CN116913593A - Anti-drag high-flexibility cable and preparation method thereof - Google Patents

Anti-drag high-flexibility cable and preparation method thereof Download PDF

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CN116913593A
CN116913593A CN202311169498.XA CN202311169498A CN116913593A CN 116913593 A CN116913593 A CN 116913593A CN 202311169498 A CN202311169498 A CN 202311169498A CN 116913593 A CN116913593 A CN 116913593A
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aramid fiber
parts
cable
drag
insulating layer
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CN116913593B (en
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姚凤林
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Tianjin Xiaomao Tianlan Group Co ltd
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Tianjin Xiaomao Tianlan Group Co ltd
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    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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Abstract

The application relates to the technical field of cables, in particular to an anti-dragging and high-flexibility cable and a preparation method thereof. The anti-drag high-flexibility cable comprises an inner core, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, wherein the insulating layer comprises the following substances: 15-20 parts of butyl rubber, 15-20 parts of ethylene propylene diene monomer rubber, 10-15 parts of an organic solvent, 3-5 parts of aramid fiber, 3-5 parts of white carbon black, 20-30 parts of polyvinyl chloride, 5-10 parts of plasticizer, 10-15 parts of ferric oxide powder and 2-3 parts of paraffin oil; the aramid fiber comprises a modified aramid fiber modified by a modifier, the modifier comprises: silica polyethylene glycol solution. The silicon dioxide is loaded on the surface of the aramid fiber, so that the strength of the aramid fiber can be improved, the entanglement and aggregation of the aramid fiber can be reduced, the insulation layer can obtain uniform strength, and the anti-dragging performance of the cable can be improved.

Description

Anti-drag high-flexibility cable and preparation method thereof
Technical Field
The application relates to the technical field of cables, in particular to an anti-dragging and high-flexibility cable and a preparation method thereof.
Background
Along with the development of economy, the application scene of the cable is also expanded to the places such as high-rise buildings, ships, planes, trains, drilling platforms, mines and the like, and when the cable is used in the mines, the cable is usually connected with equipment in an open-air mine, and because the equipment needs to be moved frequently, the cable is easy to drag, after long-term dragging, the cable is easy to damage, and the use safety of the cable is poor.
Disclosure of Invention
The application provides a cable with anti-drag and high flexibility, which aims at solving the problems that the cable is easy to damage due to drag and the use safety is poor.
It is still another object of the present application to provide a method of making a cable that is resistant to pulling and highly flexible.
The technical aim of the application is realized by the following technical scheme:
in a first aspect, the present application provides an anti-drag, high-flexibility cable, including an inner core, an insulating layer, and a sheath layer sequentially disposed from inside to outside, the insulating layer including: 15-20 parts of butyl rubber, 15-20 parts of ethylene propylene diene monomer rubber, 10-15 parts of an organic solvent, 3-5 parts of aramid fiber, 3-5 parts of white carbon black, 20-30 parts of polyvinyl chloride, 5-10 parts of plasticizer, 10-15 parts of ferric oxide powder and 2-3 parts of paraffin oil; the aramid fiber comprises a modified aramid fiber modified by a modifier, the modifier comprises: silica polyethylene glycol solution.
Through the adoption of the scheme, the aramid fibers are added in the insulating layer, are mutually wound and dispersed in the insulating layer base material, and form a staggered network structure in the insulating layer base material, so that the strength, the dragging resistance and the flexibility of the insulating layer can be effectively improved, and the possibility of cable damage caused by damage of the insulating layer due to repeated dragging can be effectively reduced.
According to the technical scheme, the aramid fiber is preferably modified by adopting the silica polyethylene glycol solution as the modifier, the silica particles can be loaded on the surface of the aramid fiber, the strength of the aramid fiber can be effectively improved by loading the silica on the aramid fiber, entanglement and agglomeration of the aramid fiber can be reduced, and the dispersion of the aramid fiber in the insulating layer is uniform, so that the insulating layer has uniform strength.
In addition, because the polyethylene glycol in the modifier can disperse the silicon dioxide and simultaneously endow the silicon dioxide with proper viscosity, and soften the aramid fiber, the bonding property of the silicon dioxide and the aramid fiber is improved, and meanwhile, the excessive aggregation of the aramid fiber is reduced, so that the strength of the insulating layer is uniformly enhanced.
Optionally, the mass fraction of silicon dioxide in the silicon dioxide polyethylene glycol solution is 28% -32%.
By adopting the technical scheme, the mass fraction of the silicon dioxide is optimized, under the condition of proper silicon dioxide content, the silicon dioxide polyethylene glycol solution can form shear thickening type non-Newtonian fluid, and then the non-Newtonian fluid is used for modifying the aramid fibers, so that the non-Newtonian fluid can be filled between the aramid fibers, gaps in the aramid fibers are reduced, sliding among the fibers is difficult, and the impact resistance effect of the insulating layer can be effectively enhanced.
Optionally, the modified aramid fiber is configured as a strip or filament aramid fiber cloth.
By adopting the technical scheme, as the base material aramid fiber of the modified aramid fiber is strip-shaped or silk-shaped aramid fiber cloth, firstly, the volume of the aramid fiber cloth is larger, more modifier can be loaded, and a large amount of particles in the modifier act together to enhance the shock resistance of the insulating layer; secondly, because the entanglement among the fibers in the aramid fiber cloth is more compact, the compactness of the aramid fiber cloth is more remarkable after the aramid fiber cloth is modified by the shear thickening fluid, and then when the insulating layer is impacted, the impact resistance effect of the insulating layer can be effectively enhanced by the action of particles of the shear thickening fluid and the action of the particles of the aramid fiber cloth under the blocking of the aramid fiber cloth.
Optionally, the modifier further comprises any one of Ding Ci latex and epoxy resin.
Through adopting above-mentioned technical scheme, adopt the pyridine-compound latex or epoxy as the modifier, after carrying out the modification to aramid fiber through pyridine-compound latex or epoxy, can make modified aramid fiber and EPDM rubber form good flexible interface layer, strengthen the interface bonding performance between modified aramid fiber and the insulating layer substrate promptly, when facing impact, dragging, wearing and tearing, the stress that the insulating layer base member received can shift to fibre department, through the stress of modified fiber dispersion, the insulating layer is difficult for receiving stress tearing, damage, the shock resistance and the anti dragging performance of insulating layer have been improved.
Optionally, the aramid fiber further comprises an aramid fiber treated with a silane coupling agent.
Through adopting above-mentioned technical scheme, increased the aramid fiber that is handled through silane coupling agent in the insulating layer, compatibility between aramid fiber and the ethylene propylene diene monomer rubber after silane coupling agent is handled is better, can comparatively evenly disperse in the insulating layer to can twine with modified aramid fiber between. Through the entanglement between the aramid fiber and the modified fiber after being treated by the silane coupling agent, not only can the entangled staggered network structure be formed in the insulating layer, but also the dispersion effect of the modified aramid fiber in the insulating layer can be enhanced, so that the modified aramid fiber not only can form a single two-dimensional network structure in the insulating layer, but also can form a three-dimensional network structure, that is to say, the aramid fiber can form a multi-layer blocking structure in the insulating layer, and the impact resistance and the wear resistance of the insulating layer are stably improved.
Optionally, the aramid fiber is a staple fiber.
By adopting the technical scheme, the structure of the aramid fiber is optimized, and the aramid fiber with a short fiber structure is adopted, so that the dispersion effect of the aramid fiber in the base material of the insulating layer can be further improved, and the possibility of uneven impact resistance effect of the insulating layer caused by excessive entanglement and agglomeration among the aramid fibers is reduced. In addition, the short fiber structure can enable the entangled modified aramid fiber to be closer, so that a network structure with a denser structure can be formed conveniently, and the impact resistance and the dragging resistance of the insulating layer are improved stably.
Optionally, the sheath layer includes the following: according to the weight portions, 0.5 portion of 2-hydroxyethyl-methyl acrylate, 2.37 portions of butyl acrylate, 0.66 portion of polyvinylpyrrolidone, 0.6 portion of adamantane acrylate, 0.5 to 2 portions of glycol dimethacrylate and 0.3 portion of self-repairing particles, wherein the self-repairing particles are alumina nano particles modified by cyclodextrin.
By adopting the technical scheme, the cyclodextrin-modified alumina nano particles are matched with the adamantane-containing acrylic ester, so that after the inclusion compound is generated by self-assembly, the inclusion compound, the 2-hydroxyethyl-methacrylate, the butyl acrylate and the polyvinylpyrrolidone can be copolymerized by free radicals to obtain a sheath layer with a semi-interpenetrating network structure, and the semi-interpenetrating network structure has shape self-repairing performance; the sheath layer material is provided with the inclusion compound and the hydrogen bond, and the inclusion compound and the hydrogen bond have reversible non-covalent interactions, so that the sheath layer material has shape memory and self-repairing performance, and the sheath layer can be self-repaired after being dragged, and the integrity of the cable is maintained.
Optionally, the sheath layer is externally coated with a wear-resistant coating, and the wear-resistant coating comprises an organosilicon coating containing nano zirconium dioxide sol.
By adopting the technical scheme, the organosilicon coating containing the nano zirconium dioxide sol is coated outside the sheath layer, and the hardness and the wear-resisting effect of the sheath layer can be effectively improved due to the fact that the zirconium dioxide particles are higher in hardness and coated outside the sheath layer.
Optionally, the inner wall of the sheath layer is coated with a polyborosiloxane coating.
By adopting the technical scheme, the polyborosiloxane coating is coated on the inner wall of the sheath layer, and the boron-oxygen bond formed by the boron atoms and the oxygen atoms on the microcosmic level has a delayed breaking speed, is very soft in a natural state, and can provide very strong resistance when being impacted, namely, can endow the cable with high flexibility and high impact resistance.
In a second aspect, the present application provides a method for preparing an anti-drag, high-flexibility cable, comprising the steps of: s1, preparing a core material: drawing and annealing the round metal wire, respectively twisting the round metal wire into conductors, and dip-coating the conductors in insulating paint to obtain core materials; s2, preparation of an insulating layer: firstly weighing each component material of an insulating layer, mixing prepared butyl rubber, ethylene propylene diene monomer, an organic solvent, aramid fiber, white carbon black, polyvinyl chloride, a plasticizer, ferric oxide powder and paraffin oil to obtain a mixed material, coating the mixed material outside the core material through extrusion molding to obtain an insulating wire core, and mutually twisting a plurality of insulating wire cores to form an insulating wire core layer; s3, sheath preparation: firstly weighing the component materials of the sheath, and then preparing a copolymer from prepared 2-hydroxyethyl-methacrylate, butyl acrylate, polyvinylpyrrolidone, adamantane acrylate, ethylene glycol dimethacrylate and self-repairing particles to obtain the sheath; s4, cable preparation: and wrapping the sheath outside the insulating wire core layer to obtain the cable.
In summary, the application has the following technical effects:
1. the aramid fiber is modified by adopting the silica polyethylene glycol solution as the modifier, silica particles can be loaded on the surface of the aramid fiber, the strength of the aramid fiber can be effectively improved by filling and reinforcing the aramid fiber by silica, and entanglement and agglomeration of the aramid fiber can be reduced, so that the dispersion of the aramid fiber in the insulating layer is uniform, and the insulating layer has uniform strength; the polyethylene glycol in the modifier can be used for dispersing the silicon dioxide and simultaneously endowing the silicon dioxide with proper viscosity and softening the aramid fiber, so that the bonding property of the silicon dioxide and the aramid fiber is improved, and meanwhile, the excessive aggregation of the aramid fiber is reduced, and the strength of the insulating layer is uniformly enhanced;
2. as the base material aramid fiber of the modified aramid fiber is strip-shaped or thread-shaped aramid fiber cloth, firstly, the volume of the aramid fiber cloth is larger, more modifier can be loaded, and a large amount of particles in the modifier act together to enhance the shock resistance of the insulating layer; secondly, as the entanglement among the fibers in the aramid fiber cloth is relatively compact, the compactness of the aramid fiber cloth is relatively remarkable after the aramid fiber cloth is modified by the shear thickening fluid, and then the impact resistance effect of the insulating layer can be effectively enhanced by the particle antagonism of the shear thickening fluid and the blocking effect of the aramid fiber cloth together against the impact when the insulating layer faces the impact;
3. the aramid fiber treated by the silane coupling agent is added in the insulating layer, so that the compatibility between the aramid fiber treated by the silane coupling agent and the ethylene propylene diene monomer is good, the aramid fiber can be uniformly dispersed in the insulating layer, and the aramid fiber can be entangled with the modified aramid fiber. Through the entanglement between the aramid fiber and the modified fiber after being treated by the silane coupling agent, not only can the entangled staggered network structure be formed in the insulating layer, but also the dispersion effect of the modified aramid fiber in the insulating layer can be enhanced, so that the modified aramid fiber not only can form a single two-dimensional network structure in the insulating layer, but also can form a three-dimensional network structure, that is to say, the aramid fiber can form a multi-layer blocking structure in the insulating layer, and the impact resistance and the wear resistance of the insulating layer are stably improved.
The polyborosiloxane coating is coated on the inner wall of the sheath layer, and the polyborosiloxane coating is very soft in a natural state through the breaking speed retarding effect of a boron-oxygen bond formed by boron atoms and oxygen atoms on a microscopic level, and the boron-oxygen bond can provide very strong resistance when being impacted, namely, can endow the cable with high flexibility and high impact resistance.
Detailed Description
Preparation example
Preparation example of silica polyethylene glycol solution
Preparation example 1
And (3) taking silicon dioxide with the particle size of 500nm and polyethylene glycol (200 g/mol) according to the mass ratio of 7:25, adding the silicon dioxide into the polyethylene glycol solution, carrying out vacuum drying and defoaming, and shaking uniformly to obtain the silicon dioxide polyethylene glycol solution 1.
Preparation example 2
And (3) taking silicon dioxide with the particle size of 500nm and polyethylene glycol (200 g/mol) according to the mass ratio of 3:10, adding the silicon dioxide into the polyethylene glycol solution, carrying out vacuum drying and defoaming, and shaking uniformly to obtain the silicon dioxide polyethylene glycol solution 2.
Preparation example 3
And (3) taking silicon dioxide with the particle size of 500nm and polyethylene glycol (200 g/mol) according to the mass ratio of 8:25, adding the silicon dioxide into the polyethylene glycol solution, carrying out vacuum drying and defoaming, and shaking uniformly to obtain the silicon dioxide polyethylene glycol solution 3.
Preparation example 4
Cutting the aramid fiber cloth to obtain strip-shaped aramid fiber cloth, wherein the width of the strip-shaped aramid fiber cloth is 0.1cm.
Preparation example of modified aramid fiber
Preparation examples 5 to 7
Respectively soaking strip-shaped aramid fiber cloth in a silica polyethylene glycol solution 1-3, performing pressure treatment in a roll mill, and drying for 24 hours after the soaking treatment to obtain modified aramid fibers 1-3.
Preparation example 8
And immersing the modified aramid fiber 1 in Ding Ci latex, performing pressure treatment in a roll mill, and drying for 24 hours after the immersion treatment to obtain the modified aramid fiber 4.
Preparation example 9
And (3) taking the aramid fiber with the short fiber of 10mm, putting the aramid fiber into a muffle furnace for treatment, wherein the furnace temperature is 300 ℃, the treatment time is 5min, and continuously turning the aramid fiber to be fully contacted with air and heated uniformly during the heat treatment to obtain the heat treatment fiber. Immersing the heat-treated fiber into a CaGl2 ethanol solution with the mass fraction of 5%, placing the heat-treated fiber into a constant-temperature water bath for treatment at the temperature of 80 ℃ for 5 h, washing with water, and drying to obtain the intermediate fiber. And immersing the intermediate fiber in Ding Ci latex, performing pressure treatment in a roll mill, and drying for 24 hours after the immersion treatment to obtain the latex modified aramid fiber.
Preparation example 10
Mixing a silane coupling agent KH570 with absolute ethyl alcohol, immersing 10mm short-fiber aramid fiber in the silane coupling agent, taking out and drying to obtain the aramid fiber 1 treated by the silane coupling agent.
PREPARATION EXAMPLE 11
And placing the aramid fiber 1 treated by the silane coupling agent in epoxy resin, taking out the fiber after complete infiltration, and drying to obtain the aramid fiber 2 treated by the silane coupling agent.
Preparation example of self-repairing particles
Preparation example 12
44.05mmoL beta-cyclodextrin is dispersed in 1200mL of desalted water, 13g of p-toluenesulfonyl chloride is added, the mixture is stirred for reaction for 24 hours, 20g of NaOH is added, the filtrate is filtered and reserved, ammonium chloride is added again to adjust the pH value of the solution to 8, the solution is refrigerated and stored, a white precipitate product is obtained by suction filtration at 4 ℃, and the cyclodextrin p-toluenesulfonyl chloride (TOS-CD) is obtained after recrystallization twice. APTES is adopted to react with Al2O3NPs to obtain NH2-Al2O3NPs, 0.5g of NH2-Al2O3NPs is dissolved in 25mL of dimethyl sulfoxide, 8g of TOS-CD is added, the pH is adjusted to 7-8, argon is introduced at 65 ℃ to react for 12 hours, the dimethyl sulfoxide is removed by high-speed freezing and centrifugation, ethanol is used for washing, and solvent is evaporated, thus obtaining the self-repairing particles.
Preparation example of wear-resistant paint
Preparation example 13
Taking 2kg of nano zirconium dioxide sol, 13.6kg of deionized water, 1kg of acetic acid, 10kg of methyl orthosilicate, 30kg of methyltrimethoxysilane, 4kg of phenyltriethoxysilane and 3kg of silane coupling agent KH560, stirring and mixing, heating to 80 ℃, preserving heat for 2h, and cooling to obtain the zirconium dioxide resin. 30g of zirconium dioxide resin, 30mg of catalyst DBU, 60.967g of composite solvent (isopropyl alcohol/butyl acetate/ethylene glycol ethyl ether/propylene glycol methyl ether acetate with the mass ratio of 4:1:2:1) and 0.3g of flatting agent BYK-333 are taken, stirred and mixed to obtain the wear-resistant paint.
Examples
Examples 1 to 3
The application provides an anti-dragging high-flexibility cable which comprises an inner core, an insulating layer and a sheath layer, wherein the inner core, the insulating layer and the sheath layer are sequentially arranged from inside to outside;
wherein the insulating layer comprises the following substances: the special mass of the modified aramid fiber is shown in table 1, wherein the aramid fiber comprises a modified aramid fiber 1 modified by a modifier, and the organic solvent is ethanol.
The sheath layer comprises the following substances: 0.5 part of 2-hydroxyethyl-methacrylate, 2.37 parts of butyl acrylate, 0.66 part of polyvinylpyrrolidone, 0.6 part of adamantyl acrylate, 0.5 part of ethylene glycol dimethacrylate and 0.3 part of self-repairing particles.
The application also provides a preparation method of the anti-drag and high-flexibility cable, which comprises the following steps:
s1, preparing a core material: drawing and annealing the round metal wire, respectively twisting the round metal wire into conductors, and dip-coating the conductors in insulating paint to obtain core materials;
s2, preparation of an insulating layer: firstly weighing each component material of an insulating layer, mixing prepared butyl rubber, ethylene propylene diene monomer, an organic solvent, aramid fiber, white carbon black, polyvinyl chloride, a plasticizer, ferric oxide powder and paraffin oil to prepare a mixed material, coating the mixed material outside a core material by extrusion molding to prepare an insulating wire core 1-3, and mutually twisting a plurality of insulating wire cores to form an insulating wire core layer;
s3, sheath preparation: firstly weighing the component materials of the sheath, and then preparing a copolymer from prepared 2-hydroxyethyl-methacrylate, butyl acrylate, polyvinylpyrrolidone, adamantane acrylate, ethylene glycol dimethacrylate and self-repairing particles to obtain the sheath;
s4, cable preparation: and wrapping the sheath outside the insulating wire core layer to obtain the cable 1-3.
Examples 4 to 6
The difference from example 2 is that: the modified aramid fiber 2-4 with equal mass is adopted to replace the modified aramid fiber 1 in the embodiment 2 to prepare the insulated wire core 4-6, so as to obtain the cable 4-6.
Example 7
The difference from example 2 is that: the aramid fiber comprises latex modified aramid fiber and modified aramid fiber 1 with equal mass, and an insulating wire core 7 is prepared to obtain the cable 7.
Examples 8 to 9
The difference from example 7 is that: the aramid fiber comprises an equal mass of aramid fiber 1-2 treated by a silane coupling agent and a modified aramid fiber 1, and an insulating wire core 8-9 is prepared to obtain a cable 8-9.
Example 10
The difference from example 2 is that: the sheath layer comprises the following substances: 0.5 part of 2-hydroxyethyl-methacrylate, 2.37 parts of butyl acrylate, 0.66 part of polyvinylpyrrolidone, 0.6 part of adamantane acrylate, 1 part of ethylene glycol dimethacrylate and 0.3 part of self-repairing particles, a sheath layer 4 was prepared, and a cable 10 was obtained.
Example 11
The difference from example 2 is that: and (5) coating the wear-resistant coating outside the sheath layer, drying to form the wear-resistant coating, and obtaining the cable 11.
Example 12
The difference from example 2 is that: the jacket 6 is produced by coating the inner wall of the jacket layer with a polyborosiloxane non-newtonian fluid coating, resulting in the cable 12.
EXAMPLE 13
The difference from example 11 is that: the inner wall of the sheath layer is coated with a polyborosiloxane non-Newtonian fluid coating to obtain the sheath 7, and the cable 13 is obtained.
Comparative example
Comparative example 1
The difference from example 2 is that: and (3) preparing the insulated wire core 10 without adding the modified aramid fiber 1 into the insulating layer to obtain the cable 14.
Comparative example 2
The difference from example 2 is that: in this comparative example, an epoxy resin was used as a modifier instead of the silica polyethylene glycol solution in example 2, and an insulated wire core 11 was prepared to obtain a cable 15.
Performance testing
1. Impact resistance detection
The impact strength of the cables of examples 1-13, comparative examples 1-2 was measured according to the GB/T1451-2005 standard.
2. Wear resistance test
The abrasion rates of the cables of examples 1 to 13 and comparative examples 1 to 2 were examined according to GB/T3960-2016 method for testing sliding frictional abrasion of plastics, and the lower the abrasion rate, the better the abrasion resistance of the test pieces was shown.
Flexible test
The wear rates of the cables of examples 1-13, comparative examples 1-2 were tested according to the standard test according to GB/T1040.1-2018.
And (3) flexibility test:
using a bending tester to test the flexibility of the electric wire, bending the electric wire for 30min at 40 times/min, and observing whether crease occurs; the cables of examples 1-13 and comparative example 2 were not creased, and the cable of comparative example 1 was creased.
The performance test comparison with reference to table 2 can be found:
1. comparison of examples 1-3 and comparative examples 1-2 shows that: the impact resistance and tensile strength of the cables prepared in examples 1-3 are improved, which means that the silica polyethylene glycol solution is used as a modifier to modify the aramid fiber, silica particles are loaded on the surface of the aramid fiber, so that the strength of the aramid fiber is improved, entanglement and agglomeration of the aramid fiber are reduced, the aramid fiber is uniformly dispersed in the insulating layer, and the insulating layer has uniform strength;
2. comparison of examples 4-5 and example 2 shows that: the impact resistance and tensile strength of the cables prepared in examples 4-5 are improved, which shows that the content of silicon dioxide is optimized in the application, so that the modifier can be a shear thickening liquid with proper consistency, and the impact resistance of the cables is improved;
3. as can be seen from a comparison of example 6 and example 2: the impact resistance and tensile strength of the cable prepared in the embodiments 1-3 are improved, which means that after the modified aramid fiber is modified by adopting Ding Ci latex, the modified aramid fiber and ethylene propylene diene monomer rubber can form a good flexible interface layer, namely, the interface bonding performance between the modified aramid fiber and an insulating layer substrate is enhanced, and when the cable faces impact, dragging and abrasion, the stress born by the insulating layer substrate can be transferred to the fiber, and the insulating layer is not easily torn and damaged due to stress dispersion of the modified fiber, so that the impact resistance and dragging resistance of the insulating layer are improved;
4. comparison of examples 7-9 with example 2 shows that: the impact resistance and tensile strength of the cable prepared in the embodiment 1-3 are improved, which means that the aramid fiber treated by the latex modified aramid fiber or the silane coupling agent is added into the aramid fiber, and the aramid fiber treated by the latex modified aramid fiber or the silane coupling agent is respectively wound with the modified fiber, so that the dispersion uniformity and the interface bonding strength of the modified fiber in the insulating layer can be effectively improved, and a staggered three-dimensional network structure is formed, so that the insulating layer can obtain more uniform impact resistance and multi-layer impact resistance;
5. comparison of examples 10-11 with example 2 shows that: the impact resistance and tensile strength of the cables prepared in examples 1-3 are improved, which shows that the cyclodextrin modified alumina nano particles are mutually matched with the adamantane-containing acrylic ester to obtain a sheath layer with a semi-interpenetrating network structure, and the semi-interpenetrating network structure has shape self-repairing performance; the sheath layer material is provided with an inclusion compound and a hydrogen bond, wherein the inclusion compound and the hydrogen bond have reversible non-covalent interactions, so that the sheath layer material has shape memory and self-repairing performance, and the sheath layer can be self-repaired after being dragged, and the integrity of the cable is maintained;
6. comparison of examples 12-13 with example 2 shows that: the impact resistance and tensile strength of the cables prepared in examples 1-3 were both improved, which means that the use of the polyborosiloxane coating on the inner wall of the jacket layer in the present application, by virtue of the delayed breaking speed effect of the boron-oxygen bond composed of the boron atoms and oxygen atoms at the microscopic level, was very soft in the natural state, and the boron-oxygen bond provided very strong resistance when subjected to impact, that is, was able to impart high flexibility and high impact resistance to the cables.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims (10)

1. The utility model provides an anti-drag, high compliance's cable which characterized in that, includes inner core, insulating layer and restrictive coating that from inside to outside set up in proper order, the insulating layer includes following substances: 15-20 parts of butyl rubber, 15-20 parts of ethylene propylene diene monomer rubber, 10-15 parts of an organic solvent, 3-5 parts of aramid fiber, 3-5 parts of white carbon black, 20-30 parts of polyvinyl chloride, 5-10 parts of plasticizer, 10-15 parts of ferric oxide powder and 2-3 parts of paraffin oil;
the aramid fiber comprises a modified aramid fiber modified by a modifier, the modifier comprises: silica polyethylene glycol solution.
2. The anti-drag, high flexibility cable of claim 1, wherein: the mass fraction of silicon dioxide in the silicon dioxide polyethylene glycol solution is 28% -32%.
3. The anti-drag, high flexibility cable of claim 1, wherein: the modified aramid fiber is configured as a strip-shaped or filament-shaped aramid fiber cloth.
4. The anti-drag, high flexibility cable of claim 2, wherein: the modifier also comprises any one of Ding Ci latex and epoxy resin.
5. The anti-drag, high flexibility cable of claim 1, wherein: the aramid fiber also comprises an aramid fiber treated by a silane coupling agent.
6. The anti-drag, high flexibility cable of claim 5, wherein: the aramid fiber is a short fiber.
7. The anti-drag, high flexibility cable of claim 1, wherein: the sheath layer comprises the following substances: according to the weight portions, 0.5 portion of 2-hydroxyethyl-methyl acrylate, 2.37 portions of butyl acrylate, 0.66 portion of polyvinylpyrrolidone, 0.6 portion of adamantane acrylate, 0.5 to 2 portions of glycol dimethacrylate and 0.3 portion of self-repairing particles, wherein the self-repairing particles are alumina nano particles modified by cyclodextrin.
8. The anti-drag, high flexibility cable of claim 7, wherein: the wear-resistant coating is coated outside the sheath layer and comprises an organosilicon coating containing nano zirconium dioxide sol.
9. The anti-drag, high flexibility cable of claim 7, wherein: the inner wall of the sheath is coated with a polyborosiloxane coating.
10. The preparation method of the cable with the characteristics of drag resistance and high flexibility is characterized by comprising the following steps:
s1, preparing a core material: drawing and annealing the round metal wire, respectively twisting the round metal wire into conductors, and dip-coating the conductors in insulating paint to obtain core materials;
s2, preparation of an insulating layer: firstly weighing each component material of an insulating layer, mixing prepared butyl rubber, ethylene propylene diene monomer, an organic solvent, aramid fiber, white carbon black, polyvinyl chloride, a plasticizer, ferric oxide powder and paraffin oil to obtain a mixed material, coating the mixed material outside the core material through extrusion molding to obtain an insulating wire core, and mutually twisting a plurality of insulating wire cores to form an insulating wire core layer;
s3, sheath preparation: firstly weighing the component materials of the sheath, and then preparing a copolymer from prepared 2-hydroxyethyl-methacrylate, butyl acrylate, polyvinylpyrrolidone, adamantane acrylate, ethylene glycol dimethacrylate and self-repairing particles to obtain the sheath;
s4, cable preparation: and wrapping the sheath outside the insulating wire core layer to obtain the cable.
CN202311169498.XA 2023-09-12 2023-09-12 Anti-drag high-flexibility cable and preparation method thereof Active CN116913593B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015100764A1 (en) * 2013-12-31 2015-07-09 深圳市联嘉祥科技股份有限公司 Wear-resistant pressure-proof cable and manufacturing method therefor
CN111276287A (en) * 2020-02-13 2020-06-12 长沙华脉新材料有限公司 Stretch-proof high-temperature-resistant aerospace cable and preparation method thereof
CN114188085A (en) * 2022-02-16 2022-03-15 广东金华电缆股份有限公司 Multi-core flexible mineral insulation fireproof cable and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015100764A1 (en) * 2013-12-31 2015-07-09 深圳市联嘉祥科技股份有限公司 Wear-resistant pressure-proof cable and manufacturing method therefor
CN111276287A (en) * 2020-02-13 2020-06-12 长沙华脉新材料有限公司 Stretch-proof high-temperature-resistant aerospace cable and preparation method thereof
CN114188085A (en) * 2022-02-16 2022-03-15 广东金华电缆股份有限公司 Multi-core flexible mineral insulation fireproof cable and preparation method thereof

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