CN105670050A - High-strength insulating material for cables and preparation method thereof - Google Patents
High-strength insulating material for cables and preparation method thereof Download PDFInfo
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- CN105670050A CN105670050A CN201610129103.7A CN201610129103A CN105670050A CN 105670050 A CN105670050 A CN 105670050A CN 201610129103 A CN201610129103 A CN 201610129103A CN 105670050 A CN105670050 A CN 105670050A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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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
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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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
- H01B3/28—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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- 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
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a high-strength insulating material for cables and a preparation method thereof. The high-strength insulating material for cables comprises 16-30 parts of cis-1,4-polybutadiene rubber, 10-18 parts of polyolefin elastomer, 11-20 parts of exhaustive fluorinated ethylene propylene, 4-15 parts of methylvinyl MQ silicon resin, 2-5 parts of silicone-acrylic emulsion, 2-5 parts of hexamethyl disiloxane, 3-7 parts of mineral oil, 3-7 parts of hydrogenated rosin pentaerythritol ester, 3-5 parts of magnesium oxide and 2-6 parts of acrylic acid modified alkyd resin. The preparation method comprises the following steps: uniformly mixing at high speed, extruding by a double screw extruder, cooling, and granulating to obtain the high-strength insulating material for cables. The insulating material for cables has the characteristics of high compression strength and favorable impact resistance. The preparation method has the advantages of simple preparation technique and lower cost.
Description
Technical field
The invention belongs to cable insulation material field, relate to a kind of high-strength cable insulant and preparation method thereof.
Background technology
Wires and cables industry is that the second largest industry that China is only second to automobile industry, product variety Service Efficiency and domestic market occupation rate are all more than 90%. Worldwide, China's electric wire gross output value has exceeded the U.S., becomes the first big electric wire manufacturing country in the world. Electric wire can be divided into bare conductor, insulated electric conductor, heatproof wire, shielding wire, power cable, control cable, communication cable, radio-frequency cable etc. according to the difference of its purposes.
In cable and wire, insulant is by more application, and insulated electric conductor can be divided into BLV, polyvinyl chloride insulation flexible cord, butyronitrile poly (vinyl chloride) blend insulated flexible cord, rubber insulation wire, agricultural direct buried aluminum core plastic insulated wire cord, rubber insulation cotton yarn weaving flexible cord, polyvinyl chloride insulating nylon sheathed wire, electric power and illumination polyvinyl chloride insulation flexible cord etc. according to its kind difference.
Summary of the invention
Solve the technical problem that: be now generally used for the comprcssive strength of the insulant of cable, tensile strength relatively low, and its impact resistance is also poor, it is an object of the invention to improve for the comprcssive strength of insulant of cable outer layer material, tensile strength and impact strength, and then improve the comprehensive strength of cable material.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of high-strength cable insulant, including the composition of following weight parts:
Butadiene rubber 16-30 part,
Polyolefin elastomer 10-18 part,
Exhaustive fluorinated ethylene propylene 11-20 part,
Methyl vinyl MQ silicon resin 4-15 part,
Silicone acrylic emulsion 2-5 part,
Hexamethyl disiloxane 2-5 part,
Mineral oil 3-7 part,
Hydrogenated rosin pentaerythritol ester 3-7 part,
Magnesium oxide 3-5 part,
Acrylic acid modified alkyd resin 2-6 part.
Preferably, described a kind of high-strength cable insulant, including the composition of following weight parts:
Butadiene rubber 18-26 part,
Polyolefin elastomer 12-16 part,
Exhaustive fluorinated ethylene propylene 13-18 part,
Methyl vinyl MQ silicon resin 7-12 part,
Silicone acrylic emulsion 3-4 part,
Hexamethyl disiloxane 3-4 part,
Mineral oil 4-6 part,
Hydrogenated rosin pentaerythritol ester 4-6 part,
Magnesium oxide 4-5 part,
Acrylic acid modified alkyd resin 3-5 part.
The preparation method of described a kind of high-strength cable insulant, comprises the steps:
Step 1: by weight respectively by butadiene rubber 16-30 part, polyolefin elastomer 10-18 part, exhaustive fluorinated ethylene propylene 11-20 part, methyl vinyl MQ silicon resin 4-15 part, silicone acrylic emulsion 2-5 part, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 300rpm-500rpm, and incorporation time is 10-20min;
Step 2: taking by weight in hexamethyl disiloxane 2-5 part, mineral oil 3-7 part, hydrogenated rosin pentaerythritol ester 3-7 part, magnesium oxide 3-5 part, acrylic acid modified alkyd resin 2-6 part input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 15-30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 15-25:1, double screw extruder head temperature is 160-170 DEG C, double screw extruder is extruded district's temperature and is 165-175 DEG C, and two district's temperature are 180-190 DEG C, and three district's temperature are 195-200 DEG C, four district's temperature are 205-220 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Preferably, the preparation method of described a kind of high-strength cable insulant, mixing rotating speed in step 1 is 400rpm, and incorporation time is 15min.
Preferably, the preparation method of described a kind of high-strength cable insulant, in step 3, double-screw extruder screw draw ratio is 20:1.
Preferably, the preparation method of described a kind of high-strength cable insulant, in step 3, double screw extruder head temperature is 165 DEG C.
Preferably, the preparation method of described a kind of high-strength cable insulant, in step 3, double screw extruder extrudes district's temperature is 170 DEG C, and two district's temperature are 185 DEG C, and three district's temperature are 200 DEG C, and four district's temperature are 210 DEG C.
Beneficial effect: the composition of the insulant for cable is improved, the cable insulant prepared is provided with ideal comprcssive strength, hot strength and impact strength, above-mentioned excellent pressure, stretch-proof performance can effectively ensure the properly functioning of cable, and the preparation technology of the cable insulation material of the present invention is simple, less costly, can be used for the application of various cable insulation material.
Detailed description of the invention
Embodiment 1
Step 1: by weight respectively by butadiene rubber 30 parts, polyolefin elastomer 10 parts, exhaustive fluorinated ethylene propylene 11 parts, methyl vinyl MQ silicon resin 15 parts, silicone acrylic emulsion 5 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 5 parts, 3 parts of mineral oil, hydrogenated rosin pentaerythritol ester 7 parts, magnesium oxide 5 parts, an acrylic acid modified alkyd resin 6 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Embodiment 2
Step 1: by weight respectively by butadiene rubber 16 parts, polyolefin elastomer 18 parts, exhaustive fluorinated ethylene propylene 20 parts, methyl vinyl MQ silicon resin 4 parts, silicone acrylic emulsion 2 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 300rpm, and incorporation time is 10min;
Step 2: taking by weight in hexamethyl disiloxane 2 parts, 7 parts of mineral oil, hydrogenated rosin pentaerythritol ester 3 parts, magnesium oxide 3 parts, an acrylic acid modified alkyd resin 2 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 15min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 15:1, double screw extruder head temperature is 160 DEG C, it is 165 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 190 DEG C, and three district's temperature are 195 DEG C, four district's temperature are 220 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Embodiment 3
Step 1: by weight respectively by butadiene rubber 26 parts, polyolefin elastomer 12 parts, exhaustive fluorinated ethylene propylene 13 parts, methyl vinyl MQ silicon resin 12 parts, silicone acrylic emulsion 3 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 3 parts, 6 parts of mineral oil, hydrogenated rosin pentaerythritol ester 4 parts, magnesium oxide 4 parts, an acrylic acid modified alkyd resin 3 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Embodiment 4
Step 1: by weight respectively by butadiene rubber 18 parts, polyolefin elastomer 16 parts, exhaustive fluorinated ethylene propylene 18 parts, methyl vinyl MQ silicon resin 7 parts, silicone acrylic emulsion 4 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 4 parts, 4 parts of mineral oil, hydrogenated rosin pentaerythritol ester 6 parts, magnesium oxide 5 parts, an acrylic acid modified alkyd resin 5 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Embodiment 5
Step 1: by weight respectively by butadiene rubber 22 parts, polyolefin elastomer 15 parts, exhaustive fluorinated ethylene propylene 16 parts, methyl vinyl MQ silicon resin 10 parts, silicone acrylic emulsion 3 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 4 parts, 5 parts of mineral oil, hydrogenated rosin pentaerythritol ester 5 parts, magnesium oxide 4 parts, an acrylic acid modified alkyd resin 4 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Comparative example 1
Step 1: by weight respectively by butadiene rubber 30 parts, polyolefin elastomer 10 parts, silicone acrylic emulsion 5 parts, adds to high speed mixing machine, starts high speed mixing machine, and by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 5 parts, 3 parts of mineral oil, hydrogenated rosin pentaerythritol ester 7 parts, magnesium oxide 5 parts, an acrylic acid modified alkyd resin 6 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
Comparative example 2
Step 1: by weight respectively by butadiene rubber 30 parts, polyolefin elastomer 10 parts, exhaustive fluorinated ethylene propylene 11 parts, methyl vinyl MQ silicon resin 15 parts, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 500rpm, and incorporation time is 20min;
Step 2: taking by weight in hexamethyl disiloxane 5 parts, 3 parts of mineral oil, magnesium oxide 5 parts, an acrylic acid modified alkyd resin 6 parts input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 25:1, double screw extruder head temperature is 170 DEG C, it is 175 DEG C that double screw extruder extrudes district's temperature, and two district's temperature are 180 DEG C, and three district's temperature are 200 DEG C, four district's temperature are 205 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
After preparing cable insulant, determining its hot strength, comprcssive strength and impact strength, result is as follows:
| Hot strength (MPa) | Comprcssive strength (MPa) | Impact strength (J/M) | |
| Embodiment 1 | 24.4 | 40.4 | 306 |
| Embodiment 2 | 23.7 | 39.8 | 303 |
| Embodiment 3 | 25.4 | 43.0 | 317 |
| Embodiment 4 | 26.3 | 42.6 | 332 |
| Embodiment 5 | 29.8 | 45.2 | 356 |
| Comparative example 1 | 18.9 | 35.3 | 269 |
| Comparative example 2 | 20.2 | 35.8 | 273 |
Claims (7)
1. a high-strength cable insulant, it is characterised in that described high-strength cable insulant includes the composition of following weight parts:
Butadiene rubber 16-30 part,
Polyolefin elastomer 10-18 part,
Exhaustive fluorinated ethylene propylene 11-20 part,
Methyl vinyl MQ silicon resin 4-15 part,
Silicone acrylic emulsion 2-5 part,
Hexamethyl disiloxane 2-5 part,
Mineral oil 3-7 part,
Hydrogenated rosin pentaerythritol ester 3-7 part,
Magnesium oxide 3-5 part,
Acrylic acid modified alkyd resin 2-6 part.
2. a kind of high-strength cable insulant according to claim 1, it is characterised in that described high-strength cable insulant includes the composition of following weight parts:
Butadiene rubber 18-26 part,
Polyolefin elastomer 12-16 part,
Exhaustive fluorinated ethylene propylene 13-18 part,
Methyl vinyl MQ silicon resin 7-12 part,
Silicone acrylic emulsion 3-4 part,
Hexamethyl disiloxane 3-4 part,
Mineral oil 4-6 part,
Hydrogenated rosin pentaerythritol ester 4-6 part,
Magnesium oxide 4-5 part,
Acrylic acid modified alkyd resin 3-5 part.
3. the preparation method of a kind of high-strength cable insulant according to claim 1, it is characterised in that described preparation method comprises the steps:
Step 1: by weight respectively by butadiene rubber 16-30 part, polyolefin elastomer 10-18 part, exhaustive fluorinated ethylene propylene 11-20 part, methyl vinyl MQ silicon resin 4-15 part, silicone acrylic emulsion 2-5 part, add to high speed mixing machine, start high speed mixing machine, by above-mentioned composition mixing, mixing rotating speed is 300rpm-500rpm, and incorporation time is 10-20min;
Step 2: taking by weight in hexamethyl disiloxane 2-5 part, mineral oil 3-7 part, hydrogenated rosin pentaerythritol ester 3-7 part, magnesium oxide 3-5 part, acrylic acid modified alkyd resin 2-6 part input high speed mixing machine again and carry out secondary mixing again, secondary incorporation time is 15-30min;
Step 3: the material double screw extruder of step 2 mix homogeneously is extruded, double-screw extruder screw draw ratio is 15-25:1, double screw extruder head temperature is 160-170 DEG C, double screw extruder is extruded district's temperature and is 165-175 DEG C, and two district's temperature are 180-190 DEG C, and three district's temperature are 195-200 DEG C, four district's temperature are 205-220 DEG C, cooling down after extrusion, pelletizing, for high-strength cable insulant.
4. the preparation method of a kind of high-strength cable insulant according to claim 3, it is characterised in that mixing rotating speed in described preparation method step 1 is 400rpm, and incorporation time is 15min.
5. the preparation method of a kind of high-strength cable insulant according to claim 3, it is characterised in that in described preparation method step 3, double-screw extruder screw draw ratio is 20:1.
6. the preparation method of a kind of high-strength cable insulant according to claim 3, it is characterised in that in described preparation method step 3, double screw extruder head temperature is 165 DEG C.
7. the preparation method of a kind of high-strength cable insulant according to claim 3, it is characterized in that, in described preparation method step 3, double screw extruder extrudes district's temperature is 170 DEG C, and two district's temperature are 185 DEG C, three district's temperature are 200 DEG C, and four district's temperature are 210 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610129103.7A CN105670050A (en) | 2016-03-08 | 2016-03-08 | High-strength insulating material for cables and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610129103.7A CN105670050A (en) | 2016-03-08 | 2016-03-08 | High-strength insulating material for cables and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957630A (en) * | 2016-06-27 | 2016-09-21 | 乔俊擎 | High-voltage power transmission power cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104558714A (en) * | 2015-01-09 | 2015-04-29 | 安徽中意胶带有限责任公司 | Cold-resistant flame retardant thermoplastic elastomer and preparation method thereof |
| CN104927171A (en) * | 2015-07-03 | 2015-09-23 | 苏州科茂电子材料科技有限公司 | High-molecular plastic particles for cable and preparation method for high-molecular plastic particles |
| CN105111546A (en) * | 2015-08-17 | 2015-12-02 | 繁昌县菲德通讯材料设计有限公司 | Special high-strength low-temperature-resistant cable used for oil platform |
-
2016
- 2016-03-08 CN CN201610129103.7A patent/CN105670050A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558714A (en) * | 2015-01-09 | 2015-04-29 | 安徽中意胶带有限责任公司 | Cold-resistant flame retardant thermoplastic elastomer and preparation method thereof |
| CN104927171A (en) * | 2015-07-03 | 2015-09-23 | 苏州科茂电子材料科技有限公司 | High-molecular plastic particles for cable and preparation method for high-molecular plastic particles |
| CN105111546A (en) * | 2015-08-17 | 2015-12-02 | 繁昌县菲德通讯材料设计有限公司 | Special high-strength low-temperature-resistant cable used for oil platform |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957630A (en) * | 2016-06-27 | 2016-09-21 | 乔俊擎 | High-voltage power transmission power cable |
| CN105957630B (en) * | 2016-06-27 | 2017-09-26 | 江西太平洋电缆集团有限公司 | A kind of high voltage power transmission power cable |
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Application publication date: 20160615 |