CN108976672A - Ageing-resistant cable insulation material and preparation method thereof - Google Patents
Ageing-resistant cable insulation material and preparation method thereof Download PDFInfo
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- CN108976672A CN108976672A CN201810707956.3A CN201810707956A CN108976672A CN 108976672 A CN108976672 A CN 108976672A CN 201810707956 A CN201810707956 A CN 201810707956A CN 108976672 A CN108976672 A CN 108976672A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of ageing-resistant cable insulation material and preparation method thereof, cable insulation material obtained not only has good mechanical performance, but also has good anti-ultraviolet property, ageing-resistant, is conducive to the service life for improving insulating materials.Moreover, preparation method of the invention is simply easily prepared, and raw material is easy to get, application value with higher.
Description
Technical field
The present invention relates to cable insulation materials, and in particular, to a kind of ageing-resistant cable insulation material and preparation method thereof.
Background technique
Volume resistivity is greater than on electrotechnics for high molecular material currently, the insulating layer of cable is most commonly used
109The material that the substance of Ω cm is constituted is known as insulating materials, that is, is used to make device that can electrically prevent electric current
By material.Crosslinked polyethylene has excellent dielectric properties and mechanical performance, oneself is widely used in high pressure and super-pressure
In plastic insulating power cable.With the increase of use time, the irradiation of daylight, it is tacky to often lead to insulating materials, and insulation is old
Change problem is increasingly severe, oneself becomes the major obstacle that insulated cable develops to super-pressure.
Therefore it provides a kind of mechanical strength is higher, ultra-violet radiation resisting is strong, non-aging cable insulation material and its system
Preparation Method is that the present invention needs problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of cable insulation materials and preparation method thereof, solve the insulation material of common cable
The problem of material is easy to happen aging after prolonged use, reduces the service life of cable.
To achieve the goals above, the present invention provides a kind of preparation method of ageing-resistant cable insulation material, the systems
Preparation Method the following steps are included:
(1) kaolin, aluminium salt, pink salt, alkali and water are subjected to hydro-thermal reaction so that modified kaolin is made；
(2) after titanate coupling agent pressurizeing, it is sprayed at modified kaolin surface using aeroponics, obtains twice-modified height
Ridge soil；
(3) by fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, second
Diamines, linoleic acid, organic silicon fibre retardant, plasticizer, antioxidant and twice-modified kaolin are kneaded, then extrusion molding.
The present invention also provides a kind of ageing-resistant cable insulation materials being prepared according to previously described preparation method.
Through the above technical solutions, present invention application kaolin, aluminium salt, pink salt, alkali and water carry out hydro-thermal reaction, by aluminium salt
Product after reacting with pink salt with alkali chelates on the kaolin, improves kaolinic specific surface area, has good interface
Ultraviolet light can be scattered to all directions, so that kaolin enhances the reflecting properties of ultraviolet light and visible light, be mentioned by reflecting properties
The high ability of the shielding ultraviolet rays of material；In addition modified kaolin is contacted by titanate coupling agent again, then is added to system
In the raw material of standby insulating materials, the binding performance of modified kaolin Yu other raw materials is improved, so that the performance of material is more evenly.
In conjunction with above-mentioned raw material of the invention, cable insulation material obtained not only has good mechanical performance, but also has good
Good anti-ultraviolet property, it is ageing-resistant, be conducive to the service life for improving insulating materials.Moreover, preparation side of the invention
Method is simply easily prepared, and raw material is easy to get, application value with higher.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of preparation method of ageing-resistant cable insulation material, the preparation method includes following step
It is rapid:
(1) kaolin, aluminium salt, pink salt, alkali and water are subjected to hydro-thermal reaction so that modified kaolin is made；
(2) after titanate coupling agent pressurizeing, it is sprayed at modified kaolin surface using aeroponics, obtains twice-modified height
Ridge soil；
(3) by fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, second
Diamines, linoleic acid, organic silicon fibre retardant, plasticizer, antioxidant and twice-modified kaolin are kneaded, then extrusion molding.
Through the above technical solutions, present invention application kaolin, aluminium salt, pink salt, alkali and water carry out hydro-thermal reaction, by aluminium salt
Product after reacting with pink salt with alkali chelates on the kaolin, improves kaolinic specific surface area, has good interface
Ultraviolet light can be scattered to all directions, so that kaolin enhances the reflecting properties of ultraviolet light and visible light, be mentioned by reflecting properties
The high ability of the shielding ultraviolet rays of material；In addition modified kaolin is contacted by titanate coupling agent again, then is added to system
In the raw material of standby insulating materials, the binding performance of modified kaolin Yu other raw materials is improved, so that the performance of material is more evenly.
In conjunction with above-mentioned raw material of the invention, cable insulation material obtained not only has good mechanical performance, but also has good
Good anti-ultraviolet property, it is ageing-resistant, be conducive to the service life for improving insulating materials.Moreover, preparation side of the invention
Method is simply easily prepared, and raw material is easy to get, application value with higher.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, in step (1), the kaolin, aluminium salt, pink salt, alkali and water weight ratio be 50:8-12:5-10:15-20:
100-200。
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, the mass ratio of modified kaolin and titanate coupling agent is 100:10-15.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, in terms of mass parts, relative to 100 parts of fluorubber, the dosage of ethylene propylene diene rubber is 15-20 parts, polyvinyl acetate
Dosage be 5-8 part, the dosage of ethyl phosphonic acid diethylester is 6-8 parts, and the dosage of diethyl malonate is 4-5 parts, ethylenediamine
Dosage is 6-8 parts, and linoleic dosage is 3-5 parts, and the dosage of organic silicon fibre retardant is 1-2 parts, and the dosage of plasticizer is 3-5
Part, the dosage of antioxidant is 1-2 parts, twice-modified kaolinic dosage 12-18 parts.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, the hydro-thermal reaction meets the following conditions: reaction temperature is 100-140 DEG C, reaction time 6-10h.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, the aluminium salt is selected from least one of aluminium chloride, aluminum sulfate and aluminum nitrate.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, the pink salt is selected from least one of stannic chloride, STANNOUS SULPHATE CRYSTALLINE and nitric acid tin.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, the alkali is selected from least one of sodium hydroxide, potassium hydroxide and ammonium hydroxide.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, plasticizer is selected from phthalate compound, terephthalic acid ester compound and trimellitic acid esters chemical combination
One of object is a variety of.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, one of titanate coupling agent JS-109, JS-201 and JS-311 or a variety of.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, antioxidant is selected from one of antioxidant 1010, antioxidant 1076 and antioxidant CA or a variety of.
In the above-mentioned technical solutions, the present invention can be achieved in the kaolin as plastics, the conventional commercial products filler of rubber,
The present invention is not required, and in general average grain diameter is not more than 100 microns.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, organic silicon fibre retardant is at least one of KR-480 and KR-2710.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, it is 160-210 DEG C that the condition of mixing, which includes: temperature,；Time is 0.8-1.5h.
In a kind of preferred embodiment of the present invention, in order to improve the mechanical performance and anti-aging property of insulating materials,
Preferably, extrusion temperature is 180-220 DEG C.
Fluorubber can such as select model fluororubber 23, fluororubber 26, fluororubber 246, fluorubber TP there are many selection
Deng, it is achievable of the invention, in embodiment later, fluororubber 26 is selected to be illustrated.
In the above-mentioned technical solutions, the plurality of specifications of polyvinyl acetate, such as number-average molecular weight are 55000-420000
It can be realized the present invention, in specific embodiment later, select the number of Jiangsu silver dollar gum base materials Co., Ltd production equal
Molecular weight is 80000-110000, and grade is that the polyvinyl acetate of PVAC3 is illustrated.
In the above-mentioned technical solutions, the ethylene propylene diene rubber of conventional compounded rubber is able to achieve the present invention, and the present invention does not make
It is required that.In embodiment later, it is illustrated with ethylene propylene diene rubber 4045.
The present invention also provides a kind of ageing-resistant cable insulation materials being prepared according to previously described preparation method.
Through the above technical solutions, present invention application kaolin, aluminium salt, pink salt, alkali and water carry out hydro-thermal reaction, by aluminium salt
Product after reacting with pink salt with alkali chelates on the kaolin, improves kaolinic specific surface area, has good interface
Ultraviolet light can be scattered to all directions, so that kaolin enhances the reflecting properties of ultraviolet light and visible light, be mentioned by reflecting properties
The high ability of the shielding ultraviolet rays of material；In addition modified kaolin is contacted by titanate coupling agent again, then is added to system
In the raw material of standby insulating materials, the binding performance of modified kaolin Yu other raw materials is improved, so that the performance of material is more evenly.
In conjunction with above-mentioned raw material of the invention, cable insulation material obtained not only has good mechanical performance, but also has good
Good anti-ultraviolet property, it is ageing-resistant, be conducive to the service life for improving insulating materials.Moreover, preparation side of the invention
Method is simply easily prepared, and raw material is easy to get, application value with higher.
The present invention will be described in detail by way of examples below.To cable insulation material obtained in following embodiment
It is detected, is produced according to the method tested for tensile strength in national standard GB/T1040-2006, puller system model Shimadzu Corporation
AG-20KNG；Rate of extension is 500mm/min, and test temperature is 23 DEG C.It is old according to UL62-2001 test ultraviolet light (argon arc lamp)
Tensile strength retention rate after changing 720h.Single sampling no less than 10.
Wherein, titanate coupling agent is JS-109 titanate coupling agent.
Preparation example 1
It (1) is 50:8:5-10:15:100 progress with weight ratio by kaolin, aluminium chloride, stannic chloride, sodium hydroxide and water
Hydro-thermal reaction is to be made modified kaolin；Wherein, reaction temperature is 100 DEG C, reaction time 10h；
(2) titanate coupling agent is dissolved in after pressurizeing in glycerol, is sprayed at modified kaolin surface using aeroponics, obtains
Twice-modified kaolin；The mass ratio of modified kaolin and titanate coupling agent is 100:10.
Preparation example 2
It (1) is that 50:12:10:20:200 carries out water with weight ratio by kaolin, aluminium chloride, stannic chloride, sodium hydroxide and water
Thermal response is to be made modified kaolin；Wherein, reaction temperature is 100 DEG C, reaction time 6h；
(2) titanate coupling agent is dissolved in after pressurizeing in glycerol, is sprayed at modified kaolin surface using aeroponics, obtains
Twice-modified kaolin；The mass ratio of modified kaolin and titanate coupling agent is 100:10-15.
Preparation example 3
It (1) is that 50:10:8:17:150 carries out water with weight ratio by kaolin, aluminium chloride, stannic chloride, sodium hydroxide and water
Thermal response is to be made modified kaolin；Wherein, reaction temperature is 120 DEG C, reaction time 8h；
(2) titanate coupling agent is dissolved in after pressurizeing in glycerol, is sprayed at modified kaolin surface using aeroponics, obtains
Twice-modified kaolin；The mass ratio of modified kaolin and titanate coupling agent is 100:13.
Embodiment 1
By fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, second two
Secondary in amine, linoleic acid, KR-480 organic silicon fibre retardant, diisobutyl phthalate, antioxidant 1076 and preparation example 1 changes
Property kaolin is in 160 DEG C of mixing 1.5h, then in 180 DEG C of extrusion moldings；
Wherein, in terms of mass parts, relative to 100 parts of fluorubber, the dosage of ethylene propylene diene rubber is 15 parts, polyvinyl acetate
The dosage of ester is 5 parts, and the dosage of ethyl phosphonic acid diethylester is 6 parts, and the dosage of diethyl malonate is 4 parts, the dosage of ethylenediamine
It is 6 parts, linoleic dosage is 3 parts, and the dosage of KR-480 organic silicon fibre retardant is 1 part, the use of diisobutyl phthalate
Amount is 3 parts, and the dosage of antioxidant 1076 is 1 part, twice-modified 12 parts of kaolinic dosage.Average tensile in embodiment 1 is strong
Degree is 21.3N/mm2, tensile strength retention rate is 94% to ultraviolet light and aging 720h (argon arc lamp) afterwards.
Embodiment 2
By fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, second two
Secondary in amine, linoleic acid, KR-480 organic silicon fibre retardant, diisobutyl phthalate, antioxidant 1076 and preparation example 2 changes
Property kaolin is in 210 DEG C of mixing 0.8h, then in 220 DEG C of extrusion moldings；
Wherein, in terms of mass parts, relative to 100 parts of fluorubber, the dosage of ethylene propylene diene rubber is 20 parts, polyvinyl acetate
The dosage of ester is 8 parts, and the dosage of ethyl phosphonic acid diethylester is 8 parts, and the dosage of diethyl malonate is 5 parts, the dosage of ethylenediamine
It is 8 parts, linoleic dosage is 5 parts, and the dosage of KR-480 organic silicon fibre retardant is 2 parts, the use of diisobutyl phthalate
Amount is 5 parts, and the dosage of antioxidant 1076 is 2 parts, twice-modified 18 parts of kaolinic dosage.
Average tensile strength in embodiment 1 is 21.8N/mm2, ultraviolet light and aging 720h (argon arc lamp) afterwards protect by tensile strength
Staying rate is 97%.
Embodiment 3
By fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, second two
Secondary in amine, linoleic acid, KR-480 organic silicon fibre retardant, diisobutyl phthalate, antioxidant 1076 and preparation example 3 changes
Property kaolin is in 185 DEG C of mixing 1h, then in 200 DEG C of extrusion moldings；
Wherein, in terms of mass parts, relative to 100 parts of fluorubber, the dosage of ethylene propylene diene rubber is 18 parts, polyvinyl acetate
The dosage of ester is 7 parts, and the dosage of ethyl phosphonic acid diethylester is 7 parts, and the dosage of diethyl malonate is 4.5 parts, the use of ethylenediamine
Amount is 7 parts, and linoleic dosage is 4 parts, and the dosage of KR-480 organic silicon fibre retardant is 1.5 parts, diisobutyl phthalate
Dosage be 4 parts, the dosage of antioxidant 1076 is 1.5 parts, twice-modified 15 parts of kaolinic dosage.
Average tensile strength in embodiment 1 is 21.5N/mm2, ultraviolet light and aging 720h (argon arc lamp) afterwards protect by tensile strength
Staying rate is 95%.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of preparation method of ageing-resistant cable insulation material, which is characterized in that the preparation method comprises the following steps:
(1) kaolin, aluminium salt, pink salt, alkali and water are subjected to hydro-thermal reaction so that modified kaolin is made；
(2) after titanate coupling agent pressurizeing, it is sprayed at modified kaolin surface using aeroponics, obtains twice-modified kaolinite
Soil；
(3) by fluorubber, ethylene propylene diene rubber, polyvinyl acetate, ethyl phosphonic acid diethylester, diethyl malonate, ethylenediamine,
Linoleic acid, organic silicon fibre retardant, plasticizer, antioxidant and twice-modified kaolin are kneaded, then extrusion molding.
2. preparation method according to claim 1, wherein in step (1), the kaolin, aluminium salt, pink salt, alkali and
The weight ratio of water is 50:8-12:5-10:15-20:100-200；
And/or the mass ratio of modified kaolin and titanate coupling agent is 100:10-15.
3. preparation method according to claim 2, wherein in terms of mass parts, relative to 100 parts of fluorubber, EPDM
The dosage of rubber is 15-20 part, and the dosage of polyvinyl acetate is 5-8 parts, and the dosage of ethyl phosphonic acid diethylester is 6-8 parts, third
The dosage of diethyl adipate is 4-5 parts, and the dosage of ethylenediamine is 6-8 parts, and linoleic dosage is 3-5 parts, organic silicon fibre retardant
Dosage be 1-2 part, the dosage of plasticizer is 3-5 parts, and the dosage of antioxidant is 1-2 parts, twice-modified kaolinic dosage 12-
18 parts.
4. preparation method according to claim 1, wherein the hydro-thermal reaction meets the following conditions: reaction temperature is
100-140 DEG C, reaction time 6-10h.
5. preparation method according to claim 1-5, wherein the aluminium salt is selected from aluminium chloride, aluminum sulfate and nitre
At least one of sour aluminium；
And/or the pink salt is selected from least one of stannic chloride, STANNOUS SULPHATE CRYSTALLINE and nitric acid tin；
And/or the alkali is selected from least one of sodium hydroxide, potassium hydroxide and ammonium hydroxide.
6. preparation method according to claim 1-5, wherein plasticizer is selected from phthalate chemical combination
One of object, terephthalic acid ester compound and trimellitic acid esters compound are a variety of；
And/or one of titanate coupling agent JS-109, JS-201 and JS-311 or a variety of.
7. preparation method according to claim 1-5, wherein antioxidant is selected from antioxidant 1010, antioxidant
One of 1076 and antioxidant CA are a variety of；
And/or organic silicon fibre retardant is at least one of KR-480 and KR-2710.
8. preparation method according to claim 1-5, wherein the condition of mixing includes: that temperature is 160-210
℃；Time is 0.8-1.5h.
9. preparation method according to claim 1-5, wherein extrusion temperature is 180-220 DEG C.
10. the ageing-resistant cable insulation material that -9 described in any item preparation methods are prepared according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810707956.3A CN108976672A (en) | 2018-07-02 | 2018-07-02 | Ageing-resistant cable insulation material and preparation method thereof |
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| CN201810707956.3A CN108976672A (en) | 2018-07-02 | 2018-07-02 | Ageing-resistant cable insulation material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519521A (en) * | 2016-11-18 | 2017-03-22 | 广西大学 | Waterproof flame-retardant cable material and preparation method thereof |
| CN106751937A (en) * | 2016-12-30 | 2017-05-31 | 新宇电缆集团股份有限公司 | A kind of anticorrosive anti-oxidant cable cover(ing) formula |
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2018
- 2018-07-02 CN CN201810707956.3A patent/CN108976672A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519521A (en) * | 2016-11-18 | 2017-03-22 | 广西大学 | Waterproof flame-retardant cable material and preparation method thereof |
| CN106751937A (en) * | 2016-12-30 | 2017-05-31 | 新宇电缆集团股份有限公司 | A kind of anticorrosive anti-oxidant cable cover(ing) formula |
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Application publication date: 20181211 |