JPH0196254A - Flame-retardant electrical insulating composition - Google Patents
Flame-retardant electrical insulating compositionInfo
- Publication number
- JPH0196254A JPH0196254A JP25501687A JP25501687A JPH0196254A JP H0196254 A JPH0196254 A JP H0196254A JP 25501687 A JP25501687 A JP 25501687A JP 25501687 A JP25501687 A JP 25501687A JP H0196254 A JPH0196254 A JP H0196254A
- Authority
- JP
- Japan
- Prior art keywords
- metal hydroxide
- alumina
- rubber
- resin
- flame
- 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 abstract 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 title claims description 7
- 239000003063 flame retardant Substances 0.000 title claims description 7
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 24
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000005060 rubber Substances 0.000 claims abstract description 14
- 238000010292 electrical insulation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- -1 polyethylene Polymers 0.000 abstract description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000011354 acetal resin Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 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
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
し産業上の利用分野］
本発明は、吸水や吸湿による電気的特性の低下を抑制で
きる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] Field of Industrial Application] The present invention provides a flame-retardant electrical insulating composition that can suppress deterioration of electrical properties due to water absorption and moisture absorption, 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、ポリ
エチレン、エチレンプロピレンゴム、ポリ塩化ビニルお
よびクロロプレンゴム等の樹脂またはゴムが多用されて
いる。[Prior Art] Resins or rubbers such as polyethylene, ethylene propylene rubber, polyvinyl chloride, and chloroprene rubber are often used as insulation materials and sheath materials for electric wires and cables.
最゛近の趨勢として原子力発電所用電線・ケーブル、盤
内、機内配線用電線に難燃性が強く要望されるようにな
ってきた。As a recent trend, there has been a strong demand for flame retardancy for electric wires and cables used in nuclear power plants, and electric wires for wiring inside panels and inside machines.
樹脂またはゴムの難燃化あるいは難燃性向上のための１
つとして、金属水酸化物を混和する技術が注目されるよ
うになってきた。1 for making resin or rubber flame retardant or improving flame retardancy
As one example, technology that incorporates metal hydroxides has been attracting attention.
［発明が解決しようとする問題点］
しかし、金属水酸化物は吸水、吸湿をしやすく、電気的
特性の低下を招くという問題がある。[Problems to be Solved by the Invention] However, metal hydroxides tend to absorb water and moisture, leading to a decrease in electrical characteristics.
本発明は、金属水酸化物の吸水、吸湿を抑制することに
より電気的特性の低下を防止できる難燃性電気絶縁組成
物の提供を目的とするものである。An object of the present invention is to provide a flame-retardant electrical insulating composition that can prevent deterioration of electrical properties by suppressing water absorption and moisture absorption of metal hydroxides.
［問題点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、樹脂またはゴムに、
平均粒径５０μｍ以下の金属水酸化物に平均粒径が当該
金属水酸化物の１０分の１以下のアルミナを固定化処理
してなるものを混和してなることを特徴とするものであ
る。[Means for solving the problems] The flame-retardant electrical insulation composition of the present invention comprises resin or rubber,
It is characterized in that it is made by mixing a metal hydroxide with an average particle size of 50 μm or less with immobilized alumina having an average particle size of 1/10 or less of the metal hydroxide.
本発明において、固定化処理とは、金属水酸化物とアル
ミナとをミルにより撹拌し、その後微粉砕機等の衝撃力
、摩擦力を利用して金属水酸化物表面にアルミナをメカ
ノケミカルにより結合させ固定化することをいう。この
ような固定化処理により金属水酸化物同士の凝集を抑え
ることができ、しかも水に不活性なアルミナで固定化処
理することにより耐水性が著しく改善されることが見い
出された。In the present invention, immobilization treatment refers to stirring metal hydroxide and alumina in a mill, and then mechanochemically bonding alumina to the surface of the metal hydroxide using the impact force and frictional force of a pulverizer, etc. It means to make it fixed. It has been discovered that such immobilization treatment can suppress agglomeration of metal hydroxides, and that water resistance can be significantly improved by immobilization treatment with alumina, which is inert to water.
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、塩基性炭酸マグネシウム、水酸化カルシウ
ム、水酸化バリウム、ハイドロタルサイト等があげられ
る。金属水酸化物の平均粒径は５０μｍ以下であること
が必要で、これを越えると固定化処理が困難になる。Examples of metal hydroxides include aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, calcium hydroxide, barium hydroxide, and hydrotalcite. The average particle size of the metal hydroxide must be 50 μm or less; if it exceeds this, immobilization becomes difficult.
アルミナとしては、α型、γ型があり、これらの平均粒
径は金属水酸化物の１０分の１以下であることが必要で
あり、これを越えると固定化処理が困難になる。There are α-type and γ-type alumina, and the average particle size of these must be one-tenth or less of that of metal hydroxide, and if this is exceeded, immobilization becomes difficult.
上記のようにして得た固定化処理したものは、樹脂また
はゴムに混和されるが、樹脂としては、ポリエチレン、
ポリプロピレン、ポリブテン−１１エチレン−酢酸ビニ
ルコポリマ、エチレンエチルアクリレートコポリマ、エ
チレンメチルアクリレートコポリマ、エチレンブテン−
１コポリマ、エチレンブテン−ｌターポリマ等のポリオ
レフィン、ナイロン６、ナイロン１１．ナイロン１２、
ナイロン６１０等のポリアミド樹脂、ポリテトラフルオ
ロエチレン、ポリクロロトリフルオロエチレン、テトラ
フルオロエチレンへキサフルオロプロピレン共重合体、
テトラフルオロエチレンパーフルオロビニルエーテル共
重合体、エチレンフルオロエチレン共重合体、ポリぷり
化ビニル、ポリぶつ化ビニリデン等のふっ素樹脂、塩化
ビニル樹脂、塩化ヒニリデン樹脂、塩素化ポリエチレン
樹脂、ポリスチレン樹脂、ポリメチルメタクリレート樹
脂、フェノール樹脂、アクリロニトリルブタジェンスチ
レン樹脂等があげられる。さらには、ポリカーボネート
、アセタール樹脂、エポキシ樹脂、ポリエステル、ポリ
フェニレンオキサイド、ポリイミド、ポリアミドイミド
、ボリアリレート、ポリエーテルエーテルケトン等のエ
ンジニアリングプラスチックも使用可能である。The immobilized product obtained as described above is mixed with resin or rubber, but resins such as polyethylene,
Polypropylene, polybutene-11 ethylene-vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene methyl acrylate copolymer, ethylene butene-
1 copolymers, polyolefins such as ethylene butene-1 terpolymers, nylon 6, nylon 11. nylon 12,
Polyamide resins such as nylon 610, polytetrafluoroethylene, polychlorotrifluoroethylene, tetrafluoroethylene hexafluoropropylene copolymers,
Fluororesins such as tetrafluoroethylene perfluorovinyl ether copolymer, ethylene fluoroethylene copolymer, polyvinyl purinide, polyvinylidene butylene, vinyl chloride resin, hnylidene chloride resin, chlorinated polyethylene resin, polystyrene resin, polymethyl methacrylate resin, phenol resin, acrylonitrile butadiene styrene resin, etc. Furthermore, engineering plastics such as polycarbonate, acetal resin, epoxy resin, polyester, polyphenylene oxide, polyimide, polyamideimide, polyarylate, and polyetheretherketone can also be used.
また、ゴムとしては、エチレンプロピレンゴム、スチレ
ンブタジェンゴム、ブチルゴム、天然ゴム、クロロプレ
ンゴム、クロロスルホン化ポリエチレン、ニトリルゴム
、エビクロヒドリンゴム、シリコーンゴム、ふっ素ゴム
、ウレタンゴム、ノルボーネンゴム等があげられる。さ
らに、オレフィン系、スチレン系、ふっ素糸、ウレタン
系、エステル系、アミド系、塩化ビニル系の熱可塑性エ
ラストマといったものもあげられる。Rubbers include ethylene propylene rubber, styrene butadiene rubber, butyl rubber, natural rubber, chloroprene rubber, chlorosulfonated polyethylene, nitrile rubber, evichlorohydrin rubber, silicone rubber, fluoro rubber, urethane rubber, norbornene rubber, etc. can give. Further examples include olefin-based, styrene-based, fluorine thread, urethane-based, ester-based, amide-based, and vinyl chloride-based thermoplastic elastomers.
これらの樹脂またはゴムは単独使用でも２種以上の併用
でもよく、また、性状は粉末、液状、ペレット、バルク
、ブロック状のいずれでもよい。These resins or rubbers may be used alone or in combination of two or more, and may be in the form of powder, liquid, pellet, bulk, or block.
樹脂またはゴムに対する固定化処理したものの混和量は
特に限定されないが、難燃性向上に著しい効果が見られ
るためには、金属水酸化物換算で５０重量部以上混和す
ることが望ましい。The amount of the immobilized material mixed into the resin or rubber is not particularly limited, but in order to have a significant effect on improving flame retardancy, it is desirable to mix it in an amount of 50 parts by weight or more in terms of metal hydroxide.
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、分散剤等を適宜使用してもよい。In the present invention, in addition to the above components, crosslinking agents, antioxidants, lubricants, softeners, dispersants, etc. may be used as appropriate.
［発明の実施例］
第１表に示すような配合割合に従って各種成分を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°Ｃに保持された４０ｍ／ｍ押出機
（Ｌ／Ｄ＝２５）を用い、外径２．０ｍｍの銅線上に厚
さ１．０ｍｍに押出被覆して絶縁電線を製造した。なお
、実施例１〜４および比較例１〜３については押出被覆
に続いて１３ｋｇ／ｃｍ２の水蒸気雰囲気中に３分間保
持して架橋絶縁電線を製造した。[Example of the invention] Various ingredients were mixed into 100% according to the blending ratios shown in Table 1.
The mixture was put into a 6-inch roll kept at 120°C and kneaded by rolls. An insulated wire was manufactured by extrusion coating to a thickness of 1.0 mm. In addition, for Examples 1 to 4 and Comparative Examples 1 to 3, crosslinked insulated wires were produced by holding in a steam atmosphere of 13 kg/cm<2> for 3 minutes following extrusion coating.
アルミナの金属水酸化物への固定化処理には、奈良機械
製作所（株）の○〜１ダイザｌＯおよびハイブリダイザ
ｌを用い、ＯＭダイザｌＯにより金属水酸化物とアルミ
ナを１０分間撹拌して金属水酸化物表面にアルミナを付
着させ、その後ハイブリダイザｌで６分間処理して固定
化した。For fixing alumina to metal hydroxide, use ○~1 Daiza 1O and Hybridizer 1 from Nara Kikai Seisakusho Co., Ltd., and stir the metal hydroxide and alumina for 10 minutes with OM Diza 1O to fix metal hydroxide. Alumina was attached to the oxide surface, and then treated with hybridizer I for 6 minutes to be fixed.
実施例および比較例の絶縁電線の絶縁抵抗と難燃性につ
いて評価した結果を第１表の下欄に示す。The results of evaluating the insulation resistance and flame retardance of the insulated wires of Examples and Comparative Examples are shown in the lower column of Table 1.
なお、評価は次に基いて行った。The evaluation was based on the following.
難燃性： ＪＩＳＣ３００４に基づき、水平に保った絶
縁電線をバーナで燃焼後、１分以内に消えれば合格であ
り、１分以上燃えるものは不合格である。Flame retardancy: Based on JISC3004, if the insulated wire held horizontally is burned in a burner, it passes if it disappears within 1 minute, and if it burns for more than 1 minute, it is rejected.
絶縁抵抗：各試料を８０°Ｃて２４時間乾燥し、その後
７５°Ｃの水中に１力月放置したものについて、ＪＩＳ
Ｃ３００４に基いて測定した。Insulation resistance: JIS
Measured based on C3004.
＊ｌ ムー二粘度ＭＬ、４．（ｔｏｏｏＣ）４０、エチ
レン量７０ｍｏ１％、プロピレン量３０ ｍ ｏ １％
＊２ムー二粘度ＭＬ、、（１００℃）３５、エチレン量
７０ｍｏ１％、プロピレン量２９ ｍ ｏ １％、エチ
リデンノルボーネン量１ ｍｏ１％
＊３メルトインデックス（１９０°Ｃ） １．５、酢酸
ビニル含有量１２重量％
＊４メルトインデックス（１９０°Ｃ） １．５、エチ
ルアクリレート含有量１９重量％
＊５平均粒径２μｍの水酸化アルミニウム／平均粒径０
．２μｍのγ型アルミナ＝８０／２０の割合で固定化処
理
＊６平均粒径１μｍ１無処理
＊７平均粒径４μｍの水酸化マグネシウム／平均粒径０
．４μｍのγ型アルミナ＝ ７０／３０の割合で固定化
処理
＊８平均粒径１μｍの水酸化マグネシウム／平均粒径０
．０５μｍのγ型アルミナ＝９０／１０の割合で固定化
処理
＊９平均粒径０．４μｍ１無処理
第１表から明らかな通り、本発明に係る実施例１〜６で
はいずれも難燃性試験に合格し、１力月間の浸水におい
ても良好な絶縁抵抗を示している。これに対し、金属水
酸化物を混和しない比較例１では難燃性が不合格であり
、固定化処理を行っていない金属水酸化物を用いた比較
例２および３では絶縁抵抗の低下が著しい。*l Mouni viscosity ML, 4. (tooooC) 40, ethylene amount 70 mo 1%, propylene amount 30 mo 1%
*2 Mouni viscosity ML, (100°C) 35, ethylene content 70mo1%, propylene content 29mo1%, ethylidenenorbornene content 1mo1% *3 Melt index (190°C) 1.5, vinyl acetate content Amount 12% by weight *4 Melt index (190°C) 1.5, ethyl acrylate content 19% by weight *5 Aluminum hydroxide with average particle size 2 μm/average particle size 0
．． 2 μm γ-type alumina = immobilization treatment at a ratio of 80/20 *6 Average particle size 1 μm 1 No treatment *7 Magnesium hydroxide with average particle size 4 μm / Average particle size 0
．． 4 μm γ-type alumina = immobilization treatment at a ratio of 70/30 *8 Magnesium hydroxide with an average particle size of 1 μm/average particle size 0
．． 05 μm γ-type alumina = immobilization treatment at a ratio of 90/10 *9 Average particle size 0.4 μm 1 No treatment As is clear from Table 1, Examples 1 to 6 according to the present invention did not pass the flame retardancy test. It passed the test and showed good insulation resistance even after being submerged in water for one month. On the other hand, in Comparative Example 1, in which no metal hydroxide was mixed, the flame retardance was rejected, and in Comparative Examples 2 and 3, in which metal hydroxide was not immobilized, the insulation resistance decreased significantly. .
［発明の効果］
以上説明してきた通り、本発明は樹脂またはゴムに、金
属水酸化物にアルミナを固定化処理したものを混和する
ものであり、難燃性に優れ、しかも吸水、吸湿による電
気特性の低下を抑制することが可能となる。[Effects of the Invention] As explained above, the present invention mixes a metal hydroxide with alumina fixed in resin or rubber, and has excellent flame retardancy, and also reduces electricity consumption due to water absorption and moisture absorption. It becomes possible to suppress deterioration of characteristics.
Claims (1)
水酸化物に平均粒径が当該金属水酸化物の１０分の１以
下のアルミナを固定化処理してなるものを混和してなる
ことを特徴とする難燃性電気絶縁組成物。(1) A resin or rubber mixed with a metal hydroxide with an average particle size of 50 μm or less and alumina whose average particle size is one-tenth or less of the metal hydroxide. A flame-retardant electrical insulation composition characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25501687A JPH0196254A (en) | 1987-10-09 | 1987-10-09 | Flame-retardant electrical insulating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25501687A JPH0196254A (en) | 1987-10-09 | 1987-10-09 | Flame-retardant electrical insulating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0196254A true JPH0196254A (en) | 1989-04-14 |
Family
ID=17273024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25501687A Pending JPH0196254A (en) | 1987-10-09 | 1987-10-09 | Flame-retardant electrical insulating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0196254A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408675B1 (en) * | 1999-12-29 | 2003-12-11 | 주식회사 포스코 | Device for repairing eroded portion of electric furnace wall |
| JP2008007536A (en) * | 2006-06-27 | 2008-01-17 | Toshiki Pigment Kk | Composite particle and cosmetic blended with this |
-
1987
- 1987-10-09 JP JP25501687A patent/JPH0196254A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408675B1 (en) * | 1999-12-29 | 2003-12-11 | 주식회사 포스코 | Device for repairing eroded portion of electric furnace wall |
| JP2008007536A (en) * | 2006-06-27 | 2008-01-17 | Toshiki Pigment Kk | Composite particle and cosmetic blended with this |
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