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Novel pyrithione zinc/montmorillonite/tourmaline composite antibacterial anion releasing agent and preparation method thereof

A zinc pyrithione and compound antibacterial technology, which is applied in botany equipment and methods, biocides, disinfectants, etc., can solve the problems of antibacterial performance decline, discoloration, etc., and achieve fast sterilization speed, wide application, and instant antibacterial effect Good results

Inactive Publication Date: 2013-07-17
DANYANG QIDE AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ZPT has many advantages, Sakkas VA, Shibata K, Yamaguchi Y, et al. Aqueous phototransformation of zinc pyrithione degradation kinetics and by product identification by liquid chromatography-atmospheric pressure chemicalionisation mass spectrometry[J]. Journal of Chromatography A, 2007, 1144(2): 175-182, reported that ZPT is easily degraded into N-pyridine oxide, 2-mercaptopyridine, bispyridinethione, pyridine-2-sulfonic acid and other products under light, resulting in decreased antibacterial performance and discoloration. problems, which limit its application

Method used

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  • Novel pyrithione zinc/montmorillonite/tourmaline composite antibacterial anion releasing agent and preparation method thereof
  • Novel pyrithione zinc/montmorillonite/tourmaline composite antibacterial anion releasing agent and preparation method thereof
  • Novel pyrithione zinc/montmorillonite/tourmaline composite antibacterial anion releasing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) stirring and dispersing calcium-based montmorillonite in distilled water to make a uniform slurry with a mass fraction of 5%;

[0029] (2) Slowly add zinc chloride having a zinc content of 5% of the mass of montmorillonite to the slurry in step (1) under stirring, and stir at a constant temperature of 60° C. for 3 hours;

[0030] (3) washing the slurry in step (2) 3 times, filtering, then drying and pulverizing the obtained filter cake to 300 mesh, to obtain zinc-loaded montmorillonite;

[0031] (4) the zinc-loaded montmorillonite and dimethyl sulfoxide in the step (3) are made into a slurry with a mass fraction of 5%;

[0032](5) Add tourmaline equivalent to 20% of the quality of zinc-loaded montmorillonite into the slurry of step (4), stir vigorously for 20 minutes, then slowly add sodium pyrithione with 10% of the quality of zinc-loaded montmorillonite under stirring into the mixed slurry, detect and adjust the pH value of the slurry to 3 with 1mol / L hydrochlori...

Embodiment 2

[0035] (1) stirring and dispersing sodium-calcium-based montmorillonite in distilled water to make a uniform slurry with a mass fraction of 10%;

[0036] (2) Slowly add zinc sulfate with a zinc content of 10% of the mass of montmorillonite to the slurry in step (1) under stirring, and stir at a constant temperature at 70° C. for 4 hours;

[0037] (3) washing the slurry in step (2) 4 times, filtering, then drying and pulverizing the obtained filter cake to 400 mesh, to obtain zinc-loaded montmorillonite;

[0038] (4) the zinc-loaded montmorillonite and dimethyl sulfoxide in the step (3) are made into a slurry with a mass fraction of 10%;

[0039] (5) Add tourmaline equivalent to 80% of the quality of zinc-loaded montmorillonite into the slurry of step (4), stir vigorously for 20 minutes, then slowly add 20% sodium pyrithione to the mixed slurry under stirring, and detect And use 1mol / L hydrochloric acid to adjust the pH value of the slurry to 4, and stir at a constant temperat...

Embodiment 3

[0042] (1) stirring and dispersing sodium-based montmorillonite in distilled water to make a uniform slurry with a mass fraction of 10%;

[0043] (2) Slowly add zinc nitrate with a zinc content of 7% of the mass of montmorillonite to the slurry in step (1) under stirring, and stir at a constant temperature of 65° C. for 3 hours;

[0044] (3) washing the slurry in step (2) 4 times, filtering, then drying and pulverizing the obtained filter cake to 400 mesh, to obtain zinc-loaded montmorillonite;

[0045] (4) the zinc-loaded montmorillonite and dimethyl sulfoxide in the step (3) are made into a slurry with a mass fraction of 10%;

[0046] (5) Tourmaline equivalent to 60% of zinc-loaded montmorillonite quality is added in the slurry of step (4), vigorously stirred for 20 minutes, and then 30% sodium pyrithione was slowly added to the slurry of step (4) under stirring. In the slurry, detect and adjust the pH value of the slurry to 4 with 1mol / L hydrochloric acid, and stir at a co...

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Abstract

The invention discloses a novel pyrithione zinc / montmorillonite / tourmaline composite antibacterial anion releasing agent and a preparation method thereof. The antibacterial agent takes pyrithione zinc as an antibacterial active ingredient, and takes montmorillonite as a carrier. The preparation method comprises the following steps of: firstly, preparing a zinc-carrying montmorillonite precursor by using an ion-exchange method; then, in a dimethyl sulfoxide solvent, introducing tourmaline and pyrithione anions into montmorillonite layers; through the complexation of pyrithione anions and zinc ions, generating pyrithione zinc in an in-situ mode; and by using the electrostatic interaction of the three, forming composite powder. The antibacterial agent disclosed by the invention has the characteristics of no toxicity, good antibacterial effect, high antibacterial efficiency, wide antibacterial spectrum, lasting antibacterial property, no color change, high temperature resistance, high anion release quantity and the like, and can be used as a functional additive to be applied to the fields of plastics, coatings, rubber, fiber, adhesives, hair-care products, water treatment agents, ship protecting agents, antibacterial woods and the like.

Description

technical field [0001] The invention relates to zinc pyrithione / montmorillonite / tourmaline composite antibacterial anion releasing agent and a preparation method thereof. Background technique [0002] With the increasing awareness of environmental protection, people gradually realize that there are a large number of germs growing on the surface of daily necessities, which pose a great threat to human health. In order to effectively inhibit and kill the epiphytic bacteria on the surface of daily necessities, antibacterial materials are used As an additive, it is a simple and effective method to make various antibacterial products. The antibacterial performance of antibacterial products is closely related to the type of antibacterial agent added. Antibacterial agents can generally be divided into natural antibacterial agents, organic antibacterial agents and inorganic antibacterial agents according to their different materials and sources. Natural antibacterial agents have g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N43/40A01P1/00A61L9/013A61L101/02A61L101/44
Inventor 杨晋涛张浩良唐华平王宏建唐彩萍丁家伟耿德英
Owner DANYANG QIDE AUTO PARTS CO LTD
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