High-performance dry film lubricant as well as preparation method and application thereof
By preparing and applying high-performance dry film lubricants, the problem of frequent replacement of turnout slide plate lubricating oil is solved, a solid dry film protective layer is formed, the safety and service life of railway turnouts are improved, environmental pollution is reduced, and the lubrication needs of complex environments are adapted.
Patent Information
- Application Number
- CN202510754357.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2025-09-05
AI Technical Summary
The lubricating oil of the existing turnout slide bed needs to be replaced frequently, resulting in frequent maintenance and environmental pollution, and the traditional lubrication method is not effective in complex environments.
High-performance dry film lubricant is used, which is composed of component A and component B in a mass ratio of 1:1. It contains epoxy resin, multifunctional epoxy resin, solid filler, flame retardant, rust inhibitor, toughening agent, extreme pressure anti-wear agent, etc. It forms a solid dry film after mixing and curing, which is suitable for the lubrication of railway turnout slide beds.
It forms a stable protective film, reduces friction coefficient, improves safety performance, reduces turnout wear, extends service life, reduces environmental pollution, adapts to various weather conditions, and has good long-term lubrication.
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Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of dry film lubricants, relates to a high-performance dry film lubricant, and also relates to a preparation method and application of the high-performance dry film lubricant. Background Art
[0002] Since the beginning of the new century, my country's industrial sector has experienced rapid growth. Mechanical equipment is crucial to industrial production, and lubricants are crucial for its proper operation. They ensure efficient operation and effectively extend the service life of machinery. As industrial production continues to place increasing demands on mechanical equipment, so too do the requirements for lubricant selection. Common lubricants are typically composed of mineral oil or base oil, often with a weight ratio of up to 90%. These mineral oils are highly volatile and tend to thicken quickly, requiring frequent lubricant replacement, which results in waste. Railway lubrication and wear reduction require even higher lubrication requirements, making lubricant selection particularly crucial in complex field environments.
[0003] Railway turnouts, used on national railways, high-speed railways, subways, and dedicated lines, are a form of rail transit infrastructure. A railway turnout consists of a switch rail, a slide plate, a switch core, and connecting parts. During the switch operation, the switch rail moves left and right on the slide plate, subjecting it to constant friction during railway operation. This process significantly wears out the switch rail and slide plate. As a key component of the railway track system, the slide plate is numerous, has a short service life, limits train speeds, requires high safety performance, and requires extensive maintenance. Its friction-reducing performance is directly related to railway transportation safety. Summary of the Invention
[0004] The purpose of the present invention is to provide a high-performance dry film lubricant, which solves the problem that the lubricating oil used for lubrication and wear reduction of the existing turnout slide bed needs to be frequently replaced.
[0005] Another object of the present invention is to provide a method for preparing a high-performance dry film lubricant.
[0006] The present invention also aims to provide an application of a high-performance dry film lubricant.
[0007] The first technical solution adopted by the present invention is a high-performance dry film lubricant composed of component A and component B in a mass ratio of 1:1; The raw materials of component A include, by weight: 40-60 parts of epoxy resin; 5-12 parts of multifunctional epoxy resin; 30-70 parts of solid filler; 2-5 parts of flame retardant; 1-3 parts of rust inhibitor; 3-8 parts of toughening agent; 10-20 parts of extreme pressure anti-wear agent; The raw materials of component B include, by weight: 40-60 parts of modified phenolic amine curing agent, 1-2 parts of crosslinking agent, 2-5 parts of tackifier, 20-30 parts of solid lubricant, 1-2 parts of antioxidant, 1-3 parts of rust inhibitor and 1-3 parts of dispersant.
[0008] The present invention is also characterized in that: The epoxy resin is a mixture of novolac epoxy resin and bisphenol A epoxy resin, wherein the mass of the novolac epoxy resin accounts for 20-50% of the total mass of the epoxy resin.
[0009] The bisphenol A epoxy resin is one or more of E-51, E-55, E-03, and E-06; the novolac epoxy resin is one or more of NPPN-631, F-44, F-51, and F-54; and the multifunctional epoxy resin is at least one of AG-80 and AFG-90.
[0010] The solid filler is one or more of calcium carbonate, white carbon black, polytetrafluoroethylene, graphite, molybdenum disulfide, and ferrosoferric oxide; The flame retardant is one or more of melamine, cyanurate, and melamine cyanurate; The rust inhibitor is one or more of benzotriazole, thiadiazole dimer, T701, and T705; The toughening agent is one or more of nano calcium carbonate, nano titanium dioxide, carboxyl liquid nitrile rubber, liquid silicone rubber, and polyether; The extreme pressure anti-wear agent is one or more of triphenyl thiophosphate, dialkyl polysulfide, zinc dialkyl dithiophosphate and molybdenum dialkyl dithiophosphate; The cross-linking agent is one or more of divinylbenzene and diisocyanate; The tackifier is polyisobutylene; The antioxidant is one or more of butyl octyl diphenylamine, alkylated aniline, and 2,6-di-tert-butyl-4-methylphenol.
[0011] The rust inhibitor is one or more of dinonylnaphthalenesulfonic acid calcium salt, dinonylnaphthalenesulfonic acid barium salt and dinonylnaphthalenesulfonic acid zinc salt.
[0012] The dispersant is one or more of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, and a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer.
[0013] The modified phenalkamine curing agent is prepared by reacting polyamine, alkylphenol and paraformaldehyde, wherein the molar ratio of the polyamine, alkylphenol and paraformaldehyde is 2.1:2:2.
[0014] The paraformaldehyde is trioxymethylene; The polyamine is one or more of ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, m-xylylenediamine, methylcyclopentanediamine, and isophoronediamine; The cross-linking agent is one or more of divinylbenzene and diisocyanate.
[0015] The dry film lubricant of the present invention has a high epoxy group content of the phenolic epoxy resin, and the cross-linking density of the product after curing is high, and it has good adhesion to metals. The multifunctional epoxy resin molecule contains a plurality of epoxy groups, and these groups can react with the curing agent simultaneously during the curing process, which can accelerate the curing speed and improve the cross-linking density of the product. Adding a dispersant under heating conditions during the preparation process can further make the various component materials of the dispersed filler densely cross-linked, not only making the entire system more uniform but also improving the cross-linking density of the product. The modified phenolic amine curing agent prepared by the reaction of polyamine, alkylphenol and paraformaldehyde of the present invention utilizes the flexibility and high reactivity of the macromolecular long chain segment, improves the toughness of the curing agent, and allows the product to cure quickly. At the same time, auxiliary agents such as lubricants, anti-wear agents, rust inhibitors, tackifiers, rust inhibitors, and toughening agents are added to the two components A and B, so that the product has a lower friction coefficient, higher load-bearing capacity, strong adhesion, good rust-proof performance and stronger toughness after curing and film formation.
[0016] The second technical solution adopted by the present invention is a method for preparing a high-performance dry film lubricant, and the specific operating steps are as follows: Preparation of Component A: Add epoxy resin and multifunctional epoxy resin into a reaction kettle, heat to 60°C, add toughening agent and stir evenly, then add solid filler, flame retardant and extreme pressure anti-wear agent in sequence and stir for 20 minutes before stopping heating, add rust inhibitor and stir to room temperature, then grind and mix the materials to obtain Component A; Preparation of component B: preparing a modified phenalkamine curing agent, adding the modified phenalkamine curing agent, a cross-linking agent, a solid lubricant, an antioxidant, and a dispersant into a reaction kettle, stirring evenly, then sequentially adding a tackifier and a rust inhibitor, continuing stirring for 20 to 30 minutes, and then grinding and mixing the materials to obtain component B; Component A and component B are mixed in a mass ratio of 1:1 to obtain a dry film lubricant.
[0017] The preparation method of the modified phenalkamine curing agent is as follows: Weigh polyamine, alkylphenol and paraformaldehyde; add alkylphenol to the polyamine, stir and heat to 60°C, add paraformaldehyde, and control the reaction temperature at 65-70°C, stir and react for 1-2 hours, then heat to 85°C, stir and react for 40 minutes, and cool to room temperature to obtain a modified phenolic amine curing agent.
[0018] The third technical solution adopted by the present invention is the application of a high-performance dry film lubricant. When used, component A and component B are fully mixed and then applied to the surface of the friction pair for curing to form a dry lubricating film, which is significantly different from the traditional oiling method. Traditional slide bed lubricants are mostly liquid lubricants, which have the problems of high pollution, short lubrication time, and large environmental impact during use; some dry film lubricants are used in a spraying manner. Such dry film lubricants are easy to fall off from the slide bed when the turnout rotates, which shortens the lubrication time, and these methods will more or less cause certain pollution to the environment; the dry film lubricant described in the present invention is applied by mixing two components, curing to form a dry film, which is not easy to fall off, is strong and wear-resistant, and has little effect on environmental factors, and can improve the problem of slide bed cracking during use.
[0019] The beneficial effects of the present invention are: The high-performance dry film lubricant of the present invention can form a stable protective film on the surface of the turnout slide bed as a lubricating protective layer after being applied to the turnout slide bed, which greatly reduces the friction coefficient when the turnout moves on the slide bed, reduces the resistance when the switch is in action, and further improves the safety performance; with the improvement of its wear reduction performance and load-bearing performance and the reinforcement of the dry film, the probability of the slide bed plate breaking is reduced, and the service life of the slide bed plate is increased; since dry film lubrication is formed, it is essentially different from the traditional oiling method, so it is not affected by media such as rain, snow, dust, and gravel, which increases safety and corrosion resistance, avoids roadbed pollution and is more environmentally friendly; it has good long-term lubrication, can maintain a long lubrication time, and saves manpower and material resources; it has little influence from high and low temperatures, and its various performances are basically stable regardless of winter or summer. DETAILED DESCRIPTION
[0020] The following is a detailed description of the specific embodiments of the present invention, so that those skilled in the art can make a high-performance dry film lubricant according to the specific embodiments. The specific implementation is as follows: Example 1 The present invention discloses a high-performance dry film lubricant, which is composed of the following raw materials in parts by weight: component A, which comprises 45 parts of epoxy resin; 6 parts of multifunctional epoxy resin; 40 parts of solid filler, 2 parts of flame retardant, 1.5 parts of rust inhibitor, 4 parts of toughening agent, and 10 parts of extreme pressure anti-wear agent; the raw materials of component B include: 40 parts of curing agent, 1 part of cross-linking agent, 3 parts of tackifier, 22 parts of solid lubricant, 1 part of antioxidant, 1 part of rust inhibitor, and 2 parts of dispersant.
[0021] Preparation method of component A: Add 45 parts of epoxy resin and 6 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 4 toughening agents and stir evenly, then add 40 parts of solid filler, 2 parts of flame retardant and 10 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 1 part of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0022] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 40 parts of modified phenolic amine curing agent, 1 part of cross-linking agent, 22 parts of solid lubricant, 1 part of antioxidant, and 2 parts of dispersant into a reactor, stir evenly, then add 3 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0023] Mix component A and component B in a ratio of 1:1.
[0024] Example 2 A high-performance dry film lubricant is composed of the following raw materials in parts by weight: component A: 50 parts of epoxy resin; 10 parts of multifunctional epoxy resin; 46 parts of solid filler, 2 parts of flame retardant, 2 parts of rust inhibitor, 5 parts of toughening agent, and 15 parts of extreme pressure anti-wear agent; the raw materials of component B include: 40 parts of curing agent, 2 parts of cross-linking agent, 5 parts of tackifier, 25 parts of solid lubricant, 1 part of antioxidant, 1 part of rust inhibitor, and 3 parts of dispersant.
[0025] Preparation method of component A: Add 50 parts of epoxy resin and 10 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 5 parts of toughening agent and stir evenly, then add 46 parts of solid filler, 2 parts of flame retardant and 15 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 1 part of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0026] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 43 parts of modified phenolic amine curing agent, 2 parts of cross-linking agent, 25 parts of solid lubricant, 1 part of antioxidant, and 3 parts of dispersant into a reactor, stir evenly, then add 5 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0027] Mix component A and component B in a ratio of 1:1.
[0028] Example 3 A high-performance dry film lubricant is composed of the following raw materials in parts by weight: component A: 55 parts of epoxy resin; 10 parts of multifunctional epoxy resin; 50 parts of solid filler, 3 parts of flame retardant, 2 parts of rust inhibitor, 5 parts of toughening agent, and 15 parts of extreme pressure anti-wear agent; the raw materials of component B include: 50 parts of curing agent, 2 parts of cross-linking agent, 5 parts of tackifier, 28 parts of solid lubricant, 2 parts of antioxidant, 1 part of rust inhibitor, and 3 parts of dispersant.
[0029] Preparation method of component A: Add 55 parts of epoxy resin and 10 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 5 parts of toughening agent and stir evenly, then add 50 parts of solid filler, 3 parts of flame retardant and 15 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 2 parts of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0030] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 50 parts of modified phenolic amine curing agent, 2 parts of cross-linking agent, 28 parts of solid lubricant, 2 parts of antioxidant, and 3 parts of dispersant into a reactor, stir evenly, then add 5 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0031] Mix component A and component B in a ratio of 1:1.
[0032] Example 4 A high-performance dry film lubricant is composed of the following raw materials in parts by weight: component A: 60 parts of epoxy resin; 12 parts of multifunctional epoxy resin; 65 parts of solid filler, 5 parts of flame retardant, 2 parts of rust inhibitor, 5 parts of toughening agent, and 20 parts of extreme pressure anti-wear agent; the raw materials of component B include: 55 parts of curing agent, 2 parts of cross-linking agent, 5 parts of tackifier, 30 parts of solid lubricant, 2 parts of antioxidant, 1 part of rust inhibitor, and 3 parts of dispersant.
[0033] Preparation method of component A: Add 60 parts of epoxy resin and 12 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 5 parts of toughening agent and stir evenly, then add 65 parts of solid filler, 5 parts of flame retardant and 20 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 2 parts of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0034] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 55 parts of modified phenolic amine curing agent, 2 parts of cross-linking agent, 30 parts of solid lubricant, 2 parts of antioxidant, and 3 parts of dispersant into a reactor, stir evenly, then add 5 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0035] Mix component A and component B in a ratio of 1:1.
[0036] Specific test methods Adhesion: Test according to the method in GB / T 9286-2021 "Scratch test for paint and varnish films".
[0037] Salt spray resistance: Tested in accordance with the method in GB T 1771-2007, Paints and varnishes - Neutral salt spray resistance test. Specific test conditions: 3.5wt% sodium chloride solution, 35±2°C, 96h. The wear performance of the coating was tested using a high-speed ring block testing machine with a test load of 500N and a speed of 200r / min; High and low temperature alternating performance: The coating is subjected to low-temperature freezing treatment and high-temperature heating treatment by ultra-low temperature refrigerator freezing and heating. After repeated alternating treatment three times, the adhesion test is carried out in accordance with GB / T 9286-2021 standard. In order to verify the characteristics of a high-performance dry film lubricant of the present invention, the performance tests were conducted on the dry film lubricants of the present invention provided in Examples 1-4 above. The results are shown in Table 1 below:
[0038] It can be concluded from the performance summary table that the high-performance dry film lubricant of the present invention has high hardness, stable properties, low friction coefficient, high load-bearing capacity, impact resistance, vibration resistance, good wear reduction performance, good water resistance, high and low temperature resistance, better environmental adaptability, and is more environmentally friendly, and is suitable for actual applications in slide plate lubrication and protection.
[0039] Example 5 A high-performance dry film lubricant is composed of the following raw materials in parts by weight: component A: 60 parts of epoxy resin; 12 parts of multifunctional epoxy resin; 65 parts of solid filler, 5 parts of flame retardant, 2 parts of rust inhibitor, 5 parts of toughening agent, and 20 parts of extreme pressure anti-wear agent; the raw materials of component B include: 55 parts of curing agent, 2 parts of cross-linking agent, 5 parts of tackifier, 30 parts of solid lubricant, 2 parts of antioxidant, 1 part of rust inhibitor, and 3 parts of dispersant.
[0040] Preparation method of component A: Add 60 parts of epoxy resin and 12 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 5 parts of toughening agent and stir evenly, then add 65 parts of solid filler, 5 parts of flame retardant and 20 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 2 parts of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0041] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 55 parts of modified phenolic amine curing agent, 2 parts of cross-linking agent, 30 parts of solid lubricant, 2 parts of antioxidant, and 3 parts of dispersant into a reactor, stir evenly, then add 5 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0042] Mix component A and component B in a ratio of 1:1.
[0043] Example 6 A high-performance dry film lubricant is composed of the following raw materials in parts by weight: component A: 60 parts of epoxy resin; 12 parts of multifunctional epoxy resin; 65 parts of solid filler, 5 parts of flame retardant, 2 parts of rust inhibitor, 5 parts of toughening agent, and 20 parts of extreme pressure anti-wear agent; the raw materials of component B include: 55 parts of curing agent, 2 parts of cross-linking agent, 5 parts of tackifier, 30 parts of solid lubricant, 2 parts of antioxidant, 1 part of rust inhibitor, and 3 parts of dispersant.
[0044] Preparation method of component A: Add 60 parts of epoxy resin and 12 parts of multifunctional epoxy resin into the reactor, heat to 60°C, add 5 parts of toughening agent and stir evenly, then add 65 parts of solid filler, 5 parts of flame retardant and 20 parts of extreme pressure anti-wear agent in sequence, stir for 20 minutes and stop heating, add 2 parts of rust inhibitor, stir to room temperature and grind and mix the materials to obtain component A.
[0045] Preparation method of component B: Weighing polyamine, alkylphenol and paraformaldehyde, adding 47 parts of alkylphenol to 43 parts of polyamine, stirring and heating to 60°C, adding 16.5 parts of paraformaldehyde in batches, and controlling the reaction temperature at 65-70°C, stirring and reacting for 1-2 hours, then heating to 85°C, stirring and reacting for 40 minutes, and cooling to room temperature to obtain a modified phenalkamine curing agent; Weigh 55 parts of modified phenolic amine curing agent, 2 parts of cross-linking agent, 30 parts of solid lubricant, 2 parts of antioxidant, and 3 parts of dispersant into a reactor, stir evenly, then add 5 parts of tackifier and 1 part of rust inhibitor in sequence, continue stirring for 20 to 30 minutes, and then grind and mix the materials to obtain component B.
[0046] Mix component A and component B in a ratio of 1:1.
[0047] The present invention will be further described below in conjunction with some experimental data.
[0048] (1) Effects of cross-linking agents and thickeners on materials
[0049] As can be seen from the table above, the use of cross-linking agents and tackifiers can enhance the viscosity and adhesion of the material, but this has a certain impact on the curing time. Appropriate viscosity can ensure a low friction coefficient of the material while providing good application stability and a faster curing time, enabling it to act stably and smoothly on the slide bed.
[0050] (2) Effect of toughening agent on overall material performance
[0051] As can be seen from the above table, the use of toughening agent can significantly improve the performance of the material. Since the slide bed needs sufficient hardness during use, but as the hardness increases, the dry film will have a certain brittleness. Adding toughening agent can significantly improve the occurrence of dry film brittleness.
[0052] (3) Effect of the amount of curing agent in component B on the overall performance of the product
[0053] As can be seen from the table above, the amount of curing agent in component B has a significant impact on the formation of dry film lubricant. As the amount of curing agent increases, the overall curing time of the material is significantly shortened, but its impact resistance deteriorates, the brittleness of the material increases, and the toughness weakens. Therefore, the appropriate use of curing agent ratio can fully utilize the material performance.
[0054] The above describes the basic principles, main features and advantages of the present invention. Professionals and technicians in this industry should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, which will fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims
1. A high performance dry film lubricant, characterized in that: It is composed of component A and component B in a mass ratio of 1:1; The raw materials of component A include, by weight: 40-60 parts of epoxy resin; 5-12 parts of multifunctional epoxy resin; 30-70 parts of solid filler; 2-5 parts of flame retardant; 1-3 parts of rust inhibitor; 3-8 parts of toughening agent; and 10-20 parts of extreme pressure and anti-wear agent. The raw materials of component B include, by weight, 40-60 parts of modified phenolic amine curing agent, 1-2 parts of cross-linking agent, 2-5 parts of tackifier, 20-30 parts of solid lubricant, 1-2 parts of antioxidant, 1-3 parts of rust inhibitor, and 1-3 parts of dispersant.
2. A high performance dry film lubricant according to claim 1, characterized in that: The epoxy resin is a mixture of novolac epoxy resin and bisphenol A epoxy resin, wherein the mass of the novolac epoxy resin accounts for 20-50% of the total mass of the epoxy resin.
3. A high performance dry film lubricant according to claim 2, characterized in that: The bisphenol A epoxy resin is one or more of E-51, E-55, E-03, and E-06; the novolac epoxy resin is one or more of NPPN-631, F-44, F-51, and F-54; and the multifunctional epoxy resin is at least one of AG-80 and AFG-90.
4. A high performance dry film lubricant according to claim 1, characterized in that: The solid filler is one or more of calcium carbonate, white carbon black, polytetrafluoroethylene, graphite, molybdenum disulfide, and ferrosoferric oxide; The flame retardant is one or more of melamine, cyanurate, and melamine cyanurate; The rust inhibitor is one or more of benzotriazole, thiadiazole dimer, T701, and T705; The toughening agent is one or more of nano calcium carbonate, nano titanium dioxide, carboxyl liquid nitrile rubber, liquid silicone rubber, and polyether; The extreme pressure anti-wear agent is one or more of triphenyl thiophosphate, dialkyl polysulfide, zinc dialkyl dithiophosphate and molybdenum dialkyl dithiophosphate; The cross-linking agent is one or more of divinylbenzene and diisocyanate; The tackifier is polyisobutylene; The antioxidant is one or more of butyl octyl diphenylamine, alkylated aniline, and 2,6-di-tert-butyl-4-methylphenol; The rust inhibitor is one or more of dinonylnaphthalenesulfonic acid calcium salt, dinonylnaphthalenesulfonic acid barium salt and dinonylnaphthalenesulfonic acid zinc salt; The dispersant is one or more of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, and a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer.
5. A high performance dry film lubricant according to claim 2, characterized in that: The modified phenalkamine curing agent is prepared by reacting polyamine, alkylphenol and paraformaldehyde, wherein the molar ratio of the polyamine, alkylphenol and paraformaldehyde is 2.1:2:
2.
6. A high performance dry film lubricant according to claim 5, characterized in that: The paraformaldehyde is trioxymethylene; The polyamine is one or more of ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, m-xylylenediamine, methylcyclopentanediamine, and isophoronediamine; The cross-linking agent is one or more of divinylbenzene and diisocyanate.
7. A method for preparing a high-performance dry film lubricant, characterized in that: The specific steps are as follows: Preparation of Component A: Add epoxy resin and multifunctional epoxy resin into a reaction kettle, heat to 60°C, add toughening agent and stir evenly, then add solid filler, flame retardant and extreme pressure anti-wear agent in sequence and stir for 20 minutes before stopping heating, add rust inhibitor and stir to room temperature, then grind and mix the materials to obtain Component A; Preparation of component B: preparing a modified phenalkamine curing agent, adding the modified phenalkamine curing agent, a cross-linking agent, a solid lubricant, an antioxidant, and a dispersant into a reaction kettle, stirring evenly, then sequentially adding a tackifier and a rust inhibitor, continuing stirring for 20 to 30 minutes, and then grinding and mixing the materials to obtain component B; Component A and component B were thoroughly mixed in a mass ratio of 1:1 to obtain a dry film lubricant.
8. The method for preparing a high-performance dry film lubricant according to claim 7, characterized in that: The raw materials of component A include, by weight: 40-60 parts of epoxy resin; 5-12 parts of multifunctional epoxy resin; 30-70 parts of solid filler; 2-5 parts of flame retardant; 1-3 parts of rust inhibitor; 3-8 parts of toughening agent; and 10-20 parts of extreme pressure and anti-wear agent. The raw materials of component B include, by weight, 40-60 parts of modified phenolic amine curing agent, 1-2 parts of cross-linking agent, 2-5 parts of tackifier, 20-30 parts of solid lubricant, 1-2 parts of antioxidant, 1-3 parts of rust inhibitor, and 1-3 parts of dispersant.
9. The method for preparing a high-performance dry film lubricant according to claim 8, characterized in that: The preparation method of the modified phenalkamine curing agent is as follows: Weigh polyamine, alkylphenol and paraformaldehyde; add alkylphenol to the polyamine, stir and heat to 60°C, add paraformaldehyde, and control the reaction temperature at 65-70°C, stir and react for 1-2 hours, then heat to 85°C, stir and react for 40 minutes, and cool to room temperature to obtain a modified phenolic amine curing agent.
10. An application of a high performance dry film lubricant, characterized in that: The dry film lubricant is applied to the surface of the friction pair of the turnout slide bed plate and solidified to form a dry lubricating film.