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Super-lyophilic coating resistant to mechanical damage and preparation method thereof

A coating and mechanical friction technology, applied in coatings, pigmented coatings, paper coatings, etc., can solve the problems of poor wear resistance of super lyophilic coatings, and achieve excellent lyophilicity, stable mutual bonding, and lyophilicity. Performance-enhancing effects

Active Publication Date: 2021-02-02
CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of poor wear resistance of super-lyophilic coatings in the prior art, to provide an assembled super-lyophilic coating resistant to mechanical damage and its preparation method

Method used

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  • Super-lyophilic coating resistant to mechanical damage and preparation method thereof
  • Super-lyophilic coating resistant to mechanical damage and preparation method thereof
  • Super-lyophilic coating resistant to mechanical damage and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Prepare a low concentration low molecular weight polymer solution for the first layer

[0070] Add 0 to 2 times the amount of inorganic nanoparticles to polyacrylic acid, chitosan quaternary ammonium salt, polyethylene glycol, polyacrylamide, ethyl hydroxyethyl cellulose, and carbomer with a molecular weight of 100 to 100,000 g / mol, and use The solvent is formulated to produce a low concentration low molecular weight polymer solution for the first layer.

[0071]

Embodiment 2

[0073] Preparation of a low concentration high molecular weight polymer solution for the second layer

[0074] Add 0 to 2 times the amount of inorganic nanoparticles to polyacrylic acid, chitosan quaternary ammonium salt, polyethylene glycol, polyacrylamide, ethyl hydroxyethyl cellulose, and carbomer with a molecular weight of 100,000 to 2,000,000 g / mol, and use The solvent was formulated to produce a low concentration high molecular weight polymer solution for the second layer.

[0075]

Embodiment 3

[0077] Preparation of a high concentration high molecular weight polymer solution for the preparation of the third layer

[0078] Add 0 to 2 times the amount of inorganic nanoparticles to polyacrylic acid, chitosan quaternary ammonium salt, polyethylene glycol, polyacrylamide, ethyl hydroxyethyl cellulose, and carbomer with a molecular weight of 100,000 to 2,000,000 g / mol, and use The solvent is formulated to prepare a high concentration high molecular weight polymer solution for the third layer.

[0079]

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Abstract

The invention discloses a mechanical friction-resistant assembly type super-lyophilic coating, which comprises at least three layers of coating structure, and the multi-layer coating structure is stacked in sequence; wherein the first layer is a coating close to the substrate, and the subsequent Each layer of coating is sequentially stacked on the previous coating; wherein, the first layer is a low-molecular-weight polymer, and the low-molecular-weight polymer is mixed with 0~2 times of inorganic nanoparticles; the second layer and each subsequent layer The layers are all high-molecular-weight polymers, and the high-molecular-weight polymers are mixed with 0-2 times of inorganic nanoparticles; the polymers of each layer are hydrophilic polymer materials. The coating of the present invention adopts multi-layer bionic lamination, the bottom is close to the base layer is a low-molecular-weight polymer, which has good bonding force with the base layer, and then multiple layers of high-molecular-weight polymer film layers are sequentially assembled in other layers, so that the super-lyophilic coating There is a good bonding force between them, and the structures of each layer buffer each other, have good toughness, and will not be damaged under the action of mechanical friction damage.

Description

technical field [0001] The invention belongs to novel lyophilic materials, in particular to a super-lyophilic coating resistant to mechanical damage and a preparation method thereof, and belongs to the technical field of functional coatings. Background technique [0002] Super-lyophilic materials refer to the excellent wetting ability of water-based or oily droplets on the surface of the material, usually the contact angle of the droplets is less than 10°, so the water-based or oily droplets are easy to adhere to the surface, so that the material surface can be self-cleaning , or the functional coating is easy to level and wet on its surface to prepare a functional coating with excellent surface properties, which is conducive to improving the smoothness and smoothness of the surface of the material. In addition, since the surface of superlyophilic materials usually has functional reactive functional groups with high surface energy, it can provide a universal functional coati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/046C09D133/02C09D105/08C09D171/02C09D133/26C09D101/28C09D133/04C09D7/61C08L23/12C08L67/02C08L79/08C08L27/16C08L83/07C08L65/00D06N3/00D06N3/04D21H19/38D21H19/46D21H19/58D21H19/82D21H21/18D21H23/30D21H25/06
CPCC08J7/042C08J2323/12C08J2367/02C08J2379/08C08J2401/28C08J2405/08C08J2427/16C08J2433/02C08J2433/04C08J2433/26C08J2471/02C08J2483/07C08K3/34C08K3/346C08K3/36C08K2003/2241C08K2003/2296C08K2003/265C09D101/28C09D105/08C09D133/02C09D133/04C09D133/26C09D171/02D06N3/0022D06N3/0061D06N3/0063D06N3/042D21H19/385D21H19/46D21H19/58D21H19/82D21H21/18D21H23/30D21H25/06
Inventor 何周坤唐昶宇喻永连梅军李秀云
Owner CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS