CN102352174A - Preparation method for modified polyester wire enamel - Google Patents
Preparation method for modified polyester wire enamel Download PDFInfo
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- CN102352174A CN102352174A CN2011101567716A CN201110156771A CN102352174A CN 102352174 A CN102352174 A CN 102352174A CN 2011101567716 A CN2011101567716 A CN 2011101567716A CN 201110156771 A CN201110156771 A CN 201110156771A CN 102352174 A CN102352174 A CN 102352174A
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Abstract
The invention relates to a preparation method for modified polyester wire enamel, which is synthesized by modified polyester resin, modified resin, solvents and cross linking agents, wherein the solvents comprise one kind of materials or various kinds of materials from cresol (isomeride), dimethyl phenol (isomeride), phenol, solvent oil and dimethylbenzene, and the cross linking agents comprise one kind of materials or various kinds of materials from butyl acetate titanate, polymer titanate and titanate chelate. The cross linking distance of an enamel film is increased through the introduction of cyclohexanedimethanol, and the goal of thermal punching is reached.
Description
Technical field
The present invention relates to a kind of preparation method of modified poly ester wire enamel, particularly relate to a kind of preparation method who is suitable for producing the modified poly ester wire enamel of big wire gauge.
Background technology
Present domestic use history grows most and the maximum wire enamel of consumption is a polyester wire enamel; The temperature classification of polyester wire enamel has only 130 grades; The electrical machine insulation of developed regions such as America and Europe all requires to use the material more than 155 grades; This requirement is also being carried out by China; So; Be necessary polyester wire enamel is carried out modification, satisfy market demands.
From being coated with the line accessibility, polyester wire enamel coats the surperficial fine control of enameled wire, obtains ganoid enameled wire easily.The modified poly ester wire enamel is by the modification of polyester wire enamel process, so, equally also have the characteristics that are easy to control with its surface that coats enameled wire.The modification route of modified poly ester wire enamel mainly contains two kinds, and first kind is the modification of match gram, promptly is the wire enamel that replaces glycerine to produce with the match gram, and second kind is imine modified, and the separate room is the wire enamel with the Production of Terephthalic Acid of imidic acid instead of part.
Distinctive triazine ring (like Fig. 1) in the match mol structure; Has good heat endurance; The performance of coming out at the enameled wire upper surface is that the softening temperature that punctures is than higher; Its softening puncture of polyester wire enamel with the modification of match gram is more taller than polyesterimide wire enamel; So when making bottom with the polyester wire enamel of match gram modification; Polyamide-imide enamelled wire varnishes is made surface layer, and the composite enameled wire of production has high softening puncture and hot towards property, and is heat-stable comprehensive outstanding.Thereby the polyester wire enamel of these several years match grams modification has obtained develop rapidly.
The polyester wire enamel of match gram modification; Requirement reaches 200 grades temperature classification; The consumption of match gram will be very big; Sai Ke belongs to trivalent alcohol; Will certainly increase the cross-linking density of paint film like this, so its hot punching performance can be poor; Particularly when producing big wire gauge enameled wire, be easy to performance and occur, commercially available (Sai Ke) modified poly ester wire enamel just has this shortcoming at present.
Summary of the invention
The invention provides a kind of preparation method of modified poly ester wire enamel, the modified poly ester wire enamel that this method is prepared into can be fit to produce big wire gauge enameled wire, and anti-softening puncture is high, and temperature classification reaches 200 grades.
For solving the problems of the technologies described above, the preparation of modified poly ester wire enamel of the present invention gathers method and comprises: use modified polyester resin, modified resin, solvent, linking agent to synthesize; Said solvent comprises: one or more in cresols (isomers), xylenol (isomers), phenol, solvent oil, the xylenes; Said linking agent comprises: one or more in positive butyl (tetra) titanate, polymerization titanic acid ester, the titanate chelate.
Said modified polyester resin is the p-phenyl's vibrin by Sai Ke and dibasic alcohol modification.
Said modified resin comprises: one or more in resol, aminoresin, the AP resin.The used resol and the weight ratio of modified polyester resin are 0.5%～5% (pressing the calculating of solid weight part); The used aminoresin and the weight ratio of modified polyester resin are 0～2% (pressing the calculating of solid weight part), and the used AP resin and the weight ratio of modified polyester resin are 0.5%～5% (pressing the calculating of solid weight part).
In the said linking agent titaniferous ionic weight be said modified polyester resin and modified resin (pressing the calculating of solid weight part) gross weight 0.2%～0.8%.
The match gram that said modified polyester resin is used and the mol ratio of dibasic alcohol are 0.45～0.65.
The used dibasic alcohol of said modified polyester resin comprises: cyclohexane dimethyl carbinol and/or terepthaloyl moietie; The mol ratio that cyclohexane dimethyl carbinol accounts for dibasic alcohol is 20%～50%.
Said modified polyester resin may further comprise the steps in the preparation successively:
A, input polyvalent alcohol, diprotic acid, catalyzer, xylenol;
B, begin to heat up, start stirring;
C, be warmed up to 180 ℃～220 ℃ reactions, be lower than 4mgKOH/g until acid number, temperature is controlled at below 105 ℃ always;
After D, acid number are qualified, stop heating, add cresols, stirred 3 hours at 160-150 ℃;
E, add solvent then;
F, stirring cool to 80 ℃;
G, adding modified resin add linking agent;
H, down stir more than 2 hours at 80 ℃.
Said diprotic acid is terephthalic acid and/or dimethyl terephthalate (DMT).
Said catalyzer comprises: one or more in zinc acetate, isocaprylic acid zinc, positive butyl (tetra) titanate, the dibutyl tin laurate.
With respect to prior art, the technique effect that the present invention has: through introducing cyclohexane dimethyl carbinol (like Fig. 2), increase the crosslinked distance of paint film, improve the purpose that heat is dashed to reach.
Description of drawings
For content of the present invention is more clearly understood, below basis specific embodiment and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the structural formula of match gram;
Fig. 2 is the structural formula of cyclohexane dimethyl carbinol.
Embodiment
One, prescription
Table 1
Annotate: the AP resin is TDI trimerization sealing resin
Two, technology:
1) drops into terepthaloyl moietie, cyclohexane dimethyl carbinol, Sai Ke, xylenol.
2) begin to heat up, start stirring.
When 3) temperature reaches 80-100 ℃, drop into terephthalic acid and positive butyl (tetra) titanate.
4) be warmed up to 180 ℃～220 ℃ reactions, temperature is controlled at below 105 ℃ always.
5) react to acid number and be lower than 4mgKOH/g.
6) acid number qualified after, stop heating, add 1/3 cresols, stirred 3 hours at 160-150 ℃.
7) add remaining cresols and solvent oil then.
8) stir, cool to 80 ℃.
9) add resol and AP resin, add positive butyl (tetra) titanate cresol liquor again.
10) stir more than 2 hours down at 80 ℃.
2.1.4 test-results
Table 2
Annotate: " GB/T6109.20--2008200 level polyamidoimide complex polyester or polyester-imide enamelling cuprum round line " low-heat strategically important place is asked and is 3D/220 ℃.
Find that from table 2 the hot punching performance of modification wire enamel of the present invention obviously improves, satisfy and produce big wire gauge composite enameled wire that enameled wire has reached 200 grades requirement.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (10)
1. the preparation method of a modified poly ester wire enamel is characterized in that comprising: use modified polyester resin, modified resin, solvent, linking agent to synthesize; Said solvent comprises: one or more in cresols, xylenol, phenol, solvent oil, the xylenes; Said linking agent comprises: one or more in positive butyl (tetra) titanate, polymerization titanic acid ester, the titanate chelate.
2. the preparation method of modified poly ester wire enamel as claimed in claim 1 is characterized in that: said modified polyester resin is the p-phenyl's vibrin by Sai Ke and dibasic alcohol modification.
3. the preparation method of modified poly ester wire enamel as claimed in claim 1 is characterized in that: said modified resin comprises: one or more in resol, aminoresin, the AP resin.
4. the preparation method of modified poly ester wire enamel as claimed in claim 3; It is characterized in that: the used resol and the weight ratio of modified polyester resin are 0.5%～5%; The used aminoresin and the weight ratio of modified polyester resin are 0～2%, and the used AP resin and the weight ratio of modified polyester resin are 0.5%～5%.
5. the preparation method of modified poly ester wire enamel as claimed in claim 1 is characterized in that: in the said linking agent titaniferous ionic weight be said modified polyester resin and modified resin gross weight 0.2%～0.8%.
6. the preparation method of modified poly ester wire enamel as claimed in claim 2 is characterized in that: the match gram that said modified polyester resin is used and the mol ratio of dibasic alcohol are 0.45～0.65.
7. the preparation method of modified poly ester wire enamel as claimed in claim 2 is characterized in that: the used dibasic alcohol of said modified polyester resin comprises: cyclohexane dimethyl carbinol and/or terepthaloyl moietie; The mol ratio that cyclohexane dimethyl carbinol accounts for dibasic alcohol is 20%～50%.
8. the preparation method of modified poly ester wire enamel as claimed in claim 2 is characterized in that: said modified polyester resin may further comprise the steps in the preparation successively:
A, input polyvalent alcohol, diprotic acid, catalyzer, xylenol;
B, begin to heat up, start stirring;
C, be warmed up to 180 ℃～220 ℃ reactions, be lower than 4mgKOH/g until acid number, temperature is controlled at below 105 ℃ always;
After D, acid number are qualified, stop heating, add cresols, stirred 3 hours at 160-150 ℃;
E, add solvent then;
F, stirring cool to 80 ℃;
G, adding modified resin add linking agent;
H, down stir more than 2 hours at 80 ℃.
9. the preparation method of modified poly ester wire enamel as claimed in claim 8 is characterized in that: said diprotic acid is terephthalic acid and/or dimethyl terephthalate (DMT).
10. the preparation method of modified poly ester wire enamel as claimed in claim 8 is characterized in that: said catalyzer comprises: one or more in zinc acetate, isocaprylic acid zinc, positive butyl (tetra) titanate, the dibutyl tin laurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101567716A CN102352174A (en) | 2011-06-12 | 2011-06-12 | Preparation method for modified polyester wire enamel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101567716A CN102352174A (en) | 2011-06-12 | 2011-06-12 | Preparation method for modified polyester wire enamel |
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| CN102352174A true CN102352174A (en) | 2012-02-15 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725163A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | UPR (unsaturated polyester resin) wire enamel with high thermal level and preparation method of wire enamel |
| CN103725171A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Unsaturated polyester resin wire enamel and preparation method thereof |
| CN103725167A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Modified polyester wire enamel and preparation method thereof |
| CN103725170A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Unsaturated polyester wire enamel and preparation method thereof |
| CN103725168A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Acetal wire enamel and preparation method thereof |
| CN103980808A (en) * | 2014-05-30 | 2014-08-13 | 无锡百川化工股份有限公司 | Production method of enamel for Class 155 polyurethane enameled wire |
| CN105255331A (en) * | 2015-10-16 | 2016-01-20 | 国网山东莒南县供电公司 | Modified polyester wire enamel |
| CN106589749A (en) * | 2016-12-03 | 2017-04-26 | 安徽富丽华化工有限公司 | Modified unsaturated polyester resin having excellent acid and alkali resistance, and preparation method thereof |
| CN106947376A (en) * | 2017-03-10 | 2017-07-14 | 津正颜科技（天津）有限公司 | A kind of waterborne polyester enamel-covered wire insulated paint and its production technology |
| CN109082211A (en) * | 2018-08-02 | 2018-12-25 | 江苏恒兴制漆有限公司 | A kind of high modified polyester wire enamel of resistance to softening temperature and preparation method thereof |
| CN110289139A (en) * | 2019-06-25 | 2019-09-27 | 红旗集团江西铜业有限公司 | A kind of processing technology for copper enameled wire |
| CN111732877A (en) * | 2020-07-17 | 2020-10-02 | 迪马新材料科技（苏州）有限公司 | Modified polyester paint with good adhesive force and preparation method thereof |
| CN113789106A (en) * | 2021-08-19 | 2021-12-14 | 南通百川新材料有限公司 | Preparation method of low-toxicity environment-friendly polyester paint |
| CN113930140A (en) * | 2021-11-30 | 2022-01-14 | 迪马新材料科技（苏州）有限公司 | Polyester wire enamel and preparation method thereof |
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| CN1382753A (en) * | 2001-04-25 | 2002-12-04 | 殷承范 | Non-phenol polyester paint for enamel-insulated wire and its preparing process |
| CN1478114A (en) * | 2000-12-01 | 2004-02-25 | �Ϻ���ͨ��ѧ | Low melt viscosity amorphous copolyesters having resistance to lipids |
| CN1488697A (en) * | 2002-10-09 | 2004-04-14 | 上海汉邦化工有限公司 | Corona resistant enamel-covered wire paint for variable frequency motor and preparing process thereof |
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2011
- 2011-06-12 CN CN2011101567716A patent/CN102352174A/en active Pending
Patent Citations (3)
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| CN1478114A (en) * | 2000-12-01 | 2004-02-25 | �Ϻ���ͨ��ѧ | Low melt viscosity amorphous copolyesters having resistance to lipids |
| CN1382753A (en) * | 2001-04-25 | 2002-12-04 | 殷承范 | Non-phenol polyester paint for enamel-insulated wire and its preparing process |
| CN1488697A (en) * | 2002-10-09 | 2004-04-14 | 上海汉邦化工有限公司 | Corona resistant enamel-covered wire paint for variable frequency motor and preparing process thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725163A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | UPR (unsaturated polyester resin) wire enamel with high thermal level and preparation method of wire enamel |
| CN103725171A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Unsaturated polyester resin wire enamel and preparation method thereof |
| CN103725167A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Modified polyester wire enamel and preparation method thereof |
| CN103725170A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Unsaturated polyester wire enamel and preparation method thereof |
| CN103725168A (en) * | 2013-11-25 | 2014-04-16 | 铜陵天河特种电磁线有限公司 | Acetal wire enamel and preparation method thereof |
| CN103980808A (en) * | 2014-05-30 | 2014-08-13 | 无锡百川化工股份有限公司 | Production method of enamel for Class 155 polyurethane enameled wire |
| CN105255331A (en) * | 2015-10-16 | 2016-01-20 | 国网山东莒南县供电公司 | Modified polyester wire enamel |
| CN106589749A (en) * | 2016-12-03 | 2017-04-26 | 安徽富丽华化工有限公司 | Modified unsaturated polyester resin having excellent acid and alkali resistance, and preparation method thereof |
| CN106947376A (en) * | 2017-03-10 | 2017-07-14 | 津正颜科技（天津）有限公司 | A kind of waterborne polyester enamel-covered wire insulated paint and its production technology |
| CN109082211A (en) * | 2018-08-02 | 2018-12-25 | 江苏恒兴制漆有限公司 | A kind of high modified polyester wire enamel of resistance to softening temperature and preparation method thereof |
| CN110289139A (en) * | 2019-06-25 | 2019-09-27 | 红旗集团江西铜业有限公司 | A kind of processing technology for copper enameled wire |
| CN111732877A (en) * | 2020-07-17 | 2020-10-02 | 迪马新材料科技（苏州）有限公司 | Modified polyester paint with good adhesive force and preparation method thereof |
| CN113789106A (en) * | 2021-08-19 | 2021-12-14 | 南通百川新材料有限公司 | Preparation method of low-toxicity environment-friendly polyester paint |
| CN113930140A (en) * | 2021-11-30 | 2022-01-14 | 迪马新材料科技（苏州）有限公司 | Polyester wire enamel and preparation method thereof |
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Application publication date: 20120215 |