CN110922792A - Mildew-proof nano coating with antibacterial property - Google Patents
Mildew-proof nano coating with antibacterial property Download PDFInfo
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- CN110922792A CN110922792A CN201911211230.1A CN201911211230A CN110922792A CN 110922792 A CN110922792 A CN 110922792A CN 201911211230 A CN201911211230 A CN 201911211230A CN 110922792 A CN110922792 A CN 110922792A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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Abstract
The invention relates to the technical field of chemical industry, in particular to a mildew-proof nano coating with antibacterial property; the components of the composition are as follows: titanium powder, ammonium sulfate, ammonium chloride, urea, a dispersing agent, talcum powder, calcium hydroxide and mica powder; the ammonium sulfate, the ammonium chloride and the urea are used as nitrogen sources to form a doping energy level between a conduction band and a valence band of the titanium dioxide, so that the electron transfer rate is effectively increased, the recombination of electron-hole pairs is reduced, the forbidden bandwidth of the titanium dioxide can be reduced, the absorption of the titanium dioxide to visible light is improved, the hole with strong oxidizing property has strong lethal ability to bacteria, and the nano coating also has strong antibacterial performance under sunlight; hydrogen peroxide can accelerate the sodium hydroxide to corrode the surface of the titanium powder, promote the titanium powder to be converted into titanium dioxide and reduce the energy required to be consumed in the chemical reaction; the silver nitrate and the zinc nitrate can have extremely high killing capability on various moulds of erosion coatings and coating films, and the using amount is small.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a mildew-proof nano coating with antibacterial property.
Background
The coating is traditionally named as paint in China. The coating is a continuous film which is coated on the surface of an object to be protected or decorated and can form firm adhesion with the object to be coated, and is a viscous liquid which is prepared by taking resin, oil or emulsion as a main material, adding or not adding pigments and fillers, adding corresponding auxiliaries and using an organic solvent or water. The book of coating technology which is relatively authoritative in the Chinese coating world is defined as follows: the paint is a material which can be coated on the surface of an object by different construction processes to form a continuous solid film with firm adhesion and certain strength. The film thus formed is generally called a coating film, also called a paint film or a coating. "the coating belongs to organic chemical high molecular material, and the formed coating film belongs to high molecular compound type. According to the modern popular classification of chemical products, the coating belongs to fine chemical products. Modern coatings are gradually becoming a multifunctional engineering material, an important industry in the chemical industry. Coatings can be classified into oil-based coatings, fiber coatings, synthetic coatings and inorganic coatings according to the main film-forming substances used in the coatings; according to the properties of the paint or paint film, the paint can be divided into solution, latex, sol, powder, bright, dull and colorful artistic paint and the like.
The traditional coating is easy to breed microorganisms, the microorganisms can propagate in large quantities by utilizing nutrient substances in the coating, and simultaneously along with the continuous propagation of the microorganisms, the destruction degree of the coating is continuously accelerated, and finally the coating is foamed, pulverized and dropped.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the mildew-proof nano coating with antibacterial property, which not only has stronger antibacterial property under sunlight, but also has extremely high killing capability on various mildew eroding coatings and films.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the mildew-proof nano coating with antibacterial performance comprises the following components in parts by weight: 45-65 parts of titanium powder, 14-26 parts of ammonium sulfate, 11-27 parts of ammonium chloride, 17-29 parts of urea, 25-35 parts of sodium hydroxide, 9-17 parts of hydrogen peroxide, 300 parts of deionized water 200-containing materials, 50-70 parts of ethanol, 21-34 parts of zinc nitrate, 13-37 parts of silver nitrate, 14-32 parts of dispersing agent, 19-31 parts of talcum powder, 12-24 parts of calcium hydroxide and 23-33 parts of mica powder.
Preferably, the preparation method of the mildew-proof nano coating with antibacterial performance comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
Preferably, the stirring speed in the step a is 150 r/min.
Preferably, the mass concentration of the hydrogen peroxide in the step a is 30%.
Preferably, the temperature of the oven in the step b is 120 ℃.
Preferably, the temperature of the muffle furnace in the step d is 500 ℃.
Preferably, the stirring speed in the step e is 270 r/min.
Has the advantages that:
according to the mildew-proof nano coating with antibacterial performance, ammonium sulfate, ammonium chloride and urea are used as nitrogen sources to form a doping energy level between a conduction band and a valence band of titanium dioxide, so that the electron transfer rate is effectively increased, the electron-hole pair recombination is reduced, the forbidden bandwidth of the titanium dioxide can be reduced, the absorption of the titanium dioxide on visible light is improved, and a strong oxidative hole has strong lethal capacity on bacteria, so that the nano coating also has strong antibacterial performance under sunlight; hydrogen peroxide can accelerate the sodium hydroxide to corrode the surface of the titanium powder, promote the titanium powder to be converted into titanium dioxide and reduce the energy required to be consumed in the chemical reaction; the silver nitrate and the zinc nitrate can have extremely high killing capability on various moulds of erosion coatings and coating films, and have the advantages of small using amount, wide application range and lasting effect; has no harm to human and livestock, low toxicity or no toxicity, and no irritation to skin and eyes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the mildew-proof nano coating with antibacterial performance comprises the following components in parts by weight: 45 parts of titanium powder, 18 parts of ammonium sulfate, 11 parts of ammonium chloride, 17 parts of urea, 25 parts of sodium hydroxide, 9 parts of hydrogen peroxide, 230 parts of deionized water, 57 parts of ethanol, 21 parts of zinc nitrate, 13 parts of silver nitrate, 20 parts of a dispersing agent, 19 parts of talcum powder, 16 parts of calcium hydroxide and 23 parts of mica powder.
The preparation method of the mildew-proof nano coating with antibacterial performance comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
The stirring speed in the step a is 150 r/min.
The mass concentration of the hydrogen peroxide in the step a is 30 percent.
The temperature of the oven in step b was 120 ℃.
The muffle furnace temperature in step d was 500 ℃.
The stirring speed in step e is 270 r/min.
Example 2:
the mildew-proof nano coating with antibacterial performance comprises the following components in parts by weight: 59 parts of titanium powder, 14 parts of ammonium sulfate, 21 parts of ammonium chloride, 25 parts of urea, 31 parts of sodium hydroxide, 15 parts of hydrogen peroxide, 260 parts of deionized water, 50 parts of ethanol, 29 parts of zinc nitrate, 29 parts of silver nitrate, 14 parts of a dispersing agent, 27 parts of talcum powder, 12 parts of calcium hydroxide and 29 parts of mica powder.
The preparation method of the mildew-proof nano coating with antibacterial performance comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
The stirring speed in the step a is 150 r/min.
The mass concentration of the hydrogen peroxide in the step a is 30 percent.
The temperature of the oven in step b was 120 ℃.
The muffle furnace temperature in step d was 500 ℃.
The stirring speed in step e is 270 r/min.
Example 3:
the mildew-proof nano coating with antibacterial performance comprises the following components in parts by weight: 52 parts of titanium powder, 26 parts of ammonium sulfate, 16 parts of ammonium chloride, 21 parts of urea, 28 parts of sodium hydroxide, 12 parts of hydrogen peroxide, 200 parts of deionized water, 70 parts of ethanol, 21 parts of zinc nitrate, 21 parts of silver nitrate, 32 parts of a dispersing agent, 23 parts of talcum powder, 24 parts of calcium hydroxide and 33 parts of mica powder.
The preparation method of the mildew-proof nano coating with antibacterial performance comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
The stirring speed in the step a is 150 r/min.
The mass concentration of the hydrogen peroxide in the step a is 30 percent.
The temperature of the oven in step b was 120 ℃.
The muffle furnace temperature in step d was 500 ℃.
The stirring speed in step e is 270 r/min.
Example 4:
the mildew-proof nano coating with antibacterial performance comprises the following components in parts by weight: 65 parts of titanium powder, 22 parts of ammonium sulfate, 27 parts of ammonium chloride, 29 parts of urea, 35 parts of sodium hydroxide, 17 parts of hydrogen peroxide, 300 parts of deionized water, 64 parts of ethanol, 34 parts of zinc nitrate, 37 parts of silver nitrate, 26 parts of a dispersing agent, 31 parts of talcum powder, 20 parts of calcium hydroxide and 26 parts of mica powder.
The preparation method of the mildew-proof nano coating with antibacterial performance comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
The stirring speed in the step a is 150 r/min.
The mass concentration of the hydrogen peroxide in the step a is 30 percent.
The temperature of the oven in step b was 120 ℃.
The muffle furnace temperature in step d was 500 ℃.
The stirring speed in step e is 270 r/min.
According to tests, the bacterium inhibition rate of the bacterium culturing box in the example 3 is 95.4% after the bacterium culturing box is cultured for 16 hours.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The mildew-proof nano coating with antibacterial performance is characterized by comprising the following components in parts by weight: 45-65 parts of titanium powder, 14-26 parts of ammonium sulfate, 11-27 parts of ammonium chloride, 17-29 parts of urea, 25-35 parts of sodium hydroxide, 9-17 parts of hydrogen peroxide, 300 parts of deionized water 200-containing materials, 50-70 parts of ethanol, 21-34 parts of zinc nitrate, 13-37 parts of silver nitrate, 14-32 parts of dispersing agent, 19-31 parts of talcum powder, 12-24 parts of calcium hydroxide and 23-33 parts of mica powder.
2. The mold-proof nano paint with antibacterial property as claimed in claim 1, wherein the preparation method comprises the following steps:
a. adding titanium powder and sodium hydroxide into a glass beaker, adding deionized water, ammonium sulfate, ammonium chloride and urea, putting the beaker into an ultrasonic cleaning machine for ultrasonic treatment, adding hydrogen peroxide, and magnetically stirring to obtain a mixed component A;
b. transferring the mixed component A into a reaction kettle, putting the reaction kettle into an oven for hydrothermal reaction for 2 hours, and naturally cooling to room temperature to obtain a mixed component B;
c. b, washing the mixed component B in the step B with dilute hydrochloric acid for 5 times, deionized water for 3 times and ethanol for 3 times, and then placing the mixed component B in a vacuum drying oven for drying overnight;
d. c, placing the product obtained in the step C in a crucible, then placing the crucible in a muffle furnace, and calcining for 2 hours to obtain solid powder C;
e. and adding the solid powder C, the dispersing agent, the talcum powder, the calcium hydroxide and the mica powder into a stirrer, and uniformly stirring to obtain the final coating.
3. The method for preparing the mildew-proof nano paint with antibacterial performance according to claim 2, characterized in that: the stirring speed in the step a is 150 r/min.
4. The method for preparing the mildew-proof nano paint with antibacterial performance according to claim 2, characterized in that: the mass concentration of the hydrogen peroxide in the step a is 30%.
5. The method for preparing the mildew-proof nano paint with antibacterial performance according to claim 2, characterized in that: the temperature of the oven in the step b is 120 ℃.
6. The method for preparing the mildew-proof nano paint with antibacterial performance according to claim 2, characterized in that: the temperature of the muffle furnace in the step d is 500 ℃.
7. The method for preparing the mildew-proof nano paint with antibacterial performance according to claim 2, characterized in that: the stirring speed in the step e is 270 r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911211230.1A CN110922792A (en) | 2019-12-02 | 2019-12-02 | Mildew-proof nano coating with antibacterial property |
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| CN201911211230.1A CN110922792A (en) | 2019-12-02 | 2019-12-02 | Mildew-proof nano coating with antibacterial property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108824A1 (en) * | 2021-12-15 | 2023-06-22 | 梁显庭 | Nano photocatalytic marine antifouling and anticorrosive coating and preparation method therefor |
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| CN108043380A (en) * | 2017-12-14 | 2018-05-18 | 安徽喜尔奇日用品有限公司 | A kind of high composite nano materials of dyestuff degradation property |
| WO2018165874A1 (en) * | 2017-03-14 | 2018-09-20 | 苏州大学张家港工业技术研究院 | Multifunctional composite coating for removing formaldehyde and undesirable odors and preventing bacteria and mildew, and preparation method therefor |
| CN110180020A (en) * | 2019-05-29 | 2019-08-30 | 中国科学院上海硅酸盐研究所 | A kind of N doping titanium oxide coating and its preparation method and application |
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- 2019-12-02 CN CN201911211230.1A patent/CN110922792A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018165874A1 (en) * | 2017-03-14 | 2018-09-20 | 苏州大学张家港工业技术研究院 | Multifunctional composite coating for removing formaldehyde and undesirable odors and preventing bacteria and mildew, and preparation method therefor |
| CN108043380A (en) * | 2017-12-14 | 2018-05-18 | 安徽喜尔奇日用品有限公司 | A kind of high composite nano materials of dyestuff degradation property |
| CN110180020A (en) * | 2019-05-29 | 2019-08-30 | 中国科学院上海硅酸盐研究所 | A kind of N doping titanium oxide coating and its preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023108824A1 (en) * | 2021-12-15 | 2023-06-22 | 梁显庭 | Nano photocatalytic marine antifouling and anticorrosive coating and preparation method therefor |
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Application publication date: 20200327 |