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Preparation method of abrasion-resistant superhydrophobic coating

A technology of super-hydrophobic coatings and mixtures, applied in the direction of polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of decreased hydrophobicity, self-cleaning surface is not wear-resistant, etc., to achieve good wear resistance, wear resistance The effect of performance improvement

Inactive Publication Date: 2019-04-12
ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, self-cleaning surfaces constructed of conventional superhydrophobic materials are often not wear-resistant, and their hydrophobic properties will be greatly reduced after slight abrasion or scratching.

Method used

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  • Preparation method of abrasion-resistant superhydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of wear-resistant superhydrophobic coating comprises the following steps in turn:

[0031] (1) Get each raw material component by weight ratio:

[0032] 5 parts of tetraethyl orthosilicate; 6 parts of ethyl cellulose fiber; 4 parts of polyethylene terephthalate fiber; 2 parts of polyethylene fiber; 7 parts of polypropylene fiber; 1.5 parts of graphene dispersion; basalt fiber 10 parts; 10 parts of sericite; 5 parts of polybutylacrylate; 4 parts of carbon fiber; 4 parts of nitrocellulose; 5 parts of nano-silica; 11 parts of pure acrylic emulsion; 11 parts of polyurethane emulsion; 1.5 parts of zinc sulfide; 3 parts; 3 parts of tributyl phosphate; 3 parts of propylene glycol; 4 parts of distilled water.

[0033] The polyethylene terephthalate fiber has a diameter of 45 microns to 75 microns and a length of 10 mm; polyethylene fibers have a diameter of 45 microns to 75 microns and a length of 5 mm; polypropylene fibers have a diameter of 45 microns ...

Embodiment 2

[0042] The preparation method of wear-resistant superhydrophobic coating comprises the following steps in turn:

[0043] (1) Get each raw material component by weight ratio:

[0044] 4 parts of tetraethyl orthosilicate; 5 parts of ethyl cellulose fiber; 3 parts of polyethylene terephthalate fiber; 1 part of polyethylene fiber; 6 parts of polypropylene fiber; 0.5 parts of graphene dispersion; basalt fiber 9 parts; 8 parts of sericite; 3 parts of polybutylacrylate; 2 parts of carbon fiber; 2 parts of nitrocellulose; 4 parts of nano-silica; 10 parts of pure acrylic emulsion; 10 parts of polyurethane emulsion; 1 part; 1 part of tributyl phosphate; 2 parts of propylene glycol; 28 parts of distilled water;

[0045] The polyethylene terephthalate fiber has a diameter of 15 microns to 45 microns and a length of 10 mm; polyethylene fibers have a diameter of 15 microns to 45 microns and a length of 5 mm; polypropylene fibers have a diameter of 15 microns to 45 microns, The length is 3...

Embodiment 3

[0054] The preparation method of wear-resistant superhydrophobic coating comprises the following steps in turn:

[0055] (1) Get each raw material component by weight ratio:

[0056] 4.5 parts of ethyl orthosilicate; 5.5 parts of ethyl cellulose fiber; 3.5 parts of polyethylene terephthalate fiber; 1.5 parts of polyethylene fiber; 6.5 parts of polypropylene fiber; 1 part of graphene dispersion; basalt fiber 9.5 parts; 9 parts of sericite; 4 parts of polybutylacrylate; 3 parts of carbon fiber; 3 parts of nitrocellulose; 4.5 parts of nano-silica; 10.5 parts of pure acrylic emulsion; 10.5 parts of polyurethane emulsion; 2 parts; 2 parts of tributyl phosphate; 2.5 parts of propylene glycol; 16 parts of distilled water.

[0057] The polyethylene terephthalate fiber has a diameter of 30 microns to 60 microns and a length of 10 mm; polyethylene fibers have a diameter of 30 microns to 60 microns and a length of 5 mm; polypropylene fibers have a diameter of 30 microns to 60 microns, ...

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Abstract

The invention relates to a coating preparation technology, and aims to provide a preparation method of an abrasion-resistant superhydrophobic coating. The preparation method comprises the following steps: performing stirring on polyethylene terephthalate fibers, polyethylene fibers, polypropylene fibers and a polyurethane emulsion to obtain a mixture 1; performing stirring on ethyl cellulose fibers, cellulose nitrate, polybutyl acrylate, basalt fibers, sericite, and a pure acrylic emulsion to obtain a mixture 2; performing stirring on tetraethyl orthosilicate, titanium dioxide, nano silicon dioxide, zinc sulfide, tributyl phosphate and distilled water to obtain a mixture 3; performing ultrasonic treatment on carbon fibers, a graphene dispersion liquid and propylene glycol to obtain a mixture 4; adding the mixture 4 into the mixture 1, and performing stirring to obtain a mixture 5; adding the mixture 3 into the mixture 2, and performing stirring to obtain a mixture 6; and adding the mixture 5 into the mixture 6, and performing stirring to obtain the abrasion-resistant superhydrophobic coating. According to the method provided by the invention, after the coating prepared by the method directly coats the surface of a building according to a conventional construction method and curing is performed at room temperature, a water contact angle can reach 160 degrees or more, and the coating has extremely-excellent abrasion resistance.

Description

technical field [0001] The invention relates to coating preparation technology, in particular to a preparation method of wear-resistant super-hydrophobic coating. Background technique [0002] Coatings with superhydrophobic structures are often used to construct self-cleaning surfaces of buildings. In the process of natural precipitation, water droplets slide down because they cannot adhere to the super-hydrophobic surface. During the sliding process, a large amount of pollutants attached to the surface of the building can be taken away, so as to achieve the purpose of self-cleaning. [0003] However, self-cleaning surfaces constructed of conventional superhydrophobic materials are often not wear-resistant, and their hydrophobic properties are greatly reduced after slight abrasion or scratching. The surface of buildings is easily affected by wind and sand erosion, foreign matter scraping and foreign matter falling and impacting, etc. The superhydrophobic structure construct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D101/28C09D167/02C09D123/06C09D123/12C09D7/61C09D7/63C09D7/65
CPCC08K2201/011C08L2205/035C08L2205/16C09D133/04C09D175/04C09D7/61C09D7/63C09D7/65C09D7/70C08L33/04C08L1/28C08L67/02C08L23/06C08L23/12C08K13/04C08K7/06C08K7/10C08L75/04C08K3/04C08K3/34
Inventor 张玲洁沈涛杨辉
Owner ZIGONG INNOVATION CENT OF ZHEJIANG UNIV