CN104086885A - Anti-corrosion cable material and preparation process thereof - Google Patents

Anti-corrosion cable material and preparation process thereof Download PDF

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Publication number
CN104086885A
CN104086885A CN201410325767.1A CN201410325767A CN104086885A CN 104086885 A CN104086885 A CN 104086885A CN 201410325767 A CN201410325767 A CN 201410325767A CN 104086885 A CN104086885 A CN 104086885A
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modified
auxiliary agent
diatomite
main material
weight ratio
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CN104086885B (en
Inventor
李笃文
刘庆义
刘松
常俊军
魏若琳
王彬彬
薛洁
边文浩
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State Grid Corp of China SGCC
Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/441Insulators 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806Protection against damage caused by corrosion
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/202Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer 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 & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention belongs to the field of novel electric materials and discloses an anti-corrosion cable material which is prepared according to a method comprising the following steps: a step (1) of preparing modified kaolin; a step (2) of preparing modified diatomite; a step (3) of preparing modified auxiliaries; a step (4) of banburying main materials; a step (5) of carrying out injection molding. The cable material prepared in the invention has good anti-corrosion performance, and can keep better mechanical performances and insulating performances under acid, base and salt as well as damp and hot conditions.

Description

Anti-corrosion cable material and preparation process thereof
Technical Field
The invention belongs to the field of new materials, and particularly relates to an anti-corrosion cable material and a preparation process thereof.
Background
The transmission of electric power is realized by using a transformer to boost the electric energy generated by a generator and then connecting the electric energy to a power transmission line through control equipment such as a breaker and the like. According to the structural form, the power transmission line is divided into an overhead power transmission line and a cable line. The overhead transmission line consists of a line tower, a lead, an insulator, a line hardware fitting, a stay wire, a tower foundation, a grounding device and the like and is erected on the ground. Power transmission is classified into ac power transmission and dc power transmission according to the nature of the transmitted current. Dc transmission was first successfully achieved in the 80's of the 19 th century. However, the voltage of the dc transmission is difficult to increase continuously under the current technical conditions, so that the transmission capacity and the efficiency are limited. At the end of the 19 th century, direct current transmission was gradually replaced by alternating current transmission. The success of alternating current transmission has already met a new era in the electrified society of the 20 th century.
Among the power transmission lines, the cable conductor is the most important power transmission line, and is made of one or more mutually insulated conductors and an outer insulating protective layer, and transmits power or information from one place to another. The phenomena of aging, corrosion and damage of the power transmission and transformation cable are easy to occur in outdoor environment, especially in humid and hot weather conditions or in regions with serious acid, alkali and salt effects, so that the power transmission and transformation cable is easy to cause power transmission line faults, brings great potential safety hazards to normal production and life of people, and also causes great loss to power departments. In order to overcome the defects, various anti-corrosion cable materials have appeared in the prior art, for example, chinese patent CN1425182A discloses an anti-corrosion cable, which solves the defects of non-corrosion resistance and the like of the cable to a certain extent, but has poor alkali resistance and salt resistance and low insulating property; chinese patent CN1929042A discloses a high-temperature-resistant, corrosion-resistant and high-voltage cable, which has good corrosion-resistant effect, but is complex in preparation, high in cost and not easy to popularize on a large scale.
Disclosure of Invention
The invention aims to solve the defects of the cable material in the prior art, changes the existing raw material composition and preparation method through a large number of tests and explorations, and provides an anti-corrosion cable material which not only has good insulating property, but also has good anti-corrosion property.
In order to achieve the above object, the technical solution of the present invention is achieved by:
an anti-corrosion cable material is prepared according to the following method:
step 1) preparation of modified kaolin: soaking kaolin in 10% (V/V) hydrochloric acid for 10min, centrifuging at 500 rpm for 3 min, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 2) preparation of modified diatomite: soaking diatomite in 10% (V/V) hydrochloric acid for 15min, centrifuging for 3 min at 500 rpm, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 3) preparing a modification auxiliary agent: uniformly mixing aluminum tripolyphosphate, graphite, borax and zinc stearate to obtain a material, putting the material into a ball milling tank containing absolute ethyl alcohol, adding alumina ceramic balls according to the weight ratio of 30: 1, carrying out ball milling for 12 hours at room temperature at the ball milling speed of 500 r/min until the particle size of powder is about 300 meshes, and evaporating the absolute ethyl alcohol to obtain a modification aid; wherein the weight ratio of the aluminum tripolyphosphate, the graphite, the borax and the zinc stearate is 1: 2;
step 4), main material banburying: uniformly mixing polypropylene resin, polycarbonate, bisphenol F type epoxy resin, polysiloxane, dicyclopentadiene, dimethylaminoethoxyethanol and triallyl isocyanurate, adding the mixture into an internal mixer, and mixing for 5 minutes at the temperature of 90 ℃ to obtain a main material; wherein the weight ratio of the polypropylene resin, the polycarbonate, the bisphenol F type epoxy resin, the polysiloxane, the dicyclopentadiene, the dimethylaminoethoxyethanol and the triallyl isocyanurate is 7: 4: 3: 2: 1;
step 5), injection molding: sequentially putting modified kaolin, modified diatomite, a modified auxiliary agent and a main material into a centrifuge, centrifugally stirring for 5 minutes at 1000 r/min, uniformly mixing, then extruding into a molten state in a double-screw extruder, extruding into an injection molding machine after the mixed materials are completely molten, and injection molding at 300 ℃ to obtain the modified kaolin/diatomite/modified auxiliary agent/main material; wherein,
the weight ratio of the modified kaolin to the modified diatomite to the modified auxiliary agent to the main material prepared in the step 4) is 1-2: 5-9: 20-30.
The beneficial effects obtained by the invention mainly comprise:
the cable material prepared by the invention has good corrosion resistance, and can keep good mechanical property and insulating property under acid-base salt and damp-heat conditions; by adding various additives, the invention improves the defects of the material and improves the performance; the preparation process is simple and suitable for large-scale production.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the present invention will be described more clearly and completely below with reference to specific embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An anti-corrosion cable material is prepared according to the following method:
step 1) preparation of modified kaolin: soaking kaolin in 10% (V/V) hydrochloric acid for 10min, centrifuging at 500 rpm for 3 min, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 2) preparation of modified diatomite: soaking diatomite in 10% (V/V) hydrochloric acid for 15min, centrifuging for 3 min at 500 rpm, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 3) preparing a modification auxiliary agent: putting aluminum tripolyphosphate, graphite, borax and zinc stearate into a ball milling tank containing absolute ethyl alcohol, adding alumina ceramic balls according to the weight ratio of 30: 1, carrying out ball milling for 12 hours at room temperature at the ball milling speed of 500 r/min until the particle size of the powder is about 300 meshes, and evaporating the absolute ethyl alcohol to obtain a modification auxiliary agent; wherein the weight ratio of the aluminum tripolyphosphate, the graphite, the borax and the zinc stearate is 1: 2;
step 4), main material banburying: uniformly mixing polypropylene resin, polycarbonate, bisphenol F type epoxy resin, polysiloxane, dicyclopentadiene, dimethylaminoethoxyethanol and triallyl isocyanurate, adding the mixture into an internal mixer, and mixing for 5 minutes at the temperature of 90 ℃ to obtain a main material; wherein the weight ratio of the polypropylene resin, the polycarbonate, the bisphenol F type epoxy resin, the polysiloxane, the dicyclopentadiene, the dimethylaminoethoxyethanol and the triallyl isocyanurate is 7: 4: 3: 2: 1;
step 5), injection molding: sequentially putting modified kaolin, modified diatomite, a modified auxiliary agent and a main material into a centrifuge, centrifugally stirring for 5 minutes at 1000 r/min, uniformly mixing, then extruding into a molten state in a double-screw extruder, extruding into an injection molding machine after the mixed materials are completely molten, and injection molding at 300 ℃ to obtain the modified kaolin/diatomite/modified auxiliary agent/main material; the weight ratio of the modified kaolin to the modified diatomite to the modified auxiliary agent to the main material is 1: 5: 20.
Taking the thickness of the cable material as an example of 3mm, the following parameters are detected: tensile Strength (N/mm)2) 12.9, elongation at break (%) 5312, hardness (A)82, volume resistivity × 10-15The (. omega. -cm) was 2.41 and the oxygen index was 32.
Example 2
An anti-corrosion cable material is prepared according to the following method:
step 1) preparation of modified kaolin: soaking kaolin in 10% (V/V) hydrochloric acid for 10min, centrifuging at 500 rpm for 3 min, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 2) preparation of modified diatomite: soaking diatomite in 10% (V/V) hydrochloric acid for 15min, centrifuging for 3 min at 500 rpm, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 3) preparing a modification auxiliary agent: putting aluminum tripolyphosphate, graphite, borax and zinc stearate into a ball milling tank containing absolute ethyl alcohol, adding alumina ceramic balls according to the weight ratio of 30: 1, wherein the ball milling time is 12 hours, the ball milling temperature is room temperature, the rotating speed of the ball mill is 500 r/min, the particle size of milled powder is about 300 meshes, and evaporating the absolute ethyl alcohol to obtain a modification auxiliary agent; wherein the weight ratio of the aluminum tripolyphosphate, the graphite, the borax and the zinc stearate is 1: 2;
step 4), main material banburying: uniformly mixing polypropylene resin, polycarbonate, bisphenol F type epoxy resin, polysiloxane, dicyclopentadiene, dimethylaminoethoxyethanol and triallyl isocyanurate, adding the mixture into an internal mixer, and mixing for 5 minutes at the temperature of 90 ℃ to obtain a main material; wherein the weight ratio of the polypropylene resin, the polycarbonate, the bisphenol F type epoxy resin, the polysiloxane, the dicyclopentadiene, the dimethylaminoethoxyethanol and the triallyl isocyanurate is 7: 4: 3: 2: 1;
step 5), injection molding: sequentially putting modified kaolin, modified diatomite, a modified auxiliary agent and a main material into a centrifuge, centrifugally stirring for 5 minutes at 1000 r/min, uniformly mixing, then extruding into a molten state in a double-screw extruder, extruding into an injection molding machine after the mixed materials are completely molten, and injection molding at 300 ℃ to obtain the modified kaolin/diatomite/modified auxiliary agent/main material; the weight ratio of the modified kaolin to the modified diatomite to the modified auxiliary agent to the main material is 2: 9: 30.
The thickness of the prepared cable material is 3mm through detection, and the tensile strength (N/mm)2) 13.7, elongation at break (%) 5297, hardness (A)83, volume resistivity X10-15The (. omega. -cm) was 2.33 and the oxygen index was 31.
Example 3
The performance test of the anti-corrosion cable material prepared by the invention comprises the following steps:
three groups are distinguished: A. normal BV cable groups, b. example 1 group, c. example 2 group.
The test materials were immersed in a 10% sodium hydroxide solution for 30 days and the main performance parameters were determined as shown in table 1:
TABLE 1
The test material was immersed in an 8% sulfuric acid solution for 30 days and the main performance parameters were determined as shown in table 2:
TABLE 2
The invention also detects the influence of the damp and hot steam and salt water on the cable material, has relatively small fluctuation range of performance parameters in all aspects, and does not influence the basic performance of the cable.
Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.

Claims (2)

1. An anti-corrosion cable material is prepared according to the following method:
step 1) preparation of modified kaolin: soaking kaolin in 10% hydrochloric acid for 10min, centrifuging at 500 rpm for 3 min, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 2) preparation of modified diatomite: soaking diatomite in 10% hydrochloric acid for 15min, centrifuging at 500 rpm for 3 min, collecting precipitate, oven drying, and grinding into powder with particle size of 300 mesh;
step 3) preparing a modification auxiliary agent: putting aluminum tripolyphosphate, graphite, borax and zinc stearate into a ball milling tank containing absolute ethyl alcohol, adding alumina ceramic balls according to the weight ratio of 30: 1, carrying out ball milling for 12 hours at room temperature at the ball milling speed of 500 r/min until the particle size of the raw material is about 300 meshes, and evaporating the absolute ethyl alcohol to obtain a modification auxiliary agent; wherein the weight ratio of the aluminum tripolyphosphate, the graphite, the borax and the zinc stearate is 1: 2;
step 4), main material banburying: uniformly mixing polypropylene resin, polycarbonate, bisphenol F type epoxy resin, polysiloxane, dicyclopentadiene, dimethylaminoethoxyethanol and triallyl isocyanurate, adding the mixture into an internal mixer, and mixing for 5 minutes at the temperature of 90 ℃ to obtain a main material; wherein the weight ratio of the polypropylene resin, the polycarbonate, the bisphenol F type epoxy resin, the polysiloxane, the dicyclopentadiene, the dimethylaminoethoxyethanol and the triallyl isocyanurate is 7: 4: 3: 2: 1;
step 5), injection molding: sequentially putting the modified kaolin, the modified diatomite, the modified auxiliary agent and the main material into a centrifuge, centrifugally stirring for 5 minutes at 1000 r/min, uniformly mixing, then extruding into a molten state in a double-screw extruder, extruding into an injection molding machine after the mixed materials are completely molten, and injection molding at 300 ℃ to obtain the modified kaolin, the modified diatomite, the modified auxiliary agent and the main material. 2. The anti-corrosion cable material according to claim 1, wherein the weight ratio of the modified kaolin, the modified diatomite, the modification auxiliary agent and the main material is 1-2: 5-9: 20-30.
2. The anti-corrosion cable material according to claim 1, wherein the weight ratio of the modified kaolin, the modified diatomite, the modification auxiliary agent and the main material is 1-2: 5-9: 20-30.
CN201410325767.1A 2014-07-04 2014-07-04 A kind of anticorrosion cable material and preparation technology thereof Expired - Fee Related CN104086885B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105419244A (en) * 2016-01-12 2016-03-23 芜湖航天特种电缆厂股份有限公司 Kaolin-modified anti-aging cable insulating material and preparing method thereof
CN105504690A (en) * 2016-01-12 2016-04-20 芜湖航天特种电缆厂股份有限公司 Kieselguhr-modified anti-aging cable insulation material and preparation method thereof
CN106700510A (en) * 2017-01-12 2017-05-24 芜湖航天特种电缆厂股份有限公司 Nylon cable protective sleeve based on bentonite modification and preparation method thereof
CN106700511A (en) * 2017-01-12 2017-05-24 芜湖航天特种电缆厂股份有限公司 Diatomite modification-based nylon cable protective sleeve and preparation method thereof
CN106832773A (en) * 2016-12-30 2017-06-13 安徽远征电缆科技有限公司 A kind of cable anti-corrosion material
CN107325392A (en) * 2017-08-01 2017-11-07 合肥安力电力工程有限公司 A kind of corrosion resistant electric power material and preparation method thereof
CN108250686A (en) * 2018-02-05 2018-07-06 合肥市大卓电力有限责任公司 A kind of heat conduction high pressure breakdown Electric insulation material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101466784A (en) * 2006-04-19 2009-06-24 埃克森美孚化学专利公司 Product by plasticized thermoplastic polyolefin composition
CN103756190A (en) * 2014-01-12 2014-04-30 莒南县美达电力实业有限公司 Radiation resistant cable and application of radiation resistant cable in power distribution system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101466784A (en) * 2006-04-19 2009-06-24 埃克森美孚化学专利公司 Product by plasticized thermoplastic polyolefin composition
CN103756190A (en) * 2014-01-12 2014-04-30 莒南县美达电力实业有限公司 Radiation resistant cable and application of radiation resistant cable in power distribution system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105419244A (en) * 2016-01-12 2016-03-23 芜湖航天特种电缆厂股份有限公司 Kaolin-modified anti-aging cable insulating material and preparing method thereof
CN105504690A (en) * 2016-01-12 2016-04-20 芜湖航天特种电缆厂股份有限公司 Kieselguhr-modified anti-aging cable insulation material and preparation method thereof
CN106832773A (en) * 2016-12-30 2017-06-13 安徽远征电缆科技有限公司 A kind of cable anti-corrosion material
CN106700510A (en) * 2017-01-12 2017-05-24 芜湖航天特种电缆厂股份有限公司 Nylon cable protective sleeve based on bentonite modification and preparation method thereof
CN106700511A (en) * 2017-01-12 2017-05-24 芜湖航天特种电缆厂股份有限公司 Diatomite modification-based nylon cable protective sleeve and preparation method thereof
CN107325392A (en) * 2017-08-01 2017-11-07 合肥安力电力工程有限公司 A kind of corrosion resistant electric power material and preparation method thereof
CN108250686A (en) * 2018-02-05 2018-07-06 合肥市大卓电力有限责任公司 A kind of heat conduction high pressure breakdown Electric insulation material and preparation method thereof

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