CN111567558A - Preparation method of nano silver ion disinfectant - Google Patents
Preparation method of nano silver ion disinfectant Download PDFInfo
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- CN111567558A CN111567558A CN202010284912.1A CN202010284912A CN111567558A CN 111567558 A CN111567558 A CN 111567558A CN 202010284912 A CN202010284912 A CN 202010284912A CN 111567558 A CN111567558 A CN 111567558A
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- nano silver
- silver ion
- film
- disinfectant
- film forming
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 title claims abstract 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 229920001661 Chitosan Polymers 0.000 claims abstract description 13
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 3
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical group [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000001804 emulsifying effect Effects 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 6
- 239000012279 sodium borohydride Substances 0.000 claims description 6
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- YCCILVSKPBXVIP-UHFFFAOYSA-N 2-(4-hydroxyphenyl)ethanol Chemical compound OCCC1=CC=C(O)C=C1 YCCILVSKPBXVIP-UHFFFAOYSA-N 0.000 claims description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical class NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical group OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 2
- DBLDQZASZZMNSL-QMMMGPOBSA-N L-tyrosinol Natural products OC[C@@H](N)CC1=CC=C(O)C=C1 DBLDQZASZZMNSL-QMMMGPOBSA-N 0.000 claims description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 2
- 235000018102 proteins Nutrition 0.000 claims description 2
- 102000004169 proteins and genes Human genes 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 235000004330 tyrosol Nutrition 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 12
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 239000003899 bactericide agent Substances 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 23
- 230000001954 sterilising effect Effects 0.000 description 8
- 238000011049 filling Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- -1 nano silver ions Chemical class 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000014599 transmission of virus Effects 0.000 description 1
- 239000002435 venom Substances 0.000 description 1
- 210000001048 venom Anatomy 0.000 description 1
- 231100000611 venom Toxicity 0.000 description 1
Classifications
-
- 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
- A01N59/16—Heavy metals; Compounds 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
-
- 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
- A01N25/02—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 containing liquids as carriers, diluents or solvents
-
- 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
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- 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
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of disinfection products, and particularly relates to a preparation method of a nano silver ion disinfectant, wherein the disinfectant is prepared from the following raw materials: film forming base material, alcohol and nano silver ion solution; wherein: the film forming base material is prepared from chitosan, a film forming agent and a solvent; the nano silver ion solution is prepared by silver salt catalytic reaction. The bactericidal capacity is strong, the bactericidal rate can reach 99.9%, the effect is durable, the bactericidal rate can still reach 99.5% after 7 days, and the bactericide is non-toxic and harmless.
Description
Technical Field
The invention belongs to the field of disinfection products, and particularly relates to a preparation method of a nano silver ion disinfectant.
Background
In three links of infectious disease prevention, controlling the infectious source and cutting off the transmission path are main means for blocking the diffusion and transmission of the infectious source. For the average community population, the risk comes more from indirect contact such as frequently touched door handles, faucets, computer keyboards, mice, cell phones, light switches, floors and toilets, and the like. The development of products that block the transmission of viruses and bacteria would be of great importance in the prevention of infectious diseases.
At present, the conventional disinfectant in the market is alcohol and 84 disinfectant, but the two types of disinfectant have quick volatility and weak continuous disinfection capacity.
Disclosure of Invention
The invention aims to provide a preparation method of a nano silver ion disinfectant, and the disinfectant produced by the method has strong sterilization capability and lasting effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
the preparation method of the nano silver ion disinfectant disclosed by the invention comprises the following steps of:
film forming base material, alcohol and nano silver ion solution;
wherein:
the film forming base material is prepared from chitosan, a film forming agent and a solvent;
the nano silver ion solution is prepared by silver salt catalytic reaction.
Preferably, the film-forming substrate is prepared by the steps of:
mixing and emulsifying chitosan, a film-forming agent and water to form gel, and preparing a film-forming base material;
the film forming agent is water-soluble resin or protein film forming agent.
Preferably, the weight ratio of the chitosan to the film forming agent is as follows: the ratio of chitosan to film forming agent is 1: 1.
Preferably, the film forming agent is one or more of WI-3 tyrosol, CAAS modified casein, waterborne polyurethane and waterborne polylactic acid.
Preferably, the preparation steps of the nano silver ion solution are as follows:
mixing silver salt, deionized water, ethanol and ethyl orthosilicate, adding ammonia water to adjust the pH to 10, adding the mixture, stirring the mixture for reaction, and filtering the mixture to obtain a product I;
and dispersing the product I in water, adding a reducing agent, and reacting for 5min to obtain a nano silver ion solution.
Preferably, the silver salt is silver nitrate, and the reducing agent is hydrazine hydrate, sodium citrate or sodium borohydride.
Preferably, the weight ratio of the silver nitrate to the ethanol to the ethyl orthosilicate to the reducing agent is as follows: silver nitrate, ethanol, ethyl orthosilicate and a reducing agent are 5: 10: 5: 2.
Preferably, the mixing emulsification adopts a high-speed shearing emulsifier, and the emulsification temperature is 50 ℃.
Compared with the prior art, the invention has the following beneficial effects:
(1) the main long-acting sterilization components are nano silver and nano silver ions, and in the preparation process of the nano silver ions, insufficient reducing agent is added, so that the silver ions cannot be completely reduced to form nano silver particles, meanwhile, the addition amount of ammonia water is large, and the sterilization rate can still reach 99.5% after 7 days, and the nano silver particles are non-toxic and harmless.
(2) The sterilization film can be wrapped on the surface of an object to isolate the direct contact between a human body and the object and protect the surface of the object; when the user carries bacteria, virus and other harmful microbes to the gel coating, the nanometer material with high sterilizing effect can kill the microbes quickly to ensure the quick sterilization of the gel coating and to cut off the propagation effectively
Detailed Description
The present invention is described in detail with reference to the following examples, but the scope of the present invention is not limited thereto.
Example 1
a) Preparation of film-forming substrates
Adding 30 parts of deionized water, 1 part of chitosan and 1 part of water-soluble polylactic acid into a high-speed shearing emulsifying machine, emulsifying at the emulsifying temperature of 50 ℃ to form gel, and obtaining a film-forming base material;
b) preparation of nano silver ion solution
Adding 1 part of silver nitrate, 20 parts of deionized water, 30 parts of ethanol and 2 parts of ethyl orthosilicate into a reaction kettle, mixing and stirring, adding ammonia water to adjust the pH value to 10, stirring and reacting for 8 hours, and filtering to obtain a product I;
and dispersing the product I in water, adding 0.4 part of sodium borohydride, and reacting for 5min to obtain a nano silver ion solution.
c) Finished product
Mixing the film-forming base material obtained in the step a) with the nano silver ion solution obtained in the step b) and 20 parts of ethanol, filtering and filling to obtain a finished product.
Example 2
a) Preparation of film-forming substrates
Adding 30 parts of deionized water, 1 part of chitosan and 1 part of WI-3 tyrosol-bob mixture into a high-speed shearing emulsifying machine, emulsifying at the emulsifying temperature of 50 ℃ to form gel, and obtaining a film-forming base material;
b) preparation of nano silver ion solution
Adding 1 part of silver nitrate, 20 parts of deionized water, 30 parts of ethanol and 2 parts of ethyl orthosilicate into a reaction kettle, mixing and stirring, adding ammonia water to adjust the pH value to 10, stirring and reacting for 8 hours, and filtering to obtain a product I;
and dispersing the product I in water, adding 0.4 part of sodium borohydride, and reacting for 5min to obtain a nano silver ion solution.
c) Finished product
Mixing the film-forming base material obtained in the step a) with the nano silver ion solution obtained in the step b) and 20 parts of ethanol, filtering and filling to obtain a finished product.
Example 3
a) Preparation of film-forming substrates
Adding 30 parts of deionized water, 1 part of chitosan and 1 part of CAAS modified casein into a high-speed shearing emulsifying machine, emulsifying at the emulsifying temperature of 50 ℃ to form gel, and obtaining a film-forming base material;
b) preparation of nano silver ion solution
Adding 1 part of silver nitrate, 20 parts of deionized water, 30 parts of ethanol and 2 parts of ethyl orthosilicate into a reaction kettle, mixing and stirring, adding ammonia water to adjust the pH value to 10, stirring and reacting for 8 hours, and filtering to obtain a product I;
and dispersing the product I in water, adding 0.4 part of sodium borohydride, and reacting for 5min to obtain a nano silver ion solution.
c) Finished product
Mixing the film-forming base material obtained in the step a) with the nano silver ion solution obtained in the step b) and 20 parts of ethanol, filtering and filling to obtain a finished product.
Example 4
a) Preparation of film-forming substrates
Adding 30 parts of deionized water, 1 part of chitosan and 1 part of waterborne polyurethane into a high-speed shearing emulsifying machine, emulsifying at the emulsifying temperature of 50 ℃ to form gel, and obtaining a film-forming base material;
b) preparation of nano silver ion solution
Adding 1 part of silver nitrate, 20 parts of deionized water, 30 parts of ethanol and 2 parts of ethyl orthosilicate into a reaction kettle, mixing and stirring, adding ammonia water to adjust the pH value to 10, stirring and reacting for 8 hours, and filtering to obtain a product I;
and dispersing the product I in water, adding 0.4 part of sodium borohydride, and reacting for 5min to obtain a nano silver ion solution.
c) Finished product
Mixing the film-forming base material obtained in the step a) with the nano silver ion solution obtained in the step b) and 20 parts of ethanol, filtering and filling to obtain a finished product.
TABLE 1
| Film formation time | Area of coating film | Degree of smoothness | Hardness of | |
| Example 1 | 1min | 99％ | ++ | +++ |
| Example 2 | 1min | 99％ | ++ | +++ |
| Example 3 | 1min | 99％ | ++ | +++ |
| Example 4 | 1min | 99％ | ++ | +++ |
Film forming time:
examples 1-4 after the venom was sprayed on the surface of the object to be sterilized, it was substantially dried in 1min under natural conditions, and the surface showed an incompletely covered film.
Test method of "film-covered area" in table 1:
the disinfectant liquids prepared in examples 1 to 4 were respectively poured into a spraying device, the surfaces of the disinfection subjects were sprayed, 10min later, the surfaces of the disinfection subjects were photographed with a microscope, and the areas of the films were measured.
The "smoothness" index in Table 1 is explained as follows:
-: the surface is rough;
+: is opaque; the surface is smoother;
++: the surface is relatively transparent and smooth;
the "smoothness" index in table 1 was tested:
the disinfecting solutions prepared in examples 1 to 4 were respectively filled in a spraying device, the surfaces of the disinfected objects were sprayed, and after 10min, the smoothness of the surfaces of the disinfected objects was checked with the naked eye, and the results are shown in table 1: the spray objects of examples 1-4 had transparent and smooth surfaces.
The "hardness" index in Table 1 is explained as follows:
+: adhesion is formed, but the adhesion is low, and after the finger is wiped, the finger has residue, so the hardness is poor;
++: the adhesive force is general, after the finger is wiped, no residue is left on the finger, the finger is easy to scrape by using a nail, and the hardness is general;
+++: the adhesive force is good, and the hardness is higher when the nail is difficult to scrape.
Test methods for the "hardness" index in table 1:
the disinfecting solutions prepared in examples 1 to 4 were respectively filled in a spraying device, sprayed on the surfaces of the disinfected objects, and after 10min, the hardness of the film was judged by finger wiping and nail scraping, as shown in table 1: the disinfecting films formed in examples 1 to 4 had good adhesion and hardness, which was hard to be removed with nails.
The disinfection effect results were as follows:
detection standard: WS/T650-2019
Results of bactericidal rate are shown in table 2:
as shown in the table 2, on the 1 st day of spraying the disinfectant, the sterilization rate of the common pathogenic bacteria such as staphylococcus aureus and escherichia coli in the examples 1-4 is 99.9%; the sterilizing effect of 99.5 percent can be still maintained on the 7 th day.
TABLE 2
| Number of days | Example 1 | Example 2 | Example 3 | Example 4 |
| 1 | 99.9％ | 99.9％ | 99.9％ | 99.9％ |
| 2 | 99.9％ | 99.9％ | 99.9％ | 99.9％ |
| 3 | 99.8％ | 99.8％ | 99.8％ | 99.8％ |
| 4 | 99.8％ | 99.8％ | 99.8％ | 99.8％ |
| 5 | 99.7％ | 99.7％ | 99.7％ | 99.7％ |
| 6 | 99.6％ | 99.6％ | 99.6％ | 99.6％ |
| 7 | 99.5％ | 99.5％ | 99.5％ | 99.5％ |
Claims (8)
1. The preparation method of the nano silver ion disinfectant is characterized in that the nano silver ion disinfectant is prepared from the following raw materials:
film forming base material, alcohol and nano silver ion solution;
wherein:
the film forming base material is prepared from chitosan, a film forming agent and a solvent;
the nano silver ion solution is prepared by silver salt catalytic reaction.
2. The method for preparing nano silver ion disinfectant as claimed in claim 1, wherein the step of preparing the film-forming substrate is:
mixing and emulsifying chitosan, a film-forming agent and water to form gel, and preparing a film-forming base material;
the film forming agent is water-soluble resin or protein film forming agent.
3. The method for preparing nano silver ion disinfectant as claimed in claim 1, wherein the weight ratio of chitosan to film-forming agent is: the ratio of chitosan to film forming agent is 1: 1.
4. The method for preparing nano silver ion disinfectant as claimed in claim 1, wherein the film forming agent is one or more of WI-3 tyrosol, CAAS modified casein, aqueous polyurethane and aqueous polylactic acid.
5. The method for preparing nano silver ion disinfectant as claimed in claim 1, wherein the nano silver ion solution is prepared by the following steps:
mixing silver salt, deionized water, ethanol and ethyl orthosilicate, adding ammonia water to adjust the pH to 10, adding the mixture, stirring the mixture for reaction, and filtering the mixture to obtain a product I;
and dispersing the product I in water, adding a reducing agent, and reacting for 5min to obtain a nano silver ion solution.
6. The method for preparing the nano silver ion disinfectant as claimed in claim 4, wherein the silver salt is silver nitrate and the reducing agent is hydrazine hydrate, sodium citrate or sodium borohydride.
7. The method for preparing the nano silver ion disinfectant as claimed in claim 5, wherein the weight ratio of the silver nitrate, the ethanol, the ethyl orthosilicate and the reducing agent is as follows: silver nitrate, ethanol, ethyl orthosilicate and a reducing agent are 5: 10: 5: 2.
8. The method for preparing nano silver ion disinfectant as claimed in claim 2, wherein the mixing and emulsifying are carried out by a high speed shearing emulsifying apparatus, and the emulsifying temperature is 50 ℃.
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| CN202010284912.1A CN111567558A (en) | 2020-04-13 | 2020-04-13 | Preparation method of nano silver ion disinfectant |
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|---|---|---|---|
| CN202010284912.1A CN111567558A (en) | 2020-04-13 | 2020-04-13 | Preparation method of nano silver ion disinfectant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219842A (en) * | 2020-07-24 | 2021-01-15 | 华南农业大学 | A kind of water-based polyurethane drug-loaded sustained-release spray with opposite charge and preparation method and application thereof |
| WO2022146244A1 (en) * | 2020-12-29 | 2022-07-07 | Nanoksia Bi̇yoteknoloji̇ Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | A biodegradable nano - encapsulated disinfectant composition |
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2020
- 2020-04-13 CN CN202010284912.1A patent/CN111567558A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219842A (en) * | 2020-07-24 | 2021-01-15 | 华南农业大学 | A kind of water-based polyurethane drug-loaded sustained-release spray with opposite charge and preparation method and application thereof |
| CN112219842B (en) * | 2020-07-24 | 2021-07-20 | 华南农业大学 | A kind of water-based polyurethane drug-loaded sustained-release spray with opposite charge and preparation method and application thereof |
| WO2022146244A1 (en) * | 2020-12-29 | 2022-07-07 | Nanoksia Bi̇yoteknoloji̇ Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | A biodegradable nano - encapsulated disinfectant composition |
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Application publication date: 20200825 |