A preparation method of self-lubricating coating material with micro-nano ball effect

A technology of self-lubricating coating and ball effect, which is applied in the field of preparation of self-lubricating coating materials, can solve problems such as the stability of contaminated plating solution, improve self-lubricating ability and service life, unique stress buffering and shock absorption, Increase the effect of the rolling friction effect

Active Publication Date: 2020-09-11
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many unresolved problems in the electroplating method, such as pollution problems, plating solution stability problems, etc.

Method used

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  • A preparation method of self-lubricating coating material with micro-nano ball effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of self-lubricating base layer:

[0035] Mix and disperse 80g of matrix resin, 20g of solid lubricant, and 20g of solvent by means of ultrasonic and mechanical stirring to obtain a self-lubricating spray coating. The coating is formed on the surface of the metal substrate by thermal spraying, and the self-lubricating base layer is prepared by hot-pressing and pre-curing.

[0036] 2. Preparation of self-lubricating coating material with nano ball effect:

[0037] (1) Preparation of core-shell structure inorganic@organic micro-nanoparticles

[0038]Disperse 10g of inorganic nanoparticles in 10L of absolute ethanol, add 1g of bifunctional catechol monomer Im-Ca under stirring at room temperature, stir evenly for 30min, add 1g of bifunctional phenylboronic acid monomer Im-BA, and continue to The reaction was stirred for 24 hours to obtain nanoparticles with core-shell structure.

[0039] (2) Preparation of mosaic self-lubricating surface layer

[0040] Dis...

Embodiment 2

[0042] 1. Preparation of self-lubricating base layer:

[0043] 65g of matrix resin, 10g of solid lubricant and 5g of solvent were mixed and dispersed uniformly by means of ultrasonic and mechanical stirring to obtain a self-lubricating spray coating. The coating was formed on the surface of the metal substrate by thermal spraying, and the self-lubricating base layer was prepared by hot pressing and pre-curing.

[0044] 2. Preparation of self-lubricating coating material with nano ball effect:

[0045] (1) Preparation of core-shell structure inorganic@organic micro-nanoparticles

[0046] Disperse 5 g of inorganic nanoparticles in 10 L of absolute ethanol, add 0.1 g of bifunctional catechol monomer Im-Ca under stirring at room temperature, and add 0.1 g of bifunctional phenylboronic acid monomer Im-BA after uniform stirring for 20 minutes. The stirring reaction at room temperature was continued for 24 hours to obtain nanoparticles with core-shell structure.

[0047] (2) Prepar...

Embodiment 3

[0050] 1. Preparation of self-lubricating base layer:

[0051] 50g matrix resin, 5g solid lubricant and 5g solvent were mixed and dispersed uniformly by means of ultrasonic and mechanical stirring to obtain a self-lubricating spray coating. The coating was formed on the surface of the metal substrate by thermal spraying, and the self-lubricating base layer was prepared by hot-pressing pre-curing.

[0052] 2. Preparation of self-lubricating coating material with nano ball effect:

[0053] (1) Preparation of core-shell structure inorganic@organic micro-nanoparticles

[0054] Disperse 1g of inorganic nanoparticles in 2L of absolute ethanol, add 0.5g of bifunctional catechol monomer Im-Ca under stirring at room temperature, and add 0.5g of bifunctional phenylboronic acid monomer Im-BA after uniform stirring for 10 minutes. The stirring reaction at room temperature was continued for 12 hours to obtain nanoparticles with core-shell structure.

[0055] (2) Preparation of mosaic sel...

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Abstract

Disclosed in the present invention is a method for preparing a self-lubricating coating material having a micro-nano ball effect. In the present invention, a method for constructing inorganic@organic micro-nano particles having a core-shell structure is used for coating a layer of micro-nano particles having a core-shell structure on the surface of a coating pre-cured resin, and after the coating resin is cured and formed, organic polymer components in the shell layer of the micro-nano particles having core-shell structure are removed by means of solvent etching to expose the inorganic micro-nano particles. The removal of the organic polymer components in the shell layer provides slight gaps between the inorganic micro-nano particles and a matrix resin, increases the free volume of the inorganic micro-nano particles, and forms a rolling friction effect on the surface of a coating layer and a contact object surface, thereby reducing friction resistance and loss.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a preparation method of a self-lubricating coating material with micro-nano ball effect. Background technique [0002] Friction and wear are one of the main causes of energy loss and mechanical equipment failure. Adding fillers with low surface energy or introducing solid lubricants to coating materials to reduce surface damage such as friction and wear is a widely used method at present. Self-lubricating coating materials refer to those coating materials that have good anti-friction and anti-wear properties, and can be used to reduce friction and wear between two interacting relative moving surfaces. The preparation of self-lubricating coatings mainly includes sintering, thermal spraying, molding, composite electroplating and other methods. In comparison, the sintering method has a simple process and less investment, but the bonding strength of the coating is low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D161/16C09D167/04C09D179/08C09D181/02C09D163/00C09D5/00C09D7/65C09D7/61C09D1/00C08G79/08B05D7/14
CPCB05D7/14C08G79/08C08K2003/3009C08K2003/387C09D1/00C09D5/002C09D161/16C09D163/00C09D167/04C09D179/08C09D181/02C09D7/61C09D7/65C08L27/18C08K3/04C08K3/30C08K3/38C08K3/34
Inventor 曾碧榕戴李宗陈国荣毛杰鹿振武黄楚红
Owner XIAMEN UNIV
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