A flexible corrosion-resistant robot cable

Abstract

The present invention relates to the field of cable technology and proposes a flexible, corrosion-resistant robot cable. The cable comprises, from the inside out, a cable core, a shielding layer, an inner sheath layer, and an outer sheath layer. The cable core comprises, from the inside out, a conductor and an insulating layer. The outer sheath layer comprises the following components in parts by weight: 60-70 parts high-density polyethylene, 15-25 parts ethylene-tetrafluoroethylene copolymer, 0.5-1.5 parts antioxidant, 1-3 parts plasticizer, 8-12 parts flame retardant, 10-20 parts polyethylene glycol diacrylate composite barium sulfate, and 1-2 parts lubricant. The raw materials of the polyethylene glycol diacrylate composite barium sulfate include polyethylene glycol diacrylate, barium chloride, and sodium sulfate. The above technical solution solves the problem of poor corrosion resistance of robot cables in related technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a flexible corrosion-resistant robot cable. Background Art

[0002] Against the backdrop of booming industrial and intelligent manufacturing technologies, robots are widely used in fields such as automotive manufacturing, electronic assembly, chemical production, ocean exploration, and food processing. These application scenarios place extremely stringent demands on robot cables. Not only do they need to be highly flexible to accommodate the robot's frequent bending, twisting, and telescoping movements, but they must also be able to withstand various corrosive media to ensure long-term stable operation in harsh environments. In actual use, especially in special environments such as the chemical and marine environments, cables are subject to corrosion from corrosive substances such as acid and alkali solutions, salt spray, and oil stains. The polyethylene-based sheath layer is prone to aging and corrosion, which in turn reduces the cable's protective capabilities, causing short circuits or leakage, seriously threatening the safety of equipment operation and the personal safety of operators. To address this problem, existing technologies often add corrosion-resistant inorganic fillers, such as barium sulfate, to improve the corrosion resistance of the sheath layer. However, barium sulfate has poor dispersibility in polyethylene, resulting in limited improvement in the corrosion resistance of the sheath layer. Therefore, developing a robot cable with high corrosion resistance can not only significantly improve the stability and reliability of the robot's operation, extend its service life, and reduce maintenance costs; it can also promote the development of automated production in high-risk and complex environments, and has irreplaceable significance for promoting industrial intelligent transformation and ensuring production safety and efficiency. Summary of the Invention

[0003] The present invention provides a flexible corrosion-resistant robot cable, which solves the problem of poor corrosion resistance of robot cables in related technologies.

[0004] The technical solutions of the present invention are as follows:

[0005] The present invention provides a flexible corrosion-resistant robot cable, which comprises, from the inside to the outside, a cable core, a shielding layer, an inner sheath layer, and an outer sheath layer. The cable core comprises, from the inside to the outside, a conductor and an insulation layer. The raw materials of the outer sheath layer include the following components in parts by weight:

[0006] 60-70 parts of high-density polyethylene, 15-25 parts of ethylene-tetrafluoroethylene copolymer, 0.5-1.5 parts of antioxidant, 1-3 parts of plasticizer, 8-12 parts of flame retardant, 10-20 parts of polyethylene glycol diacrylate composite barium sulfate, and 1-2 parts of lubricant; the raw materials of the polyethylene glycol diacrylate composite barium sulfate include polyethylene glycol diacrylate, barium chloride, and sodium sulfate.

[0007] As a further technical solution, the preparation method of the polyethylene glycol diacrylate composite barium sulfate comprises the following steps:

[0008] A1. Adding barium chloride and polyethylene glycol diacrylate into water to obtain a mixed solution I;

[0009] A2, adding sodium sulfate to water to obtain a mixed solution II;

[0010] A3. Add the mixed solution II to the mixed solution I, and mix them. Then, filter and dry them to obtain polyethylene glycol diacrylate composite barium sulfate.

[0011] In the outer sheath layer of the flexible corrosion-resistant robot cable of the present invention, polyethylene glycol diacrylate is added during the preparation of barium sulfate, so that the particle size distribution of the barium sulfate can be narrower, and the polyethylene glycol diacrylate can be uniformly adsorbed and wrapped on the surface of the barium sulfate to form a steric hindrance layer, which prevents the barium sulfate particles from approaching and agglomerating each other, improves the dispersibility of the barium sulfate in the polyethylene matrix, fully exerts the corrosion resistance of the barium sulfate, and further improves the corrosion resistance of the cable.

[0012] As a further technical solution, the added amount of the polyethylene glycol diacrylate is 4% to 7% of the mass of the barium chloride.

[0013] Polyethylene glycol diacrylate improves the dispersibility of barium sulfate through steric effect and electrostatic repulsion. When the addition amount of polyethylene glycol diacrylate is 4% to 7% of the mass of barium chloride, the dispersibility of barium sulfate can be effectively improved. When the addition amount is too low, the amount of polyethylene glycol diacrylate is small and a complete adsorption layer cannot be formed on the surface of barium sulfate particles. The particles are easily agglomerated due to collision and the aggregation of barium sulfate particles cannot be effectively prevented. When the addition amount is too high, too many polyethylene glycol diacrylate molecules will entangle with each other, which in turn reduces the effective coverage on the surface of barium sulfate particles and affects the dispersion effect.

[0014] As a further technical solution, the mass ratio of the barium chloride to the sodium sulfate is 1:0.7~1.

[0015] As a further technical solution, the mass volume ratio of the barium chloride and water is 1g:80mL.

[0016] As a further technical solution, in step A3, the mixing temperature is 40-50° C., and the mixing time is 5-7 h.

[0017] As a further technical solution, the mixing method is mechanical stirring, and the rotation speed of the mechanical stirring is 600~1000rpm.

[0018] As a further technical solution, the weight average molecular weight of the polyethylene glycol diacrylate is 3000-5000.

[0019] The outer sheath of the flexible, corrosion-resistant robot cable of the present invention contains polyethylene glycol diacrylate with a relatively flexible chain segment. When the weight-average molecular weight is between 3,000 and 5,000, the molecular chains can stretch and slide relatively freely when the cable is stretched, resulting in a high elongation at break for the outer sheath. When the molecular weight is too low, the degree of entanglement between the molecular chains is low, the interaction is weak, and the elongation at break is low. When the molecular weight is too high, the mobility of the flexible chain segments is affected, making internal rotation of the molecular chains and segment movement difficult, reducing the flexibility of the outer sheath.

[0020] As a further technical solution, the ethylene-tetrafluoroethylene copolymer includes ethylene-tetrafluoroethylene copolymer HT-2004 and ethylene-tetrafluoroethylene copolymer HT-2202 in a mass ratio of 1:2-4.

[0021] In the outer sheath layer of the flexible corrosion-resistant robot cable of the present invention, the ethylene-tetrafluoroethylene copolymer is compounded using two types, HT-2004 and HT-2202, to ensure that the outer sheath layer has good corrosion resistance and elongation at break. Both types of ethylene-tetrafluoroethylene copolymers have good corrosion resistance, but there are some differences in their structures. By compounding the two types of ethylene-tetrafluoroethylene copolymers, the molecular chains of the two types can interpenetrate with each other to form a more uniform structure, thereby ensuring the corrosion resistance and flexibility of the outer sheath layer.

[0022] As a further technical solution, the antioxidant includes one or more of antioxidant 168 , antioxidant 1010 , and antioxidant 1024 .

[0023] Antioxidants 168, 1010, and 1024 all exhibit good compatibility in polyethylene matrices, effectively inhibiting thermal oxidation reactions in the cable outer sheath during long-term use and reducing the rate of thermal degradation. Antioxidant 168, a phosphite antioxidant, effectively decomposes hydroperoxides produced during polymer processing and inhibits the generation of free radicals. Antioxidant 1010, a hindered phenol antioxidant, can capture free radicals and interrupt chain oxidation reactions. Antioxidant 1024 contains both hindered phenols and sulfur-containing groups, exerting antioxidant effects at different stages of the process.

[0024] As a further technical solution, the plasticizer includes dioctyl phthalate and epoxidized soybean oil; the mass ratio of the dioctyl phthalate to the epoxidized soybean oil is 5-9:1.

[0025] Dioctyl phthalate effectively inserts between polyethylene molecular chains, increasing molecular spacing, reducing intermolecular forces, and enhancing flexibility and plasticity. Epoxidized soybean oil exhibits excellent compatibility with polyethylene, not only plasticizing it but also slowing thermal decomposition and acting as a stabilizer. When dioctyl phthalate and epoxidized soybean oil are compounded in a mass ratio of 5 to 9:1, a significant synergistic effect is achieved, ensuring the outer sheath material is soft and easy to process, extending the product's service life.

[0026] As a further technical solution, the lubricant includes one or more of polyethylene wax, paraffin wax, and stearic acid.

[0027] Polyethylene wax has good internal lubrication, which can reduce the friction between polymer molecular chains, making the material flow more easily during processing and reducing energy consumption during processing; paraffin wax has outstanding external lubrication effect. During processing, it forms a lubricating film on the surface of the material, reducing the friction between the material and the processing equipment; stearic acid has both internal and external lubrication effects. The long carbon chain in the molecular structure can reduce the interaction force between the molecular chains. At the same time, the carboxyl group can produce a certain affinity with the surface of the processing equipment, which has a good lubrication effect.

[0028] As a further technical solution, the flame retardant includes one or more of resorcinol bis(diphenyl phosphate), ammonium polyphosphate, and melamine.

[0029] Compared to some traditional halogen-containing flame retardants, resorcinol bis(diphenyl phosphate), ammonium polyphosphate, and melamine produce fewer toxic and harmful gases during the flame retardant process, making them more environmentally friendly and safer. Resorcinol bis(diphenyl phosphate) is a phosphorus-based flame retardant. During combustion, it forms phosphoric acid and polyphosphoric acid, which promote carbonization of the polymer surface, forming a dense char layer that isolates oxygen and heat. Ammonium polyphosphate decomposes upon heating to produce phosphoric acid, ammonia, and water vapor. Phosphoric acid promotes dehydration and carbonization of the polymer, while ammonia and water vapor dilute combustible gas and oxygen concentrations. Melamine decomposes upon heating to produce inert gases such as nitrogen and ammonia, which dilute oxygen concentrations. The nitrogen-containing compounds produced by its decomposition promote the formation of a char layer, improving its strength and stability.

[0030] The present invention also provides a method for preparing a flexible corrosion-resistant robot cable, comprising the following steps:

[0031] S1. Extruding the insulating layer material on the outside of the conductor to obtain the cable core;

[0032] S2. Weaving the shielding material on the outside of the cable core to obtain a shielding layer;

[0033] S3, extruding the inner sheath material on the outer side of the shielding layer to obtain the inner sheath layer;

[0034] S4. After mixing the raw materials of the outer sheath layer, extrude it onto the outer side of the inner sheath layer to obtain a flexible corrosion-resistant robot cable.

[0035] As a further technical solution, the insulating layer material is polyvinyl chloride.

[0036] There are no freely moving electrons or ions in the molecular structure of polyvinyl chloride, and it has good dielectric properties and insulation resistance, which can effectively prevent current leakage and charge conduction, providing reliable insulation protection for flexible and corrosion-resistant robot cables, preventing users from electric shock, and ensuring the safety and stability of power transmission.

[0037] As a further technical solution, the conductor is a copper core.

[0038] Copper has extremely low resistivity. As a conductor, the copper core can ensure minimal current loss during transmission, efficiently transmit electrical energy, reduce heat loss during transmission, and improve the power transmission efficiency of flexible, corrosion-resistant robot cables.

[0039] As a further technical solution, the shielding layer material is copper wire.

[0040] Copper wire has high flexibility and can be tightly woven around the outside of the cable insulation layer to form a continuous and fitting shielding structure. It can adapt to the morphological changes of flexible and corrosion-resistant robot cables under complex working conditions such as bending and twisting, and is not prone to breakage or shielding layer damage.

[0041] As a further technical solution, the inner sheath layer material is polyurethane elastomer.

[0042] Polyurethane elastomer has high strength, high toughness and good wear resistance, which can effectively resist the impact and friction of external mechanical forces on the internal conductors, insulation layers and other structures of flexible and corrosion-resistant robot cables. During frequent bending and dragging of the cable, the inner sheath layer can remain intact, avoiding damage to the internal structure and ensuring long-term stable operation of the cable.

[0043] The working principle and beneficial effects of the present invention are:

[0044] In the present invention, the corrosion resistance of the outer sheath layer of the robot cable is improved by adding ethylene-tetrafluoroethylene copolymer and polyethylene glycol diacrylate to a composite barium sulfate. Currently, polyethylene is often used as the base material for cable sheaths, but polyethylene has poor corrosion resistance. To address this problem, corrosion-resistant substances such as barium sulfate are usually added. However, barium sulfate has poor dispersibility in the polyethylene matrix, so simply adding barium sulfate has limited improvement in the corrosion resistance of the outer sheath layer. In the present invention, polyethylene glycol diacrylate is used to compound the barium sulfate. The polyethylene glycol diacrylate molecular chains can wrap around the surface of the barium sulfate particles, reducing the tendency of the particles to agglomerate, making the barium sulfate uniformly dispersed in the polyethylene matrix, improving the dispersibility of the barium sulfate, and allowing the barium sulfate to fully function in the outer sheath layer, further improving the corrosion resistance of the outer sheath layer. DETAILED DESCRIPTION

[0045] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0046] In the following examples and comparative examples:

[0047] High-density polyethylene, model: P5510N; epoxidized soybean oil, epoxide value: 6%; polyethylene wax, model: PE-420P; paraffin, model: 58# semi-refined paraffin; barium sulfate, particle size: 1250 mesh.

[0048] Example 1

[0049] A method for preparing a flexible corrosion-resistant robot cable comprises the following steps:

[0050] S1. Extruding polyvinyl chloride material on the outside of the copper core to obtain a cable core;

[0051] S2, braiding copper wire on the outside of the cable core to obtain a shielding layer;

[0052] S3, extruding a polyurethane elastomer material on the outer side of the shielding layer to obtain an inner sheath layer;

[0053] S4, mixing 60 parts of high-density polyethylene, 5 parts of ethylene-tetrafluoroethylene copolymer HT-2004, 10 parts of ethylene-tetrafluoroethylene copolymer HT-2202, 0.5 parts of antioxidant 168, 0.9 parts of dioctyl phthalate, 0.1 parts of epoxy soybean oil, 8 parts of resorcinol bis(diphenyl phosphate), 10 parts of polyethylene glycol diacrylate composite barium sulfate, and 1 part of polyethylene wax, and extruding the mixture onto the outer side of the inner sheath layer to obtain a flexible corrosion-resistant robot cable;

[0054] The preparation method of polyethylene glycol diacrylate composite barium sulfate comprises the following steps:

[0055] A1. Add 20 g of barium chloride and 0.4 g of polyethylene glycol diacrylate (weight-average molecular weight 2000) to 1600 mL of water to obtain a mixed solution I.

[0056] A2. Add 14 g of sodium sulfate to 1600 mL of water to obtain a mixed solution II;

[0057] A3. Add the mixed solution II to the mixed solution I, stir at 40° C. and 600 rpm for 7 h, filter and dry to obtain polyethylene glycol diacrylate complexed barium sulfate.

[0058] Example 2

[0059] A method for preparing a flexible corrosion-resistant robot cable comprises the following steps:

[0060] S1. Extruding polyvinyl chloride material on the outside of the copper core to obtain a cable core;

[0061] S2, braiding copper wire on the outside of the cable core to obtain a shielding layer;

[0062] S3, extruding a polyurethane elastomer material on the outer side of the shielding layer to obtain an inner sheath layer;

[0063] S4, mixing 65 parts of high-density polyethylene, 5 parts of ethylene-tetrafluoroethylene copolymer HT-2004, 15 parts of ethylene-tetrafluoroethylene copolymer HT-2202, 1 part of antioxidant 1010, 1.7 parts of dioctyl phthalate, 0.3 parts of epoxy soybean oil, 10 parts of ammonium polyphosphate, 15 parts of polyethylene glycol diacrylate composite barium sulfate, and 1.5 parts of paraffin, and extruding the mixture around the outer side of the inner sheath layer to obtain a flexible corrosion-resistant robot cable;

[0064] The preparation method of polyethylene glycol diacrylate composite barium sulfate comprises the following steps:

[0065] A1. Add 20 g of barium chloride and 0.4 g of polyethylene glycol diacrylate (weight-average molecular weight 2000) to 1600 mL of water to obtain a mixed solution I.

[0066] A2. Add 18 g of sodium sulfate to 1600 mL of water to obtain a mixed solution II;

[0067] A3. Add the mixed solution II to the mixed solution I, stir at 800 rpm at 45° C. for 6 h, filter and dry to obtain polyethylene glycol diacrylate complexed barium sulfate.

[0068] Example 3

[0069] A method for preparing a flexible corrosion-resistant robot cable comprises the following steps:

[0070] S1. Extruding polyvinyl chloride material on the outside of the copper core to obtain a cable core;

[0071] S2, braiding copper wire on the outside of the cable core to obtain a shielding layer;

[0072] S3, extruding a polyurethane elastomer material on the outer side of the shielding layer to obtain an inner sheath layer;

[0073] S4, mixing 70 parts of high-density polyethylene, 5 parts of ethylene-tetrafluoroethylene copolymer HT-2004, 20 parts of ethylene-tetrafluoroethylene copolymer HT-2202, 1.5 parts of antioxidant 1024, 2.5 parts of dioctyl phthalate, 0.5 parts of epoxy soybean oil, 12 parts of melamine, 15 parts of polyethylene glycol diacrylate composite barium sulfate, and 2 parts of stearic acid, and extruding the mixture onto the outer side of the inner sheath layer to obtain a flexible corrosion-resistant robot cable;

[0074] The preparation method of polyethylene glycol diacrylate composite barium sulfate comprises the following steps:

[0075] A1. Add 20 g of barium chloride and 0.4 g of polyethylene glycol diacrylate (weight-average molecular weight 2000) to 1600 mL of water to obtain a mixed solution I.

[0076] A2. Add 20 g of sodium sulfate to 1600 mL of water to obtain a mixed solution II;

[0077] A3. Add the mixed solution II to the mixed solution I, stir at 50° C. and 1000 rpm for 5 h, filter and dry to obtain polyethylene glycol diacrylate complexed barium sulfate.

[0078] Example 4

[0079] The only difference between this embodiment and embodiment 2 is that the added amount of polyethylene glycol diacrylate (weight average molecular weight of 2000) is 2 g.

[0080] Example 5

[0081] The only difference between this embodiment and embodiment 2 is that the added amount of polyethylene glycol diacrylate (weight average molecular weight of 2000) is 0.8 g.

[0082] Example 6

[0083] The only difference between this embodiment and embodiment 2 is that the added amount of polyethylene glycol diacrylate (weight average molecular weight of 2000) is 1.4 g.

[0084] Example 7

[0085] The only difference between this embodiment and embodiment 6 is that the polyethylene glycol diacrylate with a weight average molecular weight of 2000 is replaced by an equal amount of polyethylene glycol diacrylate with a weight average molecular weight of 6000.

[0086] Example 8

[0087] The only difference between this embodiment and embodiment 6 is that the polyethylene glycol diacrylate with a weight average molecular weight of 2000 is replaced by an equal amount of polyethylene glycol diacrylate with a weight average molecular weight of 3000.

[0088] Example 9

[0089] The only difference between this embodiment and embodiment 6 is that the polyethylene glycol diacrylate with a weight average molecular weight of 2000 is replaced by an equal amount of polyethylene glycol diacrylate with a weight average molecular weight of 5000.

[0090] Comparative Example 1

[0091] The only difference between this comparative example and Example 1 is that the polyethylene glycol diacrylate composite barium sulfate is replaced by an equal amount of barium sulfate.

[0092] Comparative Example 2

[0093] The only difference between this comparative example and Example 1 is that polyethylene glycol diacrylate is replaced by an equal amount of polyvinyl pyrrolidone.

[0094] Comparative Example 3

[0095] The only difference between this comparative example and Example 1 is that the preparation method of polyethylene glycol diacrylate complex barium sulfate comprises the following steps: adding 22.4 g of barium sulfate and 0.4 g of polyethylene glycol diacrylate (weight-average molecular weight of 2000) to 1600 mL of water, stirring at 40°C and 600 rpm for 7 hours, filtering and drying to obtain polyethylene glycol diacrylate complex barium sulfate.

[0096] Experimental Example 1

[0097] The outer sheath of the flexible, corrosion-resistant robot cables prepared in Examples 1-6 and Comparative Examples 1-3 was cut axially, and a narrow strip was taken to prepare a dumbbell specimen with a thickness of 2 mm. The tensile strength was tested according to the method in GB / T 2951.11-2008 "General test methods for insulation and sheathing materials of electrical and optical cables - Part 11: General test methods - Thickness and dimensional measurements - Mechanical properties tests". The dumbbell specimen was then immersed in a 10 wt % HCl aqueous solution for 30 days, and the tensile strength after immersion was tested. The test results are shown in Table 1.

[0098] Table 1 Corrosion resistance test results of outer sheath layer

[0099]

[0100] As can be seen from Table 1, compared with Comparative Examples 1 to 3, the outer sheath layers of the flexible corrosion-resistant robot cables prepared in Examples 1 to 6 have a smaller change in tensile strength after the corrosion resistance test, indicating that adding polyethylene glycol diacrylate composite barium sulfate to the outer sheath layer can improve the corrosion resistance of the cable.

[0101] Experimental Example 2

[0102] The outer sheath layer of the flexible corrosion-resistant robot cable prepared in Examples 6 to 9 was cut open axially, and a narrow strip was taken to prepare a dumbbell specimen with a thickness of 2 mm. The elongation at break was tested according to the method in GB / T 2951.11-2008 "General test methods for insulation and sheath materials of electrical and optical cables - Part 11: General test methods - Thickness and dimensional measurements - Mechanical properties test". The test results are shown in Table 2.

[0103] Table 2 Test results of elongation at break of outer sheath layer

[0104]

[0105] As can be seen from Table 2, compared with Examples 6 and 7, the elongation at break of the cable outer sheath layer prepared in Examples 8 and 9 is higher, indicating that when the weight average molecular weight of polyethylene glycol diacrylate is 100,000 to 150,000, the prepared robot cable has better flexibility.

[0106] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flexible corrosion-resistant robot cable, characterized in that: From the inside to the outside, it includes a cable core, a shielding layer, an inner sheath layer, and an outer sheath layer. The cable core includes a conductor and an insulation layer from the inside to the outside. The raw materials of the outer sheath layer include the following components in parts by weight: 60-70 parts of high-density polyethylene, 15-25 parts of ethylene-tetrafluoroethylene copolymer, 0.5-1.5 parts of antioxidant, 1-3 parts of plasticizer, 8-12 parts of flame retardant, 10-20 parts of polyethylene glycol diacrylate composite barium sulfate, and 1-2 parts of lubricant; the raw materials of the polyethylene glycol diacrylate composite barium sulfate include polyethylene glycol diacrylate, barium chloride, and sodium sulfate; The preparation method of the polyethylene glycol diacrylate composite barium sulfate comprises the following steps: A1. Adding barium chloride and polyethylene glycol diacrylate into water to obtain a mixed solution I; A2, adding sodium sulfate to water to obtain a mixed solution II; A3, adding mixed solution II to mixed solution I, filtering and drying to obtain polyethylene glycol diacrylate composite barium sulfate; The added amount of the polyethylene glycol diacrylate is 4% to 7% of the mass of the barium chloride.

2. A flexible corrosion-resistant robot cable according to claim 1, characterized in that: The mass ratio of the barium chloride to the sodium sulfate is 1:0.7~1.

3. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The weight average molecular weight of the polyethylene glycol diacrylate is 3000-5000.

4. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The ethylene-tetrafluoroethylene copolymer includes ethylene-tetrafluoroethylene copolymer HT-2004 and ethylene-tetrafluoroethylene copolymer HT-2202 in a mass ratio of 1:2-4.

5. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The antioxidant includes one or more of antioxidant 168 , antioxidant 1010 , and antioxidant 1024 .

6. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The plasticizer includes dioctyl phthalate and epoxidized soybean oil; the mass ratio of the dioctyl phthalate to the epoxidized soybean oil is 5-9:

1.

7. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The lubricant includes one or more of polyethylene wax, paraffin wax, and stearic acid.

8. The flexible corrosion-resistant robot cable according to claim 1, characterized in that: The flame retardant includes one or more of resorcinol bis(diphenyl phosphate), ammonium polyphosphate, and melamine.

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