CN105086083A - Insulating material for cables - Google Patents
Insulating material for cables Download PDFInfo
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- CN105086083A CN105086083A CN201510549066.0A CN201510549066A CN105086083A CN 105086083 A CN105086083 A CN 105086083A CN 201510549066 A CN201510549066 A CN 201510549066A CN 105086083 A CN105086083 A CN 105086083A
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- Prior art keywords
- insulating material
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- cable insulating
- material according
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
-
- 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
- C08L2205/24—Crystallisation aids
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an insulating material for cables. According to percentages by weight, the components of the insulating material for the cables include: 45 to 80 percent of polyethylene, 1 to 10 percent of polyethylene glycol, 10 to 20 percent of plasticizer, 10 to 20 percent of filler, 1 to 10 percent of modifier, 0.1 to 0.4 percent of colorant, 0.2 to 1 percent of antioxidant, 2 to 5 percent of stabilizer and 0.5 to 1.5 percent of lubricant. The insulating material for the cables is also added with metallocene polymer, the metallocene polymer and the polyethylene glycol have synergy in terms of water tree retardance, the service life of the insulating material for the cables is long, reaching more than 40 years, moreover, the water tree length is reduced by 50 percent in comparison with the water tree length of ordinary cable materials, the insulating material for the cables has excellent insulating property, and the toughness is also increased to a certain degree.
Description
Technical field
The present invention relates to a kind of insulating material, particularly a kind of cable insulating material.
Background technology
Cable insulation " water treeization " refers in the middle of cable runs, and has signs of degradation to produce, and water tree causes because the solid insulation material be exposed in water damages, and tree is formed in high stress areas water.Water tree has following characteristics: the existence of (1) water is the precursor that water tree produces; (2) in the middle of water tree growth, local current can not be detected normally; (3) water tree is reaching before certain size also finally causes puncture of cable and can grow several years; (4) need certain electric field action just can produce.Along with crosslinked polyethylene water tree phenomenon research further deeply, find that water tree causes that twisted polyethylene cable is aging to be punctured thus reduce the major reason in work-ing life.
In addition, polyethylene insulation material serves the effect that a water tree suppresses, when linking agent residue serves the effect that water sets inhibitor at hank of cable after process in one period.But these residues finally can fade away under the condition of cable use temperature.
At present, the various measure of the many employings of people solves the problem of water tree in insulating material, comprises the method for interpolation PEG to improve water tree resistant property.Although but various technology before have certain effect in water resistant tree, the processing characteristics of insulating material and heat aging performance and precipitation problem are affected.Different additives is added in order to obtain the various performance of cable again during production, and the impact that interacts before additive, be difficult between various performance, reach a kind of suitable balance.So how making each additive balance and eliminating water tree is a crucial problem needing to solve.
Summary of the invention
The object of the present invention is to provide a kind of cable insulating material, cable insulating material can be made can to have longer work-ing life and stronger water tree resistant property.
For reaching this object, the present invention adopts following technical scheme:
On the one hand, the invention provides a kind of cable insulating material, its compositions in weight percentage comprises:
Preferably, described polyethylene is 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, 70%, 75% or 80%.
Preferably, described polyoxyethylene glycol is 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%.
Preferably, described softening agent is 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20%.
Preferably, described weighting agent is 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20%.
Preferably, described properties-correcting agent is 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%.
Preferably, described tinting material is 0.1%, 0.2%, 0.3% or 0.4%.
Preferably, described oxidation inhibitor is 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% or 1%.
Preferably, described stablizer is 2%, 2.5%, 3%, 3.5%, 4%%, 4.5% or 5%.
Preferably, described lubricant is 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4% or 1.5%.
Preferably, each compositions in weight percentage of described insulating material comprises:
As optimal technical scheme, described insulating material also comprises metallocene polymers, because metallocene polymers taxis is higher, be easy to form the spherocrystal comparatively disperseed, crystallization velocity is fast, and grain-size is less, after interpolation, improve the growth velocity of poly nucleation rate and crystal, decrease the size of crystal grain, thus substantially increase the degree of crystallinity of material and the elasticity of material.
Preferably, described metallocene polymers is any one or at least two kinds of combinations in metallocene PE (MPE) or Metallocene elastomer (POE).
Preferably, the weight percent of described metallocene polymers in insulating material is 5-10%, can be such as 5%, 6%, 7%, 8%, 9% or 10%.
Preferably, the molecular weight of described polyoxyethylene glycol is 3500-50000, such as, can be 35000,36000,4000,5000,6000,7000,8000,9000,10000,11000,12000,13000,15000,18000,20000,21000,25000,26000,28000,30000,40000,45000 or 50000.
Preferably, described oxidation inhibitor comprises primary antioxidant and auxiliary antioxidant.
Preferably, described primary antioxidant is any one or at least two kinds of combinations in antioxidant 300, antioxidant 1010, oxidation inhibitor 1024 or oxidation inhibitor 697;
Preferably, described auxiliary antioxidant is any one or at least two kinds of combinations in oxidation inhibitor 802, irgasfos 168 or DLTP.
Preferably, described softening agent is any one or at least two kinds of combinations in dioctyl terephthalate or dibutyl phthalate.
Preferably, described stablizer is calcium-zinc composite stabilizing agent.
Preferably, described lubricant is any one or at least two kinds of combinations in stearic acid, Chinese wax or montanin wax.
Compared with prior art, the present invention has following beneficial effect:
Cable insulating material provided by the invention, by adding hydroaropic substance, improves the interaction of polymkeric substance and water, by adding nucleator, improves the toughness of material while improving material crystalline degree.Cable insulating material long service life, can reach more than 40 years, and water tree length reduces 50% than common cable material, there are good insulating property, meet the requirement of market to insulating material, and manufacture craft is comparatively simple, is also easy to suitability for industrialized production and popularization.
Embodiment
For further setting forth the technique means and effect thereof that the present invention takes, further illustrate technical scheme of the present invention below in conjunction with the preferred embodiments of the present invention, but the present invention is not confined in scope of embodiments.
Embodiment 1
A kind of cable insulating material, its compositions in weight percentage comprises following component:
Above raw material is mixed, then by dual-screw-stem machine forcing machine extruding pelletization, obtains described cable insulating material.
Embodiment 2
A kind of cable insulating material, its compositions in weight percentage comprises following component:
Above raw material is mixed, then by dual-screw-stem machine forcing machine extruding pelletization, obtains described cable insulating material.
Embodiment 3
A kind of cable insulating material, its compositions in weight percentage comprises following component:
Above raw material is mixed, then by dual-screw-stem machine forcing machine extruding pelletization, obtains described cable insulating material.
Comparative example 1
Adopt Conventional insulation cable material, its formula is:
Above raw material is mixed, then by dual-screw-stem machine forcing machine extruding pelletization, obtains described cable insulating material.
Test data is as shown in table 1,
Table 1
In sum, cable insulating material provided by the invention, by adding PEG hydroaropic substance, improves the interaction of polymkeric substance and water, by adding nucleator, improves the toughness of material while improving material crystalline degree.Use insulating material long service life, more than 40 years can be reached, and water tree length reduces 50% than common cable material, have good insulating property, meet the requirement of market to insulating material, and manufacture craft is comparatively simple, is also easy to suitability for industrialized production and popularization.
Applicant states, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not namely mean that the present invention must rely on above-mentioned method detailed and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (9)
1. a cable insulating material, is characterized in that, its compositions in weight percentage comprises:
2. cable insulating material according to claim 1, is characterized in that, its compositions in weight percentage comprises:
3. cable insulating material according to claim 1 and 2, is characterized in that, described insulating material also comprises metallocene polymers;
Preferably, described metallocene polymers is any one or at least two kinds of combinations in metallocene PE or Metallocene elastomer;
Preferably, the weight percent of described metallocene polymers in insulating material is 5-10%.
4. the cable insulating material according to any one of claim 1-3, is characterized in that, the molecular weight of described polyoxyethylene glycol is 3500-50000.
5. the cable insulating material according to any one of claim 1-4, is characterized in that, described oxidation inhibitor comprises primary antioxidant and auxiliary antioxidant.
6. cable insulating material according to claim 5, is characterized in that, described primary antioxidant is any one or at least two kinds of combinations in antioxidant 300, antioxidant 1010, oxidation inhibitor 1024 or oxidation inhibitor 697;
Preferably, described auxiliary antioxidant is any one or at least two kinds of combinations in oxidation inhibitor 802, irgasfos 168 or DLTP.
7. the cable insulating material according to any one of claim 1-6, is characterized in that, described softening agent is any one or at least two kinds of combinations in dioctyl terephthalate or dibutyl phthalate.
8. the cable insulating material according to any one of claim 1-7, is characterized in that, described stablizer is calcium-zinc composite stabilizing agent.
9. the cable insulating material according to any one of claim 1-8, is characterized in that, described lubricant is any one or at least two kinds of combinations in stearic acid, Chinese wax or montanin wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549066.0A CN105086083A (en) | 2015-08-31 | 2015-08-31 | Insulating material for cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549066.0A CN105086083A (en) | 2015-08-31 | 2015-08-31 | Insulating material for cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105086083A true CN105086083A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510549066.0A Pending CN105086083A (en) | 2015-08-31 | 2015-08-31 | Insulating material for cables |
Country Status (1)
| Country | Link |
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| CN (1) | CN105086083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917637A (en) * | 2021-10-26 | 2022-01-11 | 长飞光纤光缆股份有限公司 | All-dielectric optical cable and laying method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149994A (en) * | 2007-10-29 | 2008-03-26 | 浙江万马高分子材料股份有限公司 | Water-tree-retardant cable insulation material |
| CN101529533A (en) * | 2006-10-27 | 2009-09-09 | 北方科技有限公司 | Flexible power cable with improved water treeing resistance |
-
2015
- 2015-08-31 CN CN201510549066.0A patent/CN105086083A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101529533A (en) * | 2006-10-27 | 2009-09-09 | 北方科技有限公司 | Flexible power cable with improved water treeing resistance |
| CN101149994A (en) * | 2007-10-29 | 2008-03-26 | 浙江万马高分子材料股份有限公司 | Water-tree-retardant cable insulation material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917637A (en) * | 2021-10-26 | 2022-01-11 | 长飞光纤光缆股份有限公司 | All-dielectric optical cable and laying method thereof |
| CN113917637B (en) * | 2021-10-26 | 2022-11-18 | 长飞光纤光缆股份有限公司 | All-dielectric optical cable and laying method thereof |
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Application publication date: 20151125 |