CN103842431A - Heat-resistant flame-retardant resin composition, insulated electric wire, and tube - Google Patents
Heat-resistant flame-retardant resin composition, insulated electric wire, and tube Download PDFInfo
- Publication number
- CN103842431A CN103842431A CN201380003384.6A CN201380003384A CN103842431A CN 103842431 A CN103842431 A CN 103842431A CN 201380003384 A CN201380003384 A CN 201380003384A CN 103842431 A CN103842431 A CN 103842431A
- Authority
- CN
- China
- Prior art keywords
- resin composition
- tetrafluoroethylene
- alpha
- olefin copolymer
- mass parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08L27/02—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 not modified by chemical after-treatment
- C08L27/12—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 not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- 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
-
- 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
- H01B3/443—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 vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—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 vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic 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
- 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
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
Landscapes
- 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)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Abstract
Provided is a heat-resistant flame-retardant resin composition which is a resin composition made by blending an inorganic filler and/or a flame retardant to a mixture of a tetrafluoroethylene-alpha-olefin copolymer and a random polypropylene and by further irradiating the mixture with an ionizing radiation, the heat-resistant flame-retardant resin composition being characterized in that the mixing ratio between said tetrafluoroethylene-alpha-olefin copolymer and said random polypropylene is from 60:40 to 90:10 (mass ratio), the heat-resistant flame-retardant resin composition being inexpensive and having excellent insulating properties, heat resistance, flexibility, and flame retardancy as well as mechanical strength, such as cut-through properties and crimping workability, in a balanced manner. Also provided are an insulated electric wire having an insulating sheath made of said resin composition, and a tube made of said heat-resistant flame-retardant resin composition.
Description
Technical field
The present invention relates to be configured for the heat resisting flame retardant resin composition of the wire covering materials under hot environment, the pipe that there is the insulated line of the insulating coating being formed by this heat resisting flame retardant resin composition and formed by this heat resisting flame retardant resin composition.
Background technology
Wire harness in distribution, automobile engine nacelle in the utensils such as gas-cooker etc. is exposed in hot environment.Therefore,, as the material of insulating coating of electric wire that is used to form this distribution and wire harness, resin combination not only needs to have high-insulativity, also needs to have high heat resistance and high flame retardant.In addition, also need high flexible so that distribution.Especially in the case of the distribution in electrical equipment, need to have flexible.Insulating coating also needs to have high mechanical strength, for example, need to have the good so-called general character energy of cutting, and cutting the general character can be coating layer not impaired performance in the time contacting with blade.In addition,, in the time of insulated line end and crimp type terminal crimping, in order to prevent the problem such as insulation cracking, also expect to have in some cases good crimping processibility.That is to say, for the material for insulating coating, need such resin combination: this resin combination such as high heat resistance, high flexible, high flame retardant, high-insulativity and (for example) cut the general character can and crimping processibility aspect the performance such as good mechanical strength be high balance, and its cost is low.
Known example for the wire insulation coating material under hot environment is fluorine class elastomerics.Fluorine class elastomerics is balancedly to have had thermotolerance, physical strength, flexible etc. electrically insulating material concurrently.But their expensive and low cost performance has also caused people's worry conventionally.
In addition, fluorine class elastomerics is not containing crystal composition.Therefore, compared with having the resin-coated electric wire of the insulating coating being made up of resins such as polyethylene, there is the problem of physical strength aspect in the viton electric wire with the insulating coating being made up of fluorine class elastomerics, particularly, has the problem that the general character can be low of cutting.In addition, fluorine class elastomerics also has following problem: in the time that insulating coating forms by extrusion molding, extrude rear fluorine class elastomerics and can not vulcanize immediately, therefore easily under the effect of load and be out of shape.Thereby in the time the fluorine class elastomerics of extruding being rolled with spool, elastomerics is easily deformable.Therefore,, in the production of viton electric wire, need expensive rubber extruding special production line extrude continuously and vulcanize.
Another known example that is arranged in the electric wire under hot environment is the silicone rubber wire with the insulating coating being made up of silicon rubber.But silicone resin is containing crystal composition, and Intermolecular Forces very a little less than.Therefore, compared with the resin-coated electric wire of the resin-coated such as polyethylene, the physical strength of silicon rubber is low, and particularly, it cuts the general character can be low.In addition, silicon rubber also has following problem: silicon rubber conventionally can not vulcanize immediately after extruding, and therefore easily under the effect of load, is out of shape.Thereby in the time the silicon rubber of extruding being rolled with spool, silicon rubber is easily out of shape.Therefore,, in the production of electric wire that comprises the insulating coating forming with silicon rubber, need expensive rubber extruding special production line extrude continuously and vulcanize.
Patent documentation
Patent documentation 1: the Patent Application Publication No.10-316821 of Japanese unexamined
Summary of the invention
Technical problem
But, in the fluoroelastomer composition of describing at patent documentation 1, the consistency deficiency between tetrafluoroethylene-alpha-olefin copolymer and the polyolefin compositions that contains the unsaturated polar compound of olefinic.Therefore, can be improved although cut the general character, this improvement is still not enough.Thereby people expect to obtain forming the resin combination with the higher insulating coating of cutting general character energy.
As mentioned above, existing insulating coating not yet for example, reaches sufficient equilibrium with resin combination between insulativity, thermotolerance, flexible, flame retardant resistance and () are cut the physical strength of logical aspect of performance, and also meets requirement in recent years.And, about physical strength, except tensile strength and cutting general character energy, also expect to have good crimping processibility.
The object of this invention is to provide there is the insulativity, thermotolerance of abundant equilibrium, flexible, flame retardant resistance and (for example) cut the general character can and the low cost resin combination of the physical strength of crimping processibility aspect, comprise the insulated line of the insulating coating being formed by this resin combination, and the pipe being formed by this heat resisting flame retardant resin composition.
The scheme of dealing with problems
In order to realize above object, the present inventor conducts in-depth research, find following result: by containing tetrafluoroethylene-alpha-olefin copolymer, Atactic Polypropelene, mineral filler (as calcium carbonate), and/or the resin combination of fire retardant (as bromide fire retardant or antimonous oxide) is cross-linked, can make insulativity, thermotolerance, flexible, flame retardant resistance and (for example) are cut the physical strength high balance of general character energy and crimping processibility aspect, can also realize low cost, wherein in this resin combination, the ratio of components of each component is in specified range.This discovery is accomplished the present invention.
Be a kind of heat resisting flame retardant resin composition according to the invention of claim 1, comprise: the mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene; And mineral filler, with respect to the mixture of 100 mass parts, the amount of mineral filler is 10 mass parts to 100 mass parts, tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene are cross-linked by the irradiation of ionizing rays, and wherein the ratio of mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene is 60:40 to 90:10(mass ratio).
Tetrafluoroethylene-alpha-olefin copolymer is the viton by tetrafluoroethylene and alpha-olefin copolymer are obtained, and be to provide except thering is high-insulativity, also there is high mechanical strength, thermotolerance and the flexible necessary component of resin combination.
The Atactic Polypropelene mixing in resin combination of the present invention is by making ethene and propylene carry out the multipolymer that random copolymerization obtains.The Atactic Polypropelene of fusing point below 150 ℃ is preferred.By mixing Atactic Polypropelene with specified proportion, can in the situation that not using rubber extruding special production line, carry out extrusion molding, and can obtain the high general character energy of cutting.Mixing of Atactic Polypropelene further brought the effect reducing production costs.
In the present invention, the ratio of mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene is at 60:40 to 90:10(mass ratio) scope in.With respect to the total amount of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene, when the ratio of mixture of Atactic Polypropelene is during lower than 10 quality %, cannot obtain the high general character energy of cutting.When the ratio of mixture of tetrafluoroethylene-alpha-olefin copolymer lower than 60 quality %(, in the time that the ratio of mixture of Atactic Polypropelene exceedes 40 quality %) time, the physical strength of (for example) tensile property aspect reduces, especially, thermotolerance reduces, and flexible also poor.
If replace Atactic Polypropelene with the homo-polypropylene homopolymer of propylene (its for) or block polypropylene (it is the segmented copolymer of ethene and propylene), only can obtain thering is low tensile property, low heat resistant and low cut the general character can resin combination, and cannot reach object of the present invention.In addition, flexible also poor.Its reason thinks as follows: it can be by the resin crosslinks comprising in this resin combination is realized that high tensile property, high heat resistance and height are cut the general character.For the irradiation by ionizing rays makes resin crosslinks, this resin must be Atactic Polypropelene.On the contrary, the irradiation of ionizing rays can make homo-polypropylene and block polypropylene decompose.
Similarly, if replace Atactic Polypropelene with polyethylene, only can obtain having low cut the general character can resin combination.
Mixing according to the mineral filler in the resin combination of the present invention of claim 1 is the inorganic particle mixing with the object of increment in order to strengthen.The example of mineral filler comprises water-ground limestone, light calcium carbonate, magnesium silicate mineral substance, aluminium silicate mineral matter, zinc oxide, silicon-dioxide, carbon, metal hydroxides and any these materials is carried out to surface treatment and the product that obtains.These mineral fillers can be used separately or two or more filler combination is used.Mineral filler add thermotolerance and the flame retardant resistance that can improve resin combination.Adding of mineral filler also can be played the effect that reduces product price., can make high heat resistance, high flame retardant and low cost obtain high balance adding of mineral filler.
In the present invention, with respect to the tetrafluoroethylene-alpha-olefin copolymer of 100 mass parts and the mixture of Atactic Polypropelene, the combined amount of mineral filler is in the scope of 10 mass parts to 100 mass parts.
Even in the situation that not mixing mineral filler, resin combination of the present invention also has " continue heat resisting temperature " (at this temperature 10, after 000 hour, can guarantee that isolator has the temperature of 100% elongation) be 200 ℃ of above thermotolerances, this lasting heat resisting temperature (JASO) has regulation in the D609:2001 of standard and D611:2009 at Japan Automobile Standard organization (Japan Automobile Standard Organization).When the combined amount of mineral filler is 10 mass parts when above, can obtain higher thermotolerance.And, also improve flame retardant resistance by mixing mineral filler.Even in the situation that not mixing fire retardant (as bromide fire retardant or antimonous oxide), also can obtain the flame retardant resistance that meets the common required standard of insulated line.In the time that the amount of mineral filler exceedes 100 mass parts, tensile property reduces and is flexiblely also tending towards deteriorated.
Be a kind of heat resisting flame retardant resin composition according to the present invention of claim 2, comprise: the mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene; Mineral filler, with respect to the mixture of 100 mass parts, the amount of mineral filler is less than 10 mass parts; And fire retardant, with respect to the mixture of 100 mass parts, the amount of fire retardant is 3 mass parts to 20 mass parts, tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene are cross-linked by the irradiation of ionizing rays, and wherein the ratio of mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene is 60:40 to 90:10(mass ratio).
Tetrafluoroethylene-alpha-olefin copolymer, Atactic Polypropelene and the mineral filler comprising in resin combination of the present invention with according in the invention of claim 1, use those are identical.Tetrafluoroethylene-alpha-olefin copolymer is also identical with the ratio of mixture scope according to the invention of claim 1 with the ratio of mixture scope of Atactic Polypropelene.But in this invention, the combined amount of mineral filler is lower than 10 mass parts, and mixed the fire retardant of 3 mass parts to 20 mass parts.
When the combined amount of mineral filler is during lower than 10 mass parts, can keep good crimping processibility, and can prevent that following problem from occurring: insulation cracking for example occurs in the time of wire terminations and terminal compression joint.Mineral filler must not be mixed.
In addition,, by mixing fire retardants more than 3 mass parts, even very little or do not mix mineral filler in the combined amount of mineral filler, also can obtain the flame retardant resistance that meets the common required standard of insulated line.The fire retardant mixing more than 20 mass parts is not preferred, because physical strength and flexible can decline.The example of fire retardant used herein comprises: produce the fire retardant of nonflammable gas, as halide-containing; The fire retardant of thermal endothermic decomposition, as metal hydroxides; And can form the fire retardant of the combustion residue of starvation, as phosphoric acid ester.Its object lesson comprises bromide fire retardant, antimonous oxide, chlorine-based flame retardant, magnesium hydroxide, aluminium hydroxide, phosphoric acid ester, ammonium polyphosphate, polyphosphoric acid piperazine, red phosphorus, metal phosphinates and melamine cyanurate.
Obtain by the following method according to the resin combination of claim 1 or 2: mix above component by ordinary method, carry out subsequently the irradiation of ionizing rays (as electron beam or gamma ray) so that tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene are crosslinked.In the case of resin combination of the present invention being applied to the insulating coating of insulated line, from the angle of the easy degree of production process, preferably and conventionally adopt following methods: by the resin combination coating conductor such as extrusion molding, then by this resin combination of ionization radiation irradiation.
By using ionization radiation irradiation resin combination, improve tensile property, thermotolerance and cut general character energy.Ionizing rays is particularly preferably electron beam, and it is industrially being widely used, is easily controlling and by utilizing electron beam to be cross-linked with low cost.In electron beam irradiation, can use the known electron beam irradiation method that is generally used for (for example) resin crosslinks.Electron beam irradiation can be undertaken by conventional method.
Select the dosage of ionizing rays so that resin crosslinks, and obtain tensile property, the thermotolerance of expecting and cut general character energy.The in the situation that of electron beam irradiation, the dosage of preferred about 30kGy to 500kGy conventionally.
Be according to the heat resisting flame retardant resin composition of claim 1 or 2 according to the invention of claim 3, wherein tetrafluoroethylene-alpha-olefin copolymer is tetrafluoroethylene propylene copolymer.The object lesson of tetrafluoroethylene-alpha-olefin copolymer is the multipolymer of tetrafluoroethylene and propylene.
Be according to the heat resisting flame retardant resin composition of any one in claims 1 to 3 according to the invention of claim 4, wherein mineral filler is calcium carbonate.From the angle of thermotolerance, mechanical property and cost, this mineral filler is preferably calcium carbonate.The example of calcium carbonate comprises: water-ground limestone, it will be by containing CaCO
3as natural matter (as the Wingdale) mechanical disintegration of main component, then the powder classification of pulverizing is manufactured; And the precipitated calcium carbonate of producing by chemical process (light calcium carbonate).From the angle of cost, preferably water-ground limestone.
Be a kind of insulated line according to the invention of claim 5, comprise: conductor; And be arranged on conductor and by the coating layer forming according to the heat resisting flame retardant resin composition of any one in claim 1 to 4.Particularly, are a kind of electric wires that comprise insulating coating according to the invention of claim 5, the heat resisting flame retardant resin composition of this insulating coating the application of the invention and forming.Therefore, this electric wire have high heat resistance, high flame retardant, high flexible and (for example) height cut the general character can and the high mechanical strength of high-voltage connecting processibility aspect, and be suitable for (for example) electric wire and expose in environment at high temperature.It should be noted that; term " insulated line " not only refers to sense stricto insulated line (comprising the insulated line of conductor and insulating coating); and referring to so-called cable, it is by obtaining with the further coated one or more sense stricto insulated line of protection package coating.
This insulated line can make by the following method: with resin combination coating conductor of the present invention with form insulating coating, thereby then make this resin crosslinks with this insulating coating of ionization radiation irradiation.Can be coated by producing method used in existing insulated line, for example, be undertaken by method resin combination being extruded on conductor.As for conductor, for example can use up to now, as included conductor, copper cash in the insulated line of electric appliance wiring or automobile distribution or insulated cable.
Except insulated line, the present invention also provides the pitch tube of making by resin combination being configured as to pipe.Particularly, be a kind of heat-shrinkable tube according to the invention of claim 6, it is by making be configured as pipe according to the heat resisting flame retardant resin composition of any one in claim 1 to 4.The example of pitch tube of the present invention is heat-shrinkable tube, and in the time heating at the fusing point of this resin combination or higher temperature, this heat-shrinkable tube shrinks on internal diameter direction.Beneficial effect of the present invention
Resin combination of the present invention there is the insulativity, thermotolerance of high balance, flexible, flame retardant resistance and for example, at () tensile property, cut the physical strength aspect general character energy and crimping processibility, and with regard to cost performance better.Particularly, good according to the thermotolerance of the resin combination of claim 1, and good according to the crimping processibility of the resin combination of claim 2.Therefore, the insulated line of the present invention that comprises the insulating coating being made up of this resin combination is better with regard to above performance, and be suitable as the electric wire using under hot environment, for example, the distribution in distribution or automobile engine nacelle in the utensils such as gas-cooker.
Brief Description Of Drawings
[Fig. 1] Fig. 1 is the schematic sectional view that schematically shows the measuring apparatus of cutting general character energy.
Embodiment
Now will describe and implement embodiment of the present invention.But scope of the present invention is not limited to these embodiments, can under the prerequisite of not damaging the object of the invention, carry out various modifications.
Tetrafluoroethylene-alpha-olefin copolymer is the multipolymer of the alpha-olefin such as tetrafluoroethylene and polypropylene.Can with other comonomer copolymerization, as acrylate, R 1216, vinyl fluoride, vinylidene fluoride, perfluoroalkyl vinyl ether, trifluorochloroethylene, ethene, 1-butylene and (methyl) glycidyl acrylate, only otherwise damage object of the present invention.
Manufacturing the copolyreaction of this multipolymer can be undertaken by known method.But the tetrafluoroethylene propylene copolymer with various copolymerization ratios and molecular weight is commercially available, therefore can use the commercially available multipolymer of this class.
Copolymerization ratio scope and the molecular weight ranges of Paratetrafluoroethylene-alpha-olefin copolymer are not particularly limited.But copolymerization ratio is conventionally preferably at tetrafluoroethylene: in the scope of alpha-olefin=30:70 to 70:30, in the scope particularly preferably in 40:60 to 60:40.In the time that the ratio of tetrafluoroethylene is less than 30%, thermotolerance reduces.In the time that the ratio of tetrafluoroethylene exceedes 70%, flexible variation.The Mooney viscosity (ML1+10:121 ℃) of tetrafluoroethylene-alpha-olefin copolymer is preferably in 30 to 300 scopes, in 50 to 200 scopes.When mooney viscosity is lower than 30 time, cut the general character and can reduce.In the time that mooney viscosity is greater than 300, the appearance degradation after extruding.
Atactic Polypropelene is by making propylene and ethene carry out the polymkeric substance that random copolymerization obtains.Conventionally, the content of ethene is preferably below above 10 % by weight of 1 % by weight.When the content of ethene is during lower than 1 % by weight, crystallinity increases, even and when the Atactic Polypropelene obtaining with electron beam irradiation, be also not easy to occur to be cross-linked.In the time that the content of ethene exceedes 10 % by weight, the cutting the general character and can reduce of the resin combination obtaining.Or, can use by further carrying out with 1-butylene except ethene etc. the terpolymer (trimer) that copolymerization obtains.Conventionally, the melt flow rate (MFR) of Atactic Polypropelene (MFR) is preferably in 0.1 to 5 scope, and MFR measures at the temperature of the load of 2.16kg and 190 ℃.In the time that MFR is less than 0.1, the appearance degradation after extruding.In the time that MFR is greater than 5, cuts the general character and can reduce.
Except above-mentioned necessary component, not damaging under the prerequisite of object of the present invention, can contain additive according to the resin combination of claim 1, the halogen-free flame retardantss such as such as magnesium hydroxide, aluminium hydroxide, calcium hydroxide and phosphorus flame retardant; Bromide fire retardant; Chlorine-based flame retardant; Antimonous oxide; Phenol is that antioxidant, amine are that antioxidant, sulphur are the antioxidant such as antioxidant and phosphorous antioxidant; The lubricants such as stearic acid, fatty acid amide, organosilicon and polyethylene wax; And coloured pigment.Except above-mentioned necessary component, do not damaging under the prerequisite of object of the present invention, can contain additive according to the resin combination of claim 2, such as phenol is that antioxidant, amine are that antioxidant, sulphur are the antioxidant such as antioxidant and phosphorous antioxidant; The lubricants such as stearic acid, fatty acid amide, organosilicon and polyethylene wax; And coloured pigment.These additives can add separately or two or more compound combination adds.
Example
Material for embodiment and comparative example is as described below.
Tetrafluoroethylene propylene copolymer: AFLAS150C(Asahi Glass Co., Ltd. produces)
Vinylidene difluoride-hexafluoropropylene copolymer: KYNAR2750(Arkema company produces)
Atactic Polypropelene (132 ℃ of fusing points): NOBLEN S131(Sumitomo Chemical Co., Ltd. produces)
Atactic Polypropelene (145 ℃ of fusing points): NOVATEC PP EG6D(Japan Polypropylene Co., Ltd. produces)
Block polypropylene: 160 ℃ of Japan Polypropylene NOVATEC PP EC7(fusing points) (production of Japan Polypropylene Co., Ltd.)
Polyethylene: UE320(Japan Polyethylene Co., Ltd. produces)
Calcium carbonate: Softon2200(Shiraishi Calcium Kaisha Co., Ltd. produces, water-ground limestone)
Bromide fire retardant: SAYTEX BT-93(Albemarle company produces, the two tetrabromo phthalimides of ethylene)
Antimonous oxide: Antimony trioxide MSA(Yamanaka & Co., Ltd. produces, median size: 1 μ m)
Mediate the component that in Table I or II, (representing by mass parts in table) illustrates with mill, and the mixture after this kneading is made granular with tablets press.Subsequently the particle of gained is supplied to coating electric wire forcing machine, is then extruded on the conductor of TA12/0.18 by this forcing machine.Thus, to be wrapped by make it outer insulation diameter be 1.5mm φ (coating thickness: 0.375mm) to this conductor.Then use the coating conductor of the electron beam irradiation gained of electron beam illuminating device 100kGy.Thereby make the insulated line with the insulating coating being formed by cross-linked resin composition.The tensile property (tensile strength and tensile elongation) of the insulated line of the method by the following stated to manufacture described above, thermotolerance, flexible, flame retardant resistance, insulating property and cut the general character and can evaluate.Its result is shown in Table I and II.
[tensile property (tensile strength and tensile elongation)]
Measure tensile strength and tensile elongation according to JIS C3005 (1986).(standard: tensile strength >=8MPa, tensile elongation >=100%)
[thermotolerance]
Insulated line is left standstill to 4 days in the thermostatic chamber that remains 250 ℃, then from this thermostatic chamber, take out.Measure tensile strength and the tensile elongation of this insulated line according to JIS C3005 (1986).By observed value tensile strength calculated conservation rate and tensile elongation conservation rate respectively.(standard: stretching strength retentivity >=85%, tensile elongation conservation rate >=85%)
[flexible]
Measure secant modulus to evaluate the flexible of insulated line according to JIS K7127.(standard: secant modulus≤80MPa)
[flame retardant resistance]
Evaluate flame retardant resistance according to UL15811080 by vertical sample combustion test (UL VW-1 combustion test).Particularly, test is carried out as follows: make insulated line keep vertical.With 20 ° of angles, the flame of burner is applied on insulated line, then light 15 seconds, stop 15 seconds, repeat 5 times.After this,, in the time that burning (burning causing due to residual flame) continues below 60 seconds, this insulated line is evaluated as to " qualified ".In the time that burning (burning causing due to residual flame) continues to exceed 60 seconds, this insulated line is evaluated as to " defective ".
[insulating property]
By volume specific resistance measuring apparatus measurement volumes resistivity (Ω cm).(standard:>=10
15) [cutting general character energy]
Cut general character energy with the measuring apparatus measurement shown in Fig. 1.In Fig. 1, label 1 represents conductor, and label 2 represents insulating coating, and label 3 represents insulated line.To there is the blade of the blade 4(5 mil thick of 90 ° of sharp edges (edge R=0.125mm, 90 ° of edge angles)) be applied on insulated line 3, then measure the electric current flowing through between conductor 1 and sharp edge.Under original state, conductor 1 and sharp edge are due to insulating coating 2 therebetween and insulated from each other, thereby electric current cannot flow through.In the time that insulating coating 2 is cut off by blade 4, electric current flows through between conductor 1 and sharp edge.Blade 4 applies load, and measures the overall loading that insulating coating 2 bears in not cut situation.In test environment, temperature is 23 ℃, and humidity is 50%RH.Be standard (qualified level) by load definition more than 150N.
[Table I]
The ratio of each component is represented by mass parts.
[Table II]
The ratio of each composition is represented by mass parts.
Result shown in Table I and II shows, the resin combination of embodiment 1 to 4 (it meets according to the constitutive characteristic of the invention of claim 1) meet tensile property, thermotolerance, flexible, flame retardant resistance, insulating property and cut the general character can standard, and these performances are high balances.In contrast, in comparative example (its do not meet according to the constitutive characteristic of the invention of claim 1), following 1) to 4) described in, tensile property, thermotolerance, flexible, flame retardant resistance and cut the general character and can all not meet standard, do not reach object of the present invention.
1) when the total amount with respect to tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene, the blending ratio of Atactic Polypropelene is during lower than 10 quality % (comparative example 3 and 4), and cutting the general character can be low.
2) when the blending ratio of tetrafluoroethylene-alpha-olefin copolymer is during lower than 60 quality % (comparative example 1), thermotolerance is low and flexible also poor.
3) when with homo-polypropylene (its homopolymer that be propylene) or block polypropylene (it is the segmented copolymer of ethene and propylene) replacement Atactic Polypropelene (comparative example 6), tensile property, thermotolerance, flexible and cut logical poor performance.Similarly, in the time replacing Atactic Polypropelene with polyethylene (comparative example 7), cut logical poor performance.
4) when the combined amount of mineral filler (water-ground limestone) is during lower than 10 mass parts (comparative example 2), thermotolerance and flame retardant resistance are low.Cutting the general character can be also low.On the other hand, in the time that the amount of mineral filler (water-ground limestone) exceedes 100 mass parts (comparative example 5), tensile property (tensile elongation) is low and flexible poor.
Embodiment 5 to 8
Mediate the component that (representing by mass parts in table) illustrates in Table III with mill, and the mixture after this kneading is made granular with tablets press.Subsequently the particle of gained is supplied to coating electric wire forcing machine, is then extruded on the conductor of TA12/0.18 by this forcing machine.Thus, to be wrapped by make it outer insulation diameter be 1.5mm φ (coating thickness: 0.375mm) to this conductor.Then use the coating conductor of the electron beam irradiation gained of electron beam illuminating device 100kGy.Thereby make the insulated line with the insulating coating being formed by cross-linked resin composition.Tensile property (tensile strength and tensile elongation) by the insulated line to manufacture described above with method identical in embodiment 1 to 4, flexible, flame retardant resistance, insulating property and cut the general character and can evaluate.In addition, measure and continue heat resisting temperature (thermotolerance) and crimping processibility by method as described below.Its result is shown in Table III.
[continuing heat resisting temperature (thermotolerance)]
Lasting heat resisting temperature based on regulation in car gage (JASO) is evaluated thermotolerance.Particularly, at 230 ℃, 250 ℃, 270 ℃ and 290 ℃, carry out respectively weathering test.Determine until the time of tensile elongation lower than 100% time, and determine and continue heat resisting temperature with Arrhenius figure (Arrhenius plot).
[crimping processibility]
Manufacture electric wire for test, this test has been used crimp type terminal (model: SNAC3-A021T-M064) and the compression bonding apparatus (model: AP-K2N) manufactured by Japan Solderless Terminal Mfg. Co., Ltd..Wire terminations is carried out to crimping, and whether have the cracking of insulation layer with microscopic examination.While observing cracking, this electric wire is evaluated as to " defective ".While not observing cracking, this electric wire is evaluated as to " qualified ".
[Table III]
Each component represents by mass parts.
With reference to the result shown in Table III, the resin combination of embodiment 5 and 6 (it meets according to the constitutive characteristic of the invention of claim 2, and containing water-ground limestone or the water-ground limestone that contains 5 mass parts) meets tensile property, continues heat resisting temperature (thermotolerance), flexible, flame retardant resistance, insulating property and cut the general character can standard.In addition, the crimping processibility of the resin combination of embodiment 5 and 6 is also qualified.This result shows that these performances are high balances.Water-ground limestone on the other side, embodiment 7 and 8(contain 10 mass parts) do not meet the standard of crimping processibility.
List of numerals
1. conductor
2. insulating coating
3. insulated line
4. blade (thering is sharp edge)
Claims (6)
1. a heat resisting flame retardant resin composition, comprises: the mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene; And mineral filler, with respect to the described mixture of 100 mass parts, the amount of described mineral filler is 10 mass parts to 100 mass parts, described tetrafluoroethylene-alpha-olefin copolymer and described Atactic Polypropelene are cross-linked by the irradiation of ionizing rays, and the ratio of mixture of wherein said tetrafluoroethylene-alpha-olefin copolymer and described Atactic Polypropelene is 60:40 to 90:10(mass ratio).
2. a heat resisting flame retardant resin composition, comprises: the mixture of tetrafluoroethylene-alpha-olefin copolymer and Atactic Polypropelene; Mineral filler, with respect to the described mixture of 100 mass parts, the amount of described mineral filler is less than 10 mass parts; And fire retardant, with respect to the described mixture of 100 mass parts, the amount of described fire retardant is 3 mass parts to 20 mass parts, described tetrafluoroethylene-alpha-olefin copolymer and described Atactic Polypropelene are cross-linked by the irradiation of ionizing rays, and the ratio of mixture of wherein said tetrafluoroethylene-alpha-olefin copolymer and described Atactic Polypropelene is 60:40 to 90:10(mass ratio).
3. heat resisting flame retardant resin composition according to claim 1 and 2, wherein said tetrafluoroethylene-alpha-olefin copolymer is tetrafluoroethylene propylene copolymer.
4. according to the heat resisting flame retardant resin composition described in any one in claims 1 to 3, wherein said mineral filler is calcium carbonate.
5. an insulated line, comprising: conductor; And be arranged on this conductor and by the coating layer forming according to the heat resisting flame retardant resin composition described in any one in claim 1 to 4.
6. a heat-shrinkable tube, it is by making be configured as pipe according to the heat resisting flame retardant resin composition described in any one in claim 1 to 4.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-153868 | 2012-07-09 | ||
JP2012153868 | 2012-07-09 | ||
PCT/JP2013/068390 WO2014010508A1 (en) | 2012-07-09 | 2013-07-04 | Heat-resistant flame-retardant resin composition, insulated electric wire, and tube |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103842431A true CN103842431A (en) | 2014-06-04 |
CN103842431B CN103842431B (en) | 2016-05-04 |
Family
ID=49915965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380003384.6A Expired - Fee Related CN103842431B (en) | 2012-07-09 | 2013-07-04 | Heat resisting flame retardant resin composition, insulated electric conductor and pipe |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5648985B2 (en) |
CN (1) | CN103842431B (en) |
WO (1) | WO2014010508A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109867890A (en) * | 2017-12-05 | 2019-06-11 | 日立金属株式会社 | Insulated electric conductor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6361144B2 (en) * | 2014-01-20 | 2018-07-25 | 住友電気工業株式会社 | Insulated wire and manufacturing method thereof |
JP6810888B2 (en) * | 2016-11-18 | 2021-01-13 | 日立金属株式会社 | Manufacturing method of fluorine-containing elastomer coated insulated wire |
JP6575777B2 (en) * | 2018-02-14 | 2019-09-18 | 日立金属株式会社 | Electrical wire |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07179705A (en) * | 1993-12-22 | 1995-07-18 | Asahi Glass Co Ltd | Method for crosslinking fluororubber composition and its crosslinked molded product |
JP2000030543A (en) * | 1998-07-10 | 2000-01-28 | Hitachi Cable Ltd | Wire and cable covered with fluorine containing elastomer |
JP2007119515A (en) * | 2005-10-25 | 2007-05-17 | Swcc Showa Cable Systems Co Ltd | Electrical insulating composition and insulated wire |
CN102347102A (en) * | 2010-05-31 | 2012-02-08 | 日立电线株式会社 | Fluorine-containing elastomer covered electric wire, and method for making same |
CN102568662A (en) * | 2010-11-29 | 2012-07-11 | 住友电气工业株式会社 | Insulated electric wire and manufacturing method thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2852524B2 (en) * | 1989-03-18 | 1999-02-03 | 株式会社クラベ | Fluorine-containing elastomer composition |
JPH09288915A (en) * | 1996-04-24 | 1997-11-04 | Hitachi Cable Ltd | Fluorine-containing-elastomer-covered wire or cable |
JP3812064B2 (en) * | 1997-05-20 | 2006-08-23 | 株式会社クラベ | Fluorine-containing elastomer composition |
JP2005239976A (en) * | 2004-02-27 | 2005-09-08 | Fujikura Ltd | Abrasion resistant, flame retardant resin composition, and insulated electric supply cable |
JP5563771B2 (en) * | 2009-02-10 | 2014-07-30 | 日立金属株式会社 | Fluorine-containing elastomer covered wire |
-
2013
- 2013-07-04 CN CN201380003384.6A patent/CN103842431B/en not_active Expired - Fee Related
- 2013-07-04 JP JP2013545562A patent/JP5648985B2/en not_active Expired - Fee Related
- 2013-07-04 WO PCT/JP2013/068390 patent/WO2014010508A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07179705A (en) * | 1993-12-22 | 1995-07-18 | Asahi Glass Co Ltd | Method for crosslinking fluororubber composition and its crosslinked molded product |
JP2000030543A (en) * | 1998-07-10 | 2000-01-28 | Hitachi Cable Ltd | Wire and cable covered with fluorine containing elastomer |
JP2007119515A (en) * | 2005-10-25 | 2007-05-17 | Swcc Showa Cable Systems Co Ltd | Electrical insulating composition and insulated wire |
CN102347102A (en) * | 2010-05-31 | 2012-02-08 | 日立电线株式会社 | Fluorine-containing elastomer covered electric wire, and method for making same |
CN102568662A (en) * | 2010-11-29 | 2012-07-11 | 住友电气工业株式会社 | Insulated electric wire and manufacturing method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109867890A (en) * | 2017-12-05 | 2019-06-11 | 日立金属株式会社 | Insulated electric conductor |
Also Published As
Publication number | Publication date |
---|---|
JPWO2014010508A1 (en) | 2016-06-23 |
JP5648985B2 (en) | 2015-01-07 |
WO2014010508A1 (en) | 2014-01-16 |
CN103842431B (en) | 2016-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101578334B (en) | Non-halogen flame retardant resin composite and electric wire/cable using the same | |
JP5652452B2 (en) | Non-halogen flame retardant insulated wire | |
US8129619B2 (en) | Flame-retardant resin composition, and insulated wire, insulated shielded wire, insulated cable and insulation tube using the same | |
JP6376463B2 (en) | cable | |
CN104205248B (en) | Heat-resistant flame-retardant insulated wire | |
CN103890084A (en) | Heat-resistant flame-retardant resin composition, insulated electric wire, and tube | |
JP5733352B2 (en) | Insulated electric wire for vehicle and cable for vehicle using non-halogen crosslinkable resin composition | |
JP2015000913A (en) | Non-halogen flame-retardant resin composition, and wires and cables prepared using the same | |
US20140141240A1 (en) | Halogen-free resin composition, electric wire and cable | |
EP2199335B1 (en) | Flame retardant composition with improved mechanical properties | |
JP2015097210A (en) | Phosphorus-free non-halogen fire-resistant insulated wire and phosphorus-free non-halogen fire-resistant cable | |
JP2017031337A (en) | Non-halogen flame-retardant resin composition, and insulated electric wire and cable | |
JP5907015B2 (en) | Railway vehicle wires and railway vehicle cables | |
CN103842431B (en) | Heat resisting flame retardant resin composition, insulated electric conductor and pipe | |
JP2016134381A (en) | Insulated wire and cable | |
US7750242B2 (en) | Insulated wire, insulated cable, non-halogen flame retardant wire, and non-halogen flame retardant cable | |
WO2013140692A1 (en) | Non-halogen flame retardant resin composition, and electric wire and cable using same | |
JP6738547B2 (en) | Insulated wire and cable | |
CN103665724B (en) | Halogen-free flame-retardant resin composition and manufacturing method for, insulated wire using same and cable | |
JP2012038648A (en) | Vinyl insulating vinyl sheath cable | |
BRPI0806488B1 (en) | conductor cable and use of a bedding composition to produce the same | |
JP4724468B2 (en) | Flame-retardant resin composition and molded article using the same | |
JP5146718B2 (en) | Non-halogen flame retardant wire and non-halogen flame retardant cable | |
JP2004323585A (en) | Non-halogenated resin composition for electrical insulation and cabtyre type electric source cord | |
JP2002373528A (en) | Insulated electric wire and its manufacturing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20200704 |
|
CF01 | Termination of patent right due to non-payment of annual fee |