CN114141430B - Manufacturing process of low-shrinkage composite cable - Google Patents
Manufacturing process of low-shrinkage composite cable Download PDFInfo
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- CN114141430B CN114141430B CN202111418955.5A CN202111418955A CN114141430B CN 114141430 B CN114141430 B CN 114141430B CN 202111418955 A CN202111418955 A CN 202111418955A CN 114141430 B CN114141430 B CN 114141430B
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- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 12
- -1 N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate Chemical compound 0.000 claims abstract description 11
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 9
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims abstract description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 7
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 6
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000464 lead oxide Inorganic materials 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 6
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000002270 dispersing agent Substances 0.000 claims abstract description 5
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001993 dienes Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 16
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 4
- ODJQKYXPKWQWNK-UHFFFAOYSA-L 3-(2-carboxylatoethylsulfanyl)propanoate Chemical compound [O-]C(=O)CCSCCC([O-])=O ODJQKYXPKWQWNK-UHFFFAOYSA-L 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a manufacturing process of a low-shrinkage composite cable, which comprises a plurality of conductors and optical units, wherein the conductors and the optical units are twisted together, an insulating sheath is arranged on the outer side of each conductor, and an optical unit sheath is arranged on the outer side of each optical unit; the light unit sheath is made by the steps of: step one, adding an ethylene-vinyl acetate copolymer, linear low-density polyethylene and ethylene propylene diene monomer into an internal mixer, and mixing to obtain a material A; step two, adding vinyl triethoxysilane, thiodipropionic acid didodecyl ester, silicone master batch, lead oxide powder, ethoxylated trimethylolpropane triacrylate, N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, diphenyl guanidine, sodium dodecyl sulfate and a dispersing agent into an internal mixer to obtain a material B. The low-shrinkage composite cable provided by the invention has the heat insulation performance, and can protect an internal light unit from being influenced by external temperature.
Description
Technical Field
The invention relates to a composite cable, in particular to a low-shrinkage composite cable.
Background
The optical fiber composite Cable OPLC (Optical Fiber Composite Low-voltage Cable) is a composite Cable which is used for compositing an optical unit in a low-voltage power Cable, can be used for transmitting power information and optical communication transmission, and is suitable for low-voltage distribution network engineering. OPLC is used as one of important cable products in smart grid construction, integrates the functions of power and communication, reduces the cost of network construction, and is one of the multi-network fusion products with highest cost performance at present. The traditional national standard prescribes that the highest temperature of the OPLC conductor is not higher than 90 ℃ during normal operation, but the short-time (lasting for 5s at maximum) temperature of the conductor can reach 250 ℃ during short circuit. The light units located on one side of the conductor must be damaged under high temperature conditions, affecting signal transmission. Therefore, how to provide a light unit sheath that insulates heat in a short time under high temperature conditions is a direction of effort for those skilled in the art.
Disclosure of Invention
The invention aims to provide a manufacturing process of a low-shrinkage composite cable, wherein an optical unit sheath in the low-shrinkage composite cable obtained by the manufacturing process 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 above purpose, the invention adopts the following technical scheme: the manufacturing process of the low-shrinkage composite cable comprises a plurality of conductors and light units, wherein the conductors and the light units are stranded together, a wrapping belt is arranged on the outer sides of the conductors and the light units, a tearing rope is embedded in the wrapping belt, an outer sheath is arranged on the outer side of the wrapping belt, an insulating sheath is arranged on the outer side of the conductors, and a light unit sheath is arranged on the outer side of the light units;
The light unit sheath is prepared by the following steps:
Step one, adding 60 parts of ethylene-vinyl acetate copolymer, 15 parts of linear low density polyethylene and 10 parts of ethylene propylene diene monomer into an internal mixer, and mixing for 5-10 min to obtain a material A;
Adding 1.8 parts of vinyl triethoxysilane, 1 part of thiodipropionic acid didodecyl ester, 1 part of silicone master batch, 4.2 parts of lead oxide powder, 4.8 parts of ethoxylated trimethylolpropane triacrylate, 1 part of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5 part of diphenyl guanidine, 1.8 parts of sodium dodecyl sulfate and 0.5 part of dispersing agent into an internal mixer, and mixing at 70-90 ℃ to obtain a material B;
Thirdly, mixing the materials A, B and discharging the materials to an open mill;
And fourthly, wrapping the materials A, B on an open mill for 3-4 times, controlling the roller temperature of the open mill at 60 ℃, and finally discharging sheets on a calender to obtain the light unit sheath material.
The technical scheme further improved in the technical scheme is as follows:
1. In the above scheme, the ethylene-vinyl acetate copolymer has vinyl acetate accounting for 40% of the total weight of the ethylene-vinyl acetate copolymer.
2. In the 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.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. The invention further adds N, N, N ', N' -tetra [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate into ethylene-vinyl acetate copolymer, linear low density polyethylene, ethylene propylene diene monomer, vinyl triethoxysilane, thiodipropionate bisdodecyl ester, silicone master batch, lead oxide powder and ethoxylated trimethylolpropane triacrylate, so that the heat conductivity coefficient of the sheath is less than or equal to 0.05W/(m.K), the sheath has heat insulation performance, the internal light units can be protected from the influence of external temperature, and the service life of the light units is prolonged.
2. The manufacturing process of the low-shrinkage composite cable further adds sodium dodecyl sulfate and diphenyl guanidine in the formula, improves the heat shrinkage of the sheath, reduces the heat shrinkage of the sheath to be less than or equal to 1 percent, ensures that the sheath cannot deform greatly when receiving the heat generated by a conductor, and also plays a role in protecting an internal light unit.
Detailed Description
The invention is further described below with reference to examples:
Examples: the manufacturing process of the low-shrinkage composite cable comprises a plurality of conductors and light units, wherein the conductors and the light units are stranded together, a wrapping belt is arranged on the outer sides of the conductors and the light units, a tearing rope is embedded in the wrapping belt, an outer sheath is arranged on the outer side of the wrapping belt, an insulating sheath is arranged on the outer side of the conductors, and a light unit sheath is arranged on the outer side of the light units;
The light unit sheath of the above embodiment is composed of the following components: 60 parts of ethylene-vinyl acetate copolymer, 15 parts of linear low-density polyethylene, 10 parts of ethylene propylene diene monomer, 1.8 parts of vinyl triethoxysilane, 1 part of thiodipropionate didodecyl ester, 1 part of silicone master batch, 4.2 parts of lead oxide powder, 4.8 parts of ethoxylated trimethylolpropane triacrylate, 1 part of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5 part of diphenylguanidine, 1.8 parts of sodium dodecyl sulfate and 0.5 part of dispersing agent.
The vinyl acetate of the above ethylene-vinyl acetate copolymer accounts for 40% 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 light unit sheath is prepared by the following steps:
S1, adding an ethylene-vinyl acetate copolymer, linear low density polyethylene and ethylene propylene diene monomer into an internal mixer, and mixing at 60-80 ℃ for 5-10min to obtain a material A;
S2, adding vinyl triethoxysilane, thiodipropionate didodecyl ester, silicone master batch, lead oxide powder, ethoxylated trimethylolpropane triacrylate, N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, diphenyl guanidine, sodium dodecyl sulfate and a dispersing agent into an internal mixer, and mixing for 1-5 min at 70-90 ℃ to obtain a material B;
s3, mixing the materials A, B and discharging the materials to an open mill;
and S4, wrapping the materials A, B on an open mill for 3-4 times, controlling the roller temperature of the open mill at 60 ℃, and finally discharging sheets on a calender to obtain the light unit sheath material.
Comparative examples 1 to 2: the sheath comprises the following materials in parts by weight:
TABLE 1
The preparation method is a common method.
The film properties prepared in each example and comparative example were measured as follows:
TABLE 2
As shown in table 2, comparative example 1 lacks the component N, N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate as compared with the examples, and the thermal conductivity of the sheath made of comparative example 1 is much larger than that of the sheath of the optical unit made of the examples, i.e., the thermal insulation performance of the sheath made of the comparative example is poor;
Comparative example 2 lacks the components sodium dodecyl sulfate and diphenyl guanidine as compared with example, and the heat shrinkage of the jacket prepared in comparative example 2 is greater than that of the light unit jacket prepared in example, i.e., the heat shrinkage performance of the jacket prepared in comparative example is poor.
The optical unit sheath prepared in each embodiment of the invention is superior to the optical unit sheath of the comparative example in heat shrinkage and heat conductivity, and the optical unit sheath prepared in the invention is used for protecting optical units, can isolate external high temperature, protects communication materials in the optical units, and avoids damage of the optical units.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (3)
1. A manufacturing process of a low-shrinkage composite cable is characterized by comprising the following steps of: the low-shrinkage composite cable comprises a plurality of conductors and light units, wherein the conductors and the light units are twisted together, a wrapping belt is arranged on the outer sides of the conductors and the light units, a tearing rope is embedded in the wrapping belt, an outer sheath is arranged on the outer side of the wrapping belt, an insulating sheath is arranged on the outer side of the conductors, and a light unit sheath is arranged on the outer side of the light units;
The light unit sheath is prepared by the following steps:
Step one, adding 60 parts of ethylene-vinyl acetate copolymer, 15 parts of linear low-density polyethylene and 10 parts of ethylene propylene diene monomer into an internal mixer, and mixing for 5-10 min to obtain a material A;
Step two, adding 1.8 parts of vinyl triethoxysilane, 1 part of thiodipropionic acid didodecyl ester, 1 part of silicone master batch, 4.2 parts of lead oxide powder, 4.8 parts of ethoxylated trimethylolpropane triacrylate, 1 part of N, N, N ', N' -tetrakis [4- (dibutylamino) phenyl ] -1, 4-phenylenediamine hexafluoroantimonate, 0.5 part of diphenyl guanidine, 1.8 parts of sodium dodecyl sulfate and 0.5 part of dispersing agent into an internal mixer, and mixing at 70-90 ℃ to obtain a material B;
Thirdly, mixing the materials A, B and discharging the materials to an open mill;
Fourthly, packaging the materials A, B on an open mill for 3-4 times, controlling the roller temperature of the open mill to be 60 ℃, and finally discharging sheets on a calender to obtain the light unit sheath material;
The vinyl acetate of the ethylene-vinyl acetate copolymer accounts for 40% 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.
2. The process for manufacturing a low shrinkage composite cable according to claim 1, wherein: in the first step, the mixing temperature is 60-80 ℃.
3. The process for manufacturing a low shrinkage composite cable according to claim 1, wherein: and in the second step, the mixing time is 1-5 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418955.5A CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535664.0A CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
| CN202111418955.5A CN114141430B (en) | 2019-06-20 | 2019-06-20 | Manufacturing process of low-shrinkage composite cable |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910535664.0A Division CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
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| CN114141430A CN114141430A (en) | 2022-03-04 |
| CN114141430B true CN114141430B (en) | 2024-07-19 |
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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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| CN202111473616.7A Active CN114276609B (en) | 2019-06-20 | 2019-06-20 | Preparation process of fire-resistant safety cable |
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| CN201910535664.0A Active CN112117042B (en) | 2019-06-20 | 2019-06-20 | High-load heat-resistant composite cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047285A (en) * | 2013-01-29 | 2015-11-11 | 江苏亨通电力电缆有限公司 | Manufacturing process for fireproof power cable with low conductive temperature |
| CN106566060A (en) * | 2016-09-29 | 2017-04-19 | 中广核三角洲（苏州）新材料研发有限公司 | Aging-resistant and oil-resistant nuclear power flame-retardant sheath material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112117042A (en) | 2020-12-22 |
| CN114141430A (en) | 2022-03-04 |
| CN114242318A (en) | 2022-03-25 |
| CN114276609B (en) | 2023-02-28 |
| CN114276609A (en) | 2022-04-05 |
| CN112117042B (en) | 2021-10-29 |
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