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Antibacterial and anti-mildew aqueous shell powder and nano-silver coating and production device thereof

A nano-silver antibacterial and water-based coating technology, applied in the field of coatings, can solve the problems of poor air permeability, inability to adjust humidity and remove harmful odors, unsustainable development of productivity, and easy agglomeration of coatings. Excellent mildew effect and enhanced antibacterial and antifungal effect

Active Publication Date: 2018-02-23
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor air permeability cannot regulate humidity and remove harmful odors
The cost rises with the price of oil, and the quality of the product declines, so it cannot be directly used for cement lime alkaline walls
Extensive use of petroleum acrylic acid emulsion as base binder and high energy consumption titanium dioxide, high energy consumption, high pollution emissions, high production costs, high resource consumption
Excessive consumption of non-renewable petroleum resources causes high greenhouse gas emissions and climate warming, and man and nature cannot live in harmony. Productivity is unsustainable.
The high investment in the industry is directly proportional to the pollution, wasting energy and destroying the natural ecology, and the earth's environment is overwhelmed
[0005] Moreover, the devices for producing coatings in the prior art are ubiquitous, and the produced coatings are prone to agglomeration, sedimentation, and insufficient reaction of raw materials, etc., which cause the produced coatings to have unsatisfactory effects in actual use.

Method used

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  • Antibacterial and anti-mildew aqueous shell powder and nano-silver coating and production device thereof
  • Antibacterial and anti-mildew aqueous shell powder and nano-silver coating and production device thereof
  • Antibacterial and anti-mildew aqueous shell powder and nano-silver coating and production device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A shell powder nano-silver antibacterial and mildew-proof water-based paint, the water-based paint is composed of the following components and preferred parts by weight: 27 parts of modified shell powder, 6 parts of titanium dioxide, 10 parts of nano-silver, 4 parts of adhesive, 34 parts of water, The adhesive is composed of the following components and parts by weight: 32 parts of polyurethane prepolymer, 2 parts of E03, 2 parts of butanone, 0.35 parts of polyglycerin fatty acid ester, and 14 parts of cyclohexanone. The polyurethane prepolymer is composed of the following polyε- 98 parts of caprolactone diol, 33 parts of 2,4-toluene diisocyanate, 0.7 part of dibutyltin dilaurate, 2 parts of xylene, and the epoxy resin is E03 brand bisphenol A epoxy resin.

[0031] The preparation steps of the modified shell powder are as follows: take 100 mesh mussel shell powder and add it into the mixed solution of 4wt% citric acid solution and 2wt% N-1-naphthylethylenediamine dihydro...

Embodiment 2

[0035] A shell powder nano-silver antibacterial and mildew-proof water-based coating, the water-based paint is composed of the following components and parts by weight: 38 parts of modified shell powder, 7 parts of titanium dioxide, 10 parts of nano-silver, 4 parts of adhesive, 30 parts of water, adhesive The adhesive is composed of the following components and parts by weight: 32 parts of polyurethane prepolymer, 4 parts of E03, 2 parts of methyl ethyl ketone, 0.35 parts of polyglycerin fatty acid ester, 14 parts of cyclohexanone, and the polyurethane prepolymer is composed of the following polyε-hexyl 100 parts of lactone diol, 31 parts of 2,4-toluene diisocyanate, 0.62 parts of dibutyltin dilaurate, 3 parts of xylene, and the epoxy resin is E03 brand bisphenol A epoxy resin.

[0036] The preparation steps of the modified shell powder are as follows: take 120 mesh mussel shell powder and add it into the mixed solution of 3wt% citric acid solution and 1wt% N-1-naphthylethylene...

Embodiment 3

[0039] The test of the shell powder nano-silver antibacterial and mildew-proof water-based paint of the present invention: the water-based paint prepared by the present invention is compared with the antibacterial and mildew-proof paint (control group) in the supermarket randomly selected in Zhoushan, and the paint of the present invention and the contrast The groups of coatings were tested on the walls respectively, and the experimental results are as follows:

[0040] 1) Bacteriostasis and mildew, the coatings of Examples 1 and 2 of the present invention and the control group are coated on the walls of the room, the coating area is the same, the doors and windows of the room are opened, and the wall is tested after 2 months coli and staphylococcus aureus on the surface and the moldy area (the moldy area accounts for the coating area of ​​the paint), the situation is as follows:

[0041]

[0042] 2) Adhesion, flexibility, drying time and impact resistance, according to GB1...

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Abstract

The invention discloses an antibacterial and anti-mildew aqueous shell powder and nano-silver coating and a production device thereof, and belongs to the technical field of coatings. The aqueous coating comprises modified shell powder, titanium dioxide, nano-silver, an adhesive and water. The production device comprises a reactor, the upper end of the reactor is respectively connected with a solidmixing cylinder and a liquid mixing cylinder, the upper end of the solid mixing cylinder is connected with a feeding bin through a feeding tube, the tail end of the feeding tube is connected with a blowing pump, the bottom and the side surface middle part of the reactor are connected with a circulation pump through communicating pipelines, and the communicating pipeline connected to the top of the circulation pump is provided with a discharge port. The coating has the advantages of low cost, small energy consumption, non-toxicity, good adhesion, good water resistance, good antibacterial property, good mildew resistance and good other comprehensive mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a shell powder nano-silver antibacterial and mildew-proof water-based coating and a production device thereof. Background technique [0002] The so-called paint is coated on the surface of the object 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, with or without adding pigments, fillers, adding The corresponding additives are viscous liquids prepared with organic solvents or water. [0003] Indoor paints are mainly divided into two types: water-based paints and solvent-based paints. The main source of pollution is solvent-based paints, and the use of environmentally friendly water-based paints can completely eliminate the worry about paint pollution. Experts from the China Paint Industry Association believe that any solvent-based paint will contain 50% or more organic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D1/00C09D7/61B01F13/10B01J19/18B01J4/00
CPCB01J4/005B01J19/18C09D1/00C09D5/14B01F33/813
Inventor 刘先勇刘艳萍李世杰陈庆国
Owner ZHEJIANG OCEAN UNIV
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