A rust preventive for transmission tower foot, and its preparation method and application

Abstract

The present invention relates to the technical field of metal protection, in particular to a rust preventive for a transmission tower foot, a preparation method and an application thereof. The invention discloses a rust preventive for a transmission tower foot. The rust preventive comprises the following components, measured by mass: 850-950 parts of metal cutting oil waste liquid, 65-85 parts of a penetration aid, 75-95 parts of an anti-corrosion agent, 150-180 parts of an anti-seepage agent, 300-400 parts of jackfruit resin, 60-90 parts of an expander, 78-98 parts of a water repellent, and 15-35 parts of a viscosity reducer. The rust preventive, which is formed by combining the metal cutting oil waste liquid, the penetration aid, the anti-corrosion agent, the anti-seepage agent, the jackfruit resin, the expander, the water repellent, and the viscosity reducer, has extremely high penetration, adhesion, expansion and blocking, and corrosion resistance capabilities, has good affinity for steel and concrete, can penetrate into gaps and capillaries at the interface of the steel-air-cement protective cap of the foot, adheres to the gaps, and expands and blocks the gaps. The rust preventive solves the problem that conventional isolation and rust prevention methods fail to effectively prevent electrochemical corrosion of the tower foot steel, resulting in an inability to slow down the rusting of the tower foot.

Description

Technical Field

[0001] The present invention relates to the technical field of metal protection, in particular to a rust preventive for a transmission tower foot, a preparation method and an application thereof. Background Art

[0002] Due to the long-term exposure of transmission tower bases to harsh environmental conditions such as sun and rain, vegetation and soil coverage, acid rain erosion, and seawater salt spray, rust defects frequently occur at the bases, and severe corrosion penetration may occur. If these rust defects develop and expand, they will inevitably cause the tower to tilt or even collapse, causing great harm. The fundamental cause of transmission tower base corrosion is that there are always tiny gaps at the interface between the tower base steel, air, and cement cap. Water, electrolyte solutions, and oxygen at these interfaces will accumulate on the surface, while other parts will flow into the gaps under the action of internal and external capillaries and osmotic pressure, and come into contact with the steel inside the cement cap, causing unstable electrochemical reactions, resulting in electrochemical corrosion damage to the bases.

[0003] At present, the technology of existing transmission tower foot rust prevention and treatment mainly adopts brushing various anti-rust paints on the steel surface and interface, brushing epoxy resin isolation glue at the interface, building a new cement protective cap at the tower foot, and a combination of the three, but all have many shortcomings and fail to cure the tower foot rust problem. Brushing various anti-rust paints and epoxy resin isolation glue can extend the tower foot life (1-2 years), but the modifiers, additives, Zn, Fe powder etc. added in the anti-rust paint and epoxy resin isolation glue all fail to eliminate the surface tension of the paint, and there are problems such as poor affinity with steel and concrete surfaces, poor permeability, low fluidity, and low adhesion. The tower foot steel-air-cement protective cap interface gap and capillary tube cannot be fully blocked. Under outdoor sunshine and high temperature and humidity conditions, the internal and external oxygen concentration difference and pressure difference cause wet air to escape deeply along the gap and capillary channel, so it is impossible to effectively block the water and electrolyte solution at the interface to penetrate into the cement protective cap. In addition, after the epoxy resin isolation glue hardens, it will experience aging cracks, loosening, peeling, and other problems due to the erosion of temperature differences between day and night, solar ultraviolet rays, seawater salt spray, etc., which will seriously shorten the anti-rust life of the tower foot. If a combination of anti-rust paint, epoxy resin isolation glue, and pouring a new cement protective cap is used, it will not only increase the cost, but also cause new rust problems at the connection between the new cement protective cap and the steel. It can be seen that the existing prevention and control measures for transmission tower feet cannot effectively block the penetration path of water, electrolyte solution, and oxygen at the interface into the cement protective cap, fail to fully block the gaps and capillaries at the tower foot steel-air-cement protective cap interface, and fail to effectively prevent the electrochemical corrosion of the tower foot steel. Summary of the Invention

[0004] The invention provides a transmission tower foot rust preventer, a preparation method and an application thereof. The transmission tower foot rust preventer can effectively prevent electrochemical corrosion of tower foot steel.

[0005] The first aspect of the present invention provides a rust preventive agent for the foot of a transmission tower, which comprises the following components by mass fraction:

[0006] 850-950 parts of metal cutting oil waste liquid;

[0007] 65-85 parts of penetration aid;

[0008] 75-95 parts of preservatives;

[0009] 150-180 parts of anti-seepage agent;

[0010] 300-400 parts of jackfruit resin;

[0011] 60-90 parts of expansion agent;

[0012] 78-98 parts of water repellent;

[0013] 15-35 parts of viscosity reducer.

[0014] It should be noted that the metal cutting waste oil in the present invention is a waste oil, an oily cutting fluid with high adhesion to metal and good bonding strength, which can achieve waste recycling. In combination with other components, it can adhere to the surface of the tower base steel at the interface of the tower base steel, air, and cement protective cap, forming an oily shielding layer that fills and blocks the gaps and capillaries at the interface of the tower base steel, air, and cement protective cap. The jackfruit resin in the present invention is a resin secreted by jackfruit trees in the Guangdong and Hainan areas after incision. It is a white or off-white viscous fluid. After mixing with the base oil in the system, it forms a viscous base oil-jackfruit resin mixed grease.

[0015] Preferably, the penetration enhancer is sodium ricinoleate sulfate, the active matter content in the penetration enhancer is ≥12%, the sulfide group is ≥2.0%, and the pH is 7-8.

[0016] It should be noted that the sodium ricinoleate sulfate in the present invention can be directionally arranged on the surface of the base oil, reducing the surface tension of the system in the tower foot rust inhibitor system, so that the tower foot rust inhibitor system has low surface tension and has a strong affinity for the metal and cement interface, accelerating the penetration of the tower foot rust inhibitor system into the gaps and capillaries at the interface of the tower foot steel-air-cement protective cap, expelling the wet air existing in the gaps and capillaries at the interface of the tower foot steel-air-cement protective cap, squeezing out impurities and powder, and forming a single system sealant in the pores.

[0017] Preferably, the preservative is disodium stannous citrate.

[0018] It should be noted that the disodium stannous citrate in the present invention can enable the tower foot rust inhibitor system to have an oxygen-removing and anti-corrosion effect, and has an anti-corrosion and sterilization effect on jackfruit resin. When excess moist air, salt spray and water vapor enter the pore interface, excess dissolved oxygen can be eliminated to avoid the formation of a chemical primary battery structure.

[0019] Preferably, the anti-penetration agent is a triterpenoid saponin.

[0020] It should be noted that triterpenoid saponin is a colorless, transparent liquid with industrial grade purity. As the anti-seepage agent of the system, it refers to a type of glycoside of artificial triterpenoid compounds. Its function is to disperse the components in the system and play an anti-seepage and anti-freeze role, thereby enhancing the durability of the system. When the base oil and jackfruit resin penetrate into the interface gaps and capillaries of the tower foot steel-air-cement protective cap, it can prevent the humid air, salt spray, and accumulated water around the tower foot from continuing to penetrate under the action of temperature and osmotic pressure, and maintain a dry environment in the pores of the interface.

[0021] Preferably, the expansion agent is SY-K expansion fiber waterproofing agent, which is a powdered solid with a compressive strength of 30-33 MPa.

[0022] It's important to note that the SY-K expansive fiber waterproofing agent imparts initial fluidity, mid-term viscosity, and late-stage expansion to the rust inhibitor base oil-jackfruit resin mixture. Once added to the system, it prevents the base oil-jackfruit resin mixture from curing and cracking, imparting a certain degree of toughness. This agent provides a long-term expansion and plugging effect within the gaps and capillaries at the tower foot steel-air-cement protective cap interface, significantly different from traditional tower foot corrosion protection processes. Upon contact with water, the SY-K expansive fiber waterproofing agent expands and fibrosis, plugging the capillaries. The waterproofing principle is to increase system expansion within the system and, after thickening, produce surface bumps and burrs that act as a water-blocking barrier.

[0023] Preferably, the water repellent is permeable nano-potassium methyl silicate with a viscosity of 1000-1100 cps and an adhesion of 1.3-1.6 MPa.

[0024] It should be noted that the permeable nano-potassium methyl silicate can penetrate into the pores of the tower foot cement and the capillary interface of the tower foot concrete under the action of osmosis, forming a concrete cement matrix-hydrophobic protective layer-base oil-jackfruit resin mixed grease-concrete cement matrix structure, which greatly prevents liquid water from penetrating into the solidified cement-based material through the surface or capillary action and accumulating in contact with the tower foot steel.

[0025] Preferably, the viscosity reducer is ADE-6 heavy oil viscosity reducer.

[0026] It should be noted that ADE-6 heavy oil viscosity reducer can adjust the fluidity and miscibility of the base oil-jackfruit resin mixed oil, thereby achieving controllable consistency of the base oil-jackfruit resin mixed oil.

[0027] A second aspect of the present invention provides a method for preparing a rust inhibitor for a transmission tower foot, comprising the following steps:

[0028] Step 1: heating the metal cutting oil waste liquid to a first temperature, shearing and stirring, then adding a viscosity reducer, cooling to a second temperature, adding jackfruit resin, and then heating to a third temperature while stirring, and then ultrasonically vibrating to obtain a base oil-jackfruit resin mixed grease;

[0029] Step 2: adding a penetration aid, a preservative, an anti-seepage agent, a swelling agent and a hydrophobic agent to the base oil-jackfruit resin mixed grease, and stirring to obtain a transmission tower foot rust inhibitor.

[0030] Preferably, in step 1, the first temperature is 75°C-85°C, the second temperature is 25°C-30°C, and the third temperature is 50°C-60°C.

[0031] More preferably, step 1 specifically includes: adding 900 parts of metal cutting oil waste liquid into a reactor, heating to 80°C, shear stirring for 12 minutes, adding 20 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S), stirring for 4 minutes, cooling to 28°C, adding 350 parts of jackfruit resin, and then heating to 55°C, stirring for 17 minutes, and then ultrasonically vibrating for 40 minutes to obtain a base oil-jackfruit resin mixed oil.

[0032] More preferably, step 2 specifically comprises: adding 75 parts of sodium ricinoleate sulfate, 80 parts of disodium stannous citrate, 160 parts of triterpenoid saponins, 70 parts of SY-K expansion fiber waterproofing agent, and 85 parts of permeable nano-methyl potassium silicate to the base oil-jackfruit resin mixed oil; and mixing in a high-speed mixer in a free-falling manner at a frequency of 50 Hz for 55 minutes, and removing the mixture for use.

[0033] A third aspect of the present invention provides a method for preventing rust from occurring at the foot of an iron tower, comprising the following steps:

[0034] Brush the rust preventive agent for the tower foot onto the interface where the cement protective cap of the tower foot contacts the steel material, so that the rust preventive agent for the tower foot can penetrate into the interface and the internal channels of the cement-based material.

[0035] Specifically, the rust preventive agent for the tower foot of the transmission tower is allowed to penetrate into the interface and the internal channels of the cement-based material, including: (1) pressurized penetration, in which a brush is dipped in the rust preventive agent and applied to the interface between the cement protective cap of the tower foot and the steel material. During the short period of time when the contact interface is painted, the rust preventive agent penetrates into the interface and the surface of the cement-based material under the pressure of the brush; (2) free penetration, in which the rust preventive agent remaining on the interface and the surface of the cement-based material after the rust preventive agent leaves the brush and penetrates into the interface and the internal channels of the cement-based material by relying on gravity, capillary action, and osmotic pressure.

[0036] It can be seen from the above technical solutions that the present invention has the following advantages:

[0037] The invention provides a rust preventive for a transmission tower foot. The raw materials for preparing the rust preventive include the following components by mass: 850-950 parts of metal cutting oil waste liquid; 65-85 parts of a penetration enhancer; 75-95 parts of a preservative; 150-180 parts of an anti-seepage agent; 300-400 parts of jackfruit resin; 60-90 parts of an expander; 78-98 parts of a hydrophobic agent; and 15-35 parts of a viscosity reducer. The rust inhibitor composed of metal cutting oil waste liquid, penetration aid, preservative, anti-seepage agent, jackfruit resin, expansion agent, hydrophobic agent and viscosity reducer has extremely high penetration, adhesion, expansion blocking and corrosion resistance, has good affinity for steel and concrete, can penetrate into the interface gaps and capillaries of the foot steel-air-cement protective cap to adhere and form an expansion blocking effect, maintains a good and strong oil film state at the interface for a long time, has obvious oxygen inhibition and hydrophobic effects, can block water, electrolyte solution and oxygen, has a service life of up to 6-10 years, and has level 1 adhesion. It solves the problem that traditional isolation and rust prevention methods fail to effectively prevent the electrochemical corrosion of tower foot steel, resulting in the inability to effectively slow down the rust of the tower foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 The present invention provides a flow chart of a method for preparing a rust preventive agent for a transmission tower foot according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The present invention provides a rust preventive for the foot of an electric tower, a preparation method thereof, and an application thereof, which are used to solve the technical defects in the prior art that the prevention and control measures for the foot of a transmission tower cannot effectively block the penetration pathways of water, electrolyte solution, and oxygen at the interface into the cement protective cap, fail to fully block the gaps and capillaries at the interface of the tower foot steel-air-cement protective cap, and fail to effectively prevent the electrochemical corrosion of the tower foot steel.

[0041] In the description of this application, it should be noted that relational terms such as "first", "second", "third", "fourth", etc. are only used to distinguish one entity from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities.

[0042] The following is a clear and complete description of the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] See also Figure 1 The embodiment of the present invention provides a method for preparing a rust preventive agent for an electric iron tower foot, comprising the following steps:

[0044] Step 1: heating the metal cutting oil waste liquid to a first temperature, shearing and stirring, then adding a viscosity reducer, cooling to a second temperature, adding jackfruit resin, and then heating to a third temperature while stirring, and then ultrasonically vibrating to obtain a base oil-jackfruit resin mixed grease;

[0045] Step 2: adding a penetration aid, a preservative, an anti-seepage agent, a swelling agent and a hydrophobic agent to the base oil-jackfruit resin mixed grease, and stirring to obtain a transmission tower foot rust inhibitor.

[0046] The present invention first mixes jackfruit resin with base oil in a system to form a viscous base oil-jackfruit resin mixed grease, and then adds a penetration enhancer, a preservative, an anti-seepage agent, an expander and a hydrophobic agent to the base oil-jackfruit resin mixed grease to improve the penetration and rust prevention performance of the rust inhibitor. The grease is used for rust prevention of the foot of an electric tower, has good affinity for steel and concrete, penetrates into the gaps and capillaries at the interface of the foot steel-air-cement protective cap, adheres to the capillaries and forms an expansion and blocking effect, thereby effectively preventing electrochemical corrosion of the tower foot steel.

[0047] Furthermore, the present invention also provides some specific embodiments in combination with raw materials in the prior art, as shown below, wherein the raw materials or reagents used in the embodiments are all commercially available or homemade.

[0048] Example 1:

[0049] This example prepares a novel rust preventative for transmission tower feet. The raw materials include: 850 parts of metal cutting oil waste liquid, 65 parts of sodium ricinoleate sulfate, 75 parts of disodium stannous citrate, 150 parts of triterpenoid saponins, 300 parts of jackfruit resin, 60 parts of SY-K expansion fiber waterproofing agent, 78 parts of permeable nano-potassium methyl silicate, and 15 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S). The preparation method is as follows:

[0050] (1) Preparation of base oil-jackfruit resin mixed grease. 850 parts of metal cutting oil waste liquid was added to a reactor, heated to 80°C, and sheared and stirred for 10 minutes. 15 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S) was added and stirred for 3 minutes. The mixture was cooled to 25°C, and 300 parts of jackfruit resin was added. The mixture was then heated to 50°C and stirred for 15 minutes. The mixture was then ultrasonically shaken for 3 minutes and removed for later use.

[0051] (2) Mixing and dispersing the system. Simultaneously add 65 parts of sodium ricinoleate sulfate, 75 parts of disodium stannous citrate, 150 parts of triterpenoid saponin, 60 parts of SY-K expansion fiber waterproofing agent, and 78 parts of permeable nano-methyl potassium silicate to the above (1). Mix the mixture in a high-speed mixer at a frequency of 50 Hz for 50 minutes, remove the mixture, and prepare a rust preventive for the base of an iron tower.

[0052] In the present embodiment, first prepare base oil-jackfruit resin mixed grease reason: because jackfruit resin is a natural resin with biological activity, viscosity is much larger than metal cutting oil, but both are the plugging things of the fine pores of the iron tower foot leak-proofing, so must possess the high non-stratified effect of fusion degree, for this reason after high-temperature heating, expand the molecular spacing of metal cutting oil, make its macromolecular structure be more regular form.Jackfruit resin biological activity under heating, jackfruit cytoplasm structure is opened, and after viscosity reducer adds, its structure is destroyed, is dispersion and hole form, and under high-speed stirring effect, jackfruit resin and metal cutting oil macromolecular fill mutually, softly form integrated system.But other components must add later, this is because anti-seepage agent, swelling agent etc. can occupy the spacing of jackfruit resin and metal cutting oil, reduce system synergistic effect, therefore must carry out step by step.

[0053] Example 2:

[0054] This example prepares a novel rust preventative for transmission tower feet. The raw materials include: 900 parts of metal cutting oil waste liquid, 75 parts of sodium ricinoleate sulfate, 80 parts of disodium stannous citrate, 160 parts of triterpenoid saponins, 350 parts of jackfruit resin, 70 parts of SY-K expansion fiber waterproofing agent, 85 parts of permeable nano-potassium methyl silicate, and 20 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S). The preparation method is as follows:

[0055] (1) Preparation of base oil-jackfruit resin mixed grease. 900 parts of metal cutting oil waste liquid were added to a reactor, heated to 80°C, sheared and stirred for 12 minutes, 20 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S) were added, stirred for 4 minutes, cooled to 28°C, 350 parts of jackfruit resin were added, and then heated to 55°C and stirred for 17 minutes. After that, ultrasonic vibration was performed for 40 minutes and the mixture was taken out for use.

[0056] (2) Mixing and dispersing the system. Simultaneously add 75 parts of sodium ricinoleate sulfate, 80 parts of disodium stannous citrate, 160 parts of triterpenoid saponin, 70 parts of SY-K expansion fiber waterproofing agent, and 85 parts of permeable nano-methyl potassium silicate to the above (1). Mix the mixture in a high-speed mixer at a frequency of 50 Hz for 55 minutes, remove the mixture, and prepare a rust preventive for the tower foot.

[0057] Example 3:

[0058] This example prepares a novel rust preventative for transmission tower feet. The raw materials include: 950 parts of metal cutting oil waste liquid, 85 parts of sodium ricinoleate sulfate, 95 parts of disodium stannous citrate, 180 parts of triterpenoid saponins, 400 parts of jackfruit resin, 90 parts of SY-K expansion fiber waterproofing agent, 98 parts of permeable nano-potassium methyl silicate, and 35 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S). The preparation method is as follows:

[0059] (1) Preparation of base oil-jackfruit resin mixed grease. 950 parts of metal cutting oil waste liquid were added to a reactor, heated to 80°C, sheared and stirred for 15 minutes, 35 parts of ADE-6 heavy oil viscosity reducer (C8H9NaO3S) were added, stirred for 5 minutes, cooled to 30°C, 400 parts of jackfruit resin were added, and then heated to 60°C and stirred for 20 minutes. After that, ultrasonic vibration was performed for 50 minutes and the mixture was taken out for use.

[0060] (2) Mixing and dispersing the system. Add 85 parts of sodium ricinoleate sulfate, 95 parts of disodium stannous citrate, 180 parts of triterpenoid saponin, 90 parts of SY-K expansion fiber waterproofing agent, and 98 parts of permeable nano-methyl potassium silicate to the above (1). Mix the mixture in a high-speed mixer at a frequency of 50 Hz for 60 minutes, then remove the mixture for use. A rust preventive for iron tower footings is obtained.

[0061] Test Example 1

[0062] 1. Penetration test data:

[0063] The tower foot rust inhibitors prepared in Examples 1 to 3, the anti-rust paint commonly used in the prior art, and the epoxy resin isolation adhesive commonly used in the prior art were subjected to permeability tests, and the penetration depths of the rust inhibitors were measured.

[0064] The tower foot rust inhibitor, anti-rust paint and epoxy resin isolation adhesive prepared in Examples 1 to 3 were respectively subjected to penetration tests on metal surfaces, plastic and rubber surfaces. The test results are shown in Table 1.

[0065] Table 1. Penetration test results

[0066] Metal plastic rubber Example 1 Rust Inhibitor 5mm 3mm 2mm Example 2 Rust Inhibitor 5mm 3mm 2mm Example 3 Rust Inhibitor 5mm 3mm 2mm anti-rust paint 0.8mm 0.2mm 0.1mm Epoxy resin isolation adhesive 0.1mm 0mm 0mm

[0067] 2. Adhesion test data:

[0068] The tower foot rust inhibitor, anti-rust paint and epoxy resin isolation adhesive prepared in Examples 1 to 3 were respectively coated on the surface of the metal sample. Their adhesion was evaluated by tensile testing under an applied tensile force of 300N. The test results are shown in Table 2.

[0069] 3. Expansion and blockage test data:

[0070] After injecting the tower foot rust inhibitor, anti-rust paint and epoxy resin isolation adhesive prepared in Examples 1 to 3 into a pipe with a hole diameter of 5 mm, an expansion blockage test was performed to measure the blockage degree. The results are shown in Table 2.

[0071] 4. Corrosion resistance test data:

[0072] The tower foot rust inhibitor, anti-rust paint and epoxy resin isolation adhesive prepared in Examples 1 to 3 were applied to a steel surface and exposed to salt water. After 48 hours, the degree of corrosion of the tower foot rust inhibitor, anti-rust paint and epoxy resin isolation adhesive applied to the steel surface was tested. The measured corrosion depth results are shown in Table 2.

[0073] Table 2. Adhesion, expansion and plugging performance, and corrosion resistance test results

[0074] Adhesion Expansion and clogging performance Corrosion resistance Example 1 Rust Inhibitor 200N 80％ 0.05mm Example 2 Rust Inhibitor 200N 80％ 0.05mm Example 3 Rust Inhibitor 200N 80％ 0.05mm anti-rust paint 189N 55％ 0.085mm Epoxy resin isolation adhesive 20N 50％ 0.14mm

[0075] According to the test results of the penetration, adhesion, expansion and clogging and corrosion resistance of the rust inhibitor in Table 2 above, it can be seen that the performance and effect of the iron tower foot rust inhibitor provided by the present invention are higher than those of existing products and measures.

[0076] Comparative Example 1

[0077] In this comparative example, a rust preventive was prepared. The preparation method was the same as that in Example 1, except that the jackfruit resin and the expander component were not added in this comparative example.

[0078] The performance of the rust inhibitor prepared in this comparative example was tested:

[0079] Adhesion Test: The rust inhibitor prepared in this comparative example was applied to a metal specimen and its adhesion was evaluated through a tensile test. The test results showed that under an applied tensile force of 300N, the adhesion between the rust inhibitor and the metal specimen was reduced by 42% compared to the normal value.

[0080] Expansion and blockage test: After the rust inhibitor prepared in this comparative example was injected into a pipe with a hole diameter of 5 mm, the flow rate of the pipe was reduced by only 55%, which was far less than the rust inhibitor for the tower foot prepared in Example 1.

[0081] Corrosion resistance testing: The rust inhibitor prepared in this comparative example was applied to the surfaces of various materials and exposed to salt water to evaluate its corrosion resistance. The test results showed that after 48 hours of salt water exposure, the corrosion rate of the steel surface coated with the rust inhibitor prepared in this comparative example was 0.12 mm, far greater than 0.05 mm, indicating that omitting the addition of jackfruit resin and expander would reduce the corrosion resistance of the rust inhibitor.

[0082] Comparative Example 2

[0083] In this comparative example, a rust preventive was prepared. The preparation method was the same as that in Example 1, except that no penetration aid was added in this comparative example.

[0084] The performance of the rust inhibitor prepared in this comparative example was tested:

[0085] Penetration Test: The rust inhibitor, without the addition of a penetration enhancer, was subjected to a penetration test, and the penetration depth was measured. The test results showed that the rust inhibitor prepared in this comparative example penetrated the metal surface to a depth of 1.8 mm, far less than the 5 mm penetration depth of Examples 1-3, indicating a significant decrease in penetration ability.

[0086] Comparative Example 3

[0087] In this comparative example, a rust preventive was prepared. The preparation method was the same as that in Example 1, except that no hydrophobic agent and anti-seepage agent were added in this comparative example.

[0088] The performance of the rust inhibitor prepared in this comparative example was tested:

[0089] Corrosion resistance testing: The rust inhibitor prepared in this comparative example was applied to the surfaces of various materials and exposed to salt water to evaluate its corrosion resistance. The test results showed that after 48 hours of salt water exposure, the corrosion depth of the steel surface coated with the rust inhibitor prepared in this comparative example was 0.20 mm, significantly greater than the 0.05 mm corrosion depth of Examples 1-3. This indicates that the corrosion resistance of the rust inhibitor prepared without the addition of a hydrophobic agent or an anti-seepage agent is significantly reduced.

[0090] Comparative Example 4

[0091] In this comparative example, a rust inhibitor was prepared. The preparation method was the same as that in Example 1, except that no preservative or penetration aid was added in this comparative example.

[0092] Corrosion resistance testing: The rust inhibitor prepared in this comparative example was applied to the surfaces of various materials and exposed to salt water to evaluate its corrosion resistance. The test results showed that after 48 hours of salt water exposure, the corrosion depth of the steel surface coated with the rust inhibitor prepared in this comparative example was 0.31 mm, far exceeding the corrosion depth of 0.05 mm in Examples 1-3, indicating a significant decrease in corrosion resistance.

[0093] In summary, the present invention forms a viscous base oil-jackfruit resin mixed grease by mixing the jackfruit resin with the base oil, and then adds a penetration aid, a preservative, an anti-penetration agent, a swelling agent and a hydrophobic agent to the base oil-jackfruit resin mixed grease, so that the components act synergistically, thereby significantly improving the penetration performance, adhesion, swelling and blocking performance and corrosion resistance of the rust inhibitor.

[0094] The above is a detailed introduction to the rust inhibitor for the foot of an electric tower provided by the present invention, its preparation method and application. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A rust preventive for the foot of a transmission tower, characterized in that: Calculated by mass fraction, it includes the following components: 850-950 parts of metal cutting oil waste liquid; 65-85 parts of penetration aid; 75-95 parts of preservatives; 150-180 parts of anti-seepage agent; 300-400 parts of jackfruit resin; 60-90 parts of expansion agent; 78-98 parts of water repellent; 15-35 parts of viscosity reducer; The penetration enhancer is sodium ricinoleate sulfate, wherein the active ingredient content in the penetration enhancer is ≥ 12%, the sulfide group is ≥ 2.0%, and the pH is 7-8; The preservative is disodium stannous citrate; The anti-seepage agent is triterpenoid saponin; The expansion agent is SY-K expansion fiber waterproofing agent, a powdered solid with a compressive strength of 30-33MPa; The hydrophobic agent is permeable nano-potassium methyl silicate with a viscosity of 1000-1100 cps and an adhesion of 1.3-1.6 MPa; The viscosity reducer is ADE-6 heavy oil viscosity reducer.

2. A method for preparing the rust inhibitor for the base of a power transmission tower according to claim 1, characterized in that: The following steps are involved: Step 1: heating the metal cutting oil waste liquid to a first temperature, shearing and stirring, then adding a viscosity reducer, cooling to a second temperature, adding jackfruit resin, and then heating to a third temperature while stirring, and then ultrasonically vibrating to obtain a base oil-jackfruit resin mixed grease; Step 2: adding a penetration aid, a preservative, an anti-seepage agent, a swelling agent and a hydrophobic agent to the base oil-jackfruit resin mixed grease, and stirring to obtain a transmission tower foot rust inhibitor.

3. The preparation method according to claim 2, characterized in that In step 1, the first temperature is 75°C-85°C, the second temperature is 25°C-30°C, and the third temperature is 50°C-60°C.

4. A method for rust prevention of iron tower feet, characterized in that: The following steps are involved: The transmission tower foot rust preventive agent according to claim 1 is brushed on the interface where the tower foot cement protective cap contacts the steel material, so that the transmission tower foot rust preventive agent penetrates into the interface and the internal channel of the cement-based material.

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