JPH0218433A - Flame retardant polyolefin composition - Google Patents
Flame retardant polyolefin compositionInfo
- Publication number
- JPH0218433A JPH0218433A JP16845088A JP16845088A JPH0218433A JP H0218433 A JPH0218433 A JP H0218433A JP 16845088 A JP16845088 A JP 16845088A JP 16845088 A JP16845088 A JP 16845088A JP H0218433 A JPH0218433 A JP H0218433A
- Authority
- JP
- Japan
- Prior art keywords
- flame retardant
- flame
- weight
- polyolefin composition
- parts
- 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
- 239000003063 flame retardant Substances 0.000 title claims abstract description 56
- 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 46
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 36
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 238000007765 extrusion coating Methods 0.000 abstract 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 238000010382 chemical cross-linking Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-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
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010292 electrical insulation Methods 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
- 229920005680 ethylene-methyl methacrylate copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- OCWMFVJKFWXKNZ-UHFFFAOYSA-L lead(2+);oxygen(2-);sulfate Chemical compound [O-2].[O-2].[O-2].[Pb+2].[Pb+2].[Pb+2].[Pb+2].[O-]S([O-])(=O)=O OCWMFVJKFWXKNZ-UHFFFAOYSA-L 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 206010042772 syncope Diseases 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は難燃性に優れたポリオレフィン組成物、更に詳
しくは電線、ケーブルの絶縁材料やシース材料への適用
に好適な高度に難燃化された難燃性ポリオレフィン組成
物に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention provides a polyolefin composition with excellent flame retardancy, more specifically a highly flame retardant polyolefin composition suitable for application to insulation materials and sheath materials for electric wires and cables. The present invention relates to a flame-retardant polyolefin composition.
（従来の技術）
ポリオレフィンはすぐれた電気絶縁性を持つ安価な樹脂
であり、放射線（例えば電子線）照射架橋あるいは化学
架橋を行うことで機械的強度、耐熱変形性などを容易に
向上することが可能であるため、機器内配線用の絶縁電
線の絶縁層若しくはシース層として広く用いられている
。(Prior art) Polyolefin is an inexpensive resin with excellent electrical insulation properties, and its mechanical strength, heat deformation resistance, etc. can be easily improved by crosslinking with radiation (e.g., electron beam) or chemical crosslinking. Therefore, it is widely used as an insulating layer or sheath layer of insulated wires for internal wiring in equipment.
しかしポリオレフィン自体は可燃性物質であり、近年、
前述の用途にポリオレフィンを適用する際には、安全、
防火上の問題からポリオレフィンに高度な難燃性を付与
する必要があった。その提案の一例をあげると、特開昭
５３−６０９４４号公報においては、ポリエチレン系重
合体に、含塩素難燃剤と含臭素難燃剤との特定比率の混
合物と、更に三酸化アンチモンを組み合わせた難燃剤を
使用することにより、高度の難燃性を得たポリオレフィ
ン組成物が示されている。また特開昭５３１４１３５３
号公報には、ポリオレフィン共重合体にハロゲン系難燃
剤あるいは含リン難燃剤と三酸化アンチモンと水酸化ア
ルミニウムの特定量を組み合わせた難燃性ポリオレフィ
ン組成物が示されている。However, polyolefin itself is a flammable material, and in recent years,
When applying polyolefins in the aforementioned applications, safety,
Due to fire protection issues, it was necessary to provide polyolefin with a high degree of flame retardancy. To give an example of such a proposal, Japanese Patent Application Laid-Open No. 53-60944 proposes a combination of a polyethylene polymer, a mixture of a chlorine-containing flame retardant and a bromine-containing flame retardant in a specific ratio, and antimony trioxide. Polyolefin compositions have been shown that have achieved a high degree of flame retardancy through the use of flame retardants. Also, Japanese Patent Publication No. 53141353
The publication discloses a flame-retardant polyolefin composition in which a polyolefin copolymer is combined with a halogen-based flame retardant or a phosphorus-containing flame retardant, and specific amounts of antimony trioxide and aluminum hydroxide.
（発明が解決しようとする課題）
難燃性ポリオレフィン組成物を導体上に押出し被覆し架
橋してなる難燃性ポリオレフィン電線を、前述の機器内
配線用の絶縁電線に用いる事を目的とすると、この難燃
性ポリオレフィン組成物は高度に難燃化された組成物で
なければならないとともに、耐熱性１機械的強度、電気
的性質及・び材料コストなどの高度のバランスが必要と
なるものである０例えば前述の特開昭５２’−６０９４
４号公報による難燃化技術においては確かに米国ＵＬ規
格サすジェクト７５８の垂直燃焼試験に合格する組成物
を得る事ができるが、得られた組成物の抗張力特性は米
国ＵＬ規格に定められた規格（１゜０５Ｋｇ／ｍｍ２）
に対してやや上まわる程度であり、抗張力のばらつきを
も考慮に入れると充分に満足すべきものとは言えない、
また前述の特開昭５３−１４１３５３号公報による難燃
化技術においては水酸化アルミニウムが多量に配合され
ており、特開昭６０−２５２６４６号公報の発明が解決
しようとする問題点の項にも記載されているとおり、一
般にポリオレフィンに水酸化アルミニウムを多量に配合
して得られた難燃性組成物は、引張特性、加工特性など
の悪化を招き、成形体の外観が不良となり易い欠点を有
している。(Problems to be Solved by the Invention) When the purpose is to use a flame-retardant polyolefin electric wire obtained by extruding and coating a conductor with a flame-retardant polyolefin composition and crosslinking the same as the insulated electric wire for internal wiring in equipment, This flame-retardant polyolefin composition must be highly flame-retardant, and must also have a high balance of heat resistance, mechanical strength, electrical properties, and material cost. 0 For example, the above-mentioned Japanese Patent Application Laid-Open No. 52'-6094
Although it is true that the flame retardant technology according to Publication No. 4 can be used to obtain a composition that passes the vertical combustion test of U.S. UL Standard Suggest 758, the tensile properties of the resulting composition are not as specified in the U.S. UL Standard. Standard (1゜05Kg/mm2)
However, it cannot be said that it is completely satisfactory, considering the variation in tensile strength.
In addition, the flame retardant technology disclosed in JP-A No. 53-141353 mentioned above contains a large amount of aluminum hydroxide, and the problem to be solved by the invention in JP-A No. 60-252646 is also included. As described above, flame-retardant compositions obtained by blending a large amount of aluminum hydroxide with polyolefin generally have the disadvantage of causing deterioration in tensile properties, processability, etc., and easily resulting in poor appearance of molded products. are doing.
この様に従来の難燃化方法をそのまま応用したのみでは
、不充分な難燃性しか得られなかったり、機械的強度が
低下したり、又は高価な難燃剤の多量配合による材料コ
ストの上昇をひきおこすなど、特性のバランスが取り難
い不都合があった。つまり従来の技術の範囲内では、ポ
リオレフィンベース樹脂に難燃剤を配合し高度な難燃特
性を得ようとすると、その他の機械的特性や耐熱性とい
った特性とのバランスを失いやすく、それ故ベース樹脂
に関してはＩＳ械的強度や耐熱性に優れ、それ自体が難
燃剤の配合により、より難燃化しやすい性質を持つもの
を、難燃剤に関してはより少量で効果のある組み合わせ
を見出さなければならなかった。In this way, if conventional flame retardant methods are simply applied, insufficient flame retardancy may be obtained, mechanical strength may decrease, or material costs may increase due to the combination of large amounts of expensive flame retardants. It had the disadvantage that it was difficult to balance the characteristics, such as causing a stir. In other words, within the scope of conventional technology, when trying to obtain advanced flame retardant properties by blending flame retardants into polyolefin base resins, it is easy to lose the balance with other properties such as mechanical properties and heat resistance, and therefore the base resin For IS, we had to find a material that has excellent mechanical strength and heat resistance, and which itself has properties that make it easier to make it flame retardant by adding flame retardants.As for flame retardants, we had to find a combination that would be effective with a smaller amount. .
（課題を解決するための手段）
本発明者らは前述の課題を解決するために安価で押出被
覆の容易なポリオレフィンの難燃特性を他の緒特性との
バランスを取りつつ、しかも材料コストの大幅な上昇を
もたらさずに向上させるため種々検討した結果、 酢酸
ビニル成分を４０重量％以下含んでなるポリオレフィン
組成物１００重量部に対し、ハロゲン系有機難燃剤５〜
８０重敗部、難燃助剤３〜５０重量部、水酸化マグネラ
ム３〜１００重量部を配合することにより、ポリオレフ
ィン組成物の難燃特性を他の緒特性とのバランスを取れ
た難燃性ポリオレフィン組成物を見い出し、本発明を完
成するに至った。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present inventors have balanced the flame retardant properties of polyolefin, which is inexpensive and easy to extrude coat, with other properties, while reducing material costs. As a result of various studies to improve the improvement without causing a significant increase, we found that 5 to 5 parts by weight of a halogenated organic flame retardant was added to 100 parts by weight of a polyolefin composition containing 40% by weight or less of a vinyl acetate component.
By blending 80 parts by weight, 3 to 50 parts by weight of a flame retardant aid, and 3 to 100 parts by weight of magnesium hydroxide, the flame retardant property of the polyolefin composition is balanced with other properties. They discovered a polyolefin composition and completed the present invention.
本発明は、ポリオレフィン組成物の酢酸ビニル成分含有
量が４０重量′！≦を超えると、難燃特性は十分である
が組成物の体積抵抗率が著しく低下し好ましくない。In the present invention, the vinyl acetate component content of the polyolefin composition is 40% by weight! If it exceeds ≦, the flame retardant properties will be sufficient, but the volume resistivity of the composition will drop significantly, which is not preferable.
本発明のポリオレフィン組成物は、ポリエチレン。The polyolefin composition of the present invention is polyethylene.
ポリプロピレン、エチレン酢酸ビニル共重合体。Polypropylene, ethylene vinyl acetate copolymer.
エチレンプロピレン系エラストマー、エチレン−エチル
アクリレート共重合体、エチレン−メチルアクリレート
共重合体、エチレン−メチルメタクリレート共重合体、
これらを主成分とした三元共重合体、グラフト共重合体
、ブロック共重合体が主として用いられる。Ethylene propylene elastomer, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-methyl methacrylate copolymer,
Ternary copolymers, graft copolymers, and block copolymers containing these as main components are mainly used.
本発明のハロゲン系有機難燃剤としては、一般に市販さ
れているものがそ０まま用いられ、パークロルペンタシ
クロデカン、ドデカクロロオクタヒドロジメタノジベン
ゾシクロオクテン、ドデカクロロオクタヒドロジメタノ
ジベンゾフランの塩素系有機難燃剤、デカブロモフェノ
キシベンゼンテトラデカブロモｐ−フェノキシジフェニ
ルエーテル、ヘキサブロムシクロドデカンの臭素系有機
難燃剤が用いられ、好ましくは、比較的少量で高い難燃
効果を得られる臭素系有機難燃剤が用いられる。使用量
としてはポリオレフィン組成物１００重量部に対して５
〜８０重量部である。５重量部未満では難燃性が不充分
であり、８０重量部を超えるとａ械的強度の低下、ブル
ーミング現象などがおこり好ましくないうえにコストア
ップにもなる。As the halogen-based organic flame retardant of the present invention, commonly commercially available ones are used as is, and chlorine-based flame retardants such as perchlorpentacyclodecane, dodecachlorooctahydrodimethanodibenzocyclooctene, and dodecachlorooctahydrodimethanodibenzofuran are used. Organic flame retardants, brominated organic flame retardants such as decabromophenoxybenzenetetradecabromo p-phenoxydiphenyl ether and hexabromocyclododecane are used, and preferably brominated organic flame retardants that can obtain a high flame retardant effect with a relatively small amount are used. used. The amount used is 5 parts per 100 parts by weight of the polyolefin composition.
~80 parts by weight. If it is less than 5 parts by weight, the flame retardance is insufficient, and if it exceeds 80 parts by weight, a decrease in mechanical strength and a blooming phenomenon occur, which is not only undesirable but also increases costs.
本発明で用いられる水酸化マグネシウムは市販品の粉末
状のものをそのまま用いることができ、使用量としては
ポリオレフィン組成物１００重量部に対して３〜１００
重量部である。３重量部未満では難燃性が充分でなく、
１００重量部を超えると機械的強度の低下、！気絶様物
として絶縁抵抗が低下し好ましくない。The magnesium hydroxide used in the present invention can be used as it is in the form of a commercially available powder, and the amount used is 3 to 100 parts by weight per 100 parts by weight of the polyolefin composition.
Parts by weight. If it is less than 3 parts by weight, flame retardancy is not sufficient,
If it exceeds 100 parts by weight, mechanical strength will decrease! This is not preferable because it causes a fainting effect and the insulation resistance decreases.
また水酸化マグネシウムに適当な表面処理をほどこして
も良い。Further, magnesium hydroxide may be subjected to a suitable surface treatment.
本発明の難燃助剤は金属酸化物及び／または金属酸化物
の鉱酸塩である。金属酸化物としては亜鉛。The flame retardant aid of the present invention is a metal oxide and/or a mineral acid salt of a metal oxide. Zinc is a metal oxide.
アンチモン、ビスマス、鉄、チタン、などの金属の酸化
物が用いられ、好ましくは酸化亜鉛、三酸化アンチモン
が用いられる６金属酸化物の鉱酸塩としてはホウ酸亜鉛
、三塩基性硫酸鉛などが用いられ、好ましくはホウ酸亜
鉛が用いられる。これら難燃助剤は一種または二種以上
組み合わせて使用されるが、特に好ましい難燃助剤は三
酸化アンチモンと酸化亜鉛の組合せ、三酸化アンチモン
とホウ酸亜鉛の組合せである。使用量としてはポリオレ
フィン組成物１００重量部に対して難燃助剤全体では３
〜５０重量部である。３重量部未満では難燃効果が充分
でなく、５０重量部を超えると機械的強度の低下とコス
トアップにつながる。Oxides of metals such as antimony, bismuth, iron, and titanium are used, preferably zinc oxide and antimony trioxide. Examples of mineral acid salts of six metal oxides include zinc borate and tribasic lead sulfate. Zinc borate is preferably used. These flame retardant aids may be used singly or in combination of two or more, and particularly preferred flame retardant aids are a combination of antimony trioxide and zinc oxide, and a combination of antimony trioxide and zinc borate. The total amount of flame retardant aid used is 3 parts by weight per 100 parts by weight of the polyolefin composition.
~50 parts by weight. If it is less than 3 parts by weight, the flame retardant effect will not be sufficient, and if it exceeds 50 parts by weight, it will lead to a decrease in mechanical strength and an increase in cost.
本発明のハロゲン系有機難燃剤、水酸化マグネシウム及
び難燃助剤の組合せからなる難燃剤はポリオレフィン混
合物１００重量部に対して、機械的強度１外観などをよ
り向上させるためと、また−般に難燃剤は高価であるた
めコスト面からもなるべく少量用いることが好ましい。The flame retardant consisting of the combination of the halogenated organic flame retardant, magnesium hydroxide, and flame retardant aid of the present invention is added to 100 parts by weight of the polyolefin mixture for the purpose of further improving mechanical strength, appearance, etc., and for general purpose. Since flame retardants are expensive, it is preferable to use as little as possible from a cost standpoint.
本発明の難燃性ポリオレフィン組成物には公知のヒンダ
ードフェノール系、イオウ系、リン系、ベンゾトリアゾ
ール系、アミン系、ベンゾチアゾール系、ベンゾイミダ
ゾール系、ヒンダードアミン系などの公知の安定剤を必
要に応じて配合できる。The flame-retardant polyolefin composition of the present invention requires known stabilizers such as hindered phenol-based, sulfur-based, phosphorus-based, benzotriazole-based, amine-based, benzothiazole-based, benzimidazole-based, and hindered amine-based stabilizers. Can be mixed as required.
またケイ酸マグネシウム系、ケイ酸アルミニウム系、無
水ケイ酸系、金属炭酸塩類などの充填則ち必要に応じて
配合でき、顔料、染料なども必要に応じて配合できる。In addition, fillers such as magnesium silicate, aluminum silicate, silicic anhydride, and metal carbonates can be added as needed, and pigments, dyes, etc. can also be added as needed.
尚、本発明の難燃性ポリオレフィン組成物は高エネルギ
ー電子線を用いた照射架橋もしくは有機過酸化物による
化学架橋の手段を用いて架橋物としても良い。The flame-retardant polyolefin composition of the present invention may be crosslinked by irradiation crosslinking using a high-energy electron beam or chemical crosslinking using an organic peroxide.
（作用）
本発明の難燃性ポリオレフィン組成物は、約０８ｍｍの
厚さの試験片にて、米国ＵＬ規格の接炎難燃試験ＵＬ９
４ Ｖ−２規格に合格するとともに、抗張力１．１ｋ
ｇ／ｍｍ２以上、伸び３５０％以上の機械的特性を有す
る組成物である。(Function) The flame-retardant polyolefin composition of the present invention has a flame retardant test of UL9 according to the U.S. UL standard using a test piece with a thickness of about 0.8 mm.
4 Passes the V-2 standard and has a tensile strength of 1.1k
The composition has mechanical properties of g/mm2 or more and elongation of 350% or more.
（実施例）
以下、本発明の難燃性ポリオレフィン組成物を実施例に
より説明する。(Example) Hereinafter, the flame-retardant polyolefin composition of the present invention will be explained with reference to Examples.
実施例として、先ず表−１に記載した配合組成物を６イ
ンチロールにて１００℃、１５分間の条件で混練りした
６後、プレス機にて加硫温度１９０℃、加硫時間１０分
間、プレス圧力６０ ｋ ｇ ／ ｃｍ２の条件で加熱
架橋して厚さ約０．８ｍｍのシートを得た。これらのシ
ートを使用してＪＩＳＣ３００５，ＪＩＳ Ｋ ６
９１１． ＪＩＳ Ｋ６７３０、ＵＬ ９４
に基づき各評価を行いこれらの結果を表−１に併記した
。As an example, first, the blended composition shown in Table 1 was kneaded using a 6-inch roll at 100°C for 15 minutes, and then kneaded using a press at a vulcanization temperature of 190°C for 10 minutes. A sheet with a thickness of about 0.8 mm was obtained by heat crosslinking at a press pressure of 60 kg/cm2. JIS C3005, JIS K 6 using these sheets
911. JIS K6730, UL 94
Each evaluation was conducted based on the following, and the results are also listed in Table-1.
（以下余白）
二 二 二 二
Δ ム コ Δ
× Ｘ ＼ ス
（発明の効果）
本発明によれば柔軟で、特に機械強度及び難燃性に優れ
た組成物が得られる。この組成物は１ｍｍ以下の厚みで
の垂直難燃試験においても ＵＬ９４ Ｖ−２相当の
難燃性を示し、しかも充分な機械的強度を示す、この組
成物を銅線上に押し出した後、有機過酸化物によって架
橋して得られる架橋ポリオレフィン電線は、良好な外観
１機械的強度、！！燃性などの高度なバランスを示し、
また柔軟であることから機器内配線用電線として加工性
５組み付は作業性の面から特に好ましいものである。(The following is a blank space) 2 2 2 Δ Δ Δ × This composition showed flame retardancy equivalent to UL94 V-2 even in a vertical flame retardant test with a thickness of 1 mm or less, and also showed sufficient mechanical strength. After extruding this composition onto a copper wire, it was The crosslinked polyolefin electric wire obtained by crosslinking with oxide has good appearance, mechanical strength, and! ! Shows a high degree of balance in terms of flammability, etc.
In addition, since it is flexible, workability 5 assembly is particularly preferable as an electric wire for internal wiring in equipment from the viewpoint of workability.
Claims (1)
フィン組成物１００重量部に対し、ハロゲン系有機難燃
剤５〜８０重量部、難燃助剤３〜５０重量部、水酸化マ
グネウム３〜１００重量部を配合してなる難燃性ポリオ
レフィン組成物。For 100 parts by weight of a polyolefin composition containing 40% by weight or less of a vinyl acetate component, 5 to 80 parts by weight of a halogenated organic flame retardant, 3 to 50 parts by weight of a flame retardant aid, and 3 to 100 parts by weight of magnesium hydroxide. A flame-retardant polyolefin composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16845088A JPH0218433A (en) | 1988-07-06 | 1988-07-06 | Flame retardant polyolefin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16845088A JPH0218433A (en) | 1988-07-06 | 1988-07-06 | Flame retardant polyolefin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0218433A true JPH0218433A (en) | 1990-01-22 |
Family
ID=15868334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16845088A Pending JPH0218433A (en) | 1988-07-06 | 1988-07-06 | Flame retardant polyolefin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0218433A (en) |
-
1988
- 1988-07-06 JP JP16845088A patent/JPH0218433A/en active Pending
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