JPH0935532A - Sheet or tape-shaped insulating material - Google Patents
Sheet or tape-shaped insulating materialInfo
- Publication number
- JPH0935532A JPH0935532A JP7207849A JP20784995A JPH0935532A JP H0935532 A JPH0935532 A JP H0935532A JP 7207849 A JP7207849 A JP 7207849A JP 20784995 A JP20784995 A JP 20784995A JP H0935532 A JPH0935532 A JP H0935532A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- flame retardant
- halogen
- thermosetting resin
- based flame
- 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
- Laminated Bodies (AREA)
- Inorganic Insulating Materials (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、トランスやコイル
の層間絶縁や外面絶縁に使用されるシ−トまたはテ−プ
状絶縁材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet- or tape-shaped insulating material used for interlayer insulation or outer surface insulation of transformers and coils.
【０００２】[0002]
【従来の技術】トランスやコイルの層間絶縁や外面絶縁
処理において、熱硬化性樹脂組成物を含浸した繊維質基
材の片面に粘着層を設けたシ−トまたはテ−プ状絶縁材
を巻回し、次いで、含浸樹脂を加熱により硬化させるこ
とが公知である。この場合、熱硬化性樹脂組成物にハロ
ゲン系難燃剤、例えば臭素化エポキシ樹脂及び三酸化ア
ンチモンを熱硬化性樹脂に配合した組成物を使用し、繊
維質基材にエンジニアリングプラスチックであるポリエ
ステル、ポリアミドの織布または不織布、あるいはガラ
スクロスまたは不織布等を使用して、要求される耐熱性
や難燃性等の達成を図ることも公知である。2. Description of the Related Art A sheet or tape-shaped insulating material having an adhesive layer provided on one side of a fibrous base material impregnated with a thermosetting resin composition is wound in interlayer insulation or outer surface insulation of transformers and coils. It is known to rotate and then cure the impregnating resin by heating. In this case, a halogen-based flame retardant is used for the thermosetting resin composition, for example, a composition obtained by blending a brominated epoxy resin and antimony trioxide with the thermosetting resin is used, and the engineering base material polyester, polyamide It is also known to achieve the required heat resistance, flame retardancy, etc. by using the woven or non-woven fabric, the glass cloth or the non-woven fabric, etc.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、近来、
上記シ−トまたはテ−プ状絶縁材に対する耐熱性や難燃
性の要求は、電子部品等の高性能化（はんだ耐熱、安全
性）に伴いますます高度化されつつあり、所定の過酷な
条件に耐え得ることが要求されているが、上記した従来
のシ−トまたはテ−プ状絶縁材においては、かかる過酷
な条件に曝すると、柔軟性の著しい低下を招来し、屈曲
により簡単に破断してしまう。[Problems to be Solved by the Invention]
The requirements for heat resistance and flame retardancy for the above-mentioned sheet or tape-like insulating material are becoming more sophisticated as the performance of electronic parts etc. (solder heat resistance, safety) is becoming higher and higher. Although it is required to be able to withstand the conditions, the conventional sheet- or tape-shaped insulating material described above, when exposed to such harsh conditions, causes a remarkable decrease in flexibility and is easily bent. It will break.
【０００４】このシ−トまたはテ−プ状絶縁材の支持体
であるエンジニアリングプラスチックの繊維質基材にお
いては、その材質からして、相当に過酷な加熱条件にも
充分に耐え得、この材質上の強度が維持されていれば、
上記破断は発生し得ない。而して、上記破断の原因とし
ては、上記のハロゲン系難燃剤が熱分解し、この熱分解
により発生したハロゲンイオン、あるいはラジカル、Ｈ
Ｃｌ、ＨＢｒ等により繊維質基材の劣化が促進される結
果であると推定され、この推定を確認するために、上記
含浸する熱硬化性樹脂組成物においてハロゲン系難燃剤
配合のものと配合無しのものにつき、一定の過酷な条件
でシ−トまたはテ−プ状絶縁材を加熱放置し、変曲点強
度変化率を測定したところ、配合有りのものは７０％以
上の変化率であったのに対し、配合無しのものは１５％
以下の変化率に過ぎず、上記推定を確認できた。In the fibrous base material of the engineering plastic, which is the support of the sheet or tape-shaped insulating material, it is possible to sufficiently withstand considerably severe heating conditions because of its material. If the above strength is maintained,
The rupture cannot occur. The cause of the breakage is that the above halogen-based flame retardant is thermally decomposed, and halogen ions or radicals, H
It is presumed that this is a result of the deterioration of the fibrous base material being accelerated by Cl, HBr, etc., and in order to confirm this estimation, in order to confirm this estimation, the thermosetting resin composition impregnated with or without the halogen-based flame retardant was compounded. The sheet or tape-shaped insulating material was heated and allowed to stand under a certain severe condition, and the rate of change in strength at the inflection point was measured. The rate of change in the composition was 70% or more. On the other hand, 15% without formulation
Only the following rate of change confirmed the above estimation.
【０００５】従来の上記シ−トまたはテ−プ状絶縁材に
おいては、上記一定の過酷な加熱に耐え得ないばかり
か、ＩＥＣ法の比較トラッキング指数（ＣＴＩ値）が４
００〜６００程度と比較的低いことにも問題がある。す
なわち、近来、機器の小型化が図られ、トランスやコイ
ル等の小型化のためには外表面絶縁材の耐トラッキング
性のアップが要求されているが、上記ＣＴＩ値が４００
〜６００程度の耐トラッキング性では、機器の効果的な
小型化は困難である。The conventional sheet- or tape-shaped insulating material cannot withstand the above-mentioned severe heating, and has a comparative tracking index (CTI value) of 4 by the IEC method.
There is also a problem in that it is relatively low at about 00 to 600. That is, in recent years, downsizing of equipment has been attempted, and it has been required to improve the tracking resistance of the outer surface insulating material for downsizing of transformers and coils, but the CTI value is 400 or more.
With a tracking resistance of about 600, it is difficult to effectively downsize the device.
【０００６】本発明の目的は、相当に過酷な加熱にも耐
え得る、ハロゲン系難燃剤含有熱硬化性樹脂組成物で含
浸したシ−トまたはテ−プ状絶縁材を提供することにあ
る。本発明の更なる目的は、相当に過酷な加熱にも耐え
得、しかもＣＴＩ値が６００以上の、ハロゲン系難燃剤
含有熱硬化性樹脂組成物で含浸したシ−トまたはテ−プ
状絶縁材を提供することにある。An object of the present invention is to provide a sheet- or tape-shaped insulating material impregnated with a thermosetting resin composition containing a halogen-based flame retardant, which can withstand considerably severe heating. A further object of the present invention is a sheet- or tape-shaped insulating material impregnated with a halogen-based flame retardant-containing thermosetting resin composition having a CTI value of 600 or more, which can withstand considerably severe heating. To provide.
【０００７】[0007]
【課題を解決するための手段】本発明に係るシ−トまた
はテ−プ状絶縁材は、熱硬化性樹脂とハロゲン系難燃剤
を含有する熱硬化性樹脂組成物を繊維質基材に含浸した
絶縁材において、繊維質基材にエンジニアリングプラス
チック繊維基材またはガラス繊維基材を使用し、ハロゲ
ン系難燃剤に分解開始温度が２００℃以上のものを使用
したことを特徴とする構成であり、ハロゲン系難燃剤を
含有しない熱硬化性樹脂組成物層を耐トラッキング層と
して片面に設け、他面に粘着材層を設けることができ、
通常、ハロゲン系難燃剤には、含ハロゲン化合物と三酸
化アンチモンとの併用系が使用される。A sheet or tape-shaped insulating material according to the present invention is a fibrous base material impregnated with a thermosetting resin composition containing a thermosetting resin and a halogen-based flame retardant. In the insulating material, the engineering plastic fiber base material or the glass fiber base material is used as the fibrous base material, and the halogen-based flame retardant having a decomposition start temperature of 200 ° C. or higher is used. A thermosetting resin composition layer containing no halogen-based flame retardant can be provided on one side as a tracking resistant layer, and an adhesive layer can be provided on the other side.
Usually, a combined use system of a halogen-containing compound and antimony trioxide is used as the halogen-based flame retardant.
【０００８】[0008]
【発明の実施の形態】本発明において、熱硬化性樹脂に
は例えば、エポキシ樹脂、ポリエステル樹脂、またはメ
ラミン樹脂等の単独または二種以上を使用でき、分解開
始温度２００℃以上（分解開始温度は加熱重量減少曲線
から求められる）のハロゲン系難燃剤には、含ハロゲン
化合物、例えば臭素化ＴＡＢ変性オリゴマ−と三酸化ア
ンチモンとの併用系、その他金属酸化物或いは水酸物、
水和物等の難燃助剤との併用系を使用できる。また、熱
硬化性樹脂組成物には、Ｍｇ（ＯＨ）2、ＣａＣｏ3、Ａ
ｌ（ＯＨ）3、ＳｉＯ2、ガラス繊維、ポリイミド等の微
粉末の単独または二種以上を添加できる。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as the thermosetting resin, for example, an epoxy resin, a polyester resin, a melamine resin or the like can be used alone or in combination of two or more thereof, and the decomposition starting temperature is 200 ° C. or more (the decomposition starting temperature is The halogen-based flame retardant (determined from the heating weight loss curve) is a halogen-containing compound, for example, a combination system of a brominated TAB-modified oligomer and antimony trioxide, other metal oxides or hydroxides,
A combination system with a flame retardant aid such as a hydrate can be used. Further, the thermosetting resin composition contains Mg (OH) 2 , CaCo 3 , and A.
Fine powders such as 1 (OH) 3 , SiO 2 , glass fiber and polyimide may be added alone or in combination of two or more.
【０００９】本発明において、エンジニアリングプラス
チック繊維基材にはポリエステル、ポリアミド、ポリイ
ミド、ポリフエニレンスルファイド、アクリル等の織布
または不織布を使用でき、ガラス繊維基材にはガラスク
ロス、ガラス不織布を使用でき、これら繊維質基材の常
温破断伸度は５％以上である。織布の場合、繊維の打ち
込み本数は、通常、縦５〜１５０本／インチ、横５〜１
５０本／インチとされる。繊維質基材の厚みは、通常２
０〜３００μｍとされる（２０μｍ以下では、機械的強
度が不足し、３００μｍ以上では、反発性が大となり端
末剥離が生じ易くなる）。In the present invention, a woven or non-woven fabric of polyester, polyamide, polyimide, polyphenylene sulfide, acrylic or the like can be used as the engineering plastic fiber base material, and glass cloth or glass non-woven fabric can be used as the glass fiber base material. It is possible, and the room-temperature breaking elongation of these fibrous base materials is 5% or more. In the case of woven cloth, the number of fibers to be driven is usually 5 to 150 fibers / inch in the length and 5 to 1 in the width.
50 lines / inch. The thickness of the fibrous base material is usually 2
It is set to 0 to 300 μm (when it is 20 μm or less, the mechanical strength is insufficient, and when it is 300 μm or more, the resilience becomes large and the terminal peeling easily occurs).
【００１０】本発明における、繊維質基材への熱硬化性
樹脂組成物の含浸は、例えば、熱硬化性樹脂組成物の溶
剤溶液に繊維質基材を浸漬し、次いで乾燥すること（デ
ィピングコ−ト）により行うことができ、含浸厚みは、
通常５〜６００μｍとされる（５μｍ以下では、難燃化
を達成できず、ＵＬ−５１０ＦＲを満たし得ない。２５
０μｍ以上では、剛性が高くなりすぎ、巻回が困難にな
る）。In the present invention, the fibrous base material is impregnated with the thermosetting resin composition by, for example, immersing the fibrous base material in a solvent solution of the thermosetting resin composition and then drying (dip-coating). And the impregnation thickness is
Usually, it is set to 5 to 600 μm (if it is 5 μm or less, flame retardance cannot be achieved, and UL-510FR cannot be satisfied.
If it is 0 μm or more, the rigidity becomes too high and winding becomes difficult).
【００１１】本発明において、粘着層には、アクリル
系、ゴム系、シリコ−ンゴム系等の通常の粘着剤が使用
され、その厚みは、通常５〜１００μｍとされる（５μ
ｍ以下では、粘着が困難であり、１００μｍ以上では保
管時での粘着剤のはみ出しが生じ易くなり、また粘着剤
のコストが高くなる）。この粘着剤にも、上記のハロゲ
ン系難燃剤を添加することもできる。In the present invention, an ordinary adhesive such as acrylic, rubber or silicone rubber is used for the adhesive layer, and its thickness is usually 5 to 100 μm (5 μm.
If the thickness is m or less, adhesion is difficult, and if it is 100 μm or more, the adhesive tends to stick out during storage, and the cost of the adhesive increases. The above halogen-based flame retardant can also be added to this adhesive.
【００１２】本発明において、耐トラッキング層として
設ける熱硬化性樹脂組成物としては、エポキシ樹脂、ポ
リエステル樹脂、またはメラミン樹脂等の単独または二
種以上、或いは、これらにＭｇ（ＯＨ）2、ＣａＣＯ3、
Ａｌ（ＯＨ）3、ＳｉＯ2、ガラス繊維等の無機質微粉末
を添加したものを使用でき、その層厚みは、通常５〜５
０μｍとされる。５０μｍ以上では、前記ハロゲン系難
燃剤含有熱硬化性樹脂組成物の含浸量に対する割合が多
くなって難燃性を保証し難く、５μｍ以下では、ＩＥＣ
法の比較トラッキング指数を６００以上に維持すること
が難しく、前記した機器の小型化を達成し難くなる。な
お、ＩＥＣ法耐トラッキング性試験（ＩＥＣ１１２Ｖｅ
ｒ３Ａ法）による比較トラッキング指数とは、試験片に
商用周波数の電圧を印加し、その試験片に０．１％の塩
化アンモニウム水溶液を３０秒間隔で滴下し、試験片が
トラッキンク破壊するまでの滴下数を計測し、滴下数５
０でトラッキンク破壊するときのその印加電圧をいう。In the present invention, as the thermosetting resin composition provided as the tracking resistant layer, epoxy resin, polyester resin, melamine resin or the like may be used alone or in combination of two or more thereof, or Mg (OH) 2 , CaCO 3 may be added thereto. ,
Al (OH) 3 , SiO 2 , glass fibers, and other inorganic fine powders added can be used, and the layer thickness is usually 5 to 5
0 μm. When the thickness is 50 μm or more, the ratio of the halogen-based flame retardant-containing thermosetting resin composition to the impregnated amount increases, and it is difficult to guarantee the flame retardancy.
It is difficult to maintain the comparative tracking index of the method at 600 or more, and it becomes difficult to achieve the above-described miniaturization of the device. In addition, the IEC method tracking resistance test (IEC112Ve
The comparative tracking index according to the r3A method) is a voltage at a commercial frequency applied to a test piece, a 0.1% ammonium chloride aqueous solution is dropped onto the test piece at intervals of 30 seconds, and the test piece is dropped until the track is broken. Measure the number of drops 5
0 means the applied voltage when the track is broken.
【００１３】本発明に係るシ−トまたはテ−プ状絶縁材
においては、１３０℃〜１９０℃で少なくとも１００時
間以上加熱したときの変曲点引張り強度変化率が５０％
以下の耐熱性を満たし得る。In the sheet or tape insulating material according to the present invention, the rate of change in tensile strength at the inflection point is 50% when heated at 130 ° C. to 190 ° C. for at least 100 hours or more.
The following heat resistance can be satisfied.
【００１４】上記において、（１）ハロゲン系難燃剤に
分解開始温度２００℃以上のものを使用しているから、
１６２℃×７日間程度の加熱でもハロゲン系難燃剤の分
解を阻止でき、繊維質基材の劣化を防止でき、繊維質基
材のエンジニアリングプラスチック繊維基材またはガラ
ス繊維基材としての優れた機械的強度を維持し得、シ−
トまたはテ−プ状絶縁材の応力破断を回避できる。この
ことは、後述するように、本発明の実施例品では、１６
２℃×７日間加熱後での変曲点引張強度変化率が１５％
であって機械的特性の変化が殆どないのに対し、比較例
品では、同上加熱後での変曲点引張強度変化率が８０％
にも達し機械的特性の変化が顕著であることからも、確
認できる。また、（２）ハロゲン系難燃剤を含まない耐
トラッキング指数の高い熱硬化性樹脂組成物層を、ハロ
ゲン系難燃剤含有熱硬化性樹脂組成物含浸層の難燃作用
を相殺しない程度の厚さで設けることによって、難燃性
を充分に保証しつつ耐トラッキング性を付与できる。こ
のことは、後述するように、本発明の実施例品では、Ｃ
ＴＩ値６００以上のもとで１６２℃×７日間加熱後での
変曲点引張強度変化率を１５％といった低い値になし得
ることからも、確認できる。なお、材料の変曲点引張強
度とは、その材料の伸率（％）−応力曲線を求め、その
曲線に対し原点を通る接線を描き、この接線の２％伸率
での応力を指し、変曲点引張強度が小であるほど、弾性
特性の変化が少なく、材料の劣化が軽度であることを意
味する。In the above, (1) since the halogen-based flame retardant having a decomposition starting temperature of 200 ° C. or higher is used,
Degradation of halogen-based flame retardants can be prevented even by heating at 162 ° C for about 7 days, deterioration of fibrous base materials can be prevented, and excellent mechanical properties of fibrous base materials as engineering plastic fiber base materials or glass fiber base materials. The strength can be maintained,
It is possible to avoid stress rupture of the insulating material in the form of tape or tape. As described below, this is 16 in the embodiment of the present invention.
The rate of change in tensile strength at the inflection point after heating at 2 ° C for 7 days is 15%
However, in the comparative example product, the rate of change in tensile strength at the inflection point after heating is 80%.
It can also be confirmed from the fact that the mechanical properties have significantly changed. In addition, (2) a thermosetting resin composition layer having a high tracking resistance that does not contain a halogen-based flame retardant is thick enough not to cancel the flame-retardant action of the halogen-based flame-retardant-containing thermosetting resin composition-impregnated layer. By providing in (1), tracking resistance can be imparted while sufficiently ensuring flame retardancy. As will be described later, this is C in the example product of the present invention.
It can also be confirmed from the fact that the rate of change in tensile strength at the inflection point after heating at 162 ° C. for 7 days under a TI value of 600 or more can be made as low as 15%. In addition, the inflection point tensile strength of a material means an elongation (%)-stress curve of the material, draws a tangent line passing through the origin to the curve, and indicates a stress at 2% elongation of this tangent line. The smaller the tensile strength at the inflection point, the smaller the change in the elastic properties and the less the deterioration of the material.
【００１５】[0015]
〔実施例１〕繊維質基材には厚み６０μｍのポリエステ
ルクロスを使用した。含浸用の熱硬化性樹脂組成物に
は、ポリエステル樹脂１００重量部，エポキシ樹脂３０
重量部，メラミン樹脂１０重量部，硬化剤（酸無水物）
２重量部から成る組成物に、臭素化ＴＡＢ変性オリゴマ
−５０重量部及び三酸化アンチモン１００重量部から成
るハロゲン系難燃剤を添加したものを使用し、これをデ
ッピングコ−タで含浸して厚み１１０μｍのハロゲン系
難燃剤含有の熱硬化性樹脂組成物含浸繊維質基材を得
た。このハロゲン系難燃剤の分解開始温度は３５０℃で
ある。更に、片面側に、ポリエステル樹脂５０重量部，
エポキシ樹脂５０重量部，メラミン樹脂３０重量部，硬
化剤（酸無水物）２重量部から成る組成物層を厚み１０
μｍで設け、他面側にアクリル系粘着剤層を厚み５０μ
ｍで塗工した。含浸熱硬化性樹脂組成物及び片面の熱硬
化性樹脂組成物層とも硬化してある。Example 1 A polyester cloth having a thickness of 60 μm was used as the fibrous base material. The thermosetting resin composition for impregnation includes 100 parts by weight of polyester resin and 30 parts of epoxy resin.
Parts by weight, 10 parts by weight of melamine resin, curing agent (acid anhydride)
A composition comprising 2 parts by weight and a halogen-based flame retardant comprising 50 parts by weight of a brominated TAB-modified oligomer and 100 parts by weight of antimony trioxide was used and impregnated with a depping coater to a thickness of 110 μm. A halogen-based flame retardant-containing thermosetting resin composition-impregnated fibrous base material was obtained. The decomposition initiation temperature of this halogen-based flame retardant is 350 ° C. Furthermore, on one side, 50 parts by weight of polyester resin,
A composition layer comprising 50 parts by weight of an epoxy resin, 30 parts by weight of a melamine resin, and 2 parts by weight of a curing agent (an acid anhydride) has a thickness of 10 parts.
The thickness is 50 μm, and the acrylic adhesive layer is 50 μm thick on the other side.
It was coated with m. Both the impregnated thermosetting resin composition and the thermosetting resin composition layer on one side are cured.
【００１６】〔実施例２〕実施例１に対し、繊維質基材
に難燃性ポリエステルクロスを使用した以外、実施例１
に同じとした。 〔実施例３〕繊維質基材には厚み９０μｍのポリエステ
ル不織布を使用した。実施例１と同じ熱硬化性樹脂組成
物（ポリエステル樹脂１００重量部，エポキシ樹脂３０
重量部，メラミン樹脂１０重量部，硬化剤（酸無水物）
２重量部から成る組成物に、臭素化ＴＡＢ変性オリゴマ
−５０重量部及び三酸化アンチモン１００重量部から成
るハロゲン系難燃剤を添加）をデッピングコ−タで含浸
して厚み１９０μｍのハロゲン系難燃剤含有の熱硬化性
樹脂組成物含浸繊維質基材を得た。このハロゲン系難燃
剤の分解開始温度は３５０℃である。更に、実施例１と
同様、片面側に、ポリエステル樹脂５０重量部，エポキ
シ樹脂５０重量部，メラミン樹脂３０重量部，硬化剤
（酸無水物）２重量部から成る組成物層を厚み１０μｍ
で設け、他面側にアクリル系粘着剤層を厚み５０μｍで
塗工した。Example 2 Example 1 is different from Example 1 except that flame-retardant polyester cloth is used as the fibrous base material.
And the same. Example 3 A polyester nonwoven fabric having a thickness of 90 μm was used as the fibrous base material. The same thermosetting resin composition as in Example 1 (100 parts by weight of polyester resin, 30 parts of epoxy resin)
Parts by weight, 10 parts by weight of melamine resin, curing agent (acid anhydride)
A halogen flame retardant having a thickness of 190 μm was obtained by impregnating a composition comprising 2 parts by weight with a halogen flame retardant comprising 50 parts by weight of a brominated TAB-modified oligomer and 100 parts by weight of antimony trioxide) with a depping coater. A fibrous base material impregnated with the thermosetting resin composition was obtained. The decomposition initiation temperature of this halogen-based flame retardant is 350 ° C. Further, as in Example 1, a composition layer consisting of 50 parts by weight of a polyester resin, 50 parts by weight of an epoxy resin, 30 parts by weight of a melamine resin, and 2 parts by weight of a curing agent (anhydride) was formed on one side to have a thickness of 10 μm.
And an acrylic pressure-sensitive adhesive layer having a thickness of 50 μm was applied to the other surface side.
【００１７】〔比較例１〕繊維質基材には実施例１と同
様、厚み６０μｍのポリエステルクロスを使用した。含
浸用の熱硬化性樹脂組成物には、ポリエステル樹脂１０
０重量部，メラミン樹脂５０重量部，硬化剤（酸無水
物）２重量部にハロゲン系難燃剤としての臭素化エポキ
シ樹脂（エピクロン１１２５：臭素濃度２５％）８０重
量部及び三酸化アンチモン９０重量部を配合した組成物
を使用し、これをデッピングコ−タで含浸して厚み１１
０μｍのハロゲン系難燃剤含有熱硬化性樹脂組成物含浸
繊維質基材を得た。このハロゲン系難燃剤の分解開始温
度は１９０℃である。更に、アクリル系粘着剤層を厚み
５０μｍで塗工した。なお、機器への被着・硬化を模擬
するために、含浸は硬化してある。 〔比較例２〕繊維質基材には実施例１と同じポリエステ
ル不織布を使用した。他は比較例１と同じにした。Comparative Example 1 A polyester cloth having a thickness of 60 μm was used as the fibrous base material as in Example 1. The thermosetting resin composition for impregnation includes polyester resin 10
0 parts by weight, 50 parts by weight of melamine resin, 2 parts by weight of curing agent (anhydride), 80 parts by weight of brominated epoxy resin (Epiclone 1125: bromine concentration 25%) as a flame retardant, and 90 parts by weight of antimony trioxide. Was used to impregnate it with a depping coater to a thickness of 11
A 0 μm halogen-based flame retardant-containing thermosetting resin composition-impregnated fibrous base material was obtained. The decomposition initiation temperature of this halogen-based flame retardant is 190 ° C. Furthermore, an acrylic pressure-sensitive adhesive layer was applied to a thickness of 50 μm. Note that the impregnation is hardened in order to imitate the adhesion and hardening of the equipment. [Comparative Example 2] The same polyester nonwoven fabric as in Example 1 was used as the fibrous base material. Others were the same as in Comparative Example 1.
【００１８】これらの実施例及び比較例につき、初期引
張り強度並びに伸率び測定したところ、表１に示す通
り、実施例よりも比較例の方が良好であった。しかしな
がら、表１に示すように、初期、１６２℃×５日及び１
６２℃×７日経過時での変曲点引張強度を測定し、初期
と１６２℃×７日経過時の間での変曲点引張強度変化率
を測定したところ、実施例品１，２では１５％程度（実
施例１では１６．４％，実施例２では１３．５％）と低
いのに対し、比較例１では７０％にも達し、また、実施
例品３では１６．７％と低いのに対し、比較例２では８
６．７％にも達し、実施例品は比較例品に較べ、支持体
であるポリエステルクロスまたは不織布の劣化が少ない
ことが明らかである。また、ＣＴＩ値を測定したとこ
ろ、表１に示す通り、比較例の４００〜６００に対し、
実施例では６００以上であり、実施例が優れた耐熱劣化
性のもとで優れた耐トラッキング性を保証しえることが
明らかである。When the initial tensile strength and elongation of these Examples and Comparative Examples were measured, as shown in Table 1, the Comparative Examples were better than the Examples. However, as shown in Table 1, initial, 162 ° C. × 5 days and 1
The inflection point tensile strength was measured at 62 ° C. × 7 days, and the inflection point tensile strength change rate between the initial stage and 162 ° C. × 7 days was measured. Although it is as low as about 16.4% in Example 1 and 13.5% in Example 2, it reaches 70% in Comparative Example 1 and is as low as 16.7% in Example Product 3. On the other hand, in Comparative Example 2, 8
It reached 6.7%, and it is clear that the product of the example has less deterioration of the polyester cloth or the non-woven fabric as the support than the product of the comparative example. Moreover, when the CTI value was measured, as shown in Table 1, as compared with 400 to 600 of Comparative Examples,
In the example, it is 600 or more, and it is clear that the example can assure excellent tracking resistance under excellent heat deterioration resistance.
【００１９】[0019]
【発明の効果】本発明によれば、難燃性、長期加熱に対
する耐熱性、耐トラッキング性に優れた熱硬化性樹脂組
成物含浸のシ−トまたはテ−プ状絶縁材を提供でき、本
発明は機器の耐熱性、安全性、信頼性の向上、機器の小
型化等にきわめて有用である。INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a sheet or tape-shaped insulating material impregnated with a thermosetting resin composition, which is excellent in flame retardancy, heat resistance against long-term heating, and tracking resistance. INDUSTRIAL APPLICABILITY The invention is extremely useful for improving heat resistance, safety, reliability of equipment, downsizing of equipment, and the like.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｂ 3/00 Ｈ０１Ｂ 3/00 Ｇ (72)発明者 奥野 敏光 大阪府茨木市下穂積１丁目１番２号 日東 電工株式会社内 (72)発明者 田中 義憲 福井県坂井郡丸岡町舟寄110号１番地１ 新興化学工業株式会社丸岡工場内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical display location H01B 3/00 H01B 3/00 G (72) Inventor Toshimitsu Okuno 1-chome Shimohozumi, Ibaraki-shi, Osaka No. 2 Nitto Denko Co., Ltd. (72) Inventor Yoshinori Tanaka No. 110 Funune, 110 Marunooka, Sakai-gun, Fukui Prefecture 1 Inside Maruoka Plant, Shinko Kagaku Kogyo Co., Ltd.
Claims (3)
る熱硬化性樹脂組成物を繊維質基材に含浸した絶縁材に
おいて、繊維質基材にエンジニアリングプラスチック繊
維基材またはガラス繊維基材を使用し、ハロゲン系難燃
剤に分解開始温度が２００℃以上のものを使用したこと
を特徴とするシ−トまたはテ−プ状絶縁材。1. An insulating material comprising a fibrous base material impregnated with a thermosetting resin composition containing a thermosetting resin and a halogen-based flame retardant, wherein the fibrous base material is an engineering plastic fiber base material or a glass fiber base material. And a halogen-based flame retardant having a decomposition start temperature of 200 ° C. or higher, which is a sheet- or tape-shaped insulating material.
る熱硬化性樹脂組成物を繊維質基材に含浸した絶縁材に
おいて、繊維質基材にエンジニアリングプラスチック繊
維基材またはガラス繊維基材を使用し、ハロゲン系難燃
剤に分解開始温度が２００℃以上のものを使用し、ハロ
ゲン系難燃剤を含有しない熱硬化性樹脂組成物層を耐ト
ラッキング層として片面に設け、他面に粘着材層を設け
たことを特徴とするシ−トまたはテ−プ状絶縁材。2. An insulating material comprising a fibrous base material impregnated with a thermosetting resin composition containing a thermosetting resin and a halogen-based flame retardant, wherein the fibrous base material is an engineering plastic fiber base material or a glass fiber base material. , A halogen-based flame retardant having a decomposition start temperature of 200 ° C. or higher is used, and a thermosetting resin composition layer containing no halogen-based flame retardant is provided on one surface as a tracking resistant layer, and an adhesive material is provided on the other surface. A sheet- or tape-shaped insulating material having a layer.
三酸化アンチモンとの併用系である請求項１または２記
載のシ−トまたはテ−プ状絶縁材。3. The sheet- or tape-shaped insulating material according to claim 1, wherein the halogen-based flame retardant is a combined use of a halogen-containing compound and antimony trioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20784995A JP3776954B2 (en) | 1995-07-22 | 1995-07-22 | Sheet or tape insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20784995A JP3776954B2 (en) | 1995-07-22 | 1995-07-22 | Sheet or tape insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0935532A true JPH0935532A (en) | 1997-02-07 |
| JP3776954B2 JP3776954B2 (en) | 2006-05-24 |
Family
ID=16546553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20784995A Expired - Fee Related JP3776954B2 (en) | 1995-07-22 | 1995-07-22 | Sheet or tape insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3776954B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010076261A (en) * | 2008-09-26 | 2010-04-08 | Teraoka Seisakusho:Kk | Heat-resisting adhesive tape |
| CN102787498A (en) * | 2012-08-06 | 2012-11-21 | 衡阳星鑫绝缘材料有限公司 | Protecting sleeve of high-temperature heat-insulation electromagnetic shielding instrument and production method thereof |
-
1995
- 1995-07-22 JP JP20784995A patent/JP3776954B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010076261A (en) * | 2008-09-26 | 2010-04-08 | Teraoka Seisakusho:Kk | Heat-resisting adhesive tape |
| CN102787498A (en) * | 2012-08-06 | 2012-11-21 | 衡阳星鑫绝缘材料有限公司 | Protecting sleeve of high-temperature heat-insulation electromagnetic shielding instrument and production method thereof |
| CN102787498B (en) * | 2012-08-06 | 2015-02-25 | 衡阳星鑫绝缘材料有限公司 | Production method for protecting sleeve of high-temperature heat-insulation electromagnetic shielding instrument and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3776954B2 (en) | 2006-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH034590B2 (en) | ||
| JPH0935532A (en) | Sheet or tape-shaped insulating material | |
| GB2187468A (en) | Improvements in or relating to electrical insulating tape | |
| US4960641A (en) | Stranded insulated wire | |
| JP3734264B2 (en) | Halogen-free mixture, self-extinguishing prepreg containing this mixture and use of said prepreg | |
| PL194825B1 (en) | Method of manufacturing fine-mica impregnable strips with a built-in accelerator | |
| JP3812986B2 (en) | Imidazole group-containing surface treatment agent and glass cloth | |
| JP2007002187A (en) | Thermosetting resin composition, and prepreg, substrate and conductive foil-clad substrate, using the same | |
| US4324837A (en) | Self-bonding magnet wire | |
| EP0049128A1 (en) | Insulated electrical coil | |
| JP2003183982A (en) | Glass fiber woven fabric treated for preventing dislocation | |
| JP2000212504A (en) | Coating film for coil | |
| JPH09137041A (en) | Resin composition for impregnation and electrical insulating coil using the same | |
| JPS6296580A (en) | Fire-retardant adhesive | |
| JPH0586214A (en) | Prepreg for laminate and copper-clad laminate using the same | |
| JPH07296647A (en) | High heat resistant insulated wire | |
| JPS60143649A (en) | Multilayer interconnection structure for semiconductor device | |
| JPS63267514A (en) | Material for flexible printed circuit board | |
| JP2681976B2 (en) | Laminated film and its use | |
| JPS6233726B2 (en) | ||
| JP2565640Y2 (en) | Insulation structure of rotating electric machine coil | |
| JPS6079083A (en) | Adhesive tape | |
| JPH0680154B2 (en) | Insulated wire | |
| JPS633401B2 (en) | ||
| JPH06240023A (en) | Electrical insulating coil and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040416 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050614 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050722 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060221 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060224 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090303 Year of fee payment: 3 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090303 Year of fee payment: 3 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090303 Year of fee payment: 3 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090303 Year of fee payment: 3 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090303 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100303 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100303 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110303 Year of fee payment: 5 |
|
| LAPS | Cancellation because of no payment of annual fees |