CN101961936B - Halogen-free fire-retarding dry mica tape - Google Patents
Halogen-free fire-retarding dry mica tape Download PDFInfo
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- CN101961936B CN101961936B CN 201010241706 CN201010241706A CN101961936B CN 101961936 B CN101961936 B CN 101961936B CN 201010241706 CN201010241706 CN 201010241706 CN 201010241706 A CN201010241706 A CN 201010241706A CN 101961936 B CN101961936 B CN 101961936B
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Abstract
The invention discloses halogen-free fire-retarding dry mica tape, which mica paper, a polyester thin film layer, a first adhesive layer and a second adhesive layer, wherein the adhesive of the first adhesive layer and the second adhesive layer is prepared by mixing the following components in part by weight: 20 to 40 parts of hyperbranched polyester resin with a number-average molecular weight of 20,000 to 50,000, 60 to 90 parts of epoxy resin, 50 to 120 parts of organic solvent, 0.1 to 1 part of promoter and 10 to 30 parts of nitrogen-containing hyperbranched polyester resin, wherein the promoter is an organic carboxylic acid metal salt, a diacetone metal salt or a mixture of the organic carboxylic acid metal salt and the diacetone metal salt. The adhesive formed by combining the high-molecular weight hyperbranched polyester resin and the epoxy resin can greatly improve the adhesion strength of the adhesive, so that the mica content can be improved, the medium loss can be reduced and the breakdown voltage can be increased; and the nitrogen-containing hyperbranched polyester resin and the epoxy resin in the adhesive are highly compatible, so the fire retarding performance is high and the mica tape is fire-retarding. Therefore, the mica tape of the invention is suitable for insulation of coils of high-voltage motors.
Description
Technical field
The present invention relates to a kind of halogen-free fire-retarding dry mica tape for insulating motor coil.
Background technology
Flourish along with high-voltage motor, the electrical equipment and electrical coil is subject to people's attention day by day with mica tape and insulation technology.Concerning electrical equipment, the coil mica tape is a kind of indispensable material, and its quality plays a part crucial to the technical-economic index of electrical equipment and service life.The temperature classification that improves mica tape can make voltage raising, electric capacity increase, volume-diminished, the weight saving of electric equipment, and can be at high temperature, the high cost that move reliably and with long-term under harsh conditions and save electric equipment such as carry, the key factor that improves its temperature classification is that the mica of raising mica tape is quantitative, reduce glue content, exploitation adhesive strength higher adhesive is the important measures that reduce glue content, the characteristics such as require also simultaneously that the adhesive compatibility is good, excellent insulation performance, thermal diffusivity are good.High-power along with motor, the fire resistance of insulating materials is particularly important, traditional fire proofing comprise fire resistance is relatively poor, compatibility is relatively poor inorganic matter and flame retardant effect better, compatibility halogen epoxy resin preferably, but can emit a large amount of toxic gases during the halogen flame retardant material combustion, be forbidden by American-European countries.
In prior art, the adhesive of mica tape is the basis mainly with common epoxy resin modification or common linear polyester resin greatly, adhesive strength is not high enough, compatibility is relatively poor, the mica of mica tape of preparation is quantitatively lower, easy dry linting, breakdown voltage is less, dielectric loss is higher, causing the motor feels hot, amount be large, loss of properties on aging, fire resistance be poor, is difficult to be applied to the flame-resistant insulation of motor.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of halogen-free fire-retarding dry mica tape that is applicable to the HV Electric Machine Coil insulation.
For solving above technical problem, the present invention adopts following technical scheme:
A kind of low resin mica tape, it comprises mica paper layer, laminated polyester film, be attached on one side and first adhesive-layer between laminated polyester film of described mica paper layer, be attached on the second adhesive-layer of the another side of described mica paper layer, and the adhesive that described the first adhesive-layer, the second adhesive-layer adopt is mixed by the component of following weight proportion: 20～40 parts of number-average molecular weight 20000～50000 Hyperbranched Polyester Resins; 60～90 parts of epoxy resin; 50～120 parts of organic solvents; 10～30 parts of 0.1～1 part of promoter and nitrogen hyper branched polyphosphate esters, described promoter are metal salt of organic carboxylic acid, acetyl acetone salt or their mixture.
According to the present invention, low resin mica tape can adopt conventional preparation technology's preparation, preferably preparation in accordance with the following steps: at first, by blade coating, dip-coating or spraying method, described adhesive coated is formed described the first adhesive-layer on the one side of polyester film; Secondly, the face of the one side of mica paper and the polyester film that is formed with the first adhesive-layer is fitted, then apply one deck adhesive formation the second adhesive-layer at the another side of mica paper by blade coating, dip-coating or spraying method, obtain the thing of fitting; At last, the applying thing was toasted 5～10 minutes under 90 ℃～120 ℃, section namely gets described low resin mica tape.
Preferably, in described mica paper, mica content is 120～200g/m
2
according to the present invention, Hyperbranched Polyester Resin is known, but preferably according to the Hyperbranched Polyester Resin that is prepared as follows the method acquisition: make dicarboxylic acids and trihydroxylic alcohol under the existence of catalyst p-methyl benzenesulfonic acid, reacted 3～8 hours in the microwave reactor of 150 ℃～220 ℃ and get final product, described dicarboxylic acids is for being selected from terephthalic acid (TPA), the combination of one or more in SA and M-phthalic acid, described trihydroxylic alcohol is for being selected from trimethylolpropane, the combination of one or more in glycerine and trihydroxyethyl isocyanuric ester, the molar ratio of described dicarboxylic acids and trihydroxylic alcohol is 1: 1～1.1, the quality that adds of p-methyl benzenesulfonic acid is 0.5%～2.0% of described dicarboxylic acids and trihydroxylic alcohol gross mass.In a specific embodiment, the power of microwave reactor can be 900～1200 watts.
According to the present invention, epoxy resin includes but not limited to conventional various epoxy resin.Preferably, epoxy resin is that epoxide equivalent is less than bisphenol A type epoxy resin or the bisphenol f type epoxy resin of 200g/mol.
According to the present invention, the organic solvent in adhesive can be one or more the mixed solvent in toluene, dimethylbenzene, butanone, butanols, acetone and ethyl acetate.
According to the present invention, nitrogen hyper branched polyphosphate ester is known, its preparation method be also known for example can be referring to Chinese invention patent application 200710199125.1 and 200910062870.0.Perhaps, nitrogen hyper branched polyphosphate ester also can direct commercial acquisition.Preferably, described nitrogen hyper branched polyphosphate ester is by nitrogenous polyol or contains the compound of a plurality of amino and the dissaving polymer of molecular weight between 1500～10000 that POCl3 obtains through dehydrochlorination reaction.
Owing to adopting technique scheme, the present invention compared with prior art has the following advantages:
The general adhesive strength of existing mica tape adhesive is not high, causes in mica tape quantitatively low, prepared coil insulation material dielectric loss and the breakdown potential of mica to be forced down, and is difficult to be applied to the insulation of high-voltage motor.The adhesive that the present invention utilizes HMW Hyperbranched Polyester Resin and epoxy resin to be compounded to form, quantitative thereby the adhesive strength that can greatly improve adhesive can improve mica, significantly reduce dielectric loss and improve breakdown voltage; In addition, contained nitrogen hyper branched polyphosphate ester in adhesive of the present invention, itself and epoxy resin compatibility are good, and fire resistance is excellent, gives mica tape with anti-flaming function.Therefore, mica tape of the present invention is suitable for the insulation of HV Electric Machine Coil.
The specific embodiment
The present invention will be described in detail below in conjunction with specific embodiment, but the present invention is not limited to these embodiment.
Below in each embodiment, be commercially available as epoxy resin, mica paper, polyester film, nitrogen hyper branched polyphosphate ester and the relevant chemical materials of raw material.
Embodiment 1
Low resin mica tape according to the present embodiment obtains as follows:
1, preparation adhesive
(1), synthesis of super branched polyester resin: 0.1mol terephthalic acid (TPA), 0.1mol trimethylolpropane and 1.5g p-methyl benzenesulfonic acid are put into there-necked flask, connect water knockout drum, thermometer and agitating device, the temperature of computer microwave reactor is controlled at 150 ℃, power setting is reaction 8 hours under the condition of 900 watts, gets final product to such an extent that number-average molecular weight is 21500 Hyperbranched Polyester Resin.
(2), preparation adhesive: get 20 parts of step (1) gained Hyperbranched Polyester Resins, 60 parts of bisphenol A type epoxy resins (commercial code is E51), 25 parts, acetone, 25 parts, butanols, 0.1 part of aluminium acetylacetonate, the nitrogen hyper branched polyphosphate ester (HPPE-1 of Suzhou HyperT Resin Science ﹠ Technology Co., Ltd., number-average molecular weight 1900) 10 parts mix, and can obtain adhesive.
2, make mica tape
At first be the gluing of polyester film single face by blade coating technique under normal temperature and pressure conditions; Then be 120g/m with mica content
2Mica paper one side with fit through the polyester film of gluing; Pass through again blade coating, dip-coating or spraying coating process last layer glue on mica paper; At last, baking is approximately 10 minutes under 90 ℃ of conditions, and section namely obtains halogen-free fire-retarding dry mica tape, and its technical indicator is as shown in table 1.
Embodiment 2
Low resin mica tape according to the present embodiment obtains as follows:
1, preparation adhesive
(1), synthesis of super branched polyester resin: 0.1mol M-phthalic acid, 0.1mol glycerine and 3.0g p-methyl benzenesulfonic acid are put into there-necked flask, connect water knockout drum, thermometer and agitating device, the temperature of computer microwave reactor is controlled at 170 ℃, power setting is reaction 6 hours under the condition of 900 watts, obtains number-average molecular weight and be 23000 Hyperbranched Polyester Resin.
(2), preparation adhesive: get 25 parts of step (1) gained Hyperbranched Polyester Resins, 70 parts of bisphenol A type epoxy resins (commercial code is E54), 10 parts, acetone, 20 parts, butanols, 50 parts of dimethylbenzene, 0.3 part of chromium acetylacetonate, the nitrogen hyper branched polyphosphate ester (HPPE-2 of Suzhou HyperT Resin Science ﹠ Technology Co., Ltd., number-average molecular weight is 8700) 10 parts mix, can obtain adhesive.
2, make mica tape
At first be the gluing of polyester film single face by dipping process under normal temperature and pressure conditions; Then be 150g/m with mica content
2Mica paper one side with fit through the polyester film of gluing; Pass through again blade coating, dip-coating or spraying coating process last layer glue on mica paper; At last, baking is approximately 8 minutes under 100 ℃ of conditions, and section namely obtains low resin mica tape, and its technical indicator is as shown in table 1.
Embodiment 3
Low resin mica tape according to the present embodiment obtains as follows:
1, preparation adhesive
(1), synthesis of super branched polyester resin: 0.05mol M-phthalic acid, 0.05mol SA, 0.08mol glycerine, 0.03mol trimethylolpropane and 5.0g p-methyl benzenesulfonic acid are put into there-necked flask, connect water knockout drum, thermometer and agitating device, the temperature of computer microwave reactor is controlled at 190 ℃, power setting is reaction 5 hours under the condition of 1000 watts, can obtain number-average molecular weight and be 35000 Hyperbranched Polyester Resin.
(2), preparation adhesive: get 30 parts of step (1) gained Hyperbranched Polyester Resins, 80 parts of bisphenol A type epoxy resins (commercial code is CYD128), 30 parts, acetone, 30 parts, butanols, 40 parts of toluene, 0.5 part of isooctyl acid chromium, the nitrogen hyper branched polyphosphate ester (HPPE-3 of Suzhou HyperT Resin Science ﹠ Technology Co., Ltd., number-average molecular weight is 35000) 10 parts mix, can obtain adhesive.
2, make mica tape
At first be the gluing of polyester film single face by spraying coating process under normal temperature condition; Then be 180g/m with mica content
2Mica paper one side with fit through the polyester film of gluing; Pass through again blade coating, dip-coating or spraying coating process last layer glue on mica paper; At last, baking is approximately 5 minutes under 120 ℃ of conditions, and section namely obtains low resin mica tape, and its technical indicator is as shown in table 1.
Embodiment 4
Low resin mica tape according to the present embodiment obtains as follows:
1, preparation adhesive
(1), synthesis of super branched polyester resin: 0.02mol M-phthalic acid, 0.08mol SA, 0.07mol trihydroxyethyl isocyanuric ester, 0.03mol trimethylolpropane and 4.0g p-methyl benzenesulfonic acid are put into there-necked flask, connect water knockout drum, thermometer and agitating device, the temperature of computer microwave reactor is controlled at 220 ℃, power setting is reaction 4 hours under the condition of 1000 watts, can obtain number-average molecular weight and be 50000 Hyperbranched Polyester Resin.
(2), preparation adhesive: get 35 parts of step (1) gained Hyperbranched Polyester Resins, 90 parts of phenol aldehyde type epoxy resins (commercial code is F44), 60 parts, acetone, 60 parts, ethyl acetate, 20 parts of 1.0 parts of cobalt iso-octoates, nitrogen hyper branched polyphosphate ester (HPPE-2 of Suzhou HyperT Resin Science ﹠ Technology Co., Ltd.) mix, and can obtain adhesive.
2, make mica tape
At first be the gluing of polyester film single face by dipping process under the room temperature condition of normal pressure; Then be 200g/m with mica content
2Mica paper one side with fit through the polyester film of gluing; Pass through again blade coating, dip-coating or spraying coating process last layer glue on mica paper; At last, baking is approximately 6 minutes under 110 ℃ of conditions, and section namely obtains halogen-free fire-retarding dry mica tape, and its technical indicator is as shown in table 1.
Embodiment 5
Low resin mica tape according to the present embodiment obtains as follows:
1, preparation adhesive
(1), synthesis of super branched polyester resin: 0.02mol M-phthalic acid, 0.08mol SA, 0.1mol trihydroxyethyl isocyanuric ester and 4.0g p-methyl benzenesulfonic acid are put into there-necked flask, connect water knockout drum, thermometer and agitating device, the temperature of computer microwave reactor is controlled at 220 ℃, power setting is reaction 3 hours under the condition of 1200 watts, can obtain number-average molecular weight and be 46000 Hyperbranched Polyester Resin.
(2), preparation adhesive: get 40 parts of step (1) gained Hyperbranched Polyester Resins, 70 parts of phenol aldehyde type epoxy resins (commercial code is F51), 40 parts of butanone, 30 parts of dimethylbenzene, 30 parts of 0.2 part of cobalt iso-octoate and 0.3 part of aluminium acetylacetonate, nitrogen hyper branched polyphosphate esters (HPPE-2 of Suzhou HyperT Resin Science ﹠ Technology Co., Ltd.) mix, and can obtain adhesive.
2, make mica tape
At first be the gluing of polyester film single face by dipping process under normal temperature and pressure conditions; Then be 170g/m with mica content
2Mica paper one side with fit through the polyester film of gluing; Pass through again blade coating, dip-coating or spraying coating process last layer glue on mica paper; At last, baking is approximately 7 minutes under 100 ℃ of conditions, and section namely obtains halogen-free fire-retarding dry mica tape, and its technical indicator is as shown in table 1.
The technical indicator of table 1 halogen-free fire-retarding dry mica tape
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Thickness, mm | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
| Mica is quantitative, g/m 2 | 118 | 147 | 176 | 196 | 165 |
| Film is quantitative, g/m 2 | 36 | 38 | 38 | 39 | 39 |
| Adhesive content, g/m 2 | 5 | 6 | 5 | 5 | 6 |
| Hot strength, N/cm | 67 | 66 | 68 | 68 | 67 |
| Dielectric strength, MV/m | 53 | 52 | 54 | 55 | 53 |
| Drying material weight, g/m 2 | 159 | 191 | 219 | 240 | 210 |
| Oxygen index (OI) (%) | 30 | 31 | 30 | 33 | 36 |
The mica tape prepared take embodiment 2 is applied to the insulation of motor as example.The motor lines rod that adopts is 6kV level line rod, with the prepared halogen-free fire-retarding dry mica tape of embodiment 2 according to five layers of half-stack package technique, monolateral insulation thickness is 1.3mm, baking is 4 hours under 120 degrees celsius, then puts into impregnating vessel, vacuumizes below 100Pa to keep 2 hours, then the T1149-2 insulated paint that adds Taihu Lake, Wujiang insulating materials Co., Ltd to provide, be forced into again 0.55MPa, kept 4 hours, take out the line rod from impregnating vessel.Then after 140 degrees centigrade 3 hours, 160 degrees centigrade 4 hours, 170 degrees centigrade curing in 3 hours, test its dielectric loss and breakdown voltage according to corresponding national standard, as shown in table 2.
Table 2 embodiment 2 mica tapes are applied to high-voltage motor insulated electric property
As seen from Table 2, the prepared halogen-free fire-retarding dry mica tape of the present invention is applied to the high-voltage motor field and shows excellent electrical insulation properties, the dielectric loss of its normality all less than the dielectric loss of 0.80%, 155 ℃ less than 3%, the dielectric loss of 180 ℃ is less than 5%, and breakdown voltage reaches 54.2kV.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. low resin mica tape, comprise mica paper layer, it is characterized in that: described mica tape also comprises laminated polyester film, be attached on one side and first adhesive-layer between laminated polyester film of described mica paper layer, be attached on the second adhesive-layer of the another side of described mica paper layer, and the adhesive that described the first adhesive-layer, the second adhesive-layer adopt is mixed by the component of following weight proportion: 20～40 parts of number-average molecular weight 20000～50000 Hyperbranched Polyester Resins, 60～90 parts of epoxy resin, 50～120 parts of organic solvents, 10～30 parts of 0.1～1 part of promoter and nitrogen hyper branched polyphosphate esters, described promoter is metal salt of organic carboxylic acid, acetyl acetone salt or their mixture, the preparation process of described Hyperbranched Polyester Resin is: make dicarboxylic acids and trihydroxylic alcohol under the existence of catalyst p-methyl benzenesulfonic acid, reacted 3～8 hours in the microwave reactor of 150 ℃～220 ℃ and get final product, described dicarboxylic acids is for being selected from terephthalic acid (TPA), the combination of one or more in SA and M-phthalic acid, described trihydroxylic alcohol is for being selected from trimethylolpropane, the combination of one or more in glycerine and trihydroxyethyl isocyanuric ester, the molar ratio of described dicarboxylic acids and trihydroxylic alcohol is 1: 1～1.1, the quality that adds of p-methyl benzenesulfonic acid is 0.5%～2.0% of described dicarboxylic acids and trihydroxylic alcohol gross mass, described nitrogen hyper branched polyphosphate ester is by nitrogenous polyol or contains the compound of a plurality of amino and the dissaving polymer of number-average molecular weight between 1500～10000 that POCl3 obtains through dehydrochlorination reaction.
2. low resin mica tape according to claim 1, it is characterized in that: described mica tape prepares as follows: at first, by blade coating, dip-coating or spraying method, described adhesive coated is formed described the first adhesive-layer on the one side of polyester film; Secondly, the face of the one side of mica paper and the polyester film that is formed with the first adhesive-layer is fitted, then apply one deck adhesive formation the second adhesive-layer at the another side of mica paper by blade coating, dip-coating or spraying method, obtain the thing of fitting; At last, the applying thing was toasted 5～10 minutes under 90 ℃～120 ℃, section namely gets described low resin mica tape.
3. low resin mica tape according to claim 1, it is characterized in that: in described mica paper, mica content is 120～200g/m
2
4. low resin mica tape according to claim 1, it is characterized in that: the power of described microwave reactor is 900～1200 watts.
5. low resin mica tape according to claim 1, it is characterized in that: described epoxy resin is that epoxide equivalent is less than bisphenol A type epoxy resin or the bisphenol f type epoxy resin of 200g/mol.
6. low resin mica tape according to claim 1 is characterized in that: described organic solvent is one or more the mixed solvent in toluene, dimethylbenzene, butanone, butanols, acetone and ethyl acetate.
7. in claim 1 to 6, the described low resin mica tape of any one is used for the purposes of the insulation system of HV Electric Machine Coil.
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| CN 201010241706 CN101961936B (en) | 2010-07-30 | 2010-07-30 | Halogen-free fire-retarding dry mica tape |
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| CN 201010241706 CN101961936B (en) | 2010-07-30 | 2010-07-30 | Halogen-free fire-retarding dry mica tape |
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Families Citing this family (6)
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|---|---|---|---|---|
| JP5624942B2 (en) * | 2011-05-27 | 2014-11-12 | 日立オートモティブシステムズ株式会社 | Rotating electric machine and manufacturing method thereof |
| CN102582176B (en) * | 2012-02-07 | 2013-08-28 | 苏州太湖电工新材料股份有限公司 | Mica tape for motor and preparation method of mica tape |
| CN107134328B (en) * | 2017-04-21 | 2019-01-25 | 南通中菱电力科技股份有限公司 | A kind of preparation method of few ageing-resistant mica tape of glue-type |
| CN109294503A (en) * | 2018-10-30 | 2019-02-01 | 永济优耐特绝缘材料有限责任公司 | A kind of low resin mica tape adhesive and its technique for applying |
| CN113106776B (en) * | 2021-03-09 | 2022-07-05 | 通城县云水云母科技有限公司 | Preparation method of low-halogen mica paper product |
| CN116515364A (en) * | 2023-04-26 | 2023-08-01 | 山东新美达科技材料有限公司 | Preparation method of epoxy-polyester back paint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102102A (en) * | 1987-10-27 | 1988-07-13 | 衡阳绝缘材料总厂 | A kind of process for manufacturing adhesive for powdered mica tape |
| CN201117320Y (en) * | 2007-09-24 | 2008-09-17 | 苏州巨峰绝缘材料有限公司 | Epoxy polyester film dry mica-paper tapes |
| CN101591439A (en) * | 2009-06-30 | 2009-12-02 | 中南民族大学 | Nitrogenous hyper branched polyphosphate ester and halogen-free fire-retardant epoxy resin thereof |
-
2010
- 2010-07-30 CN CN 201010241706 patent/CN101961936B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102102A (en) * | 1987-10-27 | 1988-07-13 | 衡阳绝缘材料总厂 | A kind of process for manufacturing adhesive for powdered mica tape |
| CN201117320Y (en) * | 2007-09-24 | 2008-09-17 | 苏州巨峰绝缘材料有限公司 | Epoxy polyester film dry mica-paper tapes |
| CN101591439A (en) * | 2009-06-30 | 2009-12-02 | 中南民族大学 | Nitrogenous hyper branched polyphosphate ester and halogen-free fire-retardant epoxy resin thereof |
Non-Patent Citations (6)
| Title |
|---|
| 张道洪等.超支化不饱和树脂的制备与应用研究进展.《化工进展》.2009,第28卷(第7期),第1188-1189页. |
| 王延飞等.端羟基超支化聚酯的制备及表征.《涂料工业》.2006,第36卷(第10期),第2-3页. |
| 环氧树脂/聚氨酯-SiO2纳米复合材料研究;魏明坤等;《科技资讯》;20071231(第15期);第150页 * |
| 端羟基超支化聚酯的制备及表征;王延飞等;《涂料工业》;20061031;第36卷(第10期);第2-3页 * |
| 超支化不饱和树脂的制备与应用研究进展;张道洪等;《化工进展》;20091231;第28卷(第7期);第1188-1189页 * |
| 魏明坤等.环氧树脂/聚氨酯-SiO2纳米复合材料研究.《科技资讯》.2007,(第15期),第150页. |
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