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Preparation method of chlorine dioxide disinfection sustained-release gel

A slow-release gel and chlorine dioxide technology, applied in botany equipment and methods, disinfectants, chemicals for biological control, etc., can solve problems such as product failure, high space concentration, and secondary pollution, and achieve The storage loss is lower, the gel system is stable, and the storage loss rate is improved.

Active Publication Date: 2021-02-09
辽宁蓝水化学品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorine dioxide is unstable and easily decomposes into oxygen and chlorine when heated or exposed to light, causing an explosion
The problem is "liquefaction and anti-thinning". When the gel is liquefied and disintegrated, the release rate of chlorine dioxide is greatly accelerated, and the product will fail within a few days
The rapid release of chlorine dioxide will also lead to high space concentration and cause secondary pollution

Method used

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  • Preparation method of chlorine dioxide disinfection sustained-release gel
  • Preparation method of chlorine dioxide disinfection sustained-release gel
  • Preparation method of chlorine dioxide disinfection sustained-release gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of manufacture method of chlorine dioxide disinfection sustained-release gel, its steps are as follows:

[0036] The first step: prepare the gel prepolymer; take 1.23 parts by mass of concentrated sulfuric acid with a mass percentage of 98% and add it dropwise to 12 parts by mass of purified water under stirring to make a dilute sulfuric acid solution for later use; take 0.72 parts by mass of γ-shrink Add glyceryl etheroxypropyltrimethoxysilane, 52 parts by mass of tetraethoxysilane, and 0.51 parts by mass of dodecyl diphenyl ether disulfonic acid sodium salt into the reaction kettle for stirring, and add the prepared dilute sulfuric acid solution Continue stirring in the reaction kettle until it becomes a transparent and uniform hydrolyzate, add 73 parts by mass of purified water to the reaction kettle and stir evenly. After the material in the reaction kettle is heated to 55°C, continue stirring for 35 minutes. The condenser of the reaction kettle Pass the circ...

Embodiment 2

[0040] A kind of manufacture method of chlorine dioxide disinfection sustained-release gel, its steps are as follows:

[0041] The first step: prepare the gel prepolymer; take 1.27 parts by mass of concentrated sulfuric acid with a mass percentage of 98% and add it dropwise to 13 parts by mass of purified water under stirring to make a dilute sulfuric acid solution for later use; take 0.77 parts by mass of γ-shrink Add glyceryl etheroxypropyl trimethoxysilane, 53.5 parts by mass of tetraethoxysilane, and 0.53 parts by mass of sodium dodecyl diphenyl ether disulfonic acid into the reactor for stirring, and add the prepared dilute sulfuric acid solution Continue stirring in the reaction kettle until it becomes a transparent and uniform hydrolyzate, add 78 parts by mass of purified water to the reaction kettle and stir evenly, and continue stirring for 35-45 minutes after the material in the reaction kettle is heated to 65°C. The condenser is fed with circulating water, and the v...

Embodiment 3

[0045] A kind of manufacture method of chlorine dioxide disinfection sustained-release gel, its steps are as follows:

[0046] The first step: prepare the gel prepolymer; take 1.25 parts by mass of concentrated sulfuric acid with a mass percentage of 98% and add it dropwise to 12.5 parts by mass of purified water under stirring to make a dilute sulfuric acid solution for later use; take 0.75 parts by mass of γ-shrink Add glyceryl etheroxypropyl trimethoxysilane, 52.8 parts by mass of tetraethoxysilane, and 0.52 parts by mass of dodecyl diphenyl ether disulfonic acid sodium salt into the reaction kettle for stirring, and add the prepared dilute sulfuric acid solution Continue stirring in the reaction kettle until it becomes a transparent and uniform hydrolyzate, add 75 parts by mass of purified water to the reaction kettle and stir evenly, and continue stirring for 40 minutes after the material in the reaction kettle is heated to 60°C. Through circulating water, start the vacuu...

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Abstract

The invention discloses a preparation method of chlorine dioxide disinfection sustained-release gel, and belongs to the field of disinfection and sterilization and air purification. The preparation method of the chlorine dioxide disinfection sustained-release gel comprises the steps of preparing a gel prepolymer, adding gamma-glycidyl ether oxypropyl trimethoxy silane, tetraethoxysilane and sodiumdodecyl diphenyl ether disulfonate into a reaction kettle, stirring, adding a sulfuric acid solution into the reaction kettle, continuing stirring until hydrolysis, adding water, and uniformly stirring, carrying out reduced pressure distillation, and cooling to room temperature to prepare a gel prepolymer; preparing a sodium chlorite aqueous solution; and canning the gel prepolymer and a sodium chlorite aqueous solution according to a ratio of 1: 1, sealing, and standing to obtain the chlorine dioxide disinfection sustained-release gel. The gel prepared by the method disclosed by the invention is permanently non-liquefied and non-diluted, can keep a good gel state, and can have a shelf life of more than one year under a sealed lightproof room-temperature condition, and the storage loss ofchlorine dioxide is lower than 10%.

Description

technical field [0001] The invention relates to a manufacturing method of chlorine dioxide disinfection slow-release gel, which belongs to the field of disinfection and air purification. Background technique [0002] Chlorine dioxide is a broad-spectrum biocide, which has the advantages of good biocidal effect, wide applicable pH, low toxicity, and less halogenated hydrocarbons, which are potential carcinogens. It is widely used in drinking water treatment, industrial cooling water treatment, waste water, etc. Processing, air deodorization and sterilization, food preservation and preservation and other fields. [0003] Chlorine dioxide is a yellow-green or orange-red gas at room temperature. Chlorine dioxide vapor resembles chlorine and nitric acid in appearance and taste, and has a suffocating odor. When cooled and over -40°C, it becomes a dark red or reddish brown liquid, and when the temperature is lower than -59°C, it becomes an orange-yellow solid. Chlorine dioxide is...

Claims

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Application Information

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IPC IPC(8): A01N25/18A01N25/10A01N25/34A01N59/00A01P1/00A01P3/00C08G77/14C08G77/06
CPCA01N25/18A01N25/10A01N25/34A01N59/00C08G77/14C08G77/06Y02W10/37
Inventor 赵东育
Owner 辽宁蓝水化学品制造有限公司
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