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Nano-hydroxyapatite antimicrobial paint and method for producing the same

A technology of nano-hydroxyapatite and antibacterial coatings, applied in the field of antibacterial coatings and their corresponding preparations, nano-hydroxyapatite antibacterial coatings and their preparation fields, can solve problems such as no application reports, and achieve continuous and stable antibacterial performance, reduction of zinc ion loss, and the effect of a simple preparation method

Active Publication Date: 2009-08-19
JIANGSU HUAJIAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even in the research literature and patents on the surface coating and modification of nano-powders, there are no materials and application reports that meet the above-mentioned characteristics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 2000 parts of pure water

[0023]Polyoxyethylene ether 150 parts

[0024] 20 parts of hydroxyethyl cellulose

[0025] Acrylic emulsion 3500 parts

[0026] Nano-hydroxyapatite fungicide 2000 parts

[0027] In the nano-hydroxyapatite fungicide, the content of zinc is 0.5wt.%. The coated nano-hydroxyapatite powder is a spherical powder with a diameter of 80-100 nanometers. The guar gum-zinc oxide composite coating is formed by coating the surface of hydroxyapatite powder with guar gum molecules and hydroxyl groups of zinc oxide colloidal particles through hydrogen bonds and partially through glutaraldehyde crosslinking. Yes, the weight ratio of guar gum to zinc oxide in the composite coating is 5:1, and the weight ratio of composite coating to hydroxyapatite is 2:100.

[0028] The present invention also provides the preparation method of this nanometer hydroxyapatite antibacterial coating, is to realize by following technical scheme:

[0029] 1. Add 1360 parts of zin...

Embodiment 2

[0033] 2000 parts of pure water

[0034] Polyoxyethylene ether 200 parts

[0035] 30 parts of hydroxyethyl cellulose

[0036] Acrylic emulsion 4500 parts

[0037] Nano-hydroxyapatite fungicide 4500 parts

[0038] In the nano-hydroxyapatite fungicide, the content of zinc is 1.2wt.%. The coated nano-hydroxyapatite powder is a spherical powder with a diameter of 80-100 nanometers. The guar gum-zinc oxide composite coating is formed by coating the surface of hydroxyapatite powder with guar gum molecules and hydroxyl groups of zinc oxide colloidal particles through hydrogen bonds and partially through glutaraldehyde crosslinking. Yes, the weight ratio of guar gum to zinc oxide in the composite coating is 1:2, and the weight ratio of composite coating to hydroxyapatite is 20:100.

[0039] The present invention also provides the preparation method of this nanometer hydroxyapatite antibacterial coating, is to realize by following technical scheme:

[0040] 1. Add 1360 parts of z...

Embodiment 3

[0044] 2000 parts of pure water

[0045] Polyoxyethylene ether 180 parts

[0046] 25 parts of hydroxyethyl cellulose

[0047] Acrylic emulsion 4000 parts

[0048] Nano-hydroxyapatite fungicide 3000 parts

[0049] In the nano-hydroxyapatite fungicide, the content of zinc is 1.2wt.%. The coated nano-hydroxyapatite powder is a spherical powder with a diameter of 80-100 nanometers. The guar gum-zinc oxide composite coating is formed by coating the surface of hydroxyapatite powder with guar gum molecules and hydroxyl groups of zinc oxide colloidal particles through hydrogen bonds and partially through glutaraldehyde crosslinking. Yes, the weight ratio of guar gum to zinc oxide in the composite coating is 1:1, and the weight ratio of composite coating to hydroxyapatite is 10:100.

[0050] The present invention also provides the preparation method of this nanometer hydroxyapatite antibacterial coating, is to realize by following technical scheme:

[0051] 1. Add 1360 parts of z...

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Abstract

The invention discloses a nano-hydroxyapatite antibacterial coating and a preparation method thereof. The coating consists of the following components based on the parts by weight: 2000 parts of water; 150-200 parts of polyethenoxy ether; 20-30 parts of droxyethylcellulose; 3500-4500 parts of acrylic emulsion; and 2000-4500 parts of nano-hydroxyapatite bactericide. nano-hydroxyapatite powder body is coated by guar gum-zinc oxide composite coating, the water resisting property and the porous structure of the nano-hydroxyapatite powder body are ensured by the chemical crosslinked action between the guar gum and the zinc oxide, zinc ion loss is reduced by the affinity interaction between the zinc oxide and zinc ion and the complexing action of hydroxyl on the guar gum to the zinc ion, and even and stable dispersion is formed by the hydrogen bonding between the hydroxyl group and the aqueous polymer of guar gum molecule. The invention has the advantages of simple preparation method and obvious effect, and effectively improves sustainable and stable antibacterial property.

Description

technical field [0001] The invention relates to a nano-hydroxyapatite antibacterial coating and a preparation method thereof, in particular to a nano-hydroxyapatite coated with a guar gum-zinc oxide organic-inorganic composite coating and doped with a certain proportion of zinc ions. The antibacterial coating formed by uniformly and stably dispersing limestone in pure acrylic emulsion and the corresponding preparation method belong to the field of functional coatings. Background technique [0002] Coating functionalization has become the main trend of current coating development. In addition to the protective effect on walls, floors, and various household items, different functional coatings can also play various functions such as antibacterial, adsorption, antistatic, and electromagnetic shielding. Antibacterial coating is one of the very important ones. [0003] Most of the antibacterial coatings are composed of antibacterial agents and polymer matrix. Among them, the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/14C09D7/12
Inventor 王吉骞王立群蔡瑞金颜安林
Owner JIANGSU HUAJIAN CONSTR