JP2566304B2 - Tracking resistant self-bonding tape - Google Patents
Tracking resistant self-bonding tapeInfo
- Publication number
- JP2566304B2 JP2566304B2 JP63288525A JP28852588A JP2566304B2 JP 2566304 B2 JP2566304 B2 JP 2566304B2 JP 63288525 A JP63288525 A JP 63288525A JP 28852588 A JP28852588 A JP 28852588A JP 2566304 B2 JP2566304 B2 JP 2566304B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- self
- tracking resistance
- tracking
- 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.)
- Expired - Lifetime
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Adhesive Tapes (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は耐トラッキング自己融着テープの改良に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to an improvement in a tracking resistant self-fusing tape.
塩害地域で使用するゴム、プラスチック絶縁材料にお
いては、高度の耐トラッキング性が要求される。ゴム、
プラスチック絶縁材料の耐トラッキング性を向上するた
めの手段としては、耐トラッキング剤を添加することが
常套手段である。耐トラッキング剤として各種の金属水
酸化物が公知であり、その中でも水酸化マグネシウムが
優秀である。High tracking resistance is required for rubber and plastic insulation materials used in salt-damaged areas. Rubber,
As a means for improving the tracking resistance of the plastic insulating material, it is a conventional means to add a tracking resistance agent. Various metal hydroxides are known as anti-tracking agents, and among them, magnesium hydroxide is excellent.
＜解決しようとする問題＞ ところで、自己融着テープの耐トラッキング性向上の
ために耐トラッキング材を添加すると、自己融着性の低
下を免れ得ず、耐トラッキング性の向上効果に秀れた上
記水酸化マグネシウムの場合でも、所定の耐トラッキン
グ性を発揮させようとすれば、自己融着性の顕著な低下
を免れ難い。<Problems to be Solved> By the way, when a tracking resistant material is added to improve the tracking resistance of the self-bonding tape, the self-bonding property is unavoidably deteriorated and the tracking resistance is effectively improved. Even in the case of magnesium hydroxide, it is unavoidable that the self-fusing property is remarkably lowered if the predetermined tracking resistance is to be exhibited.
本発明の目的は、自己融着性を確保し得、かつ、耐ト
ラッキング性に秀れた自己融着性テープを提供すること
にある。An object of the present invention is to provide a self-fusing tape capable of ensuring self-fusing property and excellent in tracking resistance.
＜課題を解決するための手段＞ 本発明に係る耐トラッキング自己融着テープは、ブチ
ルゴム60〜150重量部、高分子量ポリイソブチレン30〜7
0重量部、低分子量ポリイソブチレン20〜80重量部、低
密度ポリエチレン50〜150重量部からなる混合物100重量
部に、20〜80重量部の水酸化マグネシウムと25重量部以
下の金属炭酸塩を配合せる組成物によって成形したこと
を特徴とする構成である。<Means for Solving the Problems> The tracking resistant self-fusing tape according to the present invention comprises 60 to 150 parts by weight of butyl rubber and 30 to 7 of high molecular weight polyisobutylene.
100 parts by weight of a mixture consisting of 0 parts by weight, low molecular weight polyisobutylene 20 to 80 parts by weight, and low density polyethylene 50 to 150 parts by weight, 20 to 80 parts by weight of magnesium hydroxide and 25 parts by weight or less of metal carbonate are blended. The composition is characterized by being molded from the composition.
本発明において、ベース混合物であるブチルゴム60〜
150重量部、高分子量ポリイソブチレン30〜70重量部、
低分子量ポリイソブチレン20〜80重量部、低密度ポリエ
チレン50〜150重量部は非架橋型自己融着テープとして
の通常の組成である。上記高分子量ポリイソブチレンの
粘度平均分子量は３万以上、好ましくは14万、低分子量
ポリイソブチレンの粘度平均分子量は３万未満、好まし
くは１万２千であり、低密度ポリエチレンの密度は0.90
〜0.94が好適である。In the present invention, the base mixture butyl rubber 60 to
150 parts by weight, high molecular weight polyisobutylene 30 to 70 parts by weight,
Low molecular weight polyisobutylene (20 to 80 parts by weight) and low density polyethylene (50 to 150 parts by weight) have the usual composition as a non-crosslinked self-bonding tape. The high molecular weight polyisobutylene has a viscosity average molecular weight of 30,000 or more, preferably 140,000, and the low molecular weight polyisobutylene has a viscosity average molecular weight of less than 30,000, preferably 12,000, and the low density polyethylene has a density of 0.90.
~ 0.94 is preferred.
本発明において、水酸化マグネシウムと金属炭素塩と
は耐トラッキング性の向上に相乗的効果を呈する。水酸
化マグネシウムの添加量を20〜80重量部と限定した理由
は20重量部以下では耐トラッキング性が不足し、80重量
部以上では所定の自己融着性を保証し難いからである。
金属炭酸塩の添加量を25重量部以下とした理由は、25重
量部以上では、耐トラッキング性向上効果が少なく、か
えって自己融着性の低下を招来するからである。金属炭
酸塩には、例えば、重質炭酸カルシウム、炭酸マグネシ
ウム、炭酸コバルト等を使用できる。In the present invention, magnesium hydroxide and a metal carbon salt have a synergistic effect in improving tracking resistance. The reason why the addition amount of magnesium hydroxide is limited to 20 to 80 parts by weight is that tracking resistance is insufficient at 20 parts by weight or less, and it is difficult to guarantee a predetermined self-fusion property at 80 parts by weight or more.
The reason why the amount of the metal carbonate added is 25 parts by weight or less is that when it is 25 parts by weight or more, the effect of improving the tracking resistance is small and the self-fusion property is rather deteriorated. As the metal carbonate, for example, heavy calcium carbonate, magnesium carbonate, cobalt carbonate or the like can be used.
本発明おいて、水酸化マグネシウムには、粒径１μｍ
以下で、脂肪酸、脂肪酸塩、チタネートカップリング剤
又はシランカップリング剤等によって処理したものを用
いることが好ましい。In the present invention, magnesium hydroxide has a particle size of 1 μm.
In the following, it is preferable to use those treated with a fatty acid, a fatty acid salt, a titanate coupling agent, a silane coupling agent, or the like.
＜実施例の説明＞ 以下、本発明の実施例について説明する。<Description of Examples> Examples of the present invention will be described below.
実施例の１ 使用したベース混合物の配合は次の通りである。Example 1 The formulation of the base mixture used is as follows.
ブチルゴム（ポリサーインターナショナルSA（株）社製 商品名：（ポリサーブチル100） 100重量部 高分子量ポリイソブチレン（エクソンケミカル（株）社
製 商品名：ピスタネックスＬ−100） 50重量部 低密度ポリエチレン 90重量部 低分子量ポリイソブチレン（エクソンケミカル（株）社
製 商品名：ビスタネックスLMMH） 40重量部 カーボンブラック ２重量部 上記のベース混和物100重量部に対し、水酸化マグネ
シウム（協和化学（株）社製、商品名：キスマ5B）；を
30重量部、炭酸カルシウム（丸尾カルシウム（株）社
製、重質炭酸カルシウム）を10重量部添加して、ミキシ
ングロールで混練し、自己融着性の評価のために、カレ
ンダーロールで厚み0.5mmの試料を得、また、耐トラッ
キング性評価のために、押出機によって厚み6mmの試料
を得た。Butyl rubber (manufactured by Polycer International SA Co., Ltd.) Product name: (Polycerbutyl 100) 100 parts by weight High molecular weight polyisobutylene (manufactured by Exxon Chemical Co., Ltd. product name: Pistanex L-100) 50 parts by weight Low density polyethylene 90 parts by weight Part Low molecular weight polyisobutylene (manufactured by Exxon Chemical Co., Ltd., trade name: Vistanex LMMH) 40 parts by weight carbon black 2 parts by weight With respect to 100 parts by weight of the above base admixture, magnesium hydroxide (manufactured by Kyowa Chemical Co., Ltd.) , Product name: Kisuma 5B);
30 parts by weight and 10 parts by weight of calcium carbonate (heavy calcium carbonate manufactured by Maruo Calcium Co., Ltd.) were added and kneaded with a mixing roll, and a calender roll had a thickness of 0.5 mm for evaluation of self-bonding property. And a 6 mm thick sample were obtained by an extruder for tracking resistance evaluation.
これらの試料により自己融着性を評価したところ良で
あった。なお自己融着性の評価方法、並びに良、悪の評
価基準は次の通りである。The self-bonding property of these samples was evaluated and it was good. The self-fusing property evaluation method and the evaluation criteria for goodness and badness are as follows.
テープに200％の伸びを与えた状態のまま直径15mm
φ、長さ約200mmの硝子管にテープを同一円周方向に重
ね巻きし、最後の１巻きは指で軽く押え付ける。巻き厚
さは5mm以上である。15mm diameter with the tape stretched 200%
Roll tape around a glass tube of φ and length of about 200 mm in the same circumferential direction, and lightly press the last one roll with your finger. The winding thickness is 5 mm or more.
巻き付け10分放置後、鋭利な刃物で縦に切断した時、
断面に層間剥れがないものを良好とする。又、力を加え
た時層間が剥れたり、切断した時層間が剥れたものを劣
悪とする。When left for 10 minutes after wrapping and then cut vertically with a sharp blade,
A cross-section without peeling between layers is considered good. In addition, when the layers are peeled off when a force is applied, or when the layers are cut off, the layers are peeled off.
また、耐トラッキング性の評価はASTMD−2303（傾斜
板法）に準拠して行い、試料の表面はシリコーンカーバ
イトのサンドペーパー（＃420）によって研磨した。汚
損液には標準汚損液を使用し、2.5KVを初期電圧として
昇圧していったところ、最終電圧Ｖは4.5≦Ｖであり、
試料表面を観察したところ、やや侵食が観られる程度で
あった。In addition, the tracking resistance was evaluated according to ASTM D-2303 (inclined plate method), and the surface of the sample was polished with sandpaper (# 420) of silicone carbide. When the standard fouling liquid was used as the fouling liquid and the voltage was increased with 2.5 KV as the initial voltage, the final voltage V was 4.5 ≦ V,
When the surface of the sample was observed, erosion was slightly observed.
比較例 １ 実施例１のベース混和物に水酸化マグネシウムのみを
配合し、ベース混合物100重量部に対して、水酸化マグ
ネシウムの添加量を50,80…重量部と次第に増加してい
き、実施例１と同等の耐トラッキング性を呈する添加量
を求めた。その添加量は110重量部であり、これを比較
例１とし、この比較例１の自己融着性を評価したとこ
ろ、劣悪であった。Comparative Example 1 Magnesium hydroxide alone was added to the base mixture of Example 1, and the amount of magnesium hydroxide added was gradually increased to 50,80 ... The amount of addition exhibiting tracking resistance equivalent to 1 was determined. The amount added was 110 parts by weight, and this was used as Comparative Example 1, and when the self-fusing property of Comparative Example 1 was evaluated, it was poor.
かかる比較試験より、耐トラッキング剤として、水酸
化マグネシウムと金属炭酸塩との併用により、自己融着
性を保証しつつ耐トラッキング性を向上できることが明
らかである。From such a comparative test, it is clear that the combined use of magnesium hydroxide and a metal carbonate as a tracking resistance agent can improve the tracking resistance while ensuring the self-fusing property.
実施例 ２ 実施例１に対し、炭酸カルシウムに代え炭酸コバルト
を使用して自己融着性並びに耐トラッキング性を評価し
たところ、表１の通りであった。Example 2 As compared with Example 1, the self-bonding property and the tracking resistance were evaluated by using cobalt carbonate instead of calcium carbonate.
実施例 ３〜５ 実施例１に対し表２に示す通り、水酸化マグネシウム
並びに炭酸カルシウムの添加量を増大していき、自己融
着性並びに耐トラッキング性を評価した。添加量の増大
に伴い耐トラッキング性の増大が観られたが、その増大
率は鈍化し、また、実施例５においては、自己融着性の
評価がほぼ良となった。これらの評価結果から、水酸化
マグネシウムの上限値（80重量部）並びに金属炭酸塩の
上限値（25重量部）の裏付けが可能である。Examples 3 to 5 As shown in Table 2 with respect to Example 1, the amounts of magnesium hydroxide and calcium carbonate added were increased, and self-bonding property and tracking resistance were evaluated. Although the tracking resistance was found to increase with an increase in the amount added, the rate of increase slowed down, and in Example 5, the self-fusing property was evaluated to be almost good. From these evaluation results, it is possible to support the upper limit of magnesium hydroxide (80 parts by weight) and the upper limit of metal carbonate (25 parts by weight).
実施例 ６ 実施例１にたいして、水酸化マグネシウムの添加量を
20重量部にし、他は実施例１と同じとし、自己融着性並
びに耐トラッキング性の評価を行ったところ表２の通り
であった。耐トラッキング試験での最終電圧値は充分に
確保できたが、実施例１に較べて試料表面の侵食がやや
深くなった。このことから、水酸化マグネシウムの下限
値（20重量部）を裏付けることができる。Example 6 Compared to Example 1, the addition amount of magnesium hydroxide was changed.
The content was set to 20 parts by weight and otherwise the same as in Example 1, and the self-bonding property and the tracking resistance were evaluated. Although the final voltage value in the tracking resistance test was sufficiently secured, the erosion of the sample surface was slightly deeper than in Example 1. From this, the lower limit value (20 parts by weight) of magnesium hydroxide can be supported.
＜発明の効果＞ 上述した通り、本発明によれば、自己融着テープの耐
トラッキング性を、特定の無機質耐トラッキング剤の添
加によって自己融着性をよく維持しつつ向上できる。従
って、本発明は耐トラッキング自己融着テープの提供に
極めて有用である。<Effects of the Invention> As described above, according to the present invention, the tracking resistance of the self-bonding tape can be improved while maintaining the good self-bonding property by adding a specific inorganic tracking resistant agent. Therefore, the present invention is extremely useful for providing a tracking resistant self-fusing tape.
Claims (1)
イソブチレン30〜70重量部、低分子量ポリイソブチレン
20〜80重量部、低密度ポリエチレン50〜150重量部から
なる混合物100重量部に、20〜80重量部の水酸化マグネ
シウムと25重量部以下の金属炭酸塩を配合せる組成物に
よって成形したことを特徴とする耐トラッキング自己融
着テープ。Claims: 1. Butyl rubber 60 to 150 parts by weight, high molecular weight polyisobutylene 30 to 70 parts by weight, low molecular weight polyisobutylene.
20 to 80 parts by weight, 100 parts by weight of a mixture of low-density polyethylene 50 to 150 parts by weight, 20 to 80 parts by weight of magnesium hydroxide and 25 parts by weight or less of a metal carbonate to be molded by a composition Characteristic tracking resistant self-fusing tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288525A JP2566304B2 (en) | 1988-11-15 | 1988-11-15 | Tracking resistant self-bonding tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288525A JP2566304B2 (en) | 1988-11-15 | 1988-11-15 | Tracking resistant self-bonding tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02135611A JPH02135611A (en) | 1990-05-24 |
| JP2566304B2 true JP2566304B2 (en) | 1996-12-25 |
Family
ID=17731366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63288525A Expired - Lifetime JP2566304B2 (en) | 1988-11-15 | 1988-11-15 | Tracking resistant self-bonding tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2566304B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011016493A1 (en) | 2009-08-07 | 2011-02-10 | 日産自動車株式会社 | Fuel cell and method for manufacturing same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116218418B (en) * | 2023-04-27 | 2023-07-11 | 淄博龙沙高分子材料科技有限公司 | Solid adhesive for cotton coating and preparation method thereof |
-
1988
- 1988-11-15 JP JP63288525A patent/JP2566304B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011016493A1 (en) | 2009-08-07 | 2011-02-10 | 日産自動車株式会社 | Fuel cell and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02135611A (en) | 1990-05-24 |
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