Marine cable guide steel hole seawater corrosion resistant material and preparation method thereof
By synergistically modifying the guide steel holes of marine cables and introducing organic small molecule functional regulators, a composite protection system was constructed, which solved the corrosion failure problem of guide steel holes of marine cables in complex marine environments and improved seawater corrosion resistance and service stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING TANGDA FOUNDING CO LTD
- Filing Date
- 2026-03-10
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies are insufficient to effectively protect the guide steel holes of marine cables in complex marine environments, especially under the influence of high salinity seawater, humid air, and cable friction, leading to corrosion failure. Furthermore, existing anti-corrosion coatings have insufficient adhesion, making it difficult to balance corrosion resistance and service reliability.
By employing synergistic modification of porous steel matrix materials, combined with organic small molecule functional regulators, corrosion inhibitors, interface stabilizers, and lubricating and wear-resistant additives, a composite protection system is constructed through a stepwise preparation process. This results in a stable modified structure that enhances seawater corrosion resistance and long-term stability.
It significantly improves the seawater corrosion resistance and service reliability of steel holes, extends the service life of marine cables and related structures, and exhibits excellent wear resistance and interface stability.
Smart Images
Figure CN122013167A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of marine engineering materials and metal corrosion protection technology, specifically relating to a steel hole corrosion-resistant material for marine cable guide structures and its preparation method. Background Technology
[0002] Marine cable guide steel holes are widely used in marine engineering fields such as ship mooring, towing, and deck operations. They are typically installed on the hull deck, sides, or mooring structures to guide cables through and withstand long-term tensile, frictional, and impact loads. During actual service, these steel holes are constantly exposed to high-salinity seawater, humid air, and cyclical wet-dry conditions, coupled with repeated friction from the cables. This makes them highly susceptible to synergistic failures from multiple corrosion forms, including pitting corrosion, crevice corrosion, and abrasive corrosion. This results in increased surface roughness and decreased dimensional accuracy of the steel holes, further accelerating cable wear and shortening the service life of marine cables and related structures.
[0003] In existing technologies, the problem of seawater corrosion resistance in marine steel holes is typically addressed by using stainless steel, replacing the steel with corrosion-resistant alloy steel, or applying an anti-corrosion coating to the surface of the steel hole. However, simply increasing the alloy content to improve corrosion resistance is not only costly but also has limited effectiveness in suppressing localized corrosion. Furthermore, traditional anti-corrosion coatings lack adhesion and wear resistance on the inner walls and edges of steel holes, making them prone to peeling or failure under long-term friction from cables and seawater erosion, thus failing to achieve long-term stable protection.
[0004] Existing anti-corrosion technologies mostly focus on single anti-corrosion mechanisms, lacking a systematic design to address the synergistic effects of multiple corrosive factors in the complex service environment of steel holes. Particularly in terms of surface modification methods for steel holes, most are simple physical coatings or single chemical treatments, making it difficult to form a stable, dense, and self-stabilizing protective structure on the steel substrate surface. Furthermore, there is limited research and application of introducing small organic molecules for corrosion control in marine cable guide steel holes, making it difficult to simultaneously achieve corrosion resistance, wear resistance, and long-term service stability.
[0005] Therefore, there is an urgent need for a marine cable guide steel hole resistant material that can achieve long-term seawater corrosion resistance and service reliability in complex marine environments by surface treatment of steel hole matrix through innovative synergistic modification methods and combined with organic small molecule functional regulation. Summary of the Invention
[0006] To overcome the challenges of corrosion failure, insufficient protective stability, and the difficulty of balancing corrosion resistance and service reliability in existing anti-corrosion methods for marine cable guide steel holes under long-term seawater environments and friction conditions, as mentioned in the background art, this invention aims to provide a seawater corrosion-resistant material for marine cable guide steel holes and its preparation method. This is achieved by synergistically modifying the steel hole matrix and introducing organic small-molecule functional regulators and various additives onto its surface to construct a stable composite protective system. This invention uses a material system based on synergistically modified steel hole matrix materials, combined with organic small-molecule functional regulators, corrosion inhibitors, interface stabilizers, and lubricating and wear-resistant additives. A step-by-step preparation process is employed to achieve synergistic protection of the steel hole surface. This invention effectively improves the seawater corrosion resistance and long-term service stability of steel holes in complex marine service environments.
[0007] The objective of this invention can be achieved through the following technical solutions: A seawater corrosion-resistant material for guiding steel holes in marine cables, comprising the following components in parts by weight: 92-99 parts of a synergistically modified steel hole matrix material; 0.1-2.0 parts of an organic small molecule functional regulator; 0.05-1.0 parts of a corrosion inhibitor; 0.05-1.0 parts of an interface stabilizing agent; and 0.1-2.0 parts of a lubricating and wear-resistant agent. The synergistically modified steel hole matrix material is obtained by synergistically modifying the steel hole matrix with polyphenolic interface complexes and nitrogen-containing organosilicon compounds, enabling the two to construct a stable modified structure on the steel hole surface through the synergistic effect of complexation adsorption and chemical bonding, thus forming a steel hole matrix material with an innovative modification method. The organic small molecule functional regulator is gallic acid.
[0008] Optionally, the synergistically modified steel pore matrix material comprises the following components in parts by weight: 90-98 parts steel pore matrix; 0.5-3.0 parts tannic acid; 0.5-2.5 parts 3-aminopropyltriethoxysilane; and 0.05-0.8 parts ferric chloride.
[0009] Optionally, the preparation method of the synergistically modified steel porous matrix material includes the following steps: (1) Pre-treat the steel hole substrate by sequentially performing degreasing, derusting and cleaning to ensure that the surface of the steel hole is in a clean and activated state. (2) Tannic acid, 3-aminopropyltriethoxysilane and ferric chloride are added to a solvent to form a synergistic modification system under stirring conditions. The synergistic modification system is then brought into contact with the treated steel pore matrix to perform synergistic modification treatment on the surface of the steel pore matrix. (3) The steel pore matrix after synergistic modification is cleaned, dried and cured to obtain synergistic modified steel pore matrix material.
[0010] Optionally, the reaction conditions in step (1) are as follows: at room temperature, the oil is removed by alkaline degreasing solution for 5 to 20 minutes, followed by rust removal by acidic solution for 3 to 15 minutes, and then rinsed with deionized water until neutral.
[0011] Optionally, the reaction conditions in step (2) are as follows: tannic acid, 3-aminopropyltriethoxysilane and ferric chloride are added to a solvent and stirred at 20-40°C for 10-60 min to form a synergistic modification system. Then, the steel hole substrate is subjected to synergistic modification treatment by spraying for 5-30 min.
[0012] Optionally, the reaction conditions in step (3) are to dry and cure the steel pore matrix after synergistic modification at 40-120°C for 10-120 min.
[0013] Optionally, the corrosion inhibitor is a mixture of benzotriazole and sodium molybdate in a mass ratio of 1:0.5 to 1:2; the interface stabilizing agent is a mixture of polyvinylpyrrolidone and polyethylene glycol in a mass ratio of 1:1 to 1:3; and the lubricating and wear-resistant agent is a mixture of polytetrafluoroethylene micro powder and molybdenum disulfide in a mass ratio of 1:0.2 to 1:1.
[0014] Optionally, a method for preparing a seawater corrosion-resistant material for guiding steel holes in marine cables, the method comprising the following steps: S1 provides a synergistically modified steel hole matrix material and cleans its surface; S2, organic small molecule functional regulators, corrosion inhibitors, interface stabilizers and lubricating and wear-resistant additives are mixed to obtain a composite functional treatment system, and the composite functional treatment system is applied to the surface of the steel porous matrix material for synergistic modification. S3, the treated synergistically modified steel hole matrix material is dried and cured to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0015] Optionally, the reaction conditions in step S2 are as follows: the organic small molecule functional regulator, corrosion inhibitor, interface stabilizer and lubricant and wear-resistant agent are mixed at room temperature to 40°C for 5 to 30 minutes, and the resulting composite functional treatment system is applied to the surface of the synergistically modified steel porous matrix material by spraying or dip coating.
[0016] Optionally, the reaction conditions for step S3 are to dry and cure the treated synergistically modified steel pore matrix material at 40–120°C for 10–120 min.
[0017] The beneficial effects of this invention are: This invention directly imparts a synergistic modification to the steel pore matrix material, enabling polyphenolic interfacial complexes and nitrogen-containing organosilicon compounds to synergistically construct a stable modified structure on the steel pore surface. This modification method is not a simple superposition of existing single surface treatment methods, but rather innovative in its interface construction path and modification mechanism. Simultaneously, gallic acid is introduced as an organic small molecule functional regulator based on the synergistic modification of the steel pore matrix material, allowing it to participate in the formation of the overall protective system. This significantly enhances the steel pore's ability to inhibit chloride ion erosion and localized corrosion in seawater environments. Furthermore, through the synergistic effect of corrosion inhibitors, interfacial stabilizers, and lubricating and wear-resistant agents, the steel pore maintains excellent seawater corrosion resistance and structural stability during long-term marine service and friction conditions, thereby effectively extending the service life of marine cable guide steel pores and related structures. Attached Figure Description
[0018] The invention will now be further described with reference to the accompanying drawings.
[0019] Figure 1 Comparison of infrared spectra of porous steel matrix material and synergistically modified porous steel matrix material; Figure 2 Comparison of corrosion weight loss results for samples with different formulation ratios; Figure 3 A comparison of the maximum pitting depth and wear depth of samples with different formulations; Figure 4 A comparison chart showing the interface adhesion retention rate of samples with different ratios. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments. However, the present invention is not limited to the following embodiments. Equivalent adjustments made without departing from the spirit and essence of the present invention should also be considered to fall within the protection scope of the present invention.
[0021] Example 1: This embodiment verifies that when the dosage of each component and the reaction conditions are all within the lower limit of the scope defined in the claims, the prepared marine cable guide steel hole-resistant seawater corrosion-resistant material still has stable formability and basic seawater corrosion resistance.
[0022] S1, Preparation of synergistically modified steel porous matrix material: Take 90 parts of steel hole substrate, first degrease with alkaline degreasing solution at room temperature for 5 minutes, then derust with acidic solution for 3 minutes, and rinse with deionized water until neutral; Add 0.5 parts of tannic acid, 0.5 parts of 3-aminopropyltriethoxysilane and 0.05 parts of ferric chloride to the solvent and stir at 20°C for 10 min to form a synergistic modification system; The synergistic modification system was applied to the surface of a steel pore matrix by spraying. After treatment for 5 minutes, the matrix was cleaned and dried and cured at 40°C for 10 minutes to obtain the synergistically modified steel pore matrix material. S2, Composite Function Processing: Mix 0.1 parts gallic acid, 0.05 parts corrosion inhibitor, 0.05 parts interface stabilizer and 0.1 parts lubricating and wear-resistant agent at room temperature for 5 minutes, and apply the mixture to the surface of the synergistically modified steel pore matrix material by spraying. S3, Drying and curing: The steel hole substrate treated with S2 was dried and cured at 40°C for 10 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0023] Example 2: This embodiment verifies the overall balance between seawater corrosion resistance and processing stability of the material when the dosage of each component and the reaction conditions are all within the range defined in the claims.
[0024] S1, Preparation of synergistically modified steel porous matrix material: Take 94 parts of steel hole substrate, first degrease with alkaline degreasing solution at room temperature for 10 min, then derust with acidic solution for 8 min, and rinse with deionized water until neutral; add 1.5 parts of tannic acid, 1.5 parts of 3-aminopropyltriethoxysilane and 0.3 parts of ferric chloride to solvent, stir at 30℃ for 30 min to form a synergistic modification system; spray the surface of the steel hole substrate for synergistic modification treatment for 15 min, then clean, and dry and cure at 80℃ for 60 min to obtain synergistically modified steel hole substrate material; according to Figure 1 The infrared spectrum comparison shows that before modification, the steel porous matrix only exhibited weak absorption peaks at approximately 3400 cm⁻¹ and 1630 cm⁻¹, mainly due to surface adsorbed water and a small amount of hydroxyl vibrations, resulting in a weak overall infrared response. After synergistic modification, several new absorption peaks appeared in the spectrum, among which the broad peak at 3200–3600 cm⁻¹ was significantly enhanced, indicating the introduction of polyphenolic hydroxyl and amino groups. A C–H stretching vibration peak appeared near 2930 cm⁻¹, and carbonyl and aromatic ring skeletal vibration peaks appeared in the 1715 cm⁻¹ and 1600–1500 cm⁻¹ ranges, indicating the successful introduction of organic components. At the same time, significant Si–O–Si absorption appeared in the 1100–1000 cm⁻¹ range, indicating the formation of a stable organosilicon network structure. These changes indicate that a stable synergistic modification layer was formed on the surface of the steel porous matrix. S2, Composite Function Processing: Mix 1.0 part gallic acid, 0.5 part corrosion inhibitor, 0.5 part interface stabilizer and 1.0 part lubricating and wear-resistant agent at 25°C for 15 min and apply the mixture to the surface of the synergistically modified steel pore matrix material by spraying. S3, Drying and curing: The treated steel hole substrate was dried and cured at 80°C for 60 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0025] Example 3: This embodiment verifies the seawater corrosion resistance and service reliability of the material under high-strength protection conditions when the dosage of each component and the reaction conditions are all within the upper limit of the scope defined in the claims.
[0026] S1, Preparation of synergistically modified steel porous matrix material: Take 98 parts of steel hole substrate, first degrease with alkaline degreasing solution at room temperature for 20 min, then derust with acidic solution for 15 min, and rinse with deionized water until neutral; add 3.0 parts of tannic acid, 2.5 parts of 3-aminopropyltriethoxysilane and 0.8 parts of ferric chloride to solvent, stir at 40℃ for 60 min to form a synergistic modification system; spray the surface of steel hole substrate for synergistic modification treatment for 30 min, then clean, and dry and cure at 120℃ for 120 min to obtain synergistically modified steel hole substrate material; S2, Composite Function Processing: 2.0 parts of gallic acid, 1.0 part of corrosion inhibitor, 1.0 part of interface stabilizer and 2.0 parts of lubricating and wear-resistant agent were mixed at 40°C for 30 minutes and then applied to the surface of the synergistically modified steel pore matrix material by spraying. S3, Drying and curing: The treated steel hole substrate was dried and cured at 120°C for 120 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0027] Comparative Example 1: This comparative example verifies the effect of using only polyphenolic interfacial complexes to modify a porous steel matrix on the material's resistance to seawater corrosion and its processing stability.
[0028] S1, Preparation of synergistically modified steel porous matrix material: Take 94 parts of steel hole substrate, first degrease it with alkaline degreasing solution at room temperature for 10 min, then derust it with acidic solution for 8 min, and rinse it with deionized water until neutral; add 1.5 parts of tannic acid and 0.3 parts of ferric chloride to the solvent, stir at 30℃ for 30 min to form a modified system; apply the modified steel hole substrate surface by spraying for 15 min, then clean it, and dry and cure it at 80℃ for 60 min to obtain the modified steel hole substrate material; S2 composite function processing: 1.0 part gallic acid, 0.5 part corrosion inhibitor, 0.5 part interface stabilizer and 1.0 part lubricating and wear-resistant agent were mixed at 25°C for 15 min and then applied to the surface of the modified steel hole matrix material by spraying. S3 Drying and Curing: The treated steel hole substrate was dried and cured at 80°C for 60 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0029] Comparative Example 2: This comparative example verifies the effect of using only nitrogen-containing organosilicon compounds to modify the steel porous matrix on the material's resistance to seawater corrosion and processing stability.
[0030] S1, Preparation of synergistically modified steel porous matrix material: Take 94 parts of steel hole substrate, first degrease it with alkaline degreasing solution at room temperature for 10 min, then derust it with acidic solution for 8 min, and wash it with deionized water until neutral; add 1.5 parts of 3-aminopropyltriethoxysilane and 0.3 parts of ferric chloride to the solvent, stir at 30℃ for 30 min to form a modified system; spray the modified steel hole substrate surface for 15 min, then clean it, and dry and cure it at 80℃ for 60 min to obtain the modified steel hole substrate material; S2, Composite Function Processing: 1.0 part gallic acid, 0.5 part corrosion inhibitor, 0.5 part interface stabilizer and 1.0 part lubricating and wear-resistant agent were mixed at 25°C for 15 min and then applied to the surface of the modified steel hole matrix material by spraying. S3, Drying and curing: The treated steel hole substrate was dried and cured at 80°C for 60 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0031] Comparative Example 3: This comparative study verifies the effect of gallic acid, an organic small molecule functional regulator, on the material's resistance to seawater corrosion and its processing stability without the addition of gallic acid.
[0032] S1, Preparation of synergistically modified steel porous matrix material: Take 94 parts of steel hole substrate, first degrease with alkaline degreasing solution at room temperature for 10 min, then derust with acidic solution for 8 min, and rinse with deionized water until neutral; add 1.5 parts of tannic acid, 1.5 parts of 3-aminopropyltriethoxysilane and 0.3 parts of ferric chloride to solvent, stir at 30℃ for 30 min to form a synergistic modification system; spray the surface of steel hole substrate for synergistic modification treatment for 15 min, then clean, and dry and cure at 80℃ for 60 min to obtain synergistically modified steel hole substrate material; S2, Composite Function Processing: Mix 0.5 parts of corrosion inhibitor, 0.5 parts of interface stabilizer and 1.0 part of lubricating and wear-resistant agent at 25°C for 15 min and apply the mixture to the surface of the synergistically modified steel pore matrix material by spraying. S3, Drying and curing: The treated steel hole substrate was dried and cured at 80°C for 60 minutes to obtain a seawater corrosion resistant material for marine cable guide steel holes.
[0033] Performance testing: 1. Test method for seawater corrosion resistance The marine cable guide steel hole samples prepared in the examples and comparative examples were placed in an artificial seawater environment for immersion tests. The artificial seawater was prepared according to the conventional salinity of the marine environment. During the immersion process, a constant temperature was maintained, and the surface condition of the samples was observed and recorded regularly. By comparing the corrosion morphology, degree of rust and integrity of the sample surface, the differences in corrosion resistance of different samples in the long-term seawater environment were evaluated.
[0034] 2. Test methods for resistance to pitting and localized corrosion The examples and comparative samples were placed in a corrosive medium containing chloride ions and subjected to cyclic tests under simulated marine wet and dry conditions. The occurrence of localized corrosion was accelerated by periodically immersing and exposing the samples to air. After the test, the depth of pitting corrosion on the sample surface was compared and analyzed to evaluate the ability of different modification methods to inhibit localized corrosion.
[0035] 3. Test methods for wear resistance and friction stability By simulating cable friction conditions, reciprocating friction tests were conducted on the examples and comparative samples. Under the same load and number of friction cycles, the cable material was subjected to continuous friction with the surface of the steel hole. By observing the wear, surface integrity, and protective layer retention of the steel hole surface before and after the test, the wear resistance and friction stability of the material under actual service conditions were evaluated.
[0036] 4. Interface stability and adhesion reliability test methods The examples and comparative samples were subjected to alternating hot and cold cycles and humid and hot environments to simulate the temperature and humidity changes in the marine environment. After multiple cycles, the interface stability and long-term adhesion reliability of the synergistic modified steel porous matrix and composite protection system in complex environments were evaluated by observing whether peeling, flaking, cracking or instability of the protective layer appeared on the sample surface.
[0037] Table 1. Test results of comprehensive performance of different samples in single indicators
[0038] As shown in Table 1, different samples exhibited significant differences in seawater corrosion resistance, localized corrosion resistance, wear resistance, and interface stability. Figure 2 Example 2 showed the best performance in all performance indicators, with a corrosion weight loss of only 0.8 mg / cm², which was significantly lower than 1.5 mg / cm² of Example 1 and 1.7 mg / cm² of Example 3. It was also significantly better than Comparative Examples 1, 2 and 3, whose corrosion weight losses were 4.8 mg / cm², 6.2 mg / cm² and 3.9 mg / cm², respectively. This indicates that Example 2 has a stronger ability to inhibit overall corrosion in a seawater environment.
[0039] Regarding resistance to localized corrosion, Figure 3 The maximum pitting depth in Example 2 was 6 μm, significantly smaller than the 12 μm in Example 1 and the 14 μm in Example 3, while the maximum pitting depths in Comparative Examples 1, 2, and 3 reached 38 μm, 55 μm, and 30 μm, respectively. These results indicate that Example 2 demonstrates a more significant advantage in suppressing pitting and localized corrosion compared to schemes involving single modification or lacking organic small molecule regulation.
[0040] In the wear resistance test, Figure 3 The wear depth of Example 2 was 8 μm, which was lower than 16 μm of Example 1 and 18 μm of Example 3, and significantly smaller than 42 μm of Comparative Example 1, 63 μm of Comparative Example 2 and 36 μm of Comparative Example 3. This indicates that Example 2 can effectively reduce the wear of the steel hole surface under simulated cable friction conditions, which is beneficial to improving its wear resistance stability in actual service.
[0041] Regarding interface stability, Figure 4 The interface adhesion retention rate of Example 2 reached 98%, which was significantly higher than that of Example 1 (92%) and Example 3 (90%), while the interface adhesion retention rates of Comparative Examples 1, 2, and 3 were only 65%, 48%, and 70%, respectively. This result indicates that the protective system formed in Example 2 has higher interface stability and adhesion reliability under cold and hot and humid heat cycling conditions.
[0042] In summary, all the embodiments demonstrated superior overall performance compared to the comparative examples. Among them, Example 2 achieved the best performance in key indicators such as seawater corrosion resistance, pitting corrosion resistance, wear resistance, and interface stability. This indicates that the material system constructed by synergistically modifying the porous steel matrix material and combining it with organic small molecule functional regulators has significant advantages in terms of comprehensive protective performance and long-term service reliability.
Claims
1. A seawater corrosion-resistant material for guide steel holes in marine cables, characterized in that, The material comprises the following components in parts by weight: 92-99 parts of synergistically modified steel porous matrix material; 0.1-2.0 parts of organic small molecule functional regulator; 0.05-1.0 parts of corrosion inhibitor; 0.05-1.0 parts of interface stabilizing agent; and 0.1-2.0 parts of lubricating and wear-resistant agent. The synergistically modified steel porous matrix material is formed by synergistically modifying the steel porous matrix with polyphenolic interface complexes and nitrogen-containing organosilicon compounds, resulting in a steel porous matrix material with an innovative modification method. The organic small molecule functional regulator is gallic acid.
2. The seawater corrosion resistant material for guide steel holes in marine cables according to claim 1, characterized in that, The synergistically modified steel pore matrix material comprises the following components in parts by weight: 90-98 parts steel pore matrix; 0.5-3.0 parts tannic acid; 0.5-2.5 parts 3-aminopropyltriethoxysilane; and 0.05-0.8 parts ferric chloride.
3. A seawater corrosion-resistant material for guide steel holes in marine cables according to claim 1 or 2, characterized in that, The preparation method of the synergistically modified steel porous matrix material includes the following steps: (1) Pre-treat the steel hole substrate by sequentially performing degreasing, rust removal and cleaning; (2) Tannic acid, 3-aminopropyltriethoxysilane and ferric chloride are added to a solvent and a synergistic modification system is formed under stirring conditions to synergistically modify the surface of the steel porous substrate. (3) The steel pore matrix after synergistic modification is cleaned, dried and cured to obtain synergistic modified steel pore matrix material.
4. The seawater corrosion resistant material for guide steel holes in marine cables according to claim 3, characterized in that, The reaction conditions for step (1) are as follows: at room temperature, the oil is removed by alkaline degreasing solution for 5 to 20 minutes, followed by rust removal by acidic solution for 3 to 15 minutes, and then rinsed with deionized water until neutral.
5. The seawater corrosion resistant material for guide steel holes in marine cables according to claim 3, characterized in that, The reaction conditions for step (2) are as follows: tannic acid, 3-aminopropyltriethoxysilane and ferric chloride are added to a solvent and stirred at 20-40°C for 10-60 min to form a synergistic modification system. Then, the steel hole substrate is subjected to synergistic modification treatment for 5-30 min by spraying.
6. The seawater corrosion resistant material for guide steel holes in marine cables according to claim 3, characterized in that, The reaction conditions for step (3) are to dry and cure the steel pore matrix after synergistic modification at 40-120°C for 10-120 min.
7. The seawater corrosion resistant material for guide steel holes in marine cables according to claim 1, characterized in that, The corrosion inhibitor is a mixture of benzotriazole and sodium molybdate in a mass ratio of 1:0.5 to 1:2; the interface stabilizing agent is a mixture of polyvinylpyrrolidone and polyethylene glycol in a mass ratio of 1:1 to 1:3; and the lubricating and wear-resistant agent is a mixture of polytetrafluoroethylene micro powder and molybdenum disulfide in a mass ratio of 1:0.2 to 1:
1.
8. A method for preparing a seawater corrosion-resistant material for guide steel holes in marine cables, characterized in that, The preparation method includes the following steps: S1 provides a synergistically modified steel hole matrix material and cleans its surface; S2, organic small molecule functional regulators, corrosion inhibitors, interface stabilizers and lubricating and wear-resistant additives are mixed to obtain a composite functional treatment system, and the composite functional treatment system is applied to the surface of the steel porous matrix material for synergistic modification. S3, the treated synergistically modified steel hole matrix material is dried and cured to obtain a seawater corrosion resistant material for marine cable guide steel holes.
9. The method for preparing a seawater corrosion resistant material for guide steel holes in marine cables according to claim 8, characterized in that, The reaction conditions for step S2 are as follows: the organic small molecule functional regulator, corrosion inhibitor, interface stabilizer and lubricant and wear-resistant agent are mixed at room temperature to 40°C for 5 to 30 minutes, and the resulting composite functional treatment system is applied to the surface of the synergistically modified steel porous matrix material by spraying.
10. A method for preparing a seawater corrosion-resistant material for guiding steel holes in marine cables according to claim 8, characterized in that, The reaction conditions for step S3 are to dry and cure the treated synergistically modified steel porous matrix material at 40–120°C for 10–120 min.