CN113785836A - Chitosan bactericide and preparation method thereof - Google Patents
Chitosan bactericide and preparation method thereof Download PDFInfo
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- CN113785836A CN113785836A CN202110985432.2A CN202110985432A CN113785836A CN 113785836 A CN113785836 A CN 113785836A CN 202110985432 A CN202110985432 A CN 202110985432A CN 113785836 A CN113785836 A CN 113785836A
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- chitosan
- bactericide
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- 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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a chitosan bactericide and a preparation method thereof. The invention can not only carry out comprehensive sterilization and algae removal and inhibit the growth of microorganisms, but also play roles of stripping, deodorization and slow release, has extremely low toxicity, is easy to dissolve in water, is not influenced by water hardness, can be widely applied to water treatment of various industries, can effectively control the reproduction of bacteria and algae and the growth of slime in water, has good slime stripping effect and certain dispersion and permeation effects, and simultaneously has certain deoiling, deodorization and corrosion-retarding effects. The bactericide has no accumulated toxicity, is easy to dissolve in water, is not influenced by water hardness, is widely applied to circulating cooling water systems in the industries of petroleum, chemical engineering, electric power, textile and the like to control the breeding of bacteria and algae in the circulating cooling water systems, has special effect on killing sulfate reducing bacteria, and is added with quaternary ammonium salt and an auxiliary agent of a stripping agent, so that the bactericide has stripping effect, low toxicity, safety, small side effect, low irritation and wide application range.
Description
Technical Field
The invention relates to the technical field of bactericides, in particular to a chitosan bactericide and a preparation method thereof.
Background
Chitosan (chitosan) chitin N-deacetylated product, chitin, chitosan, cellulose have close chemical structure, cellulose is hydroxyl at C2 position, chitin, chitosan are replaced by an acetamido and amino at C2 position respectively, chitin and chitosan have biodegradability, cell affinity and biological effect etc. many unique properties, especially chitosan containing free amino, are the only basic polysaccharide in natural polysaccharide. The amino group in the chitosan molecular structure has stronger reactivity than the acetamido group in the chitin molecule, so that the polysaccharide has excellent biological function and can carry out chemical modification reaction. Therefore, chitosan is considered to be a functional biomaterial with greater potential for use than cellulose. The chitosan is a product of natural polysaccharide chitin with partial acetyl removed, has multiple physiological functions of biodegradability, biocompatibility, nontoxicity, bacteriostasis, cancer resistance, lipid reduction, immunity enhancement and the like, and is widely applied to the fields of food additives, textiles, agriculture, environmental protection, beauty and health care, cosmetics, antibacterial agents, medical fibers, medical dressings, artificial tissue materials, drug slow release materials, gene transduction carriers, biomedical fields, medical absorbable materials, tissue engineering carrier materials, medical treatment, drug development and the like and other daily chemical industries. Large amounts of chitin are present in the carapace of marine arthropods such as shrimps and crabs, the carapace of insects, the cell membrane of fungi and algae, the shell and skeleton of mollusks, and the cell wall of higher plants. Chitin is widely distributed in the natural world, the reserve is only behind cellulose, the chitin is the second largest natural polymer, the amount of chitin biosynthesis is about 100 hundred million tons every year, the chitin is a recyclable and renewable resource, the chitin is inexhaustible, the natural polymers are mainly distributed in coastal areas, countries such as India, Poland, Japan, America, Norway and Australia, and chitosan is commercially produced.
The invention provides the chitosan bactericide which can sterilize water treatment by combining the characteristics of chitosan with the bactericide, not only can comprehensively sterilize and remove algae and inhibit the growth of microorganisms, but also can play the roles of stripping, deodorization and slow release, has extremely low toxicity, is easy to dissolve in water, is not influenced by water hardness, and can be widely applied to water treatment in various industries.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses a chitosan bactericide, which adopts the technical scheme that the chitosan bactericide comprises the following components:
as a preferred embodiment of the present invention, the adjuvant comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
In a preferred embodiment of the present invention, the ratio of the hypochlorous acid, the quaternary ammonium salt, and the stripping agent is: 1:1-5:20-45.
As a preferred embodiment of the present invention, the stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
The invention discloses a preparation method of a chitosan bactericide, which comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
In a preferred embodiment of the present invention, the first mixed solution is reacted at 30 ℃ to 60 ℃.
As a preferable scheme of the invention, the reaction temperature of mixing the chitosan and the polyethylene glycol glycidyl ether is 70-80 ℃.
As a preferable scheme of the invention, the reaction time of the chitosan and the polyethylene glycol glycidyl ether is 8-12 h.
The invention has the beneficial effects that: the invention can not only carry out comprehensive sterilization and algae removal and inhibit the growth of microorganisms, but also play roles of stripping, deodorization and slow release, has extremely low toxicity, is easy to dissolve in water, is not influenced by water hardness, can be widely applied to water treatment of various industries, can effectively control the reproduction of bacteria and algae and the growth of slime in water, has good slime stripping effect and certain dispersion and permeation effects, and simultaneously has certain deoiling, deodorization and corrosion-retarding effects. The bactericide has no accumulated toxicity, is easy to dissolve in water, is not influenced by water hardness, is widely applied to circulating cooling water systems in the industries of petroleum, chemical engineering, electric power, textile and the like to control the breeding of bacteria and algae in the circulating cooling water systems, has special effect on killing sulfate reducing bacteria, and is added with quaternary ammonium salt and an auxiliary agent of a stripping agent, so that the bactericide has stripping effect, low toxicity, safety, small side effect, low irritation and wide application range.
Detailed Description
In the description of the present invention, it is to be understood that the orientations indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are merely for convenience in describing and simplifying the invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the invention, and further that the terms "first", "second", and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance or the number of technical features indicated, and thus the features defined as "first", "second", and the like can either explicitly or implicitly include one or more such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.
Example 1
The invention relates to a specific embodiment of a chitosan bactericide and a preparation method thereof, wherein the chitosan bactericide comprises the following components:
the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
The proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:1:20.
The stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
A preparation method of chitosan bactericide comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
The first mixed solution is reacted at 30 ℃.
The reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether was 70 ℃.
The reaction time of the chitosan and the polyethylene glycol glycidyl ether is 8 h.
Example 2
The invention relates to a specific embodiment of a chitosan bactericide and a preparation method thereof, wherein the chitosan bactericide comprises the following components:
the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
The proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:2:25.
The stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
A preparation method of chitosan bactericide comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
The first mixed solution is reacted at 35 ℃.
The reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether is 72 ℃.
The reaction time of the chitosan and the polyethylene glycol glycidyl ether is 8.5 h.
Example 3
The invention relates to a specific embodiment of a chitosan bactericide and a preparation method thereof, wherein the chitosan bactericide comprises the following components:
the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
The proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:3:30.
The stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
A preparation method of chitosan bactericide comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
The first mixed solution is reacted at 40 ℃.
The reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether was 74 ℃.
The reaction time of the chitosan and the polyethylene glycol glycidyl ether is 9 h.
Example 4
The invention relates to a specific embodiment of a chitosan bactericide and a preparation method thereof, wherein the chitosan bactericide comprises the following components:
the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
The proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:4:40.
The stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
A preparation method of chitosan bactericide comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
The first mixed solution is reacted at 50 ℃.
The reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether was 78 ℃.
The reaction time of the chitosan and the polyethylene glycol glycidyl ether is 10 hours.
Example 5
The invention relates to a specific embodiment of a chitosan bactericide and a preparation method thereof, wherein the chitosan bactericide comprises the following components:
the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
The proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:5:45.
The stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
A preparation method of chitosan bactericide comprises the following steps:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
The first mixed solution is reacted at 60 ℃.
The reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether is 80 ℃.
The reaction time of the chitosan and the polyethylene glycol glycidyl ether is 12 hours.
Ingredients not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The chitosan bactericide is characterized by comprising the following components:
2. a chitosan antiseptic as claimed in claim 1, wherein: the auxiliary agent comprises: hypochlorous acid, quaternary ammonium salt and a stripping agent.
3. A chitosan antiseptic as claimed in claim 2, wherein: the proportion of the hypochlorous acid, the quaternary ammonium salt and the stripping agent is as follows: 1:1-5:20-45.
4. A chitosan antiseptic as claimed in claim 3, wherein: the stripping agent comprises dodecyl dimethyl benzyl ammonium chloride.
5. A method for preparing a chitosan antiseptic as claimed in claim 4, comprising the steps of:
the method comprises the following steps: mixing concentrated hydrochloric acid in a chlorine gas generator to react, adding potassium hydroxide to mix, and then adding ferric nitrate to obtain a first mixed solution;
step two: mixing and stirring chitosan and polyethylene glycol glycidyl ether, adding an auxiliary agent, and uniformly stirring to obtain a second mixed solution;
step three: and mixing the first mixed solution and the second mixed solution at room temperature, stirring, standing and filtering to obtain the composite material.
6. The method for preparing a chitosan bactericide as claimed in claim 5, wherein: the first mixed solution reacts at 30-60 ℃.
7. The method for preparing a chitosan bactericide as claimed in claim 5, wherein: the reaction temperature for mixing the chitosan and the polyethylene glycol glycidyl ether is 70-80 ℃.
8. The method for preparing a chitosan antiseptic as claimed in claim 5, wherein: the reaction time of the chitosan and the polyethylene glycol glycidyl ether is 8-12 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985432.2A CN113785836A (en) | 2021-08-26 | 2021-08-26 | Chitosan bactericide and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110985432.2A CN113785836A (en) | 2021-08-26 | 2021-08-26 | Chitosan bactericide and preparation method thereof |
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| CN113785836A true CN113785836A (en) | 2021-12-14 |
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| CN202110985432.2A Pending CN113785836A (en) | 2021-08-26 | 2021-08-26 | Chitosan bactericide and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117240A (en) * | 2007-07-07 | 2008-02-06 | 黄山学院 | Preparation method of solid potassium ferrate |
| CN103524444A (en) * | 2013-09-27 | 2014-01-22 | 北京理工大学 | Synthetic method of 5, 5'-bistetrazole-1, 1'-dioxo hydroxyl ammonium salt (TKX-50) |
| CN104829748A (en) * | 2014-02-07 | 2015-08-12 | 山东省泰和水处理有限公司 | Water-soluble chitosan quaternary ammonium salt bactericide and preparation method thereof |
| CN108996475A (en) * | 2018-09-07 | 2018-12-14 | 山东博苑医药化学有限公司 | A method of preparing high-pure potash iodate |
-
2021
- 2021-08-26 CN CN202110985432.2A patent/CN113785836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117240A (en) * | 2007-07-07 | 2008-02-06 | 黄山学院 | Preparation method of solid potassium ferrate |
| CN103524444A (en) * | 2013-09-27 | 2014-01-22 | 北京理工大学 | Synthetic method of 5, 5'-bistetrazole-1, 1'-dioxo hydroxyl ammonium salt (TKX-50) |
| CN104829748A (en) * | 2014-02-07 | 2015-08-12 | 山东省泰和水处理有限公司 | Water-soluble chitosan quaternary ammonium salt bactericide and preparation method thereof |
| CN108996475A (en) * | 2018-09-07 | 2018-12-14 | 山东博苑医药化学有限公司 | A method of preparing high-pure potash iodate |
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