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Chlorine dioxide disinfection gel and preparation method thereof

A disinfection gel and chlorine dioxide technology, applied in chemical instruments and methods, botanical equipment and methods, disinfection, etc., can solve the problems of increased storage difficulty, difficult degradation of polymer materials, pollution, etc.

Active Publication Date: 2020-09-29
厦门庚能新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN102160552 discloses a controlled and slow-release coated chlorine dioxide disinfectant, which is composed of an outer controlled and slow-release polymer coating layer, a middle water-retaining polymer material and a mixed layer formed by chlorine dioxide generating substances. The material is difficult to degrade and will pollute the environment
Patent CN101455849A discloses a kind of air purifier, is made up of A, B two kinds of components, and A component contains stable chlorine dioxide solution, and two kinds of components are stored separately, mix again when using, because chlorine dioxide The poor stability of the solution increases the difficulty of preservation, so an environmentally friendly chlorine dioxide disinfectant that is easy to store and transport is urgently needed on the market

Method used

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  • Chlorine dioxide disinfection gel and preparation method thereof
  • Chlorine dioxide disinfection gel and preparation method thereof

Examples

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preparation example Construction

[0025] The following will be combined with figure 1 The present invention is described in detail, the present invention proposes a kind of preparation method of chlorine dioxide disinfection gel, comprises the following steps:

[0026] Step S1: Prepare a mixed solution of 95 to 100 parts of tetraethyl orthosilicate, 3 to 6 parts of methyltriethoxysilane and 15 to 30 parts of hydrochloric acid in parts by mass, and hydrolyze while stirring. After hydrolysis, there will be by-product ethanol generated, and a clear solution was obtained;

[0027] Step S2: Add 5-10 parts of chelating agent and 0.5-5 parts of slow-release agent into the clear solution, and continue stirring for 30 minutes to obtain a reaction solution;

[0028] Step S3: At a temperature of 40-50° C., the ethanol is partially extracted by vacuum distillation to obtain a sol solution;

[0029] Step S4: Add 1-10 parts of stabilizer and 1-10 parts of chlorite to the sol solution, and continue stirring to obtain a sol...

Embodiment 1

[0040] A preparation method for chlorine dioxide disinfection gel, comprising the following steps:

[0041] (1) Take 100 parts of tetraethyl orthosilicate, 4 parts of methyltriethoxysilane, add 20 parts of hydrochloric acid with a substance concentration of 0.17M to form a mixed solution, and carry out hydrolysis reaction while stirring, when orthosilicic acid When the hydrolysis of tetraethyl ester was completed, a clear solution was obtained and by-product ethanol was generated;

[0042] (2) Add 10 parts of 0.1M disodium edetate and 4 parts of polyethylene glycol into the clear solution, and continue stirring for 30 minutes to obtain a reaction solution;

[0043] (3) At 40°C, the by-product ethanol, which accounts for 30-40%, 40-50%, 50-60%, and 60-70% of the mass of the reaction solution, is respectively extracted by vacuum distillation, and parallel experiments are carried out to obtain the sol liquid;

[0044] (4) In the sol solution, add 1 part of magnesium sulfate and...

Embodiment 2

[0051] The difference between this example and Example 1 is that different amounts of sodium hydroxide are added to control the pH value to 2-3, 3-4, 4-5, 5-6, and the remaining steps are unchanged, and parallel experiments are carried out. The influence of different pH values ​​on the curing time of chlorine dioxide gel was tested.

[0052] The influence of table 2 different pH values ​​on the solidification time of chlorine dioxide gel

[0053] pH value Chlorine dioxide gel curing time 2～3 about 5h 3～4 about 3h 4～5 6~10min 5～6 fast curing

[0054] As can be known from the experimental results in Table 2, different pH values ​​have a greater impact on the solidification time of the chlorine dioxide gel. When the pH value of the sol mixture ranges between 2 and 4, the chlorine dioxide gel solidification The curing time is about 3 to 5 hours, and the curing time is too long; when the pH value range of the sol mixture is between 4 and 5, ...

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Abstract

The invention discloses a chlorine dioxide disinfection gel and a preparation method thereof. The preparation method comprises the following steps: preparing a mixed solution consisting of 95-100 parts by mass of tetraethyl orthosilicate, 3-6 parts by mass of methyltriethoxysilane and 15-30 parts by mass of hydrochloric acid, and conducting hydrolyzing while stirring, wherein after hydrolysis a byproduct ethanol is generated, and a clarified solution is obtained; adding 5-10 parts of a chelating agent and 0.5-5 parts of a slow release agent into the clarified solution, and continuing to perform stirring for 30 minutes; at a temperature of 40-50 DEG C, partially pumping out the ethanol by adopting a reduced pressure distillation method to obtain a sol solution; adding 1-10 parts of a stabilizer and 1-10 parts of chlorite into the sol solution, and continuing to perform uniform stirring to obtain a sol mixed solution; and adding 2.5-20 parts of an activator and 0.5-4 parts of an alkalinereagent into the sol mixed solution, and conducting stirring until the sol is solidified to obtain the chlorine dioxide disinfection gel. The preparation method of the chlorine dioxide disinfection gel is simple in overall process, easy to operate and low in investment cost, and the prepared chlorine dioxide disinfection gel has the advantages of being long in action period, high in stability, controllable in release rate and the like.

Description

technical field [0001] The invention belongs to the field of air purifiers, and in particular relates to a chlorine dioxide disinfection gel and a preparation method thereof. Background technique [0002] Chlorine dioxide is an internationally recognized high-efficiency bactericidal disinfectant. Chlorine dioxide has a strong ability to absorb and penetrate microbial cell walls. It can effectively oxidize enzymes containing sulfhydryl groups in cells to kill bacteria, and can also quickly inhibit microorganisms. Protein synthesis to destroy microorganisms. Chlorine dioxide can kill all microorganisms, including bacterial propagules, bacterial spores, fungi, mycobacteria and viruses, etc., and these bacteria will not develop resistance. Chlorine dioxide is more effective in inactivating viruses than ozone and chlorine, and low doses of chlorine dioxide also have a strong anthelmintic effect. Compared with other chlorine-based disinfectants that use chlorine gas or chlorine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/18A01N59/00A01P1/00A01P3/00B01D53/72B01D53/76A61L9/01A61L9/012A61L101/06
CPCA01N25/04A01N25/18A01N59/00A61L9/01A61L9/012A61L2209/21B01D53/72B01D53/76B01D2251/108
Inventor 危岩于伟娜苏明皇杨储琳
Owner 厦门庚能新材料技术有限公司
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