Environment-friendly wheel track wear-resistant protective material and preparation method thereof

Abstract

The invention belongs to the technical field of rail transit operation and maintenance materials, and discloses an environment-friendly wheel track wear-resistant protective material and a preparation method thereof. The raw materials comprise a base material, a rheology regulator, a wetting regulator, a friction regulator, a solid lubricant, an antirust agent and a fluid. The environment-friendly wheel track wear-resistant protective material prepared by integrating nano-compounding and environment-friendly passivation technologies has the characteristics of high wear resistance, strong adhesion and environment friendliness, realizes high wear resistance, strong adhesion and rust construction capability of the surface of a steel rail, is suitable for long-acting protection of wheel track contact surfaces of road sections such as a track traffic heavy haul railway curve, a turnout zone and the like, and has a good application prospect. And the maintenance cost and the environmental pollution are obviously reduced.

Description

Technical Field

[0001] This invention relates to the field of rail transit operation and maintenance materials technology, and in particular to an environmentally friendly wheel-rail wear-resistant protective material and its preparation method. Background Technology

[0002] During train operation, the wheel-rail system is subjected to multi-mode composite friction and high-frequency impact. On heavily loaded curved sections, forced creep friction, wheel flange wear, and railside plastic deformation occur between the wheel flange and the rail side. On straight sections in stations, high-contact stress rolling-micro-slip mixed friction occurs between the wheel tread and the rail top surface. Abrupt geometric changes in the wheel-rail geometry at high-speed rail turnouts trigger instantaneous impact friction, frog rail crushing, and wing rail crack propagation. Frequent acceleration and deceleration during high-speed rail entry and exit from stations cause stick-slip vibration and noise, leading to rail corrugation, wheel tread peeling, and excessive noise, increasing operation and maintenance costs and posing safety hazards.

[0003] Traditional oil and grease lubricants suffer from problems such as easy erosion by rainwater, poor durability, and ballast contamination. Traditional grease / oil friction reducers are ill-suited to the demands of heavy-load rail transit lines; under rail contact pressure, the oil film is prone to rupture and carbonization, resulting in loss of lubrication. Temperature changes can also exacerbate the oil wedge effect, inducing wheel tread peeling damage and rail corrugation, thus reducing wheel-rail operational stability. Furthermore, traditional wheel-rail protection technologies have the following drawbacks: coatings containing heavy metals (such as chromates) violate EU RoHS and Chinese GB 30981-2020 regulations due to the toxicity of hexavalent chromium and high VOC release; epoxy-based coatings have poor dynamic durability and are prone to peeling under impact loads.

[0004] In the field of materials technology for rail transit operation and maintenance, the following patents have been disclosed: CN120248768A discloses an environmentally friendly wear-resistant coating for railways and its preparation method, which uses an epoxy-organosilicon hybrid resin (45~60%) to replace pure epoxy resin, and enhances toughness and adhesion through synergistic enhancement of siloxane bonds and modified nanocellulose. CN202410928653.X discloses a TPU damping pad for high-speed rail tracks in high-frequency vibration scenarios and its preparation method, which embeds microencapsulated castor oil derivatives into the TPU, and releases a repair agent to heal scratches through frictional heat triggering. ZL201911337360.X discloses a tackifying particle for rail-wheel interface thickening in rail transit and its preparation method, which uses SiO2 powder to replace traditional gravel, solving the rail thickening requirement and inhibiting wheel-rail wear. CN202510153577A, CN220836323U, and CN120270294A all disclose intelligent coating devices that dynamically adjust the coating parameters of friction modifiers for outer and inner rails, improving the precise application efficiency of friction modifiers; CN201710350705.X ​​discloses a subway-specific friction modifier that solves the problem of excessively high wheel-rail adhesion coefficients in dry, low-humidity environments; CN202111669142.3 provides a grease-based solid lubricant formula, which suffers from problems such as easy erosion by rainwater and poor durability. The paper "The Influence of Different Lubricating Materials on Wheel-Rail Wear and Rolling Contact Fatigue" (Journal of Tribology, 2022, 5, 935-944) discusses the wheel-rail friction and wear behavior under dry conditions, with the application of rail top friction modifier, lubricating oil, and lubricating grease. It points out that applying rail top friction modifier can adjust the wheel-rail friction coefficient to the range of 0.1 to 0.3, significantly inhibiting wheel-rail wear and plastic deformation, and can prevent lubricating oil and lubricating grease from entering the crack and generating an oil wedge effect, as well as alleviate rolling contact fatigue damage.

[0005] Existing wheel-rail protection materials suffer from compatibility issues with increasingly sophisticated intelligent operation and maintenance systems. Most materials do not consider collaborative operation with intelligent equipment such as online monitoring and precision coating, and their rheological properties and curing performance cannot meet the requirements of dynamic, on-demand maintenance. Furthermore, high-performance materials often come with high costs, and there is a lack of cost-gradient design solutions that can be flexibly adjusted according to different operating conditions.

[0006] For the field of rail transit operation and maintenance, wheel and rail wear-resistant protective materials also need to have the ability to be applied to rusted surfaces. There is an urgent need to develop a wheel and rail environmentally friendly protective material that is free of heavy metals, has high wear resistance, strong adhesion, the ability to be applied to rusted surfaces, and is applicable to different regions and climates. This would form a comprehensive solution that can meet the requirements of long-term protection and environmental friendliness, adapt to the trend of intelligent operation and maintenance, and has good economic efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide an environmentally friendly wheel and rail anti-wear protective material and its preparation method, so as to solve the problems of high pollution, short life and heavy labor in existing operation and maintenance technologies.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention provides an environmentally friendly wheel and rail wear-resistant protective material, comprising the following raw materials in parts by weight: Base material 40-80 parts, rheology modifier 1-10 parts, wetting modifier 0.1-5 parts, friction modifier 5-15 parts, solid lubricant 5-10 parts, rust inhibitor 0.1-5 parts, fluid 1-20 parts.

[0009] Preferably, the base material is one or more of waterborne polyurethane-organic silicone hybrid resin, waterborne polyurethane-acrylate, and polyamide-imide.

[0010] Preferably, the rheology modifier is one or more of sodium montmorillonite, bentonite, casein, and starch.

[0011] Preferably, the wetting regulator is one or more of OP-10, OP-15, OP-20, NP-10, ethoxylated modified acetylenic diol, and sodium polyphosphate.

[0012] Preferably, the friction modifier is one or more of the following: calcium carbonate, magnesium carbonate, magnesium silicate, bentonite, fly ash, barium sulfate, kaolin-type clay, diatomaceous earth, alumina, magnesium oxide, zirconium oxide, iron oxide red, iron oxide black, and zinc dialkyl disulfide.

[0013] Preferably, the solid lubricant is one or more of graphite, MoS2, boron nitride, graphene, zinc stearate, and polytetrafluoroethylene.

[0014] Preferably, the rust inhibitor is one or more of polyethylene glycol, acid-modified MOF, microencapsulated castor oil derivative, and hydroxyethyl methacrylate phosphate.

[0015] Preferably, the fluid is one or more of water, isopropanol, and glycerol.

[0016] Preferably, the mass ratio of the solid lubricant to the friction modifier is 1:1~3.

[0017] This invention also provides a method for preparing an environmentally friendly wheel-rail wear-resistant protective material, comprising the following steps: Solid lubricant and wetting conditioner are mixed and ball-milled to obtain a lubricating slurry. The rheology modifier and the fluid are mixed to obtain a rheology modifier slurry; The base material and rust inhibitor are mixed and reacted to obtain a hybrid base material; By mixing hybrid base material, lubricating slurry, rheology modifier slurry, and friction modifier, an environmentally friendly wheel and rail anti-wear protective material is obtained.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial effects: (1) The present invention produces an environmentally friendly wheel and rail anti-wear protective material by using micro-nano composite technology (using nano-level solid lubricant and micron-level friction modifier added to the hybrid base material) and environmentally friendly passivation technology (the protective material does not contain chromium). The material has high wear resistance, strong adhesion and environmental friendliness, and achieves high wear resistance, strong adhesion and rust-resistant construction capability on the rail surface. It is suitable for long-term protection of wheel and rail contact surfaces in sections such as curves and turnout areas of heavy-load railways, which significantly reduces maintenance costs and environmental pollution.

[0019] (2) The present invention uses water-based polyurethane-organosilicon hybrid resin as the base material, which combines the toughness of polyurethane with the weather resistance and low surface energy of organosilicon, which helps to form a protective coating with high bonding strength and strong weather resistance.

[0020] (3) This invention achieves dynamic and stable control of the friction coefficient at the wheel-rail interface through the synergistic effect of nanoscale solid lubricants and micron-scale friction modifiers. The mechanism is as follows: the nanoscale solid lubricant forms a lubricating film at the contact interface, providing a basic friction reduction effect; while the micron / nanoscale friction modifier (such as kaolin-type clay and diatomaceous earth) acts as a "friction stabilizer," generating microscopic rolling and damping effects during the rolling and sliding motion of the wheel and rail, effectively avoiding excessively low friction coefficients caused by pure lubrication, thereby stabilizing the wheel-rail friction coefficient within the optimized range of 0.25~0.35. This range can ensure the adhesion required for train traction and braking, and significantly reduce wear and noise.

[0021] (4) In the actual operation and maintenance of rails, the cost of rust removal and cleaning of rail surfaces is high and affects operation. This invention has the ability to carry out construction with rust, which greatly reduces the difficulty of construction and maintenance costs, and improves the convenience of on-site application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0023] Figure 1 The images show the original state and the state after drying into a coating of the environmentally friendly wheel and rail anti-wear protective material of Example 1. Figure 2 The bonding strength between the environmentally friendly wheel and rail wear-resistant protective materials of Examples 1-5 and the rail substrate. Detailed Implementation

[0024] This invention provides an environmentally friendly wheel and rail wear-resistant protective material, comprising the following raw materials in parts by weight: Base material 40-80 parts, rheology modifier 1-10 parts, wetting modifier 0.1-5 parts, friction modifier 5-15 parts, solid lubricant 5-10 parts, rust inhibitor 0.1-5 parts, fluid 1-20 parts.

[0025] In this invention, the mass ratio of the solid lubricant to the friction modifier is preferably 1:1 to 3, more preferably 1:1 to 2, and even more preferably 1:1.

[0026] In this invention, the base material is preferably one or more of waterborne polyurethane-organosilicon hybrid resin, waterborne polyurethane-acrylate, and polyamide-imide, more preferably a mixture of waterborne polyurethane-organosilicon hybrid resin and polyamide-imide, and even more preferably a mixture of waterborne polyurethane-organosilicon hybrid resin and polyamide-imide in a mass ratio of 6:1.

[0027] In this invention, the rheology modifier is preferably one or more of sodium montmorillonite, bentonite, casein, and starch, more preferably sodium montmorillonite or bentonite, and even more preferably sodium montmorillonite.

[0028] In this invention, the wetting regulator is preferably one or more of OP-10, OP-15, OP-20, NP-10, ethoxylated modified alkynyl diol, and sodium polyphosphate, more preferably one or more of OP-10, NP-10, and ethoxylated modified alkynyl diol, and more preferably OP-10.

[0029] In this invention, the friction modifier is preferably one or more of calcium carbonate, magnesium carbonate, magnesium silicate, bentonite, fly ash, barium sulfate, kaolin-type clay, diatomaceous earth, alumina, magnesium oxide, zirconium oxide, iron oxide red, iron oxide black, and zinc dialkyl disulfide, more preferably one or more of calcium carbonate, magnesium carbonate, and iron oxide black, and even more preferably iron oxide black.

[0030] In this invention, the solid lubricant is preferably one or more of graphite, MoS2, boron nitride, graphene, zinc stearate, and polytetrafluoroethylene, more preferably one or more of graphite, boron nitride, and graphene, and even more preferably a mixture of boron nitride and graphene.

[0031] In this invention, the rust inhibitor is preferably one or more of polyethylene glycol, acid-modified MOF, microencapsulated castor oil derivative, and hydroxyethyl methacrylate phosphate, more preferably microencapsulated castor oil derivative or hydroxyethyl methacrylate phosphate, and even more preferably hydroxyethyl methacrylate phosphate.

[0032] In this invention, the fluid is preferably one or more of water, isopropanol, and glycerol, more preferably water or isopropanol, and even more preferably water.

[0033] In this invention, the environmentally friendly wheel and rail wear-resistant protective material has a viscosity of 50,000~200,000 mPa·s at 25°C and a thixotropic index of 1.5~4.0.

[0034] This invention also provides a method for preparing an environmentally friendly wheel-rail wear-resistant protective material, comprising the following steps: Solid lubricant and wetting conditioner are mixed and ball-milled to obtain a lubricating slurry. The rheology modifier and the fluid are mixed to obtain a rheology modifier slurry; The base material and rust inhibitor are mixed and reacted to obtain a hybrid base material; By mixing hybrid base material, lubricating slurry, rheology modifier slurry, and friction modifier, an environmentally friendly wheel and rail anti-wear protective material is obtained.

[0035] In this invention, the ball milling speed is preferably 1000~5000 rpm, more preferably 1500~3000 rpm, and even more preferably 2000 rpm; the ball milling time is preferably 1~3 h, more preferably 1~2 h, and even more preferably 1.5 h.

[0036] In this invention, the mixing temperature of the rheology modifier and the fluid is preferably 40~70℃, more preferably 50~70℃, and even more preferably 60℃; the mixing time is preferably 30~60min, more preferably 35~50min, and even more preferably 40min.

[0037] In this invention, the reaction temperature is preferably 60~90℃, more preferably 65~80℃, and even more preferably 70℃; the reaction time is preferably 1~3h, more preferably 1~2h, and even more preferably 1h.

[0038] In this invention, the mixing temperature of the hybrid base material, lubricating slurry, rheology modifier slurry, and friction modifier is preferably 30~50℃, more preferably 35~45℃, and even more preferably 40℃; the mixing time is preferably 10~60min, more preferably 20~60min, and even more preferably 50min; the mixing speed is preferably 200~2000rpm, more preferably 1000~1800rpm, and even more preferably 1500rpm.

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] This embodiment provides a method for preparing an environmentally friendly wheel-rail wear-resistant protective material, including the following steps: (1) Graphene, boron nitride (total of graphene and boron nitride is 8 parts) and 0.3 parts of ethoxylated modified acetylene glycol are mixed in a mass ratio of 3:1 and added to a ball mill jar. Zirconia balls with a diameter of 5 mm (ball-to-material ratio of 10:1) are added and ball milled at 2000 rpm for 1.5 h to obtain a lubricating slurry. (2) Disperse 2 parts of sodium montmorillonite into 10 parts of deionized water, heat to 60℃ and stir for 40 min until fully swollen (viscosity > 5000 mPa·s); add 0.2 parts of OP-10 to obtain rheology modifier slurry; (3) 60 parts of waterborne polyurethane-organosilicon hybrid resin and 10 parts of polyamide-imide were added to a three-necked flask reactor and stirred at 300 rpm at 70°C; 5 parts of hydroxyethyl methacrylate phosphate rust inhibitor were added and the reaction was carried out at the temperature for 1 h; after the reaction was completed, 0.5 parts of NP-10 were added and stirred at 300 rpm for 30 min to obtain the hybrid base material; (4) Mix the hybrid base material and rheology modifier at 40°C using an anchor mixer at 300 rpm for 20 min; then add lubricating slurry and 8 parts friction modifier (a mixture of magnesium silicate, bentonite, kaolin clay, diatomaceous earth and calcium carbonate in a mass ratio of 1:2:2:2:1), and treat at 40°C using a high-speed disperser at 1500 rpm for 30 min, and then perform three cycles of treatment at room temperature using a high-quality homogenizer to obtain an environmentally friendly wheel and rail wear-resistant protective material.

[0042] The original state diagram of the environmentally friendly wheel and rail wear-resistant protective material prepared above is shown in the figure. Figure 1 As shown in the figure, the coating is dried in a drying oven at 100℃. Figure 1 As shown.

[0043] The preparation method of the waterborne polyurethane-organic silicone hybrid resin in step (3) of this embodiment includes the following steps: In a four-necked flask equipped with a mechanical stirrer, thermometer, and reflux condenser, with n(-NCO) / n(-OH) = 1.2, metered hydroxyl silicone oil (vacuum dehydrated), poly(1,4-butanediol adipate), toluene diisocyanate (w(toluene diisocyanate) = 18.0%), and a small amount of catalyst dibutyltin dilaurate were added sequentially. The mixture was stirred thoroughly under nitrogen protection and prepolymerized at 75°C for 2 hours. Then, 2,2-bis(hydroxymethyl)propionic acid and 1, 4-Butanediol chain extender (w(2,2-bis(hydroxymethyl)propionic acid) = 3.5%, w(1,4-butanediol) = 2.0%), heated to 80℃ and continued reaction for 1 hour. During the polymerization process, a small amount of acetone was added to dilute the polymer as appropriate. Then, it was cooled to room temperature, and triethylamine was added at 100% neutralization degree for 30 minutes. Subsequently, deionized water mixed with a small amount of ethylenediamine was added dropwise for emulsification, and the residual acetone in the system was removed by rotary evaporation to obtain waterborne polyurethane-organic silicone hybrid resin. Toluene diisocyanate, 1,4-butanediol, and 2,2-bis(hydroxymethyl)propionic acid were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.; poly(1,4-butanediol adipate) (PCL2000) was purchased from Jining Huakai Resin Co., Ltd.; hydroxyl silicone oil was purchased from Jiaxing Kerui Organosilicon Co., Ltd.; dibutyltin dilaurate, triethylamine, ethylenediamine, and acetone (dried by 0.4 nm molecular sieve): analytical grade, purchased from Sinopharm Chemical Reagent Co., Ltd.

[0044] Example 2

[0045] This embodiment provides a method for preparing an environmentally friendly wheel and rail anti-wear protective material. See Example 1 for details. The difference is that the solid lubricant in step (1) is boron nitride, and the resin in step (3) is polyamide-imide, with a dosage of 50 parts.

[0046] Example 3

[0047] This embodiment provides a method for preparing an environmentally friendly wheel and rail anti-wear protective material. See Example 1 for details. The difference is that the solid lubricant in step (1) is zinc stearate, and the resin in step (3) is waterborne polyurethane-organic silicone hybrid resin, with a dosage of 50 parts.

[0048] Example 4

[0049] This embodiment provides a method for preparing an environmentally friendly wheel and rail anti-wear protective material. See Example 1 for details. The difference is that the rheology modifier in step (2) is bentonite, and the resin in step (3) is polyamide-imide, with a dosage of 40 parts.

[0050] Example 5

[0051] This embodiment provides a method for preparing an environmentally friendly wheel and rail anti-wear protective material. See Example 1 for details. The difference is that the rheology modifier in step (2) is starch, and the resin in step (3) is waterborne polyurethane-organic silicone hybrid resin, with a dosage of 60 parts.

[0052] Using an automatic adhesion tester, 20mm diameter aluminum ingots were fixed to U71Mn steel sheets with a special epoxy resin adhesive. After curing, the environmentally friendly wheel-rail anti-wear protective materials of Examples 1-5 (named FM#1-FM#5 respectively) were coated to form a coating. A constant tensile force (approximately 1.0 MPa / s) was applied vertically until the coating was pulled off. The bonding strength between the environmentally friendly wheel-rail anti-wear protective material and the U71Mn steel sheet was recorded. The results are as follows: Figure 2 As shown.

[0053] Example 6

[0054] This embodiment provides a method for preparing a low-cost, environmentally friendly wheel-rail wear-resistant protective material, including the following steps: (1) Mix 5 parts of micron-sized graphite, 3 parts of micron-sized molybdenum disulfide and 0.5 parts of OP-10, and ball mill according to the method of Example 1 to obtain a lubricating slurry; (2) Following the same procedure as in Example 1 (2), a rheology-modified slurry is obtained; (3) 70 parts of waterborne polyurethane-acrylate and 3 parts of polyethylene glycol rust inhibitor were reacted at 70°C for 1 hour to obtain a hybrid base material; (4) Mix the hybrid base material and rheology modifier slurry at 40°C using an anchor mixer at 300 rpm for 20 min; then add lubricating slurry and 10 parts friction modifier (iron oxide black), and treat at 40°C using a high-speed disperser at 1500 rpm for 30 min, and then perform three cycles of treatment at room temperature using a high-quality homogenizer to obtain an environmentally friendly wheel and rail anti-wear protective material.

[0055] Using a rolling friction testing machine, the wheel and rail anti-wear protection materials of Example 1 (high performance) and Example 6 (low cost) were compared with commercially available solid lubricating rods (Comparative Example 1) and traditional greases (Comparative Example 2). Examples 1 and 6 were able to stabilize the coefficient of friction in the range of 0.30~0.35, and their wear resistance performance was better than that of Examples 1 and 2.

[0056] The wheel-rail anti-wear protective material of Example 1 has specially designed rheological properties, making it suitable for commercial coating devices described in existing technologies (CN202510153577A, CN220836323U, and CN120270294A). The system operates smoothly without clogging, and the coating amount control accuracy error is <±5%, proving that the excellent pumpability and thixotropic properties of the wheel-rail anti-wear protective material of this invention enable the material to be accurately metered and uniformly coated onto the rail surface.

[0057] Based on the cost per unit area per construction session, the cost of Example 6 is approximately 65% ​​of that of Example 1 and approximately 90% of that of Comparative Example 1 (solid lubricating rod), but its protective lifespan is more than twice that of Comparative Example 1, demonstrating excellent cost-effectiveness.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An environmentally friendly wheel and rail wear-resistant protective material, characterized in that, Raw materials comprising the following parts by weight: Base material 40-80 parts, rheology modifier 1-10 parts, wetting modifier 0.1-5 parts, friction modifier 5-15 parts, solid lubricant 5-10 parts, rust inhibitor 0.1-5 parts, fluid 1-20 parts.

2. The environmentally friendly wheel and rail wear-resistant protective material according to claim 1, characterized in that, The base material is one or more of the following: waterborne polyurethane-organic silicone hybrid resin, waterborne polyurethane-acrylate, and polyamide-imide.

3. The environmentally friendly wheel and rail wear-resistant protective material according to claim 2, characterized in that, The rheology modifier is one or more of sodium montmorillonite, bentonite, casein, and starch.

4. The environmentally friendly wheel and rail wear-resistant protective material according to claim 3, characterized in that, The wetting regulator is one or more of OP-10, OP-15, OP-20, NP-10, ethoxylated modified acetylenic diol, and sodium polyphosphate.

5. An environmentally friendly wheel and rail wear-resistant protective material according to claim 1 or 4, characterized in that, The friction modifier is one or more of the following: calcium carbonate, magnesium carbonate, magnesium silicate, bentonite, fly ash, barium sulfate, kaolin-type clay, diatomaceous earth, alumina, magnesium oxide, zirconium oxide, iron oxide red, iron oxide black, and zinc dialkyl disulfide.

6. The environmentally friendly wheel and rail wear-resistant protective material according to claim 5, characterized in that, The solid lubricant is one or more of micron-sized graphite, MoS2, polytetrafluoroethylene, nano-sized graphene, and boron nitride.

7. The environmentally friendly wheel and rail wear-resistant protective material according to claim 6, characterized in that, The rust inhibitor is one or more of polyethylene glycol, acid-modified MOF, microencapsulated castor oil derivatives, and hydroxyethyl methacrylate phosphate.

8. The environmentally friendly wheel and rail wear-resistant protective material according to claim 7, characterized in that, The fluid is one or more of water, isopropanol, and glycerol.

9. The environmentally friendly wheel and rail wear-resistant protective material according to claim 1, characterized in that, The mass ratio of the solid lubricant to the friction modifier is 1:1~3.

10. A method for preparing an environmentally friendly wheel and rail wear-resistant protective material according to any one of claims 1 to 9, characterized in that, Includes the following steps: Solid lubricant and wetting conditioner are mixed and ball-milled to obtain a lubricating slurry. The rheology modifier and the fluid are mixed to obtain a rheology modifier slurry; The base material and rust inhibitor are mixed and reacted to obtain a hybrid base material; By mixing hybrid base material, lubricating slurry, rheology modifier slurry, and friction modifier, an environmentally friendly wheel and rail anti-wear protective material is obtained.

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