JPS58225119A - Electrical insulating resin composition for impregnation - Google Patents
Electrical insulating resin composition for impregnationInfo
- Publication number
- JPS58225119A JPS58225119A JP10808982A JP10808982A JPS58225119A JP S58225119 A JPS58225119 A JP S58225119A JP 10808982 A JP10808982 A JP 10808982A JP 10808982 A JP10808982 A JP 10808982A JP S58225119 A JPS58225119 A JP S58225119A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- resin composition
- alcohol
- impregnation
- mono
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
ビスフェノールＡとエピクロルヒドリンから得られる分
子内忙少なくとも１個のエポキシ基を有するエポキシ樹
脂（目下エポキシ樹脂と略ず。）とレゾール型フェノー
ル１酎脂（以下フェノール樹脂と略す。）を、キシレン
と第１級又は第２級アルコールとの混合溶媒に溶解した
樹脂組成物（以下ワニスと略す。゛）は、耐冷媒性に優
れているため冷凍機用モータのコイル含浸用ワニスとし
て使用されているが、ワニス処理時にエナメル線皮膜に
微細なりラック（Ｌ−ＩＦクレージングと略す。）を発
生するため冷凍機用モータとして使用する場合、十分に
エナメル線アニールを行なうなどの必要がある。DETAILED DESCRIPTION OF THE INVENTION An epoxy resin having at least one epoxy group in the molecule obtained from bisphenol A and epichlorohydrin (hereinafter abbreviated as epoxy resin) and resol type phenol 1 fat (hereinafter abbreviated as phenol resin). ) dissolved in a mixed solvent of xylene and primary or secondary alcohol (hereinafter referred to as varnish) has excellent refrigerant resistance, so it is used as a varnish for impregnating the coils of refrigerator motors. However, when used as a motor for a refrigerator, it is necessary to thoroughly anneal the enameled wire because fine racks (abbreviated as L-IF crazing) occur in the enameled wire coating during varnish treatment. be.
通常このクレージングを防止するために、エナメル線を
ワニスに浸漬する前に、予備乾燥を行ないクレージング
の発生を防止している。Normally, in order to prevent this crazing, the enameled wire is pre-dried before being dipped in the varnish to prevent the occurrence of crazing.
しかし、予備乾燥を行なうとワニス処理時間が長くなり
またエネルギーコストもかかるため。However, pre-drying increases varnish processing time and increases energy costs.
予備乾燥を行なう必要のない含浸用ワニスが要望されて
いた。There was a need for an impregnating varnish that did not require pre-drying.
本発明者らは、エポキシ樹脂及びフェノール樹脂を含有
するワニスで予備乾燥を行なわなくてもクレージングを
発生しないワニスを開発するため種々検討した結果、ク
レージングが溶媒に用いられる第１級又は第２級アルコ
ールに起因することを見出し、第１級又は第２級アルコ
ールを第３級のモノアルコールに代えることにより従来
の作孕性、特性をそこなう事なく、予備乾燥しなくても
クレージングを発生しない含浸用電気絶縁樹脂組成物を
得るに至った。The present inventors conducted various studies to develop a varnish containing an epoxy resin and a phenolic resin that does not cause craze even without pre-drying. By replacing the primary or secondary alcohol with a tertiary monoalcohol, impregnation that does not impair the conventional fertility and characteristics and does not cause crazing even without pre-drying. An electrical insulating resin composition for use was obtained.
本発明は、ビスフェノールＡとエピクロルヒドリンから
得られる分子内に小なくとも１個のエポキシ基を有する
エポキシ樹脂１００重量部。The present invention uses 100 parts by weight of an epoxy resin obtained from bisphenol A and epichlorohydrin and having at least one epoxy group in the molecule.
レゾール型フェノール樹脂１０〜７０重量部および一般
式
％式％
（ただし＊ Ｒｔ Ｉ ”２ 、几、は炭化水素基であ
り炭化水素基に含まれる炭素数の合計は５以下とされる
）で示されるアルコールを含有してなる含浸用電気絶縁
樹脂組成物に関する。10 to 70 parts by weight of a resol type phenolic resin and the general formula % (however, * Rt I "2, 几, is a hydrocarbon group, and the total number of carbon atoms contained in the hydrocarbon group is 5 or less) The present invention relates to an electrically insulating resin composition for impregnation containing alcohol.
本発明においてエポキシ樹脂としては、ビスフェノール
Ａとエピクロルヒドリンから得られる分子内に少なくと
も１個のエポキシ基を有するエポキシ樹脂が用いられる
がこのエポキシ樹脂としては、たとえばエビコー）８２
８，１００１゜１００４（いずれもシェル化学社製、商
品名）等が用いられる。In the present invention, as the epoxy resin, an epoxy resin having at least one epoxy group in the molecule obtained from bisphenol A and epichlorohydrin is used.
8,1001°1004 (all manufactured by Shell Chemical Co., Ltd., trade names), etc. are used.
フェノール樹脂としてはレゾール型フェノール樹脂が用
いられるが、このレゾール型フェノール樹脂としては、
たとえばｐＨ，−４０２０゜ＰＲ−５２０，ＰＲ−３３
０５（日立化成株式会社製、商品名）等が用いられる。A resol type phenol resin is used as the phenol resin, but as this resol type phenol resin,
For example, pH, -4020°PR-520, PR-33
05 (manufactured by Hitachi Chemical Co., Ltd., trade name), etc. are used.
用いられるエポキシ樹脂およびレゾール型フェノール４
ｍ脂の種類には特に制限はない。Epoxy resin and resol type phenol used4
There are no particular restrictions on the type of m-fat.
Ｌ記の一般式で示されるアルコールとしＣはターンヤリ
ブチルアルコール 、９−７ヤリアミル゛ｒルコール、
１）Ｌ−３−ヘキシルアルコール等が用いられ、このア
ルコールは溶解性の点から樹脂組成物に対して１０重量
％以上とすることが好ましい。本発明になる組成物に、
業界で通常用いられるキシレン、トルエン埠の溶剤を併
用しても差しつかえなく、溶解性の点からはキシレンを
併用することが好ましい。Alcohol represented by the general formula L, where C is ternary butyl alcohol, 9-7 aryamyl alcohol,
1) L-3-hexyl alcohol or the like is used, and from the viewpoint of solubility, it is preferable that the amount of this alcohol is 10% by weight or more based on the resin composition. The composition of the present invention includes
There is no problem in using a combination of solvents such as xylene and toluene, which are commonly used in the industry, and from the viewpoint of solubility, it is preferable to use xylene in combination.
本発明においては上記のエポキシ樹脂１００重量部に対
してレゾール型フェノール樹脂は１０〜７０重量部の範
囲で用いられるが、１０重着未満では樹脂組成物の接着
力が劣り、７０重瞼部を越えると樹脂組成物の耐冷媒性
が劣るからである。In the present invention, the resol type phenol resin is used in a range of 10 to 70 parts by weight with respect to 100 parts by weight of the above-mentioned epoxy resin, but if it is less than 10 parts by weight, the adhesive strength of the resin composition will be poor, and if the 70 parts by weight is This is because if it exceeds this, the refrigerant resistance of the resin composition will be poor.
本発明になる含浸用電気絶縁樹脂組成物は。The electrically insulating resin composition for impregnation according to the present invention is as follows.
例えば冷凍機用モータのステークコイルの含浸に用いら
れる。For example, it is used to impregnate stake coils of refrigerator motors.
本発明の詳細な説明する。The present invention will be described in detail.
実施例１
エビ−１−） １００１．ＰＲ−４０２０、＊シＬ／７
゜ターシャリブチルアルコール、ターンヤリアミルアル
コール＆［ＪＬ−３−ヘキシルアルコールヲ表１の１〜
５に示す割合で配合した樹脂組成物の粘度、塗膜の乾燥
性、塗膜外観、耐冷媒性、ホルマール銅線のクレージン
グについて１周べた。Example 1 Shrimp-1-) 1001. PR-4020, *shi L/7
tert-butyl alcohol, tert-butyl alcohol & [JL-3-hexyl alcohol 1 to 1 in Table 1]
The viscosity, drying properties of the coating film, appearance of the coating film, refrigerant resistance, and crazing of formal copper wire were evaluated once for the resin composition blended in the ratio shown in No. 5.
組成物は、塗膜乾燥性、塗膜外観に優れ、また耐冷媒性
試験でもワニス皮膜の発泡が見られず耐冷媒性に優れて
いた。The composition had excellent coating drying properties and coating appearance, and no foaming of the varnish film was observed in the refrigerant resistance test, indicating excellent refrigerant resistance.
更に、ホルマール鋼線を３係、５チ伸長してもクレージ
ングの発生はなく、良好であった。Furthermore, even when the formal steel wire was stretched by 3 or 5 inches, no crazing occurred and the results were good.
比較例１
表１の６に示す割合で配合した組成物について実施例と
同様な特性試験を行なったところ塗膜乾燥性、塗膜外観
、耐冷媒性は良好であったが、ホルマール銅線のクレー
ジングが無数に発生した。Comparative Example 1 Characteristic tests similar to those in the Examples were conducted on a composition blended in the proportions shown in Table 1, 6, and the coating film drying properties, coating film appearance, and refrigerant resistance were good. Numerous crazes occurred.
以−１′余白 粘度は、ＢＬ型回転粘度計（東京計機製）で測定した。-1' margin The viscosity was measured using a BL type rotational viscometer (manufactured by Tokyo Keiki).
塗膜乾燥性、外観は樹脂組成物をステンレス板に塗布し
、１３０℃で６０分硬化した際の乾燥性は指触で、外観
は肉眼で観察した。The drying property and appearance of the coating film were determined by coating the resin composition on a stainless steel plate and curing it at 130° C. for 60 minutes.
耐冷媒性試験は、樹脂組成物をステンレス板（５０Ｘ１
００Ｘ０．２５ｆｆｌｌｌｔ）の片面に塗布しこｆｌを
を逆にして同じ面にもう一度樹脂組成物を塗布シフ。In the refrigerant resistance test, the resin composition was tested on a stainless steel plate (50X1
Apply the resin composition on one side of the 00
１５０℃で５時間で硬化させ硬化皮膜が均一になるよう
にしたものを試験片とした。この試験片を内容積】ｌの
ステンレス製耐圧容器（１リドオートクし・−プと略す
）に入れ、これに冷凍機油（昭利石油製、＋１５０ ）
３００グを加え、オートクレーブを密封し、冷凍機油中
に含まれる水分を真空脱水（１００”Ｃ、４ｍｍＨｇ、
２時間）シ、冷却後さらにフレオンガス几−２２（ア
サヒフロン製）３００ｆ／−を加え密封し、１１０℃で
２４０時間放 １１置後１６時間かけて室温
に冷却後開封し、６０秒以内に１３０℃の乾燥器に試験
片を投入し、１０分後取り出し皮膜の発泡状態を観察し
た。A test piece was prepared by curing at 150° C. for 5 hours to form a uniform cured film. This test piece was placed in a stainless steel pressure-resistant container (abbreviated as 1 Lido Cup) with an internal volume of 1 liter, and refrigerating machine oil (manufactured by Aki Sekiyu, +150) was added to the container.
Add 300g, seal the autoclave, and vacuum dehydrate the water contained in the refrigerating machine oil (100"C, 4mmHg,
2 hours) After cooling, add 300f/- of Freon Gas Box-22 (manufactured by Asahi Freon), seal, and leave at 110°C for 240 hours. The test piece was placed in a dryer at 0.degree. C. and taken out after 10 minutes to observe the foaming state of the film.
クレージングは、ホルマール銅線（直径１ｍの皮膜厚１
種のポリビニルホルマール線９日立化成工柴椰準試焼線
）を３係、５％伸長し、２５℃のワニス中に１０分浸漬
したあと取り出し、４０倍の光学顕微傭で観察した。The crazing is formal copper wire (diameter 1m, coating thickness 1
A seed polyvinyl formal wire (9 Hitachi Chemical Co., Ltd. Shibata Semi-Testing Wire) was stretched by 3 times and 5%, immersed in varnish at 25°C for 10 minutes, taken out, and observed under a 40x optical microscope.
本発明になる樹脂組成物を用いることによりワニス処理
時にエナメル線をあらかじめ予備乾燥しなくても、クレ
ージングを抑止できるためワニス処理時間の工程を短縮
することができる。By using the resin composition of the present invention, crazing can be suppressed without pre-drying the enameled wire during varnish treatment, so that the varnish treatment time can be shortened.
Claims (1)
れる分子内に少なくとも１個のエポキシ基を有するエボ
キン樹脂］００ｉｔＭ、Ｌ／ゾール型フェノール樹１盾
１０〜７０重量部および一般式 ％式％ （ただし、 ［１，＋ 、 Ｒ２、几３は炭化水素基で
あり炭化水素基に含まれる炭素数の合計は５Ｌ−１Ｔと
される）で示されるアルコールを含有してなる含浸用電
気絶縁樹脂組成物。[Claims] 1. Evokin resin having at least one epoxy group in the molecule obtained from bisphenol A and epichlorohydrin] 00itM, L/sol type phenol resin 10 to 70 parts by weight and general formula % formula % (However, [1, +, R2, 几3 are hydrocarbon groups, and the total number of carbon atoms contained in the hydrocarbon groups is 5L-1T) An electrical insulating resin for impregnation containing an alcohol represented by Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10808982A JPS58225119A (en) | 1982-06-23 | 1982-06-23 | Electrical insulating resin composition for impregnation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10808982A JPS58225119A (en) | 1982-06-23 | 1982-06-23 | Electrical insulating resin composition for impregnation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58225119A true JPS58225119A (en) | 1983-12-27 |
| JPS6216209B2 JPS6216209B2 (en) | 1987-04-11 |
Family
ID=14475588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10808982A Granted JPS58225119A (en) | 1982-06-23 | 1982-06-23 | Electrical insulating resin composition for impregnation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58225119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60228529A (en) * | 1984-03-31 | 1985-11-13 | ヘキスト・アクチエンゲゼルシヤフト | Mixture for manufacturing acid-resistant filler or impregnating agent, manufacture and use |
-
1982
- 1982-06-23 JP JP10808982A patent/JPS58225119A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60228529A (en) * | 1984-03-31 | 1985-11-13 | ヘキスト・アクチエンゲゼルシヤフト | Mixture for manufacturing acid-resistant filler or impregnating agent, manufacture and use |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6216209B2 (en) | 1987-04-11 |
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