JPS63276832A - Heat resistant electrical insulating sheet - Google Patents
Heat resistant electrical insulating sheetInfo
- Publication number
- JPS63276832A JPS63276832A JP62111399A JP11139987A JPS63276832A JP S63276832 A JPS63276832 A JP S63276832A JP 62111399 A JP62111399 A JP 62111399A JP 11139987 A JP11139987 A JP 11139987A JP S63276832 A JPS63276832 A JP S63276832A
- Authority
- JP
- Japan
- Prior art keywords
- borosiloxane
- electrical insulating
- insulating sheet
- resin paint
- borosiloxane resin
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 40
- 239000003973 paint Substances 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000010292 electrical insulation Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 5
- 238000000576 coating method Methods 0.000 abstract description 15
- 239000011248 coating agent Substances 0.000 abstract description 14
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010936 titanium Substances 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 229920002050 silicone resin Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Insulating Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は３００℃以上の高温で使用可能な耐熱性電気絶
縁シートに関する。Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to a heat-resistant electrical insulating sheet that can be used at high temperatures of 300° C. or higher.
（従来の技術）
従来、電気絶縁シートの被覆材料には、電気絶縁性を有
する有機系ポリマーが一般に使用されており、耐熱性が
要求される用途には、有機系ポリマーのなかでも優れた
耐熱性を有し、かつ電気的特性や機械的特性も良好なポ
リイミド、ポリアミドイミド等のイミド系樹脂が使用さ
れている。(Prior technology) Conventionally, organic polymers with electrical insulation properties have been generally used as coating materials for electrical insulation sheets. Imide-based resins such as polyimide and polyamide-imide are used, which have high properties and good electrical and mechanical properties.
（発明が解決しようとする問題点）
しかしながら、このようなイミド系樹脂は耐熱性が良好
であるとはいえ、４００℃を越えると分解するなめ、常
用２５０℃程度の範囲にその用途が限られていた。(Problems to be Solved by the Invention) However, although such imide resins have good heat resistance, they decompose when the temperature exceeds 400°C, so their use is limited to the normal temperature range of about 250°C. was.
しかして近年の急速の技術の発達とともに、原子力発電
、地熱発電その他の用途に３００’Ｃを越える高温域で
使用可能な優れた耐熱性を有する電気絶縁シートが要求
されてきている。However, with the rapid development of technology in recent years, there has been a demand for electrical insulating sheets having excellent heat resistance that can be used in high temperature ranges exceeding 300'C for nuclear power generation, geothermal power generation, and other uses.
そこで本発明はこのような要求に応えようとするもので
、３００℃以上の高温域で使用可能で、電気絶縁性その
他の特性も良好な耐熱性電気絶縁シートを提供すること
を目的とする。The present invention is intended to meet such demands, and aims to provide a heat-resistant electrically insulating sheet that can be used in a high temperature range of 300°C or higher and has good electrical insulation and other properties.
［発明の構成コ
（問題点を解決するための手段）
本発明の耐熱性電気絶縁シートは、金属シートの片面も
しくは両面に、絶縁性の良好なボロシロキサン樹脂塗料
を塗布焼付し、この塗布焼付層上に接着性の良好なボロ
シロキサン樹脂塗料を塗布し乾燥させてなることを特徴
としている。[Structure of the Invention (Means for Solving the Problems)] The heat-resistant electrical insulating sheet of the present invention is produced by coating and baking a borosiloxane resin paint with good insulation properties on one or both sides of a metal sheet, and by baking this coating and baking. It is characterized by applying a borosiloxane resin paint with good adhesion onto the layer and drying it.
以下、本発明を図面を用いて説明する。Hereinafter, the present invention will be explained using the drawings.
図面は本発明の耐熱性電気絶縁シートの一実施例の構造
を示す横断面図である。The drawing is a cross-sectional view showing the structure of an embodiment of the heat-resistant electrical insulating sheet of the present invention.
同図において、アルミ、チタン等の金属シート１上に、
二層構造のボロシロキサン樹脂被膜２が形成されており
、この二層構造のボロシロキサン樹脂液［２は、絶縁性
の良好なボロシロキサン樹脂塗料の塗布焼付による内層
２ａと、接着性の良好なボロシロキサン樹脂塗料の塗布
乾燥による外層２ｂとから構成されている。In the figure, on a metal sheet 1 made of aluminum, titanium, etc.,
A two-layered borosiloxane resin coating 2 is formed, and the two-layered borosiloxane resin coating 2 is coated with an inner layer 2a formed by coating and baking a borosiloxane resin paint with good insulation properties, and an inner layer 2a formed by applying and baking a borosiloxane resin paint with good insulation properties. It consists of an outer layer 2b formed by applying and drying a borosiloxane resin paint.
絶縁性の良好なボロシロキサン樹脂塗料としては、ボロ
シロキサン樹脂を主成分とし、これにシリコーン樹脂と
、絶縁性無機充填剤たとえば酸化マグネシウム、酸化ア
ルミニウム、雲母等を適当量溶剤に溶解または分散させ
て絶縁性を向上させたものが、本発明においては好適に
使用される。A borosiloxane resin paint with good insulation properties is made by using a borosiloxane resin as the main component, with a silicone resin and an appropriate amount of an insulating inorganic filler such as magnesium oxide, aluminum oxide, mica, etc. dissolved or dispersed in a solvent. Those with improved insulation properties are preferably used in the present invention.
また接着性の良好なボロシロキサン樹脂塗料としては、
同じくボロシロキサン樹脂を主成分とし、これにシリコ
ーン樹脂を適当量配合し、溶剤に溶解させたものが好適
に使用される。In addition, as a borosiloxane resin paint with good adhesion,
Similarly, a material containing a borosiloxane resin as a main component, blended with an appropriate amount of a silicone resin, and dissolved in a solvent is preferably used.
なお溶剤としては、キシレン、クレゾール、Ｎ−メチル
−２−ピロリドン（ＮＭＰ）、ジメチルアセトアミド（
ＤＭＡｃ） 、フェノール類等、ボロシロキサン樹脂の
溶剤として一般に用いられているものが使用される。In addition, as a solvent, xylene, cresol, N-methyl-2-pyrrolidone (NMP), dimethylacetamide (
DMAc), phenols, etc., which are commonly used as solvents for borosiloxane resins, are used.
本発明に使用されるボロシロキサン樹脂は、−例として
下記の一般式で示される樹脂で、加熱焼成により側鎖の
有機基は脱離し最終的に無機化するなめ、優れた耐熱性
を有している。The borosiloxane resin used in the present invention is, for example, a resin represented by the general formula below, and has excellent heat resistance because the organic groups in the side chain are eliminated by heating and baking, and the resin eventually becomes inorganic. ing.
上記実施例の耐熱性電気絶縁シートは、金属シート１上
に、まず絶縁性の良好なボロシロキサン樹脂塗料を３０
０℃以上の温度で塗布焼付けて内層２ａを形成し、次い
でその上に外層２ｂを形成すべく接着性の良好なボロシ
ロキサン樹脂塗料を塗布し乾燥させることにより製造さ
れる。The heat-resistant electrically insulating sheet of the above example was prepared by first coating a metal sheet 1 with a 30% borosiloxane resin paint having good insulation properties.
It is manufactured by coating and baking at a temperature of 0° C. or higher to form an inner layer 2a, and then applying a borosiloxane resin paint with good adhesiveness thereon to form an outer layer 2b and drying it.
このようにして得られた耐熱性電気絶縁シートは、電気
絶縁性を付与したい被着物の表面に、接着性の良好なボ
ロシロキサン樹脂塗料面を内側にして貼り合された後、
最終的に３００℃以上の温度で加熱焼成されて、被着物
上に３００℃以上の高温域でも良好な電気絶縁性と接着
力を具備した耐熱電気絶縁層を構成する。The thus obtained heat-resistant electrical insulating sheet is pasted onto the surface of the adherend to which electrical insulation is desired with the borosiloxane resin coating surface with good adhesiveness facing inside.
Finally, it is heated and baked at a temperature of 300° C. or higher to form a heat-resistant electrical insulating layer on the adherend, which has good electrical insulation and adhesive strength even in a high temperature range of 300° C. or higher.
（作 用）
本発明の耐熱性電気絶縁シートは、金属シートの片面も
しくは両面に、耐熱性および絶縁性に優れたボロシロキ
サン樹脂被膜が形成され、さらにこの被膜を覆って、最
終的に加熱焼成される接着性に優れたボロシロキサン樹
脂塗料が塗布乾燥されているので、３００℃以上の高温
で使用しても、電気絶縁性や接着性等が損なわれること
はない。(Function) The heat-resistant electrical insulating sheet of the present invention has a borosiloxane resin coating with excellent heat resistance and insulation properties formed on one or both sides of a metal sheet, and this coating is further covered and finally heated and baked. Since a borosiloxane resin paint with excellent adhesive properties is applied and dried, electrical insulation properties, adhesive properties, etc. are not impaired even when used at high temperatures of 300° C. or higher.
（実施例） 次に本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
実施例
ボロシロキサン樹脂１００重量部をＮ Ｍ Ｐ ６０重
量部に溶解させてボロシロキサン樹脂溶液を得た。Example A borosiloxane resin solution was obtained by dissolving 100 parts by weight of borosiloxane resin in 60 parts by weight of NMP.
得られたボロシロキサン樹脂溶液５０重量部あたり、シ
リコーン樹脂５０重量部と酸化マグネシウム１５重量部
を添加混合して絶縁性の良好なボロシロキサン樹脂塗料
（Ａ）を得た。また上記ボロシロキサン樹脂溶液５０重
量部あたりシリコーン樹脂５０ｆｆｉ量部を添加混合し
て接着性の良好なボロシロキサン樹脂塗料（Ｂ）を得た
。Per 50 parts by weight of the obtained borosiloxane resin solution, 50 parts by weight of silicone resin and 15 parts by weight of magnesium oxide were added and mixed to obtain a borosiloxane resin paint (A) with good insulation properties. Further, 50 ffi parts of silicone resin was added and mixed per 50 parts by weight of the above borosiloxane resin solution to obtain a borosiloxane resin paint (B) with good adhesiveness.
この後厚さ５０μｍのアルミシートの両面に、まず塗料
（Ａ）を塗布し４００℃で３０分間加熱焼成した０次い
でこれらの塗膜上に、塗料（Ｂ）を塗布し３００℃で５
分間加熱乾燥させて耐熱性電気絶縁シートを得た。After this, paint (A) was first applied to both sides of a 50 μm thick aluminum sheet and baked at 400°C for 30 minutes.Next, paint (B) was applied on top of these coatings and heated at 300°C for 5 minutes.
A heat-resistant electrical insulating sheet was obtained by heating and drying for a minute.
得られた耐熱性電気絶縁シートの各Ｍ厚は、両面の合計
値でそれぞれ３０Ａｔ＋１．２５μ信で、その絶縁破壊
電圧はそれぞれ５００ｖ、３３０ｖであった。なおこの
絶縁破壊電圧の測定にあたっては、塗料（Ｂ）により形
成したｔＪ、、膜については、塗料（Ａ）により形成し
た塗膜同様４００℃で３０分間加熱焼成した後に測定し
た。The resulting heat-resistant electrical insulating sheets had a total thickness of 30 At+1.25 μm on both sides, and their dielectric breakdown voltages were 500 V and 330 V, respectively. Note that, in measuring the dielectric breakdown voltage, the film formed using the paint (B) was heated and baked at 400° C. for 30 minutes, as was the case with the film formed using the paint (A).
次に耐熱性を調べるために、得られた耐熱性電気絶縁シ
ートを２枚のステンレス（ＳＯ８４３０）板問に挟み込
み、３００℃、１１０１Ｃ／ａ＋で５分間加熱加圧して
一体に熱圧着させた後、ＪＩＳ Ｋ ６３０１に基づき
引張速度５ｎｎ／１ｌｉｎで引張剪断力を測定し、さら
にこのものを４００℃で６時間、１２時間、２４時間加
熱した後の引張剪断力を゛同様にして測定した。Next, in order to examine the heat resistance, the obtained heat-resistant electrical insulating sheet was sandwiched between two stainless steel (SO8430) plates and heated and pressed at 300℃ and 1101C/a+ for 5 minutes to bond them together by thermocompression. The tensile shear force was measured at a tensile rate of 5 nn/1 lin based on JIS K 6301, and the tensile shear force after heating this product at 400° C. for 6 hours, 12 hours, and 24 hours was measured in the same manner.
結果は次表に示したとおりで、本発明の耐熱性電気絶縁
シートは、従来不可能であった３００℃を越える温度下
であっても充分使用に耐えるだけの耐熱性を有している
。The results are shown in the table below, and the heat-resistant electrical insulating sheet of the present invention has sufficient heat resistance to withstand use even at temperatures exceeding 300° C., which was previously impossible.
（以下余白）
［発明の効果］
以上説明したように本発明の耐熱性電気絶縁シートは、
耐熱性の良好なボロシロキサン樹脂を主成分とした塗料
を用い、しかも内層を絶縁性の良好なボロシロキサン樹
脂塗料で、外層を接着性の良好なボロシロキサン樹脂塗
料で構成するようにしたので、３００℃以上の高温域で
使用可能であって、しかも電気絶縁性その他の特性も良
好である。(Left below) [Effects of the invention] As explained above, the heat-resistant electrical insulating sheet of the present invention has the following advantages:
We use a paint whose main component is borosiloxane resin with good heat resistance, and the inner layer is made of borosiloxane resin paint with good insulation, and the outer layer is made with borosiloxane resin paint with good adhesive properties. It can be used in a high temperature range of 300°C or higher, and has good electrical insulation and other properties.
図面は本発明の耐熱性電気絶縁シートの一実施例の構造
を示す横断面図である。
１・・・・・・・・・金属シート
２・・・・・・・・・ボロシロキサン樹脂被膜２ａ・・
・・・・内層
２ｂ・・・・・・外層The drawing is a cross-sectional view showing the structure of an embodiment of the heat-resistant electrical insulating sheet of the present invention. 1... Metal sheet 2... Borosiloxane resin coating 2a...
...Inner layer 2b...Outer layer
Claims (1)
シロキサン樹脂塗料を塗布焼付し、この塗布焼付層上に
接着性の良好なボロシロキサン樹脂塗料を塗布し乾燥さ
せてなることを特徴とする耐熱性電気絶縁シート。A heat-resistant product made by applying and baking a borosiloxane resin paint with good insulation properties on one or both sides of a metal sheet, and then applying a borosiloxane resin paint with good adhesion onto the baked layer and drying it. electrical insulation sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62111399A JPS63276832A (en) | 1987-05-07 | 1987-05-07 | Heat resistant electrical insulating sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62111399A JPS63276832A (en) | 1987-05-07 | 1987-05-07 | Heat resistant electrical insulating sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63276832A true JPS63276832A (en) | 1988-11-15 |
Family
ID=14560165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62111399A Pending JPS63276832A (en) | 1987-05-07 | 1987-05-07 | Heat resistant electrical insulating sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63276832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8586190B2 (en) | 2003-03-27 | 2013-11-19 | Nippon Steel & Sumikin Materials Co., Ltd. | Inorganic—organic hybrid-film-coated stainless-steel foil |
-
1987
- 1987-05-07 JP JP62111399A patent/JPS63276832A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8586190B2 (en) | 2003-03-27 | 2013-11-19 | Nippon Steel & Sumikin Materials Co., Ltd. | Inorganic—organic hybrid-film-coated stainless-steel foil |
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