CN114479220A - High-thermal-conductivity insulating material based on nano modification for electric vehicle quick charging cable - Google Patents

High-thermal-conductivity insulating material based on nano modification for electric vehicle quick charging cable Download PDF

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CN114479220A
CN114479220A CN202210212824.XA CN202210212824A CN114479220A CN 114479220 A CN114479220 A CN 114479220A CN 202210212824 A CN202210212824 A CN 202210212824A CN 114479220 A CN114479220 A CN 114479220A
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insulating layer
parts
nano
modified
charging cable
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黄兴溢
季娟
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Zhenjiang Huayin Instrument Electrical Co ltd
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Zhenjiang Huayin Instrument Electrical Co ltd
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • 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
    • H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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    • 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
    • H01B3/442—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 aromatic vinyl compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0225—Three or more layers
    • 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
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • 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
    • 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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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2309/06—Copolymers with styrene
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    • C08J2325/00—Characterised by the use 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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
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    • C08J2325/06—Polystyrene
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Abstract

The invention discloses a high-thermal-conductivity insulating material of an electric automobile quick-charging cable based on nano modification, which comprises a first insulating layer, wherein a second insulating layer and a third insulating layer are sequentially arranged inside the first insulating layer, a plurality of identical equidistant annular array connecting and fixing holes are respectively formed in the second insulating layer and the third insulating layer, a plurality of fixing heads are arranged inside a cavity of the third insulating layer, the bottom ends of the fixing heads are connected with a connecting column, and limiting rings are respectively arranged at the connecting positions of the fixing heads and the connecting column.

Description

High-thermal-conductivity insulating material of electric automobile quick-charging cable based on nano modification
Technical Field
The invention relates to a high-thermal-conductivity insulating material of a nano-modified electric automobile quick-charging cable.
Background
The electric wire and the cable are indispensable important materials in industrial and agricultural production and modern life, China is the biggest electric wire and cable production country all over the world, and the electric wire and cable industry plays a very important role in national economy of China, but at present, the cable material on the market has the phenomena of no high temperature resistance, no aging resistance, yellowing and brittleness of the material after an aging test.
Because the electric wire aging causes more and more fires, how to reduce the incidence of the fire and the death rate when the fire occurs, low smoke, no halogen, flame retardance and environmental protection also become the development direction of the electric wire and cable industry. The demand of the halogen-free low-smoke nano modified halogen-free wear-resistant cable material is increasing, most of the current halogen-free low-smoke nano modified halogen-free wear-resistant cable materials are produced by adding a large amount of acetylene black or acetylene black into a polyolefin substrate to achieve a flame retardant effect, however, the addition of a large amount of inorganic materials influences the physical and mechanical properties and processing of the cable material. The cable material with flame retardance, low smoke, environmental protection, good weather resistance and low cost becomes the development direction of the cable material.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-thermal-conductivity insulating material of a nano-modified electric vehicle quick-charging cable.
A high-thermal-conductivity insulating material of an electric automobile quick-charging cable based on nanometer modification comprises a first insulating layer, wherein a second insulating layer and a third insulating layer are sequentially arranged inside the first insulating layer, a plurality of identical equidistant annular array connecting and fixing holes are formed in the second insulating layer and the third insulating layer, a plurality of fixing heads are arranged inside a cavity of the third insulating layer, the bottom ends of the fixing heads are connected with a connecting column, the connecting column sequentially penetrates through the third insulating layer and the connecting and fixing holes in the second insulating layer to be connected with the inner wall of the first insulating layer, limiting rings are arranged at the connecting positions of the fixing heads and the connecting column, and a flame retardant is coated on the inner wall of the third insulating layer;
the first insulating layer, the second insulating layer and the third insulating layer are prepared from the following raw materials: 30-35 parts of hydrogenated styrene, 25-30 parts of butadiene styrene copolymer, 2-4 parts of butyl rubber, 2-4 parts of toughening agent, 5-6 parts of acrylate modified butadiene resin, 4-6 parts of nano calcium carbonate powder, 4-5 parts of nano aluminum nitride, 4-5 parts of nano boron nitride, 2-3 parts of antioxidant, 1-3 parts of ditetradecyl alcohol ester, 3-5 parts of calcium stearate and 3-5 parts of modified filler.
As a further improvement, the modified filler consists of the following components in proportion: 45-55 parts of modified kaolin, 25-35 parts of diatomite, 2-5 parts of alum, 3-10 parts of nano calcium oxide, 3-10 parts of cuprous sulfide and 2-5 parts of titanium dioxide.
As a further improvement, the toughening agent is ethylene propylene glycol, ethylene propylene diene, butadiene rubber, natural rubber, isobutylene rubber, nitrile rubber, styrene-butadiene thermoplastic elastomer, acrylonitrile-butadiene-styrene copolymer or chlorinated polyethylene.
As a further improvement, the antioxidant is zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate or alkyl phenothiazine.
As a further improvement, the diameter of the fixing head is larger than that of the connecting and fixing hole.
As a further improvement, the diameter of the limiting ring is larger than that of the connecting and fixing hole, the limiting ring, the connecting column and the fixing head are made of rubber hydrocarbon materials, the rubber hydrocarbon materials are high in elasticity, high in stretching strength, good in tear resistance and electrical insulation, good in abrasion resistance and drought resistance, convenient to process, easy to adhere other materials, and convenient for better fixing the first insulating layer, the second insulating layer and the third insulating layer, so that the problems of cracking and abrasion caused by falling or repeated folding are solved.
As a further improvement, the flame retardant is a halogen-free flame retardant, so that spontaneous combustion caused by overhigh temperature in the cable made of the high-heat-conductivity insulating material is prevented.
Has the advantages that:
the fixing structure is simple in structure and convenient to process, the first insulating layer, the second insulating layer and the third insulating layer are fixed through the connecting column and the fixing head, and are prevented from falling off through the limiting ring, so that the fixing effect among cables is enhanced, and the cables are prevented from being damaged due to repeated bending; the connecting column and the fixing head are made of rubber hydrocarbon materials, the rubber hydrocarbon materials are high in elasticity and stretching strength, good in tear resistance and electrical insulation, good in abrasion resistance and drought resistance, convenient to process, easy to adhere other materials, and convenient to fix the first insulating layer, the second insulating layer and the third insulating layer, so that the connecting column and the fixing head are prevented from falling off or cracking and wearing due to repeated folding.
According to the invention, the halogen-free flame retardant is coated on the high-heat-conductivity insulating material, so that spontaneous combustion caused by overhigh temperature in the cable made of the high-heat-conductivity insulating material is prevented, a secondary protection effect is achieved, and the service life of the cable is prolonged.
The high-thermal-conductivity insulating material prepared by the formula has the advantages of high wear resistance, thermal conductivity, heat resistance and insulativity, simple processing, wide application range, simplicity and easy obtainment and low manufacturing cost.
Drawings
Fig. 1 is a schematic diagram of the general structure of a high thermal conductivity insulating material based on a nano-modified electric vehicle quick charging cable.
1. The first insulating layer 2, the second insulating layer 3, the third insulating layer 4, the connecting column 5, the limiting ring 6 and the fixing hole are connected.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1, a high thermal conductivity insulating material for a nano-modified electric vehicle quick charging cable comprises a first insulating layer 1, a second insulating layer 2, a third insulating layer 3, a connecting column 4, a limiting ring 5 and a connecting fixing hole 6.
A high-thermal-conductivity insulating material of an electric automobile quick-charging cable based on nanometer modification comprises a first insulating layer 1, wherein a second insulating layer 2 and a third insulating layer 3 are sequentially arranged inside the first insulating layer 1, a plurality of identical equidistant annular array connecting and fixing holes 6 are formed in the second insulating layer 2 and the third insulating layer 3, a plurality of fixing heads are arranged inside a cavity of the third insulating layer 3, the bottom ends of the fixing heads are connected with a connecting column 4, the connecting column 4 sequentially penetrates through the third insulating layer 3 and the connecting and fixing holes 6 in the second insulating layer 2 to be connected with the inner wall of the first insulating layer 1, limiting rings 5 are arranged at the joints of the fixing heads and the connecting column 4, and a flame retardant is coated on the inner wall of the third insulating layer 3; the first insulating layer 1, the second insulating layer 2 and the third insulating layer 3 are prepared from the following raw materials: 30-35 parts of hydrogenated styrene, 25-30 parts of butadiene styrene copolymer, 2-4 parts of butyl rubber, 2-4 parts of toughening agent, 5-6 parts of acrylate modified butadiene resin, 4-6 parts of nano calcium carbonate powder, 4-5 parts of nano aluminum nitride, 4-5 parts of nano boron nitride, 2-3 parts of antioxidant, 1-3 parts of ditetradecanol ester, 3-5 parts of calcium stearate and 3-5 parts of modified filler.
The modified filler consists of the following components in proportion: 45-55 parts of modified kaolin, 25-35 parts of diatomite, 2-5 parts of alum, 3-10 parts of nano calcium oxide, 3-10 parts of cuprous sulfide and 2-5 parts of titanium dioxide.
In the high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable, the toughening agent can be ethylene propylene diene, butadiene rubber, natural rubber, isobutylene rubber, nitrile rubber, a styrene-butadiene thermoplastic elastomer, an acrylonitrile-butadiene-styrene copolymer or chlorinated polyethylene, but in order that the high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable has more excellent high-temperature resistance, wear resistance and mechanical properties, preferably, the toughening agent is selected from chlorinated polyethylene and a styrene-butadiene thermoplastic elastomer, and the mass ratio is 0.5: 1.
In the high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable, the antioxidant can be zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate or alkyl phenothiazine, but in order that the high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable has more excellent high-temperature resistance, wear resistance and mechanical properties, the antioxidant is preferably selected from zinc dialkyl dithiophosphate and zinc dialkyl dithiocarbamate, and the mass ratio is 1: 1.
The diameter of fixed head is greater than the diameter of connecting fixed orifices 6, and the diameter of spacing ring 5 is greater than the diameter of connecting fixed orifices 6, the material of spacing ring 5, spliced pole 4 and fixed head is the rubber hydrocarbon material, and the elasticity of rubber hydrocarbon material is big, and the tensile strength is high, and tear resistance and electrical insulation are better, and wearability and drought resistance are good, and processing is convenient, easily other material bonding, the better fixed first insulation layer 1 of being convenient for, second insulating layer 2 and third insulating layer 3 prevent it to drop or because of folding the problem that ftractures, wearing and tearing appear many times.
In the high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable, the flame retardant is a halogen-free flame retardant, and the halogen-free flame retardant can be tricresyl phosphate, triphenyl phosphate, triisopropylphenyl phosphate, tributyl phosphate, trioctyl phosphate, and cresyl diphenyl phosphate.
Example 1:
at 23 ℃, mixing and smelting hydrogenated styrene, butadiene styrene copolymer, butyl rubber, toughening agent, acrylate modified butadiene resin, nano calcium carbonate powder, nano aluminum nitride, nano boron nitride, antioxidant, ditetradecyl carbonate, calcium stearate and modified filler at the temperature of 200 ℃ according to the weight ratio of 30:30:2: 5:6:5:4.5:2:1:3:3 for 30 minutes, and then extruding to prepare the high-thermal-conductivity insulating material based on the nano modified electric automobile quick-charging cable, wherein the modified filler is prepared from modified kaolin, diatomite, alum, nano calcium oxide, cuprous sulfide titanium dioxide and modified filler according to the ratio of 45:25:4:6:5: 5.
Example 2:
at 23 ℃, mixing and smelting hydrogenated styrene, butadiene styrene copolymer, butyl rubber, toughening agent, acrylate modified butadiene resin, nano calcium carbonate powder, nano aluminum nitride, nano boron nitride, antioxidant, ditetradecanol ester, calcium stearate and modified filler at the temperature of 200 ℃ according to the weight ratio of 30:25:4:4:5:6:5:4:2:1:3:5 for 30 minutes, and then extruding to prepare the high-thermal-conductivity insulating material based on the nano modified electric automobile quick-charging cable, wherein the modified filler is prepared from modified kaolin, diatomite, alum, nano calcium oxide, cuprous sulfide and titanium dioxide at the ratio of 45:25:4:6:5: 5.
Example 3:
at 23 ℃, mixing and smelting hydrogenated styrene, butadiene styrene copolymer, butyl rubber, toughening agent, acrylate modified butadiene resin, nano calcium carbonate powder, nano aluminum nitride, nano boron nitride, antioxidant, ditetradecyl carbonate, calcium stearate and modified filler at the temperature of 200 ℃ according to the weight ratio of 35:25:2: 5:6:5:4.5:2:1:3:3 for 30 minutes, and then extruding to prepare the high-thermal-conductivity insulating material based on the nano modified electric automobile quick-charging cable, wherein the modified filler is prepared from modified kaolin, diatomite, alum, nano calcium oxide, cuprous sulfide titanium dioxide and modified filler at the ratio of 45:25:4:6:5: 5.
Comparative example 1:
the high thermal conductivity insulating material based on the nano modified electric vehicle quick charging cable prepared by the method of the embodiment 1 is different from that nano calcium carbonate powder is not used.
Comparative example 2:
the high thermal conductivity insulating material based on the nano-modified electric vehicle quick charging cable prepared by the method of the embodiment 2 is different from that the bistetradecanol ester is not used.
Comparative example 3:
the high thermal conductivity insulating material based on the nano modified electric vehicle quick-charging cable prepared by the method of the embodiment 3 is different from that the antioxidant is not used.
The wear resistance, the heat resistance, the flame retardance and the mechanical property of the high-heat-conductivity insulating material based on the nano-modified electric automobile quick-charging cable in the embodiment are far higher than those of the high-heat-conductivity insulating material based on the nano-modified electric automobile quick-charging cable in the comparative embodiment, so that the high-heat-conductivity insulating material based on the nano-modified electric automobile quick-charging cable provided by the invention has good wear resistance, heat resistance, flame retardance and mechanical property.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A high-thermal-conductivity insulating material of an electric automobile quick-charging cable based on nanometer modification is characterized by comprising a first insulating layer, wherein a second insulating layer and a third insulating layer are sequentially arranged in the first insulating layer, a plurality of identical equidistant annular array connecting and fixing holes are formed in the second insulating layer and the third insulating layer, a plurality of fixing heads are arranged in a cavity of the third insulating layer, the bottom ends of the fixing heads are connected with a connecting column, the connecting column sequentially penetrates through the third insulating layer and the connecting and fixing holes in the second insulating layer to be connected with the inner wall of the first insulating layer, limiting rings are arranged at the connecting positions of the fixing heads and the connecting column, and a flame retardant is coated on the inner wall of the third insulating layer;
the first insulating layer, the second insulating layer and the third insulating layer are prepared from the following raw materials: 30-35 parts of hydrogenated styrene, 25-30 parts of butadiene styrene copolymer, 2-4 parts of butyl rubber, 2-4 parts of toughening agent, 5-6 parts of acrylate modified butadiene resin, 4-6 parts of nano calcium carbonate powder, 4-5 parts of nano aluminum nitride, 4-5 parts of nano boron nitride, 2-3 parts of antioxidant, 1-3 parts of ditetradecyl alcohol ester, 3-5 parts of calcium stearate and 3-5 parts of modified filler.
2. The high-thermal-conductivity insulating material based on the nano-modified electric automobile quick-charging cable is characterized in that the modified filler consists of the following components in proportion: 45-55 parts of modified kaolin, 25-35 parts of diatomite, 2-5 parts of alum, 3-10 parts of nano calcium oxide, 3-10 parts of cuprous sulfide and 2-5 parts of titanium dioxide.
3. The nano-modified high thermal conductivity insulating material for the electric vehicle quick-charging cable according to claim 1, wherein the toughening agent is ethylene propylene diene monomer, butadiene rubber, natural rubber, isobutylene rubber, nitrile rubber, styrene-butadiene thermoplastic elastomer, acrylonitrile-butadiene-styrene copolymer or chlorinated polyethylene.
4. The high thermal conductivity insulating material based on the nano-modified electric vehicle quick-charging cable as claimed in claim 1, wherein the antioxidant is zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate or alkyl phenothiazine.
5. The high thermal conductivity insulating material based on the nano-modified electric vehicle quick charging cable is characterized in that the diameter of the fixing head is larger than that of the connecting fixing hole.
6. The nano-modified high-thermal-conductivity insulating material for the electric vehicle quick-charging cable according to claim 1, wherein the diameter of the limiting ring is larger than that of the connecting and fixing hole, and the limiting ring, the connecting column and the fixing head are all made of rubber hydrocarbon materials.
7. The high thermal conductivity insulating material based on the nano-modified electric vehicle quick charging cable according to claim 1, characterized in that the flame retardant is a halogen-free flame retardant.
CN202210212824.XA 2022-03-01 2022-03-01 High-thermal-conductivity insulating material based on nano modification for electric vehicle quick charging cable Pending CN114479220A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103554807A (en) * 2013-10-12 2014-02-05 绿宝电缆（集团）有限公司 Nano-modified halogen-free wear resistant cable material
CN107778810A (en) * 2016-08-26 2018-03-09 芜湖君禾电线电缆有限公司 High temperature-resistant cable insulating materials based on nanometer iron oxide-modified and preparation method thereof
CN208637194U (en) * 2018-07-04 2019-03-22 金杯塔牌电缆有限公司 Double-insulated cable
CN211858209U (en) * 2018-07-11 2020-11-03 成都飞航智库科技有限公司 Power cable for wind power generation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103554807A (en) * 2013-10-12 2014-02-05 绿宝电缆（集团）有限公司 Nano-modified halogen-free wear resistant cable material
CN107778810A (en) * 2016-08-26 2018-03-09 芜湖君禾电线电缆有限公司 High temperature-resistant cable insulating materials based on nanometer iron oxide-modified and preparation method thereof
CN208637194U (en) * 2018-07-04 2019-03-22 金杯塔牌电缆有限公司 Double-insulated cable
CN211858209U (en) * 2018-07-11 2020-11-03 成都飞航智库科技有限公司 Power cable for wind power generation

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Application publication date: 20220513