JP5712076B2 - Sheathed wire - Google Patents
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- JP5712076B2 JP5712076B2 JP2011161836A JP2011161836A JP5712076B2 JP 5712076 B2 JP5712076 B2 JP 5712076B2 JP 2011161836 A JP2011161836 A JP 2011161836A JP 2011161836 A JP2011161836 A JP 2011161836A JP 5712076 B2 JP5712076 B2 JP 5712076B2
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- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 16
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 16
- 229920005672 polyolefin resin Polymers 0.000 claims description 15
- 239000011342 resin composition Substances 0.000 claims description 15
- -1 alkali metal titanate Chemical class 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims description 7
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 10
- 239000003063 flame retardant Substances 0.000 description 10
- 239000011247 coating layer Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 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 description 6
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- GROMGGTZECPEKN-UHFFFAOYSA-N sodium metatitanate Chemical compound [Na+].[Na+].[O-][Ti](=O)O[Ti](=O)O[Ti]([O-])=O GROMGGTZECPEKN-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Description
本発明は、被覆電線に関し、より詳細には、被覆層の耐摩耗性及び薄肉化の両立が可能で、かつＩＳＯ６７２２に規定される難燃性及び十分な柔軟性を有する被覆電線に関する。 The present invention relates to a covered electric wire, and more particularly, to a covered electric wire that can achieve both wear resistance and thinning of a covering layer and has flame retardancy and sufficient flexibility as defined in ISO6722.
従来、自動車部品などに用いられる電線は、導体の周囲にベース樹脂として塩化ビニル樹脂を用いて形成された被覆層により被覆されたものが広く用いられてきた。しかし、塩化ビニル樹脂はハロゲンを含んでいる為、車両火災時や、焼却時に有害なハロゲン系ガスが大気中に放出される為、環境汚染の問題となっていた。
その為、地球環境保護の観点からノンハロゲン系樹脂への代替が進められている。しかし、代替物としてポリオレフィン系樹脂は燃えやすく、またノンハロゲン系難燃剤はハロゲン系難燃剤と比較して難燃性に劣る為、難燃性を付与するためには難燃剤を多量添加する必要があった。その為、従来の絶縁電線では耐摩耗性などの機械特性が著しく低下するという問題があった。
Conventionally, electric wires used for automobile parts and the like have been widely used in which conductors are covered with a coating layer formed using vinyl chloride resin as a base resin around the conductor. However, since the vinyl chloride resin contains halogen, harmful halogen-based gas is released into the atmosphere at the time of vehicle fire or incineration, which has been a problem of environmental pollution.
Therefore, replacement with non-halogen resins is being promoted from the viewpoint of protecting the global environment. However, as an alternative, polyolefin resins are flammable, and non-halogen flame retardants are inferior to flame retardants in comparison with halogen flame retardants, so it is necessary to add a large amount of flame retardants to impart flame retardancy. there were. Therefore, the conventional insulated wire has a problem that mechanical properties such as wear resistance are remarkably deteriorated.
そこで上記問題を解決する為の技術として、難燃樹脂を用いた樹脂配合組成とすることで、難燃剤を添加しなくても十分な難燃性を有し、耐摩耗性及び、耐寒性に優れる絶縁電線が提案されている（例えば、特許文献１参照）。この絶縁電線は、(Ａ）ポリフェニレンエーテル樹脂およびポリフェニレンスルフィド樹脂から選択された１種または２種以上の樹脂と、（Ｂ）ガラス転移温度が−２０℃以下の樹脂とを含有し、（Ａ）成分１００質量部に対して、（Ｂ）成分が０．１〜６０質量部の範囲内にある樹脂組成物を導体の外周に被覆してなることを特徴としている。
しかしながら、特許文献１に記載の絶縁電線は、柔軟樹脂を含んでおり、ＩＳ０６７２２に規定される電線絶縁体厚さよりも薄肉化した電線を用いてスクレープ摩耗規格で測定した場合、十分な耐摩耗性は有していない。
Therefore, as a technique for solving the above problems, by having a resin composition using a flame retardant resin, it has sufficient flame resistance without adding a flame retardant, and is resistant to wear and cold. An excellent insulated wire has been proposed (see, for example, Patent Document 1). This insulated wire contains (A) one or more resins selected from polyphenylene ether resins and polyphenylene sulfide resins, and (B) a resin having a glass transition temperature of −20 ° C. or lower. It is characterized in that the outer periphery of the conductor is coated with a resin composition in which the component (B) is in the range of 0.1 to 60 parts by mass with respect to 100 parts by mass of the component.
However, the insulated wire described in Patent Document 1 contains a flexible resin, and has sufficient wear resistance when measured with a scrape wear standard using a wire that is thinner than the thickness of the wire insulator defined in IS06722. Does not have.
その他にも、電線の被覆層を形成する樹脂にポリフェニレンスルフィド樹脂を用いて、耐摩耗性等を向上した電線が知られている（例えば、特許文献２及び３参照）。
また、本出願人は、難燃性と耐摩耗性とを両立させるため、オレフィン系樹脂に金属水和物を混合してなる難燃オレフィン系樹脂組成物に、ポリプロピレンとチタン酸カリウムとを含有する組成物を導体に被覆してなるケーブルを提案した（特許文献４参照）。
しかし、いずれの場合も、被覆層を薄肉化した場合においては、耐摩耗性が低下する傾向にあり、それらを両立しつつ、難燃性や柔軟性を満足させることは困難であった。
In addition, there is known an electric wire that uses polyphenylene sulfide resin as a resin for forming a coating layer of the electric wire and has improved wear resistance and the like (for example, see Patent Documents 2 and 3).
Further, in order to achieve both flame retardancy and wear resistance, the present applicant contains polypropylene and potassium titanate in a flame retardant olefin resin composition obtained by mixing a metal hydrate with an olefin resin. A cable obtained by coating a conductor with a composition to be formed has been proposed (see Patent Document 4).
However, in any case, when the coating layer is thinned, the wear resistance tends to be reduced, and it has been difficult to satisfy the flame retardancy and flexibility while satisfying them.
本発明は、上記従来の技術に鑑みなされたものであり、被覆層を薄肉化した場合においても耐摩耗性を向上させることができ、かつ難燃性や柔軟性などについて従来と同等の電線特性を満足させ得る被覆電線を提供することを目的とする。 The present invention has been made in view of the above-described conventional technology, and can improve the wear resistance even when the coating layer is thinned, and has the same electric wire characteristics as the conventional one in terms of flame retardancy and flexibility. An object of the present invention is to provide a covered electric wire that can satisfy the requirements.
上記課題を解決する本発明は以下の通りである。
（１）（Ａ）ポリフェニレンスルフィド（ＰＰＳ）を６０質量部以上８０質量部以下、（Ｂ）ポリオレフィン系樹脂（ＰＯ）を２０質量部以上４０質量部以下、及び前記（Ａ）及び（Ｂ）の樹脂合計１００質量部に対して、（Ｃ）繊維状のチタン酸アルカリ金属塩を１０質量部以上２５質量部以下含む樹脂組成物を導体に被覆してなることを特徴とする被覆電線。
The present invention for solving the above problems is as follows.
(1) (A) 60 to 80 parts by mass of polyphenylene sulfide (PPS), (B) 20 to 40 parts by mass of a polyolefin-based resin (PO), and (A) and (B) A covered electric wire comprising a conductor coated with a resin composition containing (C) 10 to 25 parts by mass of a fibrous alkali metal titanate with respect to 100 parts by mass of the total resin.
本発明によれば、被覆層を薄肉化した場合においても耐摩耗性を向上させることができ、かつ難燃性や柔軟性などについて従来と同等の電線特性を満足させ得る被覆電線を提供することができる。 According to the present invention, it is possible to provide a coated electric wire that can improve wear resistance even when the coating layer is thinned and can satisfy the same electric wire characteristics as those of the conventional ones in terms of flame retardancy and flexibility. Can do.
本発明の被覆電線は、（Ａ）ポリフェニレンスルフィド（以下、「ＰＰＳ」と称する場合がある。）を６０質量部以上８０質量部以下、（Ｂ）ポリオレフィン系樹脂（以下、「ＰＯ」と称する場合がある。）を２０質量部以上４０質量部以下、及び前記（Ａ）及び（Ｂ）の樹脂合計１００質量部に対して、（Ｃ）チタン酸アルカリ金属塩を１０質量部以上２５質量部以下含む樹脂組成物を導体に被覆してなることを特徴としている。 The coated electric wire of the present invention includes (A) polyphenylene sulfide (hereinafter sometimes referred to as “PPS”) in an amount of 60 to 80 parts by mass, and (B) a polyolefin resin (hereinafter referred to as “PO”). 20 parts by mass or more and 40 parts by mass or less, and (C) alkali metal titanate is 10 parts by mass or more and 25 parts by mass or less with respect to 100 parts by mass of the total of the resins (A) and (B). It is characterized by coating a conductor with a resin composition containing it.
本発明の被覆電線は、ＰＰＳとＰＯのアロイにチタン酸カリウムを添加した樹脂組成物を用いて被覆層を形成することで耐摩耗性を向上させ、通常であれば被覆層を薄肉化する際に低下する耐摩耗特性についても十分な性能を保持することができる。つまり、被覆層の薄肉化と耐摩耗性を両立することができる。また、それとともに、ＩＳ０６７２２に準拠する難燃性を満足し、ワイヤーハーネスの配作性を悪化させない為に柔軟性等についても従来の電線特性を満足させることができる。 The coated electric wire of the present invention improves the wear resistance by forming a coating layer using a resin composition in which potassium titanate is added to an alloy of PPS and PO. Sufficient performance can be maintained even with respect to the wear resistance characteristics that are significantly reduced. That is, both the thinning of the coating layer and the wear resistance can be achieved. At the same time, the flame retardancy conforming to IS06722 is satisfied, and the conventional electric wire characteristics can be satisfied with respect to flexibility and the like in order not to deteriorate the distribution property of the wire harness.
［樹脂組成物］
本発明に係る樹脂組成物は、（Ａ）ポリフェニレンスルフィド（ＰＰＳ）を６０質量部以上８０質量部以下、（Ｂ）ポリオレフィン系樹脂（ＰＯ）を２０質量部以上４０質量部以下、及び前記（Ａ）及び（Ｂ）の樹脂合計１００質量部に対して、（Ｃ）チタン酸アルカリ金属塩を１０質量部以上２５質量部以下含む。
以下、当該樹脂組成物の各成分について説明する。
[Resin composition]
The resin composition according to the present invention includes (A) 60 to 80 parts by mass of polyphenylene sulfide (PPS), (B) 20 to 40 parts by mass of polyolefin-based resin (PO), and (A And (B) 10 parts by mass or more and 25 parts by mass or less of alkali metal titanate with respect to 100 parts by mass of the total resin of (B).
Hereinafter, each component of the resin composition will be described.
（ＰＰＳ）
本発明において、ＰＰＳは構造上の制限は特になく、配合量は６０質量部以上８０質量部以下とする。配合量が６０質量部未満であると耐摩耗性が不十分となり、８０質量部より多いと柔軟性が悪化する。
(PPS)
In the present invention, PPS is not particularly limited in structure, and the blending amount is 60 parts by mass or more and 80 parts by mass or less. When the blending amount is less than 60 parts by mass, the abrasion resistance becomes insufficient, and when it exceeds 80 parts by mass, the flexibility is deteriorated.
（ＰＯ）
本発明で用いるポリオレフィン系樹脂としては、例えば、エチレン、プロピレン、１−ブテン、１−ペンテン、１−ヘキセン、３−メチル−1−ブテン、４−メチル−１−ペンテン、１−オクテン、１−デセン、１−ドデセン、１−テトラデセン、１−ヘキサデセン、１−オクタデセン、１−エイコセン、ビニルアセテート等のエチレン（共）重合体、α−オレフィン（共）重合体を示すことができる。これらは、１種または２種以上併用することができる。好ましくは、ポリエチレン、ポリプロピレンおよびエチレン−ビニル酢酸共重合体である。
本発明で用いるＰＯは、２０質量部以上４０質量部以下となるように配合する。配合量が２０質量部未満であると柔軟性が不十分となり、４０質量部より多いと耐摩耗性、柔軟性が悪化する。
(PO)
Examples of the polyolefin resin used in the present invention include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 3-methyl-1-butene, 4-methyl-1-pentene, 1-octene, 1-octene, Examples thereof include ethylene (co) polymers such as decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicocene and vinyl acetate, and α-olefin (co) polymers. These can be used alone or in combination of two or more. Preferred are polyethylene, polypropylene, and ethylene-vinyl acetic acid copolymer.
The PO used in the present invention is blended so as to be 20 parts by mass or more and 40 parts by mass or less. When the blending amount is less than 20 parts by mass, the flexibility becomes insufficient, and when it exceeds 40 parts by mass, the wear resistance and flexibility are deteriorated.
（チタン酸アルカリ金属塩）
本発明において用いるチタン酸アルカリ金属塩としては、チタン酸カリウム、チタン酸ナトリウムが挙げられ、中でも、入手が容易であることから、チタン酸カリウムが好ましい。また、中でも、繊維状（ウィスカー状）のものが好ましく、その場合、繊維径は１μｍ以下、繊維長は１〜３０ｍｍであることが好ましい。
(Alkali metal titanate)
Examples of the alkali metal titanate used in the present invention include potassium titanate and sodium titanate. Among them, potassium titanate is preferable because it is easily available. Of these, a fibrous (whisker-shaped) material is preferable. In that case, the fiber diameter is preferably 1 μm or less and the fiber length is preferably 1 to 30 mm.
本発明において、チタン酸アルカリ金属塩は１０質量部以上、２５質量部以下で配合する。１０質量部未満では十分な摩耗性を得ることが出来ず、２５質量部より多く配合すると難燃性及び柔軟性が悪化する。 In the present invention, the alkali metal titanate is blended in an amount of 10 to 25 parts by mass. If it is less than 10 parts by mass, sufficient wear resistance cannot be obtained, and if it is added more than 25 parts by mass, flame retardancy and flexibility are deteriorated.
（他の成分）
本発明に係る樹脂組成物は、本発明の効果を妨げない範囲で、難燃剤、難燃助剤、酸化防止剤、金属不活性剤、その他老化防止剤、滑剤、充填剤及び補強材、ＵＶ吸収剤、安定剤、可塑剤、老化防止剤、顔料、染料、着色剤、帯電防止剤、発泡剤、その他の樹脂等の高分子や、添加剤を含有していてもよい。他の高分子としては、熱可塑性エラストマー、ゴム等を挙げることができる。
(Other ingredients)
The resin composition according to the present invention includes a flame retardant, a flame retardant aid, an antioxidant, a metal deactivator, other anti-aging agents, a lubricant, a filler and a reinforcing material, as long as the effects of the present invention are not hindered. It may contain a polymer such as an absorbent, a stabilizer, a plasticizer, an anti-aging agent, a pigment, a dye, a colorant, an antistatic agent, a foaming agent, other resins, and additives. Examples of other polymers include thermoplastic elastomers and rubbers.
［被覆電線］
本発明の被覆電線は、以上の樹脂組成物を導体に被覆してなる。すなわち、前記樹脂組成物を、所望により各種添加剤を定法に従い溶融混合し、得られた組成物を、定法に従い、押出し機等を用いて導体表面に被覆することによって得られる。組成物の混合手段としては、押出機、ヘンシェルミキサー、ニーダー、軸型混練機、バンバリーミキサー、ロールミル等のコンパウンディング可能な設備を使用することができる。
また、本発明の被覆電線は、自動車用電線、民生用電線等に好適に用いられる。
[Coated wire]
The covered electric wire of the present invention is formed by coating a conductor with the above resin composition. That is, the resin composition can be obtained by optionally melting and mixing various additives according to a conventional method, and coating the obtained composition on the conductor surface using an extruder or the like according to a conventional method. As a means for mixing the composition, compoundable equipment such as an extruder, a Henschel mixer, a kneader, a shaft kneader, a Banbury mixer, and a roll mill can be used.
Moreover, the covered electric wire of this invention is used suitably for the electric wire for motor vehicles, a consumer electric wire, etc.
以下に、実施例により本発明をさらに具体的に説明するが、本発明は以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples.
［実施例１〜８、比較例１〜７］
ＰＰＳ（ＤＩＣ（株）製、ＦＺ−２１００）と、ＰＰ（（株）プライムポリマー製、Ｅ−１１１Ｇ）と、チタン酸カリウム（大塚化学（株）、ＴＩＳＭＯ−Ｄ）とを、表１及び表２に示す配合部数にて混合し樹脂組成物を得た。
[Examples 1-8, Comparative Examples 1-7]
Table 1 and Table show PPS (manufactured by DIC Corporation, FZ-2100), PP (manufactured by Prime Polymer Co., Ltd., E-111G), and potassium titanate (Otsuka Chemical Co., Ltd., TISMO-D). The resin composition was obtained by mixing in the number of parts shown in 2.
（被覆電線の作製）
上記のようにして得た樹脂組成物を用いて、断面積が０．１３ｍｍ２の芯線（１９本の撚線）に被覆層の外径が０．７５ｍｍで、被覆層の厚さ０．１５ｍｍとなるように３００℃の温度条件で押出成形を行い、被覆電線を得た。
(Preparation of covered electric wire)
Using the resin composition obtained as described above, the outer diameter of the coating layer is 0.75 mm on the core wire (19 stranded wires) having a cross-sectional area of 0.13 mm 2 and the thickness of the coating layer is 0.15 mm. Extrusion molding was performed under a temperature condition of 300 ° C. to obtain a covered electric wire.
＜被覆電線の評価＞
得られた被覆電線の評価を耐摩耗性、難燃性、柔軟性についてそれぞれ行った。
<Evaluation of covered electric wire>
The obtained coated electric wires were evaluated for wear resistance, flame retardancy, and flexibility.
［耐摩耗性評価］
スクレープ摩耗試験装置を用い、長さ約１ｍの被覆電線をサンプルホルダーに載置し、先端に直径０．４５ｍｍの針を備えるプランジを、押圧部材を用いて総荷重７Ｎで被覆電線に押し当てて往復させ（往復距離１５．５ｍｍ）、被覆電線の被覆層が摩耗してプランジの針が被覆電線の導体（芯線）に接するまでの往復回数を測定し、１００回以上のものを「合格」、１００回未満のものを「不合格」とした。
[Abrasion resistance evaluation]
Using a scrape wear test device, place a covered wire with a length of about 1 m on a sample holder, and press a plunge with a needle with a diameter of 0.45 mm at the tip against the covered wire with a total load of 7 N using a pressing member. Reciprocate (reciprocation distance 15.5 mm), measure the number of reciprocations until the coated layer of the coated wire wears and the needle of the plunge contacts the conductor (core wire) of the coated wire. Those less than 100 times were regarded as “failed”.
［難燃性評価］
電線を４５度の角度でドラフト内に設置し、ブンゼンバーナーの内炎部を、２．５ｍｍ２以下の電線の場合は１５秒後、導体サイズが２．５ｍｍ２を超える電線の場合は３０秒後に試験試料から炎を外すＩＳ０６７２２の難燃試験において、絶縁材上の炎が全て７０秒以内に消え、試験試料上部の絶縁体が５０ｍｍ以上焼けずに残るものを「合格」、７０秒以上燃え続けるか、焼け残った試験試料上部の絶縁体が５０ｍｍ未満のものを「不合格」とした。
[Flame retardance evaluation]
Install the wire in the draft at an angle of 45 degrees, and the inner flame part of the Bunsen burner is 15 seconds after the wire of 2.5 mm 2 or less, 30 seconds when the conductor size exceeds 2.5 mm 2 In the flame retardant test of IS06722 where the flame is removed from the test sample later, all the flames on the insulating material disappear within 70 seconds and the insulator above the test sample remains unburned for 50 mm or more is “pass”, burns for 70 seconds or more Continuing or leaving an unburned insulator on the top of the test sample of less than 50 mm was considered “failed”.
［柔軟性評価］
長さ１００ｍｍの電線を一定の間隔の支点に固定しフォースゲージを用いて押し込み、０．５Ｎ未満の荷重で屈曲するものを「合格」、０．５Ｎ以上の荷重がかかるものを「不合格」とした。
[Flexibility evaluation]
A wire with a length of 100mm is fixed to a fulcrum at a fixed interval, pushed in with a force gauge, bent when it is bent with a load of less than 0.5N, and “failed” when a load of 0.5N or more is applied. It was.
表１より、ＰＰＳ、ＰＰ、及びチタン酸カリウムの配合量が本発明の範囲内である実施例１〜７は耐摩耗性、難燃性、柔軟性に優れることが分かる。
これに対して、比較例１ではチタン酸カリウムが未添加である為、耐摩耗性を満足しない。比較例２ではチタン酸カリウムの添加量が少ない為に耐摩耗性を満足しない。比較例３ではチタン酸カリウムの多量添加によって耐摩耗性は向上するが、難燃性、柔軟性を満足できない。比較例４ではＰＰが未添加である為柔軟性を満足できない。比較例５ではＰＰの添加量が少ない為に柔軟性を満足できない。比較例６ではＰＰの添加量が多い為に耐摩耗性、難燃性を満足できない。比較例７ではチタン酸カリウム及びＰＰの添加量が多く、ＰＰＳの添加量が少ない為、耐摩耗性は合格するが、難燃性、柔軟性を満足できない。
From Table 1, it can be seen that Examples 1 to 7 in which the blending amounts of PPS, PP, and potassium titanate are within the scope of the present invention are excellent in wear resistance, flame retardancy, and flexibility.
On the other hand, in Comparative Example 1, since potassium titanate is not added, the wear resistance is not satisfied. In Comparative Example 2, the wear resistance is not satisfied because the amount of potassium titanate added is small. In Comparative Example 3, the wear resistance is improved by adding a large amount of potassium titanate, but flame retardancy and flexibility cannot be satisfied. In Comparative Example 4, the flexibility cannot be satisfied because PP is not added. In Comparative Example 5, the flexibility cannot be satisfied because the amount of PP added is small. In Comparative Example 6, since the amount of PP added is large, the wear resistance and flame retardancy cannot be satisfied. In Comparative Example 7, since the addition amounts of potassium titanate and PP are large and the addition amount of PPS is small, the wear resistance is passed, but the flame retardancy and flexibility cannot be satisfied.
Claims (1)
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| JP2011161836A JP5712076B2 (en) | 2011-07-25 | 2011-07-25 | Sheathed wire |
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| JP2011161836A JP5712076B2 (en) | 2011-07-25 | 2011-07-25 | Sheathed wire |
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| JP5712076B2 true JP5712076B2 (en) | 2015-05-07 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63137957A (en) * | 1986-11-28 | 1988-06-09 | Shin Etsu Polymer Co Ltd | Polyphenylene sulfide resin composition |
| JP2673758B2 (en) * | 1992-02-18 | 1997-11-05 | 矢崎総業株式会社 | Flame-retardant olefin-based resin composition, and wire / cable that uses flame-retardant olefin-based resin composition and has excellent flame resistance and abrasion resistance |
| JPH07249319A (en) * | 1994-03-09 | 1995-09-26 | Hitachi Cable Ltd | Insulated electric wire |
| JP3187372B2 (en) * | 1998-07-24 | 2001-07-11 | 大塚化学株式会社 | Resin composition for sliding member and sliding member |
| JP3078807B2 (en) * | 1998-10-29 | 2000-08-21 | 大塚化学株式会社 | Sliding member |
| JP2000207937A (en) * | 1999-01-11 | 2000-07-28 | Fujikura Ltd | Flame-retardant resin composition for electric wire and cable |
| JP2001206992A (en) * | 2000-01-26 | 2001-07-31 | Fujikura Ltd | Halogen-free flame-retardant resin composition |
| JP2006012649A (en) * | 2004-06-28 | 2006-01-12 | Toray Ind Inc | Resin coated wire |
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