CN110184137B - Silver ion antibacterial microemulsion, preparation method thereof and application thereof in laundry detergent - Google Patents
Silver ion antibacterial microemulsion, preparation method thereof and application thereof in laundry detergent Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3776—Heterocyclic compounds, e.g. lactam
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
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Abstract
The invention discloses a silver ion antibacterial microemulsion which is prepared by reacting the following raw materials in parts by weight: 0.1-0.2 part of silver nitrate, 1.0-2.0 parts of ammonia water, 0.2-2.0 parts of ethanolamine, 2.0 parts of tween 800.2, 1.5-3.0 parts of dodecylbenzene sulfonic acid, 0.1-0.5 part of polyvinylpyrrolidone, 0.2-2.0 parts of acrylic resin, 2.0-10 parts of ethanol and 70-90 parts of deionized water. The silver-ammonia complex solution is primarily formed by silver nitrate solution, ammonia water and ethanolamine, and the adaptability of the silver-ammonia solution in the laundry detergent containing sodium chloride is improved by polyvinylpyrrolidone and acrylic resin. The silver ion antibacterial microemulsion provided by the invention controls the adding amount of each raw material in an optimal range so as to enable the silver ion antibacterial performance to be best exerted in the product, the antibacterial activity to escherichia coli, staphylococcus aureus and candida albicans reaches more than 95%, the antibacterial activity is still more than 80% after three months of high-temperature storage at 45 ℃, and the lasting antibacterial efficiency is high.
Description
Technical Field
The invention relates to the field of preparation of antibacterial microemulsion, and particularly relates to silver ion antibacterial microemulsion, a preparation method thereof and application thereof in laundry detergent.
Background
With the development of science and technology and the increasing improvement of the living standard of human beings, people have stronger health consciousness, and the laundry detergent in the market has poor bacteriostasis or killing capability on common pathogenic bacteria, has certain toxicity, is irritant to skin, pollutes the environment, and cannot meet the requirements of consumers on strong sterilization, lasting antibiosis and mild environmental protection of the laundry detergent.
At present, the antibacterial raw materials of the existing antibacterial laundry detergent in the market are triclosan, dichlorohenzene, parachlorometaxylenol and the like. Triclosan is toxic and resistant, so U.S. FDA promulgates a ban on the sale of bathing products containing triclosan in the U.S. market in 2016, 9, and 2, and cosmetic safety specifications in 2015 limit the range of triclosan use. Although the toxicity of dichloro-benzene is low, the bacteriostatic and bactericidal effects of dichloro-benzene are not strong, and the dichloro-benzene needs to be used in a laundry detergent at low concentration and low cost, so that the dichloro-benzene cannot meet the market bacteriostatic requirement. The biggest defect of the parachlorometaxylenol is that the bacteriostasis efficiency of fungi (such as candida albicans) is low, so that the broad-spectrum bacteriostasis requirement cannot be met.
The silver ion is an ideal antibacterial agent due to the unique sterilization mechanism, and has the advantages of safety, broad spectrum, long-acting property, no drug-resistant bacteria and obvious antibacterial effect when being used as the antibacterial agent, but sodium chloride is added into common antibacterial laundry detergents and is easy to react with the silver ion to generate precipitate, so that the stability of the silver ion in the laundry detergent and the lasting antibacterial property of the laundry detergent are greatly reduced, the appearance of the laundry detergent is greatly influenced due to easy aging and discoloration in the use process, and the antibacterial activity can be lost after long-time high-temperature storage.
Disclosure of Invention
The first purpose of the invention is to provide a silver ion antibacterial microemulsion which is not easy to generate precipitate, has high lasting antibacterial efficiency and is high temperature resistant so as to solve the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the silver ion antibacterial microemulsion is prepared by reacting the following raw materials in parts by weight:
the above silver nitrate is 0.1 to 0.2 parts by weight, for example, 0.11 part, 0.12 part, 0.13 part, 0.14 part, 0.15 part, 0.16 part, 0.17 part, 0.18 part and 0.19 part, and the silver nitrate provides silver ions to form a silver-ammonia complex with ammonia water in an aqueous solution.
The above aqueous ammonia is 1.0 to 2.0 parts by weight, for example, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts and 1.9 parts, and the aqueous ammonia is mainly coordinated and chelated with silver ions to form a silver-ammonia complex.
The ethanolamine is 0.2-2.0 parts by weight, such as 0.2 part, 0.4 part, 0.6 part, 0.8 part, 1.0 part, 1.2 parts, 1.4 parts, 1.6 parts and 1.8 parts, and can assist in improving the stability of the silver-ammonia complex, so that the product has enhanced adaptation stability in the laundry detergent and no precipitate is precipitated.
The weight portion of the Tween 80 is 0.2-2.0 portions, such as 0.2 portion, 0.4 portion, 0.6 portion, 0.8 portion, 1.0 portion, 1.2 portions, 1.4 portions, 1.6 portions and 1.8 portions, the Tween 80 is a nonionic surfactant, and the strong hydrophilicity is favorable for forming a stable micro emulsion after emulsification.
The dodecyl benzene sulfonic acid accounts for 1.5-3.0 parts by weight, such as 1.7 parts, 1.9 parts, 2.0 parts, 2.2 parts, 2.4 parts, 2.5 parts, 2.7 parts and 2.9 parts, on one hand, the dodecyl benzene sulfonic acid can reduce the alkalinity of the silver ammonia water solution and improve the mildness of the product, and on the other hand, the dodecyl benzene sulfonic acid can form an anionic surfactant with ammonia water to improve the stability of the silver ammonia solution with positive charges.
The above polyvinylpyrrolidone is in an amount of 0.1 to 0.5 parts by weight, for example, 0.13 parts, 0.15 parts, 0.18 parts, 0.20 parts, 0.22 parts, 0.25 parts, 0.28 parts, 0.30 parts, 0.32 parts, 0.35 parts, 0.37 parts, 0.40 parts, 0.43 parts, 0.45 parts and 0.48 parts; the above acrylic resin is 0.2 to 2.0 parts by weight, for example, 0.2 part, 0.4 part, 0.6 part, 0.8 part, 1.0 part, 1.2 parts, 1.4 parts, 1.6 parts and 1.8 parts; the polyvinylpyrrolidone and the acrylic resin also have certain coordination ability and can coordinate and chelate with silver ions, and after the polyvinylpyrrolidone and the acrylic resin are used in the laundry detergent, the polyvinylpyrrolidone and the acrylic resin can link the silver ions to stay and adsorb on the surface of the textile fabric, so that the antibacterial performance of the textile fabric is improved.
The above-mentioned ethanol is present in an amount of 2.0 to 10 parts by weight, for example, 2.5 parts, 3.0 parts, 3.5 parts, 4.0 parts, 4.5 parts, 5.0 parts, 5.5 parts, 6.0 parts, 6.5 parts, 7.0 parts, 7.5 parts, 8.0 parts, 8.5 parts, 9.0 parts and 9.5 parts.
The deionized water is 70 to 90 parts by weight, such as 72 parts, 75 parts, 78 parts, 80 parts, 82 parts, 85 parts, 87 parts and 89 parts.
The second purpose of the invention is to provide a preparation method of the silver ion antibacterial micro emulsion, which comprises the following steps:
(1) adding silver nitrate, ethanolamine and ammonia water into deionized water in proportion, uniformly stirring, adding 1.0-2.0 parts of Tween 80 and 1.5-3.0 parts of dodecylbenzene sulfonic acid in parts by weight, heating and stirring at 25-45 ℃ for 0.5-2.0 hours to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone and acrylic resin into an ethanol solution, wherein the mass ratio of the polyvinylpyrrolidone to the acrylic resin to the ethanol is 0.1-0.5: 0.2-2.0: 2.0 to 10, heating, stirring and dissolving to obtain a mixed alcohol solution;
(3) and (2) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed, reducing the speed to 300-500rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 1.0-2.0 hours to obtain the silver ion antibacterial microemulsion.
In the technical scheme, the heating and stirring temperature in the step (1) is 25-45 ℃, the solubilization effect cannot be achieved when the temperature is less than 25 ℃, and silver ions in the silver ion solution are easily oxidized by oxygen in the air to cause color change or black when the temperature is higher than 45 ℃.
Further, the mass ratio of the silver nitrate, the ethanolamine, the ammonia water and the deionized water added in the step (1) is 0.1-0.2: 1.0-2.0: 1.0-2.0: 70-90. The dosage of silver nitrate is too low, the bacteriostatic performance of the antibacterial micro emulsion with medium and low addition amount is insufficient, the dosage is too high, silver ions are easy to oxidize and agglomerate, and the stability is not good; if the content of ammonia water and ethanolamine is too low, silver ions are not completely complexed or complexes are easy to separate out when meeting salt, the product with too high dosage has too strong smell and the appearance is easy to turn yellow.
Further, in the step (2), the polyvinylpyrrolidone and the acrylic resin are added into the ethanol solution and are heated, stirred and dissolved for 0.5 to 1 hour at the temperature of between 50 and 85 ℃. The two raw materials of polyvinylpyrrolidone and acrylic resin have good solubility in ethanol, the dissolution rate of the two raw materials in the ethanol can be improved by selecting the dissolution temperature of 50-85 ℃, and the ethanol is easy to volatilize too fast and too much when the temperature is higher than 85 ℃.
Further, the silver ion complex solution in the step (3) is emulsified at a high speed of 2500-. Therefore, the surfactant Tween 80, the dodecylbenzene sulfonic acid and the aqueous silver ammonia solution can be fully mixed to enable the hydroalcoholic two-phase solution to be mixed to form a transparent and uniform micro-emulsion solution, if the stirring speed is not enough, the micro-emulsion can be turbid and can not become a transparent solution, the stability of the micro-emulsion can be influenced, the bacteriostatic performance can be reduced, and meanwhile, the antibacterial micro-emulsion can not be applied to the laundry detergent with the transparent appearance requirement.
Further, the silver ion antibacterial micro-emulsion is colorless to light yellow transparent liquid, and the pH value range of the acid and the alkali is 9.0-12.0. Therefore, silver ions can be prevented from being oxidized to enable the silver-ammonia solution to be stable and durable, and if the pH value exceeds 12, the alkalinity of the antibacterial micro emulsion can be obviously improved when the antibacterial micro emulsion is added into the laundry detergent, so that the index control of the laundry detergent product is influenced.
The third purpose of the invention is to provide the application of the silver ion antibacterial micro emulsion as an additive in laundry detergent.
The silver ion antibacterial microemulsion provided by the invention has the following beneficial effects:
firstly, a silver-ammonia complex solution is preliminarily formed by a silver nitrate solution, ammonia water and ethanolamine, the adaptability of the silver-ammonia solution in a laundry detergent containing sodium chloride is improved by polyvinylpyrrolidone and acrylic resin, the addition amount of each raw material is controlled in an optimal range so that the antibacterial performance of silver ions in the product is optimal, and the antibacterial activity on escherichia coli, staphylococcus aureus and candida albicans reaches more than 95 percent and is far higher than the antibacterial efficiency of the existing triclosan antibacterial laundry detergent; in addition, the dodecylbenzene sulfonic acid and the Tween 80 are added as a combined intermediate, so that the acrylic resin alcohol solution can be uniformly dispersed and dissolved in the silver ammonia water solution to form the transparent antibacterial microemulsion, the silver ion antibacterial microemulsion has strong antibacterial performance in the laundry detergent, and due to the linking effect of the polyvinylpyrrolidone and the acrylic resin, part of silver ions can be adsorbed and fixed in textiles after the textiles are washed by the laundry detergent, so that the textiles are durably bacteriostatic, and after three months of high-temperature storage at 45 ℃, the bacteriostatic activity of the textiles is still kept above 80%, and the high-temperature resistance is good.
Drawings
FIG. 1 is a graph showing comparative analysis of the bacteriostatic efficiency of the silver ion antibacterial microemulsion of example 1 of the present invention;
FIG. 2 is a graph showing the bacteriostatic efficiency of the silver ion antibacterial microemulsion of example 1 after three months of high-temperature storage.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Unless otherwise specified, various starting materials of the present invention are commercially available or prepared according to conventional methods in the art.
Example 1
The silver ion antibacterial microemulsion is prepared by reacting the following raw materials in parts by weight:
when the silver ion antibacterial microemulsion is prepared, the raw materials are added according to the adding amount, and the method comprises the following steps:
(1) adding silver nitrate, ethanolamine and ammonia water into deionized water in proportion, uniformly stirring, adding tween 80 and dodecylbenzene sulfonic acid, heating at 30 ℃ and stirring for 0.5 hour to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone and acrylic resin into an ethanol solution, wherein the mass ratio of the polyvinylpyrrolidone to the acrylic resin to the ethanol is 0.2: 1: 5, heating, stirring and dissolving for 1 hour at the temperature of 60 ℃ to obtain a mixed alcohol solution;
(3) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed of 2500rpm for 10 minutes, then reducing the speed to 400rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 1.0 hour to obtain the silver ion antibacterial microemulsion.
Example 2
The silver ion antibacterial microemulsion is prepared by reacting the following raw materials in parts by weight:
when the silver ion antibacterial microemulsion is prepared, the raw materials are added according to the adding amount, and the method comprises the following steps:
(1) adding silver nitrate and ammonia water into deionized water according to a certain proportion, uniformly stirring, then adding Tween 80 and dodecylbenzene sulfonic acid, heating and stirring at 40 ℃ for 0.5 hour to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone and acrylic resin into an ethanol solution, wherein the mass ratio of the polyvinylpyrrolidone to the acrylic resin to the ethanol is 0.2: 1.5: 6, heating, stirring and dissolving for 0.5 hour at 85 ℃ to obtain a mixed alcohol solution;
(3) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed of 4000rpm for 5 minutes, then reducing the speed to 400rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 2.0 hours to obtain the silver ion antibacterial micro emulsion.
Example 3
The silver ion antibacterial microemulsion is prepared by reacting the following raw materials in parts by weight:
when the silver ion antibacterial microemulsion is prepared, the raw materials are added according to the adding amount, and the method comprises the following steps:
(1) adding silver nitrate, ethanolamine and ammonia water into deionized water in proportion, uniformly stirring, adding dodecylbenzene sulfonic acid, heating at 45 ℃ and stirring for 2 hours to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone and acrylic resin into an ethanol solution, wherein the mass ratio of the polyvinylpyrrolidone to the acrylic resin to the ethanol is 0.2: 2: 10, heating, stirring and dissolving for 1 hour at 85 ℃ to obtain a mixed alcohol solution;
(3) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed of 5000rpm for 5 minutes, then reducing the speed to 500rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 2.0 hours to obtain the silver ion antibacterial microemulsion.
Example 4
The silver ion antibacterial microemulsion is prepared by reacting the following raw materials in parts by weight:
when the silver ion antibacterial microemulsion is prepared, the raw materials are added according to the adding amount, and the method comprises the following steps:
(1) adding silver nitrate, ethanolamine and ammonia water into deionized water in proportion, uniformly stirring, adding tween 80 and dodecylbenzene sulfonic acid, heating at 30 ℃ and stirring for 0.5 hour to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone into an ethanol solution, wherein the mass ratio of polyvinylpyrrolidone to ethanol is 0.2: 10, heating, stirring and dissolving for 1 hour at 80 ℃ to obtain a mixed alcohol solution;
(3) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed of 4000rpm for 10 minutes, then reducing the speed to 300rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 1.0 hour to obtain the silver ion antibacterial micro emulsion.
The silver ion antibacterial microemulsion prepared in the embodiment 1 and a commercially available triclosan antibacterial agent are respectively added into a laundry detergent according to the mass fraction of 0.5%, detection is carried out according to the QB/T2850 plus 2007 antibacterial bacteriostatic detergent standard, the detection result is shown in figure 1, the bacteriostatic activity of the laundry detergent prepared by adding the silver ion antibacterial microemulsion prepared in the embodiment 1 on escherichia coli, staphylococcus aureus and candida albicans reaches more than 95%, and the bacteriostatic effect is far higher than that of the commercially available bacteriostatic laundry detergent taking triclosan as the antibacterial agent. After the silver ion antibacterial micro-emulsion laundry detergent prepared in the example 1 is stored at a high temperature of 45 ℃ for three months, as can be seen from fig. 2, the antibacterial activity on escherichia coli, staphylococcus aureus and candida albicans can be still maintained above 80%.
The ionic antibacterial microemulsions prepared in example 2, example 3 and example 4 were added to the laundry detergent in a mass fraction of 0.5%, and the results were obtained by testing the ionic antibacterial microemulsions according to QB/T2850-.
The above examples are only intended to illustrate the detailed process of the present invention, and the present invention is not limited to the above detailed process, i.e., it is not intended that the present invention necessarily depends on the above detailed process for its implementation. It is understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention and the addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (7)
1. The silver ion antibacterial microemulsion is characterized by being prepared by reacting the following raw materials in parts by weight:
2. the preparation method of the silver ion antibacterial microemulsion according to claim 1, which is characterized by comprising the following steps:
(1) adding silver nitrate, ethanolamine and ammonia water into deionized water in proportion, uniformly stirring, adding 0.2-2.0 parts of Tween 80 and 1.5-3.0 parts of dodecylbenzene sulfonic acid in parts by weight, heating and stirring at 25-45 ℃ for 0.5-2.0 hours to obtain a silver ion complex solution;
(2) adding polyvinylpyrrolidone and acrylic resin into an ethanol solution, wherein the mass ratio of the polyvinylpyrrolidone to the acrylic resin to the ethanol is 0.1-0.5: 0.2-2.0: 2.0 to 10, heating, stirring and dissolving to obtain a mixed alcohol solution;
(3) and (2) homogenizing and emulsifying the silver ion complex solution in the step (1) at a high speed, reducing the speed to 300-500rpm, electrically stirring, dropwise adding the mixed alcohol solution in the step (2) into the emulsified silver ion complex solution, and keeping the electric stirring for 1.0-2.0 hours to obtain the silver ion antibacterial microemulsion.
3. The preparation method of the silver ion antibacterial microemulsion according to claim 2, wherein the mass ratio of the silver nitrate, the ethanolamine, the ammonia water and the deionized water added in the step (1) is 0.1-0.2: 1.0-2.0: 1.0-2.0: 70-90.
4. The method for preparing the silver ion antibacterial microemulsion according to claim 2, wherein in the step (2), polyvinylpyrrolidone and acrylic resin are added into an ethanol solution, and the mixture is heated, stirred and dissolved for 0.5 to 1 hour at 50 to 85 ℃.
5. The method for preparing the silver ion antibacterial microemulsion according to claim 2, wherein the silver ion complex solution in the step (3) is emulsified at a high speed of 2500-.
6. The preparation method of the silver ion antibacterial microemulsion according to any one of claims 2 to 5, wherein the silver ion antibacterial microemulsion is colorless to light yellow transparent liquid, and the pH value of the silver ion antibacterial microemulsion is 9.0-12.0.
7. The application of the silver ion antibacterial micro emulsion prepared by the preparation method of any one of claims 2-6 as an additive in laundry detergent.
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| JPH0386797A (en) * | 1989-08-31 | 1991-04-11 | Mitsubishi Motors Corp | Carburetor detergent |
| WO2004104153A1 (en) * | 2003-05-22 | 2004-12-02 | Neb Technologies Co., Ltd | Manufacturing method of liquid laundry detergent with nano-sized silver colloid |
| CN1480516A (en) * | 2003-07-14 | 2004-03-10 | 何俊虹 | Dedicated wash and maintenance liquid containing silver ion for sterilization of underwear |
| CN102271691A (en) * | 2008-12-05 | 2011-12-07 | 克劳罗克斯公司 | Natural silver disinfectant compositions |
| CN102258064A (en) * | 2011-05-12 | 2011-11-30 | 赵正坤 | Antibacterial composition and application thereof |
| CN106318668A (en) * | 2016-08-24 | 2017-01-11 | 石海光 | Underwear cleaning fluid |
| CN109370799A (en) * | 2018-11-22 | 2019-02-22 | 中山榄菊日化实业有限公司 | A kind of antimicrobial laundry liquid and application thereof |
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| CN110184137A (en) | 2019-08-30 |
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