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Ultraviolet photosensitive corrosion-resistant and wear-resistant filler, preparation method thereof and application of ultraviolet photosensitive corrosion-resistant and wear-resistant filler in coating

An anti-corrosion and wear-resistant, ultraviolet light technology, applied in the field of coatings, can solve the problems of poor anti-corrosion and wear resistance, poor bonding performance between fillers and coating matrix, poor filler dispersion, etc., to enhance anti-corrosion performance and wear resistance, and improve dispersion , to solve the effect of uneven dispersion

Active Publication Date: 2022-07-29
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the problems of poor anticorrosion and wear resistance of existing fillers in the background technology, poor bonding performance between fillers and paint matrix, and poor dispersibility of fillers in paints, and provides a UV-sensitive anticorrosion and wear-resistant filler

Method used

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  • Ultraviolet photosensitive corrosion-resistant and wear-resistant filler, preparation method thereof and application of ultraviolet photosensitive corrosion-resistant and wear-resistant filler in coating
  • Ultraviolet photosensitive corrosion-resistant and wear-resistant filler, preparation method thereof and application of ultraviolet photosensitive corrosion-resistant and wear-resistant filler in coating
  • Ultraviolet photosensitive corrosion-resistant and wear-resistant filler, preparation method thereof and application of ultraviolet photosensitive corrosion-resistant and wear-resistant filler in coating

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preparation example Construction

[0064] In the preparation process of the ultraviolet photosensitive composite filler, the red phosphorus and the photosensitive filler undergo a hydrothermal reaction to form one or more phosphorus atom-based colloidal products, which can promote phosphorus passivation of the metal substrate. Due to the small size of the phosphorus atom-based colloid component, it is easy to disperse into the coating system, and can be evenly distributed on the surface of the metal substrate, which promotes phosphorus passivation of the metal substrate.

[0065] The invention also provides the application of a functional ultraviolet photosensitive filler in the coating, comprising the following steps:

[0066] (1) After the functional photosensitive composite filler is exposed to ultraviolet light, it is de-dispersed into a mixed solution of de-ethanol and ethyl acetate to obtain a filler dispersion.

[0067] (2) Disperse epoxy resin, phenolic resin, fluorocarbon resin, polyurea resin, aliphat...

Embodiment 1

[0071] (1) Pretreatment of metal surface:

[0072] Use 240-mesh and 400-mesh sandpaper to polish the metal surface in turn, then put it into ethanol solution for ultrasonic cleaning, or treat the metal substrate with a high-pressure water jet with a water pressure greater than 20 MPa to remove dust, grease, etc. on the surface of the metal substrate Impurities, of which the concentration of the ethanol solution is 75%, are taken out and dried for later use.

[0073] (2) Preparation of UV photosensitive composite filler:

[0074] 150 parts of titanium dioxide, 100 parts of reducing titanium dioxide, 20 parts of zinc oxide, 100 parts of nickel oxide and 80 parts of tin oxide are dispersed in 50 parts of deionized water to obtain a photosensitive filler mixed solution. Disperse 3 parts of graphene oxide, 5 parts of molybdenum disulfide, 2 parts of montmorillonite, 50 parts of carbon nanotubes, 20 parts of carbon fibers and 40 parts of glass fibers into 150 parts of anhydrous eth...

Embodiment 2

[0086] (1) Pretreatment of metal surface:

[0087] Use 600-mesh and 800-mesh sandpaper to polish the metal surface in turn, then put it into ethanol solution for ultrasonic cleaning, or treat the metal substrate with a high-pressure water jet with a water pressure greater than 15 MPa to remove dust, grease, etc. on the surface of the metal substrate Impurities, of which the concentration of the ethanol solution is 75%, are taken out and dried for later use.

[0088] (2) Preparation of UV photosensitive composite filler:

[0089] 250 parts of titanium dioxide, 50 parts of reducing titanium dioxide, 150 parts of cadmium sulfide and 150 parts of tungsten oxide are dispersed in 50 parts of deionized water to obtain a photosensitive filler mixed solution. Disperse 50 parts of graphene, 30 parts of hexagonal boron nitride, 20 parts of mica, 10 parts of flake carbonyl iron and 15 parts of rod-shaped ceria into 150 parts of anhydrous ethanol solution to obtain a mixed solution of aux...

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Abstract

The invention relates to an ultraviolet photosensitive anti-corrosion wear-resistant functional filler which comprises the following components in parts by weight: 150-300 parts of ultraviolet photosensitive main filler; 150 to 300 parts of an ultraviolet photosensitive auxiliary filler; 10 to 110 parts of a flaky filler; 15 to 110 parts of a rod-like material; 10-50 parts of a chemical modifier; and 5-20 parts of red phosphorus. The preparation method of the filler comprises the following steps: uniformly mixing and stirring the photosensitive main filler, the photosensitive auxiliary filler, the flaky filler, the rod-like material, the deionized water, the chemical modifier and the red phosphorus in proportion, carrying out hydrothermal reaction at 50-350 DEG C, filtering, washing, drying, grinding and grading to obtain the ultraviolet photosensitive anti-corrosion wear-resistant functional filler. The hydrophobicity of the photosensitive material is improved through surface modification, the dispersity of the filler in the coating is improved by means of the catalytic characteristic of the photosensitive material, the cross-linking performance of the filler and a polymer resin matrix is improved through a pre-cross-linking reaction, and finally the composite coating is endowed with excellent corrosion resistance and wear resistance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an ultraviolet photosensitive anti-corrosion and wear-resistant filler, a preparation method thereof, and application in coatings. Background technique [0002] Metal corrosion has brought a lot of economic losses and major safety hazards to human society, resulting in a decrease in the service life of some equipment and increased maintenance costs for enterprises. Therefore, it is necessary to slow down the corrosion process of metals. In recent years, researchers have proposed various anti-corrosion strategies, such as surface alloying, adding corrosion inhibitors, adopting cathodic protection measures, and coating metal surfaces with protective layers. Among them, surface coating technology has received extensive attention due to its simple construction and stable performance. Among all metal protective layers, organic coatings exhibit better water repellency and are widely used. ...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D7/61C09D7/62C09D161/06C09D175/02C09D163/00C09D127/12
CPCC09D5/08C09D7/61C09D7/62C09D7/70C09D161/06C09D163/00C09D127/12C08K2003/2241C08K2003/2296C08K2003/2293C08K2003/2231C08K2003/3009C08K2003/026C08K2003/2258C08K2003/3027C08K2003/385C08K2003/2289C08K2003/2244C08K2003/2255C08K2201/011C08L75/02C08K3/22C08K3/042C08K3/30C08K3/346C08K3/041C08K7/06C08K7/14C08K3/02C08K9/02C08K9/04C08K13/06C08L61/06C08K3/38C08K3/34C08K7/00C08K9/08
Inventor 王池嘉汪怀远王子华刘姝依杨烨铭崔喜雯
Owner NORTHEAST GASOLINEEUM UNIV
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