CN111587892A - Long-acting clothes disinfectant and preparation method thereof - Google Patents
Long-acting clothes disinfectant and preparation method thereof Download PDFInfo
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- CN111587892A CN111587892A CN202010432013.1A CN202010432013A CN111587892A CN 111587892 A CN111587892 A CN 111587892A CN 202010432013 A CN202010432013 A CN 202010432013A CN 111587892 A CN111587892 A CN 111587892A
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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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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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
- 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
- A01N25/28—Microcapsules or nanocapsules
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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
- 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
- A01N25/30—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 characterised by the surfactants
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic System
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
- D06M11/65—Salts of oxyacids of nitrogen
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
Abstract
The invention provides a long-acting clothing disinfectant, which comprises the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water; wherein, the slow release microcapsule comprises the following components in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt. The invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps: preparing cation type hybrid silica sol; preparing a slow-release microcapsule by using cationic hybrid silica sol; adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, and stirring for dissolving to obtain the long-acting clothing disinfectant. The long-acting clothes disinfectant provided by the invention has multiple disinfection forms and lasting effect, and can effectively improve the protection effect of textiles.
Description
Technical Field
The invention relates to the technical field of disinfection products, in particular to a long-acting clothes disinfectant and a preparation method thereof.
Background
Since 2000, infectious diseases caused by pathogenic viruses such as influenza virus, "sars" virus, new coronavirus, etc. have continuously outbreaked and spread worldwide, seriously threatening human life. Among them, the new coronavirus pneumonia which is outbreak at the end of 2019 is a serious test which people face all over the world, and at present, more than 40% of cases are cross-infection caused by insufficient protection in hospitals, clinics, nursing homes and other epidemic prevention frontlines. The existing protective measures such as regular disinfection of places can only play a temporary role in disinfecting the environment, dust, aerosol and liquid drops carrying viruses can be temporarily isolated on the outer surface of clothes only by physical isolation and electrostatic adsorption when people wear traditional protective clothing, protective caps, masks and other textile clothes, but the accumulation of a large amount of viruses and the characteristic of long survival time of part of viruses enable people to bear the risk of infection.
In order to reduce the number of germs in textiles such as clothes, sheets, hats, etc., which are in direct contact with the human body, people usually sterilize the textiles. The disinfectants adopted at present are generally chlorine-containing disinfectants (chlorine dioxide, sodium hypochlorite, triclosan and the like), alcohols, iodides, biguanides, quaternary ammonium salts and the like, wherein the iodides, biguanides, quaternary ammonium salts and the like mainly have a remarkable inhibiting effect on bacteria and have a very small effect on microorganisms such as coronavirus and the like; chlorine-containing disinfectants and 75% alcohol have been proven to have a broad and highly effective killing and inhibiting effect on most viruses including coronavirus, whereas in daily use, alcohol is difficult to use for disinfection of clothes due to its flammability and explosiveness, and chlorine-containing disinfectants are used for disinfection of clothes without a sustained effect, and thus have been limited in the field of clothes disinfection. Meanwhile, with the increasing severity of epidemic situations, people have higher and higher requirements on keeping clothes anti-bacteria for a long time, but the effect timeliness of the traditional clothes disinfection product is generally finished along with the completion of the disinfection process, and the traditional clothes disinfection product cannot play a better protection role in the use process of people.
Therefore, a preparation technology of the slow-release disinfectant is developed, is applied to textiles such as clothes and the like, has the capability of killing germs, can slowly release the disinfectant, is tightly combined with the clothes, and synergistically prolongs the action time on the clothes, so that the preparation technology has important significance for killing germs attached to the clothes at any time and reducing the infection probability of personnel.
Disclosure of Invention
In view of the above, the invention provides a long-acting clothes disinfectant capable of prolonging the action time, and also provides a preparation method of the long-acting clothes disinfectant.
The invention provides a long-acting clothing disinfectant, which comprises the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water.
Further, the slow-release microcapsule comprises a core material, an organic compound shell layer and an inorganic compound shell layer, wherein the organic compound shell layer and the inorganic compound shell layer are sequentially coated on the outer side of the core material from inside to outside, the core material is formed by a chlorine-containing disinfectant, the organic compound shell layer is formed by a first organic polymer, and the inorganic compound shell layer is formed by a second organic polymer, cationic hybrid silica sol and metal salt.
Further, the weight parts of the raw materials for forming the slow-release microcapsule are as follows: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.
Further, the sustained-release microcapsule is prepared by the following process: (1) adding water into the chlorine-containing disinfectant for dilution to prepare a chlorine-containing disinfectant solution; (2) adding water into the first organic polymer to prepare a first organic polymer solution, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion; (3) adding water into the metal salt and the second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution, sequentially adding the second organic polymer solution and the metal salt solution into the cation hybrid silica sol, and uniformly stirring to obtain a second mixed emulsion; (4) and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment after dropwise addition, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 mu m.
Further, the cationic hybrid silica sol is prepared by the following process: mixing a cosolvent, a catalyst, a precursor and an additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain cation hybrid silica sol with the particle size of about 2-15 nm; wherein the weight parts of the raw materials are as follows: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive; the cosolvent is ethanol, the catalyst is hydrochloric acid, the precursor is ethyl orthosilicate, and the additive is dioctadecyl dimethyl ammonium chloride.
Further, the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 500-30000, the molecular weight of polyvinyl alcohol is 30000-150000, the molecular weight of polyvinylpyrrolidone is 20000-300000, and the mass fraction of the prepared first organic polymer solution is 1% -30%. Preferably, the mass fraction of the first organic polymer solution prepared is 2% to 15%.
Further, the chlorine-containing disinfectant is one or a mixture of sodium hypochlorite and chlorine dioxide, and the mass fraction of the prepared chlorine-containing disinfectant solution is 0.1% -50%. Preferably, the prepared chlorine-containing disinfectant solution has a mass fraction of 5% -50%.
Further, the metal salt is at least one of copper chloride, silver nitrate and zinc chloride.
Further, the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 500-30000, the molecular weight of polyvinyl alcohol is 30000-150000, the molecular weight of polyvinylpyrrolidone is 20000-300000, and the mass fraction of the prepared second organic polymer solution is 1% -30%. Preferably, the second organic polymer solution is prepared to have a mass fraction of 2% to 15%.
Further, the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E.
Further, the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.
The invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps:
step S1, preparing cation hybrid silica sol;
step S2, preparing sustained-release microcapsules by using cation hybrid silica sol;
step S3, preparing a long-acting laundry disinfectant: adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, and stirring for dissolving to obtain the long-acting clothing disinfectant.
Further, in step S1, the preparation process of the cation hybrid silica sol is as follows: mixing the cosolvent, the catalyst, the precursor and the additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain the cation hybrid silica sol with the particle size of about 2-15 nm.
Further, the cation hybrid silica sol is prepared from the following raw materials in parts by weight: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive.
Further, the cosolvent is ethanol, the catalyst is hydrochloric acid, the precursor is ethyl orthosilicate, and the additive is dioctadecyldimethylammonium chloride.
Further, in step S2, the process for preparing the sustained-release microcapsule is as follows: adding water into the chlorine-containing disinfectant for dilution to prepare a chlorine-containing disinfectant solution with the mass fraction of 0.1-50%; adding water into the first organic polymer to prepare a first organic polymer solution with the mass fraction of 1-30%, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion for 1-5 min; adding water into the metal salt and the second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution with the mass fraction of 1% -30%, adding the second organic polymer solution into the cation hybrid silica sol, stirring for 30-60min, then adding the metal salt solution, and stirring for 10-30im to obtain a second mixed emulsion; and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment for 1-5min after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 microns.
Further, the weight parts of the raw materials for preparing the slow-release microcapsule are as follows: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.
Further, the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 30000-.
Further, the chlorine-containing disinfectant is any one or a mixture of sodium hypochlorite and chlorine dioxide.
Further, the metal salt is at least one of copper chloride, silver nitrate and zinc chloride.
Further, the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 30000-.
Further, the long-acting clothing disinfectant is prepared from the following raw materials in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water.
Further, the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E.
Further, the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.
The long-acting clothing disinfectant prepared by the invention is attached to medical and sanitary textiles (such as white gowns, hospital gowns, sickbed articles and the like) and daily textiles (such as clothing, bedding and the like) in a soaking or spraying mode, and can realize the antibiosis and disinfection for 1-3 months.
The mechanism for realizing long-time disinfection of the long-acting clothing disinfectant provided by the invention is as follows: after the chlorine-containing disinfectant and the first organic polymer are blended, the first organic polymer forms an organic compound shell layer to coat the unstable chlorine-containing disinfectant in a natural state, and the organic compound shell layer can delay the permeation and volatilization of the chlorine-containing disinfectant; after the first mixed emulsion is blended with the metal salt solution, the second organic polymer solution and the cation hybrid silica sol, the metal salt solution, the second organic polymer solution and the cation hybrid silica sol form an inorganic compound shell layer coated with an organic compound shell layer, the inorganic compound shell layer can further protect and delay permeation, meanwhile, the cation hybrid silica sol can form strong bonding force with anionic fibers in the later laundry finishing process, the loss of the slow-release microcapsules on clothes is effectively reduced, and the service life is prolonged.
Compared with the traditional clothes disinfectant, the long-acting clothes disinfectant provided by the invention has the following advantages:
1. the invention utilizes organic compound shell and inorganic compound shell to wrap the chlorine-containing disinfectant component to form the slow-release microcapsule, so that the chlorine-containing disinfectant can be stably and slowly released, and the action time of the disinfectant is prolonged; the chlorine-containing disinfectant component is matched with metal ions in the inorganic compound shell layer, so that bacteria and viruses can be effectively killed, and a synergistic disinfection effect is achieved;
2. the slow-release microcapsule in the formula of the long-acting clothing disinfectant provided by the invention is a cation slow-release microcapsule, and the slow-release microcapsule has the characteristics of adjustable structure, stable coating, controllable slow release, simple and convenient preparation, simple process for combining with textiles and the like, can effectively overcome the defects of short period of slow-release materials using gel and powder as carriers, high difficulty in combining with textiles and the like, can be combined with anionic fiber fabrics more firmly and not easily fall off, greatly reduces the loss of the slow-release microcapsule on fabrics, improves the utilization rate of the slow-release microcapsule, and prolongs the service life of the slow-release microcapsule;
3. the long-acting clothes disinfectant provided by the invention has multiple disinfection forms and lasting effect, can effectively improve the protection effect of textiles, and reduces the infection probability in hospitals and daily places.
Drawings
FIG. 1 is a schematic diagram of a process for preparing a long-acting laundry disinfectant according to example 1 of the present invention;
FIG. 2 is a schematic structural view of a sustained-release microcapsule prepared in example 1 of the present invention;
in fig. 2: 1-core material, 2-organic compound shell layer and 3-inorganic compound shell layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
The embodiment of the invention provides a long-acting clothing disinfectant, which comprises 1-30 parts of slow-release microcapsules, 0.1-5 parts of penetrants, 0.1-5 parts of dispersing agents and 60-98.8 parts of water in parts by weight; wherein the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E; the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween; the slow release microcapsule comprises a core material, an organic compound shell layer and an inorganic compound shell layer, wherein the organic compound shell layer and the inorganic compound shell layer are sequentially coated on the outer side of the core material from inside to outside, the core material is formed by a chlorine-containing disinfectant, the organic compound shell layer is formed by a first organic polymer, the inorganic compound shell layer is formed by a second organic polymer, cationic hybrid silica sol and metal salt, and the slow release microcapsule comprises the following raw materials in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.
In this embodiment, the chlorine-containing disinfectant is one or a mixture of sodium hypochlorite and chlorine dioxide, and the sodium hypochlorite or chlorine dioxide has the effect of killing microorganisms in a broad spectrum; the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of the polyethylene glycol is 500-30000, the molecular weight of the polyvinyl alcohol is 30000-150000, and the molecular weight of the polyvinylpyrrolidone is 20000-300000; the metal salt is at least one of copper chloride, silver nitrate and zinc chloride; the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of the polyethylene glycol is 500-30000, the molecular weight of the polyvinyl alcohol is 30000-150000, and the molecular weight of the polyvinylpyrrolidone is 20000-300000; the cation hybrid silica sol is prepared by mixing and stirring 15-20 parts by weight of cosolvent, 0.001-0.005 part by weight of catalyst, 6-15 parts by weight of precursor and 0.1-0.5 part by weight of additive, wherein the particle size of the mixture is about 2-15nm, the cosolvent is preferably ethanol, the catalyst is preferably hydrochloric acid, the precursor is preferably ethyl orthosilicate, and the additive is preferably dioctadecyldimethylammonium chloride.
The preparation process of the sustained-release microcapsule comprises the following steps: (1) adding water to 1-30 parts by weight of chlorine-containing disinfectant for dilution, and preparing to obtain a 0.1-50% chlorine-containing disinfectant solution in parts by weight; (2) adding water into 1-30 parts by weight of first organic polymer to prepare a first organic polymer solution with the mass fraction of 1% -30%, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion for 1-5 min; (3) adding water into 0.1-10 parts by weight of metal salt and 1-30 parts by weight of second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution with the mass fraction of 1% -30%, adding the second organic polymer solution into 1-30 parts by weight of cation hybrid silica sol, stirring for 30-60min, then adding the metal salt solution, and stirring for 10-30im to obtain a second mixed emulsion; (4) and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment for 1-5min after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 microns.
Preferably, the mass fraction of the first organic polymer solution is 2% to 15%.
Preferably, the mass fraction of the chlorine-containing disinfectant solution is 5% -50%.
Preferably, the mass fraction of the second organic polymer solution is 2% to 15%.
The embodiment of the invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps: adding 60-98.8 parts of water into 0.1-5 parts of dispersing agent by weight, uniformly stirring, then adding 0.1-5 parts of penetrating agent and 1-30 parts of slow-release microcapsule, and stirring and dissolving to obtain the long-acting clothing disinfectant.
The long-acting disinfectant for clothes and the preparation method thereof provided by the present invention will be described in detail with reference to the following examples.
Example 1:
preparing cation hybrid silica sol: weighing 8g of tetraethoxysilane, dissolving the tetraethoxysilane in 20g of ethanol, adding 0.2g of dioctadecyldimethylammonium chloride after uniformly stirring, adding 0.002g of hydrochloric acid after uniformly stirring, and then stirring for 2 hours at 50 ℃ to obtain 28.202g of cation hybrid silica sol.
Preparing the slow-release microcapsule: weighing 10g of sodium hypochlorite and dissolving in 100g of water to obtain a sodium hypochlorite solution; weighing 10g of polyvinyl alcohol, dissolving in 50g of water, uniformly stirring to obtain a polyvinyl alcohol solution, adjusting the rotating speed to 6000rpm, dropwise adding a sodium hypochlorite solution into the polyvinyl alcohol solution, carrying out ultrasonic treatment for 2min after the dropwise addition is finished, and continuously dispersing for 1h to obtain a first mixed emulsion; adding 10g of polyethylene glycol into 190g of water to obtain a polyethylene glycol solution, adding 2g of silver nitrate into 198g of water to obtain a silver nitrate solution, adding 20g of polyethylene glycol solution into 28.202g of cation hybrid silica sol, stirring for 40min, then adding 20g of silver nitrate solution, and stirring for 20min to obtain a second mixed emulsion; adjusting the rotating speed to 8000rpm, dropwise adding the first mixed emulsion into the second mixed emulsion, performing ultrasonic treatment for 3min after the dropwise addition is finished, continuously dispersing for 3h, standing for 1h, centrifuging, filtering out a lower-layer solid, washing with clear water, and drying in a 60 ℃ oven to obtain the slow-release microcapsule with the average diameter of 5 microns.
Preparing a long-acting clothes disinfectant: weighing 0.5g of Tween, adding into a beaker containing 60g of water, stirring uniformly, adding 0.5g of JFC-1, continuing stirring, finally adding 30g of slow-release microcapsule powder, and adding water until the solution reaches 100g to obtain the clothing disinfectant.
The preparation process of example 1 is shown in fig. 1, fig. 2 is a schematic structural view of the sustained-release microcapsule prepared in example 1, and in fig. 2, 1 represents a core material, 2 represents an organic compound shell layer, and 3 represents an inorganic compound shell layer.
In example 1, one portion per 1 g.
And (3) diluting the clothes disinfectant prepared in the example 1 by 50 times with water, then soaking the clothes in the diluted clothes disinfectant solution, taking out the clothes after 20min, and airing the clothes to finish the disinfection treatment of the clothes. Tests show that the antibacterial effect of the clothing disinfectant solution on textiles prepared by using cotton fabrics as base materials can reach more than 96 percent, and the duration time is 30 days under the condition of no washing.
Example 2:
preparing cation hybrid silica sol: weighing 10g of tetraethoxysilane, dissolving the tetraethoxysilane in 16g of ethanol, adding 0.1g of dioctadecyldimethylammonium chloride after uniformly stirring, adding 0.003g of hydrochloric acid after uniformly stirring, and then stirring for 2 hours at 50 ℃ to obtain 26.103g of cation hybrid silica sol.
Preparing the slow-release microcapsule: weighing 15g of sodium hypochlorite and dissolving the sodium hypochlorite in 100g of water to obtain a sodium hypochlorite solution; weighing 8g of polyvinyl alcohol, dissolving in 50g of water, uniformly stirring to obtain a polyvinyl alcohol solution, adjusting the rotating speed to 7000rpm, dropwise adding a sodium hypochlorite solution into the polyvinyl alcohol solution, carrying out ultrasonic treatment for 3min after the dropwise addition is finished, and continuously dispersing for 1.5h to obtain a first mixed emulsion; adding 1.05g of polyvinylpyrrolidone into 13.95g of water to obtain a polyvinylpyrrolidone solution, adding 2g of zinc oxide into 18g of water to obtain a zinc oxide solution, adding 15g of polyvinylpyrrolidone aqueous solution into 26.103g of cation hybrid silica sol, stirring for 30min, then adding 20g of zinc chloride solution, and stirring for 15min to obtain a second emulsion; adjusting the rotation speed to 10000rpm, dropwise adding the first mixed emulsion into the second mixed emulsion, performing ultrasonic treatment for 2min after the dropwise addition is finished, continuously dispersing for 3h, standing for 1h, centrifuging, filtering out a lower-layer solid, washing with clear water, and drying in an oven at 80 ℃ to obtain the slow-release microcapsule with the average diameter of 3 microns.
Preparing a long-acting clothes disinfectant: weighing 0.3g of span, adding the span into a beaker filled with 60g of water, uniformly stirring, adding 0.3g of JFC-E, continuously stirring, finally adding 20g of slow-release microcapsule powder, and adding water until the solution reaches 100g to obtain the clothes disinfectant.
In example 2, one portion per 1 g.
And (3) diluting the clothes disinfectant prepared in the embodiment 2 by 100 times, then soaking the clothes in the diluted clothes disinfectant solution, taking out the clothes after 30min, and airing the clothes to finish the disinfection treatment of the clothes. Tests show that the antibacterial effect of the clothing disinfectant solution on textiles prepared by using viscose fabrics as base materials can reach more than 98%, and the duration time of the clothing disinfectant solution is 25 days under the condition of no washing.
Example 3:
preparing cation hybrid silica sol: weighing 9g of tetraethoxysilane, dissolving the tetraethoxysilane in 20g of ethanol, adding 0.1g of dioctadecyldimethylammonium chloride after uniformly stirring, adding 0.001g of hydrochloric acid after uniformly stirring, and stirring for 2.5 hours at 45 ℃ to obtain 29.101g of cation hybrid silica sol.
Preparing the slow-release microcapsule: weighing 5g of chlorine dioxide, and dissolving in 100g of water to obtain a chlorine dioxide solution; weighing 7g of polyvinylpyrrolidone, dissolving the polyvinylpyrrolidone in 50g of water, uniformly stirring to obtain a polyvinylpyrrolidone solution, adjusting the rotating speed to 5000rpm, dropwise adding the chlorine dioxide solution into the polyvinylpyrrolidone solution, performing ultrasonic treatment for 1min after the dropwise addition is finished, and continuously dispersing for 1h to obtain a first mixed emulsion; weighing 1.8g of polyvinyl alcohol, adding the polyvinyl alcohol into 28.2g of water to obtain a polyvinyl alcohol solution, weighing 1g of silver nitrate, adding the silver nitrate into 19g of water to obtain a silver nitrate solution, adding 30g of the polyvinyl alcohol solution into 29.101g of cation hybrid silica sol, stirring for 50min, then adding 20g of the silver nitrate solution, and stirring for 20min to obtain a second mixed emulsion; adjusting the rotating speed to 6000rpm, dropwise adding the first mixed emulsion into the second mixed emulsion, performing ultrasonic treatment for 3min after the dropwise adding is finished, continuously dispersing for 2.5h, standing for 1h, centrifuging, filtering out a lower-layer solid, washing with clear water, and drying in an oven at 60 ℃ to obtain the slow-release microcapsule with the average diameter of 8 microns.
Preparing a long-acting clothes disinfectant: weighing 0.4g of polyoxyethylene fatty acid ester, adding the polyoxyethylene fatty acid ester into a beaker filled with 60g of water, uniformly stirring, adding 0.6g of JFC, continuously stirring, finally adding 10g of slow-release microcapsule powder, and adding water until the solution reaches 100g to obtain the clothes disinfectant.
In example 3, one portion per 1 g.
And (3) adding water into the clothes disinfectant prepared in the embodiment 3 to dilute by 60 times, then soaking the clothes in the diluted clothes disinfectant solution, taking out the clothes after 15min, and airing the clothes to finish the disinfection treatment of the clothes. Tests show that the antibacterial effect of the clothing disinfectant solution on textiles prepared by using modal fabrics as base materials can reach more than 99%, and the duration time of the clothing disinfectant solution is 50 days under the condition of no washing.
The long-acting clothes disinfectant prepared by the invention is mainly used for disinfecting textile clothes and has the following advantages:
1. the long-acting clothes disinfectant provided by the invention adopts metal ions and chlorine-containing disinfectant as disinfection components, has spectral sterilization and antiviral properties, and effectively overcomes the defect of antiviral performance of the existing product;
2. the invention adopts the organic-inorganic shell material to wrap the chlorine-containing disinfectant, and the chlorine-containing disinfectant greatly slows down the release and volatilization speed through the organic-inorganic shell material, thereby achieving the slow-release disinfection effect and prolonging the disinfection action time;
3. the slow-release microcapsule in the formula is a cationic slow-release microcapsule, can be combined with anionic fiber fabric more firmly and is not easy to fall off, the loss of the slow-release microcapsule on the fabric is greatly reduced, the utilization rate of the disinfection microcapsule is improved, the anti-bacterial life of the fabric is prolonged, the protective effect of the textile can be effectively and long-term improved, and the infection probability of hospitals and daily places is reduced;
4. the long-acting clothes disinfectant provided by the invention is simple in use method, can be attached to textile clothes in a soaking or spraying mode, is convenient to operate, can be carried out for multiple times, and is particularly suitable for batch disinfection in hospitals and daily clothes disinfection.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A long-acting disinfectant for clothes is characterized by comprising the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water; wherein, the slow release microcapsule comprises the following components in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.
2. The long-acting laundry disinfectant according to claim 1, wherein said cationic hybrid silica sol comprises, in parts by weight: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive.
3. The long-acting laundry disinfectant as claimed in claim 2, wherein said co-solvent is ethanol, said catalyst is hydrochloric acid, said precursor is ethyl orthosilicate, and said additive is dioctadecyldimethylammonium chloride.
4. The long-acting garment sanitizer according to claim 1, wherein the penetrant is at least one of JFC, JFC-1, JFC-2, JFC-E; the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.
5. The long-acting laundry disinfectant according to claim 1, wherein said chlorine-containing disinfectant is either sodium hypochlorite or chlorine dioxide or a mixture of both; the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone; the metal salt is at least one of copper chloride, silver nitrate and zinc chloride; the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone.
6. A method of preparing a long-acting laundry disinfectant as claimed in any of claims 1 to 5, comprising the steps of:
s1, preparing cation hybrid silica sol;
s2, preparing the slow-release microcapsule by using cation hybrid silica sol;
s3, adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, stirring and dissolving to obtain the long-acting clothing disinfectant.
7. The method for preparing a long-acting disinfectant for clothes as claimed in claim 6, wherein in step S1, the cationic hybrid silica sol is prepared by: mixing the cosolvent, the catalyst, the precursor and the additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain the cation hybrid silica sol.
8. The method of claim 6, wherein in step S2, the slow-release microcapsule is prepared by: adding water into the chlorine-containing disinfectant to prepare a chlorine-containing disinfectant solution; adding water into the first organic polymer to prepare a first organic polymer solution, and dropwise adding the chlorine-containing disinfectant solution into the first organic polymer solution to obtain a first mixed emulsion; adding water into metal salt and a second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution, sequentially adding the second organic polymer solution and the metal salt solution into cation hybrid silica sol, and uniformly stirring to obtain a second mixed emulsion; and dropwise adding the first mixed emulsion into the second mixed emulsion, carrying out ultrasonic treatment after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and thus obtaining the slow-release microcapsule.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115676779A (en) * | 2022-10-27 | 2023-02-03 | 中盐常州化工股份有限公司 | Sodium hypochlorite stabilizer and preparation method thereof |
| CN117162597A (en) * | 2023-10-12 | 2023-12-05 | 广州三森健康产业科技有限公司 | Breathable and antibacterial self-heating combined material and preparation method and application thereof |
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| CN109362779A (en) * | 2018-12-06 | 2019-02-22 | 唐山佐仑环保科技有限公司 | A kind of controllable sustained-release type chlorine dioxide material and one one-step preparation method |
| CN110574764A (en) * | 2019-08-23 | 2019-12-17 | 银河环保科技(天津)有限公司 | Slow-release chlorine dioxide gel powder and preparation method thereof |
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