CN113662011B - Surface long-acting antibacterial disinfectant, preparation method and application thereof - Google Patents
Surface long-acting antibacterial disinfectant, preparation method and application thereof Download PDFInfo
- Publication number
- CN113662011B CN113662011B CN202111053688.6A CN202111053688A CN113662011B CN 113662011 B CN113662011 B CN 113662011B CN 202111053688 A CN202111053688 A CN 202111053688A CN 113662011 B CN113662011 B CN 113662011B
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- acting antibacterial
- antibacterial disinfectant
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 64
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
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- 229910021389 graphene Inorganic materials 0.000 claims description 17
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
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Abstract
The invention discloses a surface long-acting antibacterial disinfectant, a preparation method and application thereof. The surface long-acting antibacterial disinfectant adopting the structure, the preparation method and the application thereof have the advantages of good killing performance, one-time spraying, long-term effectiveness, safety, friendliness and easiness in transportation and storage.
Description
Technical Field
The invention relates to the technical field of disinfectants, in particular to a surface long-acting antibacterial disinfectant and a preparation method and application thereof.
Background
Most of the existing antibacterial disinfectants adopt peroxyacetic acid, hydrogen peroxide, chlorine dioxide, (organic) chlorine-containing disinfectants, iodine disinfectants, alcohol disinfectants and the like. Among the disinfectants listed above, except that the alcohol disinfectants have outstanding disinfecting and killing effects and little influence on human bodies, ecological environments and the like, the other disinfectants all have the possibility of influencing the environment, and the alcohol disinfectants are expensive, flammable and explosive and are not easy to store and transport. Chlorine disinfection is widely used due to low cost, but the use of chlorine-containing disinfectants in densely populated places is easy to cause threat to human health, and the use of a large amount of chlorine-containing disinfectants and the discharge of the chlorine-containing disinfectants are easy to cause environmental pollution. And the acting force disappears after the spraying is finished, and the spraying needs to be repeated for many times every day.
The existing antibacterial and disinfectant agents only have a single antibacterial and disinfectant function, and many antibacterial and disinfectant agents have no broad-spectrum efficacy and often only have a single targeted effect. And does not have air-purifying and deodorizing properties.
Disclosure of Invention
The invention aims to provide a surface long-acting antibacterial disinfectant, a preparation method and application thereof, wherein the disinfectant has good killing performance, is sprayed once, is effective for a long time, is safe and friendly, and is easy to transport and store.
In order to achieve the purpose, the invention provides a surface long-acting antibacterial disinfectant, a preparation method and application thereof.
Preferably, the titanium salt is one or more of titanium tetrachloride, titanyl sulfate, metatitanic acid, titanate and derivatives thereof.
Preferably, the alcohol is one or more of methanol, ethanol, ethylene glycol, propanol (isopropanol), glycerol, etc.
Preferably, the graphene is one or more of 3-10 layers of graphene (including chemical method and physical method), graphene oxide and the like.
Preferably, the ferric trichloride is anhydrous ferric trichloride.
Preferably, the auxiliary material is one or more of titanium sol, silica sol and aluminum sol.
A preparation method of a surface long-acting antibacterial disinfectant is characterized by comprising the following steps:
(1) preparation of component A
a) Pumping the alcohol substances into a batching kettle through a metering pump, starting stirring, and starting jacket cooling water for cooling;
b) pumping the titanium salt into a batching kettle through a metering pump, and cooling while stirring until the titanium salt and the alcohols are fully mixed and reacted;
c) adding a certain amount of graphene and a certain amount of ferric trichloride;
d) continuously stirring and reacting for 0.5-2 hours to obtain a preparation liquid C;
e) transferring the preparation liquid C into a special reaction kettle, and heating the reaction kettle by a reaction kettle jacket, wherein the temperature is controlled to be 100-400 ℃, and the reaction time is controlled to be 8-24 hours;
f) after the reaction is finished, the pressure generated by the reaction of the reaction kettle is released into the cyclone separator through the bottom valve of the reaction kettle to realize the separation of gas and solid,the solid powder is received by a container at the bottom of the separator to obtain self-dispersed graphene and iron-doped nano titanium dioxide powder, namely a component A, the powder is monodisperse in a 5-nanometer scale, and the gas enters a tail gas treatment device and is discharged after being treated qualified; fe 3+ The crystal forms a doping energy level (intermediate state) after doping titanium dioxide, the photoresponse wavelength range of the titanium dioxide is widened, and the light utilization rate is increased;
j) blowing residual powder in the reaction kettle into a cyclone separator by using nitrogen until the reaction kettle is completely blown, further drying the component A in a vacuum drier to remove volatile organic matters in the component A, and feeding tail gas into a tail gas treatment device to be discharged after the tail gas is qualified;
(2) preparation of component B
h) Running water passes through an RO reverse osmosis membrane treatment unit to remove ions in the water to obtain pure water, and the pure water is added with an additive and then enters an electrolytic water device to obtain acidic oxidation potential micromolecule water, namely a component B; the strong acid (oxidation) potential water has high oxidation potential, active oxygen and active chlorine, and can kill bacteria within several seconds when contacting with the bacteria, compared with the common disinfectant, the strong acid (oxidation) potential water does not need to worry about the permeation and the residue of the medicament, can change the potential of the cell membrane of the microorganism, so that the permeability of the cell membrane is enhanced, the cell metabolic enzyme is damaged, the microorganism is killed, and the strong acid (oxidation) potential water is reduced into the common water after being disinfected;
(3) preparation of surface long-acting antibacterial disinfectant
i) The component A, the component B and auxiliary materials are prepared in a proportioning kettle according to a certain ratio to obtain the final product surface long-acting antibacterial disinfectant, wherein the mass percentage is as follows: and (B) component: 0.5-5% of auxiliary materials: 94-99%: 0.5 percent.
Preferably, the addition amount of the graphene in the step c) is 0.01-0.5% of the mass fraction of the system, and the addition amount of the ferric trichloride is 0.01-0.5% of the mass fraction of the system.
Preferably, the additive in the step h) is one or more of food-grade sodium chloride, potassium chloride, magnesium chloride and hydrochloric acid.
The application of the surface long-acting antibacterial disinfectant is characterized in that the surface long-acting antibacterial disinfectant is applied to indoor environment long-acting antibacterial disinfection, in-vehicle environment long-acting antibacterial disinfection, personal protection and sanitation, building antibacterial mildew prevention and the like.
The invention has the beneficial effects that:
1. the sterilizing agent has good sterilizing performance, a large amount of bacteria and viruses (air and object surfaces) are propagated on the spot when public health incidents occur under common conditions, and the bacteria and the viruses existing in the environment need to be effectively sterilized when the agent is sprayed on the spot;
2. the spraying is carried out for a long time, so that the using amount of the disinfectant can be reduced to the maximum extent, but the disinfection capability and level cannot be reduced, the best method is to form a long-acting stable antibacterial and disinfectant protective film on the surface of a sprayed object, and the film layer is required to have high-efficiency antibacterial and disinfectant capability and is not easy to fall off;
3. the product is safe and friendly, all components of the product are safe to human bodies, and the product is environment-friendly and does not cause environmental pollution;
4. the product is easy to transport and store, is aqueous, basically has no corrosivity, is non-inflammable and non-explosive, releases no toxic substances, and can be stored for about 2 years without deterioration.
The technical solution of the present invention is further described in detail by the following examples.
Detailed Description
The present invention will be further described with reference to examples, in which various chemicals and reagents are commercially available unless otherwise specified.
Examples
Will in the alcohols material squeezes into the batching cauldron through the measuring pump to open the stirring, open jacket cooling water and cool down, will in the titanium salt squeezes into the batching cauldron through the measuring pump, cool down while stirring, until titanium salt and alcohols intensive mixing reaction. Adding a certain amount of graphene and a certain amount of ferric trichloride, wherein the adding amount of the graphene is 0.01-0.5% of the mass fraction of the system, and the adding amount of the ferric trichloride is 0.01-0.5% of the mass fraction of the system, and continuously stirring and reacting for 0.5-2 hours to obtain a preparation liquid C.
Transferring the prepared solution C into a special reaction kettle, and heating the reaction kettle by a reaction kettle jacket, wherein the temperature is controlled to be 100-400 ℃, and the reaction time is controlled to be 8-24 hours. After the reaction is finished, the pressure generated by the reaction of the reaction kettle is released into the cyclone separator through a bottom valve of the reaction kettle, so that the separation of gas and solid is realized, the solid powder is received by a container at the bottom of the separator to obtain the self-dispersed graphene and iron-doped nano titanium dioxide powder, namely the component A, and the powder is monodisperse in a 5 nanometer scale.
And the gas enters a tail gas treatment device and is discharged after being treated qualified. And blowing residual powder in the reaction kettle into a cyclone separator by using nitrogen until the reaction kettle is completely blown, further drying the component A in a vacuum drier to remove volatile organic matters in the component A, and allowing tail gas to enter a tail gas treatment device for qualified treatment and then discharging.
Running water passes through an RO reverse osmosis membrane treatment unit to remove ions in the water to obtain pure water, and the pure water is added with an additive and then enters an electrolytic water device to obtain acidic oxidation potential micromolecule water, namely the component B. The additive is one or more of food-grade sodium chloride, potassium chloride, magnesium chloride and hydrochloric acid, namely the acidic oxidation potential micromolecule water contains hypochlorous acid, the content of the hypochlorous acid is 30-300 ppm, and the oxidation potential is more than 1400 mv.
And (3) preparing the component A, the component B and an auxiliary material in a proportioning kettle according to a certain ratio to obtain the final product surface long-acting antibacterial disinfectant, wherein the auxiliary material is one of titanium sol, silica sol and aluminum sol. Wherein the mass percentage is as follows: and (B) component: 0.5-5% of auxiliary materials: 94-99%: 0.5 percent.
The application of the surface long-acting antibacterial disinfectant prepared by the embodiment is as follows:
indoor environment long-acting antibacterial and antivirus: such as hospital wards, offices, operating rooms, etc.; public transportation places such as high-speed rail stations, subway stations, carriage interiors, buses, airports and the like; such as hotels, restaurants, movie theaters, tea houses, etc.; such as offices, schools, kindergartens and the like of enterprises and institutions; such as residential buildings, nursing homes, etc.
Long-acting antibacterial and antivirus in the environment inside the vehicle: various cars, cabins, aircraft cabins, locomotive carriages and the like.
Personal protection and hygiene: the long-acting antibacterial and disinfectant on the surface can be used as a personal protective product, provides disinfection protection for 30 days, and is used for long-acting antibacterial and disinfectant of mobile phone and computer screens, keyboards, underwear, masks, towels, protective clothing, shoes and socks, table tops and the like.
And (3) antibacterial and mildewproof of buildings: the long-acting antibacterial disinfectant for the surfaces is sprayed on the surfaces of objects such as walls, ceilings, furniture, floors, doors and windows, door handles, curtains, toilets and the like, has instant and strong antibacterial and disinfectant effects, and meanwhile, the active components of the long-acting antibacterial disinfectant for the surfaces are attached to the surfaces of the objects, so that long-acting antibacterial and disinfectant protection for more than 3 months is provided.
The surface long-acting antibacterial and antivirus agent has broad-spectrum antibacterial and antivirus effects, and is used for treating all bacteria and viruses (including coronavirus, influenza virus, African swine fever, avian influenza and the like).
The surface long-acting antibacterial disinfectant not only has the antibacterial and disinfectant effects, but also can purify indoor air and decompose harmful gases such as formaldehyde, benzene compounds, TVOC, ammonia gas and the like.
The surface long-acting antibacterial disinfectant also has a deodorizing function, and can remove odor of a toilet, odor of a pet, fishy smell of bait, fishy smell of seafood, smoke, shoe odor and the like.
The surface long-acting antibacterial disinfectant prepared by the embodiment of the invention is subjected to an antibacterial and disinfectant test.
The long-acting antibacterial disinfectant on the surface prepared in the embodiment is used for carrying out a blank control experiment to test antibacterial performance, and the test results are shown in table 1:
TABLE 1
The long-acting antibacterial disinfectant prepared in the embodiment is sprayed on the surface of a mask, and a cytotoxicity experiment and an antiviral test are performed by using influenza viruses.
The test method is as follows:
test site: shanghai disease prevention and control center, building 419, No. 2.
Virus suspension: influenza virus type A III (A3/SH/1/98), chick embryo subcultured.
Concussion sample liquids with equal gradient concentrations are respectively prepared by coating a long-acting antibacterial disinfectant on the surface and a common mask, cytotoxicity experiments are performed on MDCK cells by using the concussion sample liquids, and test results are shown in Table 2:
TABLE 2
| Stock solution | 1:2 | 1:4 | 1:8 | 1:16 | 1:32 | 1:64 | 1:128 | Cell comparison | |
| Bacteriostatic high-filtering mask sample sheet | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- |
| Comparing with common mask sample | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- |
Remarking: "+" indicates cytotoxic effect and "-" indicates no cytotoxic effect
The antiviral test results are shown in table 3.
TABLE 3
As can be seen from tables 1-3, the surface long-acting antibacterial disinfectant prepared by the embodiment of the invention has good antibacterial and disinfectant properties, no toxic effect on cells and strong long-acting surface antiviral ability.
Therefore, the surface long-acting antibacterial disinfectant obtained by the invention comprises all inorganic components, wherein the active component has the hypochlorous acid content of 30-300 ppm, the oxidation potential is greater than 1400mv, the active component graphene and iron doped self-dispersion nano titanium dioxide is a weak light type photocatalyst, and the self-dispersion nano titanium dioxide photocatalyst has stronger catalytic capability and good adhesive force and is 5-nanometer monodisperse, can easily enter the interior of the surface of an object and is embedded in surface gaps through further excitation of oxidation potential micromolecule water, and cannot fall off even if being wiped vigorously.
The product has strong capability of sterilizing and disinfecting, and simultaneously forms a nano photocatalytic film layer, thereby having long-acting broad-spectrum antibacterial and disinfecting capability.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (9)
1. The long-acting antibacterial disinfectant with the surface is characterized by comprising a component A, a component B and auxiliary materials, wherein the component A, the component B and the auxiliary materials are inorganic components, the component A is self-dispersed graphene and iron-doped nano titanium dioxide powder, the powder is monodisperse in a size of 5 nanometers, and the component B is acidic oxidation potential small molecular water;
the preparation method of the long-acting antibacterial disinfectant for the surface comprises the following steps:
(1) preparation of component A
a) Pumping the alcohol substance into a batching kettle through a metering pump, starting stirring, and starting jacket cooling water for cooling;
b) pumping titanium salt into a batching kettle through a metering pump, and cooling while stirring until the titanium salt is fully mixed with alcohols for reaction;
c) adding a certain amount of graphene and a certain amount of ferric trichloride;
d) continuously stirring and reacting for 0.5-2 hours to obtain a preparation liquid C;
e) transferring the preparation liquid C into a special reaction kettle, and heating the reaction kettle through a reaction kettle jacket, wherein the temperature is controlled to be 100-400 ℃, and the reaction time is controlled to be 8-24 hours;
f) after the reaction is finished, releasing the pressure generated by the reaction of the reaction kettle into a cyclone separator through a bottom valve of the reaction kettle to realize the separation of gas and solid, receiving the solid powder by a container at the bottom of the separator to obtain self-dispersed graphene and iron-doped nano titanium dioxide powder, namely a component A, wherein the powder is monodisperse in a 5-nanometer scale, and the gas enters a tail gas treatment device to be discharged after being treated;
j) blowing residual powder in the reaction kettle into a cyclone separator by using nitrogen until the reaction kettle is completely blown, further drying the component A in a vacuum drier to remove volatile organic matters in the component A, and feeding tail gas into a tail gas treatment device to be discharged after the tail gas is qualified;
(2) preparation of component B
h) Running water passes through an RO reverse osmosis membrane treatment unit to remove ions in the water to obtain pure water, and the pure water is added with an additive and then enters an electrolytic water device to obtain acidic oxidation potential micromolecule water, namely a component B;
(3) preparation of surface long-acting antibacterial disinfectant
i) The component A, the component B and auxiliary materials are prepared in a proportioning kettle according to a certain proportion to obtain the final product surface long-acting antibacterial disinfectant, wherein the mass percentage is as follows: and (B) component: auxiliary material = 0.5-5%: 94-99%: 0.5 percent.
2. A surface long-acting antibacterial disinfectant according to claim 1, characterized in that: the titanium salt is one or more of titanium tetrachloride, titanyl sulfate, metatitanic acid, titanate and derivatives thereof.
3. A surface long-acting antibacterial disinfectant according to claim 1, characterized in that: the alcohol is one or more of methanol, ethanol, ethylene glycol, isopropanol and glycerol.
4. A surface long-acting antibacterial disinfectant according to claim 1, characterized in that: the graphene is one or more of 3-10 layers of graphene and graphene oxide.
5. A surface long-acting antibacterial disinfectant according to claim 1, characterized in that: the ferric trichloride is anhydrous ferric trichloride.
6. A surface long-acting antibacterial disinfectant according to claim 1, characterized in that: the auxiliary material is one or more of titanium sol, silica sol and aluminum sol.
7. The long-acting antibacterial disinfectant for surfaces according to claim 1, wherein the addition amount of graphene in step c) is 0.01% -0.5% of the mass fraction of the system, and the addition amount of ferric trichloride is 0.01% -0.5% of the mass fraction of the system.
8. The long-acting surface antibacterial disinfectant according to claim 1, wherein the additive in step h) is one or more of food-grade sodium chloride, potassium chloride, magnesium chloride and hydrochloric acid.
9. The use of a surface long-acting antibacterial disinfectant according to any one of claims 1 to 8, wherein the surface long-acting antibacterial disinfectant is applied to long-acting antibacterial disinfection for indoor environment, long-acting antibacterial disinfection for environment in a vehicle, personal protection and hygiene, and antibacterial and mildewproof of buildings.
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