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Preparation method of PU antibacterial coating

A technology of antibacterial coatings and pigments, which is applied in the direction of anti-corrosion coatings, fire-proof coatings, anti-fouling/underwater coatings, etc. It can solve the problems of increasing operating time for workers, wear resistance, poor anti-bacterial effect, and affecting use, and achieves good results. Effect of market value, increase coverage, increase antibacterial effect

Inactive Publication Date: 2021-06-18
苏州燕雀新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many problems in the use of PU coatings. Some existing PU coatings have poor wear resistance and antibacterial effects. The operating time of the worker affects the use and is not convenient for the worker to operate

Method used

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  • Preparation method of PU antibacterial coating

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Effect test

Embodiment 1

[0022] A kind of PU antibacterial coating preparation method, described preparation method comprises the steps:

[0023] (1) Preparation of mixed solution A, fully mix polyurethane particle powder, dispersant, filler, pigment, wear-resistant ceramic micropowder and defoamer, dissolve in water, stir evenly, and obtain mixed solution A for later use;

[0024] (2) Preparation of mixed solution B, adding mixed solution A in step (1) into the nano-silver ion solution, stirring evenly with a stirrer, to obtain mixed solution B for later use;

[0025] (3) Preparation of PU antibacterial coating, adding the mixed solution B in step (2) into a leveling agent, a drier and a curing agent, mixing, stirring and curing to prepare a PU antibacterial coating.

[0026] Preferably, the wear-resistant ceramic micropowder in the step (1) is added to a sand mill for ultra-fine grinding, and the polyurethane-based particle powder is screened through a screen for use. The sand mill is also called a ...

Embodiment 2

[0037] A kind of PU antibacterial coating preparation method, described preparation method comprises the steps:

[0038] (1) Preparation of mixed solution A, fully mix polyurethane particle powder, dispersant, filler, pigment, wear-resistant ceramic micropowder and defoamer, dissolve in water, stir evenly, and obtain mixed solution A for later use;

[0039] (2) Preparation of mixed solution B, adding mixed solution A in step (1) into the nano-silver ion solution, stirring evenly with a stirrer, to obtain mixed solution B for later use;

[0040] (3) Preparation of PU antibacterial coating, adding the mixed solution B in step (2) into a leveling agent, a drier and a curing agent, mixing, stirring and curing to prepare a PU antibacterial coating.

[0041]Preferably, the wear-resistant ceramic micropowder in the step (1) is added to a sand mill for ultra-fine grinding, and the polyurethane-based particle powder is screened through a screen for use. The sand mill is also called a b...

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Abstract

The invention discloses a preparation method of PU antibacterial coating, which comprises: a step of preparing a mixed solution A, namely a step of completely mixing polyurethane particle powder, a dispersant, a filler, pigments, wear-resistant ceramic micro-powder and a defoaming agent, dissolving the mixture in water, and uniformly stirring to obtain the mixed solution A for later use; a step of preparing a mixed solution B; and a step of preparing the PU antibacterial coating. According to the preparation method of the PU antibacterial coating, preparation is simple, the adsorbability, weather resistance, durability, scrubbing resistance, corrosion resistance and high temperature resistance of the coating can be improved through the wear-resistant ceramic micro powder, the possibility of generating spots and blackspots during brushing can be reduced through the arranged flatting agent, the coverage is improved, and a formed film is uniform and natural. The arranged dispersant can uniformly disperse solid and liquid particles of inorganic and organic pigments which are difficult to dissolve in liquid, the wetting dispersing agent is used for reducing time and energy required for completing the dispersion process, the dispersed pigment dispersion is stabilized, and the surface properties of the pigment particles are modified.

Description

technical field [0001] The invention relates to a preparation method of PU antibacterial paint, in particular to a preparation method of PU antibacterial paint, and belongs to the technical field of preparation and application of PU antibacterial paint. Background technique [0002] Coatings, traditionally called paints in China, are coatings on the surface of objects to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, oil, or emulsion. Adding or not adding pigments, fillers, adding corresponding additives, and preparing viscous liquids with organic solvents or water; the authoritative book "Painting Technology" in the Chinese coatings industry defines it this way: "Painting is a kind of material. This material can be coated on the surface of objects by different construction techniques to form a solid film with firm adhesion, certain strength and continuity. The film formed in this way is commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/14C09D7/61C09D5/08
CPCC09D5/08C09D5/14C09D5/18C09D175/04C09D7/61C08K3/00
Inventor 柴燕
Owner 苏州燕雀新材料科技有限公司