JPH09171721A - Flame-retardant insulated wire - Google Patents
Flame-retardant insulated wireInfo
- Publication number
- JPH09171721A JPH09171721A JP7332394A JP33239495A JPH09171721A JP H09171721 A JPH09171721 A JP H09171721A JP 7332394 A JP7332394 A JP 7332394A JP 33239495 A JP33239495 A JP 33239495A JP H09171721 A JPH09171721 A JP H09171721A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- retardant
- insulated wire
- polyolefin
- weight
- 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.)
- Pending
Links
- 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 title claims abstract description 45
- 239000003063 flame retardant Substances 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 229920000098 polyolefin Polymers 0.000 claims abstract description 16
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 13
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 13
- 238000004132 cross linking Methods 0.000 claims abstract description 11
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 8
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004898 kneading Methods 0.000 description 6
- 239000011342 resin composition Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- -1 polypropylene, ethylene propylene copolymer Polymers 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- YKTNISGZEGZHIS-UHFFFAOYSA-N 2-$l^{1}-oxidanyloxy-2-methylpropane Chemical group CC(C)(C)O[O] YKTNISGZEGZHIS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000002611 lead compounds Chemical class 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UBRWPVTUQDJKCC-UHFFFAOYSA-N 1,3-bis(2-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC(C(C)(C)OOC(C)(C)C)=C1 UBRWPVTUQDJKCC-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- OOYYYGOZSPVMNY-UHFFFAOYSA-N 3-(disilanylsilyl)propyl 2-methylprop-2-enoate Chemical compound C(C(=C)C)(=O)OCCC[SiH2][SiH2][SiH3] OOYYYGOZSPVMNY-UHFFFAOYSA-N 0.000 description 1
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001385 heavy metal Chemical class 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229960000816 magnesium hydroxide Drugs 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
(57)【要約】
【課題】本発明の課題は、優れた耐摩耗性と耐熱性とを
有し且つ焼却燃焼時には環境汚染を起こさない新規な難
燃性絶縁電線を提供することにある。
【解決手段】本発明は、導体上に難燃性組成物を被覆し
て成る難燃性絶縁電線において、前記の難燃性組成物は
ポリオレフィンと不飽和カルボン酸若しくはその誘導体
変性ポリオレフィンとのブレンドポリマー１００重量部
に対して金属水酸化物３０〜１５０重量部と架橋剤とを
適量加えて成り且つそのＪＩＳ−Ｃ３００５に準じて測
定した架橋度が５〜３０％であることを特徴とする難燃
性絶縁電線にある。
(57) Abstract: An object of the present invention is to provide a novel flame-retardant insulated wire that has excellent wear resistance and heat resistance and does not cause environmental pollution during incineration combustion. The present invention relates to a flame-retardant insulated wire in which a conductor is coated with a flame-retardant composition, wherein the flame-retardant composition is a blend of a polyolefin and an unsaturated carboxylic acid or a derivative-modified polyolefin thereof. Difficulty in that 30 to 150 parts by weight of a metal hydroxide and an appropriate amount of a cross-linking agent are added to 100 parts by weight of a polymer, and the degree of cross-linking measured according to JIS-C3005 is 5 to 30%. Located on flammable insulated wire.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は難燃性絶縁電線に関
するものである。TECHNICAL FIELD The present invention relates to a flame-retardant insulated wire.
【０００２】[0002]
【従来の技術】ワイヤハーネス電線は乗用車、家庭用電
気機器、電気機器等に広く使用されている。2. Description of the Related Art Wire harness electric wires are widely used in passenger cars, household electric appliances, electric appliances and the like.
【０００３】従来よりこのワイヤハーネス電線の絶縁層
には耐摩耗性、電気絶縁性、耐熱性、加工性、安価性等
の総合バランスの点からポリ塩化ビニル樹脂組成物が多
用されてきている。Conventionally, a polyvinyl chloride resin composition has been widely used for the insulating layer of this wire harness electric wire from the viewpoint of comprehensive balance of abrasion resistance, electric insulation, heat resistance, workability, and low cost.
【０００４】このポリ塩化ビニル樹脂組成物はポリ塩化
ビニル樹脂、鉛化合物安定剤、ハロゲン化難燃剤、可塑
剤等が配合されて成るものであることから、焼却処分す
ると多量の塩化水素ガス、ハロゲン化合物、鉛化合物等
が排出し、その結果大気、土壌、河川等の環境を汚染す
る懸念がある。Since this polyvinyl chloride resin composition contains polyvinyl chloride resin, a lead compound stabilizer, a halogenated flame retardant, a plasticizer, etc., when it is incinerated, a large amount of hydrogen chloride gas and halogen are contained. There is a concern that compounds, lead compounds, etc. may be emitted, resulting in pollution of the environment such as the atmosphere, soil and rivers.
【０００５】この様な訳でワイヤハーネス電線の絶縁層
としてノンハロゲン難燃性樹脂組成物を用いることが検
討されている。For this reason, the use of a halogen-free flame-retardant resin composition as an insulating layer for wire harness electric wires has been studied.
【０００６】しかしながら従来のノンハロゲン難燃性樹
脂組成物はポリ塩化ビニル樹脂組成物に比較して耐摩耗
性及び耐熱性が低いと言う難点があった。However, the conventional halogen-free flame-retardant resin composition has a drawback in that it has lower abrasion resistance and heat resistance than the polyvinyl chloride resin composition.
【０００７】[0007]
【発明が解決しようとする課題】本発明はかかる点に立
って為されたものであって、その目的とするところは前
記した従来技術の欠点を解消し、優れた耐摩耗性と耐熱
性とを有し且つ焼却燃焼時には環境汚染を起こさない新
規な難燃性絶縁電線を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to solve the above-mentioned drawbacks of the prior art and to obtain excellent wear resistance and heat resistance. Another object of the present invention is to provide a new flame-retardant insulated electric wire that has the above-mentioned properties and does not cause environmental pollution when incinerated and burned.
【０００８】[0008]
【課題を解決するための手段】本発明の要旨とするとこ
ろは、導体上に難燃性組成物を被覆して成る難燃性絶縁
電線において、前記の難燃性組成物はポリオレフィンと
不飽和カルボン酸若しくはその誘導体変性ポリオレフィ
ンとのブレンドポリマー１００重量部に対して金属水酸
化物３０〜１５０重量部と架橋剤とを適量加えて成り且
つそのＪＩＳ−Ｃ３００５に準じて測定した架橋度が５
〜３０％であることを特徴とする難燃性絶縁電線にあ
る。The gist of the present invention is to provide a flame-retardant insulated wire comprising a conductor coated with a flame-retardant composition, wherein the flame-retardant composition is unsaturated with polyolefin. It is made by adding 30 to 150 parts by weight of a metal hydroxide and an appropriate amount of a crosslinking agent to 100 parts by weight of a blend polymer with a carboxylic acid or a derivative-modified polyolefin thereof, and has a crosslinking degree of 5 measured according to JIS-C3005.
The flame-retardant insulated electric wire is characterized by being -30%.
【０００９】本発明で用いるポリオレフィンとしては超
低密度ポリエチレン、低密度ポリエチレン、ポリプロピ
レン、エチレンプロピレンコポリマ、エチレンブテンコ
ポリマ、エチレンオクテンコポリマ等がある。これらは
単独若しくは組み合わせて使用することがてきる。The polyolefin used in the present invention includes ultra low density polyethylene, low density polyethylene, polypropylene, ethylene propylene copolymer, ethylene butene copolymer, ethylene octene copolymer and the like. These can be used alone or in combination.
【００１０】また、本発明においてこれらのポリオレフ
ィンは難燃性絶縁電線の可撓性の確保の点から曲げ弾性
率２００Mpa 以下のポリオレフィンが好ましい。In the present invention, these polyolefins are preferably polyolefins having a flexural modulus of 200 Mpa or less from the viewpoint of ensuring flexibility of the flame-retardant insulated wire.
【００１１】更に、本発明において不飽和カルボン酸若
しくはその誘導体変性ポリオレフィンはポリオレフィン
の重合時に不飽和カルボン酸若しくはその誘導体を共重
合反応させたものか、或いは一旦合成したポリオレフィ
ンに不飽和カルボン酸若しくはその誘導体をグラフト反
応させて成るものである。Further, in the present invention, the unsaturated carboxylic acid or its derivative-modified polyolefin is one obtained by copolymerizing an unsaturated carboxylic acid or its derivative at the time of polymerization of the polyolefin, or an unsaturated carboxylic acid or its derivative which has been synthesized once. The derivative is graft-reacted.
【００１２】この不飽和カルボン酸若しくはその誘導体
変性ポリオレフィンは難燃性組成物の耐摩耗性と耐熱性
を顕著に向上することができる。The unsaturated carboxylic acid or its derivative-modified polyolefin can remarkably improve the wear resistance and heat resistance of the flame-retardant composition.
【００１３】本発明において、金属水酸化物としては水
酸化アルミニウム、水酸化マグネシウム、ニッケルある
いは亜鉛と水酸化マグネシウムの固溶体、ハイドロタル
サイト等が挙げられる。In the present invention, examples of the metal hydroxide include aluminum hydroxide, magnesium hydroxide, nickel or a solid solution of zinc and magnesium hydroxide, hydrotalcite and the like.
【００１４】これらの金属水酸化物は耐摩耗性の観点か
ら、脂肪酸，シランカップリング剤，チタネートカップ
リング剤等で表面処理することが望ましく、特にその中
でもシランカップリング剤が好ましい。なおこのシラン
カップリング剤とは次の式で示される。From the viewpoint of wear resistance, these metal hydroxides are preferably surface-treated with a fatty acid, a silane coupling agent, a titanate coupling agent or the like, and among them, the silane coupling agent is particularly preferable. The silane coupling agent is represented by the following formula.
【００１５】[0015]
【数１】 [Equation 1]
【００１６】式１において、Ｒとしてビニル系、メタク
リロキシ系、フェニル系、エポキシ系、アミノ系、メル
カプト系等があるが、特にビニル系及びメタクリロキシ
系の表面処理効果が著しい。ビニル系のシランカップリ
ング剤としてはビニルトリメトキシシラン、ビニルトリ
エトキシシラン、ビニルトリス（β−メトキシエトキ
シ）シラン等があり、メタクロリキシ系としてはγ−メ
タクリロキシプロピルトリメトキシシラン、γ−メタク
リロキシプロピルトリエトキシシラン等がある。In the formula (1), R includes vinyl type, methacryloxy type, phenyl type, epoxy type, amino type, mercapto type and the like, but the vinyl type and methacryloxy type surface treatment effects are particularly remarkable. Vinyl-based silane coupling agents include vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, and methacryloxy-based γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyltrisilane. There are ethoxysilane and the like.
【００１７】このシランカップリング剤の添加量は任意
であるが、金属水酸化物に対し、０．５〜３重量％の範
囲で処理するのが望ましい。このシランカップリング剤
の表面処理方法としては、コンパウンディング時に直接
添加する方法と、金属水酸化物表面に処理する方法の２
通りの方法があるが、後者の方がより効果的である。ま
た、金属水酸化物に表面処理する場合にはシランカップ
リング剤のアルコール等の有機溶媒あるいは酢酸水で希
釈した後、金属水酸化物粉体に噴霧するかあるいは水ス
ラリ中に添加して行うのが一般的である。このようにし
て表面処理した金属水酸化物は他の表面処理、例えば脂
肪酸やリン酸エステルで処理したものと併用しても良
い。The amount of the silane coupling agent added is arbitrary, but it is preferably treated in the range of 0.5 to 3% by weight with respect to the metal hydroxide. The surface treatment method of this silane coupling agent is a method of directly adding it during compounding, or a method of treating the surface of the metal hydroxide.
There are two ways, but the latter is more effective. In the case of surface-treating a metal hydroxide, it is diluted with an organic solvent such as alcohol as a silane coupling agent or acetic acid water, and then sprayed on the metal hydroxide powder or added to the water slurry. Is common. The metal hydroxide thus surface-treated may be used in combination with another surface-treatment such as fatty acid or phosphoric acid ester.
【００１８】本発明において金属水酸化物の混和量は、
ポリオレフィンと、不飽和カルボン酸もしくはその誘導
体で変性されたポリオレフィンの合計１００重量部に対
して３０〜１５０重量部が好ましい。すなわち、混和量
が３０重量部未満では目的とする難燃性を付与すること
ができず、また、１５０重量部を越えた場合には耐摩耗
性が著しく損なわれるからである。In the present invention, the admixture amount of metal hydroxide is
The amount is preferably 30 to 150 parts by weight based on 100 parts by weight in total of the polyolefin and the polyolefin modified with the unsaturated carboxylic acid or its derivative. That is, if the amount of admixture is less than 30 parts by weight, the desired flame retardancy cannot be imparted, and if it exceeds 150 parts by weight, the wear resistance is significantly impaired.
【００１９】本発明において難燃性組成物には適量の架
橋剤を混和する。そして架橋剤を混和した難燃性組成物
は高温下で混練し、その混練時の加温により架橋させ
る。この架橋した難燃性組成物は耐摩耗性と耐熱性とを
顕著に改善することができる。本発明において難燃性組
成物の架橋度を５〜３０％としたのは耐摩耗性と耐熱性
とのバランスして向上させるためである。In the present invention, an appropriate amount of a cross-linking agent is added to the flame retardant composition. The flame-retardant composition containing the cross-linking agent is kneaded at a high temperature and cross-linked by heating during the kneading. The crosslinked flame-retardant composition can remarkably improve wear resistance and heat resistance. In the present invention, the degree of crosslinking of the flame-retardant composition is set to 5 to 30% in order to improve the balance between wear resistance and heat resistance.
【００２０】架橋度の測定はＪＩＳ−Ｃ３００５に準拠
した方法で測定し、次式により算出したものである。The degree of crosslinking is measured by the method according to JIS-C3005 and calculated by the following formula.
【００２１】[0021]
【数２】 [Equation 2]
【００２２】架橋剤としてはジクミルパーオキサイド、
１，３−ビス（第三ブチルパーオキシイソプロピル）ベ
ンゼン、２，５−ジメチル−２，５（第三ブチルパーオ
キシ）ヘキシン−３、１，１−ビス（第三ブチルパーオ
キシ）−３，３，５−トルメチルシクロヘキサン等のパ
ーオキサイドが代表的なものであり、これらを混練時に
加え部分架橋させることにより高温での変形を抑えるこ
とができる。混練法としてはロール、バンバリミキサ、
ニーダ、二軸押出機等が挙げられ、架橋剤の分解温度以
上で混練を行う。As the crosslinking agent, dicumyl peroxide,
1,3-bis (tert-butylperoxyisopropyl) benzene, 2,5-dimethyl-2,5 (tert-butylperoxy) hexyne-3,1,1-bis (tert-butylperoxy) -3, Peroxides such as 3,5-tolumethylcyclohexane are typical ones, and by adding these during kneading and partially cross-linking, deformation at high temperature can be suppressed. As a kneading method, roll, Banbury mixer,
A kneader, a twin-screw extruder, or the like can be used, and kneading is performed at a decomposition temperature of the crosslinking agent or higher.
【００２３】本発明において、難燃性組成物の混練後の
架橋度は５〜３０重量％とする必要があり、限定値未満
では例えば日本自動社規格ＪＡＳＯ−Ｄ６１１規定の耐
熱性試験で熱変形が大きくなり、規格値を満足すること
ができない。また限定値を超えると、架橋網目が多くな
り流動性が著しく低下し、押出成形が困難となる。In the present invention, the degree of crosslinking after kneading of the flame-retardant composition must be 5 to 30% by weight, and if it is less than the limit value, for example, heat deformation in a heat resistance test prescribed by JASO-D611 of Japan Automobile Company. Becomes larger and the standard value cannot be satisfied. On the other hand, when the amount exceeds the limit value, the cross-linking network is increased and the fluidity is remarkably reduced, which makes extrusion molding difficult.
【００２４】本発明では上記成分に加え、酸化防止剤、
銅害防止剤、滑剤、顔料等を適宜添加してもよい。In the present invention, in addition to the above components, an antioxidant,
A copper damage inhibitor, a lubricant, a pigment and the like may be added appropriately.
【００２５】[0025]
【発明の実施の形態】次に、本発明の難燃性絶縁電線の
実施例を従来の比較例と共に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the flame-retardant insulated wire of the present invention will be described together with a conventional comparative example.
【００２６】まず、表１に示す配合割合の難燃性組成物
をそれぞれ秤量して作成した。First, the flame-retardant compositions having the compounding ratios shown in Table 1 were weighed and prepared.
【００２７】[0027]
【表１】 [Table 1]
【００２８】次に、それぞれの難燃性組成物をブレンダ
ーに入れ、完全にブレンドした。Each flame retardant composition was then placed in a blender and thoroughly blended.
【００２９】次に、このようにブレンドしたそれぞれの
難燃性組成物を２軸押出機に入れ、２２０℃に混練しな
がら架橋させ、最後にペレット状に押出した。Next, the respective flame-retardant compositions thus blended were put into a twin-screw extruder, crosslinked while kneading at 220 ° C., and finally extruded into pellets.
【００３０】最後に、このようにして得られたペレット
状難燃性組成物を２６０℃に加温されている４０mm１軸
押出機に入れ、外径φ３．０mmの導線上に厚さ０．８mm
となるように押出し被覆した。Finally, the pellet-shaped flame-retardant composition thus obtained was put into a 40 mm single-screw extruder heated to 260 ° C., and 0.8 mm thick on a conductor wire with an outer diameter of 3.0 mm.
Was extrusion coated.
【００３１】図１はかくして得られた実施例１の難燃性
絶縁電線の横断面図である。FIG. 1 is a cross-sectional view of the flame-retardant insulated wire of Example 1 thus obtained.
【００３２】図１において１は導体、２は難燃性絶縁層
である。In FIG. 1, 1 is a conductor and 2 is a flame-retardant insulating layer.
【００３３】このようにして得られた実施例及び比較例
の難燃性絶縁電線は次のような特性試験を行った。The flame-retardant insulated wires of Examples and Comparative Examples thus obtained were subjected to the following characteristic test.
【００３４】（１） 架橋度 電線から絶縁体を約１ｇ取りこれを１２０メッシュの金
網の中に入れ、１１０℃の熱キシレンで２４ｈ抽出後、
ＪＩＳ Ｃ３００５に準拠し、架橋度を測定した。(1) Crosslinking degree About 1 g of an insulator was taken from an electric wire, put in a wire mesh of 120 mesh, and extracted with hot xylene at 110 ° C. for 24 hours.
The degree of crosslinking was measured according to JIS C3005.
【００３５】（２） 耐摩耗性 ＪＡＳＯ−Ｄ６１１に準拠し、図１に示すように、長さ
９０mmの試料電線に、ＪＩＳ−Ｒ６２５１で規定する１
５０番Ｇの摩耗テープ７が接するように１３５０ｇのお
もり５を加え、固定した後、１５００mm／min の速さで
テープを読みとる作業を１試料につき４点行い、その平
均値を評価した。ＪＡＳＯ−Ｄ６１１に準じ、その値が
５１cm未満のものを不合格とした。(2) Wear resistance According to JASO-D611, as shown in FIG. 1, a sample electric wire having a length of 90 mm is specified by JIS-R6251.
1350 g of the weight 5 was added so that the abrasion tape 7 of No. 50 G was in contact, and after fixing, the work of reading the tape at a speed of 1500 mm / min was performed at 4 points for each sample, and the average value was evaluated. According to JASO-D611, those with a value of less than 51 cm were rejected.
【００３６】（３） 難燃性 ＪＡＳＯ−Ｄ６０８−８７に準拠し、試料３００mmを水
平に支持し、ブンゼンバーナーの還元炎を１０秒間当て
た後の残炎時間を測定した。そして、残炎時間が３０秒
以内を合格、３０秒を越えるものを不合格と判定した。(3) Flame retardance According to JASO-D608-87, 300 mm of the sample was supported horizontally, and the afterflame time was measured after the reducing flame of Bunsen burner was applied for 10 seconds. Then, afterflame time of 30 seconds or less was determined to be acceptable, and afterflame time of 30 seconds or more was determined to be unacceptable.
【００３７】（４）耐熱性 ＪＡＳＯ−Ｄ６１１に準拠し、電線６０cmの両端にそれ
ぞれ１３５０ｇのおもりを加え、これを２２５mmφのマ
ンドレルにつるし、１２０℃で１２０時間加熱する。加
熱後、常温まで冷却しマンドレルの囲りに加熱時の屈曲
とは反対方向に巻き付けてから、水中で１０００Ｖ、１
分の耐圧試験を行い、絶縁破壊しないものを合格とし
た。(4) Heat resistance According to JASO-D611, a weight of 1350 g is added to both ends of an electric wire 60 cm, and the weight is hung on a 225 mmφ mandrel and heated at 120 ° C. for 120 hours. After heating, cool to room temperature, wrap it around the mandrel in the direction opposite to the bending when heating, and then 1000 V in water for 1
A withstand voltage test was conducted for a minute, and a product that did not cause dielectric breakdown was regarded as acceptable.
【００３８】表１からわかるように比較例１と比較例３
の難燃性絶縁電線は耐摩耗性が悪く、また比較例２の難
燃性絶縁電線は難燃性が劣っている。比較例４の難燃性
絶縁電線は耐摩耗性と耐熱性とが劣っている。そして比
較例５の難燃性絶縁電線は架橋度が余りに高く、その結
果絶縁電線として押出成形することができなかった。As can be seen from Table 1, Comparative Example 1 and Comparative Example 3
The flame-retardant insulated electric wire of No. 2 has poor wear resistance, and the flame-retardant insulated electric wire of Comparative Example 2 has inferior flame retardancy. The flame-retardant insulated wire of Comparative Example 4 is inferior in wear resistance and heat resistance. The flame-retardant insulated wire of Comparative Example 5 had an excessively high degree of crosslinking, and as a result, could not be extrusion-molded as an insulated wire.
【００３９】これらに対して実施例１〜４の難燃性絶縁
電線は耐摩耗性、難燃性及び耐熱性がいずれも優れた結
果を示した。On the other hand, the flame-retardant insulated wires of Examples 1 to 4 showed excellent results in wear resistance, flame retardancy and heat resistance.
【００４０】しかもこれらの実施例１〜４の難燃性絶縁
電線は有害なハロゲン化物や重金属化合物が配合されて
いないことから焼却燃焼時には環境汚染を全く起こさな
い。Moreover, since the flame-retardant insulated wires of Examples 1 to 4 do not contain harmful halides or heavy metal compounds, no environmental pollution occurs at the time of incineration and combustion.
【００４１】[0041]
【発明の効果】本発明の難燃性絶縁電線は焼却燃焼時に
は環境汚染を全く起こすことなく、しかも耐摩耗性、難
燃性及び耐熱性がいずれも優れており、工業上有用であ
る。INDUSTRIAL APPLICABILITY The flame-retardant insulated electric wire of the present invention does not cause environmental pollution at the time of incineration and combustion and is excellent in wear resistance, flame retardancy and heat resistance, and is industrially useful.
【図１】本発明の難燃性絶縁電線の横断面図である。FIG. 1 is a cross-sectional view of a flame-retardant insulated wire of the present invention.
【図２】耐摩耗性試験方法を示した説明図である。FIG. 2 is an explanatory diagram showing a wear resistance test method.
１ 導体 ２ 難燃性絶縁層 ３、４ 支持 ５ おもり ６ 導電部分 ７ ＃１５０番摩耗テープ ８ ガイド ９ 導通測定 １０ リード線 1 conductor 2 flame-retardant insulating layer 3, 4 support 5 weight 6 conductive part 7 # 150 wear tape 8 guide 9 continuity measurement 10 lead wire
Claims (3)
性絶縁電線において、前記難燃性組成物はポリオレフィ
ンと不飽和カルボン酸若しくはその誘導体変性ポリオレ
フィンとのブレンドポリマー１００重量部に対して金属
水酸化物３０〜１５０重量部と架橋剤とを適量加えて成
り且つそのＪＩＳ−Ｃ３００５に準じて測定した架橋度
が５〜３０％であることを特徴とする難燃性絶縁電線。1. A flame-retardant insulated wire comprising a conductor coated with a flame-retardant composition, wherein the flame-retardant composition is 100 parts by weight of a blend polymer of a polyolefin and an unsaturated carboxylic acid or a derivative-modified polyolefin thereof. And 30 to 150 parts by weight of a metal hydroxide and an appropriate amount of a cross-linking agent, and the degree of cross-linking measured according to JIS-C3005 is 5 to 30%. .
ンが曲げ弾性率２００ＭＰａ以下のポリオレフィンであ
ることを特徴とする請求項１記載の難燃性絶縁電線。2. The flame-retardant insulated wire according to claim 1, wherein the polyolefin blended with the flame-retardant composition is a polyolefin having a flexural modulus of 200 MPa or less.
がシランカップリング剤表面処理金属水酸化物であるこ
とを特徴とする請求項１記載の難燃性絶縁電線。3. The flame-retardant insulated wire according to claim 1, wherein the metal hydroxide blended with the flame-retardant composition is a silane coupling agent surface-treated metal hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7332394A JPH09171721A (en) | 1995-12-20 | 1995-12-20 | Flame-retardant insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7332394A JPH09171721A (en) | 1995-12-20 | 1995-12-20 | Flame-retardant insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09171721A true JPH09171721A (en) | 1997-06-30 |
Family
ID=18254487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7332394A Pending JPH09171721A (en) | 1995-12-20 | 1995-12-20 | Flame-retardant insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09171721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007073530A (en) * | 2006-10-05 | 2007-03-22 | Furukawa Electric Co Ltd:The | Wire covering resin composition and insulated wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04341709A (en) * | 1991-05-16 | 1992-11-27 | Fujikura Ltd | Insulated wire |
| JPH0625367A (en) * | 1990-08-01 | 1994-02-01 | Himont Inc | Elastoplastic polyolefin composition |
| JPH07122140A (en) * | 1993-10-22 | 1995-05-12 | Hitachi Cable Ltd | Flame-retardant insulated wire manufacturing method |
-
1995
- 1995-12-20 JP JP7332394A patent/JPH09171721A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0625367A (en) * | 1990-08-01 | 1994-02-01 | Himont Inc | Elastoplastic polyolefin composition |
| JPH04341709A (en) * | 1991-05-16 | 1992-11-27 | Fujikura Ltd | Insulated wire |
| JPH07122140A (en) * | 1993-10-22 | 1995-05-12 | Hitachi Cable Ltd | Flame-retardant insulated wire manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007073530A (en) * | 2006-10-05 | 2007-03-22 | Furukawa Electric Co Ltd:The | Wire covering resin composition and insulated wire |
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