CN115938650A - Low-hydrogen-loss antirust cable and preparation method thereof - Google Patents
Low-hydrogen-loss antirust cable and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 23
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 16
- WAUGGYPDCQZJKK-UHFFFAOYSA-N 1h-pyrrol-3-amine Chemical compound NC=1C=CNC=1 WAUGGYPDCQZJKK-UHFFFAOYSA-N 0.000 claims abstract description 14
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 14
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims abstract description 14
- 239000011976 maleic acid Substances 0.000 claims abstract description 14
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002135 nanosheet Substances 0.000 claims abstract description 13
- UYBWIEGTWASWSR-UHFFFAOYSA-N 1,3-diaminopropan-2-ol Chemical compound NCC(O)CN UYBWIEGTWASWSR-UHFFFAOYSA-N 0.000 claims abstract description 12
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims abstract description 12
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 claims abstract description 12
- 229960003656 ricinoleic acid Drugs 0.000 claims abstract description 12
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- DLQYXUGCCKQSRJ-UHFFFAOYSA-N tris(furan-2-yl)phosphane Chemical compound C1=COC(P(C=2OC=CC=2)C=2OC=CC=2)=C1 DLQYXUGCCKQSRJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- CYKMNKXPYXUVPR-UHFFFAOYSA-N [C].[Ti] Chemical compound [C].[Ti] CYKMNKXPYXUVPR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 40
- 239000010410 layer Substances 0.000 claims description 26
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- -1 diene compound Chemical class 0.000 claims description 21
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 20
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Chemical compound CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 230000002209 hydrophobic effect Effects 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- JQCXWCOOWVGKMT-UHFFFAOYSA-N phthalic acid diheptyl ester Natural products CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC JQCXWCOOWVGKMT-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 6
- KVCGISUBCHHTDD-UHFFFAOYSA-M sodium;4-methylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1 KVCGISUBCHHTDD-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 28
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 14
- 230000002441 reversible effect Effects 0.000 abstract description 5
- 238000004132 cross linking Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000009257 reactivity Effects 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 23
- 230000007797 corrosion Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 150000001993 dienes Chemical group 0.000 description 4
- 150000004291 polyenes Polymers 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000006352 cycloaddition reaction Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 125000000168 pyrrolyl group Chemical group 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Organic Insulating Materials (AREA)
Abstract
The invention discloses a low-hydrogen-loss antirust cable and a preparation method thereof, and relates to the technical field of cables. According to the invention, a modified antirust film is formed outside a conductive core by ricinoleic acid, 3-aminopyrrole, p-phenylenediamine and carboxylated titanium carbon nano sheets, and a corrosive medium is separated from the conductive core, so that the cable has an antirust effect and a conductive network is formed at the same time, so that the cable has an electromagnetic shielding effect; then, tris (2-furyl) phosphine, polyvinyl chloride, maleic acid and 1, 3-diamino-2-hydroxypropane are subjected to cross-linking polymerization outside the modified antirust film to form a self-repairing insulating layer, so that the insulating layer has thermal reversible reactivity and a self-repairing effect; and winding a wrapping tape and wrapping a protective sleeve to obtain the low-hydrogen-loss antirust cable. The low-hydrogen-loss antirust cable prepared by the invention has the effects of rust prevention, electromagnetic shielding and self-repairing.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a low-hydrogen-loss antirust cable and a preparation method thereof.
Background
The cable is used for transmitting electric (magnetic) energy, information and realizing wire rod products of electromagnetic energy conversion, and can be defined as follows: a collection consisting of: one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. With the rapid development of economy, cables are widely applied in various industries and fields.
In the installation and use process of the cable, due to the influence of external factors and self aging, micro damage or microcracks are inevitably generated on the insulating layer of the cable, and the existing detection technology is difficult to find. In the operation process of the cable, the microcracks of the insulating layer can initiate and accelerate the growth of the electric branches under the action of the continuous electric field, and finally the insulating layer is punctured, so that the electrical performance and the physical performance of the cable material are reduced, and the actual service life of the cable is seriously influenced. In addition, the existing cable is usually shielded by round copper wires, the gap between the copper wires is large, the shielding anti-interference performance is poor, and data distortion is easily caused.
The hydrogen loss is one form of corrosion, and refers to a process that hydrogen in the environment reacts with certain components in the metal to form high-pressure bubbles, the high-pressure bubbles nucleate and grow at grain boundaries, and the high-pressure bubbles are connected with each other to form cracks, so that the performance of the metal is reduced. Besides hydrogen, oxygen, sulfur and other corrosion media exist, which affect the quality, service life and performance reliability of the cable. Based on the above, it is very important to prepare a cable with antirust, electromagnetic shielding and self-repairing effects.
Disclosure of Invention
The invention aims to provide a low-hydrogen-loss antirust cable and a preparation method thereof, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
the low-hydrogen-loss antirust cable comprises a conductive core, a modified antirust film, a self-repairing insulating layer, a wrapping tape layer and a protective sleeve.
Furthermore, the modified anti-rust film is prepared by electroplating an anti-rust film on the surface layer of the conductive core and spraying a carboxylated titanium carbon nanosheet under the action of vacuum heat pumping and pressing.
Further, the self-repairing insulating layer is prepared by reacting tri (2-furyl) phosphine, polyvinyl chloride, maleic acid and 1, 3-diamino-2-hydroxypropane.
Further, the conductive core is one of aluminum alloy or copper alloy with the diameter of 1-3 mm; the winding and wrapping tape layer is formed by winding a mica tape; the protective sleeve is prepared from polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate.
Further, the preparation method of the low-hydrogen-loss antirust cable comprises the following preparation steps:
(1) Removing hydrophobic pyrrole, p-phenylenediamine and sodium toluenesulfonateThe electrolyte is prepared by mixing the following components in a mass ratio of 1.5 2 Reacting for 1-3 h at the electrode distance of 5-15 cm, and drying for 1-2 h at 50-60 ℃ to obtain the antirust conductive core;
(2) Spraying a titanized carbon nanosheet-absolute ethyl alcohol solution with the mass of the antirust conductive core being 0.1-0.3 times that of the antirust conductive core, wherein the mass ratio of the carboxylated titanized carbon nanosheet to the absolute ethyl alcohol in the titanized carbon nanosheet-absolute ethyl alcohol solution is 1-10-1, and reacting at the temperature of 90-110 ℃ for 30-90 min to obtain a modified antirust conductive core;
(3) Mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1-2;
(4) Twisting 10-30 self-repairing insulated conductive cores, and winding a mica tape with the width of 40-45 mm and the thickness of 0.1-0.15 mm under the wrapping included angle of 15-30 degrees, the rotating speed of 100-150 r/min and the pitch of 0.6-1.0 m to prepare a wrapping tape layer; mixing polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate according to a mass ratio of 1.05-1.
Further, the preparation method of the hydrophobic pyrrole in the step (1) comprises the following steps: mixing ricinoleic acid and 3-aminopyrrole according to the mass ratio of 1-1.
Further, the preparation method of the carboxylated titanium carbon nanosheet in the step (2) comprises the following steps: mixing lithium fluoride, hydrochloric acid with the mass fraction of 38% and titanium aluminum carbide according to the mass ratio of 1.
Further, the preparation method of the diene compound in the step (3) comprises the following steps: mixing maleic acid, 1, 3-diamino-2-hydroxypropane and acetonitrile according to a mass ratio of 1.5.
Further, the conjugated polyene compound in the step (3) is prepared by the following steps: mixing polyvinyl chloride, tri (2-furyl) phosphine and aluminum trichloride according to a mass ratio of 1.
The low-hydrogen-loss antirust cable prepared by the invention comprises a conductive core, a modified antirust film, a self-repairing insulating layer, a wrapping tape layer and a protective sleeve, and has the effects of rust prevention, electromagnetic shielding and self-repairing.
Firstly, the modified anti-rust film is prepared by electroplating an anti-rust film on the surface layer of the conductive core and spraying a carboxylated titanium-carbon nanosheet under the action of vacuum hot pumping and pressing; the antirust film is prepared from ricinoleic acid, 3-aminopyrrole and p-phenylenediamine; carboxyl in ricinoleic acid reacts with amino in 3-aminopyrrole to prepare hydrophobic pyrrole, the pyrrole structure is adsorbed on the surface of the conductive core to prevent corrosive media from contacting with the conductive core, so that the cable has an antirust effect, and meanwhile, the hydrophobic long chain forms a hydrophobic protective layer to separate the corrosive media from the conductive core and increase the antirust effect; then under the action of an electric field, the hydrophobic pyrrole is polymerized with p-phenylenediamine to form a pi conjugated system, so that the surface electron transmission is accelerated, and the cable has an electromagnetic shielding effect; after the electroplating film is formed, under the action of vacuum hot pumping, the carboxylated titanium carbon nanosheets are immersed into the pores of the anti-rust film, and are combined with the hydroxyl on the anti-rust film through the carboxyl, so that the compactness of the anti-rust film is improved, the anti-rust effect is enhanced, and meanwhile, the anti-rust film and a conjugated system are bridged to form a conductive network, and the electromagnetic shielding effect is enhanced.
Secondly, the self-repairing insulating layer is prepared by the cross-linking reaction of tri (2-furyl) phosphine, polyvinyl chloride, maleic acid and 1, 3-diamino-2-hydroxypropane; under microwave irradiation, tri (2-furyl) phosphine replaces active chlorine atoms on a polyvinyl chloride molecular chain through acylation reaction to form a conjugated polyene structure, thereby improving the thermal stability of polyvinyl chloride, inhibiting the desalting reaction of polyvinyl chloride, ensuring the proceeding of the thermal reversible reaction and gaining the self-repairing effect; maleic acid and 1, 3-diamino-2-hydroxypropane react to form a symmetrical diene structure, and cycloaddition reaction is carried out on the diene structure and the conjugated polyene structure to generate a ring structure, so that the thermal reversible reactivity is realized, the insulating layer has a self-repairing effect, meanwhile, the cycloaddition reaction shortens a conjugated chain, the flexibility of the insulating layer is improved, and the insulating effect is enhanced; under the action of ultraviolet light, the self-repairing insulating layer is combined with the modified antirust film through double bonds, and the self-repairing insulating layer and the modified antirust film are cooperated to block a corrosion medium, so that the antirust effect is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe the method for testing the indexes of the low-hydrogen-loss rustproof cable manufactured in the following examples as follows:
the antirust effect is as follows: taking the embodiment and the comparative example with the same mass and size to carry out a corrosion resistance effect test, placing the embodiment and the comparative example in a hydrochloric acid medium with the mass fraction of 20% for 12 hours, measuring the mass after corrosion, and calculating the corrosion rate; corrosion rate = (mass before corrosion-mass after corrosion)/mass before corrosion × 100%.
Electromagnetic shielding effect: and (3) taking the embodiment and the comparative example with the same mass and size to carry out an electromagnetic shielding effect test, and measuring the volume resistivity of the antirust cable with low hydrogen loss by referring to GB/T12706.
Self-repairing effect: taking the embodiment and the comparative example with the same mass and size to carry out a self-repairing effect test, using a knife to scratch wounds with the same depth, size and density on the self-repairing insulating layer, standing for 30min at 100 ℃, testing the resistance values of the cables before and after repairing by referring to GB/T3048, and calculating the repairing rate; repair rate = post-repair resistance/pre-repair resistance.
Example 1
(1) Mixing ricinoleic acid and 3-aminopyrrole according to a mass ratio of 1; mixing hydrophobic pyrrole, p-phenylenediamine, sodium toluenesulfonate and deionized water according to a mass ratio of 1.5 2 Reacting for 1h at the electrode spacing of 5cm, and drying for 1h at 50 ℃ to obtain the antirust conductive core;
(2) Mixing lithium fluoride, hydrochloric acid with the mass fraction of 38% and titanium aluminum carbide according to the mass ratio of 1;
(3) Spraying a titanized carbon nanosheet-absolute ethyl alcohol solution with the mass of the antirust conductive core being 0.1 time that of the antirust conductive core, wherein the mass ratio of carboxylated titanized carbon nanosheets to absolute ethyl alcohol in the titanized carbon nanosheet-absolute ethyl alcohol solution is 1;
(4) Mixing maleic acid, 1, 3-diamino-2-hydroxypropane and acetonitrile according to a mass ratio of 1.5;
(5) Mixing polyvinyl chloride, tri (2-furyl) phosphine and aluminum trichloride according to the mass ratio of 1;
(6) Mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1:5, reacting at 40 ℃ for 10min, adding a conjugated polyene compound with the mass being 0.2 times that of the diene compound, reacting at 60 ℃ for 12h, extruding at 150-250 ℃ to the modified antirust conductive core, and irradiating with 320nm ultraviolet light for 3min to obtain a self-repairing insulated conductive core;
(7) Twisting 10 self-repairing insulating conductive cores, and winding a mica tape with the width of 40mm and the thickness of 0.1mm at a winding included angle of 15 degrees, a rotating speed of 100r/min and a pitch of 0.6m to prepare a winding tape layer; mixing polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate according to a mass ratio of 1.
Example 2
(1) Mixing ricinoleic acid and 3-aminopyrrole according to a mass ratio of 1; mixing hydrophobic pyrrole, p-phenylenediamine, sodium toluenesulfonate and deionized water according to a mass ratio of 1.5 2 Reacting for 2 hours at the electrode distance of 10cm, and drying for 1.5 hours at 55 ℃ to obtain the antirust conductive core;
(2) Mixing lithium fluoride, hydrochloric acid with the mass fraction of 38% and titanium aluminum carbide according to the mass ratio of 1.5;
(3) Spraying a titanium carbon nanosheet-absolute ethyl alcohol solution with the mass 0.2 time that of the antirust conductive core on the antirust conductive core, wherein the mass ratio of carboxylated titanium carbon nanosheets to absolute ethyl alcohol in the titanium carbon nanosheet-absolute ethyl alcohol solution is 1;
(4) Mixing maleic acid, 1, 3-diamino-2-hydroxypropane and acetonitrile according to a mass ratio of 2;
(5) Mixing polyvinyl chloride, tri (2-furyl) phosphine and aluminum trichloride according to the mass ratio of 1.5;
(6) Mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1.5, reacting at 45 ℃ for 20min, adding a conjugated polyene compound with the mass of 0.3 time that of the diene compound, reacting at 65 ℃ for 18h, extruding the mixture at 150-250 ℃ to a modified antirust conductive core, and irradiating with 350nm ultraviolet light for 4min to prepare a self-repairing insulated conductive core;
(7) Twisting 20 self-repairing insulating conductive cores, and winding a mica tape with the width of 43mm and the thickness of 0.13mm at a winding included angle of 23 degrees, the rotating speed of 125r/min and the pitch of 0.8m to prepare a winding tape layer; mixing polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate according to a mass ratio of 1.03.
Example 3
(1) Mixing ricinoleic acid and 3-aminopyrrole according to the mass ratio of 1; mixing hydrophobic pyrrole, p-phenylenediamine, sodium toluenesulfonate and deionized water according to a mass ratio of 1.5 2 Reacting for 3 hours at the electrode distance of 15cm, and drying for 2 hours at 60 ℃ to obtain the antirust conductive core;
(2) Mixing lithium fluoride, hydrochloric acid with the mass fraction of 38% and titanium aluminum carbide according to a mass ratio of 2;
(3) Spraying a titanized carbon nanosheet-absolute ethyl alcohol solution with the mass of the antirust conductive core being 0.3 times that of the antirust conductive core, wherein the mass ratio of carboxylated titanized carbon nanosheets to absolute ethyl alcohol in the titanized carbon nanosheet-absolute ethyl alcohol solution is 1;
(4) Mixing maleic acid, 1, 3-diamino-2-hydroxypropane and acetonitrile according to a mass ratio of 3;
(5) Mixing polyvinyl chloride, tri (2-furyl) phosphine and aluminum trichloride according to the mass ratio of 1;
(6) Mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 2;
(7) Twisting 30 self-repairing insulating conductive cores, and winding a 45mm wide mica tape with the thickness of 0.15mm at a winding included angle of 30 degrees, a rotating speed of 150r/min and a pitch of 1.0m to prepare a winding tape layer; mixing polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate according to a mass ratio of 1.04 to 0.06, and extruding at 150-250 ℃ to obtain the low-hydrogen-loss antirust cable.
Comparative example 1
Comparative example 1 differs from example 2 only in the difference from step (1), step (1)The method is changed into the following steps: mixing 3-aminopyrrole, p-phenylenediamine, sodium toluene sulfonate and deionized water according to a mass ratio of 1.5 2 And reacting for 2 hours at the electrode distance of 10cm, and drying for 1.5 hours at 55 ℃ to obtain the antirust conductive core. The rest of the procedure was the same as in example 2.
Comparative example 2
Comparative example 2 differs from example 2 only in step (1), which was changed to: mixing ricinoleic acid and 3-aminopyrrole according to a mass ratio of 1; mixing hydrophobic pyrrole, sodium toluenesulfonate and deionized water according to a mass ratio of 1.5 2 And reacting for 2 hours at the electrode distance of 10cm, and drying for 1.5 hours at 55 ℃ to obtain the antirust conductive core. The rest of the procedure was the same as in example 2.
Comparative example 3
Comparative example 3 differs from example 2 only in that steps (2) and (3) are not present, step (6) is changed to: and mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1.5, reacting at 45 ℃ for 20min, adding a conjugated polyene compound with the mass of 0.3 time of that of the diene compound, reacting at 65 ℃ for 18h, extruding at 150-250 ℃ to an antirust conductive core, and irradiating with 350nm ultraviolet light for 4min to obtain the self-repairing insulated conductive core. The rest of the procedure was the same as in example 2.
Comparative example 4
Comparative example 4 differs from example 2 only in that step (4) is absent and step (6) is changed to: mixing maleic acid and N, N-dimethylformamide according to a mass ratio of 1.5, reacting at 45 ℃ for 20min, adding a conjugated polyene compound with the mass of 0.3 time that of the maleic acid, reacting at 65 ℃ for 18h, extruding at 150-250 ℃ to the modified antirust conductive core, and irradiating with 350nm ultraviolet light for 4min to obtain the self-repairing insulated conductive core. The rest of the procedure was the same as in example 2.
Comparative example 5
Comparative example 5 differs from example 2 only in that step (5) is absent and step (6) is changed to: and (2) mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1.5, reacting at 45 ℃ for 20min, adding polyvinyl chloride with the mass being 0.3 time that of the diene compound, reacting at 65 ℃ for 18h, extruding the modified antirust conductive core at 150-250 ℃, and irradiating with 350nm ultraviolet light for 4min to obtain the self-repairing insulated conductive core. The rest of the procedure was the same as in example 2.
Examples of effects
Table 1 below gives the results of performance analysis of the low hydrogen loss rustproof cables using examples 1 to 3 of the present invention and comparative examples 1 to 5.
TABLE 1
| Corrosion ratio (%) | Volume resistivity (omega cm) | Repair ratio (%) | |
| Example 1 | 0.05 | 419 | 88.8 |
| Example 2 | 0.03 | 423 | 89.4 |
| Example 3 | 0.04 | 420 | 89.1 |
| Comparative example 1 | 10.99 | 401 | 86.9 |
| Comparative example 2 | 0.56 | 214 | 87.3 |
| Comparative example 3 | 4.51 | 331 | 87.5 |
| Comparative example 4 | 0.10 | 409 | 51.8 |
| Comparative example 5 | 0.13 | 411 | 50.5 |
Compared with the corrosion rate and volume resistivity data of the comparative example in the table 1, the corrosion rate and volume resistivity data of the embodiment and the comparative example show that after the anti-rust film prepared from ricinoleic acid, 3-aminopyrrole and p-phenylenediamine is electroplated on the surface of the conductive core, the anti-rust performance is obviously improved, the ricinoleic acid reacts with the 3-aminopyrrole, the pyrrole structure is adsorbed on the surface of the conductive core, and meanwhile, the hydrophobic long chain extends outwards to form a hydrophobic protective layer to prevent a corrosive medium from contacting with the conductive core, so that the cable has an anti-rust effect; the 3-aminopyrrole and p-phenylenediamine are coupled and polymerized under the action of an electric field to form a pi conjugated system, so that the surface electron transmission is accelerated, the cable has an electromagnetic shielding effect, the carboxylated titanium carbon nanosheets are immersed into pores of the antirust film under the action of vacuum hot pumping, the compactness of the antirust film is improved, the antirust effect is enhanced, and meanwhile, the antirust film and the conjugated system are bridged to form a conductive network, so that the electromagnetic shielding effect is enhanced; the comparison of the repair rate data of the examples and the comparative examples in the table 1 shows that the self-repairing insulating layer prepared by the cross-linking reaction of the tri (2-furyl) phosphine, the polyvinyl chloride, the maleic acid and the 1, 3-diamino-2-hydroxypropane has good self-repairing performance, the tri (2-furyl) phosphine reacts with the polyvinyl chloride to form a conjugated polyene structure, the hydrochloric acid desalting reaction of the polyvinyl chloride is inhibited, the thermal reversible reaction is ensured, and the self-repairing effect is enhanced; maleic acid and 1, 3-diamino-2-hydroxypropane react to form a symmetrical diene structure, and cycloaddition reaction is carried out on the symmetrical diene structure and the conjugated polyene structure to generate a thermally reversible reactive ring structure, so that the insulating layer has a self-repairing effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The low-hydrogen-loss antirust cable is characterized by comprising a conductive core, a modified antirust film, a self-repairing insulating layer, a wrapping tape layer and a protective sleeve.
2. The low-hydrogen-loss antirust cable according to claim 1, wherein the modified antirust film is prepared by electroplating an antirust film on the surface layer of the conductive core and spraying a carboxylated titanium carbon nanosheet under the action of vacuum heat pumping and pressing.
3. The low-hydrogen-loss antirust cable according to claim 2, wherein the antirust film is prepared from ricinoleic acid, 3-aminopyrrole and p-phenylenediamine.
4. The low-hydrogen-loss antirust cable according to claim 1, wherein the self-repairing insulating layer is prepared by reacting tris (2-furyl) phosphine, polyvinyl chloride, maleic acid and 1, 3-diamino-2-hydroxypropane.
5. The low-hydrogen-loss antirust cable according to claim 1, wherein the conductive core is one of an aluminum alloy or a copper alloy with a diameter of 1-3 mm; the winding and wrapping tape layer is formed by winding a mica tape; the protective sleeve is prepared from polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate.
6. A preparation method of a low-hydrogen-loss antirust cable is characterized by comprising the following preparation steps of:
(1) Mixing hydrophobic pyrrole, p-phenylenediamine, sodium toluenesulfonate and deionized water according to a mass ratio of 1.5 2 Reacting for 1-3 h at the electrode distance of 5-15 cm, and drying for 1-2 h at 50-60 ℃ to obtain the antirust conductive core;
(2) Spraying a titanized carbon nanosheet-absolute ethyl alcohol solution with the mass of the antirust conductive core being 0.1-0.3 times that of the antirust conductive core, wherein the mass ratio of the carboxylated titanized carbon nanosheet to the absolute ethyl alcohol in the titanized carbon nanosheet-absolute ethyl alcohol solution is 1-10-1, and reacting at the temperature of 90-110 ℃ for 30-90 min to obtain a modified antirust conductive core;
(3) Mixing a diene compound and N, N-dimethylformamide according to a mass ratio of 1: 5-2: 5, reacting at 40-50 ℃ for 10-30 min, adding a conjugated polyene compound with the mass of 0.2-0.4 times that of the diene compound, reacting at 60-70 ℃ for 12-24 h, extruding the modified antirust conductive core at 150-250 ℃, and irradiating with 320-380 nm ultraviolet light for 3-5 min to prepare a self-repairing insulated conductive core;
(4) Twisting 10-30 self-repairing insulating conductive cores, and winding a mica tape with the width of 40-45 mm and the thickness of 0.1-0.15 mm under the conditions that the wrapping included angle is 15-30 degrees, the rotating speed is 100-150 r/min and the pitch is 0.6-1.0 m to prepare a wrapping tape layer; polyvinyl chloride, a coupling agent KH560, an accelerator NA-22 and di-n-octyl phthalate according to the mass ratio
1, 0.01.
7. The method for preparing the antirust cable with low hydrogen loss according to claim 6, wherein the hydrophobic pyrrole in the step (1) is prepared by the following steps: mixing ricinoleic acid and 3-aminopyrrole according to the mass ratio of 1-1.
8. The preparation method of the low-hydrogen-loss antirust cable according to claim 6, wherein the preparation method of the carboxylated titanium-containing carbon nanosheet in the step (2) is as follows: mixing lithium fluoride, hydrochloric acid with the mass fraction of 38% and titanium aluminum carbide according to the mass ratio of 1.
9. The method for preparing the antirust cable with low hydrogen loss according to claim 6, wherein the method for preparing the diene compound in the step (3) comprises the following steps: mixing maleic acid, 1, 3-diamino-2-hydroxypropane and acetonitrile according to a mass ratio of 1.5.
10. The method for preparing an antirust cable with low hydrogen loss according to claim 6, wherein the conjugated polyene compound in step (3) is prepared by: mixing polyvinyl chloride, tri (2-furyl) phosphine and aluminum trichloride according to a mass ratio of 1.
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