JPH05112631A - Varnish for impregnating motor coil of refrigerator - Google Patents
Varnish for impregnating motor coil of refrigeratorInfo
- Publication number
- JPH05112631A JPH05112631A JP27410091A JP27410091A JPH05112631A JP H05112631 A JPH05112631 A JP H05112631A JP 27410091 A JP27410091 A JP 27410091A JP 27410091 A JP27410091 A JP 27410091A JP H05112631 A JPH05112631 A JP H05112631A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- pts
- varnish
- components
- 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.)
- Pending
Links
- 239000002966 varnish Substances 0.000 title claims abstract description 19
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003822 epoxy resin Substances 0.000 claims abstract description 8
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 8
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- IGALFTFNPPBUDN-UHFFFAOYSA-N phenyl-[2,3,4,5-tetrakis(oxiran-2-ylmethyl)phenyl]methanediamine Chemical compound C=1C(CC2OC2)=C(CC2OC2)C(CC2OC2)=C(CC2OC2)C=1C(N)(N)C1=CC=CC=C1 IGALFTFNPPBUDN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229930185605 Bisphenol Natural products 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000011134 resol-type phenolic resin Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 13
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 7
- 239000005011 phenolic resin Substances 0.000 abstract description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- -1 imidazole compound Chemical class 0.000 abstract description 6
- 229920003987 resole Polymers 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 238000001035 drying Methods 0.000 description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229920003319 Araldite® Polymers 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- UIDDPPKZYZTEGS-UHFFFAOYSA-N 3-(2-ethyl-4-methylimidazol-1-yl)propanenitrile Chemical compound CCC1=NC(C)=CN1CCC#N UIDDPPKZYZTEGS-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 description 1
Landscapes
- Epoxy Resins (AREA)
- Organic Insulating Materials (AREA)
- Manufacture Of Motors, Generators (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷凍機モートルコイル含
浸用ワニスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a varnish for impregnating a refrigerator motor coil.
【０００２】[0002]
【従来の技術】冷凍機モートルコイル含浸用ワニスに
は、特にフロン２２などの冷媒に対する優れた耐冷媒性
が要求され、従来からこの点に優れたエポキシ樹脂とレ
ゾール型フェノール樹脂を有機溶剤に溶解したもの、さ
らに、この系統のワニスに硬化促進剤として、特定のイ
ミダゾール化合物を併用したワニス（特開昭６０−５１
７１６号及び同６０−５３５２５号公報）などが提案さ
れている。2. Description of the Related Art A varnish for impregnating a motor coil of a refrigerator is required to have excellent resistance to refrigerants such as Freon 22. So far, epoxy resin and resol-type phenol resin, which are excellent in this respect, are dissolved in an organic solvent. And a varnish obtained by using a specific imidazole compound as a curing accelerator in the varnish of this system (JP-A-60-51).
No. 716 and No. 60-53525) are proposed.
【０００３】[0003]
【発明が解決しようとする課題】近年、冷凍機モートル
は、年々、小型軽量化し、且つ、稼働時間が長くなった
り、稼働時の温度上昇が高くなるなど、使用条件が過酷
化する傾向にあり、従来のワニスでは、十分な信頼性が
得られなくなってきた。本発明は、高温での接着力及び
耐冷媒性に優れた冷凍機モートルコイル含浸用ワニスを
提供するものである。In recent years, refrigerator motors are becoming smaller and lighter year by year, and the operating conditions tend to become severer, such as longer operating time and higher temperature rise during operation. With conventional varnishes, it has become impossible to obtain sufficient reliability. The present invention provides a varnish for impregnating a refrigerator motor coil, which is excellent in adhesive strength at high temperature and refrigerant resistance.
【０００４】[0004]
【課題を解決するための手段】本発明者は、前記の課題
を解決するため鋭意検討した結果、ビスフェノール型エ
ポキシ樹脂とテトラグリシジルジアミノジフェニルメタ
ンを併用することによって、高温での接着力及び耐冷媒
性を向上させ、さらに必要に応じて硬化促進剤として特
定のイミダゾール化合物を併用すれば硬化時間が短縮さ
れることを見出した。本発明は、（Ａ）ビスフェノール
型エポキシ樹脂を２０〜８０重量部、（Ｂ）テトラグリ
シジルジアミノジフェニルメタンを８０〜２０重量部
（ただし、（Ａ）及び（Ｂ）成分の総量を１００重量部
とする）、（Ｃ）レゾール型フェノール樹脂を、（Ａ）
及び（Ｂ）成分の総量１００重量部に対して３０〜１２
０重量部及び必要に応じて（Ｄ）一般式Means for Solving the Problems As a result of intensive studies for solving the above-mentioned problems, the present inventor has found that by using a bisphenol type epoxy resin and tetraglycidyldiaminodiphenylmethane together, adhesive strength at high temperature and refrigerant resistance It has been found that the curing time can be shortened by further improving the above properties and, if necessary, using a specific imidazole compound in combination as a curing accelerator. In the present invention, 20 to 80 parts by weight of (A) bisphenol type epoxy resin and 80 to 20 parts by weight of (B) tetraglycidyldiaminodiphenylmethane (however, the total amount of components (A) and (B) is 100 parts by weight). ), (C) resol type phenol resin, (A)
And 30 to 12 per 100 parts by weight of the total amount of the component (B).
0 parts by weight and, if necessary, (D) general formula
【化２】 〔式中、Ｒ1は水素又は炭素数１〜３のアルキル基であ
り、Ｒ2は炭素数１〜１１のアルキル基又はフェニル基
である〕で示されるイミダゾール化合物を、（Ａ）、
（Ｂ）及び（Ｃ）成分の総量１００重量部に対して０．
１〜１０重量部として有機溶剤に溶解してなる冷凍機モ
ートルコイル含浸用ワニスに関する。[Chemical 2] [Wherein R 1 is hydrogen or an alkyl group having 1 to 3 carbon atoms, and R 2 is an alkyl group having 1 to 11 carbon atoms or a phenyl group], (A),
The total amount of the components (B) and (C) is 100 parts by weight based on 0.
The present invention relates to a refrigerator motor coil impregnating varnish dissolved in an organic solvent as 1 to 10 parts by weight.
【０００５】本発明に用いる（Ａ）成分のビスフェノー
ル型エポキシ樹脂としては、特に制限はなく、例えば、
エピコート８０７、エピコート８２８、エピコート１０
０１、エピコート１００４、エピコート１００７（いず
れも油化シェル社製）などのビスフェノール型エポキシ
樹脂などが単独で又は２種以上組み合わせて用いられ
る。There are no particular restrictions on the bisphenol type epoxy resin used as component (A) in the present invention.
Epicoat 807, Epicoat 828, Epicoat 10
01, Epicoat 1004, Epicoat 1007 (all manufactured by Yuka Shell Co., Ltd.) and the like are used alone or in combination of two or more.
【０００６】（Ｂ）成分であるテトラグリシジルジアミ
ノジフェニルメタンとしては、アラルダイトＭＹ７２
０、アラルダイトＭＹ７２１（いずれもチバガイギー社
製）などが単独で又は２種以上組み合わせて用いられ
る。上記（Ａ）成分及び（Ｂ）成分の使用量は、（Ａ）
成分２０〜８０重量部に対して（Ｂ）成分８０〜２０重
量部（ただし（Ａ）成分及び（Ｂ）成分の総量は１００
重量部とされる）とされ、（Ａ）成分が８０重量部を越
えると、接着力及び耐冷媒性が劣り、（Ｂ）成分が８０
重量部を越えても、接着力及び耐冷媒性の著しい向上は
みられない。As the component (B), tetraglycidyl diaminodiphenylmethane, there is Araldite MY72.
0, Araldite MY721 (all manufactured by Ciba Geigy) and the like are used alone or in combination of two or more kinds. The amounts of the above components (A) and (B) used are (A)
80 to 20 parts by weight of the component (B) relative to 20 to 80 parts by weight of the component (however, the total amount of the components (A) and (B) is 100).
When the amount of the component (A) exceeds 80 parts by weight, the adhesive strength and the refrigerant resistance are poor, and the amount of the component (B) is 80 parts by weight.
Even if it exceeds the weight part, the adhesive strength and the refrigerant resistance are not significantly improved.
【０００７】（Ｃ）成分であるレゾール型フェノール樹
脂は、フェニル基１個に対してメチロール基を１個以上
有するフェノール樹脂であり、例えば、フェノール、ｏ
−クレゾール、ｍ−クレゾール、各種キシレノール、ビ
スフェノールＡなどにホルムアルデヒドを過剰に添加し
てアルカリ触媒で反応させて得られ、単独で又は２種以
上組み合わせて用いられる。例えば、日立化成工業
（株）製、ＰＲ−４０１０、ＰＲ−４０２０、ＰＲ−５
２０、ＰＲ−３３０５等がある。これらのレゾール型フ
ェノール樹脂は、前記（Ａ）及び（Ｂ）成分の総量１０
０重量部に対して３０〜１２０重量部の範囲で用いられ
る。レゾール型フェノール樹脂が３０重量部未満でも、
また、１２０重量部を越えても、接着力及び耐冷媒性が
劣る。The component (C), a resole type phenolic resin, is a phenolic resin having one or more methylol groups for one phenyl group, such as phenol and o.
-Cresol, m-cresol, various xylenols, bisphenol A and the like are obtained by adding formaldehyde in excess and reacting with an alkali catalyst, and they are used alone or in combination of two or more. For example, Hitachi Chemical Co., Ltd. product, PR-4010, PR-4020, PR-5
20, PR-3305, etc. These resol type phenolic resins have a total amount of the above components (A) and (B) of 10
It is used in the range of 30 to 120 parts by weight with respect to 0 parts by weight. Even if less than 30 parts by weight of resol type phenolic resin,
Further, even if it exceeds 120 parts by weight, the adhesive strength and the refrigerant resistance are inferior.
【０００８】また、必要に応じて用いる（Ｄ）成分であ
る一般式The general formula of component (D) used as necessary
【化３】 〔式中、Ｒ1及びＲ2は前記のものを示す。〕で示される
イミダゾール化合物としては、例えば、商品名、キュア
ゾール２ＭＺ−ＣＮ、２Ｅ４ＭＺ−ＣＮ、２ＩＺ−Ｃ
Ｎ、２ＰＺ−ＣＮ（いずれも四国化成工業（株）製）な
どがある。このようなイミダゾール化合物は、（Ａ）、
（Ｂ）及び（Ｃ）成分の総量１００重量部に対して０．
１〜１０重量部の範囲で用いる。上記のイミダゾール化
合物の量が０．１重量部未満であると、添加した効果が
充分に発現せず、また、１０重量部を超えてもその効果
は変わらない。[Chemical 3] [In formula, R < 1 > and R < 2 > shows the above-mentioned thing. Examples of the imidazole compound represented by the following are trade names: Cureazole 2MZ-CN, 2E4MZ-CN, 2IZ-C
N, 2PZ-CN (both manufactured by Shikoku Chemicals Co., Ltd.) and the like. Such an imidazole compound is (A),
The total amount of the components (B) and (C) is 100 parts by weight based on 0.
It is used in the range of 1 to 10 parts by weight. If the amount of the above-mentioned imidazole compound is less than 0.1 part by weight, the effect of addition is not sufficiently exhibited, and even if it exceeds 10 parts by weight, the effect does not change.
【０００９】さらに、本発明において用いる有機溶剤と
しては、特に制限はなく、メタノール、プロパノール、
ブタノール等のアルコール類、トルエン、キシレン等の
芳香族炭化水素類、メチルセロソルブ、エチルセロソル
ブ等のセロソルブ類、メチルセロソルブのアセテート、
エチルセロソルブのアセテート等のセロソルブのアセテ
ート類などが単独で又は２種以上組み合わせて用いられ
る。有機溶剤は、ワニスの粘度の点から上記の（Ａ）及
び（Ｂ）成分の総量１００重量部に対して４０〜４００
重量部の範囲で用いることが好ましい。Further, the organic solvent used in the present invention is not particularly limited, and methanol, propanol,
Alcohols such as butanol, aromatic hydrocarbons such as toluene and xylene, cellosolves such as methyl cellosolve and ethyl cellosolve, acetate of methyl cellosolve,
A cellosolve acetate such as ethyl cellosolve acetate may be used alone or in combination of two or more kinds. The organic solvent is 40 to 400 with respect to the total amount of 100 parts by weight of the above-mentioned components (A) and (B) from the viewpoint of the viscosity of the varnish.
It is preferably used in the range of parts by weight.
【００１０】[0010]
【実施例】次に、実施例及び比較例により本発明を説明
する。下記例中の「部」は、特に断らない限り「重量
部」を意味する。 実施例１〜５ エピコート１００１（油化シェル株式会社製ビスフェノ
ールＡ型エポキシ樹脂の商品名）、アラルダイトＭＲ７
２０（チバガイギー社製、テトラグリシジルジアミノジ
フェニルメタンの商品名）、ＰＲ−４０２０（日立化成
工業株式会社製レゾール型フェノール樹脂の商品名、樹
脂分５０重量％）、２Ｅ４ＭＺ−ＣＮ（四国化成工業株
式会社製、１−シアノエチル−２−エチル−４−メチル
イミダゾールの商品名）、ｎ−ブタノール及びキシレン
を表１に示す割合で配合してワニスを作成し、塗膜の乾
燥性、接着力及び耐冷媒性を試験した。なお、接着力及
び耐冷媒性は、乾燥時間を変えた試験片を作成し、各々
について試験した。その結果を表１に示す。EXAMPLES Next, the present invention will be described with reference to Examples and Comparative Examples. "Parts" in the following examples means "parts by weight" unless otherwise specified. Examples 1 to 5 Epicoat 1001 (trade name of bisphenol A type epoxy resin manufactured by Yuka Shell Co., Ltd.), Araldite MR7
20 (trade name of tetraglycidyl diaminodiphenylmethane manufactured by Ciba Geigy), PR-4020 (trade name of resole type phenol resin manufactured by Hitachi Chemical Co., Ltd., resin content 50% by weight), 2E4MZ-CN (manufactured by Shikoku Chemical Co., Ltd.) , 1-cyanoethyl-2-ethyl-4-methylimidazole), n-butanol and xylene are mixed in the proportions shown in Table 1 to form a varnish, and the coating film is dry, adhesive and refrigerant resistant. Was tested. The adhesive strength and refrigerant resistance were tested for each of the test pieces prepared with different drying times. The results are shown in Table 1.
【００１１】比較例１〜２ エピコート１００１、ＰＲ−４０２０、２Ｅ４ＭＺ−Ｃ
Ｎ、ｎ−ブタノール及びキシレンを表１に示す割合で配
合してワニスを作成し、塗膜の乾燥性、接着力及び耐冷
媒性を試験した。接着力と耐冷媒性については実施例と
同様、乾燥時間を変えた試験片を作成して試験した。そ
の結果を表１に示す。Comparative Examples 1-2 Epicoat 1001, PR-4020, 2E4MZ-C
N, n-butanol and xylene were blended in the proportions shown in Table 1 to prepare a varnish, and the coating film was tested for dryness, adhesive strength and refrigerant resistance. Regarding the adhesive strength and the resistance to refrigerant, test pieces were prepared by changing the drying time and tested in the same manner as in the examples. The results are shown in Table 1.
【００１２】なお、塗膜の性能は下記の方法で測定し
た。 （１）塗膜の乾燥性 １００ｍｍ×５０ｍｍ×０．３ｔｍｍのステンレス板に
ワニスを塗布したあと、１２０℃の恒温槽に放置し、Ｊ
ＩＳ Ｃ２１０３に準じて、指触法で乾燥時間を測定し
た。 （２）接着力 直径１．０ｍｍの１種仕上げアミドイミド銅線（以下、
ＡＩＷと略す）を用いてＪＩＳ Ｃ２１０３に準じて、
ヘリカルコイルを作成し、各々ワニスで２回処理（１回
目は１３５℃で１時間乾燥、２回目は１３５℃で第１表
に示す２〜１０時間のいずれかの時間で乾燥）し、２回
目の処理条件の異なる４種の試験片を作成した。この試
験片の接着力を図１に示すように、ワニス処理した直径
５ｍｍのヘリカルコイル１を５０ｍｍの間隔で支点を有
する支持台２に載せて矢印の方向で荷重をかけて、島津
製作所製オートグラフＩＭ−１００型を用いて１２０℃
での曲げ接着力を測定した。 （３）耐冷媒性 １００ｍｍ×５０ｍｍ×０．３ｔｍｍのステンレス板に
各々のワニスを２回処理（１回目は１３５℃で１時間乾
燥、２回目は１３５℃で第１表に示す２〜１２時間のい
ずれかの時間で乾燥）し、２回目の処理条件の異なる５
種の試験片を作成した。内容積１ｌのステンレス製耐圧
容器（以下、オートクレーブと略す。）内にこの試験片
と冷凍機油（昭和シェル石油製ＲＭ−２２Ｓ）３００ｇ
を入れ、オートクレーブを密封したあと、減圧（１００
℃、１ｍｍＨｇ、１時間）にして冷凍機油に含まれる水
分を除去した。その後、オートクレーブを冷却し、オー
トクレーブ内にＲ−２２（アサヒフロン社製フルオロカ
ーボン）３００ｇを注入して密封した。密封したオート
クレーブを１１０℃で、１２０時間放置後、室温まで冷
却したあと開封し、試験片を取り出して付着した冷凍機
油をガソリンで５回洗浄した。この洗浄した試験片を１
３０℃で３０分加熱してガソリンを除去したあと、重量
を測定し、抽出率（重量％）を求めた。The performance of the coating film was measured by the following method. (1) Drying property of coating film After applying a varnish to a stainless steel plate of 100 mm × 50 mm × 0.3 tmm, it is left in a thermostat at 120 ° C.
The drying time was measured by the finger touch method according to IS C2103. (2) Adhesive strength Type 1 finished amide imide copper wire with a diameter of 1.0 mm (hereinafter,
Abbreviated as AIW) according to JIS C2103,
Create a helical coil and treat each with varnish twice (first drying at 135 ° C for 1 hour, second drying at 135 ° C for any time from 2 to 10 hours shown in Table 1), then second 4 kinds of test pieces having different treatment conditions were prepared. As shown in FIG. 1, the adhesive strength of this test piece is obtained by placing a varnished helical coil 1 having a diameter of 5 mm on a support base 2 having fulcrums at intervals of 50 mm and applying a load in the direction of the arrow to make the Shimadzu auto. Graph IM-100 type using 120 ℃
The bending adhesive strength was measured. (3) Refrigerant resistance Each varnish was treated twice on a stainless steel plate of 100 mm x 50 mm x 0.3 tmm (first drying at 135 ° C for 1 hour, second time at 135 ° C for 2 to 12 hours shown in Table 1). 5) with different treatment conditions for the second time
Seed specimens were prepared. 300 g of this test piece and refrigerating machine oil (RM-22S made by Showa Shell Sekiyu KK) were placed in a stainless steel pressure-resistant container (hereinafter abbreviated as autoclave) having an internal volume of 1 liter.
, And after sealing the autoclave, decompression (100
C., 1 mmHg, 1 hour) to remove water contained in the refrigerating machine oil. Then, the autoclave was cooled, and R-22 (fluorocarbon manufactured by Asahi Flon Co., Ltd.) (300 g) was injected into the autoclave and sealed. The sealed autoclave was left at 110 ° C. for 120 hours, cooled to room temperature and then opened, the test piece was taken out, and the attached refrigerating machine oil was washed 5 times with gasoline. 1 for this washed test piece
After heating at 30 ° C. for 30 minutes to remove the gasoline, the weight was measured and the extraction rate (% by weight) was obtained.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【発明の効果】本発明の冷凍機モートルコイル含浸用ワ
ニスは、従来のワニスに比較して、高温での接着力及び
耐冷媒性に優れており、冷凍機モートルの小型軽量化、
信頼性向上などに寄与できる。INDUSTRIAL APPLICABILITY The varnish for impregnating the refrigerator motor coil of the present invention is superior in adhesive strength at high temperature and the resistance to refrigerant as compared with the conventional varnish, and the refrigerator motor is small and lightweight.
It can contribute to reliability improvement.
【図面の簡単な説明】[Brief description of drawings]
【図１】実施例及び比較例で行った接着力の測定方法を
示す説明図である。FIG. 1 is an explanatory diagram showing a method of measuring an adhesive force performed in Examples and Comparative Examples.
１ ヘリカルコイル ２ 支持台 1 Helical coil 2 Support
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０２Ｋ 15/12 Ｄ 8325−5Ｈ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H02K 15/12 D 8325-5H
Claims (1)
２０〜８０重量部、（Ｂ）テトラグリシジルジアミノジ
フェニルメタンを８０〜２０重量部（ただし、（Ａ）及
び（Ｂ）成分の総量を１００重量部とする）、（Ｃ）レ
ゾール型フェノール樹脂を、（Ａ）及び（Ｂ）成分の総
量１００重量部に対して３０〜１２０重量部及び必要に
応じて（Ｄ）一般式 【化１】 〔式中、Ｒ1は水素又は炭素数１〜３のアルキル基であ
り、Ｒ2は炭素数１〜１１のアルキル基又はフェニル基
である〕で示されるイミダゾール化合物を、（Ａ）、
（Ｂ）及び（Ｃ）成分の総量１００重量部に対して０．
１〜１０重量部として有機溶剤に溶解してなる冷凍機モ
ートルコイル含浸用ワニス。1. A bisphenol type epoxy resin (A) is 20 to 80 parts by weight, and tetraglycidyl diaminodiphenylmethane (B) is 80 to 20 parts by weight (however, the total amount of the components (A) and (B) is 100 parts by weight). And (C) the resol-type phenolic resin in an amount of 30 to 120 parts by weight, and (D) the general formula: if necessary, per 100 parts by weight of the total amount of the components (A) and (B). [Wherein R 1 is hydrogen or an alkyl group having 1 to 3 carbon atoms, and R 2 is an alkyl group having 1 to 11 carbon atoms or a phenyl group], (A),
The total amount of the components (B) and (C) is 100 parts by weight based on 0.
A varnish for impregnating a refrigerator motor coil, which is dissolved in an organic solvent as 1 to 10 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27410091A JPH05112631A (en) | 1991-10-22 | 1991-10-22 | Varnish for impregnating motor coil of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27410091A JPH05112631A (en) | 1991-10-22 | 1991-10-22 | Varnish for impregnating motor coil of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05112631A true JPH05112631A (en) | 1993-05-07 |
Family
ID=17537000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27410091A Pending JPH05112631A (en) | 1991-10-22 | 1991-10-22 | Varnish for impregnating motor coil of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05112631A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382352A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Filling type heat-conductive insulating impregnating varnish and preparation method thereof |
| CN103409043A (en) * | 2013-07-02 | 2013-11-27 | 安徽联硕实业有限公司 | Filling type heat conductive insulating impregnating varnish and preparation method thereof |
| JP2015140405A (en) * | 2014-01-29 | 2015-08-03 | 大日本印刷株式会社 | Adhesive composition and adhesive sheet using the same |
-
1991
- 1991-10-22 JP JP27410091A patent/JPH05112631A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382352A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Filling type heat-conductive insulating impregnating varnish and preparation method thereof |
| CN103409043A (en) * | 2013-07-02 | 2013-11-27 | 安徽联硕实业有限公司 | Filling type heat conductive insulating impregnating varnish and preparation method thereof |
| JP2015140405A (en) * | 2014-01-29 | 2015-08-03 | 大日本印刷株式会社 | Adhesive composition and adhesive sheet using the same |
| WO2015115212A1 (en) * | 2014-01-29 | 2015-08-06 | 大日本印刷株式会社 | Adhesive agent composition and adhesive sheet produced using same |
| CN105934492A (en) * | 2014-01-29 | 2016-09-07 | 大日本印刷株式会社 | Adhesive agent composition and adhesive sheet produced using same |
| US10538689B2 (en) | 2014-01-29 | 2020-01-21 | Dai Nippon Printing Co., Ltd. | Adhesive composition and adhesive sheet using the same |
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