CN104893109A - Electro-insulating rubber and manufacturing method thereof, and cable manufactured from electro-insulating rubber - Google Patents
Electro-insulating rubber and manufacturing method thereof, and cable manufactured from electro-insulating rubber Download PDFInfo
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- 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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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
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Abstract
The invention discloses an electro-insulating rubber and a manufacturing method thereof, and a cable manufactured from the electro-insulating rubber. Per vehicle of the electro-insulating rubber is prepared from the following raw materials by weight: 65.00 parts of ethylene propylene rubber, 29.50 parts of another ethylene propylene rubber, 4.75 parts of high density polyethylene, 2.15 parts of dicumyl peroxide, 5.75 parts of low density polyethylene powder 510, 0.55 part of triallyl cyanurate, 0.95 part of antioxidant MB, 1.425 parts of antioxidant RD, 6.75 parts of nanometer zinc oxide, 119.00 parts of imported calcined clay, 0.95 part of stearic acid, 7.75 parts of paraffin oil Type 2360 and 2.45 parts of carbon black N-330. The electrical performance--insulation resistance value of the electro-insulating rubber provided by the invention reaches 1500 M omega.km; and partial discharge test is carried out in static and bending states after thermal cycle, and under the condition of a voltage value of 1.73 U0, partial discharge test is less than or equal to the 5 PC.
Description
Technical field
The present invention relates to the cable that a kind of electro-insulating rubber and manufacture method and this electro-insulating rubber thereof manufacture.
Background technology
At present, along with the fast development in modern logistics weight handling equipment field, the industries such as harbour, mine, electric power, coal, building materials, grain all adopt powerful equipment to improve production capacity to all trades and professions, thus the requirement of transmission yarn supporting is with it improved constantly, voltage range also improves thereupon, and cable under high-voltage in situation, will reciprocate with equipment high speed in 6kV ~ 15kV situation, collect with reel, become the main power supply cable of weight handling equipment.Cable in frequent moving process to insulation electric property and mechanical property requirements higher, current this type of Cable insulation electric property life-span of domestic dynamic use is very short.
Summary of the invention
The defect that the present invention seeks to exist for prior art provides a kind of electro-insulating rubber and manufacture method thereof, and this electro-insulating rubber mechanical property is superior, and insulating property are safe and reliable, and corrosion-resistant, ageing-resistant.
The present invention for achieving the above object, adopt following technical scheme: a kind of electro-insulating rubber, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 8,340 65.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K578 29.00 ~ 30.00 parts, high density polyethylene(HDPE) DFDA1258 4.50 ~ 5.00 parts, dicumyl peroxide DCP 2.00 ~ 2.20 parts, Low Density Polyethylene powder FN510 5.50 ~ 6.00 parts, triallyl cyanurate TAC 0.50 ~ 0.60 part, antioxidant MB 0.90 ~ 1.00 part, anti-aging agent RD 1.45 ~ 1.50 parts, nano zine oxide 6.50 ~ 7.00 parts, import calcinated argil 118.00 ~ 120.20 parts, stearic acid 0.90 ~ 1.00 part, 2360 type paraffin oils 7.50 ~ 8.00 parts, carbon black N-330 2.40 ~ 2.50 parts.
Further, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 8,340 65.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K578 29.00 parts, high density polyethylene(HDPE) DFDA1258 4.50 parts, dicumyl peroxide DCP 2.00 parts, Low Density Polyethylene powder FN510 5.50 parts, triallyl cyanurate TAC 0.50 part, antioxidant MB 0.90 part, anti-aging agent RD 1.45 parts, nano zine oxide 6.50 parts, import calcinated argil 118.00 parts, stearic acid 0.90 part, 2360 type paraffin oils 7.50 parts, carbon black N-330 2.40 parts.
Further, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 8,340 65.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K578 29.50 parts, high density polyethylene(HDPE) DFDA1258 4.75 parts, dicumyl peroxide DCP 2.15 parts, Low Density Polyethylene powder FN510 5.75 parts, triallyl cyanurate TAC 0.55 part, antioxidant MB 0.95 part, anti-aging agent RD 1.425 parts, nano zine oxide 6.75 parts, import calcinated argil 119.00 parts, stearic acid 0.95 part, 2360 type paraffin oils 7.75 parts, carbon black N-330 2.45 parts.
Further, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 8,340 65.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K578 30.00 parts, high density polyethylene(HDPE) DFDA1258 5.00 parts, dicumyl peroxide DCP 2.20 parts, Low Density Polyethylene powder FN510 6.00 parts, triallyl cyanurate TAC 0.60 part, antioxidant MB 1.00 parts, anti-aging agent RD 1.50 parts, nano zine oxide 7.00 parts, import calcinated argil 120.20 parts, stearic acid 1.00 parts, 2360 type paraffin oils 8.00 parts, carbon black N-330 2.50 parts.
A manufacture method for electro-insulating rubber, comprises the steps:
(1), per car weighs according to the raw material of following parts by weight: 8,340 65.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K578 29.00 ~ 30.00 parts, high density polyethylene(HDPE) DFDA1258 4.50 ~ 5.00 parts, dicumyl peroxide DCP 2.00 ~ 2.20 parts, Low Density Polyethylene powder FN 510 5.50 ~ 6.00 parts, triallyl cyanurate TAC 0.50 ~ 0.60 part, antioxidant MB 0.90 ~ 1.00 part, anti-aging agent RD 1.45 ~ 1.50 parts, nano zine oxide 6.50 ~ 7.00 parts, import calcinated argil 118.00 ~ 120.20 parts, stearic acid 0.90 ~ 1.00 part, 2360 type paraffin oils 7.50 ~ 8.00 parts, carbon black N-3302.40 ~ 2.50 part,
(2), calendering process
1. according to above-mentioned parts by weight ratio, first high density polyethylene(HDPE) DFDA1258 is carried out hot mastication, then enter Banbury mixer with ethylene-propylene rubber(EPR) 8340 and carry out mixing together with ethylene-propylene rubber(EPR) K578; Wherein, high density polyethylene(HDPE) DFDA1258 should without visual particulate state material;
2. then add Synergist S-421 95: import calcinated argil, nano zine oxide, anti-aging agent RD, antioxidant MB, Low Density Polyethylene powder FN510, stearic acid, carbon black N-330, continue mixing 9-10 minute;
3. bound edge filter glue is turned on limit simultaneously, and filter screen adopts each one of 20,40 and 80 order nets, and every 5 car material change 80 mesh filter screens once; Namely all change if net is worn, then carry out filter glue;
4. rubber unvulcanizate not slice, carries out three rollers rolling pages and opens 1mm strip, carry out two sections and add sulphur; Add triallyl cyanurate TAC, dicumyl peroxide DCP, 2360 type paraffin oils, bag tilting machine turns over Bao Sanci, opens bar slice after raw material is mixed, and slice thickness is: 0.50 ~ 0.70mm, width is: 180 ~ 250mm;
5. after slice, rubber unvulcanizate carries out cooling process and storage environment encapsulation process.
The cable that electro-insulating rubber manufactures, this cable is adopted and is prepared with the following method, and step is as follows:
A, manufacture power wire core, ground connection core, control conductor unit and optical cable unit respectively;
The manufacturing step of power wire core: power wire core unit adopts three-layer co-extruded forcing machine to produce, respectively: wrap up semi-conductive rubber outside conductor and form semiconduction conductor shield, wrap up described electro-insulating rubber outside semiconduction conductor shield and form insulation layer, wrap up semi-conductive rubber outside insulation layer and form insulation screen, form complete power wire core unit;
The manufacturing step of ground connection core: wrap up semi-conductive rubber outside grounding wire core conductor and form grounding wire core unit;
Control conductor unit making step: wrap up described electro-insulating rubber outside control conductor conductor and form insulated wire cores, at the reinforced material of insulated wire cores external parcel one deck as enhancement Layer, proof copper-wire braided is adopted to form metal knitted screen layer again, 5-7 root is carried out regular twisted synthesizing cable with the control conductor of metal knitted screen layer around hollow rubber packed column, outside it, then wraps up cotton reinforcing band form control conductor unit;
Optical cable unit manufacturing step: wrap up high temperature resistant TPEE polyester elastomer and form optical fiber cable core after the fine outer rim of ripple fills aramid yarn, 6-8 root optical fiber cable core is carried out regular twisted synthesizing cable around center FRP strengthening core, outside it, then wraps up high-mechanical property chloroprene rubber form optical cable unit;
B, be equilateral triangle arrangement by three power wire core, place control conductor unit respectively in the limit gap of three power wire core, grounding wire core unit and optical cable unit, then fill out the stranded formation cable core of core around center semiconduction;
C, adopt the rubber of flowing property excellence to extrude formation inner sheath outward at cable core, make this rubber can embed cable core gap; D, inner sheath adopt outward diameter be 0.25mm aramid fiber yarn braiding formed antitorque braid, knitting tightness is 30%40%;
E, wear-resisting tear-resistant high-strength rubber is adopted to extrude formation oversheath outward at the outer braid of aramid fiber yarn, plsitive mold is adopted to extrude when extruding oversheath, this rubber is made to embed the gap of aramid fiber yarn braid, oversheath and the outer braid of aramid fiber yarn and inner sheath are bonded as one, form stable firmly shield system.
Further, described cable is cable.
An application for cable, described cable is used in mechanical means.
Further, described mechanical means is lifting machine.
Further, in the manufacturing step of described power wire core: the processing parameter of described three-layer co-extruded forcing machine is: head temperature 95 DEG C ± 3 DEG C, fuselage one district temperature: 85 DEG C ± 3 DEG C, fuselage two district temperature: 80 DEG C ± 3 DEG C.Sulfuration steam pressure is 1.6 ~ 1.7MPa, and forcing machine each district temperature adopts die heater to control, expressing technique thickness 3.4 ~ 3.6mm.
Beneficial effect of the present invention: the electric property insulating resistance value of edge rubber of the present invention reaches 1500M Ω km, shelf depreciation is in static state, bending, partial discharge test after thermal cycling, in voltage 1.73U0 situation, partial discharge test≤5PC.Mechanical property: tensile strength 8.5MPa, disconnected rate elongation 300%.
Embodiment
Electro-insulating rubber implementation step of the present invention is as follows: be that base-material has done a series of research to selecting ethylene-propylene rubber(EPR), have finally chosen Dutch DSM ethylene-propylene rubber(EPR) 8340 and the U.S. bright Sheng ethylene-propylene rubber(EPR) K578, Tao Shi high density polyethylene(HDPE) DFDA1258 is that base-material is blended, wherein Dutch DSM ethylene-propylene rubber(EPR) 8340 is different from other ethylene-propylene diene copolymer with the U.S. bright Sheng ethylene-propylene rubber(EPR) K578, its Third monomer is 1, 4-HD type (1, 4-hexadiene), this is unique in the world, 1, the introducing of-4-hexadiene, ethylene-propylene diene copolymer is made to have excellent thermotolerance, the electric property of processibility and brilliance.
Embodiment 1
One, the manufacture method of electro-insulating rubber of the present invention: comprise the steps:
1, raw material is prepared by following component and weight content:
2, insulation batch mixing is carried out according to the following steps:
1. according to above-mentioned parts by weight ratio, first high density polyethylene(HDPE) DFDA1258 plastic pellet is carried out hot mastication, then entering Banbury mixer with 8340 second third glue together with K578 second third glue carries out mixing, and is mixingly uniformly dispersed, and especially high density polyethylene(HDPE) DFDA1258 should without visual particulate state material.
2. Synergist S-421 95 import calcinated argil, nano zine oxide, anti-aging agent RD, antioxidant MB, Low Density Polyethylene powder FN510, stearic acid, carbon black N-330, mixing 9-10 minute is then added.
3. bound edge filter glue is turned on limit simultaneously, and filter screen adopts each one of 20,40,80 order nets, and every 5 car material change 80 mesh filter screens once, wear and namely all change, then carry out filter glue as net.
4. rubber unvulcanizate not slice, carry out three rollers rolling pages and open 1mm strip, carry out two sections and add sulphur, add triallyl cyanurate (TAC) powder, dicumyl peroxide (DCP), 2360 type paraffin oils, bag tilting machine turns over Bao Sanci, bar slice is opened, slice thickness: 0.50mm after raw material mixes; Width: 250mm.
5. after slice, rubber unvulcanizate carries out cooling process, carries out rubber unvulcanizate storage environment encapsulation process, answers inclusion-free to invade.
Wherein, in the manufacturing step of described power wire core: the processing parameter of described three-layer co-extruded forcing machine is: head temperature 95 DEG C ± 3 DEG C, fuselage one district temperature: 85 DEG C ± 3 DEG C, fuselage two district temperature: 80 DEG C ± 3 DEG C.Sulfuration steam pressure is 1.6 ~ 1.7MPa, and forcing machine each district temperature adopts die heater to control, expressing technique thickness 3.4 ~ 3.6mm.
Two, use described electro-insulating rubber to manufacture the method for cable, comprise the steps:
A, manufacture power wire core, ground connection core, control conductor unit and optical cable unit respectively;
The manufacturing step of power wire core: power wire core unit adopts three-layer co-extruded forcing machine to produce, respectively: wrap up semi-conductive rubber outside conductor and form semiconduction conductor shield, wrap up above-mentioned middle writing that surpasses all the others dish Cable insulation rubber outside semiconduction conductor shield and form insulation layer, wrap up semi-conductive rubber outside insulation layer and form insulation screen, form complete power wire core unit;
The manufacturing step of ground connection core: wrap up semi-conductive rubber outside grounding wire core conductor and form grounding wire core unit;
Control conductor unit making step: wrap up above-mentioned middle writing that surpasses all the others dish Cable insulation rubber outside control conductor conductor and form insulated wire cores, at the reinforced material of insulated wire cores external parcel one deck as enhancement Layer, proof copper-wire braided is adopted to form metal knitted screen layer again, 6 control conductor with metal knitted screen layer are carried out regular twisted synthesizing cable around hollow rubber packed column, outside it, then wraps up cotton reinforcing band form control conductor unit;
Optical cable unit manufacturing step: wrap up high temperature resistant TPEE polyester elastomer and form optical fiber cable core after the fine outer rim of ripple fills aramid yarn, 6 optical fiber cable cores are carried out regular twisted synthesizing cable around center FRP strengthening core, outside it, then wraps up high-mechanical property chloroprene rubber form optical cable unit;
B, be equilateral triangle arrangement by three power wire core, place control conductor unit respectively in the limit gap of three power wire core, grounding wire core unit and optical cable unit, then fill out the stranded formation cable core of core around center semiconduction;
C, adopt the rubber of flowing property excellence to extrude formation inner sheath outward at cable core, make this rubber can embed cable core gap;
D, inner sheath adopt outward diameter be 0.25mm aramid fiber yarn braiding formed antitorque braid, knitting tightness is 40%;
E, wear-resisting tear-resistant high-strength rubber is adopted to extrude formation oversheath outward at the outer braid of aramid fiber yarn, plsitive mold is adopted to extrude when extruding oversheath, this rubber is made to embed the gap of aramid fiber yarn braid, oversheath and the outer braid of aramid fiber yarn and inner sheath are bonded as one, form stable firmly shield system.
Embodiment 2
One, the manufacture method of electro-insulating rubber of the present invention: comprise the steps:
1, raw material is prepared by following component and weight content:
2, insulation batch mixing is carried out according to the following steps:
1. according to above-mentioned parts by weight ratio, first high density polyethylene(HDPE) DFDA1258 particle is carried out hot mastication, then enter Banbury mixer with 8340 second third glue together with K578 second third glue and carry out mixing, especially DFDA1258 should without visual particulate state material.
2. Synergist S-421 95 import calcinated argil, nano zine oxide, anti-aging agent RD, antioxidant MB, Low Density Polyethylene powder FN510, stearic acid, carbon black N-330, mixing 9-10 minute is then added.
3. bound edge filter glue is turned on limit simultaneously, and filter screen adopts each one of 20,40,80 order nets, and every 5 car material change 80 mesh filter screens once, wear and namely all change, then carry out filter glue as net.
4. rubber unvulcanizate not slice, carry out three rollers rolling pages and open 1mm strip, carry out two sections and add sulphur, add triallyl cyanurate (TAC) powder, dicumyl peroxide (DCP), 2360 type paraffin oils, bag tilting machine turns over Bao Sanci, after raw material mixes, opens bar slice; Slice thickness: 0.60mm; Width: 220mm.
5. after slice, rubber unvulcanizate carries out cooling process, carries out rubber unvulcanizate storage environment encapsulation process, answers inclusion-free to invade.
Two, use described electro-insulating rubber to manufacture the method for cable, comprise the steps:
1. power wire core, ground connection core, control conductor unit and optical cable unit is manufactured respectively;
The manufacturing step of power wire core: power wire core unit adopts three-layer co-extruded forcing machine to produce, respectively: wrap up semi-conductive rubber outside conductor and form semiconduction conductor shield, wrap up above-mentioned middle writing that surpasses all the others dish Cable insulation rubber outside semiconduction conductor shield and form insulation layer, wrap up semi-conductive rubber outside insulation layer and form insulation screen, form complete middle pressure cable power wire core unit.
The manufacturing step of ground connection core: wrap up semi-conductive rubber outside grounding wire core conductor and form grounding wire core unit.
Control conductor unit making step: outside control conductor conductor, wrap insulate rubber forms insulated wire cores, at the reinforced material of insulated wire cores external parcel one deck as enhancement Layer, proof copper-wire braided is adopted to form metal knitted screen layer again, 5 control conductor with metal knitted screen layer are carried out twisted synthesizing cable around hollow rubber packed column, outside it, then wraps up cotton reinforcing band form control conductor unit.
Optical cable unit manufacturing step: wrap up high temperature resistant TPEE polyester elastomer and form optical fiber cable core after the fine outer rim of ripple fills aramid yarn, 8 optical fiber cable cores are carried out twisted synthesizing cable around center FRP strengthening core, outside it, then wraps up high-mechanical property chloroprene rubber form optical cable unit;
2. be equilateral triangle arrangement by three power wire core, place control conductor unit respectively in the limit gap of three power wire core, grounding wire core unit and optical cable unit, then fill out the stranded formation cable core of core around center semiconduction;
3. adopt the rubber of flowing property excellence to extrude formation inner sheath outward at cable core, make rubber can embed cable core gap;
4. inner sheath adopt outward diameter be 0.25mm aramid fiber yarn braiding formed antitorque braid, knitting tightness is 30%;
5. wear-resisting tear-resistant high-strength rubber is adopted to extrude formation oversheath outward at the outer braid of aramid fiber yarn, plsitive mold is adopted to extrude when extruding oversheath, rubber is made to embed the gap of aramid fiber yarn braid, oversheath and the outer braid of aramid fiber yarn and inner sheath are bonded as one, form stable firmly shield system.
In the manufacturing step of described power wire core: the processing parameter of described three-layer co-extruded forcing machine is: head temperature 95 DEG C ± 3 DEG C, fuselage one district temperature: 85 DEG C ± 3 DEG C, fuselage two district temperature: 80 DEG C ± 3 DEG C.Sulfuration steam pressure is 1.6 ~ 1.7MPa, and forcing machine each district temperature adopts die heater to control, expressing technique thickness 3.4 ~ 3.6mm.
Embodiment 2
One, the manufacture method of electro-insulating rubber of the present invention: comprise the steps:
1, raw material is prepared by following component and weight content:
2, insulation batch mixing is carried out according to the following steps:
1. according to above-mentioned parts by weight ratio, first high density polyethylene(HDPE) DFDA1258 particle is carried out hot mastication, carry out hot mastication, then entering Banbury mixer with 8340 second third glue together with K578 second third glue carries out mixing, and be mixingly uniformly dispersed, especially high density polyethylene(HDPE) DFDA1258 should without visual particulate state material.
2. then add Synergist S-421 95: import calcinated argil, nano zine oxide, anti-aging agent RD, antioxidant MB, Low Density Polyethylene powder (FN 510), stearic acid, carbon black N 330, continue mixing 9-10 minute.
3. bound edge filter glue is turned on limit simultaneously, and filter screen adopts each one of 20,40,80 order nets, and every 5 car material change 80 mesh filter screens once, wear and namely all change, then carry out filter glue as net.
4. not slice, carry out three rollers rolling pages and open 1mm strip, carry out two sections and add sulphur, add triallyl cyanurate (TAC) powder, dicumyl peroxide (DCP), 2360 type paraffin oils, bag tilting machine turns over Bao Sanci, bar slice is opened, slice thickness: 0.70mm after raw material mixes; Width: 180mm.
5. after slice, rubber unvulcanizate carries out cooling process, carries out rubber unvulcanizate storage environment encapsulation process, answers inclusion-free to invade.
Two, use described electro-insulating rubber to manufacture the method for cable, comprise the steps:
1. the power wire core of cable, ground connection core, control conductor unit and optical cable unit is pressed in manufacturing respectively;
The manufacturing step of power wire core: power wire core unit adopts three-layer co-extruded forcing machine to produce, respectively: wrap up semi-conductive rubber outside conductor and form semiconduction conductor shield, wrap up above-mentioned middle writing that surpasses all the others dish Cable insulation rubber outside semiconduction conductor shield and form insulation layer, wrap up semi-conductive rubber outside insulation layer and form insulation screen, form complete middle pressure cable power wire core unit;
The manufacturing step of ground connection core: wrap up semi-conductive rubber outside grounding wire core conductor and form grounding wire core unit;
Control conductor unit making step: outside control conductor conductor, wrap insulate rubber forms insulated wire cores, at the reinforced material of insulated wire cores external parcel one deck as enhancement Layer, proof copper-wire braided is adopted to form metal knitted screen layer again, 7 control conductor with metal knitted screen layer are carried out twisted synthesizing cable around hollow rubber packed column, outside it, then wraps up cotton reinforcing band form control conductor unit;
Optical cable unit manufacturing step: wrap up high temperature resistant TPEE polyester elastomer and form optical fiber cable core after the fine outer rim of ripple fills aramid yarn, 12 optical fiber cable cores are carried out twisted synthesizing cable around center FRP strengthening core, outside it, then wraps up high-mechanical property chloroprene rubber form optical cable unit;
2. be equilateral triangle arrangement by three power wire core, place control conductor unit respectively in the limit gap of three power wire core, grounding wire core unit and optical cable unit, then fill out the stranded formation cable core of core around center semiconduction;
3. adopt the rubber of flowing property excellence to extrude formation inner sheath outward at cable core, make rubber can embed cable core gap;
4. inner sheath adopt outward diameter be 0.25mm aramid fiber yarn braiding formed antitorque braid, knitting tightness is 35%;
5. wear-resisting tear-resistant high-strength rubber is adopted to extrude formation oversheath outward at the outer braid of aramid fiber yarn, plsitive mold is adopted to extrude when extruding oversheath, rubber is made to embed the gap of aramid fiber yarn braid, oversheath and the outer braid of aramid fiber yarn and inner sheath are bonded as one, form stable firmly shield system.
In the manufacturing step of described power wire core: the processing parameter of described three-layer co-extruded forcing machine is: head temperature 95 DEG C ± 3 DEG C, fuselage one district temperature: 85 DEG C ± 3 DEG C, fuselage two district temperature: 80 DEG C ± 3 DEG C.Sulfuration steam pressure is 1.6 ~ 1.7MPa, and forcing machine each district temperature adopts die heater to control, expressing technique thickness 3.4 ~ 3.6mm.
To the aging front measuring mechanical property result of electro-insulating rubber in embodiment 1 to embodiment 3 as table 1:
| Test subject | Unit | Standard-required | Scheme one | Scheme two | Scheme three |
| Tensile strength | N/mm 2 | ≥4.2 | 8.9 | 8.7 | 9.1 |
| Elongation at break | ％ | ≥200 | 354 | 367 | 336 |
Table 1
Measuring mechanical property result after aging in air oven to electro-insulating rubber in embodiment 1 to embodiment 3 is as table 2:
Table 2
To the test result of the hot elongation test of electro-insulating rubber in embodiment 1 to embodiment 3 as table 3:
Table 3
To the test result of electro-insulating rubber ozone resistance test in embodiment 1 to embodiment 3 as table 4:
Test conditions: temperature 25 ± 2 DEG C, time length 24h, ozone concn 0.025 ~ 0.030%
| Test subject | Standard-required | Scheme one | Scheme two | Scheme three |
| Ozone resistance test | Surface is without cracking | Without cracking | Without cracking | Without cracking |
Table 4
To the test result of electro-insulating rubber insulation resistance in embodiment 1 to embodiment 3 (when 20 DEG C) as table 5:
Table 5
To the test result of electro-insulating rubber partial discharge test in embodiment 1 to embodiment 3 as table 6:
| Test subject | Unit | Standard-required | Scheme one | Scheme two | Scheme three |
| Shelf depreciation | pC | ≤5 | 4.6 | 4.7 | 4.5 |
Table 6
Electro-insulating rubber of the present invention can be used for manufacturing cable.Its cable manufactured can be used as cable in mechanical means, especially can be widely used in lifting machine; Such as, as platen volume cable in lifting machine.
Writing that surpasses all the others dish cable in the lifting machine use adopting electro-insulating rubber of the present invention to manufacture, can meet the working condition requirement of writing that surpasses all the others dish cable in lifting machine use.Above embodiment is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, and any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an electro-insulating rubber, it is characterized in that, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 834065.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K57829.00 ~ 30.00 part, high density polyethylene(HDPE) DFDA12584.50 ~ 5.00 part, dicumyl peroxide DCP 2.00 ~ 2.20 parts, Low Density Polyethylene powder FN5105.50 ~ 6.00 part, triallyl cyanurate TAC 0.50 ~ 0.60 part, antioxidant MB 0.90 ~ 1.00 part, anti-aging agent RD 1.45 ~ 1.50 parts, nano zine oxide 6.50 ~ 7.00 parts, import calcinated argil 118.00 ~ 120.20 parts, stearic acid 0.90 ~ 1.00 part, 2360 type paraffin oils 7.50 ~ 8.00 parts, carbon black N-3302.40 ~ 2.50 part.
2. a kind of electro-insulating rubber as claimed in claim 1, it is characterized in that, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 834065.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K57829.00 part, high density polyethylene(HDPE) DFDA12584.50 part, dicumyl peroxide DCP 2.00 parts, Low Density Polyethylene powder FN5105.50 part, triallyl cyanurate TAC 0.50 part, antioxidant MB 0.90 part, anti-aging agent RD 1.45 parts, nano zine oxide 6.50 parts, import calcinated argil 118.00 parts, stearic acid 0.90 part, 2360 type paraffin oils 7.50 parts, carbon black N-3302.40 part.
3. a kind of electro-insulating rubber as claimed in claim 1, it is characterized in that, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 834065.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K57829.50 part, high density polyethylene(HDPE) DFDA12584.75 part, dicumyl peroxide DCP 2.15 parts, Low Density Polyethylene powder FN5105.75 part, triallyl cyanurate TAC 0.55 part, antioxidant MB 0.95 part, anti-aging agent RD 1.425 parts, nano zine oxide 6.75 parts, import calcinated argil 119.00 parts, stearic acid 0.95 part, 2360 type paraffin oils 7.75 parts, carbon black N-3302.45 part.
4. a kind of electro-insulating rubber as claimed in claim 1, it is characterized in that, described electro-insulating rubber per car is made up of the raw material of following parts by weight: 834065.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K57830.00 part, high density polyethylene(HDPE) DFDA12585.00 part, dicumyl peroxide DCP 2.20 parts, Low Density Polyethylene powder FN5106.00 part, triallyl cyanurate TAC 0.60 part, antioxidant MB 1.00 parts, anti-aging agent RD 1.50 parts, nano zine oxide 7.00 parts, import calcinated argil 120.20 parts, stearic acid 1.00 parts, 2360 type paraffin oils 8.00 parts, carbon black N-3302.50 part.
5. a manufacture method for the electro-insulating rubber as described in any one of claim 1-4, is characterized in that, comprises the steps:
(1), per car weighs according to the raw material of following parts by weight: 834065.00 parts, ethylene-propylene rubber(EPR), ethylene-propylene rubber(EPR) K57829.00 ~ 30.00 part, high density polyethylene(HDPE) DFDA12584.50 ~ 5.00 part, dicumyl peroxide DCP 2.00 ~ 2.20 parts, Low Density Polyethylene powder FN 5105.50 ~ 6.00 parts, triallyl cyanurate TAC 0.50 ~ 0.60 part, antioxidant MB 0.90 ~ 1.00 part, anti-aging agent RD 1.45 ~ 1.50 parts, nano zine oxide 6.50 ~ 7.00 parts, import calcinated argil 118.00 ~ 120.20 parts, stearic acid 0.90 ~ 1.00 part, 2360 type paraffin oils 7.50 ~ 8.00 parts, carbon black N-3302.40 ~ 2.50 part,
(2), calendering process
1. according to above-mentioned parts by weight ratio, first high density polyethylene(HDPE) DFDA1258 is carried out hot mastication, then enter Banbury mixer with ethylene-propylene rubber(EPR) 8340 and carry out mixing together with ethylene-propylene rubber(EPR) K578; Wherein, high density polyethylene(HDPE) DFDA1258 should without visual particulate state material;
2. then add Synergist S-421 95: import calcinated argil, nano zine oxide, anti-aging agent RD, antioxidant MB, Low Density Polyethylene powder FN510, stearic acid, carbon black N-330, continue mixing 9-10 minute;
3. bound edge filter glue is turned on limit simultaneously, and filter screen adopts each one of 20,40 and 80 order nets, and every 5 car material change 80 mesh filter screens once; Namely all change if net is worn, then carry out filter glue;
4. rubber unvulcanizate not slice, carries out three rollers rolling pages and opens 1mm strip, carry out two sections and add sulphur; Add triallyl cyanurate TAC, dicumyl peroxide DCP, 2360 type paraffin oils, bag tilting machine turns over Bao Sanci, opens bar slice after raw material is mixed, and slice thickness is: 0.50 ~ 0.70mm, width is: 180 ~ 250mm;
5. after slice, rubber unvulcanizate carries out cooling process and storage environment encapsulation process.
6. use the cable that electro-insulating rubber described in any one of claim 1-4 manufactures, it is characterized in that, this cable is adopted and is prepared with the following method, and step is as follows:
A, manufacture power wire core, ground connection core, control conductor unit and optical cable unit respectively;
The manufacturing step of power wire core: power wire core unit adopts three-layer co-extruded forcing machine to produce, respectively: wrap up semi-conductive rubber outside conductor and form semiconduction conductor shield, wrap up described electro-insulating rubber outside semiconduction conductor shield and form insulation layer, wrap up semi-conductive rubber outside insulation layer and form insulation screen, form complete power wire core unit;
The manufacturing step of ground connection core: wrap up semi-conductive rubber outside grounding wire core conductor and form grounding wire core unit;
Control conductor unit making step: wrap up described electro-insulating rubber outside control conductor conductor and form insulated wire cores, at the reinforced material of insulated wire cores external parcel one deck as enhancement Layer, proof copper-wire braided is adopted to form metal knitted screen layer again, 5-7 root is carried out regular twisted synthesizing cable with the control conductor of metal knitted screen layer around hollow rubber packed column, outside it, then wraps up cotton reinforcing band form control conductor unit;
Optical cable unit manufacturing step: wrap up high temperature resistant TPEE polyester elastomer and form optical fiber cable core after the fine outer rim of ripple fills aramid yarn, 6-8 root optical fiber cable core is carried out regular twisted synthesizing cable around center FRP strengthening core, outside it, then wraps up high-mechanical property chloroprene rubber form optical cable unit;
B, be equilateral triangle arrangement by three power wire core, place control conductor unit respectively in the limit gap of three power wire core, grounding wire core unit and optical cable unit, then fill out the stranded formation cable core of core around center semiconduction;
C, adopt the rubber of flowing property excellence to extrude formation inner sheath outward at cable core, make this rubber can embed cable core gap; D, inner sheath adopt outward diameter be 0.25mm aramid fiber yarn braiding formed antitorque braid, knitting tightness is 30%40%;
E, wear-resisting tear-resistant high-strength rubber is adopted to extrude formation oversheath outward at the outer braid of aramid fiber yarn, plsitive mold is adopted to extrude when extruding oversheath, this rubber is made to embed the gap of aramid fiber yarn braid, oversheath and the outer braid of aramid fiber yarn and inner sheath are bonded as one, form stable firmly shield system.
7. cable as claimed in claim 6, it is characterized in that, described cable is cable.
8. an application for cable as claimed in claim 7, is characterized in that, described cable is used in mechanical means.
9. the application of cable as claimed in claim 8, it is characterized in that, described mechanical means is lifting machine.
10. lifting machine as claimed in claim 6 with in the manufacture method of writing that surpasses all the others dish Cable insulation rubber, it is characterized in that, in the manufacturing step of described power wire core: the processing parameter of described three-layer co-extruded forcing machine is: head temperature 95 DEG C ± 3 DEG C, fuselage one district temperature: 85 DEG C ± 3 DEG C, fuselage two district temperature: 80 DEG C ± 3 DEG C.Sulfuration steam pressure is 1.6 ~ 1.7MPa, and forcing machine each district temperature adopts die heater to control, expressing technique thickness 3.4 ~ 3.6mm.
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| CN105694159A (en) * | 2016-04-13 | 2016-06-22 | 苏州锦腾电子科技有限公司 | High-temperature-resistant fiber-reinforced insulation material and preparation method thereof |
| CN107103954A (en) * | 2017-05-03 | 2017-08-29 | 安徽凌宇电缆科技有限公司 | A kind of harbour mobile flexible cable that blocks water that resists cold |
| CN107301897A (en) * | 2016-04-14 | 2017-10-27 | 陈海燕 | High pressure curl cable and preparation method thereof |
| CN108264667A (en) * | 2017-11-27 | 2018-07-10 | 安徽华星电缆集团有限公司 | A kind of midium voltage cable insulating materials |
| CN108570192A (en) * | 2017-03-09 | 2018-09-25 | 常州船用电缆有限责任公司 | A kind of cable insulation material and preparation method thereof |
| EP3580274A4 (en) * | 2017-02-07 | 2020-09-09 | Dow Global Technologies LLC | Process for foaming polyolefin compositions using a modified high density polyethylene |
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| CN105694159A (en) * | 2016-04-13 | 2016-06-22 | 苏州锦腾电子科技有限公司 | High-temperature-resistant fiber-reinforced insulation material and preparation method thereof |
| CN107301897A (en) * | 2016-04-14 | 2017-10-27 | 陈海燕 | High pressure curl cable and preparation method thereof |
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| EP3580274A4 (en) * | 2017-02-07 | 2020-09-09 | Dow Global Technologies LLC | Process for foaming polyolefin compositions using a modified high density polyethylene |
| US11407873B2 (en) | 2017-02-07 | 2022-08-09 | Dow Global Technologies Llc | Process for foaming polyolefin compositions using a modified high density polyethylene |
| CN108570192A (en) * | 2017-03-09 | 2018-09-25 | 常州船用电缆有限责任公司 | A kind of cable insulation material and preparation method thereof |
| CN107103954A (en) * | 2017-05-03 | 2017-08-29 | 安徽凌宇电缆科技有限公司 | A kind of harbour mobile flexible cable that blocks water that resists cold |
| CN108264667A (en) * | 2017-11-27 | 2018-07-10 | 安徽华星电缆集团有限公司 | A kind of midium voltage cable insulating materials |
| CN114550985A (en) * | 2022-04-24 | 2022-05-27 | 海门南洋电工器材有限公司 | Environment-friendly insulating cable and processing technology thereof |
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Application publication date: 20150909 |