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CN-122013167-A - Marine cable guide steel hole seawater corrosion resistant material and preparation method thereof

CN122013167ACN 122013167 ACN122013167 ACN 122013167ACN-122013167-A

Abstract

The invention discloses a marine cable guide steel hole seawater corrosion resistant material and a preparation method thereof, the material comprises a synergistically modified steel pore matrix material, an organic micromolecular function regulator, a corrosion inhibition auxiliary agent, an interface stabilization auxiliary agent and a lubricating and wear-resisting auxiliary agent. The synergistic modified steel hole matrix material is obtained by carrying out synergistic interface modification on a steel hole matrix by using a polyphenol interface complexing substance and a nitrogenous organic silicon compound, the modification mode is self-creative, and the organic micromolecular function regulator is gallic acid. By introducing a composite functional treatment system on the surface of the synergistically modified steel hole matrix material, the obtained steel hole shows excellent seawater corrosion resistance, local corrosion resistance, wear resistance stability and interface adhesion reliability under seawater environment and friction working conditions. The invention has simple preparation process and stable protection effect, and is suitable for long-term marine service environment of the marine cable guide structure.

Inventors

  • TANG RONGBIN
  • ZENG FANFU
  • CHEN BING

Assignees

  • 南京汤达新型材料制造有限公司

Dates

Publication Date
20260512
Application Date
20260310

Claims (10)

  1. 1. The marine cable guide steel hole seawater corrosion resistant material is characterized by comprising, by weight, 92-99 parts of a synergistic modified steel hole base material, 0.1-2.0 parts of an organic small molecule function regulator, 0.05-1.0 parts of a corrosion inhibition auxiliary agent, 0.05-1.0 parts of an interface stabilizing auxiliary agent and 0.1-2.0 parts of a lubricating wear-resistant auxiliary agent, wherein the synergistic modified steel hole base material is prepared by carrying out synergistic interface modification on a steel hole base body through a polyphenol interface complexing substance and a nitrogenous organic silicon compound, so that the steel hole base material with a modification mode is creative, and the organic small molecule function regulator is gallic acid.
  2. 2. The marine cable guide steel hole seawater corrosion resistant material is characterized by comprising, by weight, 90-98 parts of a steel hole matrix, 0.5-3.0 parts of tannic acid, 0.5-2.5 parts of 3-aminopropyl triethoxysilane and 0.05-0.8 part of ferric chloride.
  3. 3. The marine cable guide steel hole seawater corrosion resistant material as claimed in claim 1 or 2, wherein the preparation method of the synergetically modified steel hole base material comprises the following steps: (1) Preprocessing the steel hole matrix, and sequentially finishing oil removal, rust removal and cleaning; (2) Adding tannic acid, 3-aminopropyl triethoxysilane and ferric chloride into a solvent, forming a synergistic modification system under the stirring condition, and carrying out synergistic modification treatment on the surface of the steel hole matrix; (3) And cleaning, drying and curing the steel hole matrix subjected to the synergistic modification treatment to obtain the synergistic modified steel hole matrix material.
  4. 4. The marine cable guide steel hole seawater corrosion resistant material according to claim 3, wherein the reaction condition of the step (1) is that under the room temperature condition, an alkaline degreasing solution is adopted to remove oil for 5-20 min, then an acidic solution is adopted to remove rust for 3-15 min, and deionized water is used for cleaning to be neutral.
  5. 5. The marine cable guide steel hole seawater corrosion resistant material according to claim 3, wherein the reaction condition of the step (2) is that tannic acid, 3-aminopropyl triethoxysilane and ferric chloride are added into a solvent, stirred for 10-60 min at 20-40 ℃ to form a synergistic modification system, and then the steel hole substrate is subjected to synergistic modification treatment for 5-30 min in a spraying mode.
  6. 6. The marine cable guide steel hole seawater corrosion resistant material according to claim 3, wherein the reaction condition of the step (3) is that the steel hole substrate subjected to the synergistic modification treatment is dried and cured for 10-120 min under the condition of 40-120 ℃.
  7. 7. The marine cable guide steel hole seawater corrosion resistant material is characterized in that the corrosion inhibition auxiliary agent is formed by mixing benzotriazole and sodium molybdate according to the mass ratio of 1:0.5-1:2, the interface stabilizing auxiliary agent is formed by mixing polyvinylpyrrolidone and polyethylene glycol according to the mass ratio of 1:1-1:3, and the lubricating wear resistant auxiliary agent is formed by mixing polytetrafluoroethylene micro powder and molybdenum disulfide according to the mass ratio of 1:0.2-1:1.
  8. 8. The preparation method of the marine cable guide steel hole seawater corrosion resistant material is characterized by comprising the following steps of: s1, providing a synergic modified steel hole matrix material, and cleaning the surface of the synergic modified steel hole matrix material; s2, mixing an organic micromolecular function regulator, a corrosion inhibition auxiliary agent, an interface stabilizing auxiliary agent and a lubricating and wear-resisting auxiliary agent to obtain a composite function treatment system, and applying the composite function treatment system to the surface of the synergic modified steel hole matrix material; and S3, drying and curing the treated synergic modified steel hole base material to obtain the marine cable guide steel hole seawater corrosion resistant material.
  9. 9. The preparation method of the marine cable guide steel hole seawater corrosion resistant material is characterized in that the reaction condition of the step S2 is that an organic small molecule function regulator, a corrosion inhibition auxiliary agent, an interface stabilization auxiliary agent and a lubricating wear-resistant auxiliary agent are mixed for 5-30 min at the temperature of room temperature to 40 ℃, and the obtained composite function treatment system is applied to the surface of a synergic modified steel hole base material in a spraying mode.
  10. 10. The preparation method of the marine cable guide steel hole seawater corrosion resistant material is characterized in that the reaction condition of the step S3 is that the treated synergic modified steel hole base material is dried and cured for 10-120 min at 40-120 ℃.

Description

Marine cable guide steel hole seawater corrosion resistant material and preparation method thereof Technical Field The invention belongs to the technical field of ocean engineering materials and metal corrosion prevention, and particularly relates to a steel hole seawater corrosion resistant material for a marine cable guiding structure and a preparation method thereof. Background Marine cable guide steel holes are widely used in the field of marine engineering for vessel mooring, towing and deck operations, and are typically provided in the deck, side or mooring structure of a hull for guiding the cable through and carrying long-term tensile, frictional and impact loads. In the actual service process, the steel holes are in a high salinity seawater environment, moist air and periodical dry-wet alternating condition for a long time, and meanwhile, the repeated friction action of the cables is accompanied, so that the synergistic failure of various corrosion forms such as pitting corrosion, crevice corrosion, abrasion corrosion and the like is very easy to occur, the surface roughness of the steel holes is increased, the dimensional accuracy is reduced, the abrasion of the cables is further increased, and the service lives of the marine cables and related structures are shortened. In the prior art, aiming at the seawater corrosion resistance problem of the marine steel hole, a stainless steel material, a corrosion-resistant alloy steel replacement or an anti-corrosion coating is usually applied to the surface of the steel hole for protection. However, the improvement of corrosion resistance by simply increasing the alloy content has high cost and limited inhibition effect on local corrosion, while the traditional anti-corrosion coating has insufficient adhesive force and wear resistance on the inner wall and edge parts of the steel hole, and is easy to fall off or lose efficacy under the long-term friction and seawater scouring action of the cable, so that the long-term stable protection effect is difficult to realize. The prior art focuses on a single corrosion prevention mechanism, lacks systematic design for the synergistic effect of various corrosion factors under the complex service environment of the steel hole, particularly, in the aspect of the surface modification mode of the steel hole, is mainly simple in physical coverage or single chemical treatment, and is difficult to form a stable, compact and self-stabilization protective structure on the surface of a steel substrate. Meanwhile, in the prior art, organic small molecules are introduced into the steel holes for guiding the ship mooring ropes for corrosion regulation, so that the research and the application are less, and the corrosion resistance, the wear resistance and the long-term service stability are difficult to be considered. Therefore, there is a need for a marine cable-guiding steel-made hole seawater corrosion resistant material capable of realizing long-term seawater corrosion resistance and service reliability in a complex marine environment by performing surface treatment on a steel-made hole substrate in an innovative synergistic modification mode and combining an organic small molecule function regulation and control means. Disclosure of Invention In order to overcome the problems that the marine cable guide steel hole is easy to generate corrosion failure, insufficient in protection stability and difficult to consider corrosion resistance and service reliability in the existing corrosion prevention mode under the long-term seawater environment and friction working condition in the background technology, the invention aims to provide the marine cable guide steel hole seawater corrosion resistant material and the preparation method thereof, and a stable composite protection system is constructed by carrying out cooperative modification on a steel hole substrate and introducing an organic micromolecular function regulator and various auxiliary agents on the surface of the steel hole substrate. The invention adopts a material system based on a synergistically modified steel hole matrix material and matched with an organic micromolecular function regulator, a corrosion inhibition auxiliary agent, an interface stabilization auxiliary agent and a lubricating and wear-resisting auxiliary agent, and realizes the synergistic protection of the steel hole surface through a step-by-step preparation process. The invention effectively improves the seawater corrosion resistance and long-term use stability of the steel hole under the complex marine service environment. The aim of the invention can be achieved by the following technical scheme: The marine cable guide steel hole seawater corrosion resistant material comprises, by weight, 92-99 parts of a synergistic modified steel hole base material, 0.1-2.0 parts of an organic small molecule function regulator, 0.05-1.0 parts of a corrosion inhibition auxiliary agent, 0.05-1.0 parts of an interf