CN113150669A - Surface mildew-resistant antibacterial antiviral membrane spraying liquid for central air conditioner ventilating pipeline and preparation method and application thereof - Google Patents
Surface mildew-resistant antibacterial antiviral membrane spraying liquid for central air conditioner ventilating pipeline and preparation method and application thereof Download PDFInfo
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- CN113150669A CN113150669A CN202110451614.1A CN202110451614A CN113150669A CN 113150669 A CN113150669 A CN 113150669A CN 202110451614 A CN202110451614 A CN 202110451614A CN 113150669 A CN113150669 A CN 113150669A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
The invention discloses an anti-mildew, antibacterial and antiviral spray film liquid for the surface of a central air-conditioning ventilating duct, which comprises the following raw materials: 35-45 wt% of polyurethane emulsion, 35-45 wt% of 2-3% of di C18 alkyl dimethyl ammonium chloride solution, 3.5-5.0 wt% of perfume, 2-6 wt% of propylene glycol, 0.5-1.5 wt% of 2% sodium hydroxide solution, 0.5-1.5 wt% of alkoxy alkane nonionic wetting agent, 0.5-1.5 wt% of organic silicon defoamer, 0.3-0.8 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.1-0.2 wt% of EDTA disodium. In addition, the preparation method and the application of the anti-mildew, antibacterial and antiviral spray film liquid on the surface of the central air-conditioning ventilation pipeline are also disclosed. The invention forms the film spraying liquid which has the functions of resisting mildew, bacteria and viruses and can be sprayed to form a film through the formula design, and can form a film coating layer on the surface needing to be cleaned and disinfected, thereby playing the roles of resisting mildew, bacteria, viruses, leakage and acid-base corrosion for a long time.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an anti-mildew, antibacterial and antiviral membrane spraying liquid for the surface of a central air conditioner ventilating duct, and a preparation method and application thereof.
Background
The central air-conditioning ventilation system has the following problems for a long time:
(1) the breeding of bacteria and spreading of epidemic situation
A plurality of legionella, hemolytic streptococcus and other pathogens causing respiratory tract infection are accumulated in an air conditioner which is not cleaned for a long time, and if the air conditioner is used without being cleaned, respiratory tract infection, allergic dermatosis, high fever, chill, cough, chest pain and other respiratory tract disease symptoms are easily caused. In 2006, the ministry of health found that the legionella detection rate is as high as 24.5% in the spot inspection of centralized air conditioners in public places all over the country.
Legionella is the most deadly killer hidden in central air conditioners. If the centralized air conditioner is polluted by legionella, people are easy to infect legionnaires' disease. Legionnaires' disease is a disease with a relatively high mortality rate, and once outbreaks occur, the damage is considerable, and the mortality rate is generally reported to be 5% to 30%.
Because the air duct forms a relatively closed space with the room through the air outlet and the air return inlet, dust and germs in the air duct can be blown to each corner of the room along with air conditioner wind and gradually become a pollution source of indoor air; meanwhile, germs in one room are easily blown to other rooms along with air-conditioning circulating wind to form cross infection.
(2) Produce mould and emit odor
Darkness, humidity and warmth are three conditions required for growth of mold, and a centralized air conditioner is easy to generate various mold harmful to human health (see table 1 for details). The air conditioner mildew is not only unpleasant to smell, but also harmful to health, and can cause adverse reactions such as headache, fever, sudden sore throat, tonsil infection, asthma, influenza symptom, dermatitis, wound healing difficulty and the like to human bodies.
(3) Dust and dirt accumulation and air pollution
The dust accumulation of the air duct exceeds 5g/m2In time, PM10 exceeds standard, indoor air is polluted, PM10 is easier to enter human bodies,the retention time in the environment is longer, and the adsorbed heavy metals and toxic and harmful substances are more, so the harm to human bodies is larger. A number of epidemiological studies on PM10 have shown that an increase in the concentration of inhalable particulate matter is closely related to the morbidity and mortality of the disease, especially respiratory and cardiopulmonary diseases.
(4) Rat and insect collection and harm to health
Because the air duct is mostly arranged in a ceiling board of a building and is relatively hidden, and the temperature in the air duct is relatively suitable in four seasons, the air duct is often used as a space for the movement of mice and cockroaches.
The air-conditioning air duct which is not cleaned for a long time stores rat and insect, cockroach, mite and excrement thereof, dead bodies of the cockroach and mouse and small animals can be possibly contained in the air duct, germs carried on the dead bodies can be transmitted to human bodies through air, and when people are in an air-conditioning room, odor polluted by the dead bodies is breathed for a long time, so that health is harmed.
(5) Increase wind resistance and energy consumption
The air flows in the air duct, and the friction force in the air duct needs to be overcome. If the air duct becomes dusty and fouled, the internal friction is increased, thereby requiring more energy to overcome the resistance and increasing energy consumption.
Therefore, the cleaning and sterilization of the central air conditioning ventilation duct has become a non-negligible problem. Particularly, when a confirmed case and a suspected case of new coronary pneumonia occur, the air conditioning ventilation system must be cleaned and disinfected, and can be restarted after qualified through hygiene evaluation. However, the disinfection of the surface of the central air-conditioning ventilation pipeline is always a difficult point, the current method is to clean the surface of the central air-conditioning ventilation pipeline only once a year, and the surface of the central air-conditioning ventilation pipeline is cleaned by using a disinfectant, so that the operation of a professional is required, the disinfection is carried out by wiping the surface of the central air-conditioning ventilation pipeline with the disinfectant, time and labor are wasted, and the normal daily operation is difficult to carry out. In addition, because the pipeline has a complex trend, a horizontal trend, a vertical trend and a slope trend, a plurality of dead corners are difficult to clean during cleaning, and the hidden danger of epidemic prevention is remained.
In addition, the disinfectant on the surface of the central air-conditioning ventilation pipeline adopted at present mainly comprises hypochlorous acid disinfectant and compound quaternary ammonium salt. The two types of disinfectant have mild to moderate corrosion to carbon steel, and have a corrosion effect on ventilating ducts made of carbon steel of the centralized air conditioner after long-term use.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the mildew-resistant antibacterial antiviral membrane spraying liquid on the surface of the central air conditioner ventilating duct, and the membrane spraying liquid which has the mildew-resistant antibacterial antiviral function and can be sprayed to form a membrane is formed through formula design, so that a coating layer is formed on the surface needing cleaning and disinfection, and the lasting mildew-resistant, antibacterial, antiviral, antiseep, acid and alkali corrosion resistant effects are achieved. The invention also aims to provide a preparation method and application of the anti-mildew, antibacterial and antiviral spray film liquid for the surfaces of the central air-conditioning ventilation pipelines.
The purpose of the invention is realized by the following technical scheme:
the invention provides an anti-mildew, antibacterial and antiviral spray film liquid for the surface of a central air conditioner ventilating duct, which comprises the following raw materials: 35-45 wt% of polyurethane emulsion, 35-45 wt% of 2-3% of di C18 alkyl dimethyl ammonium chloride solution, 3.5-5.0 wt% of perfume, 2-6 wt% of propylene glycol, 0.5-1.5 wt% of 2% sodium hydroxide solution, 0.5-1.5 wt% of alkoxy hydrocarbon alkyl nonionic wetting agent, 0.5-1.5 wt% of organic silicon defoamer, 0.3-0.8 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.1-0.2 wt% of EDTA disodium.
In the scheme, the alkoxy hydrocarbon alkane nonionic wetting agent is 2.4.7.9-tetramethyl-5-decyne-4.7-diol (DDTM); the organic silicon defoaming agent is polydimethylsiloxane.
The other purpose of the invention is realized by the following technical scheme:
the preparation method of the surface mildew-resistant antibacterial antiviral spray film liquid of the central air-conditioning ventilating duct provided by the invention comprises the following steps:
(1) cleaning the dissolving pot, each filter screen, each pipeline and the emulsifying pot by using tap water, adding purified water into the dissolving pot and the emulsifying pot, heating the dissolving pot and the emulsifying pot by using steam, and discharging the heated materials through all pipelines and valves;
(2) dissolved quaternary ammonium salts
a. Adding purified water into a dissolving pot, heating to 50 +/-3 ℃, adding propylene glycol, and stirring for 5-10 min to ensure that the liquid is uniform; then adding 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride for dissolving;
b. continuously adding 75% of di-C18 alkyl dimethyl ammonium chloride, then adding EDTA disodium and purified water to prepare a 2-3% di-C18 alkyl dimethyl ammonium chloride solution, and stirring for 5-10 min to obtain a quaternary ammonium salt solution;
(3) mixing the raw materials in an emulsifying pot
a. Adding purified water into an emulsifying pot, then adding a polyurethane emulsion, an alkoxy hydrocarbon alkane nonionic wetting agent, a 2% sodium hydroxide solution and a perfume, and stirring for 5-10 min;
b. adding the quaternary ammonium salt solution obtained in the step (2), stirring for 5-10 min, adding an organic silicon defoaming agent, and stirring for 5-10 min to obtain a membrane spraying solution;
(4) filling
And standing the film spraying liquid and filling.
The application of the anti-mildew, antibacterial and antiviral spray film liquid on the surface of the central air-conditioning ventilating duct provided by the invention is 8-10 m2The dosage of the/Kg is that the spraying is carried out on the position needing to be coated, and the coating thickness is 10-15 mu m.
The invention has the following beneficial effects:
(1) the technical principle of the film spraying liquid is based on the physical action of killing and adsorbing film forming and wrapping of double-long-chain composite organic silicon modified quaternary ammonium salt, as shown in figure 1, the technical principle is as follows:
1) physical action killing: the quaternary ammonium salt ions with positive charges firmly adsorb microbes such as bacteria and fungi with negative charges, and the permeability of bacterial cell walls is changed to enable enzymes, coenzymes and metabolic intermediates in the microbes to overflow, so that the microbes stop the respiratory function and die, thereby achieving the effects of sterilization and bacteriostasis, namely 'contact death'.
2) Adsorption film forming and wrapping: in the organosilicon quaternary ammonium salt compound, R2 is an active group, can be hydrolyzed into hydroxyl, and is subjected to polycondensation to form a polysiloxane insoluble film containing a Si-O-Si structure; meanwhile, hydroxyl generated by hydrolysis can react with-OH on the object surface and the fiber, and a covalent bond is formed by dehydration condensation and forms a firm film with the object surface and the fabric surface.
(2) The invention covers the surface of the central air-conditioning ventilating duct in the form of a film, is also suitable for positions such as wall surfaces, ceilings and the like, and has the effects of mildew resistance (class 0), antibiosis (antibacterial rate is more than or equal to 99 percent and antibacterial rate is more than or equal to 95 percent in durability), antivirus (virus inactivation rate is more than or equal to 90 percent and virus inactivation rate is more than or equal to 85 percent in durability), leakage prevention and acid and alkali corrosion resistance. The paint is mainly applied to places requiring space environment with mildew resistance, antibiosis, antivirus, leakage resistance and acid and alkali corrosion resistance, and is particularly suitable for hospitals, laboratories, machine rooms, underground buildings, ships, imported goods and frozen goods storage places, painting and calligraphy storage places and other important places. After the film is sprayed, cleaning the central air-conditioning ventilation pipeline, wherein the cleaning time can be 1 time per year generally; the wall surface and the ceiling are cleaned, and the cleaning time can be usually 1 time per season according to the condition.
Drawings
The invention will now be described in further detail with reference to the following examples and the accompanying drawings:
FIG. 1 is a schematic view of the technical principle of the membrane-spraying liquid of the present invention;
FIG. 2 shows the molecular structure of a coating film formed by the deposition solution of the present invention.
Detailed Description
The first embodiment is as follows:
1. the embodiment provides a surface mildew-resistant antibacterial antiviral membrane spraying liquid for a central air conditioner ventilating duct, which comprises the following raw materials: 45 wt% of polyurethane emulsion, 45 wt% of di-C18 alkyl dimethyl ammonium chloride (dioctadecyl dimethyl ammonium chloride) solution with the concentration of 2.6%, 4.5 wt% of perfume, 2 wt% of propylene glycol, 1 wt% of sodium hydroxide solution with the concentration of 2%, 1 wt% of alkoxy hydrocarbon alkyl nonionic wetting agent, 1 wt% of organic silicon defoaming agent, 0.4 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.1 wt% of EDTA disodium.
Wherein the alkoxy hydrocarbon alkyl nonionic wetting agent is 2.4.7.9-tetramethyl-5-decyne-4.7-diol (DDTM); the organic silicon defoaming agent is polydimethylsiloxane.
2. The preparation method of the anti-mildew, antibacterial and antiviral membrane spraying liquid for the surface of the central air-conditioning ventilating duct comprises the following steps:
(1) cleaning a dissolving pot, each filter screen, each pipeline and an emulsifying pot by using tap water, adding half-pot purified water into the dissolving pot and the emulsifying pot, heating the dissolving pot and the emulsifying pot to 115 ℃ by using steam, keeping the temperature for 5min, and discharging the solution through all pipelines and valves;
(2) dissolved quaternary ammonium salts
a. Adding purified water into a dissolving pot, heating to 50 +/-3 ℃, adding propylene glycol, stirring for 5min to ensure that the liquid is uniform, and then adding 3- (trimethoxysilyl) propyl dimethyloctadecyl ammonium chloride to dissolve the ammonium chloride;
b. continuously adding 75% of di-C18 alkyl dimethyl ammonium chloride into the dissolving pot, then adding EDTA disodium and purified water to prepare a 2.6% di-C18 alkyl dimethyl ammonium chloride solution, and stirring for 5min to obtain a quaternary ammonium salt solution;
(3) mixing the raw materials in an emulsifying pot
a. Adding purified water into an emulsifying pot, adding polyurethane emulsion, alkoxy hydrocarbon alkane nonionic wetting agent, 2% sodium hydroxide solution and perfume, and stirring for 10 min;
b. adding the quaternary ammonium salt solution obtained in the step (2), stirring for 10min, adding an organic silicon defoaming agent, and stirring for 5min to obtain a membrane spraying solution;
(4) filling
Standing the membrane-spraying solution for 8h, and then filling.
Example two:
1. the embodiment provides a surface mildew-resistant antibacterial antiviral membrane spraying liquid for a central air conditioner ventilating duct, which comprises the following raw materials: 41.85 wt% of polyurethane emulsion, 43.5 wt% of di-C18 alkyl dimethyl ammonium chloride (dioctadecyl dimethyl ammonium chloride) solution with the concentration of 2.2%, 5 wt% of perfume, 5.2 wt% of propylene glycol, 1.2 wt% of sodium hydroxide solution with the concentration of 2%, 1.5 wt% of alkoxy hydrocarbon alkyl nonionic wetting agent, 0.8 wt% of organic silicon defoaming agent, 0.8 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.15 wt% of EDTA disodium.
Wherein the alkoxy hydrocarbon alkyl nonionic wetting agent is 2.4.7.9-tetramethyl-5-decyne-4.7-diol (DDTM); the organic silicon defoaming agent is polydimethylsiloxane.
2. The preparation method of the anti-mildew, antibacterial and antiviral membrane spraying liquid for the surface of the central air-conditioning ventilating duct comprises the following steps:
(1) cleaning a dissolving pot, each filter screen, each pipeline and an emulsifying pot by using tap water, adding half-pot purified water into the dissolving pot and the emulsifying pot, heating the dissolving pot and the emulsifying pot to 115 ℃ by using steam, keeping the temperature for 5min, and discharging the solution through all pipelines and valves;
(2) dissolved quaternary ammonium salts
a. Adding purified water into a dissolving pot, heating to 50 +/-3 ℃, adding propylene glycol, stirring for 8min to ensure that the liquid is uniform, and then adding 3- (trimethoxysilyl) propyl dimethyloctadecyl ammonium chloride to dissolve the ammonium chloride;
b. continuously adding 75% of di-C18 alkyl dimethyl ammonium chloride into the dissolving pot, then adding EDTA disodium and purified water to prepare a 2.2% di-C18 alkyl dimethyl ammonium chloride solution, and stirring for 8min to obtain a quaternary ammonium salt solution;
(3) mixing the raw materials in an emulsifying pot
a. Adding purified water into an emulsifying pot, adding polyurethane emulsion, alkoxy hydrocarbon alkane nonionic wetting agent, 2% sodium hydroxide solution and perfume, and stirring for 8 min;
b. adding the quaternary ammonium salt solution obtained in the step (2), stirring for 8min, adding an organic silicon defoaming agent, and stirring for 10min to obtain a membrane spraying solution;
(4) filling
Standing the membrane-spraying solution for 8h, and then filling.
Example three:
1. the embodiment provides a surface mildew-resistant antibacterial antiviral membrane spraying liquid for a central air conditioner ventilating duct, which comprises the following raw materials: 40.9 wt% of polyurethane emulsion, 45 wt% of di-C18 alkyl dimethyl ammonium chloride (dioctadecyl dimethyl ammonium chloride) solution with the concentration of 2.8%, 3.5 wt% of perfume, 5.5 wt% of propylene glycol, 1.5 wt% of sodium hydroxide solution with the concentration of 2%, 1.5 wt% of alkoxy hydrocarbon alkyl nonionic wetting agent, 1.5 wt% of organic silicon defoaming agent, 0.4 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.2 wt% of EDTA disodium.
Wherein the alkoxy hydrocarbon alkyl nonionic wetting agent is 2.4.7.9-tetramethyl-5-decyne-4.7-diol (DDTM); the organic silicon defoaming agent is polydimethylsiloxane.
2. The preparation method of the anti-mildew, antibacterial and antiviral membrane spraying liquid for the surface of the central air-conditioning ventilating duct comprises the following steps:
(1) cleaning a dissolving pot, each filter screen, each pipeline and an emulsifying pot by using tap water, adding half-pot purified water into the dissolving pot and the emulsifying pot, heating the dissolving pot and the emulsifying pot to 115 ℃ by using steam, keeping the temperature for 5min, and discharging the solution through all pipelines and valves;
(2) dissolved quaternary ammonium salts
a. Adding purified water into a dissolving pot, heating to 50 +/-3 ℃, adding propylene glycol, stirring for 10min to ensure that the liquid is uniform, and then adding 3- (trimethoxysilyl) propyl dimethyloctadecyl ammonium chloride to dissolve the ammonium chloride;
b. continuously adding 75% of di-C18 alkyl dimethyl ammonium chloride into the dissolving pot, then adding EDTA disodium and purified water to prepare a 2.8% di-C18 alkyl dimethyl ammonium chloride solution, and stirring for 10min to obtain a quaternary ammonium salt solution;
(3) mixing the raw materials in an emulsifying pot
a. Adding purified water into an emulsifying pot, adding polyurethane emulsion, alkoxy hydrocarbon alkane nonionic wetting agent, 2% sodium hydroxide solution and perfume, and stirring for 5 min;
b. adding the quaternary ammonium salt solution obtained in the step (2), stirring for 5min, adding an organic silicon defoaming agent, and stirring for 8min to obtain a membrane spraying solution;
(4) filling
Standing the membrane-spraying solution for 8h, and then filling.
The application of the anti-mildew, antibacterial and antiviral spray solution on the surface of the central air-conditioning ventilating duct in each embodiment of the invention is as follows: according to the length of 8-10 m2The coating is uniformly sprayed on a ventilating duct or a wall surface or a ceiling to form a film (the molecular structure of the coating is shown in figure 2), the thickness of the coating is 10-15 mu m, and the phenomenon of self-flowing is avoided. The properties of the formed coating film were tested as follows:
1. the antibacterial, antifungal and antiviral properties of the film-sprayed liquid of the embodiment of the invention are shown in tables 1 and 2.
TABLE 1 antibacterial, antimycotic Properties
TABLE 2 antiviral Properties
2. Acid and alkali corrosion resistance: the test method is that the film spraying sample plate is immersed in HCl (10%) water solution with the pH value of 2-3 for 48 hours, and the film does not bubble and fall off.
Claims (4)
1. The surface mildew-resistant antibacterial antiviral membrane spraying liquid for the central air-conditioning ventilation pipeline is characterized by comprising the following raw materials: 35-45 wt% of polyurethane emulsion, 35-45 wt% of 2-3% of di C18 alkyl dimethyl ammonium chloride solution, 3.5-5.0 wt% of perfume, 2-6 wt% of propylene glycol, 0.5-1.5 wt% of 2% sodium hydroxide solution, 0.5-1.5 wt% of alkoxy alkane nonionic wetting agent, 0.5-1.5 wt% of organic silicon defoamer, 0.3-0.8 wt% of 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride and 0.1-0.2 wt% of EDTA disodium.
2. The surface mildew-resistant antibacterial antiviral membrane spraying liquid for the central air-conditioning ventilation pipeline according to claim 1, which is characterized in that: the alkoxy hydrocarbon alkane nonionic wetting agent is 2.4.7.9-tetramethyl-5-decyne-4.7-diol (DDTM); the organic silicon defoaming agent is polydimethylsiloxane.
3. A method for preparing the anti-mildew, antibacterial and antiviral spray solution for the surfaces of the ventilation pipelines of the centralized air conditioners as claimed in claim 1 or 2, which is characterized by comprising the following steps:
(1) cleaning the dissolving pot, each filter screen, each pipeline and the emulsifying pot by using tap water, adding purified water into the dissolving pot and the emulsifying pot, heating the dissolving pot and the emulsifying pot by using steam, and discharging the heated materials through all pipelines and valves;
(2) dissolved quaternary ammonium salts
a. Adding purified water into a dissolving pot, heating to 50 +/-3 ℃, adding propylene glycol, and stirring for 5-10 min to ensure that the liquid is uniform; then adding 3- (trimethoxysilyl) propyl dimethyl octadecyl ammonium chloride for dissolving;
b. continuously adding 75% of di-C18 alkyl dimethyl ammonium chloride, then adding EDTA disodium and purified water to prepare a 2-3% di-C18 alkyl dimethyl ammonium chloride solution, and stirring for 5-10 min to obtain a quaternary ammonium salt solution;
(3) mixing the raw materials in an emulsifying pot
a. Adding purified water into an emulsifying pot, then adding a polyurethane emulsion, an alkoxy hydrocarbon alkane nonionic wetting agent, a 2% sodium hydroxide solution and a perfume, and stirring for 5-10 min;
b. adding the quaternary ammonium salt solution obtained in the step (2), stirring for 5-10 min, adding an organic silicon defoaming agent, and stirring for 5-10 min to obtain a membrane spraying solution;
(4) filling
And standing the film spraying liquid and filling.
4. The application of the anti-mildew, antibacterial and antiviral spray solution on the surface of the central air-conditioning ventilation pipeline as claimed in claim 1 or 2 is characterized in that: according to the length of 8-10 m2The dosage of the/Kg is that the spraying is carried out on the position needing to be coated, and the coating thickness is 10-15 mu m.
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| CN202110451614.1A CN113150669A (en) | 2021-04-26 | 2021-04-26 | Surface mildew-resistant antibacterial antiviral membrane spraying liquid for central air conditioner ventilating pipeline and preparation method and application thereof |
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| CN202110451614.1A CN113150669A (en) | 2021-04-26 | 2021-04-26 | Surface mildew-resistant antibacterial antiviral membrane spraying liquid for central air conditioner ventilating pipeline and preparation method and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102669179A (en) * | 2012-05-30 | 2012-09-19 | 北京崇高纳米科技有限公司 | Antibacterial antiviral treating agent, preparation method and application thereof |
| CN111500137A (en) * | 2020-05-18 | 2020-08-07 | 刘白玲 | Antibacterial and antiviral emulsion adhesive film-forming agent, preparation method and application thereof |
| CN111961374A (en) * | 2020-08-20 | 2020-11-20 | 北京一撕得物流技术有限公司 | Antibacterial and antiviral coating, preparation method and application thereof |
-
2021
- 2021-04-26 CN CN202110451614.1A patent/CN113150669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102669179A (en) * | 2012-05-30 | 2012-09-19 | 北京崇高纳米科技有限公司 | Antibacterial antiviral treating agent, preparation method and application thereof |
| CN111500137A (en) * | 2020-05-18 | 2020-08-07 | 刘白玲 | Antibacterial and antiviral emulsion adhesive film-forming agent, preparation method and application thereof |
| CN111961374A (en) * | 2020-08-20 | 2020-11-20 | 北京一撕得物流技术有限公司 | Antibacterial and antiviral coating, preparation method and application thereof |
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