CN108586958B - Flame-retardant torsion-resistant sheath rubber for wind power generation flexible cable - Google Patents
Flame-retardant torsion-resistant sheath rubber for wind power generation flexible cable Download PDFInfo
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- CN108586958B CN108586958B CN201810410096.7A CN201810410096A CN108586958B CN 108586958 B CN108586958 B CN 108586958B CN 201810410096 A CN201810410096 A CN 201810410096A CN 108586958 B CN108586958 B CN 108586958B
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/286—Chlorinated polyethylene
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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
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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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
- C08L2201/02—Flame or fire retardant/resistant
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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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Abstract
The invention provides a flame-retardant torsion-resistant sheath rubber for a wind driven generator flexible cable, overcomes the defect of using a single material as a matrix by complementing the advantages of different materials, and provides a torsion-resistant and high-flame-retardant torsion-resistant sheath rubber for a wind driven generator flexible cable TICW 11-2012, which meets the technical specification of torsion-resistant flexible cables for wind power generation from rated voltage 6KV (Um is 7.2KV) to 35KV (Um is 40.5 KV). The invention adopts chlorinated polyethylene which is easy to process, low in price and good in flame retardance, chlorosulfonated polyethylene which is high in temperature resistance and good in flame retardance, and chloroprene rubber ternary composite which is good in physical and mechanical properties, torsion resistance and flame retardance as a base material, selects a proper reinforcing system, a flame retardant system and a vulcanization system, and is matched with a proper anti-aging agent combination, so that the prepared sheath rubber is easy to process and safe to operate, and has the advantages of good mechanical properties, high flame retardance and torsion resistance.
Description
Technical Field
The invention relates to a flame-retardant torsion-resistant sheath rubber for a cable, in particular to a flame-retardant torsion-resistant sheath rubber for a flexible cable of a wind driven generator.
Background
The development speed of wind power generation is remarkable as a power generation mode with the most mature technology, the most scale development condition and the most commercial development prospect in new energy, and the wind power generation is a power generation industry with the installed capacity of the third share after thermal power and hydropower in China at present and is also one of important fields encouraging development of the nation in new energy in China. Cables for wind power generation, which are matching products of wind power generation equipment, are becoming new cable varieties with great market potential. Because the wind power generation complete machine technology in China is introduced from abroad, most of cables used by the wind power generation complete machine technology are imported, and besides the structural design of the cables, the wind power generation complete machine technology also has the reason of insulation and sheath materials, some companies in China are also put into research and development, but the number of truly mature products is small, the development of the companies in China is achieved in the aspect of insulation materials, and the products are not seen on the aspect of sheaths, particularly flame-retardant and torsion-resistant high-performance sheath materials.
The chlorinated polyethylene is a high polymer material prepared by chlorination substitution reaction of high-density polyethylene, is a saturated high polymer material, has the characteristics of excellent weather resistance, flame retardance and the like, has good compatibility with other high polymer materials, is a base material widely used in cable sheaths due to 35-40% of chlorine (CM type), has low price, easy processing, safe operation and long storage time, has common mechanical properties if being independently applied to wind cable sheaths, has insufficient temperature resistance level, low flame retardance and torsion resistance, and is difficult to meet the requirements of torsion resistance, elongation at break change at aging temperature and higher flame retardance.
Chlorosulfonated polyethylene is a chlorine-containing special elastomer material with a high saturated chemical structure prepared by chlorination and chlorosulfonation of polyethylene main raw materials, belongs to a special rubber variety with high performance and quality, and has excellent ozone resistance, atmospheric aging resistance, chemical corrosion resistance and the like, better physical and mechanical properties, low temperature resistance, oil resistance, aging resistance and heat resistance, but higher price, short storage time and general flame retardance and torsion resistance.
Chloroprene rubber (Neoprene), also known as chloroprene rubber, is a synthetic rubber produced by alpha-polymerization of chloroprene (i.e. 2-chloro-1, 3-butadiene) as a main raw material, is widely applied to weather-resistant products, has good physical and mechanical properties, oil resistance, sunlight resistance, ozone resistance and other properties, good torsion resistance and high flame retardance, but is high in price, difficult to process, general in temperature resistance and incapable of being stored for a long time.
Disclosure of Invention
The invention aims to provide a flame-retardant torsion-resistant sheath rubber for a wind driven generator flexible cable, overcomes the defect of using a single material as a matrix by complementing the advantages of different materials, and provides a high-flame-retardant torsion-resistant and high-flame-retardant torsion-resistant sheath rubber for a wind driven generator flexible cable, which meets the technical specification of torsion-resistant flexible cables for wind power generation, namely TICW 11-2012 (rated voltage of 6KV (Um) ═ 7.2KV) to 35KV (Um) ("40.5 KV)". The invention adopts chlorinated polyethylene which is easy to process, low in price and good in flame retardance, chlorosulfonated polyethylene which is high in temperature resistance and good in flame retardance, and chloroprene rubber ternary composite which is good in physical and mechanical properties, torsion resistance and flame retardance as a base material, selects a proper reinforcing system, a flame retardant system and a vulcanization system, and is matched with a proper anti-aging agent combination, so that the prepared sheath rubber is easy to process and safe to operate, and has the advantages of good mechanical properties, high flame retardance and torsion resistance.
The technical scheme of the invention is as follows: the flame-retardant torsion-resistant sheath rubber for the wind power generation flexible cable comprises the following components in parts by mass:
40-60 parts of chlorinated polyethylene rubber; 20-40 parts of chloroprene rubber; 20-40 parts of chlorosulfonated polyethylene rubber; 2-5 parts of a lubricating aid; 3-5 parts of an anti-aging agent; 1-3 parts of titanate coupling agent; 3-5 parts of a stabilizer; 20-30 parts of a reinforcing agent; 30-50 parts of a filling agent; 15-30 parts of a flame retardant; 6-11 parts of a plasticizer; 10-15 parts of a vulcanizing agent; 1-1.5 parts of an accelerator.
Further, the rubber content of the flame-retardant torsion-resistant sheath rubber is 41-46%; the gum content is (weight of chlorosulfonated polyethylene rubber + weight of chloroprene rubber + weight of chlorinated polyethylene rubber)/total weight 100%.
Further, the performance parameters of the chlorinated polyethylene rubber are as follows: 35% of chlorine content and 70% of Mooney viscosity at 125 ℃;
the performance parameters of the chloroprene rubber are as follows: the regulator is mercaptan regulating type (G type), the crystallization speed is medium, and the Mooney viscosity at 100 ℃ is 50-60;
the chlorosulfonated polyethylene rubber has the following performance parameters: chlorine content of 33-37% and Mooney viscosity at 100 ℃ of 50-60.
Further, the lubricating auxiliary agent comprises 1-2 parts of stearic acid and 1-3 parts of mixed wax. The mixed wax is a mixture of paraffin and microcrystalline paraffin.
Furthermore, the anti-aging agent is 2-3 parts of 4,4' -dioctyl diphenylamine (ODA) and 1-2 parts of N-N-phenyl-p-phenylenediamine (TPPD).
Preferably, the titanate coupling agent is isopropyl tri (dioctyl pyrophosphato acyloxy) titanate coupling agent.
Preferably, the stabilizer is a calcium zinc bear stabilizer MC91717 manufactured by balhoh plastics additives (suzhou) limited.
Further, the reinforcing agent is 10-15 parts of semi-reinforcing carbon black and 10-15 parts of high-dispersion white carbon black.
Furthermore, the filler is 5-10 parts of superfine talcum powder and 25-40 parts of calcined argil.
Preferably, the flame retardant is 3-7 parts of flame retardant PK2001 (high-activity molecular load magnesium silicate platelet) produced by Guangdong Dong chemical technology Co., Ltd, 5-8 parts of antimony trioxide and 7-15 parts of decabromodiphenylethane;
further, the plasticizer is 3-6 parts of 52-degree chlorinated paraffin oil and 3-5 parts of dioctyl sebacate.
Further, the vulcanizing agent is 6-8 parts of high-activity magnesium oxide which is simultaneously used as an acid absorbent and a stabilizer, 3-5 parts of nano zinc oxide, 0.4-0.8 part of ethylene thiourea (2-thiol imidazoline) (NA-22) and 0.6-1.2 parts of dicumyl peroxide (DCP).
Further, the accelerator is 0.6-0.8 parts of 2, 2' -Dithiodibenzothiazole (DM) which is used as an anti-scorching agent simultaneously, and 0.4-0.7 parts of dipentamethylenethiuram tetrasulfide (DPTT) which is used as a co-vulcanizing agent simultaneously.
After the technical scheme is adopted, the invention has the following beneficial effects:
the sheath rubber produced by singly using the chlorinated polyethylene as the matrix has low cost, easy processing and better flame retardance, but has general mechanical properties, low temperature resistance and poor torsion resistance, and cannot meet the requirements of torsion resistance, elongation at break change at aging temperature and high flame retardance; the sheath rubber using chlorosulfonated polyethylene as a matrix has excellent temperature resistance, but has higher price, and the flame retardance and the torsion resistance can not meet the requirements and can not be stored for a long time; the sheath rubber using the chloroprene rubber as the matrix has excellent mechanical properties, torsion resistance and flame retardance, but has high price, difficult processing, easy scorching, short storage time and temperature resistance which can not meet the requirements. The sheath rubber adopting the ternary composition of chlorinated polyethylene, chlorosulfonated polyethylene and chloroprene rubber as a matrix completely meets the standard requirements, and simultaneously, the requirements of physical and mechanical properties, torsion resistance and flame retardance are further ensured by matching with a proper flame-retardant system and a proper co-vulcanization system. Therefore, the invention manufactures a brand-new sheath rubber for the wind driven generator flexible cable with easy processing, safe operation, good mechanical property, good flame retardance and torsion resistance by compounding three kinds of rubber with advantages as a substrate, and the sheath completely meets the performance requirements of the technical specification of the torsion-resistant flexible cable TICW 11-2012 (TICW) for wind power generation from rated voltage 6KV (Um is 7.2KV) to 35KV (Um is 40.5 KV).
Detailed Description
The present invention is described in detail with reference to the following examples, which are not intended to limit the scope of the present invention, and all methods and similar modifications using the present invention shall fall within the scope of the present invention.
Example 1:
watch 1
The rubber compounded in this example was vulcanized in a press vulcanizer at 165 ℃ for 15 minutes under a pressure of 12MPa to give a test piece having a thickness of 1mm, and the following results were obtained:
mooney viscosity (ML (1+4)100 ℃: 51.0Mv
Tensile strength: 13.3MPa
Elongation at break: 463% by weight
Pant-type tear strength: 8.2N/mm
Limiting oxygen index: 41 percent
Performance after aging at 120 ℃ for 240h
Tensile strength retention: 88 percent
Retention of elongation at break: not less than 83 percent
The properties of the finished jacket produced according to this example are shown in table two:
watch two
| Tensile strength, MPa | 13.5 |
| Elongation at break,% | 455 |
| Trouser tear Strength, N/mm | 7.9 |
| Bundled combustion (C type) | By passing |
| Normal temperature torsion | Over 12000 cycles |
| Low temperature torsion (-25 ℃ C.) | > 2500 cycles |
Example 2:
watch III
The rubber compounded in this example was vulcanized in a press vulcanizer at 165 ℃ for 15 minutes under a pressure of 12MPa to give a test piece having a thickness of 1mm, and the following results were obtained:
mooney viscosity (ML (1+4)100 ℃: 48.0Mv
Tensile strength: 14.8MPa
Elongation at break: 525 percent
Pant-type tear strength: 9.2N/mm
Limiting oxygen index: 43 percent
Performance after aging at 120 ℃ for 240h
Tensile strength retention: 93 percent
Retention of elongation at break: not less than 88 percent
The properties of the finished jacket produced according to this example are shown in table four:
watch four
| Tensile strength, MPa | 15.1 |
| Elongation at break,% | 511 |
| Trouser tear Strength, N/mm | 8.9 |
| Bundled combustion (C type) | By passing |
| Normal temperature torsion | > 15000 cycles |
| Low temperature torsion (-25 ℃ C.) | > 4000 cycles |
Example 3:
watch five
The rubber compounded in this example was vulcanized in a press vulcanizer at 165 ℃ for 15 minutes under a pressure of 12MPa to give a test piece having a thickness of 1mm, and the following results were obtained:
mooney viscosity (ML (1+4)100 ℃: 57.0Mv
Tensile strength: 12.5MPa
Elongation at break: 443% of
Pant-type tear strength: 7.5N/mm
Limiting oxygen index: 39 percent of
Performance after aging at 120 ℃ for 240h
Tensile strength retention: 81 percent of
Retention of elongation at break: not less than 78%
The properties of the finished jacket produced according to this example are shown in table six:
watch six
The above-mentioned embodiments are further detailed descriptions of the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made by those skilled in the art without departing from the spirit and principles of the present invention should be considered as the protection scope of the present invention.
Claims (4)
1. The flame-retardant torsion-resistant sheath rubber for the wind power generation flexible cable is characterized in that: the adhesive comprises the following components in parts by mass:
40-60 parts of chlorinated polyethylene rubber; 20-40 parts of chloroprene rubber; 20-40 parts of chlorosulfonated polyethylene rubber; 2-5 parts of a lubricating additive; 3-5 parts of an anti-aging agent; 1-3 parts of titanate coupling agent; 3-5 parts of a stabilizer; 20-30 parts of a reinforcing agent; 30-50 parts of a filling agent; 15-30 parts of a flame retardant; 6-11 parts of a plasticizer; 10-15 parts of a vulcanizing agent; 1-1.5 parts of an accelerator;
the rubber content of the flame-retardant torsion-resistant sheath rubber is 41-46%; the gum content is (weight of chlorosulfonated polyethylene rubber + weight of chloroprene rubber + weight of chlorinated polyethylene rubber)/total weight 100%;
the reinforcing agent is 10-15 parts of semi-reinforcing carbon black and 10-15 parts of high-dispersion white carbon black;
the filler is 5-10 parts of superfine talcum powder and 25-40 parts of calcined argil;
the plasticizer is 3-6 parts of 52-degree chlorinated paraffin oil and 3-5 parts of dioctyl sebacate;
6-8 parts of high-activity magnesium oxide, 3-5 parts of nano zinc oxide, 0.4-0.8 part of 2-thiol imidazoline and 0.6-1.2 parts of dicumyl peroxide which are simultaneously used as an acid-absorbing agent and a stabilizer;
the flame retardant is PK 20013-7 parts, antimony trioxide 5-8 parts and decabromodiphenylethane 7-15 parts;
the accelerator is 0.6-0.8 part of 2, 2' -dithiodibenzothiazyl which is simultaneously used as a scorch retarder and 0.4-0.7 part of dipentaerythritol tetrasulfide which is simultaneously used as a co-vulcanizing agent.
2. The flame-retardant torsion-resistant sheath rubber for the wind power generation flexible cable according to claim 1, wherein: the performance parameters of the chlorinated polyethylene rubber are as follows: 35% of chlorine content and 70% of Mooney viscosity at 125 ℃;
the performance parameters of the chloroprene rubber are as follows: the regulator is mercaptan regulating type, has medium crystallization speed and Mooney viscosity at 100 ℃ of 50-60;
the chlorosulfonated polyethylene rubber has the following performance parameters: chlorine content of 33-37% and Mooney viscosity at 100 ℃ of 50-60.
3. The flame-retardant torsion-resistant sheath rubber for the wind power generation flexible cable according to claim 1, wherein: the lubricating auxiliary agent comprises 1-2 parts of stearic acid and 1-3 parts of mixed wax.
4. The flame-retardant torsion-resistant sheath rubber for the wind power generation flexible cable according to claim 1, wherein: the anti-aging agent comprises 2-3 parts of 4,4' -dioctyl diphenylamine and 1-2 parts of N-N-phenyl-p-phenylenediamine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810410096.7A CN108586958B (en) | 2018-05-02 | 2018-05-02 | Flame-retardant torsion-resistant sheath rubber for wind power generation flexible cable |
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| CN201810410096.7A CN108586958B (en) | 2018-05-02 | 2018-05-02 | Flame-retardant torsion-resistant sheath rubber for wind power generation flexible cable |
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| CN108586958B true CN108586958B (en) | 2021-05-07 |
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| CN111675860A (en) * | 2020-07-23 | 2020-09-18 | 远东电缆有限公司 | Low-temperature-resistant oil-resistant torsion-resistant high-flame-retardant sheath material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473007A (en) * | 1993-06-22 | 1995-12-05 | Goldstar Cable Co., Ltd. | Crosslinked flame-retardant resin composition and the insulated wire having layer using the above composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101609734A (en) * | 2009-07-24 | 2009-12-23 | 上海德力西集团有限公司 | The jacket structure of flame retardant cable |
| CN104194176A (en) * | 2014-08-19 | 2014-12-10 | 安徽蒙特尔电缆集团有限公司 | High-strength anti-oxidation flame-retardant cable material |
| CN104821196B (en) * | 2015-05-12 | 2017-01-04 | 江苏永鼎股份有限公司 | Retinue optoelectronic composite cable in a kind of super flexible chamber |
| CN105070370A (en) * | 2015-07-22 | 2015-11-18 | 安徽华宇电缆集团有限公司 | Compression-resistant and corrosion-resistant cable for ships |
| CN105384980A (en) * | 2015-12-30 | 2016-03-09 | 梁小利 | High strength high flame-retardant cable sheath material and preparing method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473007A (en) * | 1993-06-22 | 1995-12-05 | Goldstar Cable Co., Ltd. | Crosslinked flame-retardant resin composition and the insulated wire having layer using the above composition |
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