JP2520902B2 - Insulated wire - Google Patents
Insulated wireInfo
- Publication number
- JP2520902B2 JP2520902B2 JP62092888A JP9288887A JP2520902B2 JP 2520902 B2 JP2520902 B2 JP 2520902B2 JP 62092888 A JP62092888 A JP 62092888A JP 9288887 A JP9288887 A JP 9288887A JP 2520902 B2 JP2520902 B2 JP 2520902B2
- Authority
- JP
- Japan
- Prior art keywords
- aromatic polyester
- polyester resin
- resin composition
- abrasion resistance
- wire
- 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
- 125000003118 aryl group Chemical group 0.000 claims description 24
- 229920001225 polyester resin Polymers 0.000 claims description 22
- 239000004645 polyester resin Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 14
- 239000011247 coating layer Substances 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、絶縁電線、詳しくは、芳香族ポリエステル
樹脂組成物を導体上に被覆してなる絶縁電線に関するも
のである。TECHNICAL FIELD The present invention relates to an insulated electric wire, and more particularly to an insulated electric wire obtained by coating a conductor with an aromatic polyester resin composition.
［従来の技術］ VTR、OA機器および通信機器、自動車、航空機などに
使用されている電線において、機器の軽量化、コンパク
ト化に伴い電線強度は保持したままでより径の細い電線
が要求されるようになった。しかも火災等に対するより
厳しい安全性の要求から被覆層についても高い難燃性が
求められており、例えば、UL（Under Writers Laborato
ries）規格の垂直燃焼テスト（VW-1）に合格する必要が
ある。また耐摩耗性に於いては自動車用の電線に対して
はJOSO規格 D608に定められている耐摩耗試験などに合
格する必要がある。[Prior Art] Electric wires used in VTRs, OA equipments and communication equipments, automobiles, aircrafts, etc. are required to have thinner diameters while maintaining the strength of the electric wires due to weight reduction and downsizing of the equipments. It became so. Moreover, due to stricter safety requirements against fires, the coating layer is also required to have high flame retardancy. For example, UL (Under Writers Laborato
ries) It is necessary to pass the standard vertical burning test (VW-1). In terms of wear resistance, it is necessary for electric wires for automobiles to pass the wear resistance test specified in JOSO Standard D608.
このため、これらの電線の細線化には、耐摩耗性や抗
張力等の物理的性質に優れ、しかも高い耐熱性と難熱性
を有する材料を被覆層に使用することが必要になる。Therefore, in order to thin these electric wires, it is necessary to use a material having excellent physical properties such as wear resistance and tensile strength, and having high heat resistance and heat resistance in the coating layer.
このような材料としては一般に、エンジニアリングプ
ラスチックと呼ばれている樹脂があり、その中でも芳香
族ポリエステルがこれらの特性に優れている。As such a material, there is generally a resin called an engineering plastic, and among them, an aromatic polyester is excellent in these characteristics.
したがって、芳香族ポリエステル樹脂を被覆層とする
絶縁電線が検討されている。Therefore, an insulated wire having an aromatic polyester resin as a coating layer has been studied.
［発明が解決しようとする問題点］ ところが、一般に知られている芳香族ポリエステル樹
脂は、耐熱性や耐摩耗性に優れているものの、押出加工
性が悪く、変性等により押出加工性を良くした芳香族ポ
リエステル樹脂は耐摩耗性に劣るという問題があった。
したがって、今までは、耐摩耗性と耐熱性に優れた芳香
族ポリエステル樹脂を被覆層とする絶縁電線を作ること
ははなはだ困難であった。[Problems to be Solved by the Invention] However, although generally known aromatic polyester resins have excellent heat resistance and abrasion resistance, they have poor extrusion processability and have improved extrusion processability due to modification and the like. Aromatic polyester resins have a problem of poor abrasion resistance.
Therefore, until now, it was extremely difficult to produce an insulated electric wire having a coating layer of an aromatic polyester resin having excellent wear resistance and heat resistance.
上記に鑑み、本発明は、このような問題点を解決し、
耐摩耗性と耐熱性に優れた芳香族ポリエステル絶縁電線
を提供するものである。In view of the above, the present invention solves such problems,
The present invention provides an aromatic polyester insulated wire having excellent wear resistance and heat resistance.
［問題点を解決するための手段］ 本発明は、下記の構造式で示される基本骨格を有し、
メルトインデックス（ASTM-D1238準拠；温度300℃、荷
重2.160Kg）が2g/10min以上50g/10min以下の範囲にある
芳香族ポリエステル樹脂組成物を導体上に被覆してなる
絶縁電線を要旨とするものである。[Means for Solving Problems] The present invention has a basic skeleton represented by the following structural formula,
The gist of an insulated electric wire is obtained by coating a conductor with an aromatic polyester resin composition having a melt index (ASTM-D1238 compliant; temperature 300 ° C, load 2.160Kg) in the range of 2g / 10min or more and 50g / 10min or less. Is.
本発明において、芳香族ポリエステル樹脂を用いたの
は、芳香族ポリエステル樹脂が耐摩耗性や抗張力等の機
械特性、耐熱性、難熱性などに優れた樹脂であるためで
ある。 In the present invention, the aromatic polyester resin is used because the aromatic polyester resin is a resin excellent in mechanical properties such as abrasion resistance and tensile strength, heat resistance, and heat resistance.
しかし一般には、高い機械強度や耐熱性を有する芳香
族ポリエステル樹脂は押出加工性が非常に悪く、導体上
に均一な絶縁層を形成するのは困難であった。また、変
性等により押出加工性を改良したものは耐摩耗性が低い
のが普通であった。ところが、特定の範囲内のメルトイ
ンデックスを有する芳香族ポリエステル樹脂組成物を使
用することにより、耐熱性と耐摩耗性に優れた芳香族ポ
リエステル樹脂電線を作成することに成功した。However, in general, an aromatic polyester resin having high mechanical strength and heat resistance has very poor extrusion processability, and it has been difficult to form a uniform insulating layer on a conductor. Further, those having improved extrudability by modification or the like usually have low wear resistance. However, by using an aromatic polyester resin composition having a melt index within a specific range, it has succeeded in producing an aromatic polyester resin electric wire having excellent heat resistance and abrasion resistance.
この芳香族ポリエステル樹脂組成物のメルトインデッ
クス（ASTM-D1238準拠；温度300℃、荷重2.160Kg）は、
2g/10min以上50g/10min以下の値を示すものである。The melt index (ASTM-D1238 compliant; temperature 300 ° C., load 2.160 Kg) of this aromatic polyester resin composition is
It shows a value of 2 g / 10 min or more and 50 g / 10 min or less.
本発明の芳香族ポリエステル樹脂電線は、均一な絶縁
層を有するもので、更に、JASO D608の耐摩耗試験に合
格するものであった。The aromatic polyester resin electric wire of the present invention had a uniform insulating layer and passed the abrasion resistance test of JASO D608.
芳香族ポリエステル樹脂組成物のメルトインデックス
がg/10min未満では、溶融粘度が高過ぎてぎて、導体上
に均一な被覆層を形成できないからであり、50g/10min
を越えると絶縁電線の耐摩耗性は大幅に低下し、JASO D
608の耐摩耗試験に不合格となるからである。If the melt index of the aromatic polyester resin composition is less than g / 10 min, it is because the melt viscosity is too high and a uniform coating layer cannot be formed on the conductor, and thus 50 g / 10 min.
If it exceeds, the abrasion resistance of the insulated wire will be significantly reduced, and JASO D
This is because it fails the abrasion resistance test of 608.
［作用］ 限られたメルトインデックスを有する芳香族ポリエス
テル樹脂組成物を使用することにより、導体上に均一な
被覆層を形成することが出来、得られる芳香族ポリエス
テル樹脂電線は耐熱性と耐摩耗性に優れたものである。[Function] By using an aromatic polyester resin composition having a limited melt index, a uniform coating layer can be formed on a conductor, and the resulting aromatic polyester resin wire has heat resistance and abrasion resistance. It is an excellent one.
［実施例］ 本発明を実施例に基づき説明する。[Examples] The present invention will be described based on Examples.
実施例 導体外径0.813mmの銅線上に、メルトインデックスが
4.4g/10minの芳香族ポリエステル樹脂組成物を押出被覆
し、被覆層厚さ0.25mm、外径1.3mmの絶縁電線を作成し
た。Example The melt index is on a copper wire with a conductor outer diameter of 0.813 mm.
A 4.4 g / 10 min aromatic polyester resin composition was extrusion-coated to prepare an insulated wire having a coating layer thickness of 0.25 mm and an outer diameter of 1.3 mm.
この電線の耐摩耗性は第１表に示したように、748mm
であり、JASO D608の耐摩耗試験に合格した。The abrasion resistance of this wire is 748 mm as shown in Table 1.
And passed the abrasion resistance test of JASO D608.
比較例−１ 導体外径0.813mmの銅線上に、メルトインデックスが
1.9g/10minの芳香族ポリエステル樹脂組成物を押出した
が均一な被覆層が形成されなかった。また作成した電線
の中から極少量得られた、被覆層厚さ0.25mm、外径1.3m
mの絶縁電線の耐摩耗性を測定したところ、第１表に示
したように、652mmであり、実施例に比べ低いものであ
った。耐摩耗試験に合格した。Comparative Example-1 A copper wire with an outer diameter of 0.813 mm has a melt index of
1.9 g / 10 min of the aromatic polyester resin composition was extruded, but a uniform coating layer was not formed. Also, a very small amount was obtained from the created electric wire, covering layer thickness 0.25mm, outer diameter 1.3m
When the abrasion resistance of the insulated wire of m was measured, it was 652 mm as shown in Table 1, which was lower than that of the example. Passed the abrasion resistance test.
比較例−２ 導体外径0.813mmの銅線上に、メルトインデックスが1
00g/10minの芳香族ポリエステル樹脂組成物を押出被覆
し、被覆層厚さ0.25mm、外径1.3mmの絶縁電線を作成し
た。この絶縁電線の耐摩耗性は、第１表に示したよう
に、250mmと非常に低く、JASO D608の耐摩耗試験に不合
格となった。Comparative Example-2 The melt index was 1 on a copper wire with a conductor outer diameter of 0.813 mm.
An aromatic polyester resin composition of 00 g / 10 min was extrusion-coated to prepare an insulated electric wire having a coating layer thickness of 0.25 mm and an outer diameter of 1.3 mm. As shown in Table 1, the abrasion resistance of this insulated wire was as very low as 250 mm, and it failed the abrasion resistance test of JASO D608.
［発明の効果］ 本発明によれば、限られたメルトインデックスを有す
る芳香族ポリエステル樹脂組成物を使用することによ
り、導体上に均一な被覆層を形成することが出来、得ら
れる芳香族ポリエステル樹脂電線は耐熱性と耐摩耗性に
優れたものである。 EFFECTS OF THE INVENTION According to the present invention, by using an aromatic polyester resin composition having a limited melt index, a uniform coating layer can be formed on a conductor, and the obtained aromatic polyester resin Electric wires have excellent heat resistance and wear resistance.
Claims (1)
メルトインデックス（ASTM-D1238準拠；温度300℃、荷
重2.160Kg）が2g/10min以上50g/10min以下の範囲にある
芳香族ポリエステル樹脂組成物を導体上に被覆してなる
絶縁電線。 1. Having a basic skeleton represented by the following structural formula,
An insulated electric wire obtained by coating a conductor with an aromatic polyester resin composition having a melt index (ASTM-D1238 compliant; temperature 300 ° C, load 2.160Kg) of 2g / 10min or more and 50g / 10min or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62092888A JP2520902B2 (en) | 1987-04-14 | 1987-04-14 | Insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62092888A JP2520902B2 (en) | 1987-04-14 | 1987-04-14 | Insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63257113A JPS63257113A (en) | 1988-10-25 |
| JP2520902B2 true JP2520902B2 (en) | 1996-07-31 |
Family
ID=14066993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62092888A Expired - Lifetime JP2520902B2 (en) | 1987-04-14 | 1987-04-14 | Insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520902B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2566252B2 (en) * | 1987-09-25 | 1996-12-25 | 株式会社フジクラ | Flame-retardant wire, cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5149071B2 (en) * | 1973-10-19 | 1976-12-24 |
-
1987
- 1987-04-14 JP JP62092888A patent/JP2520902B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63257113A (en) | 1988-10-25 |
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