WO2014083883A1 - Fil électrique isolé - Google Patents

Fil électrique isolé Download PDF

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Publication number
WO2014083883A1
WO2014083883A1 PCT/JP2013/069141 JP2013069141W WO2014083883A1 WO 2014083883 A1 WO2014083883 A1 WO 2014083883A1 JP 2013069141 W JP2013069141 W JP 2013069141W WO 2014083883 A1 WO2014083883 A1 WO 2014083883A1
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WO
WIPO (PCT)
Prior art keywords
calcium carbonate
magnesium hydroxide
insulating layer
carbonate powder
silicone rubber
Prior art date
Application number
PCT/JP2013/069141
Other languages
English (en)
Japanese (ja)
Inventor
野中　毅
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Priority to DE112013005679.8T priority Critical patent/DE112013005679B4/de
Priority to JP2014550047A priority patent/JP6015772B2/ja
Publication of WO2014083883A1 publication Critical patent/WO2014083883A1/fr

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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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • 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
    • 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
    • H01B3/46—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 silicones
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate

Definitions

  • the present invention relates to an insulated wire, and more particularly to an insulated wire that is suitably used for vehicles such as automobiles.
  • Insulating materials for insulated wires used in vehicles such as automobiles are required to have various characteristics such as mechanical characteristics, flame retardancy, heat resistance, and cold resistance.
  • a material containing halogen such as a compound containing a vinyl chloride resin or a halogen-based flame retardant is often used.
  • This kind of insulating material contains halogen, so it may generate corrosive gas when incinerated. Therefore, there is an attempt to use an insulating material that does not contain a halogen from the viewpoint of environmental protection.
  • Patent Document 1 describes that a non-halogen insulating material in which aluminum hydroxide is blended with uncrosslinked silicone rubber is used as an insulating material for an insulated wire. Since this non-halogenous insulating material contains uncrosslinked silicone rubber, it is necessary to crosslink the uncrosslinked silicone rubber by heating after coating the outer periphery of the conductor.
  • the crystal water of aluminum hydroxide is released by heating when the uncrosslinked silicone rubber is cross-linked, and dehydration occurs, and the generated water foams the insulating material. There is.
  • the insulating material is foamed, the insulating layer becomes defective in appearance, and various physical properties may be deteriorated.
  • a rubber material silicone rubber
  • silicone rubber is liable to swell when it comes into contact with gasoline, resulting in poor gasoline resistance.
  • the problem to be solved by the present invention is an insulated wire having an insulating layer containing a crosslinked silicone rubber, which suppresses deterioration of various physical properties due to poor appearance of the insulating layer caused by foaming at the time of crosslinking, as well as cold resistance and wear resistance. It is to provide an insulated wire that is also excellent in heat resistance and gasoline resistance.
  • an insulated wire according to the present invention is an insulated wire in which the conductor is covered with an insulating layer containing a crosslinked silicone rubber, and the insulating layer is hydroxylated by a surface treatment agent made of an organic polymer.
  • the gist of the invention is that it contains surface-treated magnesium hydroxide and calcium carbonate powder that have been surface-treated with magnesium.
  • the average particle size of the calcium carbonate powder is preferably 1 ⁇ m or less.
  • the calcium carbonate powder is preferably a surface-treated calcium carbonate powder surface-treated with a fatty acid, rosin acid or a silane coupling agent.
  • the content of the calcium carbonate powder is preferably in the range of 0.1 to 100 parts by mass with respect to 100 parts by mass of the crosslinked silicone rubber.
  • the content of the surface-treated magnesium hydroxide is preferably in the range of 0.1 to 100 parts by mass with respect to 100 parts by mass of the crosslinked silicone rubber.
  • the organic polymer as the surface treatment agent is preferably at least one selected from polyethylene, polypropylene, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate copolymer, and derivatives thereof.
  • the coating amount of the surface treatment agent on magnesium hydroxide is preferably in the range of 0.1 to 10% by mass as a proportion of the entire surface treatment magnesium hydroxide.
  • the insulated wire according to the present invention includes a surface-treated magnesium hydroxide and a calcium carbonate powder in which magnesium hydroxide is surface-treated with a surface treatment agent made of an organic polymer in an insulating layer containing a crosslinked silicone rubber.
  • Magnesium hydroxide is not dehydrated like aluminum hydroxide when heated during crosslinking of silicone rubber. That is, the temperature at which magnesium hydroxide is dehydrated is higher than the temperature at which aluminum hydroxide is dehydrated, and there is no fear of dehydration at the temperature of heat crosslinking of silicone rubber, unlike aluminum hydroxide. Therefore, according to the insulated wire according to the present invention, an appearance defect of the insulating layer due to dehydration of magnesium hydroxide does not occur, and a good appearance can be obtained. Thereby, the fall of various physical properties is suppressed.
  • magnesium hydroxide is surface-treated with a surface treatment agent made of an organic polymer, it is excellent in dispersibility of magnesium hydroxide in silicone rubber. Thereby, it is excellent in cold resistance.
  • the dispersibility of magnesium hydroxide is good, the load at the time of kneading silicone rubber and magnesium hydroxide becomes small, and the temperature rise at the time of kneading can be suppressed.
  • the wear resistance and gasoline resistance are improved.
  • the calcium carbonate powder is surface-treated with a fatty acid, rosin acid or a silane coupling agent, aggregation of the calcium carbonate fine particles can be suppressed, and it is more effective in improving wear resistance and gasoline resistance.
  • content of a calcium carbonate powder exists in a specific range, the improvement of abrasion resistance can be aimed at, suppressing the fall of cold resistance.
  • the insulated wire according to the present invention has a conductor and an insulating layer covering the periphery of the conductor.
  • the insulating layer contains a crosslinked silicone rubber, magnesium hydroxide as a flame retardant, and calcium carbonate powder.
  • Magnesium hydroxide is surface-treated with a surface treatment agent made of an organic polymer.
  • This insulating layer is formed using a rubber composition for an insulating layer containing uncrosslinked silicone rubber.
  • the uncrosslinked silicone rubber may be either a millable type (heat-crosslinked type) that becomes an elastic body by kneading a cross-linking agent and then heat-crosslinked, or a liquid rubber type that is liquid before cross-linking.
  • the liquid rubber type silicone rubber includes a room temperature crosslinking type (RTV) capable of crosslinking near room temperature and a low temperature crosslinking type (LTV) capable of crosslinking when heated near 100 ° C. after mixing.
  • millable silicone rubber As the uncrosslinked silicone rubber, millable silicone rubber is preferable. Millable silicone rubber has the advantage that the crosslinking temperature is relatively high at 180 ° C. or higher and the stability is good, so that it is easy to mix during kneading and has excellent workability. On the other hand, since the liquid rubber type silicone rubber has a low crosslinking temperature of about 120 ° C., it is necessary to suppress heat generation at the time of kneading with low stability. Somewhat inferior. Millable silicone rubber is a commercially available rubber compound that contains linear organopolysiloxane as the main raw material (raw rubber) and contains reinforcing filler, filler, dispersion accelerator, and other additives. May be.
  • Magnesium hydroxide is synthesized from seawater by crystal growth method, synthetic magnesium hydroxide such as one synthesized by reaction of magnesium chloride and calcium hydroxide, or natural magnesium hydroxide obtained by pulverizing naturally produced minerals. be able to.
  • the surface-treated magnesium hydroxide is surface-treated, secondary aggregation is suppressed even in the case of fine particles, and fine particles may be used.
  • the particle size is preferably 0.1 ⁇ m or more. More preferably, it is 0.2 ⁇ m or more, and further preferably 0.5 ⁇ m or more. Further, from the viewpoint of being superior in surface smoothness of the insulating layer, the average particle diameter is preferably 20 ⁇ m or less. More preferably, it is 10 micrometers or less, More preferably, it is 5 micrometers or less.
  • the organic polymer as the surface treatment agent is preferably a hydrocarbon resin such as a paraffin resin or an olefin resin.
  • the hydrocarbon resin include homopolymers of ⁇ -olefins such as 1-heptene, 1-octene, 1-nonene, and 1-decene, interpolymers, or mixtures thereof, polypropylene (PP ), Polyethylene (PE), ethylene-ethyl acrylate copolymer (EEA), ethylene-vinyl acetate copolymer (EVA), and derivatives thereof.
  • the surface treating agent should just contain 1 or more types of the said resin at least.
  • the organic polymer as the surface treatment agent may be modified.
  • an unsaturated carboxylic acid or a derivative thereof can be used.
  • Specific examples of the unsaturated carboxylic acid include maleic acid and fumaric acid.
  • Examples of the derivative of unsaturated carboxylic acid include maleic anhydride (MAH), maleic acid monoester, maleic acid diester and the like. Of these, maleic acid and maleic anhydride are preferred.
  • These organic polymer modifiers as the surface treatment agent may be used alone or in combination of two or more.
  • Examples of a method for introducing an acid into an organic polymer as a surface treatment agent include a graft method and a direct method.
  • the acid modification amount is 0.1 to 20% by mass, preferably 0.2 to 10% by mass, and more preferably 0.2 to 5% by mass of the organic polymer as the surface treating agent.
  • the surface treatment method using a surface treatment agent for magnesium hydroxide is not particularly limited.
  • the surface treatment method of magnesium hydroxide for example, the surface treatment may be performed on magnesium hydroxide having a predetermined particle diameter, or at the same time as synthesis.
  • the wet process using a solvent may be sufficient and the dry process which does not use a solvent may be sufficient.
  • suitable solvents include aliphatic solvents such as pentane, hexane, and heptane, and aromatic solvents such as benzene, toluene, and xylene.
  • the coating amount of surface treatment agent on magnesium hydroxide depends on the particle size, but from the viewpoint of easy aggregation of magnesium hydroxide particles, the entire surface treatment magnesium hydroxide It is preferable that the proportion in the range of 0.1 to 10% by mass.
  • the content of the surface-treated magnesium hydroxide is preferably in the range of 0.1 to 100 parts by mass with respect to 100 parts by mass of the crosslinked rubber. More preferably, it is in the range of 0.5 to 95 parts by mass.
  • the content of the surface-treated magnesium hydroxide is 0.1 parts by mass or more, excellent flame retardancy can be secured. Further, when the content of the surface-treated magnesium hydroxide is 100 parts by mass or less, flame retardancy can be improved while suppressing a decrease in cold resistance.
  • the calcium carbonate powder is effective in improving the strength of the insulating layer containing the crosslinked silicone rubber.
  • Abrasion resistance can be improved by improving the strength of the insulating layer. That is, by blending calcium carbonate powder that is harder to be scraped than the crosslinked silicone rubber, the strength of the insulating layer is improved and the wear resistance is enhanced. Further, the calcium carbonate powder can improve the gasoline resistance of the insulating layer. This is presumably because the calcium carbonate powder suppresses the penetration of gasoline into the silicone rubber and suppresses the swelling of the silicone rubber by the gasoline.
  • the abrasion of the insulating layer is caused by the calcium carbonate powder falling off from the insulating layer.
  • the calcium carbonate powder has a smaller particle size. This is because the insulating layer is excellent in surface smoothness, and the calcium carbonate powder is difficult to drop off from the surface of the insulating layer when subjected to frictional force. Moreover, since the bulk increases as the particle size of the calcium carbonate powder is smaller, the effect of suppressing the penetration of gasoline into the silicone rubber by the calcium carbonate powder in the unit mass is further enhanced.
  • the particle size of the calcium carbonate powder when the particle size of the calcium carbonate powder is small, the dispersibility of the calcium carbonate powder in the insulating layer can be increased, which is more effective in improving wear resistance. Moreover, when the particle size is small, the decrease in elongation after thermal degradation of the insulating layer is small, and the heat resistance is also excellent.
  • the surface treatment with a surface treatment agent such as a fatty acid, rosin acid or a silane coupling agent suppresses the aggregation of the calcium carbonate fine particles, and is effective in improving the wear resistance.
  • the average particle diameter of the calcium carbonate powder is preferably 1 ⁇ m or less. More preferably, it is 0.5 micrometer or less, More preferably, it is 0.1 micrometer or less.
  • the lower limit of the average particle size of the calcium carbonate powder is not particularly limited, but is preferably 0.001 ⁇ m or more, more preferably 0.005 ⁇ m or more, and still more preferably 0.00 from the viewpoint of excellent handling properties. It is 01 ⁇ m or more.
  • Calcium carbonate powder includes synthetic calcium carbonate made by chemical reaction and heavy calcium carbonate made by grinding limestone.
  • Synthetic calcium carbonate can be used as fine particles having a primary particle size of submicron or less (about several tens of nanometers) by performing a surface treatment with a surface treatment agent such as a fatty acid, rosin acid, or a silane coupling agent.
  • the average particle diameter of the surface-treated fine particles is expressed by a primary particle diameter.
  • the primary particle diameter can be measured by observation with an electron microscope.
  • Heavy calcium carbonate is a pulverized product, and does not need to be surface-treated with a fatty acid or the like.
  • the average particle diameter can be measured by an air permeation method.
  • As the calcium carbonate powder either synthetic calcium carbonate or heavy calcium carbonate can be used.
  • the base rubber material is silicone rubber
  • the use of a silane coupling agent as a surface treatment agent for surface treatment of calcium carbonate powder improves the dispersibility of the calcium carbonate powder with respect to the silicone rubber, so Improves the adhesive strength. As a result, properties such as cold resistance and wear resistance of the insulating layer can be further improved.
  • the content of calcium carbonate powder is preferably in the range of 0.1 to 100 parts by mass with respect to 100 parts by mass of the crosslinked silicone rubber. More preferably, it is in the range of 1 to 95 parts by mass, and still more preferably in the range of 5 to 90 parts by mass.
  • the content of calcium carbonate powder is small, the effect of enhancing wear resistance and gasoline resistance tends to be lowered. In addition, kneading with silicone rubber tends to take time. When there is much content of calcium carbonate powder, cold resistance will fall easily by the fall of elongation.
  • the content of the calcium carbonate powder is within a specific range, it is possible to improve wear resistance and gasoline resistance while suppressing a decrease in cold resistance.
  • the calcium carbonate powder is not particularly limited, and examples thereof include synthetic calcium carbonate and heavy calcium carbonate manufactured by Shiroishi Calcium. More specifically, as synthetic calcium carbonate, white gloss flower CC (primary particle diameter 0.05 ⁇ m), white gloss flower CCR (primary particle diameter 0.08 ⁇ m), white gloss flower CCR-B (primary particle diameter 0.08 ⁇ m), white gloss flower O ( Primary particle size 0.03 ⁇ m), white glossy DD (primary particle size 0.05 ⁇ m), and the like. These are surface-treated with a surface treatment agent. Examples of heavy calcium carbonate include Softon 3200 (average particle size 0.7 ⁇ m), Softon 2600 (average particle size 0.85 ⁇ m), Softon 2200 (average particle size 1.0 ⁇ m), and the like.
  • the calcium carbonate powder includes R heavy coal (average particle size 7.4 ⁇ m), heavy coal N-35 (average particle size 6.3 ⁇ m), heavy calcium carbonate (average particle size 3.2 ⁇ m) manufactured by Maruo Calcium Co., Ltd. ), Super S (average particle size 2.7 ⁇ m), Super # 1500 (average particle size 1.5 ⁇ m), and the like. These are heavy calcium carbonates and are not surface-treated with a surface treatment agent.
  • the uncrosslinked silicone rubber can be crosslinked by heating or the like, but may be crosslinked using a crosslinking agent (vulcanizing agent).
  • the crosslinking agent can be appropriately selected according to the type of uncrosslinked rubber, the crosslinking conditions, and the like.
  • examples of the crosslinking agent include radical generators such as organic peroxides, compounds such as metal soaps, amines, thiols, thiocarbamates, and organic carboxylic acids.
  • an organic peroxide or the like is preferable from the viewpoint of improving the crosslinking rate.
  • organic peroxides examples include dialkyl peroxides such as dihexyl peroxide, dicumyl peroxide, t-butylcumyl peroxide, and 2,5-dimethyl-2,5-bis (t-butylperoxy) hexane.
  • dialkyl peroxides such as dihexyl peroxide, dicumyl peroxide, t-butylcumyl peroxide, and 2,5-dimethyl-2,5-bis (t-butylperoxy) hexane.
  • peroxyketals such as oxide and n-butyl 4,4-di (t-butyl peroxide) valerate.
  • the amount of the crosslinking agent can be determined as appropriate.
  • the amount of the crosslinking agent is preferably in the range of 0.01 to 10% by mass with respect to the total amount of uncrosslinked rubber and crosslinking agent, for example.
  • the insulating layer may contain various additives in addition to the crosslinked rubber and the specific flame retardant as long as the properties of the insulating layer are not impaired.
  • the common additive used for the insulating layer of an insulated wire can be mentioned.
  • other flame retardants, crosslinking agents, fillers, antioxidants, anti-aging agents, pigments and the like can be mentioned.
  • the insulated wire according to the present invention can be manufactured, for example, as follows. That is, first, a rubber composition for an insulating layer for forming an insulating layer is prepared. Next, the prepared rubber composition is extruded around the conductor to form a coating layer containing uncrosslinked rubber around the conductor. Next, the uncrosslinked rubber of the coating layer is crosslinked by crosslinking means such as heating. Thereby, the insulated wire by which the circumference
  • the insulated wire according to the present invention can also be formed by coating a rubber composition for an insulating layer around a conductor to form a coating layer, and crosslinking the uncrosslinked rubber of the coating layer by a crosslinking means such as heating. Can be manufactured.
  • the rubber composition for the insulating layer can be prepared by kneading uncrosslinked silicone rubber, magnesium hydroxide, calcium carbonate powder, and various additives such as a crosslinking agent blended as necessary. it can.
  • a conventional kneader such as a Banbury mixer, a pressure kneader, a kneading extruder, a biaxial kneading extruder, or a roll can be used.
  • an electric wire extruding machine or the like used for manufacturing a normal insulated wire can be used.
  • What is used for a normal insulated wire can be utilized for a conductor.
  • a single wire conductor or a stranded wire conductor made of a copper-based material or an aluminum-based material can be used.
  • the diameter of a conductor, the thickness of an insulating layer, etc. are not specifically limited, According to the use etc. of an insulated wire, it can determine suitably.
  • the insulated wire according to the present invention having the above-described configuration contains a surface-treated magnesium hydroxide and a calcium carbonate powder in which magnesium hydroxide is surface-treated with a surface treatment agent made of an organic polymer in an insulating layer containing a crosslinked silicone rubber. is doing.
  • Magnesium hydroxide is not dehydrated like aluminum hydroxide when heated during crosslinking of silicone rubber. That is, the temperature at which magnesium hydroxide is dehydrated is higher than the temperature at which aluminum hydroxide is dehydrated, and there is no fear of dehydration at the temperature of heat crosslinking of silicone rubber, unlike aluminum hydroxide. Therefore, according to the insulated wire according to the present invention, an appearance defect of the insulating layer due to dehydration of magnesium hydroxide does not occur, and a good appearance can be obtained. Thereby, the fall of various physical properties is suppressed.
  • magnesium hydroxide is surface-treated with a surface treatment agent made of an organic polymer, it is excellent in dispersibility of magnesium hydroxide in silicone rubber. Thereby, it is excellent in cold resistance.
  • the dispersibility of magnesium hydroxide is good, the load at the time of kneading silicone rubber and magnesium hydroxide becomes small, and the temperature rise at the time of kneading can be suppressed.
  • the insulated wire of the said aspect was comprised from the single layer insulation layer, you may comprise the insulated wire of this invention from two or more layers of insulation layers.
  • the insulated wire according to the present invention can be used for insulated wires used in automobiles, electronic / electrical equipment. It is particularly suitable as an insulated wire for applications that require high heat resistance and flame resistance. For example, in an insulated electric wire for automobiles, such high heat resistance is required for high voltage and large current applications such as a power cable connecting an engine and a battery of a hybrid vehicle or an electric vehicle.
  • Examples 1 to 9 A rubber composition for an insulating layer containing uncrosslinked silicone rubber, magnesium hydroxide and calcium carbonate powder was prepared by mixing each component so as to have the composition shown in Table 1. Subsequently, an uncrosslinked rubber is extruded by extruding a rubber composition for an insulating layer on the outer periphery of a conductor (cross-sectional area 0.5 mm 2 ) of an annealed copper twisted wire obtained by twisting 7 annealed copper wires using an extruder. A coating layer containing was formed. Next, the uncrosslinked rubber was crosslinked by heat-treating the coating layer under the conditions of 200 ° C. ⁇ 4 hours. Thereby, insulated wires of Examples 1 to 9 were obtained.
  • Comparative Examples 1 to 7 By mixing each component so as to have the composition shown in Table 2, a composition for an insulating layer containing uncrosslinked silicone rubber and aluminum hydroxide was prepared. Next, insulated wires of Comparative Examples 1 to 7 were obtained in the same manner as in the Examples.
  • the insulated wires of Examples 1 to 9 and Comparative Examples 1 to 7 were evaluated by performing a cold resistance test, observing the appearance of the wires, an abrasion resistance test, and a gasoline resistance test. The results are shown in Tables 1 and 2.
  • each component composition of Table 1 and Table 2, a test method, and evaluation are as follows.
  • Silicone rubber 1 manufactured by Shin-Etsu Chemical Co., Ltd., 931 (composition: dimethylsiloxane) Silicone rubber 2: manufactured by Shin-Etsu Chemical Co., Ltd., 541 (composition: dimethylsiloxane) Silicone rubber 3: manufactured by Toshiba Corporation, 2267 (composition: dimethylsiloxane) Silicone rubber 4: manufactured by Toshiba Corporation, 2277 (composition: dimethylsiloxane) PE 5% coated magnesium hydroxide Magnesium hydroxide: crystal growth method, average particle size 1.0 ⁇ m
  • Surface treatment agent Polyethylene (Mitsui Chemicals, 800P) Use amount of surface treatment agent: 5% by mass of the total amount of polyethylene and magnesium hydroxide ⁇ Calcium carbonate powder 1: Shiraishi Calcium Co., Ltd., Shiraka Hana CC, primary particle size 0.05 ⁇ m, fatty acid surface treated product ⁇ Calcium carbonate powder 2: Shiraishi Calcium Co., Softon
  • Cold resistance test method This was performed in accordance with JIS C3055. That is, the produced insulated wire was cut into a length of 38 mm to obtain a test piece. The test piece was mounted on a cold resistance tester, cooled to a predetermined temperature, hit with a hitting tool, and the state after hitting the test piece was observed. Using five test pieces, the temperature at which all five test pieces were broken was defined as the cold resistant temperature.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulated Conductors (AREA)
  • Organic Insulating Materials (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

L'invention concerne un fil électrique isolé qui comprend une couche isolante comprenant un caoutchouc au silicone réticulé, lequel fil électrique isolé ne souffre pas de diminution des diverses propriétés de matériaux du fait d'un défaut apparent de la couche isolante dû à un moussage pendant la réaction de réticulation, et est excellent en termes de résistance au gel, de résistance à l'usure et de résistance à l'essence. le fil électrique isolé comprend un conducteur et une couche isolante qui comprend du caoutchouc au silicone réticulé et avec lequel la périphérie du conducteur est recouverte, laquelle couche isolante contient une poudre de carbonate de calcium et un hydroxyde de magnésium traité en surface obtenu en traitant la surface de l'hydroxyde de magnésium avec un agent de traitement de surface comprenant un polymère organique.
PCT/JP2013/069141 2012-11-28 2013-07-12 Fil électrique isolé WO2014083883A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112013005679.8T DE112013005679B4 (de) 2012-11-28 2013-07-12 Isolierter elektrischer Draht
JP2014550047A JP6015772B2 (ja) 2012-11-28 2013-07-12 絶縁電線

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Application Number Priority Date Filing Date Title
JP2012-259250 2012-11-28
JP2012259250 2012-11-28

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WO2014083883A1 true WO2014083883A1 (fr) 2014-06-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015093255A1 (fr) * 2013-12-19 2015-06-25 株式会社オートネットワーク技術研究所 Fil électrique isolé

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6136860B2 (ja) 2013-11-05 2017-05-31 株式会社オートネットワーク技術研究所 絶縁電線

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03203960A (ja) * 1989-12-28 1991-09-05 Shin Etsu Chem Co Ltd 室温硬化性オルガノポリシロキサン組成物
JPH0912890A (ja) * 1995-07-03 1997-01-14 Shin Etsu Chem Co Ltd 付加硬化型液状シリコーンエラストマー耐油組成物
JP2011246556A (ja) * 2010-05-25 2011-12-08 Yokohama Rubber Co Ltd:The 室温硬化性シリコーンゴム組成物
JP2012014910A (ja) * 2010-06-30 2012-01-19 Auto Network Gijutsu Kenkyusho:Kk 絶縁電線

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195160A (ja) * 1985-02-26 1986-08-29 Bridgestone Corp シリコ−ンゴム組成物
FR2899905B1 (fr) * 2006-04-12 2008-07-18 Rhodia Recherches & Tech Compositions polyorganosiloxanes vulcanisables a chaud utilisables notamment pour la fabrication de fils ou cables electriques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03203960A (ja) * 1989-12-28 1991-09-05 Shin Etsu Chem Co Ltd 室温硬化性オルガノポリシロキサン組成物
US5086107A (en) * 1989-12-28 1992-02-04 Shin-Etsu Chemical Co., Ltd. Room temperature-curable organopolysiloxane composition
JPH0912890A (ja) * 1995-07-03 1997-01-14 Shin Etsu Chem Co Ltd 付加硬化型液状シリコーンエラストマー耐油組成物
JP2011246556A (ja) * 2010-05-25 2011-12-08 Yokohama Rubber Co Ltd:The 室温硬化性シリコーンゴム組成物
JP2012014910A (ja) * 2010-06-30 2012-01-19 Auto Network Gijutsu Kenkyusho:Kk 絶縁電線

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015093255A1 (fr) * 2013-12-19 2015-06-25 株式会社オートネットワーク技術研究所 Fil électrique isolé

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