CN116741471B - Anti-aging wire and cable and preparation method thereof - Google Patents
Anti-aging wire and cable and preparation method thereof Download PDFInfo
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- CN116741471B CN116741471B CN202310525048.3A CN202310525048A CN116741471B CN 116741471 B CN116741471 B CN 116741471B CN 202310525048 A CN202310525048 A CN 202310525048A CN 116741471 B CN116741471 B CN 116741471B
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- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 57
- 239000011248 coating agent Substances 0.000 claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 47
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 47
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims description 48
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 37
- 238000001035 drying Methods 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 22
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 20
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- UTCSSFWDNNEEBH-UHFFFAOYSA-N imidazo[1,2-a]pyridine Chemical compound C1=CC=CC2=NC=CN21 UTCSSFWDNNEEBH-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 16
- BIQRPLMAKJWHIH-UHFFFAOYSA-N 1h-imidazo[4,5-b]pyridine-2-carboxylic acid Chemical compound C1=CN=C2NC(C(=O)O)=NC2=C1 BIQRPLMAKJWHIH-UHFFFAOYSA-N 0.000 claims description 15
- -1 1-propyl phosphoric acid cyclic anhydride Chemical class 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 229940126062 Compound A Drugs 0.000 claims description 13
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
- 229940052810 complex b Drugs 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- USFPINLPPFWTJW-UHFFFAOYSA-N tetraphenylphosphonium Chemical compound C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 USFPINLPPFWTJW-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 9
- 238000010025 steaming Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 7
- IKHJUSWVJKICAT-UHFFFAOYSA-N 3-bromopyridine-2,6-dicarboxylic acid Chemical compound OC(=O)C1=CC=C(Br)C(C(O)=O)=N1 IKHJUSWVJKICAT-UHFFFAOYSA-N 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 6
- OBNCKNCVKJNDBV-UHFFFAOYSA-N ethyl butyrate Chemical compound CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 claims description 6
- FEYDZHNIIMENOB-UHFFFAOYSA-N 2,6-dibromopyridine Chemical compound BrC1=CC=CC(Br)=N1 FEYDZHNIIMENOB-UHFFFAOYSA-N 0.000 claims description 5
- WOXFMYVTSLAQMO-UHFFFAOYSA-N 2-Pyridinemethanamine Chemical compound NCC1=CC=CC=N1 WOXFMYVTSLAQMO-UHFFFAOYSA-N 0.000 claims description 5
- GFHNAMRJFCEERV-UHFFFAOYSA-L cobalt chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Co+2] GFHNAMRJFCEERV-UHFFFAOYSA-L 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- CCRMAATUKBYMPA-UHFFFAOYSA-N trimethyltin Chemical compound C[Sn](C)C.C[Sn](C)C CCRMAATUKBYMPA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000002390 rotary evaporation Methods 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 16
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Substances C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 abstract description 5
- 229910017052 cobalt Inorganic materials 0.000 abstract description 4
- 239000010941 cobalt Substances 0.000 abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000012621 metal-organic framework Substances 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 10
- 230000005587 bubbling Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000004108 freeze drying Methods 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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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
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
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Abstract
The invention relates to the technical field of wires and cables, and discloses an anti-aging wire and cable and a preparation method thereof; cobalt (Co) is selected as a metal blank, and bipyridine-imidazole connecting agent is introduced to prepare a two-dimensional MOF material with high heat dissipation performance and oxidation resistance; the preparation method comprises the steps of immersing carbon nano tubes in a MOF preparation process to prepare the composite MOF crosslinked carbon nano tubes with the three-dimensional structure, preparing two materials into a coating to be coated on the surface of a conductor, extruding a coating insulating layer through an extruder, cooling, rolling and packaging to obtain the anti-aging wire and cable. The material has wide application prospect in the field of wires and cables, and provides an effective way for solving the problem of cable aging.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to an anti-aging wire and cable and a preparation method thereof.
Background
With the rapid development of modern technology, the requirements for power and communication are continuously increasing, and the electric wires and cables are increasingly used in various fields. However, the conventional electric wires and cables are easily affected by aging phenomena in the use process, which is mainly caused by factors such as oxidation, thermal degradation and ultraviolet radiation of materials, the use situation of the electric wires and cables is usually a dark and airtight place, and the aging caused by the heating of the conductors in the electric wires and cables becomes a main cause of the aging of the electric wires and cables. Over time, the electrical conductivity, mechanical properties and insulation properties of the cable gradually decrease, possibly leading to malfunctions and even fires, bringing a great risk to production and life.
To solve this problem, researchers have made extensive research in the field of cable preparation in an attempt to find a wire and cable material having high aging resistance. Among them, metal Organic Framework (MOF) materials have become a research hotspot in this area due to their unique structure and properties. However, the existing MOF material has the defects in the aspects of high heat dissipation performance and oxidation resistance, and the wide application of the MOF material in the field of wires and cables is limited.
In order to overcome the problems, the invention provides a wire and cable with high ageing resistance and a preparation method thereof. Cobalt (Co) is selected as a metal blank, and bipyridine-imidazole connecting agent is introduced to prepare a two-dimensional MOF material with high heat dissipation performance and oxidation resistance; the preparation method comprises the steps of immersing carbon nano tubes in a MOF preparation process to prepare the composite MOF crosslinked carbon nano tubes with the three-dimensional structure, preparing two materials into a coating to be coated on the surface of a conductor, extruding a coating insulating layer through an extruder, cooling, rolling and packaging to obtain the anti-aging wire and cable. The material has wide application prospect in the field of wires and cables, and provides an effective way for solving the problem of cable aging.
Disclosure of Invention
The invention aims to provide an anti-aging wire and cable and a preparation method thereof, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the preparation method of the anti-aging wire and cable comprises the following steps:
s1: adding 3-bromopyridine-2, 6-dicarboxylic acid into n-butyl acetate, sequentially adding an ethyl n-butyrate solution of 2-aminomethylpyridine and 1-propyl phosphoric acid cyclic anhydride under stirring, heating for refluxing, cooling, quenching, adding a saturated sodium bicarbonate solution for regulating pH, carrying out suction filtration, rotary evaporation and purification to obtain 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
s2: drying 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine and hexamethyl-ditin, adding into anhydrous toluene for deoxidization, adding tetraphenylphosphine palladium for deoxidization, heating for reaction, cooling to room temperature, rotary steaming, and purifying to obtain 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
s3: drying 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine and 2, 6-dibromopyridine, adding into anhydrous toluene to deoxidize, adding tetraphenylphosphine palladium to deoxidize, heating for reaction, cooling to room temperature, rotary steaming, and purifying to obtain a compound A;
s4: adding the compound A and cobalt chloride hexahydrate into ethanol, heating and refluxing, filtering, and vacuum drying a filter cake to obtain a complex B;
s5: adding the compound A and the complex B into an N-ethylmorpholine ethanol solution, heating for reaction, cooling, filtering, adding an ammonium hexafluorophosphate solution into the filtrate, rotary steaming, filtering, washing and vacuum drying to obtain a carboxyimidazopyridine complex;
s6: adding cobalt nitrate hexahydrate and carboxyl imidazopyridine complex into N, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution, performing hydrothermal reaction, filtering, washing, drying, and performing ultrasonic stripping to obtain a thin-layer two-dimensional MOF; performing siloxane pretreatment on the carbon nano tube, immersing the pretreated carbon nano tube into a precursor solution, performing hydrothermal reaction, filtering, washing, drying, separating a substrate, and crushing to obtain a composite carbon nano tube;
s7: dispersing the thin-layer two-dimensional MOF and the composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A; when the coating A is in a semi-dry state, spraying the mixed emulsion B on the coating A to obtain a coating B, and drying and curing at room temperature to obtain a conductor;
s8: melting and blending the polyolefin-based material, the anti-aging agent and the ultraviolet resistant agent, and extruding to obtain an insulating layer; and (3) after the conductor is covered by the insulating layer, cooling, rolling and packaging to obtain the anti-aging wire and cable.
Further, in the 3- (pyridine-3-bromo-6-carboxy) imidazo [1,5- α ] pyridine, 3-bromopyridine-2, 6-dicarboxylic acid: the mass ratio of the 2-aminomethylpyridine is (4.92-9.84) 4.32; the heating reflux temperature is 125-130 ℃, the time is 16-18h, and the pH is regulated to 7.5-8.5.
Further, in the 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1,5- α ] pyridine, 3- (pyridine-3-bromo-6-carboxyl) imidazo [1,5- α ] pyridine: hexamethyl ditin: the mass ratio of the tetraphenylphosphine palladium is (1.56-2.10) 1.9:0.8; the heating reaction temperature is 115-120 ℃ and the time is 2-3h.
Further, in the compound A, 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine: 2, 6-dibromopyridine: the mass ratio of the tetraphenylphosphine palladium is (2.78-3) 0.5:0.4; the heating reaction temperature is 115-120 ℃ and the time is 2-3h; in the complex B, a compound A: the mass ratio of the cobalt chloride hexahydrate is (0.275-0.3) 0.2; heating and refluxing for 2-3h; in the carboxyimidazopyridine complex, compound a: the mass ratio of the complex B is (0.11-0.12) 0.18; the heating reaction temperature is 115-120 ℃ and the time is 2-3h; the concentration of the ammonium hexafluorophosphate solution is 0.2mol/L.
Further, the deoxidizing mode is Ar bubbling deoxidizing for 10min.
Further, in the step S1, cobalt nitrate hexahydrate: carboxyimidazopyridine complexes: the mass ratio of the carbon nano tube is 0.08 (1.0-1.8) to 1.625-1.875; the carbon nanotube is vertical carbon nanotube with density of 0.135-0.15g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The heating reaction temperature is 100-120 ℃ and the time is 8-24h.
Further, the ultrasonic stripping temperature is 0 ℃ ice bath, the time is 2-3h, and the power is 650-700W; the substrate separation is to soak the product after ultrasonic stripping in 40-45% hydrofluoric acid solution at 20-25 ℃ for 1-1.5min, then soak in deionized water for 18-24h, and freeze-dry; the crushing grain size is 20-25nm.
Further, in the step S2, the concentration of the thin-layer two-dimensional MOF in the mixed emulsion A is 0.5-0.8wt%; in the mixed emulsion B, the concentration of the composite carbon nano tube is 0.2 to 0.5 weight percent; mixing emulsion A: the mass ratio of the mixed emulsion B is 1:1.
Further, the thickness of the coating A is 20+/-5 mu m, and the thickness of the coating B is 20+/-5 mu m.
Further, in the step S3, the insulating layer comprises 80-100 parts of polyolefin-based material, 5-10 parts of anti-aging agent and 1-3 parts of ultraviolet resistant agent according to parts by weight.
Further, the polyolefin-based material is polyethylene.
Further, the anti-aging agent is TMQ.
Further, the ultraviolet resistance agent is UV-531.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, cobalt (Co) is selected as a metal blank, and bipyridine-imidazole connecting agent is introduced to prepare the two-dimensional MOF material with high heat dissipation performance and oxidation resistance; the preparation method comprises the steps of immersing carbon nano tubes in a MOF preparation process to prepare the composite MOF crosslinked carbon nano tubes with the three-dimensional structure, preparing two materials into a coating to be coated on the surface of a conductor, extruding a coating insulating layer through an extruder, cooling, rolling and packaging to obtain the anti-aging wire and cable.
Because the external insulating layer of the traditional wire and cable has good oxidation resistance, chemical corrosion resistance and ultraviolet resistance, most of the use environments are in dry, airtight and narrow spaces, the biggest reason for promoting the aging of the wire and cable is that the accelerated aging caused by the internal overheating of the wire and cable insulating layer accounts for a small part of factors in the daily use process; according to the invention, a two-dimensional plane structure of the MOF is combined with a longitudinal two-dimensional structure of the vertical carbon nanotube to prepare a three-dimensional cross-linked MOF-carbon nanotube network; compared with the traditional single two-dimensional plane or longitudinal two-dimensional plane, the interconnected network structure can greatly reduce internal thermal resistance, the vertical carbon nanotubes and the MOF are interconnected to provide larger contact area and larger specific surface area, the heat dissipation efficiency is greatly improved, and the crisscross structure is favorable for overcoming the non-uniformity of coating distribution and avoiding the problem of heat accumulation caused by local accumulation.
The MOF structure with high heat dissipation and high oxidation resistance is prepared by using the metal cobalt and bipyridine-imidazole connecting agent. Bipyridine-imidazole type connecting agents can form stable coordination bonds with metal ions, so that the stability of conductors is improved. The stabilizing effect is helpful for reducing the influence of environmental factors (such as oxidation, humidity and the like) on the conductor in the use process, reducing the attenuation of the conductive performance, and the prepared coating can be tightly attached to the conductor without affecting the conductive performance of the conductor. In the process of preparing the coating, the concentration of the two materials in the aqueous polyurethane is accurately controlled, so that a network structure can form a continuous phonon transmission network in a polymer matrix, meanwhile, a MOF structure transversely loaded on the carbon nano tube is formed, a porous structure is formed, heat and an insulating layer are prevented from being directly contacted and aged, heat is mutually conducted and dissipated between the hot air pores, the situation of local overheating is avoided when the heat is uniformly spread, and the heat dissipation device has higher heat conduction efficiency and heat dissipation efficiency.
In the practical use process of the electric wires and the cables, the situation that the electric wires are locally overheated due to unstable current can occur, the situation causes serious harm to the service life of the electric wires and the cables in the process of accumulating all the year round, the coating prepared by the application can form a structure similar to a miniature radiating fin on the surface of the coating, and the local excessively high heat can be longitudinally and transversely conducted, so that the original excessively high temperature is dispersed on a larger surface area with lower heat, heat accumulation is not easy to cause, and the local aging phenomenon occurs.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following examples, 3-bromopyridine-2, 6-dicarboxylic acid was supplied by the scientific company of carboline, beijing; the aqueous polyurethane dispersion is provided by Jining Hua Kai resin Co., ltd, the solid content is 35%, and the VOC content is 253g/L; the carbon nanotubes were provided by Beijing Technical Co., ltd, 15nm in diameter, and the remaining materials were commercially available.
The carboxyimidazopyridine complex is prepared as follows:
adding 4.92g of 3-bromopyridine-2, 6-dicarboxylic acid into 50mL of n-butyl acetate, sequentially adding 4.32g of 2-aminomethylpyridine into 20mL of ethyl n-butyrate solution under stirring, adding 50mL of 1-propylphosphoric acid cyclic anhydride, heating to 130 ℃ for refluxing for 16h, cooling, adding deionized water for quenching, adding saturated sodium bicarbonate solution for regulating the pH to 8, carrying out suction filtration, carrying out rotary evaporation, and purifying to obtain 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
drying 1.56g of 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine and 1.9g of hexamethyl-ditin, adding into 20mL of anhydrous toluene, bubbling Ar to remove oxygen for 10min, adding 0.8g of tetraphenylphosphine palladium, bubbling Ar to remove oxygen for 10min, heating to 120 ℃ to react for 3h, cooling to room temperature, steaming in a rotary manner, and purifying to obtain 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
drying 2.78g of 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine and 0.5g of 2, 6-dibromopyridine, adding into 10mL of anhydrous toluene, bubbling with Ar to remove oxygen, adding 0.4g of tetraphenylphosphine palladium, bubbling with Ar to remove oxygen, heating to 120 ℃ to react for 3 hours, cooling to room temperature, steaming in a rotary way, and purifying to obtain a compound A; 0.275g of compound A and 0.2g of cobalt chloride hexahydrate are added into 50mL of ethanol, heated and refluxed for 2 hours, filtered, and the filter cake is dried in vacuum to complex B; adding 0.11g of compound A and 0.18g of complex B into a reaction vessel, adding 20mL of ethanol and 10 mu LN-ethyl morpholine ethanol, uniformly mixing, heating to 120 ℃ for reaction for 3 hours, cooling, filtering, adding 10mL of ammonium hexafluorophosphate solution with the concentration of 0.2mol/L into the filtrate, steaming, filtering, washing and drying in vacuum to obtain the carboxyl imidazopyridine complex.
Example 1: a preparation method of an anti-aging wire and cable comprises the following steps: s1: adding 0.08g of cobalt nitrate hexahydrate and 1g of carboxyl imidazopyridine complex into 200mLN, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution, heating the precursor solution to 120 ℃ by hydrothermal method for reaction for 10 hours, filtering, washing, drying, adding the product into 200mL of ethanol, and carrying out ultrasonic stripping for 2 hours under the power of 700W in an ice bath at 0 ℃ to obtain a thin-layer two-dimensional MOF; 1.625g of carbon nano tube is subjected to siloxane pretreatment, the pretreated carbon nano tube is immersed into a precursor solution, the reaction is carried out for 10 hours at 120 ℃ by hydrothermal heating, filtering, washing and drying are carried out, the product is soaked in a hydrofluoric acid solution with the concentration of 45% at 25 ℃ for 1min, then is soaked in deionized water for 24 hours, and is taken out for freeze drying and crushing after substrate separation, thus obtaining the composite carbon nano tube with the particle size of 20 nm;
s2: dispersing 0.5g of thin-layer two-dimensional MOF and 0.2g of composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
s3: melt blending 80g of polyethylene, 5g of TMQ and 1gUV-531 at 110 ℃, and extruding and coating at 220 ℃ to obtain an insulating layer; and (3) after the conductor is covered by the insulating layer, cooling, rolling and packaging to obtain the anti-aging wire and cable.
Example 2: a preparation method of an anti-aging wire and cable comprises the following steps: s1: adding 0.08g of cobalt nitrate hexahydrate and 1g of carboxyl imidazopyridine complex into 200mLN, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution, heating the precursor solution to 120 ℃ by hydrothermal method for reaction for 10 hours, filtering, washing, drying, adding the product into 200mL of ethanol, and carrying out ultrasonic stripping for 2 hours under the power of 700W in an ice bath at 0 ℃ to obtain a thin-layer two-dimensional MOF; 1.625g of carbon nano tube is subjected to siloxane pretreatment, the pretreated carbon nano tube is immersed into a precursor solution, the reaction is carried out for 10 hours at 120 ℃ by hydrothermal heating, filtering, washing and drying are carried out, the product is soaked in a hydrofluoric acid solution with the concentration of 45% at 25 ℃ for 1min, then is soaked in deionized water for 24 hours, and is taken out for freeze drying and crushing after substrate separation, thus obtaining the composite carbon nano tube with the particle size of 20 nm;
s2: dispersing 0.6g of thin-layer two-dimensional MOF and 0.3g of composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
s3: melt blending 80g of polyethylene, 5g of TMQ and 1gUV-531 at 110 ℃, and extruding and coating at 220 ℃ to obtain an insulating layer; and (3) after the conductor is covered by the insulating layer, cooling, rolling and packaging to obtain the anti-aging wire and cable.
Example 3: a preparation method of an anti-aging wire and cable comprises the following steps: s1: adding 0.08g of cobalt nitrate hexahydrate and 1g of carboxyl imidazopyridine complex into 200mLN, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution, heating the precursor solution to 120 ℃ by hydrothermal method for reaction for 10 hours, filtering, washing, drying, adding the product into 200mL of ethanol, and carrying out ultrasonic stripping for 2 hours under the power of 700W in an ice bath at 0 ℃ to obtain a thin-layer two-dimensional MOF; 1.625g of carbon nano tube is subjected to siloxane pretreatment, the pretreated carbon nano tube is immersed into a precursor solution, the reaction is carried out for 10 hours at 120 ℃ by hydrothermal heating, filtering, washing and drying are carried out, the product is soaked in a hydrofluoric acid solution with the concentration of 45% at 25 ℃ for 1min, then is soaked in deionized water for 24 hours, and is taken out for freeze drying and crushing after substrate separation, thus obtaining the composite carbon nano tube with the particle size of 20 nm;
s2: dispersing 0.8g of thin-layer two-dimensional MOF and 0.5g of composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
s3: melt blending 80g of polyethylene, 5g of TMQ and 1gUV-53 at 110 ℃, and extruding and coating at 220 ℃ to obtain an insulating layer; and (3) after the conductor is covered by the insulating layer, cooling, rolling and packaging to obtain the anti-aging wire and cable.
Comparative example 1: a preparation method of an anti-aging wire and cable comprises the following steps: s2: dispersing 0.2g of thin-layer two-dimensional MOF and 0.2g of composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
the remaining steps were the same as in example 1.
Comparative example 2: a preparation method of an anti-aging wire and cable comprises the following steps: s2: dispersing 0.5g of thin-layer two-dimensional MOF and 0.8g of composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
the remaining steps were the same as in example 1.
Comparative example 3: a preparation method of an anti-aging wire and cable comprises the following steps: s1: adding 0.08g of cobalt nitrate hexahydrate and 1g of carboxyl imidazopyridine complex into 200mLN, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution; heating to 120 ℃ for reaction for 10 hours, filtering, washing, drying, adding the product into 200mL of ethanol, and carrying out ultrasonic stripping for 2 hours at the power of 700W in an ice bath at the temperature of 0 ℃ to obtain a thin-layer two-dimensional MOF; performing siloxane pretreatment on 1.625g of carbon nano tube to obtain modified carbon nano tube with the particle size of 20 nm;
the remaining steps were the same as in example 1.
Comparative example 4: a preparation method of an anti-aging wire and cable comprises the following steps: s2: dispersing 0.8g of composite carbon nano tube and 0.5g of thin-layer two-dimensional MOF in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A with the thickness of 20 mu m; spraying the mixed emulsion B on the coating A when the coating A is in a semi-dry state to obtain a 20 mu m coating B, drying at room temperature, and curing in an oven at 70 ℃ for 24 hours to obtain a conductor;
the remaining steps were the same as in example 1.
And (3) testing: ageing resistance: the cross-sectional area of the conductors in examples 1-3 and comparative examples 1-4 was 2.5mm 2 The prepared electric wire and cable; testing tensile strength T of insulating layer by using 10m wires and cables in the same batch 1 10m wires and cables are connected under 380V voltage, and are circularly electrified for 4000 times to test the tensile strength T of the insulating layer 2 To doRatio.
Thermal conductivity properties: coating A and B of examples 1-3 and comparative examples 1-4 on one side of an insulating layer with a length and width of 30cm×10cm, and carrying out a local heating test on the insulating layer, the coating B and the coating A sequentially from top to bottom, monitoring the temperature of the non-coated side of the insulating layer, wherein the heating temperature is 100 ℃, the time is 5min, and the temperature is marked as C 1 The method comprises the steps of carrying out a first treatment on the surface of the Carrying out local heating test on one side of an insulating layer with length and width of 30cm multiplied by 10cm, monitoring the temperature of the other side of the insulating layer, wherein the heating temperature is 100 ℃, the time is 5min, and the insulating layer is marked as C 2 The method comprises the steps of carrying out a first treatment on the surface of the And (3) data processing: c (C) 1 /C 2 The smaller the ratio of (c) is, the higher the thermal conductivity is.
Conclusion: the wires and cables prepared in examples 1-3 have excellent heat conducting property and ageing resistance.
The reduction of the two-dimensional MOF content of the thin layer in comparative example 1 resulted in uneven dispersion in the coating, and in a decrease in the aging resistance of the wire and cable.
The content of the composite carbon nanotubes in comparative example 2 was increased, resulting in uneven dispersion in the coating, and in a decrease in the aging resistance of the wire and cable.
The MOF in comparative example 3 was not supported on the carbon nanotubes during the production process, resulting in a lack of lateral linking of the vertical carbon nanotubes, resulting in an increase in internal thermal resistance, a decrease in thermal conductivity of the material, and a decrease in aging resistance of the wire and cable.
In comparative example 4, the two coatings are sequentially exchanged, so that the vertical carbon nanotubes cannot be interpenetrated with the two-dimensional MOF in the coating, the coating is not tightly combined with the conductor and is easy to fall off, and the ageing resistance of the wire and the cable is reduced.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A preparation method of an anti-aging wire and cable is characterized by comprising the following steps: the preparation method comprises the following steps:
s1: adding cobalt nitrate hexahydrate and carboxyl imidazopyridine complex into N, N-dimethylformamide for ultrasonic dissolution to obtain a precursor solution, performing hydrothermal reaction, filtering, washing, drying, and performing ultrasonic stripping to obtain a thin-layer two-dimensional MOF; performing siloxane pretreatment on the carbon nano tube, immersing the pretreated carbon nano tube into a precursor solution, performing hydrothermal reaction, filtering, washing, drying, separating a substrate, and crushing to obtain a composite carbon nano tube;
s2: dispersing the thin-layer two-dimensional MOF and the composite carbon nano tube in the aqueous polyurethane emulsion respectively, and uniformly stirring to obtain a mixed emulsion A and a mixed emulsion B; spraying the mixed emulsion A on the surface of oxygen-free copper to obtain a coating A; when the coating A is in a semi-dry state, spraying the mixed emulsion B on the coating A to obtain a coating B, and drying and curing at room temperature to obtain a conductor;
s3: melting and blending a polyolefin-based material, an anti-aging agent and an ultraviolet resistant agent, and extruding and coating at 220 ℃ to obtain an insulating layer; and (3) after the conductor is covered by the insulating layer, cooling, rolling and packaging to obtain the anti-aging wire and cable.
2. The method for manufacturing an anti-aging wire and cable according to claim 1, wherein: in step S1, the carboxyimidazopyridine complex is prepared as follows:
adding 3-bromopyridine-2, 6-dicarboxylic acid into n-butyl acetate, sequentially adding an ethyl n-butyrate solution of 2-aminomethylpyridine and 1-propyl phosphoric acid cyclic anhydride under stirring, heating for refluxing, cooling, quenching, adding a saturated sodium bicarbonate solution for regulating pH, carrying out suction filtration, rotary evaporation and purification to obtain 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
drying 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine and hexamethyl-ditin, adding into anhydrous toluene for deoxidization, adding tetraphenylphosphine palladium for deoxidization, heating for reaction, cooling to room temperature, rotary steaming, and purifying to obtain 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine;
drying 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine and 2, 6-dibromopyridine, adding into anhydrous toluene to deoxidize, adding tetraphenylphosphine palladium to deoxidize, heating for reaction, cooling to room temperature, rotary steaming, and purifying to obtain a compound A; adding the compound A and cobalt chloride hexahydrate into ethanol, heating and refluxing, filtering, and vacuum drying a filter cake to obtain a complex B; and adding the compound A and the complex B into an N-ethylmorpholine ethanol solution, heating for reaction, cooling, filtering, adding an ammonium hexafluorophosphate solution into the filtrate, rotary steaming, filtering, washing and vacuum drying to obtain the carboxyimidazopyridine complex.
3. The method for producing an anti-aging wire and cable according to claim 2, wherein: in the 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine, 3-bromopyridine-2, 6-dicarboxylic acid: the mass ratio of the 2-aminomethylpyridine is (4.92-9.84) 4.32; the heating reflux temperature is 125-130 ℃, the time is 16-18h, and the pH is regulated to 7.5-8.5.
4. The method for producing an anti-aging wire and cable according to claim 2, wherein: in the 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine, 3- (pyridine-3-bromo-6-carboxyl) imidazo [1, 5-alpha ] pyridine: hexamethyl ditin: the mass ratio of the tetraphenylphosphine palladium is (1.56-2.10) 1.9:0.8; the heating reaction temperature is 115-120 ℃ and the time is 2-3h.
5. The method for producing an anti-aging wire and cable according to claim 2, wherein: in the compound A, 3- (pyridine-3-trimethyltin-6-carboxyl) imidazo [1, 5-alpha ] pyridine: 2, 6-dibromopyridine: the mass ratio of the tetraphenylphosphine palladium is (2.78-3) 0.5:0.4; the heating reaction temperature is 115-120 ℃ and the time is 2-3h; in the complex B, a compound A: the mass ratio of the cobalt chloride hexahydrate is (0.275-0.3) 0.2; heating and refluxing for 2-3h; in the carboxyimidazopyridine complex, compound a: the mass ratio of the complex B is (0.11-0.12) 0.18; the heating reaction temperature is 115-120 ℃ and the time is 2-3h; the concentration of the ammonium hexafluorophosphate solution is 0.2mol/L.
6. The method for manufacturing an anti-aging wire and cable according to claim 1, wherein: in the step S1, cobalt nitrate hexahydrate: carboxyimidazopyridine complexes: the mass ratio of the carbon nano tube is 0.08 (1.0-1.8) to 1.625-1.875; the carbon nanotube is vertical carbon nanotube with density of 0.135-0.15g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The hydrothermal reaction temperature is 100-120 ℃ and the time is 8-24h.
7. The method for manufacturing an anti-aging wire and cable according to claim 1, wherein: the ultrasonic stripping temperature is 0 ℃ ice bath, the time is 2-3h, and the power is 650-700W; the substrate separation is to soak the product after ultrasonic stripping in 40-45% hydrofluoric acid solution at 20-25 ℃ for 1-1.5min, then soak in deionized water for 18-24h, and freeze-dry; the crushing grain size is 20-25nm.
8. The method for manufacturing an anti-aging wire and cable according to claim 1, wherein: in the step S2, in the mixed emulsion A, the concentration of the thin-layer two-dimensional MOF is 0.5-0.8wt%; in the mixed emulsion B, the concentration of the composite carbon nano tube is 0.2 to 0.5 weight percent; mixing emulsion A: the mass ratio of the mixed emulsion B is 1:1.
9. The method for manufacturing an anti-aging wire and cable according to claim 1, wherein: in the step S3, the insulating layer comprises 80-100 parts of polyolefin-based materials, 5-10 parts of anti-aging agents and 1-3 parts of ultraviolet resistant agents according to parts by weight; the melt blending temperature is 110-120 ℃, and the extrusion temperature is 200-230 ℃.
10. An anti-aging wire and cable prepared by the method for preparing an anti-aging wire and cable according to any one of claims 1 to 9.
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