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A kind of preparation method of mildew-proof and antibacterial latex paint

A technology of anti-mildew and antibacterial latex paint, applied in latex paint, antifouling/underwater paint, paint containing biocide, etc., can solve the problems of short sterilization time, poor compatibility and poor durability of latex paint, and achieve a combination The effect of enhancing the force, enhancing the binding force, and improving the utilization rate of the specific surface area

Active Publication Date: 2019-11-15
广州市奥捷体育设施工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is aimed at the poor compatibility between the inorganic antibacterial agent in the common antifungal and antibacterial latex paint and the latex paint matrix, which leads to the problems of short sterilization time, easy dissolution and poor durability of the latex paint. A kind of preparation method of mildew-proof and antibacterial latex paint

Method used

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  • A kind of preparation method of mildew-proof and antibacterial latex paint

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example 1

[0027]Be 1:10 by mass ratio konjac starch and the sodium silicate solution that mass fraction is 30% and mix to obtain mixed solution, be that 1mol / L hydrochloric acid is regulated mixed solution pH to 5.5 with concentration, stir reaction 20min to obtain pre-reaction liquid; The reaction solution was heated to 110°C, and the stirring reaction was continued for 1 hour to obtain a reaction solution, which was obtained by mixing a 10% sodium hydroxide solution with a mass fraction of 10% and a 20% lithium metaaluminate solution at a mass ratio of 1:2:10. Precursor solution: put the precursor solution into the high-pressure hydrothermal kettle, then add potassium thiocyanate with 2% of the mass of the precursor solution and 5% phenylalanine solution of the mass of the precursor solution to the high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle , heated to 200°C under 0.9MPa, and hydrothermally reacted for 20h; after the hydrothermal reaction was comp...

example 2

[0029] Be 1:10 by mass ratio konjac starch and the sodium silicate solution that mass fraction is 30% and mix to obtain mixed solution, be that 1mol / L hydrochloric acid is regulated mixed solution pH to 6.0 with concentration, stir reaction 25min to obtain pre-reaction liquid; Heat the reaction solution to 115°C, continue to stir and react for 1.5 hours to obtain a reaction solution, mix 10% sodium hydroxide solution with a mass fraction of 10% and lithium metaaluminate solution with a mass fraction of 20% at a mass ratio of 1:2:10 Obtain the precursor solution; put the precursor solution in the high-pressure hydrothermal kettle, then add potassium thiocyanate with 2% of the quality of the precursor solution and 5% of the phenylalanine solution of the quality of the precursor solution in the high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle, heated to 210°C under 1.0MPa, and hydrothermally reacted for 22 hours; after the hydrothermal reaction was...

example 3

[0031] Be 1:10 by mass ratio konjac starch and the sodium silicate solution that mass fraction is 30% mix to obtain mixed solution, be that 1mol / L hydrochloric acid is regulated mixed solution pH to 6.5 with concentration, stir reaction 30min to obtain pre-reaction liquid; The reaction solution was heated to 120°C, and continued to stir for 2 hours to obtain a reaction solution, which was obtained by mixing 10% sodium hydroxide solution with a mass fraction of 10% and a lithium metaaluminate solution with a mass fraction of 20% at a mass ratio of 1:2:10. Precursor solution: put the precursor solution into the high-pressure hydrothermal kettle, then add potassium thiocyanate with 2% of the mass of the precursor solution and 5% phenylalanine solution of the mass of the precursor solution to the high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle , heated to 220°C under 1.2MPa, and hydrothermally reacted for 24 hours; after the hydrothermal reaction w...

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Abstract

The invention relates to the technical field of coating preparation, in particular to a preparation method of an anti-mold and anti-bacterial latex paint. The preparation method comprises the following steps: firstly, taking polyhydroxy konjac starch as a structure-oriented template, mixing the polyhydroxy konjac starch with sodium silicate, and finally, blending a mixture with a latex paint basematerial to obtain the anti-mold and anti-bacterial latex paint. By use of the anti-mold and anti-bacterial latex paint, the adsorption activity of a molecular sieve is improved, and a binding force between an inorganic antibacterial agent and the latex paint base material is favorably enhanced; the molecular sieve is further modified by using organosiloxane and organic acid, so that active hydroxyls on the surface of the molecular sieve and small organic molecules undergo condensation reaction, a binding force between the inorganic antibacterial agent and the latex paint base material is enhanced and the compatibility between the inorganic antibacterial agent and the latex paint base material is improved. The molecular sieve disclosed by the invention has unique properties of adsorption and selective ion exchange; silver has a sterilizing effect, and the latex paint can slowly release silver ions; when trace silver ions are in contact with a microbial cell membrane, bacterial cells die due to loss of division and proliferation capabilities, and a persistent sterilizing effect is realized; the anti-mold and anti-bacterial latex paint has a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a method for preparing an anti-mildew and anti-bacterial latex paint. Background technique [0002] Latex paints are water-based paints, and their paint film performance is much better than solvent-based paints. Organic solvents accounting for half of solvent-based paints are replaced by water here, so the toxicity of organic solvents is basically completely solved by latex paints. . Latex paint is made of some polymer aqueous solution to form a film. In addition to water and different types of polymers or polymers that are safe and harmless, it also contains a small amount of emulsifier and a small amount of unpolymerized free monomer. The free monomer is Some volatile small molecular substances have different degrees of toxicity problems. The concentration of free monomers in environmental protection paint is controlled below 0.1%, and the amount of additives used is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D5/02C09D5/14
CPCC08L2205/02C08L2205/035C09D5/025C09D5/14C09D133/04
Inventor 谷春芽林茂兰陈可
Owner 广州市奥捷体育设施工程有限公司
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