CN114145297A - Unitary peracetic acid sterilizing powder and preparation method thereof - Google Patents

Unitary peracetic acid sterilizing powder and preparation method thereof Download PDF

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Publication number
CN114145297A
CN114145297A CN202111573302.4A CN202111573302A CN114145297A CN 114145297 A CN114145297 A CN 114145297A CN 202111573302 A CN202111573302 A CN 202111573302A CN 114145297 A CN114145297 A CN 114145297A
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unitary
peracetic acid
sterilizing powder
agent
mass
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周平
徐丹
刘思源
丛昊
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Zhuolu Xiuyuan Biotechnology Co ltd
Shanghai Langtong Environmental Technology Development Co ltd
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Zhuolu Xiuyuan Biotechnology Co ltd
Shanghai Langtong Environmental Technology Development Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
    • A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
    • A01N37/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/14—Boron; Compounds thereof

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
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  • Plant Pathology (AREA)
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  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
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Abstract

The invention provides a unitary peracetic acid sterilizing powder and a preparation method thereof, belonging to the technical field of disinfectants. According to the invention, a propellant and an activator are mixed in the same solid preparation, and the propellant and the activator are wrapped by glycol, so that the propellant and the activator do not react after being mixed to form monoperoxyacetic acid sterilization powder; in addition, the unitary peracetic acid sterilizing powder provided by the invention can generate a single-component peracetic acid sterilizing preparation when encountering water to react. The unitary peracetic acid sterilizing powder provided by the invention can be completely dissolved in water within 30 minutes, the mass percentage of generated peracetic acid reaches 8-10%, the stability can reach more than 12 months, and the unitary peracetic acid sterilizing powder has the characteristics of high efficiency and stability, and is convenient to store, transport and use.

Description

Unitary peracetic acid sterilizing powder and preparation method thereof
Technical Field
The invention relates to the technical field of disinfectants, in particular to unitary peracetic acid sterilizing powder and a preparation method thereof.
Background
The peroxyacetic acid disinfectant is a strong oxidant, can quickly kill viruses, bacteria, fungi and spores, can effectively disinfect the surface of an object and air, is widely applied to the fields of food processing plants, food freezing warehouses, meat processing plants, slaughterhouses, livestock and poultry houses, wards, the surfaces of general objects, tools, clothes, mushroom houses, shed frames and the like, and is a broad-spectrum, high-efficiency, safe and environment-friendly disinfectant. However, peroxyacetic acid is very active in chemical property, is unstable and easy to decompose, needs to be prepared at any time when being used, and prevents the use of the peroxyacetic acid after being overdue, so that the peroxyacetic acid preparations in the market at present exist in a liquid or binary solid preparation form. However, the binary solid preparation has the disadvantages of inconvenient carrying and use because the two propellants are separately packaged and mixed with water to react when in use.
Disclosure of Invention
The invention aims to provide unitary peracetic acid sterilizing powder and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides unitary peracetic acid sterilizing powder which comprises the following components in percentage by mass:
30-70% of a generating agent, 10-30% of an activating agent, 0.1-10% of a catalyst, 0.1-10% of a surfactant, 0.1-2% of a corrosion inhibitor, 2-13% of a drying agent and 0.5-5% of a pH regulator;
the generating agent is perborate or percarbonate, and the activating agent is acetylsalicylic acid, tetraacetyl glycoluril or TAED;
the surfaces of the generating agent and the activating agent are both coated with glycol diaphragms.
Preferably, the particle size of the generating agent is 20-200 meshes.
Preferably, the particle size of the activating agent is 30-200 meshes.
Preferably, the catalyst is citric acid, oxalic acid or tartaric acid.
Preferably, the surfactant is sodium dodecyl sulfate or sodium dodecyl benzene sulfonate.
Preferably, the corrosion inhibitor is sodium tripolyphosphate.
Preferably, the drying agent is magnesium sulfate, calcium chloride or magnesium chloride; the particle size of the drying agent is 30-90 meshes.
Preferably, the pH regulator is sodium dihydrogen phosphate or potassium dihydrogen phosphate, and the particle size of the pH regulator is 20-200 meshes.
Preferably, the mass of the ethylene glycol diaphragm coated on the surface of the generating agent is 1-7% of the mass of the generating agent, and the mass of the ethylene glycol diaphragm coated on the surface of the activating agent is 1-7% of the mass of the activating agent.
The invention provides a preparation method of unitary peracetic acid sterilizing powder, which comprises the following steps:
respectively spraying ethylene glycol aqueous solution on the surfaces of a propellant and an activator, and carrying out micro-wrapping to obtain the propellant wrapped with an ethylene glycol diaphragm and the activator wrapped with the ethylene glycol diaphragm;
premixing the ethylene glycol diaphragm-coated generating agent, the drying agent, the corrosion inhibitor and the pH regulator to obtain a premix;
and mixing the premix with an activating agent, a catalyst and a surfactant which are wrapped with a glycol diaphragm to obtain the unitary peracetic acid sterilizing powder.
The invention provides unitary peracetic acid sterilizing powder which comprises the following components in percentage by mass: 30-70% of a generating agent, 10-30% of an activating agent, 0.1-10% of a catalyst, 0.1-10% of a surfactant, 0.1-2% of a corrosion inhibitor, 2-13% of a drying agent and 0.5-5% of a pH regulator; the generating agent is perborate or percarbonate, and the activating agent is acetylsalicylic acid, tetraacetyl glycoluril or TAED; the surfaces of the generating agent and the activating agent are both coated with glycol diaphragms. According to the unitary solid preparation provided by the invention, the generating agent and the activating agent are mixed in the same solid preparation to form unitary sterilizing powder, and the generating agent and the activating agent are respectively wrapped by the glycol diaphragm, so that the generating agent and the activating agent do not react after being mixed, and the stability is high; when the disinfectant is used in water, the generating agent and the activating agent contact and react to generate the peroxyacetic acid disinfectant with single component, and the disinfection effect is exerted.
The unitary peracetic acid sterilizing powder provided by the invention can be completely dissolved in water within 30 minutes, the mass percentage of generated peracetic acid reaches 8-10%, the stability can reach more than 12 months, and the unitary peracetic acid sterilizing powder has the characteristics of high efficiency and stability, and is convenient to store, transport and use.
Detailed Description
The invention provides unitary peracetic acid sterilizing powder which comprises the following components in percentage by mass:
30-70% of a generating agent, 10-30% of an activating agent, 0.1-10% of a catalyst, 0.1-10% of a surfactant, 0.1-2% of a corrosion inhibitor, 2-13% of a drying agent and 0.5-5% of a pH regulator;
the generating agent is perborate or percarbonate, and the activating agent is acetylsalicylic acid, tetraacetyl glycoluril or TAED;
the surfaces of the generating agent and the activating agent are both coated with glycol diaphragms.
In the present invention, the components required are all commercially available products well known to those skilled in the art, unless otherwise specified.
The unitary peracetic acid sterilizing powder provided by the invention comprises 30-70% by mass of a generating agent, preferably 40-60% by mass of a generating agent, and more preferably 45-55% by mass of a generating agent. In the present invention, the generator is perborate or percarbonate; the perborate is preferably sodium perborate; the percarbonate is preferably sodium percarbonate.
In the present invention, the particle size of the generating agent is preferably 20 to 200 mesh, and more preferably 40 to 130 mesh. The invention can ensure the full reaction of the generating agent and the activating agent to generate the peroxyacetic acid by controlling the particle size of the generating agent and control the reaction speed.
In the invention, the surface of the generating agent is coated with a glycol diaphragm; the mass of the ethylene glycol diaphragm coated on the surface of the generating agent is preferably 1-7% of the mass of the generating agent, more preferably 2-6%, and even more preferably 3-5%.
The unitary peracetic acid sterilizing powder provided by the invention comprises 10-30% of an activating agent, preferably 15-25%, and more preferably 18-22% by mass. In the present invention, the activator is acetylsalicylic acid, tetraacetyl glycoluril or TAED; the particle size of the activating agent is preferably 30-200 meshes, and more preferably 50-120 meshes. The invention can ensure that the reaction of the generating agent and the activating agent to generate the peroxyacetic acid is more sufficient by controlling the grain diameter of the activating agent, and control the reaction speed.
In the invention, the surface of the activating agent is coated with a glycol diaphragm; the mass of the ethylene glycol film coated on the surface of the activating agent is preferably 1-7% of that of the activating agent, more preferably 2-6%, and even more preferably 3-5%.
According to the invention, the surfaces of the generating agent and the activating agent are respectively wrapped with the ethylene glycol film, so that the generating agent and the activating agent can be prevented from reacting when being mixed, and the stability of the unitary solid preparation can be ensured.
The present invention utilizes generators and activators as substrates for the production of peroxyacetic acid.
The unitary peracetic acid sterilizing powder provided by the invention comprises 0.1-10% of catalyst, preferably 0.5-8%, more preferably 2.0-6.0%, and further preferably 6.0-5.0% by mass. In the present invention, the catalyst is preferably citric acid, oxalic acid or tartaric acid. The invention uses a catalyst to promote a generating agent and an activating agent to generate peroxyacetic acid.
The unitary peracetic acid sterilizing powder provided by the invention comprises 0.1-10% by mass of a surfactant, preferably 0.5-8%, more preferably 2.0-6.0%, and further preferably 6.0-5.0%. In the present invention, the surfactant is preferably sodium lauryl sulfate or sodium dodecylbenzenesulfonate. The invention utilizes the surfactant to play a role of a cosolvent.
The unitary peracetic acid sterilizing powder provided by the invention comprises 0.1-2% of corrosion inhibitor, preferably 0.3-1.5%, more preferably 0.5-1.2%, and further preferably 0.8-1.0% by mass. In the present invention, the corrosion inhibitor is preferably sodium tripolyphosphate. The invention uses the corrosion inhibitor to complex the metal ions in the water to be disinfected, avoids the reaction of the metal ions such as calcium, magnesium and the like with the oxidizing sterilizing powder, and avoids the influence on the sterilizing effect of the sterilizing powder.
The unitary peracetic acid sterilizing powder provided by the invention comprises 2-13% by mass of a drying agent, preferably 3-10%, more preferably 4-7%, and further preferably 5-6%. In the present invention, the drying agent is preferably magnesium sulfate, calcium chloride or magnesium chloride; the particle size of the drying agent is preferably 30-90 meshes.
The unitary peracetic acid sterilizing powder provided by the invention comprises 0.5-5% of pH regulator, preferably 0.5-4.5%, more preferably 1.0-4.0%, and further preferably 2.0-3.0% by mass. In the invention, the pH regulator is preferably sodium dihydrogen phosphate or potassium dihydrogen phosphate, and the particle size of the pH regulator is preferably 20-200 meshes, and more preferably 50-150 meshes. The pH value of the unitary peracetic acid sterilizing powder is adjusted by using the pH adjusting agent.
In the invention, the pH value of the unitary peracetic acid sterilizing powder is preferably 7.5-10. The method controls the pH value of the unitary peracetic acid sterilizing powder to be alkaline, and avoids the adverse effect of acidic conditions on the stability of the unitary peracetic acid sterilizing powder.
The monobasic solid preparation provided by the invention mixes the generating agent and the activating agent into the same solid preparation, adopts the ethylene glycol diaphragm to ensure that the generating agent and the activating agent do not react after being mixed, and can generate a single-component peracetic acid disinfection preparation when encountering water to react during use.
The invention provides a preparation method of unitary peracetic acid sterilizing powder, which comprises the following steps:
respectively spraying ethylene glycol aqueous solution on the surfaces of a propellant and an activator, and carrying out micro-wrapping to obtain the propellant wrapped with an ethylene glycol diaphragm and the activator wrapped with the ethylene glycol diaphragm;
premixing the ethylene glycol diaphragm-coated generating agent, the drying agent, the corrosion inhibitor and the pH regulator to obtain a premix;
and mixing the premix with an activating agent, a catalyst and a surfactant which are wrapped with a glycol diaphragm to obtain the unitary peracetic acid sterilizing powder.
The invention sprays glycol aqueous solution on the surface of the generating agent and the surface of the activating agent respectively, and micro-coating is carried out to obtain the generating agent coated with the glycol diaphragm. In the invention, the mass concentration of the ethylene glycol aqueous solution is preferably 3-4%. The spraying process is not particularly limited in the present invention, and the ethylene glycol aqueous solution can be uniformly sprayed on the surface of the generating agent and the activator according to a process well known in the art. In the present invention, the degree of the spraying is preferably such that the mass of the formed ethylene glycol separator is preferably 1 to 7% of the mass of the propellant, and the mass of the formed ethylene glycol separator is preferably 1 to 7% of the mass of the activator.
After the propellant wrapped with the ethylene glycol diaphragm is obtained, the propellant wrapped with the ethylene glycol diaphragm, the drying agent, the corrosion inhibitor and the pH regulator are premixed to obtain the premix. In the invention, the premixing is preferably carried out in a mixer, the rotation speed of the premixing is preferably 15-40 r/min, and the time is preferably 15 min. The mixer is not particularly limited in the present invention, and any mixer known in the art may be used.
After the premix is obtained, the premix is remixed with the activator, the catalyst and the surfactant which are wrapped with the glycol diaphragm to obtain the unitary peracetic acid sterilizing powder. In the present invention, the remixing is preferably carried out in the above-mentioned mixer; the rotation speed of remixing is preferably 15-40 r/min, and the time is preferably 15 min.
In the present invention, the premixing and remixing are preferably carried out in an environment of 25. + -. 1 ℃ and a humidity of 30. + -. 5%.
The invention mixes the materials by premixing and remixing, mixes the generating agent and the activating agent step by step, can improve the uniformity and the stability of the solid preparation, and is convenient for the disintegration of the disinfectant preparation when dissolved in water.
When the unitary peracetic acid sterilizing powder prepared by the invention is used in water, the mass content of generated peracetic acid is 8-10%, namely the generated peracetic acid accounts for the mass content of the unitary peracetic acid sterilizing powder.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
According to the raw material ratios shown in table 1, examples 1 to 3 were provided:
the preparation method comprises the following steps:
respectively spraying ethylene glycol aqueous solution (the mass concentration is 3%) on the surfaces of a generating agent and an activator, and micro-wrapping to obtain the generating agent comprising an ethylene glycol diaphragm (the mass percentage of the ethylene glycol diaphragm is 4% of the mass of the generating agent) and the activator wrapped with the ethylene glycol diaphragm (the mass percentage of the ethylene glycol diaphragm is 4% of the mass of the activator);
adding a propellant containing a glycol diaphragm, a drying agent, a corrosion inhibitor and a pH regulator into a mixer to premix for 15min at the rotating speed of 40r/min under the environment of 25 +/-1 ℃ and the humidity of 30 +/-5% to obtain a premix;
and adding an activating agent, a catalyst and a surfactant which are wrapped by a glycol diaphragm into the premix, and mixing for 15min at the rotating speed of 40r/min to obtain the unitary peracetic acid sterilizing powder.
TABLE 1 raw material ratios of examples 1 to 3
Figure BDA0003424506600000061
Performance testing
The unitary peracetic acid sterilizing powder of examples 1 to 3 was subjected to a performance test, wherein the stability was tested according to the disinfection technical specification, 2002 edition 2.2.3.2.1 (accelerated test method), the neutralizing agent was selected for a sterilization test according to the neutralization agent suspension quantitative test, 2002 edition 2.2.1.4 to 2.2.1.5.5, the sterilization effect was tested according to the bacterial suspension quantitative sterilization test, 2002 edition 2.1.1.7.4, the peracetic acid content and the pH value were measured according to a conventional method, and the obtained results are shown in table 2.
TABLE 2 Performance data for peracetic acid disinfectant of examples 1-3
Figure BDA0003424506600000071
As can be seen from Table 2, the monoacetic peroxyacetic acid sterilizing powder provided by the invention has high stability and excellent sterilizing performance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The unitary peracetic acid sterilizing powder is characterized by comprising the following components in percentage by mass:
30-70% of a generating agent, 10-30% of an activating agent, 0.1-10% of a catalyst, 0.1-10% of a surfactant, 0.1-2% of a corrosion inhibitor, 2-13% of a drying agent and 0.5-5% of a pH regulator;
the generating agent is perborate or percarbonate, and the activating agent is acetylsalicylic acid, tetraacetyl glycoluril or TAED;
the surfaces of the generating agent and the activating agent are both coated with glycol diaphragms.
2. The monoacetic peroxyacetic acid sterilizing powder as claimed in claim 1, wherein the particle size of the generating agent is 20-200 mesh.
3. The monoacetic peroxyacetic acid sterilizing powder according to claim 1, wherein the particle size of the activator is 30 to 200 mesh.
4. A monoacetic peroxyacetic acid sterilising powder according to claim 1, wherein the catalyst is citric acid, oxalic acid or tartaric acid.
5. A monoacetic peroxyacetic acid sterilising powder according to claim 1, wherein the surfactant is sodium dodecyl sulphate or sodium dodecyl benzene sulphonate.
6. A unitary peracetic acid sterilizing powder as claimed in claim 1, wherein the corrosion inhibitor is sodium tripolyphosphate.
7. The unitary peracetic acid sterilizing powder of claim 1, wherein the desiccant is magnesium sulfate, calcium chloride or magnesium chloride; the particle size of the drying agent is 30-90 meshes.
8. The monoacetic peroxyacetic acid sterilizing powder as claimed in claim 1, wherein the pH regulator is sodium dihydrogen phosphate or potassium dihydrogen phosphate, and the particle size of the pH regulator is 20-200 mesh.
9. The unitary peracetic acid sterilizing powder of claim 1, wherein the mass of the glycol membrane coated on the surface of the propellant is 1-7% of the mass of the propellant, and the mass of the glycol membrane coated on the surface of the activator is 1-7% of the mass of the activator.
10. A method of producing a unitary peracetic acid sterilizing powder according to any one of claims 1 to 9, comprising the steps of:
respectively spraying ethylene glycol aqueous solution on the surfaces of a propellant and an activator, and carrying out micro-wrapping to obtain the propellant wrapped with an ethylene glycol diaphragm and the activator wrapped with the ethylene glycol diaphragm;
premixing the ethylene glycol diaphragm-coated generating agent, the drying agent, the corrosion inhibitor and the pH regulator to obtain a premix;
and mixing the premix with an activating agent, a catalyst and a surfactant which are wrapped with a glycol diaphragm to obtain the unitary peracetic acid sterilizing powder.
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Citations (7)

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CN1128257A (en) * 1994-07-22 1996-08-07 段庆楠 Solid chemicals for preparing peroxyacetic acid and its preparation method
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