WO2011102324A1 - 電線被覆材用組成物、絶縁電線およびワイヤーハーネス - Google Patents
電線被覆材用組成物、絶縁電線およびワイヤーハーネス Download PDFInfo
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- WO2011102324A1 WO2011102324A1 PCT/JP2011/053085 JP2011053085W WO2011102324A1 WO 2011102324 A1 WO2011102324 A1 WO 2011102324A1 JP 2011053085 W JP2011053085 W JP 2011053085W WO 2011102324 A1 WO2011102324 A1 WO 2011102324A1
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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
- 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
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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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08L23/26—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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- 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
- H01B3/441—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 from alkenes
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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
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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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0066—Flame-proofing or flame-retarding additives
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
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- 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
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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
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
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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
- C08L2312/00—Crosslinking
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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
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/22—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers modified by chemical after-treatment
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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
- C08L43/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Compositions of derivatives of such polymers
- C08L43/04—Homopolymers or copolymers of monomers containing silicon
Definitions
- the present invention relates to a composition for an electric wire covering material, an insulated electric wire, and a wire harness, and more specifically, is suitable as a covering material such as an insulated electric wire for automobiles that requires high heat resistance, flame retardancy, mechanical strength,
- the present invention relates to a composition for an electric wire coating material excellent in various properties such as heat resistance and chemical resistance, an insulated electric wire and a wire harness using the same.
- Patent Document 1 1 to 3 parts by weight of a silane coupling agent and 0.025 to 0.063 parts by weight of a crosslinking agent are blended with 100 parts by weight of a polyolefin elastomer, and the mixture is heated and kneaded to prepare a silane coupling agent.
- non-halogen flame-retardant silane-crosslinked polyolefin composition formed by kneading and heat-crosslinking a catalyst master batch (component B) impregnated with 7.14 to 31.3 parts by weight of a catalyst.
- composition used for a wire coating material 100 parts by mass of at least one polymer selected from the group consisting of a thermoplastic resin, a rubber, and a thermoplastic elastomer, an organic peroxide 0.
- a resin composition for mixing with a silane crosslinkable polyolefin, comprising 01 to 0.6 parts by weight, silanol condensation catalyst 0.05 to 0.5 parts by weight, and magnesium hydroxide 100 to 300 parts by weight is disclosed. .
- a master batch composed of a filler and a non-water cross-linked resin is generally prepared, and the master batch is mixed with the water cross-linked resin.
- the viscosity of the masterbatch increases, which tends to cause a dispersion failure or a decrease in productivity.
- the present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is that it does not use electron beam crosslinking, has excellent heat resistance, has good productivity, and has a flame-retardant wire coating. It is providing the composition for materials, an insulated wire, and a wire harness.
- the composition for a wire coating material is: (A) Water-crosslinkable polyolefin in which polyolefin is modified with silane coupling agent (B) Unmodified polyolefin (C) Modified polyolefin modified with functional group (D) Flame retardant (E) Crosslinking catalyst (F) Phenol-based oxidation (G) (G1) zinc sulfide, or (G2) zinc oxide and (G3) imidazole compound, The gist is that (D) the flame retardant contains (D1) a brominated flame retardant.
- the gist of the insulated wire according to the present invention is that it has a wire covering material obtained by water-crosslinking the composition for a wire covering material.
- the gist of the wire harness according to the present invention is to have the above insulated wire.
- the composition for a wire covering material is: (A) Water crosslinkable polyolefin in which polyolefin is modified with silane coupling agent (B) Unmodified polyolefin (C) Modified polyolefin modified with functional group (D) Flame retardant (E) Crosslinking catalyst (F) Phenol-based oxidation (G) (G1) zinc sulfide, or (G2) zinc oxide and (G3) imidazole compound, The (D) flame retardant contains (D1) a brominated flame retardant. Therefore, when forming a flame-retardant resin film from the composition, it can be formed by inexpensive water crosslinking of equipment without using electron beam crosslinking.
- the formed coating does not need to add a large amount of filler such as magnesium hydroxide as a flame retardant, there is no risk of lowering the original heat resistance of the cross-linking material by adding a large amount of filler, and the heat resistance is excellent. Things are obtained.
- a master batch composed of a filler and a non-water-crosslinked resin is prepared.
- the viscosity of the masterbatch does not increase, and there is no possibility of causing poor dispersion or a decrease in productivity, and the productivity is good.
- the insulated wire according to the present invention has a wire covering material obtained by water-crosslinking a composition for a wire covering material, it is excellent in heat resistance and mechanical properties. Moreover, since expensive electron beam irradiation crosslinking and synthetic magnesium hydroxide are not used, it can contribute to cost reduction.
- the wire harness according to the present invention has the above insulated wire, it is excellent in heat resistance and mechanical properties. Moreover, since expensive electron beam irradiation crosslinking and synthetic magnesium hydroxide are not used, it can contribute to cost reduction.
- composition for electric wire coating materials of this invention can be comprised from the following component as an example.
- A Water-crosslinkable polyolefin in which polyolefin is modified with a silane coupling agent
- B Unmodified polyolefin
- C Modified polyolefin modified with functional group
- D As flame retardant (D1) Brominated flame retardant, or ( D1) Brominated flame retardant and (D2) Antimony trioxide
- E Crosslinking catalyst
- Phenol antioxidant G
- H Copper damage prevention agent
- the composition of the present invention is greatly characterized in that a brominated flame retardant (D1) is used as a flame retardant in a water-crosslinked resin composition mainly composed of an olefin resin.
- D1 The brominated flame retardant can be expected to efficiently capture active radicals when polyolefin burns.
- D1 By adding a brominated flame retardant, it is not necessary to add a large amount of a conventional inorganic filler such as magnesium hydroxide, so that the heat resistance of the film formed from the resin composition is improved and further manufactured. Problems such as poor dispersibility in the process and a decrease in productivity can be solved.
- each component will be described.
- the resin composition for covering an electric wire is mainly composed of a polyolefin resin, and contains at least (A) a water-crosslinkable polyolefin, (B) an unmodified polyolefin, and (C) a modified polyolefin as resin components.
- the resin component consisting of (A), (B) and (C) is usually 40% by mass or more, preferably 45% by mass or more, as a proportion of the composition.
- the resin component consisting of (A), (B) and (C) and the flame retardant component (D1) in the composition have the following ratios, which balances heat resistance, mechanical properties, flame retardancy, and the like. It is preferable because it is excellent.
- Modified polyolefin 70 to 10 parts by mass, preferably Is 60 to 20 parts by mass, more preferably 50 to 30 parts by mass.
- Brominated flame retardant 10 to 70 parts by mass, preferably 10 to 50 parts by mass, more preferably 10 to 30 parts by mass
- (B) Unmodified polyolefin and (C) modified polyolefin are added to improve the physical properties of the water-crosslinkable polyolefin.
- a crosslinked coating formed from a water-crosslinkable polyolefin, a crosslinking catalyst, a flame retardant, and the like has sufficient heat resistance.
- physical properties other than heat resistance in the case of an electric wire coating are insufficient.
- (B) unmodified polyolefin and (C) modified polyolefin are mixed with an additive such as a flame retardant during the production of the composition (details will be described later), and the flame retardant does not contain a water-crosslinkable polyolefin. Can be used to compose a batch.
- silane-grafted polyolefin As the water-crosslinkable polyolefin, for example, silane-grafted polyolefin can be used.
- the silane-grafted polyolefin is obtained by grafting a silane coupling agent to a polyolefin.
- polystyrene resin examples include polyethylene, polypropylene such as high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and very low density polyethylene (VLDPE).
- polypropylene such as high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and very low density polyethylene (VLDPE).
- Other olefin homopolymers ethylene- ⁇ olefin copolymers, ethylene-vinyl acetate copolymers, ethylene-acrylic acid ester copolymers, ethylene-methacrylic acid ester copolymer and other ethylene copolymers
- Propylene copolymers such as propylene- ⁇ olefin copolymer, propylene-vinyl acetate copolymer, propylene-acrylic acid ester copolymer, propylene-methacrylic
- polyethylene polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, ethylene-methacrylic acid copolymer, or the like is preferably used.
- the polyolefin used for the water-crosslinkable polyolefin is particularly preferably polyethylene because of its appropriate flexibility.
- the polyolefin is selected from ultra-low density polyethylene, linear low density polyethylene and low density polyethylene. It is preferable to use 1 type (s) or 2 or more types.
- polyethylene having excellent flexibility is used when used for applications such as a wire covering material, it is easy to handle the wire, and a wire having excellent routing properties and the like can be obtained.
- metallocene ultra-low density polyethylene is preferable from the viewpoint of improvement of tensile elongation characteristics and the like.
- silane coupling agent examples include vinyl alkoxysilanes such as vinyltrimethoxysilane, vinyltriethoxysilane, and vinyltributoxysilane, normal hexyltrimethoxysilane, vinylacetoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ - Examples thereof include methacryloxypropylmethyldimethoxysilane. These may be used alone or in combination of two or more.
- the blending amount of the silane coupling agent is preferably in the range of 0.5 to 5 parts by mass, more preferably 3 to 5 parts by mass with respect to 100 parts by mass of the polyolefin to which the silane coupling agent is grafted. Within range.
- the blending amount of the silane coupling agent is less than 0.5 parts by mass, the graft amount of the silane coupling agent is small, and it is difficult to obtain a sufficient degree of crosslinking during silane crosslinking.
- the compounding amount of the silane coupling agent exceeds 5 parts by mass, the crosslinking reaction proceeds too much during kneading, and a gel-like substance is likely to be generated. If it does so, an unevenness
- the upper limit of the graft amount of the silane coupling agent is preferably from the viewpoint of foreign matter generation due to excessive crosslinking in the wire coating step, It is good that it is 15 mass% or less, More preferably, it is 10 mass% or less, More preferably, it is 5 mass% or less.
- the lower limit of the graft amount is preferably 0.1% by mass or more, more preferably 1% by mass or more, and still more preferably 2.5% from the viewpoint of the degree of crosslinking (gel fraction) of the wire coating. It is good if it is at least mass%.
- a method for grafting a silane coupling agent to polyolefin for example, a method of adding a free radical generator or the like to a polyolefin and a silane coupling agent and mixing them with a twin screw extruder or the like is generally used.
- a silane coupling agent can be grafted to the polyolefin using a method of adding a silane coupling agent.
- the free radical generator examples include dicumyl peroxide (DCP), benzoyl peroxide, dichlorobenzoyl peroxide, di-tert-butyl peroxide, butyl peracetate, tert-butyl perbenzoate, and 2,5-dimethyl-2. And organic peroxides such as 5-di (tert-butylperoxy) hexane. More preferred is dicumyl peroxide (DCP).
- DCP dicumyl peroxide
- the preparation temperature of the silane graft batch is preferably 200 ° C. or higher in order to graft polymerize the silane coupling agent to the polyolefin.
- the blending amount of the free radical generator is preferably in the range of 0.025 to 0.1 parts by mass with respect to 100 parts by mass of the silane-modified polyolefin.
- the blending amount of the free radical generator is less than 0.025 parts by mass, the grafting reaction of the silane coupling agent does not proceed sufficiently and it is difficult to obtain a desired gel fraction.
- the blending amount of the free radical generator exceeds 0.1 parts by mass, the ratio of cutting the molecular weight of the polyolefin increases and undesired peroxide crosslinking is likely to proceed.
- the crosslinking reaction of polyolefin will advance too much and will become uneven
- Unmodified polyolefin is a polyolefin that has not been modified by a silane coupling agent, a functional group, or the like. Specific polyolefin of the unmodified polyolefin can be exemplified by the polyolefin described above in (A), and detailed description thereof is omitted here.
- polyethylene such as VLDPE and LDPE, is preferable from the viewpoint of imparting flexibility to an electric wire and a good dispersion of a filler which is a flame retardant.
- (C) As specific polyolefin used for modified polyolefin, the polyolefin mentioned above in (A) can be illustrated, and detailed description here is abbreviate
- polyethylene such as VLDPE and LDPE is preferable because flexibility is imparted to the electric wire and the filler, which is a flame retardant, is well dispersed.
- Examples of the functional group include a carboxyl group, an acid anhydride group, an amino group, an epoxy group, a silane group, and a hydroxyl group.
- a carboxyl group, an acid anhydride group, an amino group, an epoxy group, and the like are preferable because they have high adhesion to a filler that is a flame retardant.
- modified polyolefins may contain one or more functional groups.
- the modified polyolefin may contain one or two or more of the same or different polyolefins modified with different functional groups and different polyolefins modified with the same functional groups.
- the functional group amount of the modified polyolefin is preferably 0.5 to 10 parts by mass with respect to 100 parts by mass of the polyolefin.
- the functional group amount of the modified polyolefin exceeds 10 parts by mass, the covering strip property at the time of processing the wire end may be deteriorated.
- the amount of the functional group of the modified polyolefin is less than 0.5 parts by mass, the modification effect by the functional group may be insufficient.
- Specific examples of the method for modifying the polyolefin with a functional group include a method in which a compound having a functional group is graft-polymerized to the polyolefin, or a compound having a functional group and an olefin monomer are copolymerized to obtain an olefin copolymer. Methods and the like.
- Specific examples of the compound that introduces a carboxyl group or an acid anhydride group as a functional group include ⁇ , ⁇ -unsaturated dicarboxylic acids such as maleic acid, fumaric acid, citraconic acid, and itaconic acid, or anhydrides thereof.
- Examples thereof include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, furanic acid, crotonic acid, vinyl acetic acid and pentenoic acid.
- Specific examples of compounds that introduce amino groups as functional groups include aminoethyl (meth) acrylate, propylaminoethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, and dibutylaminoethyl.
- Specific examples of compounds that introduce an epoxy group as a functional group include glycidyl acrylate, glycidyl methacrylate, itaconic acid monoglycidyl ester, butenetricarboxylic acid monoglycidyl ester, butenetricarboxylic acid diglycidyl ester, butenetricarboxylic acid triglycidyl.
- Glycidyl esters such as esters, ⁇ -chloroacrylic acid, maleic acid, crotonic acid, fumaric acid, glycidyl ethers such as vinyl glycidyl ether, allyl glycidyl ether, glycidyloxyethyl vinyl ether, styrene-p-glycidyl ether, p-glycidyl Examples include styrene.
- brominated flame retardants include ethylene bis (pentabromobenzene) [alias: bis (pentabromophenyl) ethane], tetrabromobisphenol A (TBBA), hexabromocyclododecane (HBCD), bis (Tetrabromophthalimide) ethane, TBBA-carbonate oligomer, TBBA-epoxy oligomer, brominated polystyrene, TBBA-bis (dibromopropyl ether), poly (dibromopropyl ether), hexabromobenzene and the like.
- pentabromobenzene [alias: bis (pentabromophenyl) ethane], tetrabromobisphenol A (TBBA), hexabromocyclododecane (HBCD), bis (Tetrabromophthalimide) ethane, TBBA-carbonate oligomer, TB
- a brominated flame retardant having a relatively high melting point has good flame retardancy, and specifically has a melting point of 200 ° C. or higher.
- Examples of the brominated flame retardant having a melting point of 200 ° C. or higher include ethylene bis (pentabromobenzene), bis (tetrabromophthalimide) ethane, TBBA-bis (dibromopropyl ether) and the like.
- the flame retardant may be at least a (D1) brominated flame retardant, but (D2) antimony trioxide may be added as a flame retardant aid.
- D2 A synergistic effect can be expected by using antimony trioxide in combination with a brominated flame retardant. It is preferable to use antimony trioxide having a purity of 99% or more. Antimony trioxide is used by pulverizing and atomizing antimony trioxide produced as a mineral. At that time, the average particle size is preferably 3 ⁇ m or less, more preferably 1 ⁇ m or less. If the average particle size of antimony trioxide is increased, the interface strength with the resin may be reduced.
- Antimony trioxide may be subjected to a surface treatment for the purpose of controlling the particle system or improving the interfacial strength with the resin.
- a surface treatment agent it is preferable to use a silane coupling agent, a higher fatty acid, a polyolefin wax, or the like.
- the crosslinking catalyst is a silanol condensation catalyst for silane-crosslinking the silane-grafted polyolefin.
- the crosslinking catalyst include metal carboxylates such as tin, zinc, iron, lead, and cobalt, titanate esters, organic bases, inorganic acids, and organic acids.
- crosslinking catalyst examples include dibutyltin dilaurate, dibutyltin dimaleate, dibutyltin mercaptide (dibutyltin bisoctylthioglycol ester salt, dibutyltin ⁇ -mercaptopropionate polymer, etc.), dibutyltin diacetate, dioctyl Tin dilaurate, stannous acetate, stannous caprylate, lead naphthenate, cobalt naphthenate, barium stearate, calcium stearate, tetrabutyl titanate, tetranonyl titanate, dibutylamine, hexylamine, pyridine, sulfuric acid , Hydrochloric acid, toluenesulfonic acid, acetic acid, stearic acid, maleic acid and the like.
- Preferred crosslinking catalysts are dibutyltin dilaurate, dibutyltin
- the addition amount of the crosslinking catalyst is preferably 0.5 to 5 parts by mass, more preferably 1 to 5 parts by mass with respect to 100 parts by mass of the silane-grafted polyolefin (A) which is a resin component of the catalyst batch. Within the range of the part. If the addition amount of the cross-linking catalyst is 0.5 parts by mass or more, an appropriate degree of cross-linking is obtained, and there is no possibility that the effect of improving heat resistance becomes insufficient. Moreover, if the addition amount of a crosslinking catalyst is 10 mass parts or less, there exists no possibility that an external appearance may become bad.
- phenolic antioxidant examples include monophenolic, bisphenolic, and polymeric phenolic compounds, with the polymeric phenolic being preferred.
- polymer type phenolic antioxidants hindered phenolic antioxidants
- the addition amount of the phenolic antioxidant is preferably in the range of 0.5 to 5 parts by mass with respect to 100 parts by mass in total of the resin components (A) + (B) + (C).
- (G1) zinc sulfide or (G2) zinc oxide and (G3) imidazole compound improve the heat resistance of the coating.
- ISO 6722 is an international standard used for electric wires for automobiles. According to this standard, electric wires for automobiles are classified from class A to class E according to the allowable heat-resistant temperature.
- an insulated wire is used as an automotive wire, for example, in applications where a high voltage is applied, such as a battery cable, the characteristics of a heat resistant temperature class of 125 ° C. class C and 150 ° C. of D class may be required.
- Addition of (G1) zinc sulfide or (G2) zinc oxide and (G3) imidazole compound is effective when such high heat resistance is required. The same heat resistance effect can be obtained by selecting either (G1) addition of zinc sulfide alone or (G2) combined use of zinc oxide and (G3) imidazole compound.
- Zinc oxide can be obtained, for example, by adding a reducing agent such as coke to zinc ore and oxidizing zinc vapor generated by firing with air, or using zinc sulfate or zinc chloride as a raw material.
- Zinc oxide is not particularly limited in its production method, and may be produced by any method.
- zinc sulfide those produced by known methods can be used.
- the average particle diameter of zinc oxide or zinc sulfide is preferably 3 ⁇ m or less, more preferably 1 ⁇ m or less. When the average particle size of zinc oxide or zinc sulfide is reduced, the interfacial strength with the resin is improved and the dispersibility is also improved.
- a benzimidazole compound containing sulfur can be suitably used as the (G3) imidazole compound.
- Specific examples include 2-mercaptobenzimidazole, 2-mercaptomethylbenzimidazole, 4-mercaptomethylbenzimidazole, 5-mercaptomethylbenzimidazole, and zinc salts thereof.
- Particularly preferred is 2-mercaptobenzimidazole and its zinc salt.
- the benzimidazole compound may have a substituent such as an alkyl group at another position of the benzimidazole skeleton.
- the amount of (G1) zinc sulfide or (G2) zinc oxide and (G3) imidazole compound added is within the following range with respect to a total of 100 parts by mass of the resin components (A) + (B) + (C). preferable. If the amount added is small, the effect of improving the heat resistance may not be sufficiently obtained. If the amount added is too large, the particles tend to aggregate, the appearance of the electric wire is deteriorated, and mechanical properties such as wear resistance are deteriorated. There is a risk of doing.
- (G2) Zinc oxide + (G3) imidazole compound 1-20 parts by mass, preferably 3-10 parts by mass
- (H) As the copper damage inhibitor an amine copper damage inhibitor such as 3- (N-salicyloyl) amino-1,2,4-triazole is used. By adding the (H) copper damage inhibitor to the composition, an effect of further improving the heat resistance can be obtained.
- the addition amount of the copper damage inhibitor is preferably in the range of 0.1 to 3 parts by mass with respect to 100 parts by mass in total of the resin components (A) + (B) + (C).
- one or more other additives used for general wire coating materials may be arbitrarily added to the wire coating material composition within a range that does not impair the wire properties.
- other additives include lubricants such as stearic acid, ultraviolet absorbers, processing aids (waxes, lubricants, etc.), flame retardant aids, pigments, and the like.
- an inorganic filler such as magnesium hydroxide, magnesium oxide, calcium carbonate, or the like can be added to adjust the hardness of the resin. As a result, it is possible to improve the workability of the coating, the high temperature deformation resistance, and the like.
- the addition amount of the inorganic filler is 30 parts by mass or less, preferably 10 parts by mass or less, with respect to a total of 100 parts by mass of the resin component (A) + (B) + (C), as an addition amount within a range not reducing the resin strength.
- the magnesium hydroxide includes natural magnesium hydroxide derived from a natural mineral obtained by pulverizing a mineral mainly composed of magnesium hydroxide, synthetic magnesium hydroxide synthesized from an Mg source contained in seawater, and the like. Can be used.
- the lubricant such as stearic acid is preferably 5 parts by mass or less, more preferably 3 parts by mass or less, with respect to 100 parts by mass of the resin component (A) + (B) + (C).
- the lubricant has an effect of improving the appearance of the electric wire, but if added in a large amount, the electric wire workability and the wire harness workability may be adversely affected.
- composition for a wire covering material comprising the above-mentioned components such as crosslinking catalyst, (G1) zinc sulfide or (G2) zinc oxide and (G3) imidazole compound, (H) copper damage inhibitor, and other additives.
- a conventional kneader such as a Banbury mixer, a pressure kneader, a kneading extruder, a twin screw extruder, or a roll can be used.
- the wire coating material composition may be prepared by separately preparing a water-crosslinkable batch and a flame retardant batch as described below, and mixing them together. That is, on the other hand, (A) water-crosslinkable polyolefin alone or water-crosslinkable polyolefin-forming material (polyolefin, silane coupling agent, free radical generator, etc.) is kneaded with heat to form a water-crosslinkable batch. On the other hand, (B) unmodified polyolefin, (C) modified polyolefin, (B1) bromine-based flame retardant, (D2) antimony trioxide and other components (D) except for flame retardant crosslinking catalysts are blended and heat-kneaded Use a flame retardant batch.
- A water-crosslinkable polyolefin alone or water-crosslinkable polyolefin-forming material (polyolefin, silane coupling agent, free radical generator, etc.) is kneaded with heat to form a water-
- a cross-linking catalyst is added to the water-crosslinkable batch and the flame retardant batch, the mixture is heated and kneaded, and the outer periphery of the obtained kneaded product conductor is extruded and coated to form an electric wire covering material. Thereafter, water crosslinking is performed to crosslink the molded product. Moreover, you may add a crosslinking catalyst to either a water-crosslinking batch or a flame retardant batch.
- each batch formed into a pellet shape can be dry blended using a mixer, an extruder, or the like.
- the wire coating material may be extrusion coated on the outer periphery of the conductor using a normal extrusion molding machine or the like.
- water cross-linking can be performed by exposing the wire covering material formed in the extrusion coating step to water vapor or water.
- the conditions for water crosslinking are preferably, for example, within 48 hours within a temperature range of room temperature to 90 ° C. More preferable water crosslinking conditions are within a temperature range of 60 to 80 ° C. and within a range of 12 to 24 hours.
- the insulated wire according to the present invention is provided with a wire covering material obtained by water-crosslinking the above composition for a wire covering material on the outer periphery of a conductor made of copper, copper alloy, aluminum, aluminum alloy or the like.
- the conductor is not particularly limited, such as the conductor diameter and the conductor material, and can be appropriately determined according to the application.
- covering material It can set suitably in consideration of a conductor diameter etc.
- the wire covering material may be a single layer or a plurality of layers.
- the wire covering material after water crosslinking preferably has a crosslinking degree of 50% or more from the viewpoint of heat resistance.
- a more preferable degree of crosslinking is 60% or more.
- the degree of crosslinking can be adjusted by the graft amount of the silane coupling agent of the silane-grafted polyolefin to be used, the type and amount of the crosslinking catalyst, silane crosslinking (water crosslinking) conditions (temperature and time), and the like.
- the wire harness which concerns on this invention has the insulated wire mentioned above.
- covered with the wire harness protective material can be illustrated.
- the number of wires included in a single wire bundle and a mixed wire bundle can be arbitrarily determined and is not particularly limited.
- the structure of other insulated wires included is not particularly limited.
- the wire covering material may have a single layer structure or a two layer structure.
- covering material of another insulated wire is not specifically limited, either.
- the wire harness protective material has a role of covering the outer periphery of the wire bundle and protecting the inner wire bundle from the external environment or the like, and an adhesive is provided on at least one surface of the tape-shaped base material. Examples thereof include those coated and those having a substrate formed in a tube shape, a sheet shape, or the like. These can be appropriately selected and used according to the application.
- the base material constituting the wire harness protective material include, for example, various non-halogen flame retardant resin compositions, vinyl chloride resin compositions, or halogen resin compositions other than the vinyl chloride resin compositions. Can be mentioned.
- test materials and manufacturers The test materials used in the present examples and comparative examples are shown together with the manufacturer, product name and the like.
- Silane graft PP “Linkron XPM800HM” manufactured by Mitsubishi Chemical Corporation [2] Silane Graft PE1: “Ringlon XLE815N (LLDPE)” manufactured by Mitsubishi Chemical Corporation [3] Silane graft PE2: “Linkron XCF710N (LDPE)” manufactured by Mitsubishi Chemical Corporation [4] Silane graft PE3: “Ringlon QS241HZ (HDPE)” manufactured by Mitsubishi Chemical Corporation [5] Silane graft PE4: “Lychron SH700N (VLDPE)” manufactured by Mitsubishi Chemical Corporation [6] Silane graft EVA: “Linkron XVF600N” manufactured by Mitsubishi Chemical Corporation [7] PP elastomer: New Poly NAR6 manufactured by Nippon Polypro Co., Ltd.
- PE1 VLDPE: manufactured by DuPont Dow Elastomer Japan, “Engage 8003”
- PE2 LDPE: Nippon Unicar Company, “NUC8122”
- PE3 LLDPE: “Ultzex 10100W” manufactured by Prime Polymer Co., Ltd.
- Maleic acid-modified PE “Modic AP512P” manufactured by NOF Corporation
- Epoxy-modified PE “Bond First E (E-GMA)” manufactured by Sumitomo Chemical Co., Ltd.
- Brominated flame retardant 3 Tetrabromobisphenol A: “SAYTEXCP2000” manufactured by Albemarle
- Antimony trioxide manufactured by Yamanaka Sangyo Co., Ltd.
- Antimony trioxide MSW grade [18] Magnesium hydroxide: “Kisuma 5” manufactured by Kyowa Chemical Co., Ltd.
- Lubricant 1 erucic acid amide: “Alflow P10” manufactured by NOF Corporation [27]
- Lubricant 2 Stearamide: “Alflow S10” manufactured by NOF Corporation [28]
- Cross-linking catalyst "Linkron LZ0515H” manufactured by Mitsubishi Chemical Corporation
- the gel fraction was measured according to JASO (Japanese Automobile Industry Standard) -D608-92. That is, about 0.1 g of an insulation coating sample of an insulated wire is weighed and placed in a test tube, 20 ml of xylene is added and heated in a constant temperature oil bath at 120 ° C. for 24 hours. Thereafter, the sample was taken out, dried in a dryer at 100 ° C. for 6 hours, and allowed to cool to room temperature. Then, the mass was precisely weighed, and the mass percentage with respect to the mass before the test was taken as the gel fraction. A case where the gel fraction was 50% or more was evaluated as “good”, and a case where the gel fraction was less than 50% was determined as “failed”.
- the gel fraction is generally used for crosslinked electric wires as an index representing the crosslinked state of water crosslinking.
- the design outer diameter can be obtained even when the wire speed is 50 m / min or more.
- the pass is “Good”, 300% or more is “Good”, and the design outer diameter is 50 m / min or more. The case where it was not obtained was set as rejected "x".
- the tensile elongation was measured according to the tensile test of JIS C 3005.
- JIS C 3005. an insulated wire is cut to a length of 100 mm, a conductor is removed to form a tubular test piece made only of a wire covering material, and both ends of the test piece are attached to a chuck of a tensile tester at room temperature of 23 ⁇ 5 ° C. After that, the test piece was pulled at a pulling rate of 200 mm / min, and the load and elongation at break of the test piece were measured.
- Comparative Example 1 does not contain a brominated flame retardant as compared with Example 1. Therefore, it is inferior to flame retardancy.
- Comparative Example 2 does not contain zinc sulfide as compared with Example 2. Therefore, the heat resistance is poor, and neither the ISO long-term heat test nor the JASO long-term heat test is acceptable.
- Comparative Example 3 does not contain a crosslinking catalyst as compared with Example 3. Therefore, the gel fraction is low, and all of the electric wire surface roughness, the ISO long-term heat test, the JASO long-term heat test, and the wear resistance are unacceptable.
- Comparative Example 4 uses unmodified polyolefin instead of silane-grafted polyolefin as compared with Example 4. Does not contain water-crosslinkable polyolefin. Therefore, since it is a state of a non-bridging electric wire, all of a gel fraction, an ISO long-term heating test, and a JASO long-term heating test are rejected.
- Comparative Example 5 does not contain an antioxidant, copper damage inhibitor and zinc sulfide as compared with Example 5. For this reason, neither the ISO long-term heat test nor the JASO long-term heat test is acceptable.
- Comparative Example 6 is inferior in flame retardancy and productivity because it does not contain a flame retardant or unmodified polyolefin.
- Examples 1 to 6 have good properties and are excellent in productivity and heat resistance.
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Abstract
Description
(A)ポリオレフィンがシランカップリング剤により変性された水架橋性ポリオレフィン
(B)未変性ポリオレフィン
(C)官能基により変性された変性ポリオレフィン
(D)難燃剤
(E)架橋触媒
(F)フェノール系酸化防止剤
(G)(G1)硫化亜鉛、或いは(G2)酸化亜鉛及び(G3)イミダゾ-ル化合物
を含み、
前記(D)難燃剤が(D1)臭素系難燃剤を含むことを要旨とするものである。
(A)ポリオレフィンがシランカップリング剤により変性された水架橋性ポリオレフィン
(B)未変性ポリオレフィン
(C)官能基により変性された変性ポリオレフィン
(D)難燃剤
(E)架橋触媒
(F)フェノール系酸化防止剤
(G)(G1)硫化亜鉛、或いは(G2)酸化亜鉛及び(G3)イミダゾ-ル化合物
を含み、
前記(D)難燃剤が(D1)臭素系難燃剤を含むものである。
そのため、組成物から難燃性樹脂被膜を形成する際に、電子線架橋を用いずに設備の安価な水架橋により形成することができる。
(A)ポリオレフィンがシランカップリング剤により変性された水架橋性ポリオレフィン
(B)未変性ポリオレフィン
(C)官能基により変性された変性ポリオレフィン
(D)難燃剤として(D1)臭素系難燃剤、或いは(D1)臭素系難燃剤及び(D2)三酸化アンチモン
(E)架橋触媒
(F)フェノール系酸化防止剤
(G)(G1)硫化亜鉛、或いは(G2)酸化亜鉛及び(G3)イミダゾ-ル化合物
(H)銅害防止剤
(A)水架橋性ポリオレフィン:30~90質量部、好ましくは40~80質量部、より好ましくは50~70質量部
(B)未変性ポリオレフィン+(C)変性ポリオレフィン:70~10質量部、好ましくは60~20質量部、より好ましくは50~30質量部
上記(A)、(B)及び(C)成分の合計を100質量部とした場合、
(D1)臭素系難燃剤:10~70質量部、好ましくは10~50質量部、より好ましくは10~30質量部
(G1)硫化亜鉛:1~20質量部、好ましくは3~10質量部
(G2)酸化亜鉛+(G3)イミダゾ-ル化合物の合計:1~20質量部、好ましくは3~10質量部
本実施例および比較例において使用した供試材料を製造元、商品名等とともに示す。
〔2〕シラングラフトPE1:三菱化学社製、「リンクロンXLE815N(LLDPE)」
〔3〕シラングラフトPE2:三菱化学社製、「リンクロンXCF710N(LDPE)」
〔4〕シラングラフトPE3:三菱化学社製、「リンクロンQS241HZ(HDPE)」
〔5〕シラングラフトPE4:三菱化学社製、「リンクロンSH700N(VLDPE)」
〔6〕シラングラフトEVA:三菱化学社製、「リンクロンXVF600N」
〔7〕PPエラストマー:日本ポリプロ社製、「ニューコンNAR6」
〔8〕PE1:VLDPE:デュポンダウエラストマージャパン社製、「エンゲージ8003」
〔9〕PE2:LDPE:日本ユニカー社製、「NUC8122」
〔10〕PE3:LLDPE:プライムポリマー社製、「ウルトゼックス10100W」
〔11〕マレイン酸変性PE:日本油脂社製、「モディックAP512P」
〔12〕エポキシ変性PE:住友化学社製、「ボンドファーストE(E-GMA)」
〔13〕マレイン酸変性PP:三菱化学社製、「アドマーQB550]
〔14〕臭素系難燃剤1:エチレンビス(ペンタブロモベンゼン):アルベマール社製、「SAYTEX8010」
〔15〕臭素系難燃剤2:TBBA-ビス(ジブロモプロピルエーテル):鈴裕化学社製「FCP-680」
〔16〕臭素系難燃剤3:テトラブロモビスフェノールA:アルベマール社製、「SAYTEXCP2000」
〔17〕三酸化アンチモン:山中産業社製、「三酸化アンチモンMSWグレード」
〔18〕水酸化マグネシウム:協和化学社製、「キスマ5」
〔19〕炭酸カルシウム:白石カルシウム社製、「Vigot15」
〔20〕酸化防止剤1:チバジャパン社製、「イルガノックス1010」
〔21〕酸化防止剤2:チバジャパン社製、「イルガノックス1330」
〔22〕銅害防止剤:ADEKA社製、「CDA-1」
〔23〕酸化亜鉛:ハクスイテック社製、「亜鉛華二種」
〔24〕硫化亜鉛:Sachtleben Chemie Gmbh製、「SachtolithHD-S」
〔25〕添加剤:ベンズイミダゾール系化合物:川口化学工業社製、「アンテージMB」
〔26〕潤滑剤1:エルカ酸アミド:日本油脂社製、「アルフローP10」
〔27〕潤滑剤2:ステアリン酸アミド:日本油脂社製、「アルフローS10」
〔28〕架橋触媒:三菱化学社製、「リンクロンLZ0515H」
表1、2に示す実施例、比較例のA欄に示す配合割合となるように、各材料を二軸押出混練機に加え、200℃で0.1~2分間加熱混練した後、ペレット化し、各難燃剤バッチを調製した。
上記A欄の配合割合の難燃剤バッチと、表1、2の実施例、比較例のB欄に示す配合割合のシラングラフトポリオレフィン(比較例1は添加せず)と架橋触媒とを押出機のホッパーで混合して押出機の温度を約180℃~200℃に設定して、押出加工を行なった。外径2.4mmの導体上に厚さ0.7mmの絶縁体として押出被覆した(被覆外径3.8mm)。その後、60℃、95%湿度の高湿高温槽で24時間水架橋処理を施して絶縁電線を作製した。得られた各絶縁電線について、下記の項目を評価した。
JASO(日本自動車工業規格)-D608-92に準拠して、ゲル分率を測定した。すなわち、絶縁電線の絶縁被膜試料を約0.1g秤量しこれを試験管に入れ、キシレン20mlを加えて、120℃の恒温油槽中で24時間加熱する。その後試料を取り出し、100℃の乾燥器内で6時間乾燥後、常温になるまで放冷してから、その質量を精秤し、試験前の質量に対する質量百分率をもってゲル分率とした。ゲル分率50%以上であった場合を合格「○」、ゲル分率50%未満であった場合を不合格「×」とした。なお、ゲル分率は、水架橋の架橋状態を表す指標として架橋電線に一般的に用いられている。
電線押出時に線速度を増減し、線速度50m/min以上でも設計外径が得られる場合を合格「○」、300%以上を良好「◎」とし、線速度50m/min以上で設計外径が得られない場合を不合格「×」とした。
ISO6722に準拠し、70秒以内に消火する場合を合格「○」、70秒を越えて消火する場合を不合格「×」とした。
電線外観の評価である。針形の検出器を用いて、絶縁電線の表面の平均粗さ(Ra)を測定し、Ra=1μm未満の場合を表面粗さが良好であるとして「○」、Ra=0.5μm未満の場合を表面粗さに優れるとして「◎」とし、Ra=1μm超の場合を不良「×」とした。表面粗さの測定は、Mitsutoyo社製「サーフテストSJ301」を使用した。
JIS C 3005の引張試験に準拠して、引張伸びを測定した。すなわち、絶縁電線を100mmの長さに切り出し、導体を取り除いて電線被覆材のみの管状試験片とした後、23±5℃の室温下にて、試験片の両端を引張試験機のチャックに取り付けた後、引張速度200mm/分で引っ張り、試験片の破断時の荷重および伸びを測定した。引張伸びが125%以上であった場合を合格「○」、とりわけ300%以上であった場合を良好「◎」とした。引張伸びが125%未満であった場合を不合格「×」とした。
ISO6722に準拠し、絶縁電線に対して150℃×3000時間の老化試験を行った後、1kv×1min.の耐電圧試験を行った。老化時間3000時間後に1kv×1min.の耐電圧試験に耐えることができた場合を「○」、耐えることができなかった場合を「×」とした。
JASO-D609に準拠し、絶縁電線に対して150℃×10000時間の老化試験を行った後、上記引張り伸びの試験と同条件で引張り伸びを測定した。試験の結果、引張り伸びが100%以上のものを合格「○」、100%未満のものを不合格「×」とした。
ISO6722に準拠し、500回以上のブレード磨耗に耐えられた場合を合格「○」、耐えられなかった場合を不合格「×」とした。
Claims (10)
- (A)ポリオレフィンがシランカップリング剤により変性された水架橋性ポリオレフィン
(B)未変性ポリオレフィン
(C)官能基により変性された変性ポリオレフィン
(D)難燃剤
(E)架橋触媒
(F)フェノール系酸化防止剤
(G)(G1)硫化亜鉛、或いは(G2)酸化亜鉛及び(G3)イミダゾ-ル化合物
を含み、
前記(D)難燃剤が(D1)臭素系難燃剤を含むことを特徴とする電線被覆材用組成物。 - 前記(D)難燃剤が更に(D2)三酸化アンチモンを含むことを特徴とする請求項1記載の電線被覆材用組成物。
- 更に(H)銅害防止剤を含むことを特徴とする請求項1又は2に記載の電線被覆材用組成物。
- 前記(A)水架橋性ポリオレフィン30~90質量部、
前記(B)未変性ポリオレフィンと前記(C)官能基により変性された変性ポリオレフィンとを合計で10~70質量部、
前記(A)、(B)及び(C)の合計100質量部に対し、
前記(D1)臭素系難燃剤10~70質量部を含むことを特徴とする請求項1~3のいずれか1項に記載の電線被覆材用組成物。 - 前記(D1)臭素系難燃剤が、エチレンビス(ペンタブロモベンゼン)、ビス(テトラブロモフタルイミド)エタン、テトラブロモビスフェノールA-ビス(ジブロモプロピルエーテル)から選択される1種又は2種以上であることを特徴とする請求項1~4のいずれか1項に記載の電線被覆材用組成物。
- 前記(C)官能基により変性された変性ポリオレフィンの官能基は、カルボン酸基、酸無水物基、アミノ基及びエポキシ基から選択される1種又は2種以上であることを特徴とする請求項1~5のいずれか1項に記載の電線被覆材用組成物。
- 前記(A)水架橋性ポリオレフィンに用いられるポリオレフィンは、超低密度ポリエチレン、直鎖状低密度ポリエチレン及び低密度ポリエチレンから選択される1種又は2種以上であることを特徴とする請求項1から6のいずれか1項に記載の電線被覆材用組成物。
- 請求項1から7のいずれか1項に記載の電線被覆材用組成物が水架橋されてなる電線被覆材を有することを特徴とする絶縁電線。
- 前記電線被覆材が、少なくとも前記(B)未変性ポリオレフィン、前記(C)官能基により変性された変性ポリオレフィン、前記(D1)臭素系難燃剤を含む難燃剤バッチと、前記(A)水架橋性ポリオレフィンと、架橋触媒とを混練し、電線の導体の周囲に被覆材として成形された後、該被覆材が水架橋されたものであることを特徴とする請求項8記載の絶縁電線。
- 請求項8又は9に記載の絶縁電線を有することを特徴とするワイヤーハーネス。
Priority Applications (3)
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DE112011100601.2T DE112011100601B4 (de) | 2010-02-18 | 2011-02-15 | Zusammensetzung für eine Leitungsbeschichtung und deren Verwendung zur Herstellung einer isolierten Leitung und eines Kabelstrangs |
CN201180010115.3A CN102762650B (zh) | 2010-02-18 | 2011-02-15 | 电线包覆构件用组合物、绝缘电线和线束 |
US13/520,516 US9093197B2 (en) | 2010-02-18 | 2011-02-15 | Composition for wire coating member, insulated wire, and wiring harness |
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JP2010033817A JP5593730B2 (ja) | 2010-02-18 | 2010-02-18 | 電線被覆材用組成物、絶縁電線およびワイヤーハーネス |
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US9093197B2 (en) | 2010-02-18 | 2015-07-28 | Autonetworks Technologies, Ltd. | Composition for wire coating member, insulated wire, and wiring harness |
US20130161064A1 (en) * | 2010-09-10 | 2013-06-27 | Autonetworks Technologies, Ltd. | Composition for wire coating material, insulated wire, and wiring harness |
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CN104254892A (zh) * | 2012-04-27 | 2014-12-31 | 株式会社自动网络技术研究所 | 电线保护材料用组合物、电线保护材料以及线束 |
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US9093197B2 (en) | 2015-07-28 |
DE112011100601T5 (de) | 2013-01-31 |
CN102762650B (zh) | 2014-06-18 |
US20120273268A1 (en) | 2012-11-01 |
DE112011100601B4 (de) | 2017-06-01 |
CN102762650A (zh) | 2012-10-31 |
JP2011168697A (ja) | 2011-09-01 |
JP5593730B2 (ja) | 2014-09-24 |
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