Slow-release chlorine dioxide disinfectant and preparation method thereof

A chlorine dioxide and disinfectant technology, applied in the direction of disinfectants, chemical instruments and methods, botany equipment and methods, etc., can solve the problems of easy volatilization of solutions, difficult transportation and storage, unstable performance, etc., and achieve improved thermal stability Sexuality, controllable release speed, low efficiency and low cost

Inactive Publication Date: 2020-08-07
浙江施维康生物医学材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gaseous chlorine dioxide is active and unstable, and the solution is volatile, so it is generally inconvenient to make compressed gas or concentrated liquid, which greatly reduces the convenience of chlorine dioxide.
At the same time, chlorine dioxide is an explosive gas. When the content in the air is greater than 10%, it is easy to explode. Under the action of heat and light, chlorine dioxide is easy to decompose into hypochlorous acid, chlorine and oxygen, etc., and its performance is very unstable.
[0003] At present, chlorine dioxide disinfectants are often used and prepared immediately, which is inconvenient to use, and the performance of raw materials for preparing chlorine dioxide is unstable, difficult to transport and store, and the release rate of chlorine dioxide is uncontrollable, and the disinfection efficiency is low.
And although the current slow-release passivation stabilizer can reduce the initial release rate of the carbon dioxide rate to a certain extent, it cannot fundamentally solve its thermal stability, light stability, and transport impact stability, and it is difficult to have the dual functions of slow release and safety.

Method used

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  • Slow-release chlorine dioxide disinfectant and preparation method thereof
  • Slow-release chlorine dioxide disinfectant and preparation method thereof

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preparation example Construction

[0036] In one embodiment, the preparation method of the starch-grafted polyacrylamide comprises the steps of:

[0037] (1) Mix starch, acrylamide, N,N-methylenebisacrylamide and distilled water, and keep the speed of the internal mixer at 70-100r / min in the chamber of the internal mixer at 70-90°C to fully paste Starch and homogenize the mixed reactant for 5-10min;

[0038] (2) Lower the chamber temperature of the internal mixer to 25-35°C, add the newly prepared ammonium persulfate aqueous solution, and mix quickly at 80-120r / min for 1-3min to obtain the starch-grafted polypropylene amides;

[0039] In the step (1), the mass ratio of the starch, acrylamide, N,N-methylenebisacrylamide and distilled water is 2:1:0.02:4.5;

[0040] In the step (2), the concentration of the ammonium persulfate aqueous solution is 0.03g / mL, and the volume is 5mL.

[0041] In a preferred embodiment, the preparation method of the starch-grafted polyacrylamide comprises the steps of:

[0042] (1)...

Embodiment 1

[0122] Embodiment 1 provides a kind of slow-release chlorine dioxide disinfectant, and described disinfectant comprises slow-release agent and chlorine dioxide generator; The mass ratio of described slow-release agent and chlorine dioxide generator is 2:1; In parts by weight, the chlorine dioxide generator includes 10 parts of chlorite, 10 parts of activator, and 3 parts of filler;

[0123] The slow-release agent includes a polymer coating agent and an inorganic slow-release agent; the mass ratio of the polymer coating agent and the inorganic slow-release agent is 1:11;

[0124] The inner layer of the polymer coating agent is a water-retaining polymer material, and the outer layer is a water-insoluble or insoluble polymer material; the polymer coating agent is provided with an opening agent; the opening agent is hydroxyethyl fiber element; the mass ratio of the water-retaining polymer material, water-insoluble or insoluble polymer material, and hydroxyethyl cellulose is 3:1:0....

Embodiment 2

[0157] Embodiment 2 provides a kind of slow-release chlorine dioxide disinfectant, and described disinfectant comprises slow-release agent and chlorine dioxide generator; The mass ratio of described slow-release agent and chlorine dioxide generator is 3:1; In parts by weight, the chlorine dioxide generator includes 20 parts of chlorite, 15 parts of activator, and 6 parts of filler;

[0158] The slow-release agent includes a polymer coating agent and an inorganic slow-release agent; the mass ratio of the polymer coating agent and the inorganic slow-release agent is 1:11;

[0159] The inner layer of the polymer coating agent is a water-retaining polymer material, and the outer layer is a water-insoluble or insoluble polymer material; the polymer coating agent is provided with an opening agent; the opening agent is hydroxyethyl fiber element; the mass ratio of the water-retaining polymer material, water-insoluble or insoluble polymer material, and hydroxyethyl cellulose is 3.5:1:...

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Abstract

The invention belongs to the technical field of disinfectants, and particularly relates to a slow-release chlorine dioxide disinfectant and a preparation method thereof. The invention discloses a slow-release chlorine dioxide disinfectant. The disinfectant comprises a slow-release agent and a chlorine dioxide generator, wherein the chlorine dioxide generator comprises the following components in parts by weight: 10-20 parts of chlorite, 10-15 parts of an activating agent and 3-6 parts of a filling agent. According to the slow-release chlorine dioxide disinfectant prepared by the invention, theaction of the external environment on chlorine dioxide is isolated, the thermal stability, the light stability and the transportation impact stability of chlorine dioxide are improved, and the slow-release chlorine dioxide disinfectant has high safety, controllable release speed and double effects of slow release and safety explosion prevention; the initial chlorine dioxide content and the long-time chlorine dioxide content of the slow-release chlorine dioxide disinfectant prepared by the method are optimal for air purification effect, escherichia coli sterilization effect and formaldehyde removal effect, and the slow-release chlorine dioxide disinfectant is low in unit disinfection efficiency cost, convenient to use and wide in applicability.

Description

technical field [0001] The invention belongs to the technical field of disinfectants, and in particular relates to a slow-release chlorine dioxide disinfectant and a preparation method thereof. Background technique [0002] The oxidizing ability of chlorine dioxide is 2.6 times that of chlorine gas. It can rapidly oxidize and decompose amino acids in bacteria, viruses, proteins, and many reducing substances without causing carcinogenicity, teratogenicity, or mutagenesis. It is currently internationally recognized as safe , Spectrum bactericidal disinfectant. However, gaseous chlorine dioxide is active and unstable, and its solution is volatile, so it is generally inconvenient to make compressed gas or concentrated liquid, which greatly reduces the convenience of chlorine dioxide. At the same time, chlorine dioxide is an explosive gas. When the content in the air is greater than 10%, it is easy to explode. Under the action of heat and light, chlorine dioxide is easy to decom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/00A01N25/08A01N25/26A01N25/18A01P1/00B01D53/81B01D53/72
CPCA01N25/08A01N25/18A01N25/26A01N59/00B01D53/72B01D53/81
Inventor 严敬华
Owner 浙江施维康生物医学材料有限公司
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