JPH01307107A - Flame resisting electrical insulating composition - Google Patents
Flame resisting electrical insulating compositionInfo
- Publication number
- JPH01307107A JPH01307107A JP63136071A JP13607188A JPH01307107A JP H01307107 A JPH01307107 A JP H01307107A JP 63136071 A JP63136071 A JP 63136071A JP 13607188 A JP13607188 A JP 13607188A JP H01307107 A JPH01307107 A JP H01307107A
- Authority
- JP
- Japan
- Prior art keywords
- cobalt
- parts
- flame
- electrical insulating
- inorganic
- 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
- 239000000203 mixture Substances 0.000 title claims description 8
- 239000010941 cobalt Substances 0.000 claims abstract description 12
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 12
- 150000001869 cobalt compounds Chemical class 0.000 claims abstract description 12
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000531 Co alloy Inorganic materials 0.000 claims abstract description 9
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- 229920000098 polyolefin Polymers 0.000 claims abstract description 9
- 239000012796 inorganic flame retardant Substances 0.000 claims description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- 238000010292 electrical insulation Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 229910052736 halogen Inorganic materials 0.000 abstract description 6
- 150000002367 halogens Chemical class 0.000 abstract description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000920 calcium hydroxide Substances 0.000 abstract description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract description 2
- 239000001095 magnesium carbonate Substances 0.000 abstract description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene, ethylene vinyl acetate Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- OMAWWKIPXLIPDE-UHFFFAOYSA-N (ethyldiselanyl)ethane Chemical compound CC[Se][Se]CC OMAWWKIPXLIPDE-UHFFFAOYSA-N 0.000 description 1
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-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
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- BDVUYXNQWZQBBN-UHFFFAOYSA-N [Co].[Zr].[Nb] Chemical compound [Co].[Zr].[Nb] BDVUYXNQWZQBBN-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- 229910021446 cobalt carbonate Inorganic materials 0.000 description 1
- DZUDZSQDKOESQQ-UHFFFAOYSA-N cobalt hydrogen peroxide Chemical compound [Co].OO DZUDZSQDKOESQQ-UHFFFAOYSA-N 0.000 description 1
- NVIVJPRCKQTWLY-UHFFFAOYSA-N cobalt nickel Chemical compound [Co][Ni][Co] NVIVJPRCKQTWLY-UHFFFAOYSA-N 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- NNSIWZRTNZEWMS-UHFFFAOYSA-N cobalt titanium Chemical compound [Ti].[Co] NNSIWZRTNZEWMS-UHFFFAOYSA-N 0.000 description 1
- ZOTKGJBKKKVBJZ-UHFFFAOYSA-L cobalt(2+);carbonate Chemical compound [Co+2].[O-]C([O-])=O ZOTKGJBKKKVBJZ-UHFFFAOYSA-L 0.000 description 1
- MULYSYXKGICWJF-UHFFFAOYSA-L cobalt(2+);oxalate Chemical compound [Co+2].[O-]C(=O)C([O-])=O MULYSYXKGICWJF-UHFFFAOYSA-L 0.000 description 1
- LFSBSHDDAGNCTM-UHFFFAOYSA-N cobalt(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Co+2] LFSBSHDDAGNCTM-UHFFFAOYSA-N 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- DZCCLNYLUGNUKQ-UHFFFAOYSA-N n-(4-nitrosophenyl)hydroxylamine Chemical compound ONC1=CC=C(N=O)C=C1 DZCCLNYLUGNUKQ-UHFFFAOYSA-N 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、燃焼時に有毒なハロゲン系ガスを発生しない
□難燃性電気絶縁組成物、特に、電線・ケーブルの絶縁
材料やシース材料への適用に好適な難燃性電気絶縁組成
物に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to flame-retardant electrical insulation compositions that do not generate toxic halogen gases when burned, particularly for use in insulating materials and sheath materials for electric wires and cables. The present invention relates to flame retardant electrical insulation compositions suitable for application.
［従来の技術］° ”
電線・ケーブルの絶縁材料やシース材料としては電気絶
縁性に優れたポリオレフィンが多く用いられてきている
。最近の趨勢として原子力発電所用電線・ケーブル、車
両用電線・ケーブル、船舶用電線・ケーブルに垂直トレ
イ燃焼試験レベルの高度の難燃性が要望されるようにな
ってきた。[Prior art] ° ” Polyolefins, which have excellent electrical insulation properties, are often used as insulating materials and sheath materials for electric wires and cables.Recent trends include electric wires and cables for nuclear power plants, electric wires and cables for vehicles, There is a growing demand for high flame retardancy for marine electrical wires and cables, equivalent to the level of vertical tray combustion tests.
ポリオレフィンを難燃化する方法としてはハロゲン含有
化合物等を混和する方法が一般に採用されてきている。As a method of making polyolefin flame retardant, a method of incorporating a halogen-containing compound or the like has generally been adopted.
しかし、これらは燃焼時多量の煙を発生し、機器への腐
食性、人体への有毒性等が問題になっている。特に、最
近は安全面からこの様なハロゲン系ガスを発生しないこ
とが要望されるようになってきている。However, these produce a large amount of smoke when burned, causing problems such as corrosiveness to equipment and toxicity to the human body. In particular, recently there has been a demand for not generating such halogen-based gases from the standpoint of safety.
このような情勢を踏まえ、発煙性、有毒性の非常に少な
い無機系難燃剤が注目されるようになってきた。In light of this situation, inorganic flame retardants with extremely low smoke generation and toxicity have been attracting attention.
［発明が解決しようとする課ＷＪ］
しかし、無機系難燃剤は難燃効果が小さいため、単にポ
リマーに混和しただけでは燃焼時に溶融滴下するという
ドリップ現象がみられ、高度の難燃性を付与することは
難しい。なお、高度の難燃性を付与するためには無機系
難燃剤を多量加えるｍ；とも有効であるが、得られる絶
縁体やシースの引張特性の低下を招いたり、押出加工性
が低下するという問題がある。[Problem WJ that the invention seeks to solve] However, since inorganic flame retardants have a small flame retardant effect, simply mixing them with polymers causes a drip phenomenon in which they melt and drip during combustion, giving them a high degree of flame retardancy. It's difficult to do. It is also effective to add a large amount of inorganic flame retardant to impart a high degree of flame retardancy, but this may result in a decrease in the tensile properties of the resulting insulator or sheath, and a decrease in extrusion processability. There's a problem.
本発明は上記に基いてなされたものであり、垂直トレイ
燃焼試験レベルに合格する高度の難燃性を付与できると
共に有毒なハロゲン系ガスを発生しない難燃性電気絶縁
組成物の提供を目的とするものである。The present invention has been made based on the above, and aims to provide a flame-retardant electrical insulating composition that can impart a high degree of flame retardancy that passes the vertical tray combustion test level and does not generate toxic halogen gases. It is something to do.
［課題を解決するための手段］
本発明の難燃性電気絶縁組成物は、ポリオレフィン１０
０重量部に対して無機系難燃剤５０〜３００重量部およ
びコバルト、コバルト合金又はコバルト化合物０．５重
量部以上を含有するものである。[Means for Solving the Problems] The flame retardant electrical insulation composition of the present invention comprises polyolefin 10
It contains 50 to 300 parts by weight of an inorganic flame retardant and 0.5 parts by weight or more of cobalt, a cobalt alloy, or a cobalt compound based on 0 parts by weight.
本発明において、ポリオレフィンとしては、エチレンプ
ロピレンコポリマー、エチレンプロピレンジェンターポ
リマー、ポリエチレン、エチレン酢酸ビニルコポリマー
、エチレンエチルアクリレートコポリマー、エチレンブ
テンコポリマー、エチレンブテンジェンターポリマーと
いったものがあげられ、これらは単独使用または２種以
上の併用が可能である。In the present invention, examples of the polyolefin include ethylene propylene copolymer, ethylene propylene terpolymer, polyethylene, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene butene copolymer, and ethylene butene terpolymer, which may be used alone or in combination. A combination of the above is possible.
無機系難燃剤としては、水酸化アルミニウム、水酸化マ
グネシウム、塩基性炭酸マグネシウム、水酸化カルシウ
ム、ハイドロタルサイト類等があげられる。無機系難燃
剤の含有量は、ポリオレフィン１００重量部に対して５
０〜３００重量部の範囲とする必要があり、５０重量部
未満では目的とする難燃性を付与できず、３００重量部
を越えると加工性が著しく低下して押出成形が困難にな
る。Examples of inorganic flame retardants include aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, calcium hydroxide, and hydrotalcites. The content of inorganic flame retardant is 5 parts by weight per 100 parts by weight of polyolefin.
The amount must be in the range of 0 to 300 parts by weight; if it is less than 50 parts by weight, the desired flame retardance cannot be imparted, and if it exceeds 300 parts by weight, the processability is markedly reduced and extrusion molding becomes difficult.
本発明において、無機系難燃剤に加えてコバルト、コバ
ルト合金又はコバルト化合物を使用することにより、燃
焼時のドリップを防止でき、難燃性を大幅に向上できる
。In the present invention, by using cobalt, a cobalt alloy, or a cobalt compound in addition to an inorganic flame retardant, dripping during combustion can be prevented and flame retardancy can be significantly improved.
コバルト合金としては、コバルト・ニッケル合金、コバ
ルト・チタニウム合金、コバルト・ジルコニウム・ニオ
ビウム合金等があげられ、コバルト化合物としては、無
機、有機のいずれでもよく、無機コバルト化合物として
は、−酸化コバルト、三二酸化コバルト、四三酸化コバ
ルト、コバルトフェライト、チタン酸コバルト、タング
ステン酸コバルト、炭酸コバルト、珪化コバルト、水酸
化コバルト等があげられ、有機コバルト化合物としては
、酢酸コバルト、シュウ酸コバルト、ジ−ミープロポキ
シコバルト等といったものがあげられる。Cobalt alloys include cobalt-nickel alloys, cobalt-titanium alloys, cobalt-zirconium-niobium alloys, etc. Cobalt compounds may be either inorganic or organic, and inorganic cobalt compounds include -cobalt oxide, tri-cobalt Examples include cobalt dioxide, tricobalt tetroxide, cobalt ferrite, cobalt titanate, cobalt tungstate, cobalt carbonate, cobalt silicide, and cobalt hydroxide. Examples of organic cobalt compounds include cobalt acetate, cobalt oxalate, and dipropoxy. Examples include things such as cobalt.
本発明において、コバルト、コバルト合金又はコバルト
化合物は、ポリオレフィン１００重量部に対して０．５
重量部以上配合する必要があり、０．５重量部未満では
燃焼時のドリップを防止できず、難燃性が不充分となる
。In the present invention, the amount of cobalt, cobalt alloy or cobalt compound is 0.5 parts by weight per 100 parts by weight of polyolefin.
It is necessary to mix more than 0.5 parts by weight, and if it is less than 0.5 parts by weight, it will not be possible to prevent dripping during combustion, resulting in insufficient flame retardancy.
本発明においては、上記成分に加えて架橋剤、酸化防止
剤、滑剤、軟化剤、分散剤等を適宜添加してもよい。架
橋剤としては、ジクミルパーオキサイド、３−ビス（ｔ
−ブチルパーオキシイソプロビル）ベンゼンに代表され
る有機過酸化物が適切であり、これに架橋助剤として、
硫黄、エチレンジメタアクリレート、ジアリルフタレー
ト、ｐ−キノンジオキシム等を併用してもよい。また、
電子線等の電離性放射線による架橋の場合は、架橋助剤
として、トリメチロールプロパントリメリテート、トリ
アリルイソシアヌレート等の反応性のモノマを添加する
のが一般的である。酸化防止剤としては、フェニル−α
−ナフチルアミン、Ｎ。In the present invention, in addition to the above components, crosslinking agents, antioxidants, lubricants, softeners, dispersants, etc. may be added as appropriate. As a crosslinking agent, dicumyl peroxide, 3-bis(t
-butylperoxyisopropyl)benzene is suitable, and as a crosslinking agent,
Sulfur, ethylene dimethacrylate, diallyl phthalate, p-quinone dioxime, etc. may be used in combination. Also,
In the case of crosslinking using ionizing radiation such as an electron beam, a reactive monomer such as trimethylolpropane trimellitate or triallyl isocyanurate is generally added as a crosslinking aid. As an antioxidant, phenyl-α
- Naphthylamine, N.
Ｎ゛−ジ−β−ナフチル−ｐ−フ二二レンジアミン等の
アミン系酸化防止剤、２．６−ジーｔ−ブチル−４−メ
チルフェノール、ヒンダードフェノール等のフェノール
系酸化防止剤があげられる。Amine-based antioxidants such as N゛-di-β-naphthyl-p-phinylene diamine, phenolic antioxidants such as 2,6-di-t-butyl-4-methylphenol, hindered phenol, etc. It will be done.
［実 施 例］
第１表に示すような配合にしたがって各種成分を１００
℃に保持された６インチロールに投入してロール混練を
行い、混練後１２０℃に保持された４０ｍ／ｍ押出機（
Ｌ／Ｄ−２５）を用い、外径５．３■の絶縁心線を３本
撚合わせた外周に２．０ｍｍの厚さで押出成田した。な
お、実施例１゜４．５および比較例１については押出波
頂に続いて１３ｋｇ／ｃ−の水蒸気雰囲気中に３分間保
持して架橋した。[Example] Various ingredients were mixed into 100% according to the formulation shown in Table 1.
The mixture was put into a 6-inch roll kept at 120°C for roll kneading.
L/D-25) was used to extrude three twisted insulated core wires each having an outer diameter of 5.3 cm to a thickness of 2.0 mm. In Example 1°4.5 and Comparative Example 1, crosslinking was carried out by holding in a steam atmosphere of 13 kg/c- for 3 minutes following the extrusion wave crest.
各側で作製したケーブルについての評価結果−は第１表
の下欄に示した通りである。The evaluation results for the cables produced on each side are as shown in the lower column of Table 1.
なお、難燃性評価は次に基いて行った。長さ２ｍのケー
ブルを垂直に８本並べ、下から７万８ＴＵの炎を２０分
間当て、自己消炎すれば合格であり、自己消炎せず全焼
するものは不合格である。In addition, flame retardancy evaluation was performed based on the following. Eight cables with a length of 2 m are lined up vertically and a 70,8TU flame is applied from below for 20 minutes. If the flame self-extinguishes, it passes; if it burns out without self-extinguishing, it fails.
第１表からも明らかな通り、本発明に係わる実施例１〜
７ではいずれも難燃性に合格し、押出加工性に優れてい
る。これに対し無機系難燃剤の含有量が規定値以下の比
較例１では難燃性が不合格であり、規定値以上の比較例
２では押出性が悪く成形不可能であった。また、コバル
ト、コバルト合金あるいは無機コバルト化合物または有
機コバルト化合物の含有量が規定値以下の比較例３〜６
はドリップが生じて難燃性が不合格となる。As is clear from Table 1, Examples 1 to 1 according to the present invention
All samples with a rating of 7 passed the flame retardant test and were excellent in extrusion processability. On the other hand, in Comparative Example 1 in which the content of the inorganic flame retardant was below the specified value, the flame retardance was rejected, and in Comparative Example 2, in which the content of the inorganic flame retardant was above the specified value, the extrudability was poor and molding was impossible. In addition, Comparative Examples 3 to 6 in which the content of cobalt, cobalt alloy, inorganic cobalt compound, or organic cobalt compound is below the specified value
Drips occur and the flame retardancy is rejected.
［発明の効果］
以上説明してきた通り、本発明は難撚剤として無機系難
燃剤とコバルト、コバルト合金又はコバルト化合物とを
併用したものであり、良好な押出加工性を維持しながら
燃焼時のドリップを防止して高度の難燃性を付与でき、
しかも燃焼時に有毒なハロゲン系ガスを発生しない電気
絶縁物が得られるようになる。[Effects of the Invention] As explained above, the present invention uses an inorganic flame retardant and cobalt, a cobalt alloy, or a cobalt compound together as a twist retardant. It can prevent drips and provide a high degree of flame retardancy.
Moreover, it becomes possible to obtain an electrical insulator that does not generate toxic halogen gases when burned.
Claims (1)
５０〜３００重量部およびコバルト、コバルト合金又は
コバルト化合物０．５重量部以上を含有することを特徴
とする難燃性電気絶縁組成物。1. A flame-retardant electrical insulation composition containing 50 to 300 parts by weight of an inorganic flame retardant and 0.5 parts by weight or more of cobalt, a cobalt alloy, or a cobalt compound based on 100 parts by weight of polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63136071A JPH01307107A (en) | 1988-06-02 | 1988-06-02 | Flame resisting electrical insulating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63136071A JPH01307107A (en) | 1988-06-02 | 1988-06-02 | Flame resisting electrical insulating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01307107A true JPH01307107A (en) | 1989-12-12 |
Family
ID=15166544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63136071A Pending JPH01307107A (en) | 1988-06-02 | 1988-06-02 | Flame resisting electrical insulating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01307107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125155C (en) * | 1999-08-11 | 2003-10-22 | 泰兴市车辆特种材料厂 | Heat isolating damping glue |
-
1988
- 1988-06-02 JP JP63136071A patent/JPH01307107A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125155C (en) * | 1999-08-11 | 2003-10-22 | 泰兴市车辆特种材料厂 | Heat isolating damping glue |
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