JPH0143387Y2 - - Google Patents
Info
- Publication number
- JPH0143387Y2 JPH0143387Y2 JP20245586U JP20245586U JPH0143387Y2 JP H0143387 Y2 JPH0143387 Y2 JP H0143387Y2 JP 20245586 U JP20245586 U JP 20245586U JP 20245586 U JP20245586 U JP 20245586U JP H0143387 Y2 JPH0143387 Y2 JP H0143387Y2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- tape
- hydrated alumina
- polyethylene film
- magnesium hydroxide
- 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
Links
- 239000004698 Polyethylene Substances 0.000 claims description 39
- 229920000573 polyethylene Polymers 0.000 claims description 39
- -1 polyethylene Polymers 0.000 claims description 38
- 239000000853 adhesive Substances 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 20
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 19
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 19
- 239000000347 magnesium hydroxide Substances 0.000 claims description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 239000012790 adhesive layer Substances 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 12
- 229920005549 butyl rubber Polymers 0.000 claims description 7
- 229920005601 base polymer Polymers 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
- Insulating Bodies (AREA)
- Laminated Bodies (AREA)
Description
〔産業上の利用分野〕
本考案は、電線ケーブルに使用する電気絶縁用
難燃性粘着性ポリエチレンテープに関するもので
ある。
〔従来の技術とその問題点〕
従来、高圧配電線の接続部等に用いられる電気
絶縁用粘着テープとしてよく用いられるのにポリ
エチレンを基材とし、その片面に、ブチルゴム系
粘着剤層を設けた構造の粘着性ポリエチレンテー
プがあり、セパレータのいらない粘着性電気絶縁
性テープとして主流を占めている。しかし、この
型の絶縁性テープは、特に海岸に近い所で用いら
れる場合、塩害によりトラツキングが発生し、絶
縁破壊に至る場合がある。耐トラツキング性を持
つ粘着性テープとして合成ゴムを基材としたもの
が用いられている場合もあるがこのテープはセパ
レータを必要とするため施工時の作業性が悪く、
また合成ゴムを加硫する必要があるため粘着性ポ
リエチレンテープと比べてコストがかかるといつ
た欠点があつた。なお難燃性については何れも考
慮されていなかつた。
〔問題点を解決するための手段〕
本考案は上記の欠点を解消すべく考案されたも
ので、第１図に示すように水和アルミナまたは水
酸化マグネシウムを配合して酸素指数21以上とし
たノンハロゲン難燃性ポリエチレンフイルム１の
片面に、ブチルゴムをベースポリマーとして水和
アルミナまたは水酸化マグネシウムを配合して酸
素指数21以上とした組成物からなる粘着剤層２を
設けたことを特徴とするものである。
水和アルミナまたは水酸化マグネシウムは耐ト
ラツキング性を高めるのに有効なもので、かつノ
ンハロゲン難燃剤としても有効なものである。基
材であるノンハロゲン難燃性ポリエチレンフイル
ム１の酸素指数を21以上としたのは21未満ではテ
ープにした場合自己消火性がなくなるからであ
る。粘着剤層２は粘着性の良いブチルゴムをベー
スポリマーとして用い、これに耐トラツキング
性、難燃性を付与させるために水和アルミナまた
は水酸化マグネシウムを配合したものであり、酸
素指数21以上としたのは21未満では基材の場合と
同様にテープとしての自己消火性がなくなるから
である。
一方、水和アルミナまたは水酸化マグネシウム
を配合したノンハロゲン難燃性ポリエチレンフイ
ルム１は配合しない通常のポリエチレンフイルム
３に比べ粘着性が大きいという特性があり、この
ため、粘着剤層２として粘着力の大きいものを用
いるとテープを巻き戻す時ブロツキングを起こす
場合がある。この場合には第２図に示すようにノ
ンハロゲン難燃性ポリエチレンフイルム１の片面
は通常のポリエチレンフイルム３を貼合した型、
または第３図に示すようにノンハロゲン難燃性ポ
リエチレンフイルム１の片面に離型剤層４を設け
た型のものを用いるとよい。
〔実施例 １〜５〕
第１表に示すように、水和アルミナまたは水酸
化マグネシウムを配合して酸素指数21以上とした
５種のノンハロゲン難燃性ポリエチレンフイルム
の片面に、ブチルゴムをベースポリマーとして水
和アルミナまたは水酸化マグネシウムを配合して
酸素指数21以上とした粘着剤層を設けた粘着性ポ
リエチレンテープ厚さ0.5mm×巾20mm×長さ５ｍ
を作製し、各々の粘着性ポリエチレンテープにつ
いて、巻き戻し性（JIS Ｚ 0237）、難燃性（JIS
Ｃ 3005）、耐トラツキング性（JIS Ｃ 3005）
の特性について試験を行なつた。得られた結果は
第１表に併記したように巻き戻し性、難燃性、耐
トラツキング性ともに良好であつた。
〔比較例 １〜４〕
第１表に示すように水和アルミナまたは水酸化
マグネシウムを配合しない通常のポリエチレンフ
イルムに水和アルミナまたは水酸化マグネシウム
を配合しない酸素指数20の粘着力の小さい粘着剤
層を設けた粘着性ポリエチレンテープ（比較例
１）、同じく粘着力の大きい粘着剤層を設けた粘
着性ポリエチレンテープ（比較例２）、水和アル
ミナまたは水酸化マグネシウムを配合して酸素指
数28としたノンハロゲン難燃性ポリエチレンフイ
ルムの片面に、水和アルミナまたは水酸化マグネ
シウムを配合しない酸素指数20の粘着剤層を設け
た粘着性ポリエチレンテープ（比較例３，４）を
実施例１と同様の寸法に作製し、実施例１と同様
の試験を行なつた。得られた結果は第１表に併記
したように巻き戻し性は良好であつたが難燃性、
耐トラツキング性は不良であつた。
[Industrial Application Field] The present invention relates to a flame-retardant adhesive polyethylene tape for electrical insulation used for electric wires and cables. [Conventional technology and its problems] Traditionally, it has been commonly used as an electrically insulating adhesive tape for connections of high-voltage distribution lines, etc., but it uses polyethylene as a base material and has a butyl rubber adhesive layer on one side. There is an adhesive polyethylene tape with a structure that occupies the mainstream as an adhesive electrical insulating tape that does not require a separator. However, especially when this type of insulating tape is used near the coast, tracking may occur due to salt damage, leading to dielectric breakdown. In some cases, synthetic rubber-based adhesive tapes with tracking resistance are used, but these tapes require separators, making them difficult to work with during installation.
Another drawback was that it was more expensive than adhesive polyethylene tape because it required vulcanization of the synthetic rubber. Incidentally, no consideration was given to flame retardancy. [Means for solving the problems] The present invention was devised to eliminate the above-mentioned drawbacks, and as shown in Figure 1, hydrated alumina or magnesium hydroxide is blended to give an oxygen index of 21 or more. It is characterized by providing on one side of a non-halogen flame retardant polyethylene film 1 an adhesive layer 2 made of a composition made of butyl rubber as a base polymer and blended with hydrated alumina or magnesium hydroxide to give an oxygen index of 21 or more. It is. Hydrated alumina or magnesium hydroxide is effective in increasing tracking resistance and is also effective as a non-halogen flame retardant. The reason why the oxygen index of the non-halogen flame-retardant polyethylene film 1, which is the base material, is set to be 21 or more is because if it is less than 21, self-extinguishing properties will be lost when it is made into a tape. Adhesive layer 2 uses butyl rubber with good adhesiveness as a base polymer, and contains hydrated alumina or magnesium hydroxide to impart tracking resistance and flame retardancy, and has an oxygen index of 21 or more. This is because if it is less than 21, the tape loses its self-extinguishing properties, as in the case of the base material. On the other hand, the non-halogen flame-retardant polyethylene film 1 containing hydrated alumina or magnesium hydroxide has a characteristic of greater adhesiveness than the ordinary polyethylene film 3 that does not contain hydrated alumina or magnesium hydroxide. If a tape is used, blocking may occur when rewinding the tape. In this case, as shown in FIG. 2, one side of the non-halogen flame-retardant polyethylene film 1 is pasted with a regular polyethylene film 3;
Alternatively, as shown in FIG. 3, a type in which a halogen-free flame-retardant polyethylene film 1 is provided with a release agent layer 4 on one side may be used. [Examples 1 to 5] As shown in Table 1, butyl rubber was used as a base polymer on one side of five types of non-halogen flame-retardant polyethylene films containing hydrated alumina or magnesium hydroxide and having an oxygen index of 21 or higher. Adhesive polyethylene tape with an adhesive layer containing hydrated alumina or magnesium hydroxide with an oxygen index of 21 or higher Thickness 0.5 mm x Width 20 mm x Length 5 m
Each adhesive polyethylene tape was tested for rewindability (JIS Z 0237) and flame retardancy (JIS Z 0237).
C 3005), tracking resistance (JIS C 3005)
Tests were conducted on the characteristics of As shown in Table 1, the obtained results were good in terms of unwinding properties, flame retardance, and tracking resistance. [Comparative Examples 1 to 4] As shown in Table 1, a low adhesive layer with an oxygen index of 20 that does not contain hydrated alumina or magnesium hydroxide on a normal polyethylene film that does not contain hydrated alumina or magnesium hydroxide. Adhesive polyethylene tape with a pressure-sensitive adhesive layer (Comparative Example 1), adhesive polyethylene tape with a highly adhesive layer (Comparative Example 2), and an oxygen index of 28 by blending hydrated alumina or magnesium hydroxide. Adhesive polyethylene tape (Comparative Examples 3 and 4) in which an adhesive layer with an oxygen index of 20 that does not contain hydrated alumina or magnesium hydroxide is provided on one side of a non-halogen flame-retardant polyethylene film has the same dimensions as in Example 1. It was prepared and tested in the same manner as in Example 1. As shown in Table 1, the obtained results showed that the unwinding property was good, but the flame retardancy and
Tracking resistance was poor.
【表】【table】
第２表に示すように水和アルミナまたは水酸化
マグネシウムを配合して酸素指数28としたノンハ
ロゲン難燃性ポリエチレンフイルムを主層とし、
水和アルミナまたは水酸化マグネシウムを配合し
ない通常のポリエチレンフイルムを副層としたも
のを基材としその主層側に実施例１〜５と比べて
粘着力の強い粘着剤層を設けた粘着性ポリエチレ
ンテープを実施例１と同様の寸法に作製し、実施
例１と同様の試験を行なつた。
〔実施例 ８〕
水酸化マグネシウムを配合して酸素指数28とし
たノンハロゲン難燃性ポリエチレンフイルムの片
面に、ブチルゴムをベースポリマーとして水和ア
ルミナを配合して酸素指数23とした組成物からな
る粘着剤層を設け、該粘着剤層を設けた面と反対
の面に離型剤層を設けた粘着性ポリエチレンテー
プを実施例１と同様の寸法に作製し、実施例１と
同様の試験を行なつた。得られた結果は第２表に
併記したように巻き戻し性、難燃性、耐トラツキ
ング性ともに良好であつた。
〔比較例 ５〕
第２表に示すように水酸化マグネシウムを配合
して酸素指数28としたノンハロゲン難燃性ポリエ
チレンフイルムの片面に、ブチルゴムをベースポ
リマーとして水和アルミナを配合して酸素指数23
とした組成物からなる粘着剤層を設けた粘着性ポ
リエチレンテープを実施例１と同様の寸法に作製
し、実施例１と同様の試験を行なつた。得られた
結果は第２表に併記したように難燃性、耐トラツ
キング性については良好であつたが巻き戻し性が
不良であつた。
As shown in Table 2, the main layer is a non-halogen flame-retardant polyethylene film containing hydrated alumina or magnesium hydroxide and having an oxygen index of 28.
Adhesive polyethylene made of a base material with a sublayer of normal polyethylene film that does not contain hydrated alumina or magnesium hydroxide, and an adhesive layer with stronger adhesive strength than Examples 1 to 5 on the main layer side. A tape was made to have the same dimensions as in Example 1, and the same tests as in Example 1 were conducted. [Example 8] Adhesive consisting of a composition containing hydrated alumina using butyl rubber as a base polymer on one side of a non-halogen flame-retardant polyethylene film having an oxygen index of 28 by blending magnesium hydroxide. An adhesive polyethylene tape having a layer and a release agent layer on the opposite side to the adhesive layer was prepared in the same dimensions as in Example 1, and the same test as in Example 1 was conducted. Ta. As shown in Table 2, the obtained results were good in terms of unwinding properties, flame retardance, and tracking resistance. [Comparative Example 5] As shown in Table 2, one side of a non-halogen flame-retardant polyethylene film with an oxygen index of 28 by blending magnesium hydroxide with hydrated alumina using butyl rubber as a base polymer was blended with an oxygen index of 23.
An adhesive polyethylene tape provided with an adhesive layer made of the composition described above was prepared in the same dimensions as in Example 1, and the same tests as in Example 1 were conducted. As shown in Table 2, the obtained results were good in terms of flame retardancy and tracking resistance, but poor unwinding properties.
【表】【table】
以上説明したように本考案の粘着性ポリエチレ
ンテープは基材と粘着剤の両方に水和アルミナま
たは水酸化マグネシウムを配合し、ともに酸素指
数が21以上となるようにしたため巻き戻し性、難
燃性、耐トラツキング性に優れたものとなつた。
As explained above, the adhesive polyethylene tape of the present invention has hydrated alumina or magnesium hydroxide in both the base material and the adhesive, and has an oxygen index of 21 or more, so it has excellent unwinding properties and flame retardancy. , it has excellent tracking resistance.
第１図は本考案の粘着性ポリエチレンテープの
断面図、第２図は主層、副層の二層からなる基材
を用いた本考案の粘着性ポリエチレンテープの断
面図、第３図は粘着剤層と反対側の面に離型剤層
を設けた基材を用いた本考案の粘着性ポリエチレ
ンテープの断面図である。
１……ノンハロゲン難燃性ポリエチレンフイル
ム、２……粘着剤層、３……ポリエチレンフイル
ム、４……離型剤層。
Figure 1 is a cross-sectional view of the adhesive polyethylene tape of the present invention, Figure 2 is a cross-sectional view of the adhesive polyethylene tape of the present invention using a base material consisting of two layers, a main layer and a sublayer, and Figure 3 is an adhesive FIG. 2 is a cross-sectional view of an adhesive polyethylene tape of the present invention using a base material having a release agent layer on the opposite side from the agent layer. 1...Non-halogen flame retardant polyethylene film, 2...Adhesive layer, 3...Polyethylene film, 4...Release agent layer.
Claims (1)
合して酸素指数21以上としたノンハロゲン難燃
性ポリエチレンフイルム１の片面に、ブチルゴ
ムをベースポリマーとして水和アルミナまたは
水酸化マグネシウムを配合して酸素指数21以上
とした組成物からなる粘着剤層２を設けたこと
を特徴とする粘着性ポリエチレンテープ。 (2) ノンハロゲン難燃性ポリエチレンフイルムが
その粘着剤層２を設けた面と反対の面に水和ア
ルミナまたは水酸化マグネシウムを配合しない
ポリエチレンフイルム３を貼合したものである
ことを特徴とする実用新案登録請求の範囲第１
項記載の粘着性ポリエチレンテープ。 (3) ノンハロゲン難燃性ポリエチレンフイルムが
その粘着剤層２を設けた面と反対の面に離型剤
層４を設けたものであることを特徴とする実用
新案登録請求の範囲第１項記載の粘着性ポリエ
チレンテープ。[Claims for Utility Model Registration] (1) Hydrated alumina or hydroxide using butyl rubber as a base polymer on one side of a non-halogen flame-retardant polyethylene film 1 with an oxygen index of 21 or higher by blending hydrated alumina or magnesium hydroxide. An adhesive polyethylene tape comprising an adhesive layer 2 made of a composition containing magnesium and having an oxygen index of 21 or more. (2) Practical use characterized in that the non-halogen flame-retardant polyethylene film is laminated with a polyethylene film 3 containing no hydrated alumina or magnesium hydroxide on the opposite side to the side on which the adhesive layer 2 is provided. Scope of patent registration request No. 1
Adhesive polyethylene tape as described in section. (3) Utility model registration claim 1, characterized in that the non-halogen flame-retardant polyethylene film is provided with a release agent layer 4 on the side opposite to the side on which the adhesive layer 2 is provided. adhesive polyethylene tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20245586U JPH0143387Y2 (en) | 1986-12-25 | 1986-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20245586U JPH0143387Y2 (en) | 1986-12-25 | 1986-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63106741U JPS63106741U (en) | 1988-07-09 |
| JPH0143387Y2 true JPH0143387Y2 (en) | 1989-12-15 |
Family
ID=31166852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20245586U Expired JPH0143387Y2 (en) | 1986-12-25 | 1986-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0143387Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016194094A1 (en) * | 2015-05-29 | 2016-12-08 | リンテック株式会社 | Adhesive sheet |
-
1986
- 1986-12-25 JP JP20245586U patent/JPH0143387Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63106741U (en) | 1988-07-09 |
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