CN111560193A - Antibacterial and antiviral interior wall latex paint and preparation method thereof - Google Patents
Antibacterial and antiviral interior wall latex paint and preparation method thereof Download PDFInfo
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- CN111560193A CN111560193A CN202010524184.7A CN202010524184A CN111560193A CN 111560193 A CN111560193 A CN 111560193A CN 202010524184 A CN202010524184 A CN 202010524184A CN 111560193 A CN111560193 A CN 111560193A
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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
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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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
- C09D5/02—Emulsion paints including aerosols
- C09D5/022—Emulsions, e.g. oil in water
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to an antibacterial and antiviral emulsion paint which mainly comprises the following components in parts by weight: 13-20 parts of film forming material, 0.15-0.5 part of bactericide, 4-8 parts of nano bismuth tungstate, 35-45 parts of pigment and filler, 0.4-0.6 part of thickening agent, 0.05-0.2 part of pH regulator, 0.6-1 part of dispersing and wetting agent, 0.3-0.8 part of defoaming agent and 0.1-0.3 part of mildew preventive. The antibacterial and antiviral emulsion paint coating contains nano bismuth tungstate, has good photocatalytic capacity under indoor visible light conditions, has good formaldehyde degradation capacity, and has a certain inhibition effect on bacteria and viruses.
Description
Technical Field
The invention relates to the technical field of functional environment-friendly emulsion paints, in particular to an antibacterial and antiviral emulsion paint and a preparation method thereof.
Background
With the improvement of living standard of people, the demand and expectation of people for functional latex paint are higher and higher. The microbial infection and formaldehyde on the wall surface become two major sanitary problems which harm human health indoors. In terms of antimicrobial properties, paint developers have provided certain coatings with antimicrobial (primarily antimicrobial) properties by adding antimicrobial agents. Most organic antibacterial agents have the defects of poor heat resistance, easy volatilization, easy decomposition and generation of harmful substances and the like.
The silver ion bactericide is an inorganic antibacterial agent widely adopted in paints at present, overcomes the defects of organic bactericides, and has the defects of quick release, easy leaching and the like. The nano photocatalytic material has certain application in the field of paint due to the advantages of harmlessness, degradation and organic pollutant (such as aldehyde removal) and antibiosis, but most of the nano photocatalytic material has the defects of insufficient absorption to visible light, low catalytic efficiency and the like. Moreover, the existing sterilization system in the emulsion paint only has the functions of killing and inhibiting a few specific strains, and lacks of a full-functional antimicrobial coating which can really effectively resist bacteria and viruses. The preparation method aims to prepare the long-acting comprehensive antimicrobial (multi-strain and multi-virus type) emulsion paint by utilizing various antimicrobial materials and combining the existing emulsion paint synthesis technology, solve the problem of pain points lacking in the products in the prior industry and reduce the risk of wall and indoor microbial infection and disease.
Disclosure of Invention
The antibacterial and antiviral interior wall latex paint provided by the invention has stable performance and high environmental friendliness, not only has a bactericidal and antiviral effect, but also has the functions of removing aldehyde and the like.
An antibacterial antiviral emulsion paint mainly comprises the following components in parts by weight:
further, the film forming material is a modified styrene-acrylic emulsion with the film forming temperature of 0-10 ℃.
Further, the bactericide is a silver ion antibacterial agent.
Further, the nano bismuth tungstate is Bi modified by graphene2WO6A visible light photocatalytic material.
Furthermore, the pigment filler is prepared by mixing one or more than two of titanium dioxide, heavy calcium carbonate, diatomite, kaolin or talcum powder.
A preparation method of antibacterial and antiviral emulsion paint comprises the following steps,
firstly, adding water into a premixing dispersion tank, controlling the rotating speed at 800r/min, then adding the thickening agent, the PH regulator, the dispersing wetting agent, part of the defoaming agent and the silver ion bactericide, and stirring for 3-8 minutes;
secondly, adding nano bismuth tungstate, then increasing the rotating speed to 1400-1600r/min, stirring at 1400-1600r/min for 5-10min to form a uniform state, then adjusting the rotating speed to 600-800r/min, adding pigment and filler at the rotating speed of 600-800r/min, then increasing the rotating speed to 1400-1600r/min, stirring for 15-20min until all raw materials are dispersed to uniform slurry state and the fineness is less than 50um, and stopping stirring;
thirdly, transferring the product prepared in the second step into a paint mixing tank, regulating the speed to 800-1000r/min, adding the film forming substance, and stirring for 2-5 minutes;
and (IV) finally, sequentially adding the mildew preventive and the other part of the defoaming agent water at the stirring speed of 800-1000r/min, and stirring for 8-10min to obtain the mildew preventive.
Description of the principle:
the silver ion antibody of the inventionThe microbial inoculum is a high-efficiency bacterial inhibitor and has a certain antiviral function, however, in practical application, Ag+The paint film is easy to migrate and leach out, and the sterilization effect of the wall surface is lost. According to the invention, due to the addition of the graphene component, under the action of graphene adsorption, silver ions are combined with the graphene modified bismuth tungstate, and are tightly wrapped in a paint film, so that the paint film is not easy to leach out and lose efficacy by water or other solvents.
The nano bismuth tungstate can be a graphene modified Bi2MoO6 visible light photocatalytic material synthesized by a hydrothermal method. The graphene modified Bi2MoO6 visible light photocatalytic material synthesized by a hydrothermal method is simple in synthesis process, easy to obtain, low in cost and capable of well absorbing visible light. The huge specific surface area of the graphene can improve the adsorption capacity of the bismuth tungstate nanobelt and inhibit the recombination of photo-generated electrons and hole pairs in the nanobelt, so that a photocatalytic material with strong adsorption and high activity is obtained, and the sterilization and antiviral effects of the photocatalytic material are improved. Due to Ag in the bactericide+The bismuth tungstate/graphene composite material can provide a large number of electrons for a semiconductor material, plays a role of a bridge between the bismuth tungstate and the graphene, is convenient for the migration of electron holes, and promotes the photocatalytic capability.
Compared with the prior art, the invention has the following beneficial effects:
(1) the antibacterial and antiviral emulsion paint coating contains nano bismuth tungstate, has good photocatalytic capacity under indoor visible light conditions, has good formaldehyde degradation capacity, and has a certain inhibition effect on bacteria and viruses.
(2) The antibacterial and antiviral emulsion paint disclosed by the invention is also added with the silver ion bactericide, under the adsorption action of graphene, silver ions are tightly combined with a paint film after the paint film is dried, and are not easy to leach out and lose efficacy by water or other solvent substances, so that the silver ions can stay in the paint film for a longer time, and the antibacterial and antiviral durability of the antibacterial and antiviral emulsion paint is stronger.
(3) The bactericide contained in the antibacterial and antiviral emulsion paint disclosed by the invention and the nano-graphene modified bismuth tungstate play a good synergistic role, so that the effects of inhibiting and killing indoor wall bacteria and viruses and degrading organic pollutants such as formaldehyde, benzene and the like in the air are enhanced, and substances harmful to human health and environment are not generated.
(4) The product of the invention has the characteristics of low VOC and super clean flavor.
Detailed Description
The invention is further described below with reference to specific examples:
the auxiliary agent comprises one or more of thickening agent, dispersing wetting agent, defoaming agent, pH regulator and mildew preventive. The nano material is easy to coagulate and agglomerate due to small particle size, large surface energy and unstable energy, and loses the characteristics of nano particles. Therefore, special dispersing wetting agents are needed to enable the nano bismuth tungstate to be stably dispersed and exist in the latex paint. Preferably, the dispersing agent adopts SN5040 of Sennoprucaceae, and the wetting agent adopts NS22098 of Shenzhen Haizun chemical industry.
Example 1
An antibacterial antiviral emulsion paint comprises the following components in parts by weight:
a preparation method of antibacterial and antiviral emulsion paint comprises the following steps,
firstly, adding part of water into a premixing dispersion tank, controlling the rotating speed at 600r/min, then adding the thickening agent, the pH regulator, the dispersing wetting agent, part of the defoaming agent and the silver ion bactericide, and stirring for 3 minutes;
secondly, adding nano bismuth tungstate, then increasing the rotating speed to 1400r/min, stirring at 1400r/min for 5min to form a uniform state, then adjusting the rotating speed to 600r/min, adding pigment and filler at the rotating speed of 600r/min, then increasing the rotating speed to 1400r/min, stirring for 15min until all raw materials are dispersed to be uniform slurry and the fineness reaches the standard (<50um), and stopping stirring;
thirdly, transferring the product prepared in the second step into a paint mixing tank, regulating the speed to 800r/min, adding the film forming substance, and stirring for 8 minutes;
and (IV) finally, sequentially adding the mildew preventive, the other part of the defoaming agent and the rest of the water at the stirring speed of 800r/min, and stirring for 10min to obtain the mildew preventive.
Example 2
An antibacterial antiviral emulsion paint mainly comprises the following components in parts by weight:
a preparation method of antibacterial and antiviral emulsion paint comprises the following steps,
firstly, adding part of water into a premixing dispersion tank, controlling the rotating speed at 800r/min, then adding the thickening agent, the pH regulator, the dispersing wetting agent, part of the defoaming agent and the silver ion bactericide, and stirring for 3 minutes;
secondly, adding nano bismuth tungstate, then increasing the rotating speed to 1600r/min, stirring at 1600r/min for 5min to form a uniform state, then adjusting the rotating speed to 800r/min, adding pigment and filler at 800r/min, then increasing the rotating speed to 1600r/min, stirring for 20min until all raw materials are dispersed to be uniform slurry state and the fineness reaches the standard (<50um), and stopping stirring;
thirdly, transferring the product prepared in the second step into a paint mixing tank, regulating the speed to 1000r/min, adding the film forming substance, and stirring for 8 minutes;
and (IV) finally, sequentially adding the mildew preventive, the other part of the defoaming agent and the rest water at the stirring speed of 1000r/min, and stirring for 20min to obtain the mildew preventive.
Example 3
An antibacterial antiviral emulsion paint mainly comprises the following components in parts by weight:
a preparation method of antibacterial and antiviral emulsion paint comprises the following steps,
firstly, adding part of water into a premixing dispersion tank, controlling the rotating speed at 700r/min, then adding the thickening agent, the pH regulator, the dispersing wetting agent, part of the defoaming agent and the silver ion bactericide, and stirring for 3 minutes;
secondly, adding nano bismuth tungstate, increasing the rotating speed to 1500r/min, stirring at 1500r/min for 8min to form a uniform state, adjusting the rotating speed to 700r/min, adding pigment and filler at 700r/min, increasing the rotating speed to 1500r/min, stirring for 16min until all raw materials are dispersed to be uniform slurry and the fineness reaches less than 50um, and stopping stirring;
thirdly, transferring the product prepared in the second step into a paint mixing tank, regulating the speed to 900r/min, adding the film forming substance, and stirring for 10 minutes;
and (IV) finally, sequentially adding the mildew preventive, the other part of the defoaming agent and the rest water at the stirring speed of 900r/min, and stirring for 15min to obtain the mildew preventive.
The antibacterial and antiviral effects and the formaldehyde removal performance of the latex paints prepared in the embodiments 1 to 3 of the invention are respectively measured and calculated, and the test results are as follows:
according to HG/T3950-2007, an antibacterial test is carried out, 19 strains such as staphylococcus aureus, escherichia coli, pseudomonas, bacillus subtilis, proteus, streptococcus lactis and the like are selected during the antibacterial test, and the results are shown in the table above, and the killing rate is over 99.99%. According to the test of GB/T21866-2008 combined with disinfection regulations, two influenza viruses H3N2 and H1N1 are selected during the test, and the antiviral performance is more than 99.55 percent as shown in the table above. The aldehyde removal result is tested according to JC/T1074-2008, and the aldehyde removal performance is more than 81.03 percent and the aldehyde removal durability is 79.35 percent as shown in the table above.
The above examples preferably use the following raw materials from the manufacturer:
film-forming material: ba De Fu RS798
Titanium dioxide: python R-996
Heavy calcium: wide source chemical industry CC-800
Diatomite: showa RADIOLITE F
Talc powder: guangfu MS-1250
Thickening agent: yam 250HBR
pH regulators: dow AMP95
Dispersing agent: saint Roop family SN5040
Wetting agent: sea moistening chemical NS22098
Partial defoaming agent: kening 334
Mildew preventive: ZOE of Longsha
Defoaming agent: basff FoamStar ST 2410
Silver ion bactericide: dimei DM830
Nano bismuth tungstate: medium tungsten on-line technology
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the foregoing description only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims, specification, and equivalents thereof.
Claims (6)
1. An antibacterial and antiviral emulsion paint is characterized in that: the paint mainly comprises the following components in parts by weight:
2. the antibacterial and antiviral latex paint according to claim 1, wherein: the film forming material is a modified styrene-acrylic emulsion with the film forming temperature of 0-10 ℃.
3. The antibacterial and antiviral latex paint according to claim 1, wherein: the bactericide is a silver ion antibacterial agent.
4. The antibacterial and antiviral latex paint according to claim 1, wherein: the nano bismuth tungstate is Bi modified by graphene2WO6A visible light photocatalytic material.
5. The antibacterial and antiviral latex paint according to claim 1, wherein: the pigment filler is prepared by mixing one or more than two of titanium dioxide, coarse whiting, diatomite, kaolin or talcum powder.
6. The preparation method of the antibacterial and antiviral latex paint as claimed in any one of claims 1 to 5, wherein: comprises the following steps of (a) carrying out,
firstly, adding water into a premixing dispersion tank, controlling the rotating speed at 800r/min, then adding the thickening agent, the PH regulator, the dispersing wetting agent, part of the defoaming agent and the silver ion bactericide, and then stirring for 3-8 minutes;
secondly, adding nano bismuth tungstate, then increasing the rotating speed to 1400-1600r/min, stirring at 1400-1600r/min for 5-10min to form a uniform state, then adjusting the rotating speed to 600-800r/min, adding pigment and filler at the rotating speed of 600-800r/min, then increasing the rotating speed to 1400-1600r/min, stirring for 15-20min until all raw materials are dispersed to uniform slurry state and the fineness is less than 50um, and stopping stirring;
thirdly, transferring the product prepared in the second step into a paint mixing tank, adjusting the rotating speed to 800-1000r/min, then adding the film forming substance, and stirring for 2-5 minutes;
and (IV) finally, sequentially adding the mildew preventive and the residual defoaming agent water at the stirring speed of 800-1000r/min, and stirring for 8-10min to obtain the mildew preventive.
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| CN202010524184.7A CN111560193A (en) | 2020-06-10 | 2020-06-10 | Antibacterial and antiviral interior wall latex paint and preparation method thereof |
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Cited By (1)
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Application publication date: 20200821 |
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