CN107163531A - Outdoor high-intensity composite cable insulating materials and preparation method thereof - Google Patents
Outdoor high-intensity composite cable insulating materials and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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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
- H01B3/42—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 polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
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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
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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- C08L2203/00—Applications
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- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
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- 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 discloses a kind of outdoor high-intensity composite cable insulating materials and preparation method thereof, the heat conducting pipe being coaxially disposed including the first insulation sleeve and inside first insulation sleeve and with first insulation sleeve, the heat conducting pipe is connected by multiple thermally conductive sheets with the inwall of first insulation sleeve, so that being formed with cavity between two adjacent thermally conductive sheets, the second insulation sleeve is fixed with the cavity, the outer wall of second insulation sleeve is at least partly in contact with the thermally conductive sheet, radially direction caves inward and is formed with multiple grooves for the outer surface of first insulation sleeve, abrasion resistant particles are fixed with the groove, the abrasion resistant particles are at least partially disposed at outside the groove, to form bulge-structure；Solve that the existing cable cover(ing) capacity of heat transmission is weaker, scattering and disappearing for cable internal heat is hindered to a certain extent, the aggregation of heat can accelerate the aging speed of sheath so that the decline of its surface abrasion resistance ability, so that the problem of shortening the life-span of cable.
Description
Technical field
The present invention relates to cable preparation field, in particular it relates to a kind of outdoor high-intensity composite cable insulating materials and its
Preparation method.
Background technology
The sheath of cable is adiabatic mostly, and its thermal conductivity factor is general in 0.2W/ (mK) left and right, and this causes sheath carrying
While for insulating properties, scattering and disappearing for cable internal heat is hindered to a certain extent, the aggregation of heat can accelerate the old of sheath
Change speed so that its surface abrasion resistance ability declines, so as to shorten the life-span of cable.
The content of the invention
It is an object of the invention to provide a kind of outdoor high-intensity composite cable insulating materials and preparation method thereof, solve existing
Some cable cover(ing) capacity of heat transmission is weaker, scattering and disappearing for cable internal heat is hindered to a certain extent, the aggregation of heat can add
The aging speed of fast sheath so that its surface abrasion resistance ability declines, so that the problem of shortening the life-span of cable.
To achieve these goals, the invention provides a kind of outdoor high-intensity composite cable insulating materials, including first
Insulation sleeve and the heat conducting pipe being coaxially disposed inside first insulation sleeve and with first insulation sleeve, the heat conducting pipe lead to
The inwall that multiple thermally conductive sheets are crossed with first insulation sleeve is connected so that be formed with cavity between two adjacent thermally conductive sheets,
The second insulation sleeve is fixed with the cavity, the outer wall of second insulation sleeve is at least partly in contact with the thermally conductive sheet, institute
Stating the outer surface of the first insulation sleeve, radially direction is caved inward and is formed with multiple grooves, and wear-resisting is fixed with the groove
Grain, the abrasion resistant particles are at least partially disposed at outside the groove, to form bulge-structure；
Constituting the raw material of the abrasion resistant particles at least includes：Schmigel, zirconium oxide, silica, diatomite, nitrile rubber powder
With F826 adhesives；
Constituting the raw material of the heat conducting pipe at least includes：Polyisoprene, paraffin, aluminum oxide and coupling agent KH550；
First insulation sleeve and second insulation sleeve are phase same material, and constituting its raw material at least includes：Alkyd tree
Fat, epoxy resin, cresols, butanol etherification amino resins, acrylic resin, ethyl acetate, high clay, glass fibre, curing agent
And plasticizer.
Present invention also offers a kind of preparation method of cable insulation material, the preparation method includes：
1) preparation of insulation sleeve：By alkyd resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin and
First time mixing is carried out after ethyl acetate mixing, the temperature of mixing is 50-70 DEG C for the first time, the time of mixing is 20- for the first time
40min；
Mixing for the first time sequentially adds high clay, glass fibre, curing agent and plasticizer and carries out second of mixing after terminating,
The temperature of second mixing is 100-110 DEG C, and the time of second of mixing is 15-25min, it is compressing after obtain the first insulation
Set and the second insulation sleeve；
The outer surface of first insulation sleeve 1 is subjected to hot-pressing processing so that the first insulation sleeve outer surface is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：By schmigel, zirconium oxide, silica, diatomite, nitrile rubber powder and F826 adhesives
The thermoforming at 70-80 DEG C, obtains abrasion resistant particles after mixing；
3) preparation of heat conducting pipe：Through extrusion forming after polyisoprene, paraffin, aluminum oxide and coupling agent KH550 are mixed
After obtain heat conducting pipe；
4) the obtained heat conducting pipe is placed in first insulation sleeve, one end of thermally conductive sheet is adhesive in the heat conduction
The outer wall of pipe, the other end is adhesive between the inwall of first insulation sleeve, two adjacent thermally conductive sheets and forms cavity；
5) the described second insulation is placed in the cavity, the outer wall of second insulation sleeve and the thermally conductive sheet is entered
The gluing processing of row, the abrasion resistant particles are bonded in the groove, cable insulation material is obtained.
By above-mentioned technical proposal, the invention provides a kind of outdoor high-intensity composite cable insulating materials, including first
Insulation sleeve and the heat conducting pipe being coaxially disposed inside first insulation sleeve and with first insulation sleeve, the heat conducting pipe lead to
The inwall that multiple thermally conductive sheets are crossed with first insulation sleeve is connected so that be formed with cavity between two adjacent thermally conductive sheets,
The second insulation sleeve is fixed with the cavity, the outer wall of second insulation sleeve is at least partly in contact with the thermally conductive sheet, institute
Stating the outer surface of the first insulation sleeve, radially direction is caved inward and is formed with multiple grooves, and wear-resisting is fixed with the groove
Grain, the abrasion resistant particles are at least partially disposed at outside the groove, to form bulge-structure；The cable insulation material that the present invention is provided
The first insulation sleeve, the second insulation sleeve and heat conducting pipe in material possess excellent heat conductivility, and it is exhausted that the core of cable is arranged on second
In edge set, the heat that core is produced can be conducted to the first insulation sleeve by thermally conductive sheet, and be distributed to the external world, and thermally conductive sheet also can
Good supporting role is enough produced so that form cavity between the second insulation sleeve and the first insulation sleeve, beneficial to sheath internal heat
Circulation, accelerated heat scatter and disappear, further, heat conducting pipe is provided with the first insulation sleeve, heat conducting pipe can produce core
Heat be evenly distributed on thermally conductive sheet, prevent core from locally producing high temperature and damage produced to sheath, the first insulation sleeve it is outer
Surface is further fixed on abrasion resistant particles, can greatly improve the overall wearability of sealing sheath；Present invention also offers a kind of cable
The preparation method of insulating materials, the preparation method is simple, and raw material is easy to get so that obtained sheath heat-sinking capability and mechanical performance are more
It is excellent so that it possesses certain abrasive resistance.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic cross-section for the cable insulation material that the present invention is provided.
Description of reference numerals
1- the first insulation sleeve the second insulation sleeves of 2-
3- heat conducting pipe 4- thermally conductive sheets
5- cavity 6- abrasion resistant particles
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points and any value of disclosed scope are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
The invention provides a kind of outdoor high-intensity composite cable insulating materials, including the first insulation sleeve 1 and positioned at described
The inside of first insulation sleeve 1 and the heat conducting pipe 3 being coaxially disposed with first insulation sleeve 1, the heat conducting pipe 3 pass through multiple thermally conductive sheets
4 are connected with the inwall of first insulation sleeve 1 so that cavity 5, the cavity 5 are formed between two adjacent thermally conductive sheets 4
The second insulation sleeve 2 is inside fixed with, the outer wall of second insulation sleeve 2 is at least partly in contact with the thermally conductive sheet 4；Described first
Radially direction is caved inward and is formed with multiple grooves for the outer surface of insulation sleeve 1, and abrasion resistant particles 6 are fixed with the groove,
The abrasion resistant particles 6 are at least partially disposed at outside the groove, to form bulge-structure；
Constituting the raw material of the abrasion resistant particles 6 at least includes：Schmigel, zirconium oxide, silica, diatomite, NBR
Powder and F826 adhesives；
Constituting the raw material of the heat conducting pipe 3 at least includes：Polyisoprene, paraffin, aluminum oxide and coupling agent KH550；
First insulation sleeve 1 and second insulation sleeve 2 are phase same material, and constituting its raw material at least includes：Alkyd
Resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin, ethyl acetate, high clay, glass fibre, solidification
Agent and plasticizer.
The present invention it is a kind of preferred embodiment in, in order that obtained cable insulation material possesses more excellent
Heat-sinking capability and abrasive resistance, so that its ageing resistance is improved, relative to the polyisoprene of 100 parts by weight, institute
The consumption for stating paraffin is 15-25 parts by weight, and the consumption of the aluminum oxide is 5-12 parts by weight, the consumption of the coupling agent KH550
For 2-8 parts by weight；
Relative to the alkyd resin of 100 parts by weight, the consumption of the epoxy resin is 20-40 parts by weight, the first
The consumption of phenol is 5-12 parts by weight, and the consumption of the butanol etherification amino resins is 25-45 parts by weight, the acrylic resin
Consumption is 5-20 parts by weight, and the consumption of the ethyl acetate is 30-60 parts by weight, and the consumption of the high clay is 2-10 weight
Part, the consumption of the glass fibre is 2-10 parts by weight, and the consumption of the curing agent is 2-5 parts by weight, the use of the plasticizer
Measure as 2-5 parts by weight；
Relative to the schmigel of 100 parts by weight, the consumption of the zirconium oxide is 30-60 parts by weight, the silica
Consumption is 15-25 parts by weight, and the diatomaceous consumption is 2-10 parts by weight, and the consumption of the nitrile rubber powder is 30-50 weight
Part, the consumption of the F826 adhesive is 30-50 parts by weight.
The present invention it is a kind of preferred embodiment in, in order that obtained cable insulation material possesses more excellent
Heat-sinking capability and abrasive resistance, so as to improve its ageing resistance, the curing agent is diethylenetriamine and/or isophthalic diformazan
Amine.
The present invention it is a kind of preferred embodiment in, in order that obtained cable insulation material possesses more excellent
Heat-sinking capability and abrasive resistance, so as to improve its ageing resistance, the plasticizer is dioctyl phthalate, inclined benzene three
One or more in sour three monooctyl esters and the acid esters of epoxy glycerite three.
The present invention it is a kind of preferred embodiment in, reduce production cost on the premise of, in order that thermally conductive sheet 4
Can preferably heat conduction, the thermally conductive sheet 4 be copper sheet and/or aluminium flake.
The present invention it is a kind of preferred embodiment in, in order that obtained cable insulation material possesses more excellent
Heat-sinking capability and abrasive resistance, the thickness of first insulation sleeve 1 is 5-8mm, and the thickness of second insulation sleeve 2 is 2-
5mm。
The present invention it is a kind of preferred embodiment in, in order that obtained cable insulation material possesses more excellent
Heat-sinking capability and abrasive resistance, on the basis of the area in the footpath section of first insulation sleeve 1, second insulation sleeve 2
The area in footpath section accounts for 60-70%.
Present invention also offers a kind of preparation method of cable insulation material, the preparation method includes：
1) preparation of insulation sleeve：By alkyd resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin and
First time mixing is carried out after ethyl acetate mixing, the temperature of mixing is 50-70 DEG C for the first time, the time of mixing is 20- for the first time
40min；
Mixing for the first time sequentially adds high clay, glass fibre, curing agent and plasticizer and carries out second of mixing after terminating,
The temperature of second mixing is 100-110 DEG C, and the time of second of mixing is 15-25min, it is compressing after obtain the first insulation
The insulation sleeve 2 of set 1 and second；
The outer surface of first insulation sleeve 1 is subjected to hot-pressing processing so that the outer surface of the first insulation sleeve 1 is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：By schmigel, zirconium oxide, silica, diatomite, nitrile rubber powder and F826 adhesives
The thermoforming at 70-80 DEG C after mixing, obtains abrasion resistant particles 6；
3) preparation of heat conducting pipe：Through extrusion forming after polyisoprene, paraffin, aluminum oxide and coupling agent KH550 are mixed
After obtain heat conducting pipe 3；
4) the obtained heat conducting pipe 3 is placed in first insulation sleeve 1, one end of thermally conductive sheet 4 be adhesive in described
The outer wall of heat conducting pipe 3, the other end is adhesive between the inwall of first insulation sleeve 1, two adjacent thermally conductive sheets 4 and forms cavity
5；
5) second insulation sleeve 2 is placed in the cavity 5, by the outer wall of second insulation sleeve 2 and the heat conduction
Piece 4 carries out gluing processing, and the abrasion resistant particles 6 are bonded in the groove, cable insulation material is obtained.
The present invention will be described in detail by way of examples below.In following examples, polyisoprene is again divided equally
Son amount is 4000-6000, and the weight average molecular weight of alkyd resin is 7000-8000, and the weight average molecular weight of epoxy resin is 5000-
9000, the weight average molecular weight of butanol etherification amino resins is 9000-10000, and the weight average molecular weight of acrylic resin is 4000-
5000。
Embodiment 1
1) preparation of insulation sleeve：By 100g alkyd resins, 20g epoxy resin, 5g cresols, 25g butanol etherifications amino resins,
First time mixing is carried out after 5g acrylic resins and the mixing of 30g ethyl acetate, the temperature of mixing is 50 DEG C for the first time, mixed for the first time
The time of refining is 20min；Mixing sequentially adds the high clays of 2g, 2g glass fibres, 2g diethylenetriamines and 2g after terminating for the first time
Dioctyl phthalate carries out second and kneaded, and the temperature of second of mixing is 100 DEG C, and the time of second of mixing is
15min, it is compressing after obtain the first insulation sleeve 1 and the second insulation sleeve 2；
The outer surface of first insulation sleeve 1 is subjected to hot-pressing processing so that the outer surface of the first insulation sleeve 1 is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：By 100g schmigels, 30g zirconium oxides, 15g silica, 2g diatomite, 30g butyronitrile
The thermoforming at 70 DEG C after rubber powder and the mixing of 30gF826 adhesives, obtains abrasion resistant particles 6；
3) preparation of heat conducting pipe：After 100g polyisoprene, 15g paraffin, 5g aluminum oxide and 2g coupling agents KH550 are mixed
Heat conducting pipe 3 is obtained after extrusion forming；
4) the obtained heat conducting pipe 3 is placed in first insulation sleeve 1, one end of thermally conductive sheet 4 be adhesive in described
The outer wall of heat conducting pipe 3, the other end is adhesive between the inwall of first insulation sleeve 1, two adjacent thermally conductive sheets 4 and forms cavity
5；
5) second insulation sleeve 2 is placed in the cavity 5, by the outer wall of second insulation sleeve 2 and the heat conduction
Piece 4 carries out gluing processing, and the abrasion resistant particles 6 are bonded in the groove, base substrate is obtained, and base substrate is dried into (drying
Temperature be 50-70 DEG C, time of drying is 24-36h) obtain cable insulation material A1；Wherein thermally conductive sheet 4 is copper sheet, is made
The thickness of the first insulation sleeve 1 be 5mm, the thickness of second insulation sleeve 2 is 2mm, and the quantity of the second insulation sleeve 2 is 4, with
On the basis of the area in the footpath section of the first insulation sleeve 1, the gross area in the footpath section of the second insulation sleeve 2 accounts for 60%.
Embodiment 2
1) preparation of insulation sleeve：By 100g alkyd resins, 40g epoxy resin, 12g cresols, 45g butanol etherification amino trees
First time mixing is carried out after fat, 20g acrylic resins and the mixing of 60g ethyl acetate, the temperature of mixing is 70 DEG C, first for the first time
The time of secondary mixing is 40min；Mixing sequentially adds the high clays of 10g, 10g glass fibres, 5g isophthalic diformazans after terminating for the first time
Amine and 5g trioctyl trimellitate (TOTM)s carry out second and kneaded, and the temperature of second of mixing is 110 DEG C, and the time of second of mixing is
25min, it is compressing after obtain the first insulation sleeve 1 and the second insulation sleeve 2；
The outer surface of first insulation sleeve 1 is subjected to hot-pressing processing so that the outer surface of the first insulation sleeve 1 is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：By 100g schmigels, 60g zirconium oxides, 25g silica, 10g diatomite, 50g butyronitrile
The thermoforming at 70-80 DEG C after rubber powder and the mixing of 40gF826 adhesives, obtains abrasion resistant particles 6；
3) preparation of heat conducting pipe：100g polyisoprene, 25g paraffin, 12g aluminum oxide and 8g coupling agents KH550 are mixed
By obtaining heat conducting pipe 3 after extrusion forming；
4) the obtained heat conducting pipe 3 is placed in first insulation sleeve 1, one end of thermally conductive sheet 4 be adhesive in described
The outer wall of heat conducting pipe 3, the other end is adhesive between the inwall of first insulation sleeve 1, two adjacent thermally conductive sheets 4 and forms cavity
5；
5) second insulation sleeve 2 is placed in the cavity 5, by the outer wall of second insulation sleeve 2 and the heat conduction
Piece 4 carries out gluing processing, and the abrasion resistant particles 6 are bonded in the groove, base substrate is obtained, and base substrate is dried into (drying
Temperature be 70 DEG C, time of drying is 36h) obtain cable insulation material A2；Wherein thermally conductive sheet 4 is aluminium flake, obtained first
The thickness of insulation sleeve 1 is 8mm, and the thickness of second insulation sleeve 2 is 8mm, and the quantity of the second insulation sleeve 2 is 4, exhausted with first
On the basis of the area in the footpath section of edge set 1, the gross area in the footpath section of the second insulation sleeve 2 accounts for 70%.
Embodiment 3
1) preparation of insulation sleeve：By 100g alkyd resins, 30g epoxy resin, 8g cresols, 35g butanol etherifications amino resins,
First time mixing is carried out after 12g acrylic resins and the mixing of 45g ethyl acetate, the temperature of mixing is 60 DEG C for the first time, for the first time
The time of mixing is 30min；For the first time mixing terminate after sequentially add the high clays of 5g, 6g glass fibres, 3g m-xylene diamines and
The acid esters of 3g epoxy glycerites three carries out second and kneaded, and the temperature of second of mixing is 105 DEG C, and the time of second of mixing is
20min, it is compressing after obtain the first insulation sleeve 1 and the second insulation sleeve 2；
The outer surface of first insulation sleeve 1 is subjected to hot-pressing processing so that the outer surface of the first insulation sleeve 1 is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：By 100g schmigels, 45g zirconium oxides, 20g silica, 5g diatomite, 40g butyronitrile
The thermoforming at 75 DEG C after rubber powder and the mixing of 40gF826 adhesives, obtains abrasion resistant particles 6；
3) preparation of heat conducting pipe：After 100g polyisoprene, 20g paraffin, 8g aluminum oxide and 5g coupling agents KH550 are mixed
Heat conducting pipe 3 is obtained after extrusion forming；
4) the obtained heat conducting pipe 3 is placed in first insulation sleeve 1, one end of thermally conductive sheet 4 be adhesive in described
The outer wall of heat conducting pipe 3, the other end is adhesive between the inwall of first insulation sleeve 1, two adjacent thermally conductive sheets 4 and forms cavity
5；
5) second insulation sleeve 2 is placed in the cavity 5, by the outer wall of second insulation sleeve 2 and the heat conduction
Piece 4 carries out gluing processing, and the abrasion resistant particles 6 are bonded in the groove, base substrate is obtained, and base substrate is dried into (drying
Temperature be 60 DEG C, time of drying is 30h) obtain cable insulation material A3；Wherein thermally conductive sheet 4 is aluminium flake, obtained first
The thickness of insulation sleeve 1 is 6mm, and the thickness of second insulation sleeve 2 is 3mm, and the quantity of the second insulation sleeve 2 is 4, exhausted with first
On the basis of the area in the footpath section of edge set 1, the gross area in the footpath section of the second insulation sleeve 2 accounts for 65%.
Comparative example 1
Carried out according to the method for embodiment 3, unlike, the polyisoprene relative to 100g, the paraffin
Consumption is 10g, and the consumption of the aluminum oxide is 3g, and the consumption of the coupling agent KH550 is 1g；The alkyd relative to 100g
Resin, the consumption of the epoxy resin is 15g, and the consumption of the cresols is 3g, and the consumption of the butanol etherification amino resins is
20g, the consumption of the acrylic resin is 3g, and the consumption of the ethyl acetate is 30g, and the consumption of the high clay is 1g, institute
The consumption for stating glass fibre is 1g, and the consumption of the m-xylene diamine is 1g, and the consumption of the acid esters of epoxy glycerite three is 1g, phase
For 100g schmigel, the consumption of the zirconium oxide is 65g, and the consumption of the silica is 30g, the diatomaceous use
Measure as 12g, the consumption of the nitrile rubber powder is 55g, and the consumption of the F826 adhesive is 55g, obtains cable insulation material D1.
Comparative example 2
Carried out according to the method for embodiment 3, unlike, the polyisoprene relative to 100g, the paraffin
Consumption is 30g, and the consumption of the aluminum oxide is 15g, and the consumption of the coupling agent KH550 is 10g；The alcohol relative to 100g
Acid resin, the consumption of the epoxy resin is 45g, and the consumption of the cresols is 15g, the consumption of the butanol etherification amino resins
For 50g, the consumption of the acrylic resin is 25g, and the consumption of the ethyl acetate is 65g, and the consumption of the high clay is
12g, the consumption of the glass fibre is 12g, and the consumption of the m-xylene diamine is 7g, the consumption of the acid esters of epoxy glycerite three
For 7g, the schmigel relative to 100g, the consumption of the zirconium oxide is 20g, and the consumption of the silica is 10g, the silicon
The consumption of diatomaceous earth is 1g, and the consumption of the nitrile rubber powder is 20g, and the consumption of the F826 adhesive is 20g；Obtain cable insulation
Material D2.
Comparative example 3
According to embodiment 3 method carry out, unlike, for the first time mixing temperature be 40 DEG C, for the first time mixing when
Between be 15min, the temperature of second mixing is 90 DEG C, and the time of second of mixing is 10min；Obtain cable insulation material D3.
Comparative example 4
According to embodiment 3 method carry out, unlike, for the first time mixing temperature be 75 DEG C, for the first time mixing when
Between be 45min, the temperature of second mixing is 120 DEG C, and the time of second of mixing is 30min；Obtain cable insulation material D4.
Test case
Electrical strength, thermal conductivity factor and anti-wear performance are carried out to obtained cable insulation material A1-A3 and D1-D4 to determine；
Wherein, electrical strength is measured according to the standards of GB/T 1408.1-2006, and thermal conductivity factor is according to ASTM C 518-10 standards
It is measured, anti-wear performance is measured according to international Martindale's standard, and testing result is shown in Table 1.
Table 1
| Embodiment is numbered | Electrical strength (normality) | Thermal conductivity factor | Anti-wear performance |
| Embodiment 1 | 22.8MV/m | 0.32W/(m·K) | Surface is without obvious cut |
| Embodiment 2 | 23.2MV/m | 0.33W/(m·K) | Surface is without obvious cut |
| Embodiment 3 | 24.1MV/m | 0.35W/(m·K) | Surface is without obvious cut |
| Comparative example 1 | 20.3MV/m | 0.14W/(m·K) | There is shadow scratch on surface |
| Comparative example 2 | 21.2MV/m | 0.11W/(m·K) | There is severe marking on surface |
| Comparative example 3 | 20.5MV/m | 0.12W/(m·K) | There is shadow scratch on surface |
| Comparative example 4 | 20.9MV/m | 0.13W/(m·K) | There is shadow scratch on surface |
Cable insulation material A1-A3 obtained within the scope of the present invention is can be seen that by upper table data, it possesses excellent
Heat conductivility and electrical property and anti-wear performance, and outside the scope of the invention obtained sheath D1-D4, its various aspects of performance is relative
It is poor.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of outdoor high-intensity composite cable insulating materials, it is characterised in that including the first insulation sleeve (1) and positioned at described
One insulation sleeve (1) inside and the heat conducting pipe (3) being coaxially disposed with first insulation sleeve (1), the heat conducting pipe (3) is by multiple
Thermally conductive sheet (4) is connected with the inwall of first insulation sleeve (1) so that form free between two adjacent thermally conductive sheets (4)
Chamber (5), is fixed with the second insulation sleeve (2) in the cavity (5), the outer wall of second insulation sleeve (2) at least partly with it is described
Thermally conductive sheet (4) is in contact, and radially direction caves inward and is formed with multiple grooves for the outer surface of first insulation sleeve (1),
Abrasion resistant particles (6) are fixed with the groove, the abrasion resistant particles (6) are at least partially disposed at outside the groove, convex to be formed
Play structure；
Constituting the raw material of the abrasion resistant particles (6) at least includes：Schmigel, zirconium oxide, silica, diatomite, nitrile rubber powder
With F826 adhesives；
Constituting the raw material of the heat conducting pipe (3) at least includes：Polyisoprene, paraffin, aluminum oxide and coupling agent KH550；
First insulation sleeve (1) and second insulation sleeve (2) are phase same material, and constituting its raw material at least includes：Alkyd
Resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin, ethyl acetate, high clay, glass fibre, solidification
Agent and plasticizer.
2. cable insulation material according to claim 1, wherein, relative to the polyisoprene of 100 parts by weight, institute
The consumption for stating paraffin is 15-25 parts by weight, and the consumption of the aluminum oxide is 5-12 parts by weight, the consumption of the coupling agent KH550
For 2-8 parts by weight；
Relative to the alkyd resin of 100 parts by weight, the consumption of the epoxy resin is 20-40 parts by weight, the cresols
Consumption is 5-12 parts by weight, and the consumption of the butanol etherification amino resins is 25-45 parts by weight, the consumption of the acrylic resin
For 5-20 parts by weight, the consumption of the ethyl acetate is 30-60 parts by weight, and the consumption of the high clay is 2-10 parts by weight, institute
The consumption for stating glass fibre is 2-10 parts by weight, and the consumption of the curing agent is 2-5 parts by weight, and the consumption of the plasticizer is 2-
5 parts by weight；
Relative to the schmigel of 100 parts by weight, the consumption of the zirconium oxide is 30-60 parts by weight, the consumption of the silica
For 15-25 parts by weight, the diatomaceous consumption is 2-10 parts by weight, and the consumption of the nitrile rubber powder is 30-50 parts by weight, institute
The consumption for stating F826 adhesive is 30-50 parts by weight.
3. cable insulation material according to claim 1 or 2, wherein, the curing agent is diethylenetriamine and/or isophthalic
Dimethylamine.
4. cable insulation material according to claim 1 or 2, wherein, the plasticizer is dioctyl phthalate, partially
One or more in the monooctyl ester of benzenetricarboxylic acid three and the acid esters of epoxy glycerite three.
5. cable insulation material according to claim 1 or 2, wherein, the thermally conductive sheet (4) is copper sheet and/or aluminium flake.
6. cable insulation material according to claim 1 or 2, wherein, the thickness of first insulation sleeve (1) is 5-8mm,
The thickness of second insulation sleeve (2) is 2-5mm.
7. cable insulation material according to claim 6, wherein, with the area in the footpath section of first insulation sleeve (1)
On the basis of, the area in the footpath section of second insulation sleeve (2) accounts for 60-70%.
8. a kind of preparation method of the cable insulation material in 1-7 according to claim described in any one, it is characterised in that institute
Stating preparation method includes：
1) preparation of insulation sleeve：By alkyd resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin and acetic acid
First time mixing is carried out after ethyl ester mixing, the temperature of mixing is 50-70 DEG C for the first time, the time of mixing is 20- for the first time
40min；
Mixing for the first time sequentially adds high clay, glass fibre, curing agent and plasticizer and carries out second of mixing, second after terminating
The temperature of secondary mixing is 100-110 DEG C, and the time of second mixing is 15-25min, it is compressing after obtain the first insulation sleeve
And the second insulation sleeve (2) (1)；
The outer surface of first insulation sleeve (1) is subjected to hot-pressing processing so that the first insulation sleeve (1) outer surface is formed with
Multiple grooves；
2) preparation of abrasion resistant particles：Schmigel, zirconium oxide, silica, diatomite, nitrile rubber powder and F826 adhesives are mixed
The thermoforming at 70-80 DEG C afterwards, obtains abrasion resistant particles (6)；
3) preparation of heat conducting pipe：Obtained after polyisoprene, paraffin, aluminum oxide and coupling agent KH550 are mixed after extrusion forming
To heat conducting pipe (3)；
4) the obtained heat conducting pipe (3) is placed in first insulation sleeve (1), one end of thermally conductive sheet (4) is adhesive in institute
The outer wall of heat conducting pipe (3) is stated, the other end is adhesive between the inwall of first insulation sleeve (1), two adjacent thermally conductive sheets (4)
Form cavity (5)；
5) second insulation sleeve (2) is placed in the cavity (5), the outer wall of second insulation sleeve (2) is led with described
Backing (4) carries out gluing processing, and the abrasion resistant particles (6) are bonded in the groove, cable insulation material is obtained.
9. preparation method according to claim 8, wherein, the preparation method also includes entering the cable insulation material
Row drying, wherein, the temperature of drying is 50-70 DEG C, and the time of drying is 24-36h.
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| CN201710484651.6A CN107163531A (en) | 2017-06-23 | 2017-06-23 | Outdoor high-intensity composite cable insulating materials and preparation method thereof |
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| CN201710484651.6A CN107163531A (en) | 2017-06-23 | 2017-06-23 | Outdoor high-intensity composite cable insulating materials and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109524160A (en) * | 2018-10-11 | 2019-03-26 | 赵云红 | Wear-resisting, the durable type cable of one kind and its detection circuit |
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Application publication date: 20170915 |