CN112117042A - High-load heat-resistant composite cable - Google Patents
High-load heat-resistant composite cable Download PDFInfo
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- CN112117042A CN112117042A CN201910535664.0A CN201910535664A CN112117042A CN 112117042 A CN112117042 A CN 112117042A CN 201910535664 A CN201910535664 A CN 201910535664A CN 112117042 A CN112117042 A CN 112117042A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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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
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
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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
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2234—Oxides; Hydroxides of metals of lead
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The invention discloses a high-load heat-resistant composite cable which comprises a plurality of conductors and optical units, wherein the conductors and the optical units are twisted together, wrapping belts are arranged on the outer sides of the conductors and the optical units, a tearing rope is embedded in the wrapping belts, an outer sheath is arranged on the outer side of the wrapping belts, an insulating sheath is arranged on the outer side of the conductors, an optical unit sheath is arranged on the outer side of the optical units, and the optical unit sheath comprises the following materials in parts by weight: 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low-density polyethylene, 10-20 parts of ethylene propylene diene monomer, 1-2.5 parts of vinyltriethoxysilane, 1-2 parts of didodecyl thiodipropionate, 0.5-2 parts of silicone master batch, 2-5 parts of lead oxide powder, 3-6 parts of ethoxylated trimethylolpropane triacrylate, 1-3 parts of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5-1.5 parts of diphenylguanidine and 1-2 parts of sodium dodecyl sulfate. The optical unit sheath in the high-load heat-resistant composite cable can isolate external high temperature.
Description
Technical Field
The invention relates to a composite cable, in particular to a high-load heat-resistant composite cable.
Background
An Optical Fiber Composite Low-voltage Cable (OPLC) is a Composite Cable which combines an Optical unit in a Low-voltage power Cable, can transmit power information and Optical communication, and is suitable for Low-voltage distribution network engineering. The OPLC is one of important cable products in the construction of the smart power grid, integrates the functions of electric power and communication, reduces the cost of network construction, and is one of the 'multi-network integration' products with the highest cost performance at present. The maximum temperature of the OPLC conductor does not exceed 90 ℃ in normal operation, but can reach 250 ℃ in short-time (the maximum temperature lasts for 5 s) in short circuit. The optical unit located at one side of the conductor is inevitably damaged under high temperature conditions, affecting signal transmission. Therefore, it is an effort for those skilled in the art to provide a light unit sheath that can insulate heat for a short period of time under high temperature conditions.
Disclosure of Invention
The invention aims to provide a high-load heat-resistant composite cable, wherein an optical unit sheath in the high-load heat-resistant composite cable can isolate external high temperature, protect communication materials in an optical unit, avoid the damage of the optical unit and effectively ensure the transmission stability of signals.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a heat-resisting composite cable of high load, includes a plurality of conductors and optical unit, the conductor is in the same place with the optical unit transposition, the conductor is equipped with the band with the optical unit outside, it tears the rope to inlay in the band, the band outside is equipped with the oversheath, the conductor outside is equipped with insulating sheath, the optical unit outside is equipped with the optical unit sheath, the optical unit sheath includes the material of following part by weight:
60-80 parts of ethylene-vinyl acetate copolymer,
10 to 20 parts of linear low-density polyethylene,
10-20 parts of ethylene propylene diene monomer,
1-2.5 parts of vinyl triethoxysilane,
1-2 parts of didodecyl thiodipropionate,
0.5 to 2 parts of silicone master batch,
2-5 parts of lead oxide powder,
3-6 parts of ethoxylated trimethylolpropane triacrylate,
1 to 3 parts of N, N, N ', N' -tetra [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate,
0.5 to 1.5 parts of diphenyl guanidine,
1-2 parts of sodium dodecyl sulfate,
0.5-1 part of dispersing agent.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the above scheme, the vinyl acetate of the ethylene-vinyl acetate copolymer accounts for 40% of the total weight of the ethylene-vinyl acetate copolymer.
2. In the above scheme, the ethylene propylene diene monomer is a terpolymer of ethylene, propylene and non-conjugated diene, wherein the ratio of ethylene to propylene is 80: 20.
3. in the above scheme, the conductors are provided with 4 conductors arranged in a circle, and the light units are located outside the circle.
The second scheme adopted by the invention is as follows: a preparation method of a high-load heat-resistant composite cable is provided, wherein an optical unit sheath in the high-load heat-resistant composite cable is obtained through the following steps:
s1, adding 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low-density polyethylene and 10-20 parts of ethylene propylene diene monomer into an internal mixer, and mixing for 5-10min at 60-80 ℃ to obtain a material A;
s2, adding 1-2.5 parts of vinyltriethoxysilane, 1-2 parts of didodecyl thiodipropionate, 0.5-2 parts of silicone master batch, 2-5 parts of lead oxide powder, 3-6 parts of ethoxylated trimethylolpropane triacrylate, 1-3 parts of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5-1.5 parts of diphenylguanidine, 1-2 parts of sodium dodecyl sulfate and 0.5-1 part of dispersing agent into an internal mixer, and mixing for 1-5 min at 70-90 ℃ to obtain a material B;
s3, mixing the material A, B, and discharging the mixture to an open mill;
s4, wrapping the material A, B on an open mill for 3-4 times, controlling the roll temperature of the open mill at 60 ℃, and finally, discharging the material on a calender to obtain the optical unit sheath.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention relates to a high-load heat-resistant composite cable, which is characterized in that 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low-density polyethylene, 10-20 parts of ethylene propylene diene monomer, 1-2.5 parts of vinyl triethoxysilane, 1-2 parts of didodecyl thiodipropionate, 0.5-2 parts of silicone master batch, 2-5 parts of lead oxide powder and 3-6 parts of ethoxylated trimethylolpropane triacrylate are further added with 1-3 parts of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, so that the heat conductivity coefficient of a sheath is less than or equal to 0.05W/(m.K), the sheath has heat-insulating property, an internal optical unit can be protected from external temperature, and the service life of the optical unit is prolonged.
2. According to the high-load heat-resistant composite cable, 1-2 parts of sodium dodecyl sulfate and 0.5-1.5 parts of diphenylguanidine are further added in the formula, so that the heat shrinkage of the sheath is improved, the heat shrinkage of the sheath is reduced to be less than or equal to 1%, the sheath cannot deform greatly when receiving heat generated by a conductor, and the high-load heat-resistant composite cable also has a protection effect on an internal optical unit.
Drawings
Fig. 1 is a schematic structural view of a high-load heat-resistant composite cable according to the present invention.
1. An outer sheath; 2. an insulating sheath; 3. a conductor; 4. tearing the rope; 5. a light unit; 6. wrapping belts; 7. a light unit sheath.
Detailed Description
The invention is further described below with reference to the following examples:
examples 1 to 4: a high-load heat-resistant composite cable comprises a plurality of conductors 3 and optical units 5, wherein the conductors 3 and the optical units 5 are twisted together, wrapping belts 6 are arranged on the outer sides of the conductors 3 and the optical units 5, a tearing rope 4 is embedded in the wrapping belts 6, an outer sheath 1 is arranged on the outer side of the wrapping belts 6, an insulating sheath 2 is arranged on the outer side of the conductors 3, and an optical unit sheath 7 is arranged on the outer side of the optical units 5;
the optical unit sheaths 7 of the above examples 1 to 4 are composed of the following components, as shown in table 1:
TABLE 1
| Components | Example 1 | Example 2 | Example 3 | Example 4 |
| Ethylene-vinyl acetate copolymer | 72 | 65 | 60 | 80 |
| Linear low density polyethylene | 16 | 10 | 15 | 18 |
| Ethylene propylene diene monomer | 12 | 20 | 10 | 16 |
| Vinyl triethoxy silane | 1 | 2.5 | 1.8 | 2 |
| Didodecyl thiodipropionate | 1.5 | 2 | 1 | 1.6 |
| Silicone masterbatch | 1.6 | 0.5 | 1.0 | 2 |
| Lead oxide powder | 3.5 | 5 | 4.2 | 2 |
| Ethoxylated trimethylolpropane triacrylate | 4 | 3 | 4.8 | 5.5 |
| N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl]-1, 4-phenylenediamine hexafluoroantimonate | 1.2 | 3 | 1 | 1.6 |
| Diphenylguanidine | 0.8 | 1.5 | 0.5 | 1.1 |
| Sodium dodecyl sulfate | 1 | 2 | 1.8 | 1.3 |
| Dispersing agent | 0.6 | 0.8 | 0.5 | 1 |
The vinyl acetate of the ethylene-vinyl acetate copolymer accounts for 40 percent of the total weight of the ethylene-vinyl acetate copolymer; the ethylene propylene diene monomer is a terpolymer of ethylene, propylene and non-conjugated diene, wherein the ratio of ethylene to propylene is 80: 20.
the high-load heat-resistant composite cable is prepared by the following steps:
s1, adding 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low-density polyethylene and 10-20 parts of ethylene propylene diene monomer into an internal mixer, and mixing for 5-10min at 60-80 ℃ to obtain a material A;
s2, adding 1-2.5 parts of vinyltriethoxysilane, 1-2 parts of didodecyl thiodipropionate, 0.5-2 parts of silicone master batch, 2-5 parts of lead oxide powder, 3-6 parts of ethoxylated trimethylolpropane triacrylate, 1-3 parts of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5-1.5 parts of diphenylguanidine, 1-2 parts of sodium dodecyl sulfate and 0.5-1 part of dispersing agent into an internal mixer, and mixing for 1-5 min at 70-90 ℃ to obtain a material B;
s3, mixing the material A, B, and discharging the mixture to an open mill;
s4, wrapping the material A, B on an open mill for 3-4 times, controlling the roll temperature of the open mill at 60 ℃, and finally, discharging the material on a calender to obtain the optical unit sheath material.
Comparative examples 1 to 3: a sheath comprises the following materials in parts by weight:
TABLE 2
| Components | Comparative example 1 | Comparative example 2 |
| Ethylene-vinyl acetate copolymer | 65 | 75 |
| Linear low density polyethylene | 13 | 18 |
| Ethylene propylene diene monomer | 18 | 15 |
| Vinyl triethoxy silane | 2.2 | 1.8 |
| Didodecyl thiodipropionate | 1.5 | 1.2 |
| Silicone masterbatch | 0.8 | 1.6 |
| Lead oxide powder | 4.5 | 4.6 |
| Ethoxylated trimethylolpropane triacrylate | 4.5 | 3 |
| N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl]-1, 4-phenylenediamine hexafluoroantimonate | - | 2 |
| Diphenylguanidine | 1.2 | - |
| Sodium dodecyl sulfate | 1.5 | - |
| Dispersing agent | 0.6 | 0.8 |
The preparation method is a common method.
The performance test data of the films prepared in the examples and comparative examples are as follows:
TABLE 3
As shown in table 3, in comparative example 1, which lacks the component N, N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate as compared with examples 01 to 4, the thermal conductivity of the sheath prepared in comparative example 1 is much larger than that of the optical unit sheaths prepared in examples 1 to 4, i.e., the sheath prepared in comparative example has poor heat insulating properties;
comparative example 2 in the absence of the components sodium lauryl sulfate and diphenylguanidine as compared to examples 1-4, the heat shrinkage of the jacket made in comparative example 2 was greater than the heat shrinkage of the optical unit jacket made in examples 1-4, i.e., the jacket made in comparative example was inferior in heat shrinkage performance.
The optical unit sheath prepared in each embodiment of the invention has better thermal shrinkage and thermal conductivity than the optical unit sheath of the comparative example, and the optical unit sheath prepared in the invention can isolate external high temperature, protect communication materials in the optical unit and avoid the damage of the optical unit when being used for protecting the optical unit.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. A high-load heat-resistant composite cable is characterized in that: including a plurality of conductors (3) and light unit (5), conductor (3) and light unit (5) transposition are in the same place, conductor (3) and light unit (5) outside are equipped with band (6), it tears rope (4) to inlay in band (6), the band (6) outside is equipped with oversheath (1), the conductor (3) outside is equipped with insulating sheath (2), light unit (5) outside is equipped with light unit sheath (7), light unit sheath (7) include the material of following part by weight:
60-80 parts of ethylene-vinyl acetate copolymer,
10 to 20 parts of linear low-density polyethylene,
10-20 parts of ethylene propylene diene monomer,
1-2.5 parts of vinyl triethoxysilane,
1-2 parts of didodecyl thiodipropionate,
0.5 to 2 parts of silicone master batch,
2-5 parts of lead oxide powder,
3-6 parts of ethoxylated trimethylolpropane triacrylate,
1 to 3 parts of N, N, N ', N' -tetra [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate,
0.5 to 1.5 parts of diphenyl guanidine,
1-2 parts of sodium dodecyl sulfate,
0.5-1 part of dispersing agent.
2. A high load, heat resistant composite cable according to claim 1, wherein: the vinyl acetate of the ethylene-vinyl acetate copolymer accounts for 40 percent of the total weight of the ethylene-vinyl acetate copolymer.
3. A high load, heat resistant composite cable according to claim 1, wherein: the ethylene propylene diene monomer is a terpolymer of ethylene, propylene and non-conjugated diene, wherein the ratio of ethylene to propylene is 80: 20.
4. a high load, heat resistant composite cable according to claim 1, wherein: the conductors (3) are provided with 4 conductors which are arranged in a circle, and the light units (5) are positioned outside the circle.
5. A method for preparing a high-load heat-resistant composite cable according to claim 1, wherein the method comprises the following steps: the light unit sheath (7) in the high-load heat-resistant composite cable is obtained by the following steps:
s1, adding 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low-density polyethylene and 10-20 parts of ethylene propylene diene monomer into an internal mixer, and mixing for 5-10min at 60-80 ℃ to obtain a material A;
s2, adding 1-2.5 parts of vinyltriethoxysilane, 1-2 parts of didodecyl thiodipropionate, 0.5-2 parts of silicone master batch, 2-5 parts of lead oxide powder, 3-6 parts of ethoxylated trimethylolpropane triacrylate, 1-3 parts of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5-1.5 parts of diphenylguanidine, 1-2 parts of sodium dodecyl sulfate and 0.5-1 part of dispersing agent into an internal mixer, and mixing for 1-5 min at 70-90 ℃ to obtain a material B;
s3, mixing the material A, B, and discharging the mixture to an open mill;
s4, wrapping the material A, B on an open mill for 3-4 times, controlling the roll temperature of the open mill at 60 ℃, and finally, discharging the material on a calender to obtain the optical unit sheath.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418821.3A CN114242318A (en) | 2019-06-20 | 2019-06-20 | Heat insulation composite cable |
| CN202111473616.7A CN114276609B (en) | 2019-06-20 | 2019-06-20 | Preparation process of fire-resistant safety cable |
| CN202111418955.5A CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
| CN201910535664.0A CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535664.0A CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111473616.7A Division CN114276609B (en) | 2019-06-20 | 2019-06-20 | Preparation process of fire-resistant safety cable |
| CN202111418821.3A Division CN114242318A (en) | 2019-06-20 | 2019-06-20 | Heat insulation composite cable |
| CN202111418955.5A Division CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
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| Publication Number | Publication Date |
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| CN112117042A true CN112117042A (en) | 2020-12-22 |
| CN112117042B CN112117042B (en) | 2021-10-29 |
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| CN202111473616.7A Active CN114276609B (en) | 2019-06-20 | 2019-06-20 | Preparation process of fire-resistant safety cable |
| CN202111418955.5A Active CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
| CN202111418821.3A Pending CN114242318A (en) | 2019-06-20 | 2019-06-20 | Heat insulation composite cable |
| CN201910535664.0A Active CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
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| CN202111418955.5A Active CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
| CN202111418821.3A Pending CN114242318A (en) | 2019-06-20 | 2019-06-20 | Heat insulation composite cable |
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2019
- 2019-06-20 CN CN202111473616.7A patent/CN114276609B/en active Active
- 2019-06-20 CN CN202111418955.5A patent/CN114141430B/en active Active
- 2019-06-20 CN CN202111418821.3A patent/CN114242318A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114141430B (en) | 2024-07-19 |
| CN114242318A (en) | 2022-03-25 |
| CN114141430A (en) | 2022-03-04 |
| CN114276609A (en) | 2022-04-05 |
| CN114276609B (en) | 2023-02-28 |
| CN112117042B (en) | 2021-10-29 |
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Denomination of invention: High Load Heat Resistant Composite Cable Effective date of registration: 20220811 Granted publication date: 20211029 Pledgee: China Construction Bank Corporation Limited Wuxiang Sub-branch in Nanning Area, Guangxi Pilot Free Trade Zone Pledgor: GUANGXI ZONGLAN CABLE GROUP CO.,LTD. Registration number: Y2022450000132 |
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