CN105482272A - Insulating rubber for power cables - Google Patents
Insulating rubber for power cables Download PDFInfo
- Publication number
- CN105482272A CN105482272A CN201511016215.3A CN201511016215A CN105482272A CN 105482272 A CN105482272 A CN 105482272A CN 201511016215 A CN201511016215 A CN 201511016215A CN 105482272 A CN105482272 A CN 105482272A
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- rubber
- power cable
- cable insulation
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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
- C08L23/02—Compositions 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM 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
- H01B3/28—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
- H01B3/441—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
-
- 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
-
- 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
-
- 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 & 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an insulating rubber for power cables, which comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer rubber, 20-30 parts of low-density polyethylene, 80-105 parts of filler, 1-2 parts of stearic acid, 0.5-2.5 parts of magnesium oxide, 3-6 parts of paraffin, 5-10 parts of dioctyl phthalate, 2-3 parts of anti-aging agent RD, 6-10 parts of flame retardant, 0.2-0.6 part of crosslinking agent, 3.5-5 parts of silicon dioxide, 1-2 parts of microcrystalline wax, 1-3 parts of silane coupling agent, 0.5-1.5 parts of antioxidant and 3-10 parts of reinforcing agent. By adopting the ethylene propylene diene monomer rubber and low-density polyethylene as basic rubber and adding aluminum hydroxide, red phosphorus and zinc borate as a composite flame retardant, the prepared insulating rubber has the advantages of excellent electrical insulation properties, flame retardancy, wear resistance, aging resistance, acid/alkali resistance, oil resistance and tear resistance.
Description
Technical field
The invention belongs to cable material field, specifically a kind of power cable insulation rubber.
Background technology
Ethylene Propylene Terpolymer rubber has become widely used a kind of insulating material in electric wire.Ethylene Propylene Terpolymer is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon.Diolefine has special structure, and only have the ability copolymerization of one of two keys, undersaturated double bond is mainly as interlinkage place.Another is undersaturated can not become main polymer chain, only can become avris chain.The principal polymeric chain of Ethylene Propylene Terpolymer is completely saturated.This characteristic makes Ethylene Propylene Terpolymer can resist heat, light, oxygen, especially ozone.Ethylene Propylene Terpolymer is non-polar in essence, and have resistance to polar solvent and chemicals, water-intake rate is low, has good insulation characterisitic.In Ethylene Propylene Terpolymer production process, by changing the quantity of three monomers, ethylene, propylene ratio, the method for molecular weight and distribution and sulfuration can adjust its characteristic.Terpolymer EP rubber has low density high fillibility, ageing resistance, erosion resistance, electrical property and elasticity.
Linear low density polyethylene (LLDPE), that ethene and a small amount of high alpha-olefin (as butene-1, hexene-1, octene-1, tetramethyl-amylene-1 etc.) are under catalyst action, through a kind of multipolymer of high pressure or low-pressure polymerization, density is between 0.915-0.940 gram/cc.Low Density Polyethylene is nontoxic, tasteless, odorless, and be creamy white particle.There is the advantages such as intensity is high, good toughness, rigidity are strong, heat-resisting, cold-resistant compared with LDPE, also there is the performances such as good resisting environmental stress and cracking, tear-resistant intensity, and can acid-and base-resisting, organic solvent etc.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of power cable insulation rubber.
Object of the present invention can be achieved through the following technical solutions:
A kind of power cable insulation rubber, it is characterized in that, by weight, following feed composition is comprised: terpolymer EP rubber 100 parts, Low Density Polyethylene 20-30 part, weighting agent 80-105 part, stearic acid 1-2 part, magnesium oxide 0.5-2.5 part, paraffin 3-6 part, o-phthalic acid dibutyl ester 5-10 part, anti-aging agent RD 2-3 part, fire retardant 6-10 part, crosslink agent DCP 0.2-0.6 part, silicon-dioxide 3.5-5 part, microcrystalline wax 1-2 part, silane coupling agent 1-3 part, oxidation inhibitor 0.5-1.5 part, strengthening agent 3-10 part.
Described terpolymer EP rubber performance perameter is: the mooney viscosity tested at 100 DEG C is 48, ethylene content is 51%, ENB content is 4.3%.
Described weighting agent is the mixture of calcium carbonate and calcination potter's clay, wherein calcium carbonate 30-40 part, calcinated argil 50-65 part.
Described fire retardant is the mixture of aluminium hydroxide, red phosphorus and zinc borate, and the weight ratio of described aluminium hydroxide, red phosphorus and zinc borate is 2:1:1.
Described strengthening agent is precipitated silica.
Beneficial effect of the present invention: power cable insulation rubber of the present invention adopts glue based on terpolymer EP rubber and Low Density Polyethylene, possesses the performance of terpolymer EP rubber and Low Density Polyethylene simultaneously, add aluminium hydroxide, red phosphorus and zinc borate as composite flame-retardant agent, preparation insulation rubber not only there is excellent electrical insulation capability, also there is flame retardant properties, wear resistance, ageing-resistant, acid and alkali-resistance, oil-proofness, tearing toughness.
Embodiment
The all raw materials of the present invention are all obtained by purchase.The oxidation inhibitor that the present invention selects is four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
Embodiment 1
A kind of power cable insulation rubber, by weight, following feed composition is comprised: terpolymer EP rubber 100 parts, Low Density Polyethylene 20 parts, 30 parts, calcium carbonate, calcinated argil 50 parts, stearic acid 1 part, 0.5 part, magnesium oxide, 3 parts, paraffin, o-phthalic acid dibutyl ester 5 parts, anti-aging agent RD 2 parts, 3 parts, aluminium hydroxide, 1.5 parts, red phosphorus, zinc borate 1.5 parts, crosslink agent DCP 0.2 part, silicon-dioxide 3.5 parts, microcrystalline wax 1 part, silane coupling agent 1 part, 0.5 part, oxidation inhibitor, precipitated silica 3 parts.
Terpolymer EP rubber performance perameter is: the mooney viscosity tested at 100 DEG C is 48, ethylene content is 51%, ENB content is 4.3%.
By above-mentioned raw materials by proportioning through banburying, open the refining lamp course of processing, extrude sulfuration and obtain power cable insulation rubber.
Embodiment 1 obtains insulation rubber test performance: aging front tensile strength is 9N/mm
2, aging front elongation at break 404%.
Embodiment 2
A kind of power cable insulation rubber, by weight, following feed composition is comprised: terpolymer EP rubber 100 parts, Low Density Polyethylene 30 parts, 40 parts, calcium carbonate, calcinated argil 65 parts, stearic acid 2 parts, 2.5 parts, magnesium oxide, 6 parts, paraffin, o-phthalic acid dibutyl ester 10 parts, anti-aging agent RD 3 parts, 5 parts, aluminium hydroxide, 2.5 parts, red phosphorus, zinc borate 2.5 parts, crosslink agent DCP 0.6 part, silicon-dioxide 5 parts, microcrystalline wax 2 parts, silane coupling agent 3 parts, 1.5 parts, oxidation inhibitor, precipitated silica 10 parts.
Terpolymer EP rubber performance perameter is: the mooney viscosity tested at 100 DEG C is 48, ethylene content is 51%, ENB content is 4.3%.
By above-mentioned raw materials by proportioning through banburying, open the refining lamp course of processing, extrude sulfuration and obtain power cable insulation rubber.
Embodiment 2 obtains insulation rubber test performance: aging front tensile strength is 8.7N/mm
2, aging front elongation at break 400%.
Embodiment 3
A kind of power cable insulation rubber, by weight, following feed composition is comprised: terpolymer EP rubber 100 parts, Low Density Polyethylene 25 parts, 35 parts, calcium carbonate, calcinated argil 60 parts, stearic acid 1.5 parts, 1.5 parts, magnesium oxide, 4.5 parts, paraffin, o-phthalic acid dibutyl ester 7.5 parts, anti-aging agent RD 2.5 parts, 4 parts, aluminium hydroxide, 2 parts, red phosphorus, zinc borate 2 parts, crosslink agent DCP 0.4 part, silicon-dioxide 4 parts, microcrystalline wax 1.5 parts, silane coupling agent 2 parts, 1 part, oxidation inhibitor, precipitated silica 7 parts.
Terpolymer EP rubber performance perameter is: the mooney viscosity tested at 100 DEG C is 48, ethylene content is 51%, ENB content is 4.3%.
By above-mentioned raw materials by proportioning through banburying, open the refining lamp course of processing, extrude sulfuration and obtain power cable insulation rubber.
Embodiment 3 obtains insulation rubber test performance: aging front tensile strength is 9.2N/mm
2, aging front elongation at break 406%.
Above content is only to structure example of the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (5)
1. a power cable insulation rubber, it is characterized in that, by weight, following feed composition is comprised: terpolymer EP rubber 100 parts, Low Density Polyethylene 20-30 part, weighting agent 80-105 part, stearic acid 1-2 part, magnesium oxide 0.5-2.5 part, paraffin 3-6 part, o-phthalic acid dibutyl ester 5-10 part, anti-aging agent RD 2-3 part, fire retardant 6-10 part, crosslink agent DCP 0.2-0.6 part, silicon-dioxide 3.5-5 part, microcrystalline wax 1-2 part, silane coupling agent 1-3 part, oxidation inhibitor 0.5-1.5 part, strengthening agent 3-10 part.
2. power cable insulation rubber according to claim 1, is characterized in that, described terpolymer EP rubber performance perameter is: the mooney viscosity tested at 100 DEG C is 48, ethylene content is 51%, ENB content is 4.3%.
3. power cable insulation rubber according to claim 1, is characterized in that, described weighting agent is the mixture of calcium carbonate and calcination potter's clay, wherein calcium carbonate 30-40 part, calcinated argil 50-65 part.
4. power cable insulation rubber according to claim 1, is characterized in that, described fire retardant is the mixture of aluminium hydroxide, red phosphorus and zinc borate, and the weight ratio of described aluminium hydroxide, red phosphorus and zinc borate is 2:1:1.
5. power cable insulation rubber according to claim 1, is characterized in that, described strengthening agent is precipitated silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016215.3A CN105482272A (en) | 2015-12-30 | 2015-12-30 | Insulating rubber for power cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016215.3A CN105482272A (en) | 2015-12-30 | 2015-12-30 | Insulating rubber for power cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105482272A true CN105482272A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511016215.3A Pending CN105482272A (en) | 2015-12-30 | 2015-12-30 | Insulating rubber for power cables |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106589623A (en) * | 2016-12-16 | 2017-04-26 | 江苏昌达环保科技有限公司 | Environment-friendly flame-retardant rubber floor and preparation method thereof |
| CN107177080A (en) * | 2017-07-12 | 2017-09-19 | 合肥信亚达智能科技有限公司 | A kind of production technology of anti-aging corrosion proof cable material |
| CN107195359A (en) * | 2017-05-03 | 2017-09-22 | 安徽凌宇电缆科技有限公司 | A kind of new girdle banding coal mining machine flexible cable with metallic shielding rubber sleeve |
| CN107383643A (en) * | 2017-08-31 | 2017-11-24 | 远东电缆有限公司 | Oil-immersed pump electric power cable oil resistant ethylene propylene rubber insulation material and preparation method thereof |
| CN107722469A (en) * | 2017-09-07 | 2018-02-23 | 新宇电缆集团股份有限公司 | Extraordinary adiabatic cable insulation of a kind of new energy and preparation method thereof |
| CN110358199A (en) * | 2019-04-22 | 2019-10-22 | 四川德华电气有限责任公司 | A kind of cable jacket fire-retardant combination and preparation method thereof |
| CN112029201A (en) * | 2020-09-08 | 2020-12-04 | 瑞安复合材料(深圳)有限公司 | Chemical corrosion resistant insulating material and preparation method thereof |
| CN113174119A (en) * | 2021-04-16 | 2021-07-27 | 和峻（广州）胶管有限公司 | Halogen-free flame-retardant insulating rubber hose material composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093736A (en) * | 2006-06-21 | 2007-12-26 | 江苏中煤电缆集团有限公司 | Rubber insulation material and insulating sheath material for mine cable |
| CN101597395A (en) * | 2009-06-24 | 2009-12-09 | 上海至正道化高分子材料有限公司 | A kind of fireproofing cable material without halide and preparation method thereof |
| CN101613506A (en) * | 2009-07-25 | 2009-12-30 | 四川明星电缆股份有限公司 | High temperature resistance non halogen flame retardant cable sheath material and preparation method thereof |
-
2015
- 2015-12-30 CN CN201511016215.3A patent/CN105482272A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093736A (en) * | 2006-06-21 | 2007-12-26 | 江苏中煤电缆集团有限公司 | Rubber insulation material and insulating sheath material for mine cable |
| CN101597395A (en) * | 2009-06-24 | 2009-12-09 | 上海至正道化高分子材料有限公司 | A kind of fireproofing cable material without halide and preparation method thereof |
| CN101613506A (en) * | 2009-07-25 | 2009-12-30 | 四川明星电缆股份有限公司 | High temperature resistance non halogen flame retardant cable sheath material and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106589623A (en) * | 2016-12-16 | 2017-04-26 | 江苏昌达环保科技有限公司 | Environment-friendly flame-retardant rubber floor and preparation method thereof |
| CN107195359A (en) * | 2017-05-03 | 2017-09-22 | 安徽凌宇电缆科技有限公司 | A kind of new girdle banding coal mining machine flexible cable with metallic shielding rubber sleeve |
| CN107177080A (en) * | 2017-07-12 | 2017-09-19 | 合肥信亚达智能科技有限公司 | A kind of production technology of anti-aging corrosion proof cable material |
| CN107383643A (en) * | 2017-08-31 | 2017-11-24 | 远东电缆有限公司 | Oil-immersed pump electric power cable oil resistant ethylene propylene rubber insulation material and preparation method thereof |
| CN107722469A (en) * | 2017-09-07 | 2018-02-23 | 新宇电缆集团股份有限公司 | Extraordinary adiabatic cable insulation of a kind of new energy and preparation method thereof |
| CN110358199A (en) * | 2019-04-22 | 2019-10-22 | 四川德华电气有限责任公司 | A kind of cable jacket fire-retardant combination and preparation method thereof |
| CN112029201A (en) * | 2020-09-08 | 2020-12-04 | 瑞安复合材料(深圳)有限公司 | Chemical corrosion resistant insulating material and preparation method thereof |
| CN112029201B (en) * | 2020-09-08 | 2022-12-13 | 瑞安复合材料(深圳)有限公司 | Chemical corrosion resistant insulating material and preparation method thereof |
| CN113174119A (en) * | 2021-04-16 | 2021-07-27 | 和峻（广州）胶管有限公司 | Halogen-free flame-retardant insulating rubber hose material composition |
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Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |