CN107163530A - Low temperature resistant composite cable insulating materials in field and preparation method thereof - Google Patents
Low temperature resistant composite cable insulating materials in field and preparation method thereof Download PDFInfo
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- CN107163530A CN107163530A CN201710484650.1A CN201710484650A CN107163530A CN 107163530 A CN107163530 A CN 107163530A CN 201710484650 A CN201710484650 A CN 201710484650A CN 107163530 A CN107163530 A CN 107163530A
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/08—Polyesters modified with higher fatty oils or their acids, or with resins or resin acids
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/14—Homopolymers or copolymers of vinyl fluoride
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08L2203/18—Applications used for pipes
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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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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses low temperature resistant composite cable insulating materials in a kind of field 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；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 low temperature resistant composite cable insulating materials in field 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 low temperature resistant composite cable insulating materials in a kind of field 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 low temperature resistant composite cable insulating materials in field, 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；
Constituting the raw material of the heat conducting pipe at least includes：Polyvinylidene, paraffin, alundum (Al2O3) 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, diatomite, polyethylene fibre, solidification
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 diatomite, polyethylene fibre, curing agent and plasticizer and mix for the second time after terminating
Refining, 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 first
Insulation sleeve and the second insulation sleeve；
2) preparation of heat conducting pipe：Through being squeezed into after Polyvinylidene, paraffin, alundum (Al2O3) and coupling agent KH550 are mixed
Heat conducting pipe is obtained after type；
3) 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；
4) 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, obtains cable insulation material.
By above-mentioned technical proposal, the invention provides a kind of low temperature resistant composite cable insulating materials in field, 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；This
The first insulation sleeve, the second insulation sleeve and the heat conducting pipe invented in the cable insulation material provided possess excellent heat conductivility, electricity
The core of cable is arranged in the second insulation sleeve, and the heat that core is produced can be conducted to the first insulation sleeve by thermally conductive sheet, and
Distribute to the external world, thermally conductive sheet can also produce good supporting role so that formed between the second insulation sleeve and the first insulation sleeve
Cavity, beneficial to the circulation of sheath internal heat, scattering and disappearing for accelerated heat further, heat conducting pipe is provided with the first insulation sleeve,
The heat that core is produced can be evenly distributed on thermally conductive sheet by heat conducting pipe, prevent core from locally producing high temperature and being produced to sheath
Damage；Present invention also offers a kind of preparation method of cable insulation material, the preparation method is simple, and raw material is easy to get so that system
The sheath heat-sinking capability and mechanical performance obtained is more 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- cavitys
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 low temperature resistant composite cable insulating materials in field, 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；
Constituting the raw material of the heat conducting pipe 3 at least includes：Polyvinylidene, paraffin, alundum (Al2O3) 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
It is resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin, ethyl acetate, diatomite, polyethylene fibre, solid
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 as to improve its ability, relative to the Polyvinylidene of 100 parts by weight, the paraffin
Consumption is 15-25 parts by weight, and the consumption of the alundum (Al2O3) is 5-12 parts by weight, and the consumption of the coupling agent KH550 is 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 diatomaceous consumption is 2-10 weight
Part, the consumption of the polyethylene fibre is 2-10 parts by weight, and the consumption of the curing agent is 2-5 parts by weight, the plasticizer
Consumption is 2-5 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 ability, the curing agent is diethylenetriamine and/or m-xylene diamine.
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 ability, the plasticizer is that dioctyl phthalate, tri trimellitate are pungent
One or more in ester 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 diatomite, polyethylene fibre, curing agent and plasticizer and mix for the second time after terminating
Refining, 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 first
The insulation sleeve 2 of insulation sleeve 1 and second；
2) preparation of heat conducting pipe：Through being squeezed into after Polyvinylidene, paraffin, alundum (Al2O3) and coupling agent KH550 are mixed
Heat conducting pipe 3 is obtained after type；
3) 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；
4) 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, obtains cable insulation material.
The present invention it is a kind of preferred embodiment in, in order that being capable of strong bond, the system between each part
Preparation Method also includes being dried the cable insulation material, wherein, the temperature of drying is 50-70 DEG C, and the time of drying is
24-36h。
The present invention will be described in detail by way of examples below.In following examples, the Weight-average molecular of Polyvinylidene
Measure as 4000-6000, 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；For the first time mixing terminate after sequentially add 2g diatomite, 2g polyethylene fibres, 2g diethylenetriamines and
2g dioctyl phthalates carry 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；
2) preparation of heat conducting pipe：100g Polyvinylidenes, 15g paraffin, 5g alundum (Al2O3)s and 2g coupling agents KH550 are mixed
By obtaining heat conducting pipe 3 after extrusion forming；
3) 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；
4) 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, obtains base substrate, and base substrate dried to (temperature of drying is 50-70 DEG C, and the time of drying is 24-
36h) obtain cable insulation material A1；Wherein thermally conductive sheet 4 is copper sheet, and the thickness of obtained first insulation sleeve 1 is 5mm, described the
The thickness of two insulation sleeves 2 is 2mm, and the quantity of the second insulation sleeve 2 is 4, and the area using the footpath section of the first insulation sleeve 1 is base
Standard, 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 10g diatomite, 10g polyethylene fibres, 5g isophthalic two after terminating for the first time
Methylamine and 5g trioctyl trimellitate (TOTM)s carry out second and kneaded, and the temperature of second of mixing is 110 DEG C, the time of second of mixing
For 25min, it is compressing after obtain the first insulation sleeve 1 and the second insulation sleeve 2；
2) preparation of heat conducting pipe：100g Polyvinylidenes, 25g paraffin, 12g alundum (Al2O3)s and 8g coupling agents KH550 are mixed
Heat conducting pipe 3 is obtained after conjunction after extrusion forming；
3) 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；
4) 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, obtains base substrate, and base substrate is dried into (temperature of drying is 70 DEG C, and the time of drying is 36h) obtains
Cable insulation material A2；Wherein thermally conductive sheet 4 is aluminium flake, and the thickness of obtained first insulation sleeve 1 is 8mm, second insulation sleeve 2
Thickness be 8mm, the quantity of the second insulation sleeve 2 is 4, on the basis of the area in the footpath section of the first insulation sleeve 1, the second insulation
The gross area in the footpath section of set 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；Mixing sequentially adds 5g diatomite, 6g polyethylene fibres, 3g m-xylene diamines after terminating for the first time
Second is carried out with the acid esters of 3g epoxy glycerites three to knead, the temperature of second of mixing is 105 DEG C, the time of second of mixing is
20min, it is compressing after obtain the first insulation sleeve 1 and the second insulation sleeve 2；
2) preparation of heat conducting pipe：100g Polyvinylidenes, 20g paraffin, 8g alundum (Al2O3)s and 5g coupling agents KH550 are mixed
By obtaining heat conducting pipe 3 after extrusion forming；
3) 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；
4) 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, obtains base substrate, and base substrate is dried into (temperature of drying is 60 DEG C, and the time of drying is 30h) obtains
Cable insulation material A3；Wherein thermally conductive sheet 4 is aluminium flake, and the thickness of obtained first insulation sleeve 1 is 6mm, second insulation sleeve 2
Thickness be 3mm, the quantity of the second insulation sleeve 2 is 4, on the basis of the area in the footpath section of the first insulation sleeve 1, the second insulation
The gross area in the footpath section of set 2 accounts for 65%.
Comparative example 1
Carried out according to the method for embodiment 3, unlike, the Polyvinylidene relative to 100g, the use of the paraffin
Measure as 10g, the consumption of the alundum (Al2O3) is 3g, and the consumption of the coupling agent KH550 is 1g；The alcohol relative to 100g
Acid resin, the consumption of the epoxy resin is 15g, and the consumption of the cresols is 3g, the consumption of the butanol etherification amino resins
For 20g, the consumption of the acrylic resin is 3g, and the consumption of the ethyl acetate is 30g, and the diatomaceous consumption is 1g,
The consumption of the polyethylene 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；Obtain cable insulation material D1.
Comparative example 2
Carried out according to the method for embodiment 3, unlike, the Polyvinylidene relative to 100g, the use of the paraffin
Measure as 30g, the consumption of the alundum (Al2O3) is 15g, and the consumption of the coupling agent KH550 is 10g；Relative to described in 100g
Alkyd resin, the consumption of the epoxy resin is 45g, and the consumption of the cresols is 15g, the use of the butanol etherification amino resins
Measure as 50g, the consumption of the acrylic resin is 25g, and the consumption of the ethyl acetate is 65g, and the diatomaceous consumption is
12g, the consumption of the polyethylene fibre is 12g, and the consumption of the m-xylene diamine is 7g, the use of the acid esters of epoxy glycerite three
Measure as 7g；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.
Table 1
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, therefore also possess excellent ability, and outside the scope of the invention obtained sheath D1-D4, its is each
Aspect performance is relatively 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 low temperature resistant composite cable insulating materials in field, 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；
Constituting the raw material of the heat conducting pipe (3) at least includes：Polyvinylidene, paraffin, alundum (Al2O3) 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
It is resin, epoxy resin, cresols, butanol etherification amino resins, acrylic resin, ethyl acetate, diatomite, polyethylene fibre, solid
Agent and plasticizer.
2. cable insulation material according to claim 1, wherein, it is described relative to the Polyvinylidene of 100 parts by weight
The consumption of paraffin is 15-25 parts by weight, and the consumption of the alundum (Al2O3) is 5-12 parts by weight, the use of the coupling agent KH550
Measure as 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 diatomaceous consumption is 2-10 parts by weight, institute
The consumption for stating polyethylene 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.
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 diatomite, polyethylene fibre, curing agent and plasticizer and carries out second of mixing after terminating, the
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)；
2) preparation of heat conducting pipe：After Polyvinylidene, paraffin, alundum (Al2O3) and coupling agent KH550 are mixed after extrusion forming
Obtain heat conducting pipe (3)；
3) 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)；
4) 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, obtains cable insulation material.
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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| CN201710484650.1A CN107163530A (en) | 2017-06-23 | 2017-06-23 | Low temperature resistant composite cable insulating materials in field and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20170915 |