A kind of high abrasion-resistant superhydrophobic composite coating, preparation method and coating made of it

Abstract

The invention discloses a high wear-resistant super-hydrophobic composite coating, which consists of the following components in parts by mass: 5-15 parts of organosilane, 1-10 parts of inorganic anti-wear agent, 2-9 parts of catalyst, and 1-3 parts of hydrophobic agent 0-3 parts of carbon fiber, 0-3 parts of glass flake powder, 2-8 parts of one or both of tetraethylenepentamine and tetraethylenetriamine, 60-90 parts of solvent; the present invention also provides a A preparation method of a high wear-resistant super-hydrophobic composite coating and a preparation method of the coating. The beneficial effects of the present invention are: the coating continuous phase of the present invention has high hardness, high wear resistance, high smoothness and superhydrophobicity, and has high compactness and strong bonding force with the substrate at the same time. The coating of the present invention can Coating and curing at room temperature to achieve anti-scouring, anti-fouling, anti-corrosion, anti-aging and other effects, suitable for steel, glass, rubber and other substrates, can be used for high-voltage cables, outdoor high-voltage equipment, ships, automotive glass, etc., to minimize seawater, The erosion and shearing of the coating by sediment and wind and sand.

Description

technical field

[0001] The invention relates to the technical field of coatings, in particular to a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof. Background technique

[0002] Superhydrophobic surface refers to a surface with a contact angle greater than 150° and a rolling angle less than 10° and has a special wetting effect. It has special functions such as anti-icing, anti-corrosion, and anti-fouling. Self-cleaning and anti-flashover of electrical equipment, application of biomedical and bionic materials, waterproofing and anti-corrosion of pipelines, power transmission towers and cables against ice and snow in winter, and many other fields have broad application prospects.

[0003] Although the superhydrophobic coating prepared by the traditional method has a high hydrophobic angle and a low sliding angle, the coating has poor wear resistance and is not suitable for application on the interface with flowing media...

Examples

Embodiment 1

[0037] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0038] The coating is composed of the following components in parts by mass:

[0039] 10 parts of vinyltrimethoxysilane as organosilane, 5 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic wear agent, N-(β-aminoethyl)-γ-aminopropyltrimethyl(ethyl)oxy 6 parts of silane as a catalyst, 1 part of perfluorooctyltriethoxysilane as a hydrophobic agent, 1 part of carbon fiber with a length of 100-500um, 1 part of glass flake powder with a particle size of D50 of 10um, tetraethylenepentamine and tetraethylenetriamine 2 parts, 75 parts of absolute ethanol and 9 parts of deionized water as solvents.

[0040] The composition of the above mass ratio is prepared according to the following preparation method:

[0041] (1) Weigh the carbon fiber, glass flake powder and absolute ethanol according to the...

Embodiment 2

[0047] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0048] The coating is composed of the following components in parts by mass:

[0049] 2.5 parts each of vinyl trimethoxysilane and γ-glycidyl etheroxypropyl trimethoxysilane as organosilane, 9 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic anti-wear agent, N-(β-aminoethyl base)-γ-aminopropyltrimethyl(b)oxysilane 9 parts as a catalyst, 3 parts of perfluorooctyltriethoxysilane as a hydrophobic agent, 3 parts of carbon fiber with a length of 100-500um, and a particle size D50 of 10um glass flakes 2 parts of powder, 2 parts of tetraethylenepentamine, 56 parts of absolute ethanol and 8 parts of deionized water as solvents.

[0050] The composition of the above mass ratio is prepared according to the following preparation method:

[0051] (1) Weigh the carbon fiber, glass flake powder and ...

Embodiment 3

[0057] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0058] The coating is composed of the following components in parts by mass:

[0059] 15 parts of γ-glycidyl etheroxypropyltrimethoxysilane as organosilane, 8 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic wear agent, N-(β-aminoethyl)-γ-aminopropyl 2 parts of trimethyl(ethyl)oxysilane and 1 part of ammonia water as catalyst, 2 parts of perfluorooctyltriethoxysilane as hydrophobic agent, 1 part of carbon fiber with a length of 100-500um, 2 parts of glass flake powder with particle size D50 of 10um, 1.5 parts of tetraethylenepentamine, 4 parts of tetraethylenetriamine, 64 parts of absolute ethanol and 8 parts of deionized water are used as solvents.

[0060] The composition of the above mass ratio is prepared according to the following preparation method:

[0061] (1) Weigh the carbon ...

technical field

[0001] The invention relates to the technical field of coatings, in particular to a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof. Background technique

[0002] Superhydrophobic surface refers to a surface with a contact angle greater than 150° and a rolling angle less than 10° and has a special wetting effect. It has special functions such as anti-icing, anti-corrosion, and anti-fouling. Self-cleaning and anti-flashover of electrical equipment, application of biomedical and bionic materials, waterproofing and anti-corrosion of pipelines, power transmission towers and cables against ice and snow in winter, and many other fields have broad application prospects.

[0003] Although the superhydrophobic coating prepared by the traditional method has a high hydrophobic angle and a low sliding angle, the coating has poor wear resistance and is not suitable for application on the interface with flowing media...

Examples

Embodiment 1

[0037] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0038] The coating is composed of the following components in parts by mass:

[0039] 10 parts of vinyltrimethoxysilane as organosilane, 5 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic wear agent, N-(β-aminoethyl)-γ-aminopropyltrimethyl(ethyl)oxy 6 parts of silane as a catalyst, 1 part of perfluorooctyltriethoxysilane as a hydrophobic agent, 1 part of carbon fiber with a length of 100-500um, 1 part of glass flake powder with a particle size of D50 of 10um, tetraethylenepentamine and tetraethylenetriamine 2 parts, 75 parts of absolute ethanol and 9 parts of deionized water as solvents.

[0040] The composition of the above mass ratio is prepared according to the following preparation method:

[0041] (1) Weigh the carbon fiber, glass flake powder and absolute ethanol according to the...

Embodiment 2

[0047] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0048] The coating is composed of the following components in parts by mass:

[0049] 2.5 parts each of vinyl trimethoxysilane and γ-glycidyl etheroxypropyl trimethoxysilane as organosilane, 9 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic anti-wear agent, N-(β-aminoethyl base)-γ-aminopropyltrimethyl(b)oxysilane 9 parts as a catalyst, 3 parts of perfluorooctyltriethoxysilane as a hydrophobic agent, 3 parts of carbon fiber with a length of 100-500um, and a particle size D50 of 10um glass flakes 2 parts of powder, 2 parts of tetraethylenepentamine, 56 parts of absolute ethanol and 8 parts of deionized water as solvents.

[0050] The composition of the above mass ratio is prepared according to the following preparation method:

[0051] (1) Weigh the carbon fiber, glass flake powder and ...

Embodiment 3

[0057] The embodiments of the present invention provide a high wear-resistant super-hydrophobic composite coating, a preparation method and a coating made thereof.

[0058] The coating is composed of the following components in parts by mass:

[0059] 15 parts of γ-glycidyl etheroxypropyltrimethoxysilane as organosilane, 8 parts of zirconium n-propoxide and 1 part of zirconium nitrate as inorganic wear agent, N-(β-aminoethyl)-γ-aminopropyl 2 parts of trimethyl(ethyl)oxysilane and 1 part of ammonia water as catalyst, 2 parts of perfluorooctyltriethoxysilane as hydrophobic agent, 1 part of carbon fiber with a length of 100-500um, 2 parts of glass flake powder with particle size D50 of 10um, 1.5 parts of tetraethylenepentamine, 4 parts of tetraethylenetriamine, 64 parts of absolute ethanol and 8 parts of deionized water are used as solvents.

[0060] The composition of the above mass ratio is prepared according to the following preparation method:

[0061] (1) Weigh the carbon ...