JPH01243309A - Flame retardant wire/cable - Google Patents
Flame retardant wire/cableInfo
- Publication number
- JPH01243309A JPH01243309A JP63071669A JP7166988A JPH01243309A JP H01243309 A JPH01243309 A JP H01243309A JP 63071669 A JP63071669 A JP 63071669A JP 7166988 A JP7166988 A JP 7166988A JP H01243309 A JPH01243309 A JP H01243309A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- copolymer
- melting point
- density
- polyolefin
- 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 8
- 239000003063 flame retardant Substances 0.000 title claims abstract description 8
- 239000004711 α-olefin Substances 0.000 claims abstract description 11
- 229920000098 polyolefin Polymers 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005977 Ethylene Substances 0.000 claims abstract description 4
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 6
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 6
- 150000004692 metal hydroxides Chemical class 0.000 claims description 6
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 7
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 229920006213 ethylene-alphaolefin copolymer Polymers 0.000 abstract 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 238000010292 electrical insulation Methods 0.000 description 7
- -1 polyethylene, ethylene-vinyl acetate Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 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
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical compound CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-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
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-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
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 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
- 229920006228 ethylene acrylate copolymer Polymers 0.000 description 1
- 229920005680 ethylene-methyl methacrylate copolymer Polymers 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000012685 gas phase polymerization Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、機械特性に優れ、しかも燃焼時に有毒なハ
ロゲン系ガスを発生しない難燃性電線・ケーブルに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to flame-retardant electric wires and cables that have excellent mechanical properties and do not generate toxic halogen gas when burned.
［従来の技術］
最近火災昨の安全性を高めるためハロゲン系ガスを発生
しない難燃性材料か注目され、ポリオレフィンに金属水
酸化物を混和する方法か研究されている。このような情
勢に加え、電線・ケーブルの電気絶縁層に可撓性９強靭
性といった性質を満足するものか強く要望されるように
なってきている。[Prior Art] Recently, flame-retardant materials that do not emit halogen gases have been attracting attention in order to improve safety in the event of fires, and research has been conducted into methods of mixing metal hydroxides with polyolefins. In addition to this situation, there is a strong demand for electrical insulating layers for electric wires and cables to satisfy properties such as flexibility and toughness.
従来これらの絶縁層に使用される樹脂としては、ポリエ
チレン、エチレン−酢酸ビニル共重合体、エチレン−プ
ロピレンゴムといったものがあげられる。Examples of resins conventionally used for these insulating layers include polyethylene, ethylene-vinyl acetate copolymer, and ethylene-propylene rubber.
［発明が解決しようとする課題］
しかし、ポリエチレンは可撓性に欠け、エチレン−酢酸
ビニル共重合体は、酢酸ビニル量を多くすれば可撓性に
優れる反面、電気絶縁性か低下し、エチレン−プロピレ
ンゴムは強靭性に劣り、強靭性、電気絶縁性、可撓性、
難燃性といった性質を兼備した電気絶縁層を有する電線
・ケーブルは実現てきないという状況にある。[Problems to be Solved by the Invention] However, polyethylene lacks flexibility, and ethylene-vinyl acetate copolymer has excellent flexibility if the amount of vinyl acetate is increased, but its electrical insulation properties decrease, and ethylene -Propylene rubber has poor toughness, toughness, electrical insulation, flexibility,
The current situation is that electric wires and cables with electrical insulation layers that have properties such as flame retardancy have not been realized.
この発明は、上記の点に基づいてなされたものてあり、
強靭性、電気絶縁性、可撓性といった性質を兼備した電
気絶縁層を有する難燃性電線・ケーブルの提供を目的と
する。This invention has been made based on the above points,
The purpose of this invention is to provide flame-retardant wires and cables that have an electrically insulating layer that has properties such as toughness, electrical insulation, and flexibility.
［課題を解決するための手段］
この発明の電線・ケーブルは、エチレンと炭素数３〜１
２のαオレフィンを共重合させて得られる密度か０．８
５〜０．９１．融点１１０℃以上のエチレン−αオレフ
ィン共重合体とカルボニル基を有するポリオレフィン１
００重量部に対し、金属水酸化物を５０〜３００重量部
混和した組成物からなる電気絶縁層を有する難燃性電線
・ケーブルである。[Means for Solving the Problem] The electric wire/cable of the present invention contains ethylene and 3 to 1 carbon atoms.
The density obtained by copolymerizing α-olefin of 2 is 0.8
5-0.91. Polyolefin 1 having an ethylene-α olefin copolymer with a melting point of 110°C or higher and a carbonyl group
This flame-retardant wire/cable has an electrical insulating layer made of a composition in which 50 to 300 parts by weight of a metal hydroxide is mixed with 00 parts by weight.
［実 施 例］
この発明において、エチレン−αオレフィン共重合体の
密度を０．８５〜０．９１と規定したのは、０．８５未
満では機械的強度の低下が大きく、０．９１を越えると
可撓性が低下するからである。また、融点（示差走査熱
量計で測定した場合のピーク温度）が１１０℃以上でな
いと常温での強靭性に欠ける。メルトインデックスは特
に規定しないが、加工性を考慮すると、０．１〜ｌＯの
範囲が好ましい。[Example] In this invention, the density of the ethylene-α olefin copolymer is specified as 0.85 to 0.91 because if it is less than 0.85, the mechanical strength will decrease significantly, and if it exceeds 0.91. This is because flexibility decreases. Further, unless the melting point (peak temperature when measured with a differential scanning calorimeter) is 110° C. or higher, toughness at room temperature is lacking. The melt index is not particularly defined, but in consideration of processability, it is preferably in the range of 0.1 to 1O.
この発明における上記のようなエチレン−αオレフィン
共重合体は、例えば、マグネシウムとチタン化合ζおよ
び／またはバナジウム化合物とを含有する固体物質と有
機アルミニウム化合物とを組合せた触媒の存在下て、実
質上溶媒の存在しない気相状！ぶてエチレンと炭素数３
〜１２のαオレフィンを共重合させることにより得られ
る。In the present invention, the above-mentioned ethylene-α-olefin copolymer can be produced by substantially Gas phase without solvent! Butte ethylene and carbon number 3
It is obtained by copolymerizing ~12 α-olefins.
固体物質としては、金属マグネシウム、水酸化マグネシ
ウム、炭酸マグネシウム、酸化マグネシウム、塩化マグ
ネシウムなど、また、けい素、アルミニウム、カルシウ
ムから選ばれる金属とマグネシウム原子とを含有する複
塩、複酸化物、炭酸塩、塩化物、水酸化物など、さらに
はこれらの焦Ｉａ質固体坦体を含酸素化合物、含Ｍ、Ｆ
ｔ化合物、芳香族炭化水素、ハロゲン含有物質で処理ま
たは反応させたもの等にマグネシウムを含む無機質固体
坦体にチタン化合物および／またはバナジウム化合物を
公知の方法により担持させたものかあげられる。Solid substances include magnesium metal, magnesium hydroxide, magnesium carbonate, magnesium oxide, magnesium chloride, etc., as well as double salts, double oxides, and carbonates containing magnesium atoms and metals selected from silicon, aluminum, and calcium. , chloride, hydroxide, etc. Furthermore, these pyrolytic solid carriers may be mixed with oxygen-containing compounds, M-containing compounds, F-containing compounds, etc.
Examples include those in which a titanium compound and/or vanadium compound is supported by a known method on an inorganic solid carrier containing magnesium, treated or reacted with a t-compound, an aromatic hydrocarbon, a halogen-containing substance, etc.
有機アルミニウム化合物としては、一般式Ｒ３Ａｔ、Ｒ
２ＡＩＸ、ＲＡＩＸ２．Ｒ２ＡｌＯＲ。As organoaluminum compounds, general formulas R3At, R
2AIX, RAIX2. R2AlOR.
ＲＡＩ（ＯＲ）ＸおよびＲ３Ａ１２Ｘ３であラワされる
化合物が好ましい。ここで、Ｒは炭素数１〜２０のアル
キル基、アリール基またはアラルキル基、Ｘはハロゲン
原子を示し、Ｒは同一でも異なるものでもよい。Compounds represented by RAI(OR)X and R3A12X3 are preferred. Here, R represents an alkyl group, aryl group, or aralkyl group having 1 to 20 carbon atoms, X represents a halogen atom, and R may be the same or different.
上記の触媒系をαオレフィンと接触させた後、気相重合
反応を用いることによって、その重合活性を大幅に向上
させ、未処理の場合よりも一層安定した運転ができる。By using a gas phase polymerization reaction after contacting the above catalyst system with an alpha olefin, its polymerization activity is significantly increased and operation is more stable than in the untreated case.
このとき使用するαオレフィンとしては、プロピレン、
ブテン−１，ペンテン−１，４−メチルペンテン−１，
ヘプテン−１、ヘキセン−１，オクテン−１，デセン−
１゜ドデセン−１，およびこれらの混合物等をあげるこ
とかできる。The α-olefins used at this time include propylene,
butene-1, pentene-1,4-methylpentene-1,
Heptene-1, Hexene-1, Octene-1, Decene-1
Examples include 1°dodecene-1 and mixtures thereof.
重合反応は、実質的に溶媒の存在しない気相状態て行わ
れ、使用する反応器としては、流動床、攪拌槽などの公
知のものか使用できる。重合反応温度は、通常Ｏ〜１１
０℃、好ましくは２０〜８０℃であり、圧力は、常圧〜
７０ｋｇ／Ｃｒｎ′、好しくは２〜６０ ｋｇ／ｃｒｒ
ｆである。分子量の調整は、重合温度、触媒のモル比、
コモノマー量などによつても調節できるか、重合系中に
水素を添加することにより効果的に行われる。The polymerization reaction is carried out in a gas phase substantially in the absence of a solvent, and any known reactor such as a fluidized bed or a stirred tank can be used as the reactor. The polymerization reaction temperature is usually 0 to 11
The temperature is 0°C, preferably 20 to 80°C, and the pressure is normal pressure to
70 kg/crn', preferably 2-60 kg/crr
It is f. The molecular weight can be adjusted by adjusting the polymerization temperature, catalyst molar ratio,
It can be adjusted by adjusting the amount of comonomer, etc., or it can be effectively carried out by adding hydrogen to the polymerization system.
上記のようにして得られたエチレン−αオレフィン共重
合体に難燃性を向上させるための、カルボニル基を有す
るポリオレフィンをブレンドすることが有効なことを見
出した。カルボニル基を有するポリオレフィンとしては
エチレン−メチル共重合体、エチレンアクリレート共重
合体、エチルブチルアクリレート共重合体、エチレンメ
チルメタクリレート共重合体、エチレン酢酸ビニル共重
合体といったものかあげられ、これらはポリマーのブレ
ンド物に対しカルボニル基含有琶て５〜２０重量％の範
囲とする必要かある。５用量％未満では十分な難燃性を
付与てきず、２０重量％を越えると電気絶縁性か著しく
低下する。It has been found that it is effective to blend a polyolefin having a carbonyl group into the ethylene-α-olefin copolymer obtained as described above to improve flame retardance. Examples of polyolefins having a carbonyl group include ethylene-methyl copolymer, ethylene acrylate copolymer, ethyl butyl acrylate copolymer, ethylene methyl methacrylate copolymer, and ethylene vinyl acetate copolymer. The carbonyl group-containing content of the blend must be in the range of 5 to 20% by weight. If the amount is less than 5% by weight, sufficient flame retardancy cannot be imparted, and if it exceeds 20% by weight, the electrical insulation properties will be significantly reduced.
金属水酸化物としては、水酸化アルミニウム。Aluminum hydroxide is a metal hydroxide.
水酸化マグネシウム、ａ！基性炭酸マグネシウム。Magnesium hydroxide, a! Basic magnesium carbonate.
パイトロタルサイト類などがあげられる。これらはシラ
ンカップリン剤、チタネートカップリンク剤、脂肪酸金
属塩などで表面処理したものを使用することにより、組
成物の押出し加工性を向上できる。金属水酸化物は、ポ
リマ成分１００重量部に対して５０〜３００重量部の範
囲で含有させる必要かあり、５０重量部未満では目的と
する難燃性を付与てきず、３００重量部を越えると引っ
張り特性などの機械的強度が不十分となる。Examples include pyrotalcites. The extrusion processability of the composition can be improved by using those that have been surface-treated with a silane coupling agent, a titanate coupling agent, a fatty acid metal salt, or the like. The metal hydroxide needs to be contained in a range of 50 to 300 parts by weight per 100 parts by weight of the polymer component; if it is less than 50 parts by weight, the desired flame retardance cannot be imparted, and if it exceeds 300 parts by weight, Mechanical strength such as tensile properties becomes insufficient.
この他に酸化防止剤９分散剤、可塑剤などを添加してよ
い。In addition, antioxidants, dispersants, plasticizers, etc. may be added.
このような樹脂組成物は、導体外周に直接あるいは半導
電層を介して被覆され、架橋あるいは非架橋の電気絶縁
層を形成する。架橋する場合は、ジクミルパーオキサイ
ド、２．５−ジメチル−２，５−ジ（第三ブチル・ペル
オキシ）ヘキシン−３に代表されるパーオキサイドを用
いて加熱架橋するのが一般的である。その他、ビニルト
リエトキシシランのような有機シランをポリマーにグラ
フト後、水分と接触させてシラノール縮合触媒によりシ
ランな結合させて架橋させるいわゆるシラン水架橋、あ
るいは電子線のような電離性放射線の照射による架橋て
もよい。Such a resin composition is coated on the outer periphery of the conductor directly or via a semiconductive layer to form a crosslinked or non-crosslinked electrical insulating layer. In the case of crosslinking, it is common to carry out thermal crosslinking using a peroxide typified by dicumyl peroxide and 2,5-dimethyl-2,5-di(tert-butyl peroxy)hexyne-3. Other methods include so-called silane water crosslinking, in which an organic silane such as vinyltriethoxysilane is grafted onto a polymer, and then brought into contact with water to form a silane bond using a silanol condensation catalyst for crosslinking, or by irradiation with ionizing radiation such as an electron beam. May be crosslinked.
第１表に示すような実施例１〜６および比較例１〜４の
配合割合に従って、各種成分を温度１３０℃に保持した
１２インチロールに投入して混練した。この組成物を４
０ ｍ／ｍ （１，／Ｄ＝２２）押出機を用い、温度１
３０℃て断面１１ｉ２ ｍゴの導体上に厚さ０．８ｍｍ
に押出被覆し、架橋するものは１３気圧の水蒸気に３分
間保持し電線を作製し、実施例１〜６および比較例１〜
４の試料とした。According to the blending ratios of Examples 1 to 6 and Comparative Examples 1 to 4 as shown in Table 1, various components were put into a 12-inch roll maintained at a temperature of 130° C. and kneaded. This composition
0 m/m (1,/D=22) using an extruder, temperature 1
0.8 mm thick on a conductor with a cross section of 11i2 m at 30℃
Those to be cross-linked were extrusion coated and cross-linked by holding them in water vapor at 13 atmospheres for 3 minutes to prepare electric wires.
Sample No. 4 was used.
これらの試料について、引っ張り特性、絶縁抵抗、可撓
性および難燃性を測定した。Tensile properties, insulation resistance, flexibility and flame retardancy were measured on these samples.
なお、可撓性は長さ５０ｍｍの電線の片端を固定し、他
端にｌｏｏｇの荷重をかけたときの撓み量の測定値を示
した。In addition, the flexibility is the measured value of the amount of deflection when one end of a 50 mm long electric wire is fixed and a load of LOOG is applied to the other end.
これらの各測定値を纒めて第１表に示す。These measured values are summarized in Table 1.
第１表から明らかなように、この発明に係る実施例１〜
６は、いずれも引っ張り特性、電気絶縁性、可撓性Ｓよ
び難燃性を兼ね備えている。As is clear from Table 1, Examples 1 to 1 according to the present invention
All of No. 6 have tensile properties, electrical insulation, flexibility S, and flame retardancy.
これに対し、比較例１は結晶融点か規定値未満てあり、
引っ張り強さが低く、また密度か規定値を越える比較例
２は可撓性に欠ける。比較例３は金属水酸化物に含有量
がこの発明の規定値以下であり、比較例４はカルボニル
基を有するポリオレフィンを加えておらず、いずれも難
燃性が不十分である。On the other hand, in Comparative Example 1, the crystal melting point was less than the specified value,
Comparative Example 2, which has low tensile strength and density exceeding the specified value, lacks flexibility. In Comparative Example 3, the content of metal hydroxide was below the specified value of the present invention, and in Comparative Example 4, no polyolefin having a carbonyl group was added, and both had insufficient flame retardancy.
（以下余白）
［発明の効果］
以上の説明から明らかなように、この発明によれば強靭
性、電気絶縁性、可撓性および難燃性に優れ、しかも燃
焼時に有毒なハロゲン系ガスを発生しない電線・ケーブ
ルを実現できるようになる。(The following is a blank space) [Effects of the Invention] As is clear from the above description, the present invention has excellent toughness, electrical insulation, flexibility, and flame retardancy, and also generates toxic halogen gas when burned. It will be possible to create electric wires and cables that do not require wires or cables.
Claims (1)
て得られる密度が０．８５〜０．９１，融点１１０℃以
上のエチレン−αオレフィン共重合体とカルボニル基を
有するポリオレフィン１００重量部に対し、金属水酸化
物を５０〜３００重量部混和した組成物からなる電気絶
縁層を有することを特徴とする難燃性電線・ケーブル。For 100 parts by weight of an ethylene-α-olefin copolymer with a density of 0.85-0.91 and a melting point of 110°C or higher obtained by copolymerizing ethylene with an α-olefin having 3 to 12 carbon atoms and a polyolefin having a carbonyl group. A flame-retardant electric wire/cable characterized by having an electrical insulating layer made of a composition containing 50 to 300 parts by weight of a metal hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63071669A JPH01243309A (en) | 1988-03-24 | 1988-03-24 | Flame retardant wire/cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63071669A JPH01243309A (en) | 1988-03-24 | 1988-03-24 | Flame retardant wire/cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01243309A true JPH01243309A (en) | 1989-09-28 |
Family
ID=13467232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63071669A Pending JPH01243309A (en) | 1988-03-24 | 1988-03-24 | Flame retardant wire/cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01243309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06283030A (en) * | 1993-03-25 | 1994-10-07 | Hitachi Cable Ltd | Nonflammable electric insulating composite and insulated wire |
| WO2006057120A1 (en) * | 2004-11-26 | 2006-06-01 | Sumitomo Electric Industries, Ltd. | Nonhalogen electric wire, electric wire bundle, and automobile wire harness |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211746A (en) * | 1985-07-10 | 1987-01-20 | Nippon Petrochem Co Ltd | Flame-retardant electrical material composition having excellent high-speed moldability |
| JPS62206705A (en) * | 1986-03-06 | 1987-09-11 | 住友電気工業株式会社 | Electrically insulated cable |
-
1988
- 1988-03-24 JP JP63071669A patent/JPH01243309A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211746A (en) * | 1985-07-10 | 1987-01-20 | Nippon Petrochem Co Ltd | Flame-retardant electrical material composition having excellent high-speed moldability |
| JPS62206705A (en) * | 1986-03-06 | 1987-09-11 | 住友電気工業株式会社 | Electrically insulated cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06283030A (en) * | 1993-03-25 | 1994-10-07 | Hitachi Cable Ltd | Nonflammable electric insulating composite and insulated wire |
| WO2006057120A1 (en) * | 2004-11-26 | 2006-06-01 | Sumitomo Electric Industries, Ltd. | Nonhalogen electric wire, electric wire bundle, and automobile wire harness |
| JP2006179452A (en) * | 2004-11-26 | 2006-07-06 | Sumitomo Electric Ind Ltd | Nonhalogen electric wire, electric wire bundle, and automobile wire harness |
| US8063308B2 (en) | 2004-11-26 | 2011-11-22 | Sumitomo Electric Industries, Ltd. | Halogen free electric wire, wire bundle, and automotive wiring harness |
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