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CN-122011899-A - Wear-resistant diamond micropowder coating composition for intelligent bionic joint, coating, bionic joint, device, preparation method and application of wear-resistant diamond micropowder coating composition

CN122011899ACN 122011899 ACN122011899 ACN 122011899ACN-122011899-A

Abstract

The invention provides a wear-resistant diamond micro powder coating composition for an intelligent bionic joint, a coating, a bionic joint, a device, a preparation method and application of the wear-resistant diamond micro powder coating composition and the coating, and belongs to the technical field of wear-resistant coatings. The wear-resistant diamond micro powder coating composition for the intelligent bionic joint comprises a diamond micro powder mixture, a resin matrix, ceramic wear-resistant filler, a surface treatment agent, a dispersing agent and an environment-friendly solvent, wherein the diamond micro powder mixture comprises modified diamond micro powder and unmodified diamond micro powder in a mass ratio of (20-40) to (1-5), the preparation method of the modified diamond micro powder comprises the steps of S1, carrying out acid treatment and alkali treatment on the unmodified diamond micro powder to obtain activated diamond micro powder, and S2, mixing the activated diamond micro powder with the modifying agent, filtering, heating and drying to obtain the modified diamond micro powder. The wear-resisting performance of the coating can be improved, the service life of the intelligent bionic joint can be prolonged, and the stability is good.

Inventors

  • LI GUOZHAN

Assignees

  • 汉兴建设(北京)有限公司

Dates

Publication Date
20260512
Application Date
20260312

Claims (20)

  1. 1. The wear-resistant diamond micropowder coating composition for the intelligent bionic joint is characterized by comprising a diamond micropowder mixture, a resin matrix, ceramic wear-resistant filler, a surface treating agent, a dispersing agent and an environment-friendly solvent; The diamond micropowder mixture comprises modified diamond micropowder and unmodified diamond micropowder with the mass ratio of (20-40) to (1-5); the preparation method of the modified diamond micro powder comprises the following steps: S1, carrying out acid treatment and alkali treatment on unmodified diamond micro powder to obtain activated diamond micro powder; s2, mixing the activated diamond micro powder with a modifier, filtering, heating and drying to obtain modified diamond micro powder.
  2. 2. The wear-resistant diamond micropowder coating composition for intelligent bionic joint according to claim 1, wherein the diamond micropowder mixture has a particle diameter of 100nm to 10 μm and a purity of 98% or more.
  3. 3. The wear-resistant diamond micro powder coating composition for the intelligent bionic joint according to claim 1, wherein the acid treatment is carried out by heating in an acid solution at 40-100 ℃ for 3-5h, wherein the acid is at least one of sulfuric acid, nitric acid and hydrochloric acid, and the concentration of the acid solution is 20-40wt%.
  4. 4. The wear-resistant diamond micro powder coating composition for the intelligent bionic joint according to claim 1, wherein the alkali treatment is that the heat treatment is carried out for 1-2h at 40-100 ℃ in an alkali solution, the alkali is at least one of sodium hydroxide and potassium hydroxide, and the concentration of the alkali solution is 3-6wt%.
  5. 5. The wear-resistant diamond micropowder coating composition for the intelligent bionic joint, which is disclosed in claim 1, is characterized in that the mass ratio of the activated diamond micropowder to the modifier is (5-10): (0.5-2), and the modifier is a silane coupling agent.
  6. 6. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 5, wherein the silane coupling agent comprises at least one of an aminosilane coupling agent, an epoxy silane coupling agent, a methacryloxy silane coupling agent, and a mercapto silane coupling agent.
  7. 7. The wear-resistant diamond micropowder coating composition for intelligent bionic joint according to claim 1, wherein the heating is 100-120 ℃ for 4-6 hours.
  8. 8. The wear-resistant diamond micro powder coating composition for the intelligent bionic joint according to claim 1, wherein the mass ratio of the diamond micro powder mixture, the ceramic wear-resistant filler and the surface treating agent is (25-41): 8-11): 1.5-3.
  9. 9. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the mass ratio of the resin matrix to the dispersing agent is (30-40): 1-2.
  10. 10. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the resin matrix is at least one of epoxy resin, modified epoxy resin, organic silicon resin, fluorocarbon resin and polyurethane resin.
  11. 11. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the ceramic wear-resistant filler is ceramic powder with the particle size of 0.1-50 μm.
  12. 12. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the surface treating agent is at least one of aluminum oxide, titanium oxide, molybdenum oxide and zinc oxide.
  13. 13. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the dispersing agent is at least one of sodium oleate, pyridinium salt, polymaleic anhydride, sodium pyrophosphate, anhydrous sodium metasilicate, polyacrylamide sulfonate, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
  14. 14. The wear-resistant diamond micropowder coating composition for intelligent bionic joints according to claim 1, wherein the environment-friendly solvent is at least one of ethanol, dipropylene glycol methyl ether, propylene glycol methyl ether and propylene glycol methyl ether acetate.
  15. 15. The wear-resistant diamond micro powder coating composition for the intelligent bionic joint according to any one of claims 1 to 14, wherein the wear-resistant diamond micro powder coating composition for the intelligent bionic joint comprises, by weight, 25% -41% of a diamond micro powder mixture, 30% -40% of a resin matrix, 8% -11% of a ceramic wear-resistant filler, 1.5% -3% of a surface treatment agent, 1% -2% of a dispersing agent and 15% -22% of an environment-friendly solvent.
  16. 16. The method for preparing the wear-resistant diamond micropowder coating composition for intelligent bionic joints as claimed in any one of claims 1 to 15, which is characterized by comprising the following steps: (1) Uniformly mixing unmodified diamond micro powder and modified diamond micro powder to obtain a diamond micro powder mixture; (2) Uniformly mixing a resin matrix, an environment-friendly solvent, a surface treating agent and a dispersing agent to obtain a mixed solution; (3) Adding the diamond micropowder mixture and the ceramic wear-resistant filler, uniformly mixing, and curing to obtain the product.
  17. 17. The method according to claim 16, wherein the aging is performed at 50-70 ℃ for 20-40min.
  18. 18. A coating comprising the wear-resistant diamond micropowder coating composition for intelligent biomimetic joints according to any one of claims 1 to 15.
  19. 19. A biomimetic body joint comprising the coating of claim 18.
  20. 20. A device comprising the biomimetic body joint of claim 19.

Description

Wear-resistant diamond micropowder coating composition for intelligent bionic joint, coating, bionic joint, device, preparation method and application of wear-resistant diamond micropowder coating composition Technical Field The invention provides a wear-resistant diamond micro powder coating composition for an intelligent bionic joint, a coating, a bionic joint, a device, a preparation method and application of the wear-resistant diamond micro powder coating composition and the coating, and belongs to the technical field of wear-resistant coatings. Background The intelligent bionic joint is used as a core component of a bionic robot, a medical artificial limb and a precise transmission device, and the surface of the intelligent bionic joint is easy to wear under the working conditions of high-frequency reciprocating motion and complex load, so that the motion precision, stability and service life of the joint are directly influenced. The traditional metal and ceramic matrix materials have limited self wear resistance, and the single resin coating has insufficient hardness and high friction coefficient, so that the long-term reliable use requirement is difficult to meet. Therefore, the development of the wear-resistant coating with high hardness, low friction and excellent wear resistance on the joint surface has important practical significance for improving the comprehensive performance of the intelligent bionic joint. Chinese patent CN117963908B discloses a modified diamond micropowder and a preparation method and application thereof. The preparation method of the modified diamond micro powder comprises the following steps of carrying out hydroxylation treatment on the diamond micro powder to obtain surface hydroxylation diamond micro powder, carrying out pretreatment on the surface hydroxylation diamond micro powder in a mixed solution of a silane coupling agent and an organic solvent under the ultrasonic condition with the frequency of 25KHz-40KHz and the strength of 1W/cm 2-3W/cm2 to obtain pretreated diamond micro powder, and carrying out vacuum heat treatment on the pretreated diamond micro powder to obtain the modified diamond micro powder. However, when the modified diamond micropowder is applied to a wear-resistant diamond micropowder coating composition, the wear resistance is poor. The Chinese patent CN103374286A discloses a diamond composite high wear-resistant coating, which comprises A, B two components, wherein the component A of the coating comprises, by mass, 50.0-80.0% of modified epoxy resin of matrix resin, 18.0-50.0% of diamond powder, 4.0-20.0% of ceramic powder, 1.0-5.0% of titanium oxide powder, 1.0-20.0% of environment-friendly mixed solvent, 0.5-4.0% of other auxiliary agents, 25-55% of curing agent of component B of the coating, 0.8-8.0% of other auxiliary agents, 2.5-5.0% of plasticizer, 20-50% of environment-friendly mixed solvent, the mass ratio A of component A to component B is 7:1-4:1, the matrix resin is epoxy resin, the diamond powder is diamond produced by south, the powder particles with different particle diameters are mixed according to a certain proportion, the titanium oxide is the nano-level powder, the ceramic powder is alumina ceramic, the environment-friendly mixed solvent is propylene glycol and the curing agent is the mass ratio of methyl ether, the dispersing agent and the curing agent is 1:1-methyl ether, the curing agent is the mixed solvent is the dispersing agent of the methyl ether and the other auxiliary agent is the curing agent is the 3:1. However, the wear-resistant paint provided by the invention has poor wear resistance and poor stability. Disclosure of Invention The invention aims to provide that: Wear-resistant diamond micropowder coating composition for intelligent bionic joint, coating, bionic joint, device, preparation method and application of wear-resistant diamond micropowder coating composition and coating, bionic joint and device, and related technologies of wear-resistant diamond micropowder coating composition and device improve wear resistance of coating so as to prolong service life of intelligent bionic joint. In a first aspect, the invention provides a wear-resistant diamond micropowder coating composition for intelligent bionic joints, which comprises a diamond micropowder mixture, a resin matrix, ceramic wear-resistant filler, a surface treating agent, a dispersing agent and an environment-friendly solvent; The diamond micropowder mixture comprises modified diamond micropowder and unmodified diamond micropowder with the mass ratio of (20-40) to (1-5); the preparation method of the modified diamond micro powder comprises the following steps: S1, carrying out acid treatment and alkali treatment on unmodified diamond micro powder to obtain activated diamond micro powder; s2, mixing the activated diamond micro powder with a modifier, filtering, heating and drying to obtain modified diamond micro powder. Further, the particle size of