of insulated paint.Normal polyester imines enamel-covered wire is exhausted
Edge 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 reaches
200 about, conventional polyester imines enamelled wire insulated paint easily occur surface hemp skin, jerk disconnected contracting paint, paint film flexibility and
The not good phenomenon of tack.
Polyester-imide envelope curve insulated paint be on the basis of Polyester Paint introduce imine group or be simultaneously introduced match gram come right
It is modified it is therefore an objective to improve its heat resistance.Insulating lacquer layer is due to its outstanding heat resistance, in sealed electric-motor, electric
Power driven tools, and other high temperature classifications motor, electrically in obtained extensive utilization.
Although insulating lacquer layer all can meet most clients at aspects such as electrical property, hot property, chemical properties
Require, but it have following several shortcomings it may be assumed that
One, because the molecule segment of rigid structure in paint film molecular structure is relatively more, lead to the pliability of insulation paint film not
Good, it is embodied in resistance to extension or rubbing saline infusion needle pore performance is not good.Or paint film flexibility is not good.
Two, paint film is not good with the tack of conductor, specifies the stripping twisting k of insulating lacquer layer in iec 60851
It is worth for 110, the big enable of normal polyester imines enamel-covered wire reaches k value for 130 about, but k value is bright when producing for high speed machine
Aobvious low, 110 even lower, only easy appearance contracting paint dew copper phenomenons from tensile failure test or tension test can only be reached reluctantly
In be confirmed.
Content of the invention
It is an object of the invention to, a kind of high speed enamelling machine preparation side of high heat-resisting atresia enamelled wire insulated paint is provided
Method, to overcome disadvantages mentioned above and the deficiency existing for prior art.
Being intended at present of the present invention overcomes the shortcoming in existing insulating lacquer layer insulated paint performance, provides a kind of paint film
Tack is good, and pliability is good, is adapted to high speed machine and produces, and thermal level is more than 200 grades of high speed enamelling machine with high heat-resisting atresia paint
The preparation method of envelope curve insulated paint.
The technical problem solving required for the present invention, can be achieved through the following technical solutions:
As a first aspect of the present invention, a kind of high speed enamelling machine is existed with high heat-resisting atresia enamelled wire insulated paint, its feature
In in parts by weight, it is filled a prescription and is:
Wherein, in parts by weight, the composition of described polyester imine resin is:
Wherein, the composition of described blocked isocyanate mdi is:
Wherein, described solvent is metacresol and aromatic solvent naphtha, and both ratios are 75:25.
Wherein, high speed enamelling machine with high heat-resisting atresia enamelled wire insulated paint it is characterised in that:
In parts by weight, it is filled a prescription and is
Blocked isocyanate (mdi):
As a second aspect of the present invention, a kind of high speed enamelling machine preparation side of high heat-resisting atresia enamelled wire insulated paint
Method it is characterised in that: in parts by weight, comprise the following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put in reactor 1；
(2) heat up: control 10～15 DEG C per hour of programming rate, control below capital temperature 70 C, by temperature of reaction kettle
Rise a height of 195 DEG C；
(3) receive cut: collect the cut after distillation；
(4) sampling and testing viscosity and acidity；
(5) dissolve: add metacresol and the aromatic solvent naphtha of half component；It is cooled to 90～100 DEG C, then by remaining
Cresols is added with aromatic solvent naphtha；
Synthesize blocked isocyanate mdi again；
(6) mdi-100 is put into reactor 2, be warming up to 80 DEG C；
(7) divide 9 average addition phenol, naturally heat up, control kettle temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours；
(9) it is cooled to 80 DEG C, add cresols；
Mixing is compounding
(10) filter: the blocked isocyanate of step (9) gained is put in reactor 1 and mixed with polyester-imide, stirring
1.5 hour；
(11), during 80～90 DEG C of kettle temperature, add phenolic resin；
(12), during 70～80 DEG C of kettle temperature, add acrylate；
(13) 50 DEG C of kettle temperature, filter, filling.
In step (4), described viscosity controls in 25 DEG C of 2500～3500mpa s@, and method of testing is resin: metacresol
=1:1.
In step (4), acidity is below 4mgkoh.
In step (6), the mdi of use is pure 4 ', 4-mdi, i.e. 4 ', 4- diisocyanate diphenyl-methane.
Beneficial effects of the present invention:
(1) enamel-covered wire that the present invention makes, is adapted to high speed enamelling machine and produces, paint film tack is good, the stripping of enamel-covered wire
Twisting k value can reach more than 170, than current conventional product (more than (k value is 110) high two grades.
(2) paint film flexibility is good, does not ftracture after extending 20%, 1d winding.
(3) thermal level can reach 200 grades, and the insulating lacquer layer of routine is 180 grades.
(4) technique remaining width, facilitates implementation sane technique productions.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is made with progressive explanation.It should be understood that following examples are merely to illustrate this
Bright not for limit the scope of the present invention.
The 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 plug gram modified intermediate molecular weight polyester imine resin, general solid content
When 39%, viscosity 900～1200mpas is intermediate molecular weight, and viscosity 700～900mpas is lower molecular weight.
Comparative example 1
It is priming paint (the 588/ of such as Shanghai Ran insulating materials Co., Ltd with common polyesterimide wire enamel
40g), finish paint is made double coatings for polyamidoimide paint (the 338/35 of such as Shanghai Ran insulating materials Co., Ltd) and is combined
Line (bottom: surface layer two 80:20).
Comparative example 2
Take 100 parts of the polyesterimide wire enamel of intermediate molecular weight, during 85 DEG C of kettle temperature, add 12 parts of thermoplastic phenolic resins
Stirring 90 minutes, adds 1 part of highly methyl etherified melmac to stir 60 minutes during 70 DEG C of kettle temperature, add during 60 DEG C of kettle temperature
1 part of polymethyl siloxane stirs 45 minutes, and when being cooled to 50 DEG C, blowing filters, make solid contain for 39%, viscosity is 1000mpas
Polyester-imide paint as priming paint, finish paint then adopt 338/35.
Embodiment 1～3 high speed enamelling machine formula of high heat-resisting atresia enamelled wire insulated paint
With high heat-resisting atresia enamelled wire insulated paint, in parts by weight, it fills a prescription and is a kind of high speed enamelling machine:
Table 1 is filled a prescription
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Polyester imine resin | 40 | 45 | 50 |
| Close different hydrogen acid ether (hydrogen acid ester) | 5 | 3 | 2 |
| Phenolic resin | 5 | 2 | 1 |
| Acrylate | 1 | 2 | 3 |
| Solvent | 49 | 48 | 44 |
The composition of polyester imine resin is:
Blocked isocyanate (mdi):
A kind of high speed enamelling machine preparation method of high heat-resisting atresia enamelled wire insulated paint, in parts by weight, including
Following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put in reactor 1；
(2) heat up: control 10～15 DEG C per hour of programming rate, control below capital temperature 70 C, by temperature of reaction kettle
Rise a height of 195 DEG C；
(3) receive cut: collect the cut after distillation；
(4) sampling and testing viscosity and acidity；
(5) dissolve: add metacresol and the aromatic solvent naphtha of half component；It is cooled to 90～100 DEG C, then by remaining
Cresols is added with aromatic solvent naphtha；
Synthesize blocked isocyanate mdi again；
(6) mdi-100 is put into reactor 2, be warming up to 80 DEG C；
(7) divide 9 average addition phenol, naturally heat up, control kettle temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours；
(9) it is cooled to 80 DEG C, add cresols；
Mixing is compounding
(10) filter: the blocked isocyanate of step (9) gained is put in reactor 1 and mixed with polyester-imide, stirring
1.5 hour；
(11), during 80～90 DEG C of kettle temperature, add phenolic resin；
(12), during 70～80 DEG C of kettle temperature, add acrylate；
(13) 50 DEG C of kettle temperature, filter, filling.
The preparation of enamel-covered wire line-transect:
Apply line equipment: Sigma svm1000；
Technological parameter:
1:230 DEG C of evaporating area；2:380 DEG C of evaporating area；Curing area temperature: 630 DEG C；Circulating fan: 2500rpm；Waste discharge wind
Machine: 1000rpm；Cold wind blower fan: 400rpm.
Speed: 100m/min.
Japanning passage: 12+4.
Enamel-covered 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 execution.
Comparative example 1 and comparative example 2 are commercially available conventional products.
The detection of table 2 performance parameter
As seen from Table 2, this adopts the product high speed enamelling machine that inventive method obtains with high heat-resisting atresia magnet wire insulation
Paint tack is good, and the stripping twisting k value of enamel-covered wire can reach more than 155, than current conventional product (k value is 110) well very
Many；Scratch resistance is good, and after being combined with polyamidoimide, unidirectional scratch resistance can reach more than 2000g, and thermal level can reach 200
Level；Not only paint film flexibility is excellent, and thermal impact, soften breakdown all show excellent.
Above the specific embodiment of the present invention is illustrated, but the present invention is not limited thereto, without departing from
Spirit of the invention, the present invention can also have various change.
Claims (5)
1. with high heat-resisting atresia enamelled wire insulated paint it is characterised in that in parts by weight, it fills a prescription a kind of high speed enamelling machine
For:
Wherein, in parts by weight, the composition of described polyester imine resin is:
In parts by weight, the composition of described blocked isocyanate mdi is:
Described solvent is metacresol and aromatic solvent naphtha, and both weight are 75:25 than ratio.
2. a kind of high speed enamelling machine as claimed in claim 1 preparation method of high heat-resisting atresia enamelled wire insulated paint, it is special
Levy and be: in parts by weight, comprise the following steps:
First synthesizing polyester imide resin
(1) feed intake: prepare raw material according to formula, put in reactor 1；
(2) heat up: control 10～15 DEG C per hour of programming rate, control below capital temperature 70 C, temperature of reaction kettle is raised
For 195 DEG C；
(3) receive cut: collect the cut after distillation；
(4) sampling and testing viscosity and acidity；
(5) dissolve: add metacresol and the aromatic solvent naphtha of half deal；It is cooled to 90～100 DEG C, then by remaining metacresol
Add with aromatic solvent naphtha；
Synthesize blocked isocyanate mdi again
(6) mdi-100 is put into reactor 2, be warming up to 80 DEG C；
(7) divide 9 average addition phenol, naturally heat up, control kettle temperature 130-140 DEG C
(8) add triethylene diamine, and be warming up to 150 DEG C, stir 2 hours；
(9) it is cooled to 80 DEG C, add cresols；
Mixing is compounding
(10) filter: the blocked isocyanate of step (9) gained is put in reactor 1 and mixed with polyester-imide, stirs 1.5
Hour；
(11), during 80～90 DEG C of kettle temperature, add phenolic resin；
(12), during 70～80 DEG C of kettle temperature, add acrylate；
(13) 50 DEG C of kettle temperature, filter, filling.
3. preparation method according to claim 2 it is characterised in that: in step (4), described viscosity controls 2500～
25 DEG C of 3500mpa s@, method of testing is resin: metacresol=1:1.
4. preparation method according to claim 2 it is characterised in that: in step (4), acidity be below 4mgkoh.
5. preparation method according to claim 2 it is characterised in that: in step (6), the mdi of use is pure 4 ', 4-
mdi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410345510.2A CN104178022B (en) | 2014-07-18 | 2014-07-18 | Preparation method of heat-resistant imporous enameled wire insulating paint for high speed machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN104178022A CN104178022A (en) | 2014-12-03 |
| CN104178022B true CN104178022B (en) | 2017-01-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
Family Cites Families (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 |
| US20070031672A1 (en) * | 2005-08-08 | 2007-02-08 | Frank-Rainer Boehm | Wire-coating composition based on new polyester amide imides and polyester amides |
| CN1919947B (en) * | 2006-09-08 | 2010-11-03 | 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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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. |
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