CN101864145A - High heat conductive insulating impregnated resin used for air reactor and preparation method thereof - Google Patents

High heat conductive insulating impregnated resin used for air reactor and preparation method thereof Download PDF

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Publication number
CN101864145A
CN101864145A CN201010196052A CN201010196052A CN101864145A CN 101864145 A CN101864145 A CN 101864145A CN 201010196052 A CN201010196052 A CN 201010196052A CN 201010196052 A CN201010196052 A CN 201010196052A CN 101864145 A CN101864145 A CN 101864145A
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CN
China
Prior art keywords
impregnated resin
heat conductive
conductive insulating
air reactor
resin
Prior art date
Application number
CN201010196052A
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Chinese (zh)
Inventor
饶保林
赵跃
陈鑫臣
李子健
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桂林五环电器制造有限公司
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Application filed by 桂林五环电器制造有限公司 filed Critical 桂林五环电器制造有限公司
Priority to CN201010196052A priority Critical patent/CN101864145A/en
Publication of CN101864145A publication Critical patent/CN101864145A/en

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Abstract

The invention discloses a high heat conductive insulating impregnated resin used for an air reactor and a preparation method thereof. The impregnated resin comprises the following components in parts by weight: 100 parts of epoxy resin, 5-25 parts of flexibilizer, 75-100 parts of curing agent, 0.30-0.80 part of curing accelerator and 85-300 parts of inorganic powder, wherein the inorganic powder is selected form one or more than two of silica micropowder, aluminium oxide powder and sericite powder. The preparation method comprises the following steps: sequentially feeding the epoxy resin, the curing agent and the flexibilizer into a kettle and stirring; feeding the inorganic powder while heating to 50-60 DEG C, evenly stirring, and carrying out decompression and defoaming at the temperature of 60-75 DEG C until no air bubble is released; and while cooling to 40-50 DEG C, carrying out vacuum release, adding the curing accelerator, and evenly stirring to obtain the solvent impregnated resin. Compared with the prior art, the solvent impregnated resin preparation method of the invention is simple, the production cost is low, the obtained impregnated resin has high coefficient of heat conductivity, and the temperature rise of the reactor is low.

Description

High heat conductive insulating impregnated resin used for air reactor and preparation method thereof
Technical field
The present invention relates to a kind of solvent impregnated resin, be specifically related to a kind of high heat conductive insulating impregnated resin used for air reactor; The invention still further relates to the preparation method of this solvent impregnated resin.
Background technology
The air-core reactor that power system is used at present, its coil can adopt glass fibre with lead coiling dipping lacquer then, also can adopt on-the-spot wet method coiling together with glass fibre, lead, solvent impregnated resin, but no matter adopt any method coiling, all need to fill the air gap that coil inside exists by resin, curing molding is as a whole then.Glass fibre plays enhancement in reactor winding, resin plays in reactor winding fills air gap, heat transfer, protection against the tide, prevents effect such as shelf depreciation.
Present air-core reactor is made employed solvent impregnated resin and is mainly formed by component mixed preparing such as Resins, epoxy, solidifying agent, curing catalysts, and the thermal conductivity of its cured article is lower, has only 0.16~0.18W/ (mK), is unfavorable for the heat radiation of reactor winding.Because the thermal conductivity of solvent impregnated resin cured article is low excessively, the heat that coil inside produces during the reactor operation can not in time distribute, and causes coil temperature rise too high, and it is overheated gently then to cause reactor winding to take place, and has shortened the work-ing life of reactor; Heavy then accident such as directly cause that reactor winding burns has had a strong impact on the serviceability of electrical network.
Summary of the invention
The technical problem to be solved in the present invention is at the deficiencies in the prior art, provides a kind of thermal conductivity height, high heat conductive insulating impregnated resin used for air reactor that the reactor winding temperature rise is low and preparation method thereof.
For solving the problems of the technologies described above, high heat conductive insulating impregnated resin used for air reactor of the present invention, it comprises following component in weight part:
Resins, epoxy 100;
Toughner 5~25;
Solidifying agent 75~100;
Curing catalyst 0.30~0.80;
Inorganic powder 85~300;
Wherein said inorganic powder is any one or the two or more mixture that is selected from silicon powder, aluminium oxide powder and the sericite in powder.
In the technique scheme,
The weight proportion of each component is preferably:
Resins, epoxy 100;
Toughner 10~20;
Solidifying agent 80~90;
Curing catalyst 0.50~0.80;
Inorganic powder 100~250.
The particle diameter of described inorganic powder is preferably 300~800 orders.
Described Resins, epoxy is the resin that has two above epoxy group(ing) in the molecule.Specifically can be any one or the two or more mixtures that is selected from bisphenol A type epoxy resin, bisphenol f type epoxy resin, aliphatic epoxy resin and the cycloaliphatic epoxy resin.
Described toughner is the polyether glycol that has two above hydroxyls in the molecule.Specifically can be to be selected from aliphatic poly ethoxylated polyhydric alcohol, aromatic polyether polyvalent alcohol and the alicyclic polyether glycol any one.
Described solidifying agent is to be selected from a kind of in methyltetrahydro Tetra hydro Phthalic anhydride, methyl hexahydro phthalic anhydride and the methyl Nai Dike acid anhydrides.
Described curing catalyst is for being selected from N, N '-dimethyl benzylamine, 2,4, any one in 6-three (dimethylamino methyl) phenol (DMP-30) and the liquid imidazole.
The present invention also will provide the preparation method of above-mentioned high heat conductive insulating impregnated resin used for air reactor, it is to drop into Resins, epoxy, solidifying agent and toughner in the reactor successively, stir, drop into inorganic powder when being warming up to 50~60 ℃, stir, deaeration under 60~75 ℃, 0.1~0.4kPa condition is emitted until no bubble; Remove vacuum when being cooled to 40~50 ℃, add curing catalyst, after stirring promptly.
In the aforesaid method, the temperature during vacuum deaerator is preferably 70~75 ℃, and pressure is preferably 0.2~0.3KPa.
Compared with prior art, the preparation method of high heat conductive insulating impregnated resin used for air reactor of the present invention is simple, and production cost is low; The thermal conductivity height of gained solvent impregnated resin can reach 0.35~0.90W/ (mK), and the reactor temperature rise is low; Not only can be used for on-the-spot wet method coiling air-core reactor coil, also can be used for impregnated glass fiber, make fiberglass-based resin impregnation preimpregnation band, and then with lead coiling reactor winding.
Embodiment
The invention will be further described with embodiment below, but the present invention is not limited to these embodiment.
Embodiment 1
One, the prescription of solvent impregnated resin
Resins, epoxy: CYD128 Resins, epoxy 100kg;
Toughner: polyoxypropyleneglycol 9.5kg;
Solidifying agent: methyltetrahydro Tetra hydro Phthalic anhydride 80kg;
Curing catalyst: DMP-30 0.5kg;
Inorganic powder: 400 purpose active micro silicon powder 125kg.
Two, preparation method
In the stirring tank of 300L, add Resins, epoxy, solidifying agent and toughner successively, start stirring, heat up, when rising to 60 ℃, drops into temperature of charge inorganic powder, and the back deaeration under 65 ℃, 0.3kPa condition that stirs is emitted until no bubble; Be cooled to 40 ℃ afterwards, remove vacuum, add curing catalyst, stir, filter, discharging, promptly.
Get the above-mentioned solvent impregnated resin that makes behind 150 ℃ of curing 5h, the thermal conductivity of cured article is 0.42W/ (mK), and density is 1.70g/cm 3, shock strength is 23kJ/m 2, flexural strength 120MPa, heat-drawn wire is 108 ℃, breaking down field strength is 28kV/mm.
Embodiment 2
One, the prescription of solvent impregnated resin
Resins, epoxy: E-54 Resins, epoxy 100kg;
Toughner: polyoxypropyleneglycol 9.5kg;
Solidifying agent: methyltetrahydro Tetra hydro Phthalic anhydride 80kg;
Curing catalyst: DMP-30 0.5kg;
Inorganic powder: 325 purpose aluminium oxide powder 180kg.
Two, preparation method
In the stirring tank of 300L, add Resins, epoxy, solidifying agent and toughner successively, start stirring, heat up, when rising to 60 ℃, drops into temperature of charge inorganic powder, and the back deaeration under 70 ℃, 0.25kPa condition that stirs is emitted until no bubble; Be cooled to 50 ℃ afterwards, remove vacuum, add curing catalyst, stir, filter, discharging, promptly.
Get the above-mentioned solvent impregnated resin that makes behind 150 ℃ of curing 5h, the thermal conductivity of cured article is 0.70W/ (mK), and density is 2.21g/cm 3, shock strength is 18kJ/m 2, flexural strength is 150MPa, and heat-drawn wire is 115 ℃, and breaking down field strength is 30kV/mm.
Embodiment 3
One, the prescription of solvent impregnated resin
Resins, epoxy: CER-170 cycloaliphatic epoxy resin 100kg;
Toughner: polytetrahydrofuran diol 9.5kg;
Solidifying agent: methyl hexahydro phthalic anhydride 90kg;
Curing catalyst: N, N '-dimethyl benzylamine 0.5kg;
Inorganic powder: 325 purpose aluminium oxide powder 200kg.
Two, preparation method
In the stirring tank of 300L, add Resins, epoxy, solidifying agent and toughner successively, start stirring, heat up, when rising to 60 ℃, drops into temperature of charge inorganic powder, and the back deaeration under 60 ℃, 0.4kPa condition that stirs is emitted until no bubble; Be cooled to 46 ℃ afterwards, remove vacuum, add curing catalyst, stir, filter, discharging, promptly.
Get the above-mentioned solvent impregnated resin that makes behind 150 ℃ of curing 5h, the thermal conductivity of cured article is 0.70W/ (mK), and density is 2.45g/cm 3, shock strength is 21kJ/m 2, flexural strength is 140MPa, and heat-drawn wire is 112 ℃, and breaking down field strength is 30kV/mm.
Embodiment 4
One, the prescription of solvent impregnated resin
Resins, epoxy: CER-170 cycloaliphatic epoxy resin 50kg, E-54 Resins, epoxy 50kg;
Toughner: polytetrahydrofuran diol 20kg;
Solidifying agent: methyl Nai Dike acid anhydrides 75kg;
Curing catalyst: liquid imidazole 0.3kg;
Inorganic powder: 600 purpose active micro silicon powder 100kg, 600 purpose aluminium oxide powder 100kg and 600 purpose sericite in powder 50kg.
Two, preparation method
In the stirring tank of 300L, add Resins, epoxy, solidifying agent and toughner successively, start stirring, heat up, when rising to 55 ℃, drops into temperature of charge inorganic powder, and the back deaeration under 65 ℃, 0.25kPa condition that stirs is emitted until no bubble; Be cooled to 42 ℃ afterwards, remove vacuum, add curing catalyst, stir, filter, discharging, promptly.
Get the above-mentioned solvent impregnated resin that makes behind 150 ℃ of curing 5h, the thermal conductivity of cured article is 0.60W/ (mK), and density is 1.78g/cm 3, shock strength is 17kJ/m 2, flexural strength is 140MPa, and heat-drawn wire is 122 ℃, and breaking down field strength is 31kV/mm.
Embodiment 5
One, the prescription of solvent impregnated resin
Resins, epoxy: CER-170 cycloaliphatic epoxy resin 20kg, E-54 Resins, epoxy 30kg, CYD128 Resins, epoxy 50kg;
Toughner: polyoxypropyleneglycol 5kg;
Solidifying agent: methyl Nai Dike acid anhydrides 100kg;
Curing catalyst: N, N '-dimethyl benzylamine 0.3kg;
Inorganic powder: 800 purpose active micro silicon powder 80kg, 700 purpose sericite in powder 20kg.
Two, preparation method
In the stirring tank of 300L, add Resins, epoxy, solidifying agent and toughner successively, start stirring, heat up, when rising to 50 ℃, drops into temperature of charge inorganic powder, and the back deaeration under 75 ℃, 0.2kPa condition that stirs is emitted until no bubble; Be cooled to 45 ℃ afterwards, remove vacuum, add curing catalyst, stir, filter, discharging, promptly.
Get the above-mentioned solvent impregnated resin that makes behind 150 ℃ of curing 5h, the thermal conductivity of cured article is 0.40W/ (mK), and density is 1.51g/cm 3, shock strength is 26kJ/m 2, flexural strength is 138MPa, and heat-drawn wire is 112 ℃, and breaking down field strength is 33kV/mm.

Claims (10)

1. high heat conductive insulating impregnated resin used for air reactor is characterized in that it comprises following component in weight part:
Resins, epoxy 100;
Toughner 5~25;
Solidifying agent 75~100;
Curing catalyst 0.30~0.80;
Inorganic powder 85~300;
Wherein said inorganic powder is any one or the two or more mixture that is selected from silicon powder, aluminium oxide powder and the sericite in powder.
2. high heat conductive insulating impregnated resin used for air reactor according to claim 1 is characterized in that: the particle diameter of described inorganic powder is 300~800 orders.
3. high heat conductive insulating impregnated resin used for air reactor according to claim 1 and 2 is characterized in that: the weight proportion of each component is:
Resins, epoxy 100;
Toughner 10~20;
Solidifying agent 80~90;
Curing catalyst 0.50~0.80;
Inorganic powder 100~250.
4. high heat conductive insulating impregnated resin used for air reactor according to claim 1 and 2 is characterized in that: described Resins, epoxy is any one or the two or more mixtures that is selected from bisphenol A type epoxy resin, bisphenol f type epoxy resin, aliphatic epoxy resin and the cycloaliphatic epoxy resin.
5. high heat conductive insulating impregnated resin used for air reactor according to claim 1 and 2 is characterized in that: described toughner is the polyether glycol that has two above hydroxyls in the molecule.
6. high heat conductive insulating impregnated resin used for air reactor according to claim 5 is characterized in that: described toughner is to be selected from aliphatic poly ethoxylated polyhydric alcohol, aromatic polyether polyvalent alcohol and the alicyclic polyether glycol any one.
7. high heat conductive insulating impregnated resin used for air reactor according to claim 1 and 2 is characterized in that: described solidifying agent is to be selected from a kind of in methyltetrahydro Tetra hydro Phthalic anhydride, methyl hexahydro phthalic anhydride and the methyl Nai Dike acid anhydrides.
8. high heat conductive insulating impregnated resin used for air reactor according to claim 1 and 2 is characterized in that: curing catalyst is for being selected from N, N '-dimethyl benzylamine, 2,4, any one in 6-three (dimethylamino methyl) phenol and the liquid imidazole.
9. the preparation method of any one described high heat conductive insulating impregnated resin used for air reactor in the claim 1~8, it is characterized in that: successively Resins, epoxy, solidifying agent and toughner are dropped in the reactor, stir, drop into inorganic powder when being warming up to 50~60 ℃, stir, deaeration under 60~75 ℃, 0.1~0.4KPa condition is emitted until no bubble; Remove vacuum when being cooled to 40~50 ℃, add curing catalyst, after stirring promptly.
10. the preparation method of high heat conductive insulating impregnated resin used for air reactor according to claim 9, it is characterized in that: the temperature during vacuum deaerator is 70~75 ℃, pressure is 0.2~0.3KPa.
CN201010196052A 2010-06-08 2010-06-08 High heat conductive insulating impregnated resin used for air reactor and preparation method thereof CN101864145A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102516708A (en) * 2011-11-25 2012-06-27 中国电力科学研究院 Composite core for power grid transmission line wire and preparation method thereof
CN102982981A (en) * 2012-12-04 2013-03-20 江苏亚威变压器有限公司 Epoxy resin insulating transformer
CN103824655A (en) * 2014-02-24 2014-05-28 深圳市沃尔核材股份有限公司 Manufacturing method for ceramic fire-proof cable
CN105542395A (en) * 2015-12-24 2016-05-04 中国电力科学研究院 Toughened and reinforced epoxy resin composition
CN106243999A (en) * 2016-08-29 2016-12-21 四川行之智汇知识产权运营有限公司 By the preparation technology of overcoat inside distribution box
CN106336800A (en) * 2016-08-29 2017-01-18 四川行之智汇知识产权运营有限公司 Protective layer used for inner side of power distribution box
CN106349927A (en) * 2016-08-29 2017-01-25 四川行之智汇知识产权运营有限公司 Coating process of protective layer for electrical cabinet
CN106833476A (en) * 2017-04-01 2017-06-13 张艳雪 A kind of binding agent of high heat conductive insulating and its application on reactor
CN107603154A (en) * 2017-09-29 2018-01-19 安徽众博新材料有限公司 A kind of traction electric machine casting resin and preparation method thereof
CN110283542A (en) * 2019-07-02 2019-09-27 南通东泰电工器材有限公司 Electrical-coil manufacture fill insulant and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
《绝缘材料》 20090831 余传柏等 "超支化聚醚多元醇在干式电抗器浸渍树脂中的增韧研究(I)" 第6-10页 1-10 第42卷, 第4期 2 *
《绝缘材料》 20091231 张晓伟等 "粉体种类对高导热换位填充腻子性能的影响" 第64-66页 1-10 第42卷, 第6期 2 *
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102516708A (en) * 2011-11-25 2012-06-27 中国电力科学研究院 Composite core for power grid transmission line wire and preparation method thereof
CN102516708B (en) * 2011-11-25 2014-07-02 中国电力科学研究院 Composite core for power grid transmission line wire and preparation method thereof
CN102982981A (en) * 2012-12-04 2013-03-20 江苏亚威变压器有限公司 Epoxy resin insulating transformer
CN103824655A (en) * 2014-02-24 2014-05-28 深圳市沃尔核材股份有限公司 Manufacturing method for ceramic fire-proof cable
CN105542395A (en) * 2015-12-24 2016-05-04 中国电力科学研究院 Toughened and reinforced epoxy resin composition
CN106243999A (en) * 2016-08-29 2016-12-21 四川行之智汇知识产权运营有限公司 By the preparation technology of overcoat inside distribution box
CN106336800A (en) * 2016-08-29 2017-01-18 四川行之智汇知识产权运营有限公司 Protective layer used for inner side of power distribution box
CN106349927A (en) * 2016-08-29 2017-01-25 四川行之智汇知识产权运营有限公司 Coating process of protective layer for electrical cabinet
CN106833476A (en) * 2017-04-01 2017-06-13 张艳雪 A kind of binding agent of high heat conductive insulating and its application on reactor
CN107603154A (en) * 2017-09-29 2018-01-19 安徽众博新材料有限公司 A kind of traction electric machine casting resin and preparation method thereof
CN110283542A (en) * 2019-07-02 2019-09-27 南通东泰电工器材有限公司 Electrical-coil manufacture fill insulant and preparation method thereof

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Open date: 20101020