CN1428240A - Prepreg composite material and its production method - Google Patents
Prepreg composite material and its production method Download PDFInfo
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- CN1428240A CN1428240A CN 01138039 CN01138039A CN1428240A CN 1428240 A CN1428240 A CN 1428240A CN 01138039 CN01138039 CN 01138039 CN 01138039 A CN01138039 A CN 01138039A CN 1428240 A CN1428240 A CN 1428240A
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- epoxy resin
- composite material
- production method
- heat resistant
- resin
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The present invention discloses a preimpregnated composite material and its production method. It is made up by using polyester film, polyester fibre and non-waven fabric flexible composite material (i,e. DMD), and adopting the processes of impregnating said composite material with heat-resistant epoxy resin preimpregnating liquor, drying and naturally cooling. Said invention is long in storage period, low in solidification temp. and short in solidification time, and the invented solid product possesses excellent electric property, binding property and heat-resistance, can meet requirements for F-grade insulation, and the invented prdouct can be used as insulating material between the low-voltage coil layers of dry transformer and insulating grooves of B-grade and F-grade electric machine.
Description
(1) technical field: the present invention relates to a kind of insulating materials.
(2) background technology: existing low-voltage coil of dry type transformer interlayer turn-to-turn insulation material, the certain defectives of aspect ubiquity such as the electric property of solidfied material, adhesive property, heat resistance, and required solidification temperature height, hardening time are long.
(3) summary of the invention:
The object of the present invention is to provide a kind of solidfied material to have excellent electric property, adhesive property, heat resistance, and storage period is long, solidification temperature is low, hardening time is short pre-impregnation composite material and production method.
Technical solution of the present invention is:
A kind of pre-impregnation composite material, its feature: make by drying behind polyester film and polyester fibre nonwoven fabric composite flexible material (being DMD) the dipping heat resistant epoxide resin presoak.
The epoxy resin presoak comprises following composition by weight:
Epoxy resin E44 20～35% epoxy resin E12 13～28%
Phenolic aldehyde 6～16% epoxy resin F46 10～20%
Brominated epoxy resin EX-48 and/or EX-20 4～12%
Diphenyl ether 6～16% antimony oxides 3～10%.
A kind of production method of pre-impregnation composite material, its feature: comprise the steps:
1. with following composition by weight mixed preparing heat resistant epoxide resin pre-preg liquid:
Epoxy resin E44 20～35% epoxy resins E12 13～28%
Phenolic aldehyde 6～16% epoxy resin F46 10～20%
Brominated epoxy resin EX-48 and/or EX-20 4～12%
Diphenyl ether 6～16% antimony oxides 3～10%;
2. get commercially available polyester film and polyester fibre nonwoven fabric composite flexible material (being DMD), put into above-mentioned heat resistant epoxide resin pre-preg liquid and flood, oven dry then, cool off and promptly to get product naturally.
Bake out temperature is 110～135 ℃.Dipping infiltrates fully with the DMD material and gets final product, and can adopt the method that twice is passed through from the pond with above-mentioned maceration extract with DMD.Oven dry also can be adopted DMD is passed through from drying baker, becomes to get final product about half-dried.
Storage period of the present invention is long, solidification temperature is low, hardening time is short, and solidfied material has excellent electric property, adhesive property, heat resistance, can satisfy the requirement of F class B insulation.Product of the present invention can be used as low-voltage coil of dry type transformer interlayer turn-to-turn insulation material, also applicable to the slot insulation of B level and F level motor and phase insulation or as the slot wedge material of motor.
(4) specific embodiment:
Embodiment 1:
1. with following composition by weight mixed preparing heat resistant epoxide resin pre-preg liquid:
Epoxy resin E44 22% epoxy resin E12 25%
Phenolic aldehyde 10% epoxy resin F46 18%
Brominated epoxy resin EX-48 5%
Diphenyl ether 15% antimony oxide 5%;
2. get commercially available polyester film and polyester fibre nonwoven fabric composite flexible material (being DMD), put into above-mentioned heat resistant epoxide resin pre-preg liquid and flood, dipping infiltrates fully with the DMD material and gets final product, and adopts the DMD method that twice is passed through from the pond with above-mentioned maceration extract.Then DMD is passed through from the drying baker of 110～135 ℃ (can be 110 ℃, 120 ℃, 130 ℃, 135 ℃), become to get final product about half-dried, cooling promptly gets product naturally.Also carry out rolling then, cut, pack.
Embodiment 2: heat resistant epoxide resin pre-preg liquid weight proportion is:
Epoxy resin E44 27% epoxy resin E12 20%
Phenolic aldehyde 7% epoxy resin F46 15%
Brominated epoxy resin EX-48 6% brominated epoxy resin EX-46 6%
Diphenyl ether 12% antimony oxide 7%;
All the other are all with embodiment 1.
Embodiment 3: heat resistant epoxide resin pre-preg liquid weight proportion is:
Epoxy resin E44 33% epoxy resin E12 15%
Phenolic aldehyde 15% epoxy resin F46 11%
Brominated epoxy resin EX-48 5% brominated epoxy resin EX-46 5%
Diphenyl ether 7% antimony oxide 9%;
All the other are all with embodiment 1.
Embodiment 4: heat resistant epoxide resin pre-preg liquid weight proportion is:
Epoxy resin E44 30% epoxy resin E12 22%
Phenolic aldehyde 12% epoxy resin F46 12%
Brominated epoxy resin EX-46 8%
Diphenyl ether 13% antimony oxide 3%;
All the other are all with embodiment 1.
Claims (4)
1, a kind of pre-impregnation composite material is characterized in that: made by drying behind the polyester film and polyester fibre nonwoven fabric composite flexible material dipping heat resistant epoxide resin presoak.
2, pre-impregnation composite material according to claim 1 is characterized in that: the epoxy resin presoak comprises following composition by weight:
Epoxy resin E44 20～35% epoxy resin E12 13～28%
Phenolic aldehyde 6～16% epoxy resin F46 10～20%
Brominated epoxy resin EX-48 and/or EX-20 4～12%
Diphenyl ether 6～16% antimony oxides 3～10%.
3, a kind of production method of pre-impregnation composite material is characterized in that: comprise the steps:
1. with following composition by weight mixed preparing heat resistant epoxide resin pre-preg liquid:
Epoxy resin E44 20～35% epoxy resin E12 13～28%
Phenolic aldehyde 6～16% epoxy resin F46 10～20%
Brominated epoxy resin EX-48 and/or EX-20 4～12%
Diphenyl ether 6～16% antimony oxides 3～10%;
2. get commercially available polyester film and polyester fibre nonwoven fabric composite flexible material, put into above-mentioned heat resistant epoxide resin pre-preg liquid and flood, oven dry then, cool off and promptly to get product naturally.
4, the production method of pre-impregnation composite material according to claim 3 is characterized in that: bake out temperature is 110～135 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01138039XA CN1194860C (en) | 2001-12-23 | 2001-12-23 | Prepreg composite material and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01138039XA CN1194860C (en) | 2001-12-23 | 2001-12-23 | Prepreg composite material and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1428240A true CN1428240A (en) | 2003-07-09 |
| CN1194860C CN1194860C (en) | 2005-03-30 |
Family
ID=4674331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01138039XA Expired - Fee Related CN1194860C (en) | 2001-12-23 | 2001-12-23 | Prepreg composite material and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194860C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895176A (en) * | 2010-08-19 | 2010-11-24 | 中国航空工业第六一八研究所 | Adhesive filling and grinding processing method for stator-rotor iron core component of motor |
| CN104559045A (en) * | 2014-12-28 | 2015-04-29 | 衡阳恒缘电工材料有限公司 | Preparation method of novel presoaking composite material for dry type transformer |
| CN107215057A (en) * | 2017-07-12 | 2017-09-29 | 河南省亚安绝缘材料厂有限公司 | A kind of heat resistant epoxide resin prepreg cloth |
| CN107578914A (en) * | 2017-09-22 | 2018-01-12 | 南通龙翔电器设备有限公司 | End seal preparation method under a kind of low-voltage coil of dry type transformer |
-
2001
- 2001-12-23 CN CNB01138039XA patent/CN1194860C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895176A (en) * | 2010-08-19 | 2010-11-24 | 中国航空工业第六一八研究所 | Adhesive filling and grinding processing method for stator-rotor iron core component of motor |
| CN101895176B (en) * | 2010-08-19 | 2012-04-25 | 中国航空工业第六一八研究所 | Adhesive filling and grinding processing method for stator-rotor iron core component of motor |
| CN104559045A (en) * | 2014-12-28 | 2015-04-29 | 衡阳恒缘电工材料有限公司 | Preparation method of novel presoaking composite material for dry type transformer |
| CN107215057A (en) * | 2017-07-12 | 2017-09-29 | 河南省亚安绝缘材料厂有限公司 | A kind of heat resistant epoxide resin prepreg cloth |
| CN107578914A (en) * | 2017-09-22 | 2018-01-12 | 南通龙翔电器设备有限公司 | End seal preparation method under a kind of low-voltage coil of dry type transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1194860C (en) | 2005-03-30 |
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