WO2017104456A1 - 難燃性樹脂組成物、これを用いたメタルケーブル及び光ファイバケーブル並びに成形品 - Google Patents
難燃性樹脂組成物、これを用いたメタルケーブル及び光ファイバケーブル並びに成形品 Download PDFInfo
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- WO2017104456A1 WO2017104456A1 PCT/JP2016/086013 JP2016086013W WO2017104456A1 WO 2017104456 A1 WO2017104456 A1 WO 2017104456A1 JP 2016086013 W JP2016086013 W JP 2016086013W WO 2017104456 A1 WO2017104456 A1 WO 2017104456A1
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34926—Triazines also containing heterocyclic groups other than triazine groups
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Definitions
- the present invention relates to a flame retardant resin composition, a metal cable using the same, an optical fiber cable, and a molded product.
- eco-materials are widely used for cable coverings, cable jackets, tubes, tapes, packaging materials, building materials, and the like.
- a flame retardant in which a metal hydroxide is added as a flame retardant to a polyolefin resin, and a silicone compound such as silicone gum and a fatty acid-containing compound such as magnesium stearate are added as a flame retardant aid Resin compositions are known (see Patent Document 1 below).
- the present invention has been made in view of the above circumstances, and has a flame retardant resin composition capable of ensuring excellent mechanical properties and ensuring excellent flame retardancy, and a metal cable and an optical fiber using the same. It aims at providing a cable and a molded article.
- the present inventors have repeatedly studied to solve the above problems. As a result, the present inventors compounded the polyolefin resin with aluminum hydroxide, a silicone compound, a fatty acid-containing compound, and a triazine ring-containing hindered amine compound at predetermined ratios, and also contains oxygen atoms as the triazine ring-containing hindered amine compound. It has been found that the above-mentioned problems can be solved by using what to do.
- the present invention includes a polyolefin resin, a silicone compound, a fatty acid-containing compound, aluminum hydroxide, and a triazine ring-containing hindered amine compound, and the silicone compound is 0.5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- the fatty acid-containing compound is blended at a ratio of 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the polyolefin resin
- the aluminum hydroxide is blended at a ratio of 10 parts by mass or less.
- the triazine ring-containing hindered amine compound is blended at a ratio of 0.05 to 8 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- the triazine ring-containing hindered amine compound is an acid.
- a flame retardant resin composition comprising atoms.
- the flame-retardant resin composition of the present invention it is possible to ensure excellent mechanical properties and excellent flame retardancy.
- the present inventors infer the reason why the above effect is obtained in the flame retardant resin composition of the present invention as follows.
- the aluminum hydroxide when aluminum hydroxide is contained in the flame retardant resin composition, the aluminum hydroxide itself generates dehydration endotherm at a relatively low temperature in the early stage of combustion of the flame retardant resin composition. This dehydration endotherm suppresses the temperature rise and ignition of the polyolefin resin in the flame retardant resin composition, or inhibits the continuation of combustion.
- the flame retardant resin composition contains aluminum hydroxide, a silicone compound and a fatty acid-containing compound
- the surface of the polyolefin resin during the combustion of the flame retardant resin composition mainly contains aluminum hydroxide and a silicone compound.
- a fatty acid-containing compound, and a barrier layer that is considered to be composed of decomposition products thereof are formed, and combustion of the polyolefin resin is suppressed.
- the triazine ring-containing hindered amine compound having an oxygen atom is contained in the flame retardant resin composition, oxygen radicals are generated from the triazine ring-containing hindered amine compound during combustion of the flame retardant resin composition, and the oxygen By capturing the hydrogen radicals generated by the decomposition of the polyolefin resin when the radicals burn, the combustion of the polyolefin resin is suppressed.
- the said triazine ring containing hindered amine compound is a compound which has group represented by following formula (1).
- R 1 to R 4 each independently represents an alkyl group having 1 to 8 carbon atoms
- R 5 represents an alkyl group having 1 to 18 carbon atoms or a cycloalkyl having 5 to 12 carbon atoms.
- the triazine ring-containing hindered amine compound is preferably blended at a ratio of 3 parts by mass or less with respect to 100 parts by mass of the polyolefin resin.
- the aluminum hydroxide is preferably blended at a ratio of less than 50 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- the mechanical properties of the flame retardant resin composition can be more sufficiently improved as compared with the case where the blending ratio of aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin is out of the above range.
- the aluminum hydroxide is preferably blended at a ratio of less than 40 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- the mechanical properties of the flame retardant resin composition can be more sufficiently improved as compared with the case where the blending ratio of aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin is out of the above range.
- the fatty acid-containing compound is blended at a ratio of 0.5 parts by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the polyolefin resin, and the aluminum hydroxide is added to the polyolefin resin 100. It is preferable to mix
- the polyolefin resin is composed of at least one selected from the group consisting of polyethylene, acid-modified polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, and polypropylene. It is preferred that
- the fatty acid-containing compound is preferably magnesium stearate or calcium stearate.
- the fatty acid-containing compound is a fatty acid-containing compound other than magnesium stearate and calcium stearate, excellent flame retardancy can be obtained with a small addition amount in the flame-retardant resin composition.
- the flame retardant resin composition has a specific gravity of 1 or less.
- the flame retardant resin composition can be floated on water, and therefore a metal including an insulator made of the flame retardant resin composition
- the insulator can be efficiently recovered. For this reason, a flame-retardant resin composition can be reused efficiently.
- this invention is a metal cable provided with the metal conductor and the insulator which coat
- the present invention is an optical fiber cable comprising an optical fiber and an insulator covering the optical fiber, wherein the insulator is composed of the above-mentioned flame retardant resin composition.
- this invention is a molded article comprised with the said flame-retardant resin composition.
- the molded product of the present invention it is possible to ensure excellent mechanical properties and excellent flame retardancy.
- the specific gravity of the flame retardant resin composition means a value measured by an underwater substitution method based on JIS K7112.
- a flame retardant resin composition that can ensure excellent mechanical properties and also ensure excellent flame retardancy, a metal cable and an optical fiber cable, and a molded product using the same.
- FIG. 2 is a cross-sectional view taken along line II-II in FIG. It is sectional drawing which shows one Embodiment of the optical fiber cable of this invention.
- FIG. 1 is a partial side view showing an embodiment of a metal cable according to the present invention.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- the round cable 10 as a metal cable includes an insulated wire 4 and a tube-like outer jacket 3 as an insulator that covers the insulated wire 4.
- the insulated wire 4 includes an inner conductor 1 as a metal conductor and a tubular insulator 2 that covers the inner conductor 1. That is, in the round cable 10, the tube-shaped outer jacket 3 indirectly covers the inner conductor 1.
- the tubular insulator 2 and the jacket 3 are made of a flame retardant resin composition
- the flame retardant resin composition includes a polyolefin resin, a silicone compound, a fatty acid-containing compound, and a hydroxylated product.
- Aluminum and a triazine ring-containing hindered amine compound are included.
- the silicone compound is blended at a ratio of 0.5 parts by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the polyolefin resin, and the fatty acid-containing compound is added in an amount of 0.00 by mass relative to 100 parts by mass of the polyolefin resin.
- aluminum hydroxide is compounded at a ratio of 1 part by mass or more and 60 parts by mass or less with respect to 100 parts by mass of the polyolefin resin
- the triazine ring-containing hindered amine compound is 100 parts by mass of the polyolefin resin. It is mix
- the triazine ring-containing hindered amine compound contains an oxygen atom.
- the insulator 2 and the jacket 3 made of the flame retardant resin composition can ensure excellent flame retardancy while ensuring excellent mechanical properties.
- the inner conductor 1 as a metal conductor is prepared.
- the inner conductor 1 may be composed of only one strand, or may be configured by bundling a plurality of strands. Further, the inner conductor 1 is not particularly limited with respect to the conductor diameter, the material of the conductor, and the like, and can be appropriately determined according to the application.
- the flame retardant resin composition is prepared.
- the flame retardant resin composition contains a polyolefin resin, a silicone compound, a fatty acid-containing compound, aluminum hydroxide, and a triazine ring-containing hindered amine compound.
- polyolefin resins examples include polyethylene (PE), acid-modified polyethylene, ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), and ethylene-methyl acrylate copolymer.
- Polyolefin resin containing ethylene units such as polymer (EMA), ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-hexene copolymer, ethylene-octene copolymer, propylene unit such as polypropylene (PP)
- PP polypropylene
- polyolefin resins containing no ethylene units, olefinic thermoplastic elastomers, and the like examples include polyethylene (PE), acid-modified polyethylene, ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), and ethylene-methyl acrylate copolymer.
- the polyolefin resin is preferably composed of at least one selected from the group consisting of polyethylene, acid-modified polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, and polypropylene.
- the silicone compound functions as a flame retardant aid, and examples of the silicone compound include polyorganosiloxane.
- the polyorganosiloxane has a siloxane bond as a main chain and an organic group in a side chain.
- the organic group include a methyl group, a vinyl group, an ethyl group, a propyl group, and a phenyl group.
- polyorganosiloxane examples include dimethylpolysiloxane, methylethylpolysiloxane, methyloctylpolysiloxane, methylvinylpolysiloxane, methylphenylpolysiloxane, and methyl (3,3,3-trifluoropropyl) polysiloxane. Is mentioned.
- the polyorganosiloxane is used in the form of silicone oil, silicone powder, silicone gum or silicone resin. Among these, the polyorganosiloxane is preferably used in the form of silicone gum. In this case, blooming hardly occurs in the flame-retardant resin composition.
- the silicone compound is blended at a ratio of 0.5 parts by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the polyolefin resin as described above.
- the compounding ratio of a silicone compound is less than 0.5 mass part, in the flame-retardant resin composition, the more excellent flame retardance is obtained.
- the compounding ratio of the silicone compound with respect to 100 parts by mass of the polyolefin resin is within the above range, the non-uniformity of flame retardance is reduced as compared with the case where the compounding ratio of the silicone compound is larger than 10 parts by mass. This is because the silicone compound is easily mixed with the polyolefin resin evenly, and it is difficult for a lump to be generated partially.
- the blending ratio of the silicone compound with respect to 100 parts by mass of the polyolefin resin is preferably 7 parts by mass or less. In this case, compared with the case where the compounding ratio of a silicone compound exceeds 7 mass parts, in the flame-retardant resin composition, more excellent mechanical characteristics can be obtained.
- the blending ratio of the silicone compound to 100 parts by mass of the polyolefin resin is preferably less than 5 parts by mass. In this case, compared with the case where the compounding ratio of the silicone compound is 5 parts by mass or more, more excellent mechanical characteristics can be obtained in the flame retardant resin composition.
- the blending ratio of the silicone compound with respect to 100 parts by mass of the polyolefin resin is preferably 1 part by mass or more. In this case, compared with the case where the compounding ratio of a silicone compound is less than 1 mass part, in the flame-retardant resin composition, the more excellent flame retardance is obtained.
- the blending ratio of the silicone compound with respect to 100 parts by mass of the polyolefin resin is more preferably 2 parts by mass or more.
- the silicone compound may be attached in advance to the surface of aluminum hydroxide. In this case, segregation of the silicone compound is less likely to occur in the flame retardant resin composition, and the uniformity of characteristics in the flame retardant resin composition is further improved.
- the silicone compound is added to aluminum hydroxide and mixed to obtain a mixture, and then the mixture is dried at 40 to 75 ° C. for 10 to 40 minutes. And a method of pulverizing the dried mixture with a Henschel mixer, an atomizer or the like.
- the fatty acid-containing compound functions as a flame retardant aid.
- the fatty acid-containing compound refers to a compound containing a fatty acid or a metal salt thereof.
- a fatty acid having 12 to 28 carbon atoms is used as the fatty acid.
- examples of such fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, tuberculostearic acid, oleic acid, linoleic acid, arachidonic acid, behenic acid and montanic acid.
- stearic acid or tuberculostearic acid is preferable, and stearic acid is particularly preferable. In this case, more excellent flame retardancy is obtained in the flame retardant resin composition as compared with the case of using a fatty acid other than stearic acid or tuberculostearic acid.
- the fatty acid-containing compound is preferably a fatty acid metal salt.
- the metal constituting the fatty acid metal salt include magnesium, calcium, zinc and lead.
- magnesium stearate or calcium stearate is preferable. In this case, compared with the case where fatty acid metal salts other than magnesium stearate and calcium stearate are used, more excellent flame retardancy can be obtained with a smaller addition amount.
- the fatty acid-containing compound is blended at a ratio of 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the polyolefin resin.
- the flame-retardant resin composition is compared with the case where the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the polyolefin resin is larger than 20 parts by mass. In a product, bleeding is less likely to occur.
- the blending ratio of the fatty acid-containing compound to 100 parts by mass of the polyolefin resin is preferably 15 parts by mass or less, more preferably 10 parts by mass or less, and even more preferably 5 parts by mass or less.
- the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the polyolefin resin is within the above range, more excellent mechanical properties can be obtained in the flame retardant resin composition than when the blending ratio is outside the above ranges.
- the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the polyolefin resin is preferably 2 parts by mass or more, and more preferably 3 parts by mass or more.
- the fatty acid-containing compound may be previously attached to the surface of aluminum hydroxide. In this case, segregation of the fatty acid-containing compound is less likely to occur in the flame retardant resin composition, and the uniformity of characteristics in the flame retardant resin composition is further improved. Further, a fatty acid-containing compound and a silicone compound may be attached in advance to the surface of aluminum hydroxide. In this case, segregation of the silicone compound and the fatty acid-containing compound is less likely to occur in the flame retardant resin composition, and the uniformity of characteristics in the flame retardant resin composition is further improved.
- the silicone compound and the fatty acid-containing compound are added to aluminum hydroxide and mixed to obtain a mixture, and then the mixture is heated to 40 to 75 ° C. For 10 to 40 minutes, and the dried mixture is pulverized with a Henschel mixer, an atomizer or the like.
- Aluminum hydroxide is mix
- the flame retardant resin composition is compared with the case where the blending ratio of aluminum hydroxide with respect to 100 parts by mass of polyolefin resin is larger than 60 parts by mass.
- the mechanical properties of the object can be further improved.
- the mixing ratio of aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin is preferably less than 50 parts by mass, more preferably less than 40 parts by mass, still more preferably 30 parts by mass or less, and 20 parts by mass. It is even more preferable that the amount is not more than 5 parts, and it is particularly preferable that it be less than 5 parts by mass.
- the blending ratio of aluminum hydroxide with respect to 100 parts by mass of polyolefin resin is within the above range, the flame retardancy of the flame retardant resin composition is more sufficiently secured as compared with the case where the blending ratio is out of the above ranges. The mechanical characteristics can be improved more sufficiently.
- the mixing ratio of aluminum hydroxide to 100 parts by mass of polyolefin resin is preferably 3 parts by mass or more.
- the flame retardancy of the flame retardant resin composition can be more sufficiently ensured than when the compounding ratio is out of the above ranges.
- the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the polyolefin resin is 0.5 parts by mass or more and 10 parts by mass or less
- the blending ratio of the aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin is 1 to 5 parts by mass. More preferably, it is less than part.
- the blending ratio of the fatty acid-containing compound and the aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin exceeds the upper limit, more excellent mechanical properties can be obtained in the flame-retardant resin composition.
- the mixture ratio of the fatty acid containing compound and aluminum hydroxide with respect to 100 parts by mass of the polyolefin resin is less than the lower limit, more excellent flame retardancy is obtained in the flame retardant resin composition.
- Aluminum hydroxide may or may not be the only metal hydroxide contained in the flame retardant resin composition, but may be the only metal hydroxide. preferable. That is, it is preferable that the metal hydroxide contained in the flame retardant resin composition is composed only of aluminum hydroxide. In this case, more excellent flame retardancy is obtained in the flame retardant resin composition than in the case where aluminum hydroxide is not the only metal hydroxide contained in the flame retardant resin composition.
- Triazine ring-containing hindered amine compound is a hindered amine compound containing a triazine ring and is not particularly limited as long as it contains an oxygen atom in the molecule.
- a compound having a group represented by the formula (1) is preferable. In this case, more excellent flame retardancy is obtained in the flame retardant resin composition.
- R 1 to R 4 each independently represents an alkyl group having 1 to 8 carbon atoms
- R 5 represents an alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 5 to 12 carbon atoms.
- examples of the alkyl group represented by R 1 to R 4 include a methyl group, an ethyl group, a propyl group, a butoxy group, a pentyl group, and a hexyl group.
- the “alkyl group” includes not only an unsubstituted alkyl group but also a substituted alkyl group.
- the substituted alkyl group those obtained by substituting the hydrogen atom of the unsubstituted alkyl group with a halogen atom such as chlorine can be used.
- examples of the alkyl group represented by R 5 include a methyl group, an ethyl group, and a propyl group.
- Examples of the cycloalkyl group represented by R 5 include a cyclopentyl group and a cyclohexyl group.
- Examples of the aralkyl group represented by R 5 include a benzyl group.
- Examples of the aryl group represented by R 5 include a phenyl group and a naphthyl group.
- Examples of the triazine ring-containing hindered amine compound having a group represented by the above formula (1) include a compound represented by the following formula (2).
- R 6 to R 8 each independently represents a group represented by the following formula (3)
- R 9 and R 10 each independently represent a group represented by the above formula (1)
- R 11 and R 12 each independently represents an alkyl group having 1 to 18 carbon atoms.
- triazine ring-containing hindered amine compound examples include compounds represented by the above formula (2), wherein R 1 to R 4 in the formula (1) are methyl groups, R 5 is a cyclohexyl group, and R in the formula (3) 11 and R 12 are represented by a butyl group, R 6 to R 8 are the same as each other, and R 9 and R 10 are the same as each other (trade name “Flamestab NOR 116FF”, manufactured by BASF). .
- the triazine ring-containing hindered amine compound is blended at a ratio of 0.05 parts by mass or more and 8 parts by mass or less with respect to 100 parts by mass of the polyolefin resin.
- the blending ratio of the hindered amine compound containing a triazine ring to 100 parts by mass of the polyolefin resin is preferably 0.1 parts by mass or more. In this case, even more excellent flame retardancy is obtained in the flame retardant resin composition as compared with the case where the blending ratio of the triazine ring-containing hindered amine compound to 100 parts by mass of the polyolefin resin is less than 0.1 parts by mass.
- the blending ratio of the triazine ring-containing hindered amine compound to 100 parts by mass of the polyolefin resin is more preferably 0.3 parts by mass or more, still more preferably 0.5 parts by mass or more, and 1 part by mass or more. It is particularly preferred.
- the blending ratio of the triazine ring-containing hindered amine compound with respect to 100 parts by mass of the polyolefin resin is preferably 5 parts by mass or less, more preferably 3 parts by mass or less, and even more preferably 2 parts by mass or less. In this case, compared to the case where the blending ratio of the triazine ring-containing hindered amine compound with respect to 100 parts by mass of the polyolefin resin is out of the above ranges, blooming is further less likely to occur in the flame-retardant resin composition.
- the flame retardant resin composition may further contain a filler such as an antioxidant, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
- a filler such as an antioxidant, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
- the flame retardant resin composition can be obtained by kneading a polyolefin resin, a silicone compound, a fat-containing compound, aluminum hydroxide, a triazine ring-containing hindered amine compound, and the like.
- the kneading can be performed with a kneading machine such as a Banbury mixer, a tumbler, a pressure kneader, a kneading extruder, a twin screw extruder, a mixing roll, and the like.
- a part of the polyolefin resin and the silicone compound are kneaded, and the obtained master batch (MB) is mixed with the remaining polyolefin resin, fatty acid-containing compound, aluminum hydroxide. And may be kneaded with a triazine ring-containing hindered amine compound or the like.
- the inner conductor 1 is covered with the flame retardant resin composition.
- the flame retardant resin composition is melt kneaded using an extruder to form a tubular extrudate. Then, the tubular extrudate is continuously coated on the inner conductor 1. Thus, the insulated wire 4 is obtained.
- ⁇ Coat> Finally, one insulated wire 4 obtained as described above is prepared, and this insulated wire 4 is covered with a jacket 3 made using the above-mentioned flame-retardant resin composition.
- the outer jacket 3 is a so-called sheath and protects the insulator 2 from physical or chemical damage.
- This invention is a molded article comprised with the flame-retardant resin composition mentioned above.
- This molded product can ensure excellent mechanical properties and excellent flame retardancy.
- the molded product can be obtained by a general molding method such as an injection molding method or an extrusion molding method.
- the present invention is not limited to the above embodiment.
- the round cable 10 having one insulated wire 4 is used as the metal cable.
- the metal cable of the present invention includes a metal conductor and an insulator covering the metal conductor. As long as it is, it is not limited to a round cable. Therefore, the metal cable of the present invention may be a metal cable having two or more insulated wires 4 inside the outer jacket 3. Further, a resin portion made of polypropylene or the like may be provided between the jacket 3 and the insulated wire 4.
- the insulator 2 and the jacket 3 of the insulated wire 4 are comprised with said flame-retardant resin composition
- the insulator 2 is comprised with normal insulation resin, and only the jacket 3 is The flame retardant resin composition may be used.
- the insulator 2 is not necessarily required and can be omitted.
- the flame-retardant resin composition which comprises the insulator 2 and the jacket 3 of the insulated wire 4 is also used as an insulator in an optical fiber cable having an optical fiber and an insulator covering the optical fiber.
- FIG. 3 is a cross-sectional view showing a drop-type optical fiber cable as an embodiment of the optical fiber cable.
- the optical fiber cable 20 includes a support wire 21, two tension members 22 and 23, an optical fiber 24, and an outer sheath 25 as an insulator covering them.
- the jacket 25 is comprised with the flame-retardant resin composition which comprises the insulator 2 and the jacket 3 of the insulated wire 4 in the said embodiment.
- the flame retardant resin composition of the present invention is not only used for the above-mentioned metal cable and optical fiber cable insulators, but also for various applications requiring flame retardancy such as tubes, tapes, packaging materials, and building materials. Applicable.
- Polyethylene hereinafter referred to as “polyethylene A”
- silicone masterbatch silicone masterbatch
- a fatty acid-containing compound aluminum hydroxide
- a triazine ring-containing hindered amine compound as a polyolefin resin
- Tables 1 to 7. The mixture was kneaded at 160 ° C. for 15 minutes with a Banbury mixer to obtain a flame retardant resin composition.
- the silicone MB is a mixture of polyethylene (hereinafter referred to as “polyethylene B”) as a polyolefin resin and silicone gum.
- the unit of the blending amount of each blending component is part by mass.
- the blending amount of polyethylene A as the polyolefin resin is not 100 parts by mass, but the polyolefin resin in the base resin is polyethylene A and silicone. If the blending amount of polyethylene A and the blending amount of polyethylene B in silicone MB are summed, the sum is 100 parts by mass.
- polyolefin resin silicone MB
- aluminum hydroxide fatty acid-containing compound
- triazine ring-containing hindered amine compound were as follows.
- Polyolefin resin polyethylene A manufactured by Sumitomo Chemical Co., Ltd.
- Silicone MB manufactured by Shin-Etsu Chemical Co., Ltd. (containing 50 mass% silicone gum and 50 mass% polyethylene B)
- Aluminum hydroxide manufactured by Nippon Light Metal Co., Ltd., average particle size 1.2 ⁇ m
- Fatty acid-containing compound Magnesium stearate: ADEKA zinc stearate: NOF Corporation calcium stearate: Sakai Chemical Industry Co., Ltd.
- Triazine ring-containing hindered amine compound a compound represented by the formula (2) manufactured by BASF, wherein R 1 to R 4 in the formula (1) are methyl groups, R 5 is a cyclohexyl group, and R in the formula (3) A compound in which 11 and R 12 are each represented by a butyl group, R 6 to R 8 are the same as each other, and R 9 and R 10 are the same as each other
- a conductor made of copper (number of strands / cross-sectional area 2 mm 2 ) was coated to a thickness of 0.7 mm. Thus, an insulated wire was obtained.
- Pass rate (%) 100 ⁇ number of insulated wires satisfying the following criteria (A) / total number of insulated wires tested (10) (A) The distance between the lower end of the upper support material that supports the insulated wire at the upper portion and the carbonization start point was 50 mm or more, and in the insulated wire, combustion did not spread below 540 mm from the lower end of the upper support material. (Pass / fail criteria) Pass: Pass rate 80% or higher Fail: Pass rate less than 80%
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Abstract
Description
図1は、本発明に係るメタルケーブルの一実施形態を示す部分側面図である。図2は、図1のII-II線に沿った断面図である。図1及び図2に示すように、メタルケーブルとしての丸型ケーブル10は、絶縁電線4と、絶縁電線4を被覆する絶縁体としてのチューブ状の外被3とを備えている。そして、絶縁電線4は、金属導体としての内部導体1と、内部導体1を被覆するチューブ状の絶縁体2とを有している。すなわち、丸型ケーブル10では、チューブ状の外被3は、内部導体1を間接的に被覆している。
次に、上述した丸型ケーブル10の製造方法について説明する。
まず金属導体としての内部導体1を準備する。内部導体1は、1本の素線のみで構成されてもよく、複数本の素線を束ねて構成されたものであってもよい。また、内部導体1は、導体径や導体の材質などについて特に限定されるものではなく、用途に応じて適宜定めることができる。
一方、上記難燃性樹脂組成物を準備する。難燃性樹脂組成物は、上述したように、ポリオレフィン樹脂と、シリコーン化合物と、脂肪酸含有化合物と、水酸化アルミニウムと、トリアジン環含有ヒンダードアミン化合物とを含む。
ポリオレフィン樹脂としては、例えばポリエチレン(PE)、酸変性ポリエチレン、エチレン-酢酸ビニル共重合体(EVA)、エチレン-アクリル酸エチル共重合体(EEA)、エチレン-アクリル酸メチル共重合体(EMA)、エチレン-プロピレン共重合体、エチレン-ブテン共重合体、エチレン-ヘキセン共重合体、エチレン-オクテン共重合体などのエチレン単位を含有するポリオレフィン樹脂、ポリプロピレン(PP)などのプロピレン単位を含みエチレン単位を含まないポリオレフィン樹脂、及びオレフィン系熱可塑性エラストマーなどが挙げられる。これらは単独で又は2種以上を組み合せて用いることができる。中でも、ポリオレフィン樹脂は、ポリエチレン、酸変性ポリエチレン、エチレン-酢酸ビニル共重合体、エチレン-アクリル酸エチル共重合体及びポリプロピレンからなる群より選ばれる少なくとも1種で構成されることが好ましい。
シリコーン化合物は、難燃助剤として機能するものであり、シリコーン化合物としては、ポリオルガノシロキサンなどが挙げられる。ここで、ポリオルガノシロキサンは、シロキサン結合を主鎖とし側鎖に有機基を有するものであり、有機基としては、例えばメチル基、ビニル基、エチル基、プロピル基、フェニル基などが挙げられる。具体的にはポリオルガノシロキサンとしては、例えばジメチルポリシロキサン、メチルエチルポリシロキサン、メチルオクチルポリシロキサン、メチルビニルポリシロキサン、メチルフェニルポリシロキサン、メチル(3,3,3-トリフルオロプロピル)ポリシロキサンなどが挙げられる。ポリオルガノシロキサンは、シリコーンオイル、シリコーンパウダー、シリコーンガム又はシリコーンレジンの形態で用いられる。中でも、ポリオルガノシロキサンは、シリコーンガムの形態で用いられることが好ましい。この場合、難燃性樹脂組成物において、ブルームが起こりにくくなる。
脂肪酸含有化合物は、難燃助剤として機能するものである。脂肪酸含有化合物とは、脂肪酸又はその金属塩を含有するものを言う。ここで、脂肪酸としては、例えば炭素原子数が12~28である脂肪酸が用いられる。このような脂肪酸としては、例えばラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ツベルクロステアリン酸、オレイン酸、リノール酸、アラキドン酸、ベヘン酸及びモンタン酸が挙げられる。中でも、脂肪酸としては、ステアリン酸又はツベルクロステアリン酸が好ましく、ステアリン酸が特に好ましい。この場合、ステアリン酸又はツベルクロステアリン酸以外の脂肪酸を用いる場合に比べて、難燃性樹脂組成物において、より優れた難燃性が得られる。
水酸化アルミニウムは、ポリオレフィン樹脂100質量部に対して1質量部以上60質量部以下の割合で配合される。この場合、水酸化アルミニウムの配合割合がポリオレフィン樹脂100質量部に対して1質量部未満である場合に比べて、難燃性樹脂組成物において、より優れた難燃性が得られる。
トリアジン環含有ヒンダードアミン化合物は、トリアジン環を含有するヒンダードアミン化合物であり、分子内に酸素原子を含んでいるものであれば特に制限されないが、トリアジン環含有ヒンダードアミン化合物は下記式(1)で表される基を有する化合物であることが好ましい。この場合、難燃性樹脂組成物において、より優れた難燃性が得られる。
最後に、上記のようにして得られた絶縁電線4を1本用意し、この絶縁電線4を、上述した難燃性樹脂組成物を用いて作製した外被3で被覆する。外被3は、いわゆるシースであり、絶縁体2を物理的又は化学的な損傷から保護するものである。
本発明は、上述した難燃性樹脂組成物で構成される成形品である。
ポリオレフィン樹脂としてのポリエチレン(以下、「ポリエチレンA」と呼ぶ)、シリコーンマスターバッチ(シリコーンMB)、脂肪酸含有化合物、水酸化アルミニウム及びトリアジン環含有ヒンダードアミン化合物を、表1~7に示す配合量で配合し、バンバリーミキサによって160℃にて15分間混練し、難燃性樹脂組成物を得た。ここで、シリコーンMBはポリオレフィン樹脂としてのポリエチレン(以下、「ポリエチレンB」と呼ぶ)とシリコーンガムとの混合物である。なお、表1~7において、各配合成分の配合量の単位は質量部である。また表1~7においては、比較例6及び比較例7を除いて、ポリオレフィン樹脂としてのポリエチレンAの配合量が100質量部となっていないが、ベース樹脂中のポリオレフィン樹脂は、ポリエチレンAとシリコーンMB中のポリエチレンBとの混合物で構成されており、ポリエチレンAの配合量とシリコーンMB中のポリエチレンBの配合量とを合計すれば、その合計は100質量部となる。
実施例1~25及び比較例1~8の難燃性樹脂組成物について、JIS K7112に準拠した水中置換法により比重を測定した。結果を表1~7に示す。
(1)ポリオレフィン樹脂
ポリエチレンA:住友化学社製
(2)シリコーンMB:信越化学工業社製
(50質量%シリコーンガムと50質量%ポリエチレンBとを含有)
(3)水酸化アルミニウム:日本軽金属社製、平均粒径1.2μm
(4)脂肪酸含有化合物
ステアリン酸マグネシウム:ADEKA社製
ステアリン酸亜鉛:日油社製
ステアリン酸カルシウム: 堺化学工業社製
ステアリン酸:日油社製
ベヘン酸:日油社製
モンタン酸:クラリアントジャパン社製
(5)トリアジン環含有ヒンダードアミン化合物:BASF社製
式(2)で表される化合物であって式(1)におけるR1~R4がメチル基、R5がシクロヘキシル基、式(3)におけるR11及びR12がブチル基で表され、R6~R8が互いに同一であり、R9及びR10が互いに同一である化合物
実施例1~25及び比較例1~8の各々で得られた10本の絶縁電線について、JIS C3665-1に準拠した垂直燃焼試験を行った。なお、バーナーによる接炎時間は60秒間とした。そして、10本の絶縁電線のうち、下記(A)の条件を満たす絶縁電線の割合を合格率(単位:%)として下記式に基づいて算出した。結果を表1~7に示す。なお、表1~7において、難燃性の合否基準は下記の通りとした。
合格率(%)=100×下記(A)の基準を満たした絶縁電線の本数/試験を行った絶縁電線の総数(10本)
(A)絶縁電線を上部で支持する上部支持材の下端と炭化開始点との距離が50mm以上であり且つ絶縁電線において燃焼が上部支持材の下端から540mmより下方に広がらなかった
(合否基準)
合格 :合格率80%以上
不合格:合格率80%未満
機械的特性の評価は、実施例1~25及び比較例1~8の絶縁電線について、JIS C3005により引張試験を行い、測定された引張強度に基づいて行った。結果を表1~7に示す。表1~7において、引張強度の単位はMPaであり、引張強度の合否基準は下記の通りとした。なお、引張試験において、引張速度は200mm/min、標線間距離は20mmとした。
10MPa以上:合格
10MPa未満:不合格
2…絶縁体(成形品)
3…外被(絶縁体、成形品)
4…絶縁電線
10…丸型ケーブル(メタルケーブル)
20…光ファイバケーブル
24…光ファイバ
25…外被(絶縁体、成形品)
Claims (12)
- ポリオレフィン樹脂と、
シリコーン化合物と、
脂肪酸含有化合物と、
水酸化アルミニウムと、
トリアジン環含有ヒンダードアミン化合物とを含み、
前記シリコーン化合物が前記ポリオレフィン樹脂100質量部に対して0.5質量部以上10質量部以下の割合で配合され、
前記脂肪酸含有化合物が前記ポリオレフィン樹脂100質量部に対して0.5質量部以上20質量部以下の割合で配合され、
前記水酸化アルミニウムが前記ポリオレフィン樹脂100質量部に対して1質量部以上60質量部以下の割合で配合され、
前記トリアジン環含有ヒンダードアミン化合物が前記ポリオレフィン樹脂100質量部に対して0.05質量部以上8質量部以下の割合で配合され、
前記トリアジン環含有ヒンダードアミン化合物が酸素原子を含む難燃性樹脂組成物。 - 前記トリアジン環含有ヒンダードアミン化合物が前記ポリオレフィン樹脂100質量部に対して3質量部以下の割合で配合される、請求項1又は2に記載の難燃性樹脂組成物。
- 前記水酸化アルミニウムが、前記ポリオレフィン樹脂100質量部に対して50質量部未満の割合で配合される請求項1~3のいずれか一項に記載の難燃性樹脂組成物。
- 前記水酸化アルミニウムが、前記ポリオレフィン樹脂100質量部に対して40質量部未満の割合で配合される請求項4に記載の難燃性樹脂組成物。
- 前記脂肪酸含有化合物が、前記ポリオレフィン樹脂100質量部に対して0.5質量部以上10質量部以下の割合で配合され、
前記水酸化アルミニウムが、前記ポリオレフィン樹脂100質量部に対して1質量部以上5質量部未満の割合で配合される請求項1~5のいずれか一項に記載の難燃性樹脂組成物。 - 前記ポリオレフィン樹脂が、ポリエチレン、酸変性ポリエチレン、エチレン-酢酸ビニル共重合体、エチレン-アクリル酸エチル共重合体及びポリプロピレンからなる群より選ばれる少なくとも1種で構成される請求項1~6のいずれか一項に記載の難燃性樹脂組成物。
- 前記脂肪酸含有化合物がステアリン酸マグネシウム又はステアリン酸カルシウムである請求項1~7のいずれか一項に記載の難燃性樹脂組成物。
- 1以下の比重を有する請求項1~8のいずれか一項に記載の難燃性樹脂組成物。
- 金属導体と、
前記金属導体を被覆する絶縁体とを備え、
前記絶縁体が、請求項1~9のいずれか一項に記載の難燃性樹脂組成物で構成されるメタルケーブル。 - 光ファイバと、
前記光ファイバを被覆する絶縁体とを備え、
前記絶縁体が、請求項1~9のいずれか一項に記載の難燃性樹脂組成物で構成される光ファイバケーブル。 - 請求項1~9のいずれか一項に記載の難燃性樹脂組成物で構成される成形品。
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- 2016-12-05 JP JP2016571363A patent/JP6178934B1/ja active Active
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US10640634B2 (en) | 2020-05-05 |
JP6178934B1 (ja) | 2017-08-09 |
US20180371220A1 (en) | 2018-12-27 |
JPWO2017104456A1 (ja) | 2017-12-14 |
TWI663200B (zh) | 2019-06-21 |
EP3385323A4 (en) | 2019-09-04 |
TW201736478A (zh) | 2017-10-16 |
CN107922680A (zh) | 2018-04-17 |
EP3385323A1 (en) | 2018-10-10 |
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