CN113214712A - Indoor latex paint with strong stain resistance and scrubbing capacity and preparation method thereof - Google Patents
Indoor latex paint with strong stain resistance and scrubbing capacity and preparation method thereof Download PDFInfo
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- CN113214712A CN113214712A CN202110401814.6A CN202110401814A CN113214712A CN 113214712 A CN113214712 A CN 113214712A CN 202110401814 A CN202110401814 A CN 202110401814A CN 113214712 A CN113214712 A CN 113214712A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of 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
- C09D5/024—Emulsion paints including aerosols characterised by the additives
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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
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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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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Abstract
The invention discloses an indoor latex paint with strong stain resistance and scrubbing performance and a preparation method thereof, wherein a mixture of protein-coated nano iron oxide, nano titanium dioxide, graphene and anion powder is subjected to foaming treatment to prepare a self-made pigment filler; the two nano materials with different particle sizes have different scattering and reflection effects on light, can generate color change effects different with incident light angles, and can release negative ions; the resonance of the graphene can also accelerate the release of negative ions; carrying out graft modification on polyvinyl alcohol and maleic anhydride, reacting chitosan in a neutral medium to generate Schiff base, and adding epichlorohydrin and a small amount of nano silicon dioxide into a mixture of the modified polyvinyl alcohol and the chitosan to prepare a self-made film-forming agent; the hydrophilicity of the polyvinyl alcohol is increased, the water absorption of the polyvinyl alcohol is reduced, and more negative ions are released; after epichlorohydrin and nano silicon dioxide are added, the pigment and filler are more firmly locked in the latex paint.
Description
Technical Field
The invention relates to the field of new materials, in particular to indoor latex paint with strong stain resistance and scrubbing capability and a preparation method thereof.
Background
Compared with solvent-based coatings, the latex paint has the advantages of health, environmental protection, convenient construction and the like, but the rheological property of the latex paint is inferior to that of the solvent-based coatings, for example, the phenomena of layering, caking and the like often occur when a tank is opened, splashing, sagging and the like easily occur during construction, and the storage, construction and film forming quality of the latex paint are seriously influenced. In order to improve the rheological property of the latex paint, a certain amount of rheological additive is required to be added. The thickening agent is a common rheological additive in the coating, plays a role in controlling the rheological property of the emulsion paint, and can thicken the emulsion paint and endow the emulsion paint with excellent mechanical property and stable physicochemical property, such as improvement on thixotropy, sagging resistance, storage stability and the like. With the improvement of living standard and the enhancement of environmental awareness, people pay more attention to indoor latex paint on health and environmental protection, so that indoor paint products with excellent performance, powerful functions, safety and environmental protection become the mainstream of the market.
The latex paint used in children's rooms should pay attention to health. Therefore, the research and preparation of the indoor latex paint which can release negative ions and generate color change, has strong pollution resistance and can be scrubbed is very promising in development. The children health is improved, and the children health is interesting. Therefore, the preparation of the indoor latex paint with strong pollution resistance and scrubbing property is very necessary.
Disclosure of Invention
The invention aims to provide indoor latex paint with strong stain resistance and scrubbing capability, so as to solve the problems in the background technology.
In order to solve the above technical problem, a first aspect of the present invention provides the following technical solutions: the indoor latex paint with strong stain resistance and scrubbing capability is characterized by comprising the following raw materials in parts by weight:
20-40 parts of acrylic emulsion, 10-25 parts of ammonia water, 2-4 parts of nano iron oxide, 2-4 parts of nano titanium dioxide, 2-4 parts of graphene, 4-8 parts of anion powder, 15-30 parts of protein, 4-8 parts of polyvinyl alcohol, 6-14 parts of maleic anhydride, 4-8 parts of chitosan, 5-7 parts of epoxy chloropropane, 2-4 parts of nano silicon dioxide, 5-10 parts of self-made pigment and filler and 4-8 parts of self-made film forming agent.
Preferably, the self-made pigment filler is prepared by foaming a mixture of protein-coated nano iron oxide, nano titanium dioxide, graphene and anion powder.
Preferably, the self-made film forming agent is prepared by graft modification of polyvinyl alcohol and maleic anhydride, reaction of chitosan in a neutral medium to generate Schiff base, and addition of epichlorohydrin and a small amount of nano-silica into the modified mixture of polyvinyl alcohol and chitosan.
Preferably, the particle size of the nano iron oxide is 80-100 nm, the particle size of the nano titanium dioxide is 60-80 nm, and the particle size of the nano silicon dioxide is 40-60 nm.
The second aspect of the present invention provides: a preparation method of indoor latex paint with strong stain resistance and scrubbing capability is characterized by comprising the following steps:
the process flow is as follows:
preparing a self-made pigment filler, preparing a self-made film forming agent and preparing emulsion paint.
Preferably, the method comprises the following specific steps:
(1) grinding the nano iron oxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano iron oxide with the granularity of 80-100 nm after grinding;
(2) grinding the nano titanium dioxide in a ceramic ball mill for 5-8 h, and sieving and retaining the nano titanium dioxide with the granularity of 60-80 nm;
(3) grinding the nano silicon dioxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano silicon dioxide with the granularity of 40-60 nm after grinding;
(4) mixing nano iron oxide, nano titanium dioxide, graphene and anion powder in proportion, adding the mixture into a 60-80% protein aqueous solution, and mechanically stirring at the rotating speed of 800-1000 r/min for 0.5-1 h to prepare a self-made pigment filler;
(5) adding polyvinyl alcohol into dimethyl sulfoxide, stirring in a constant-temperature water bath at 70-90 ℃, dissolving to obtain a polyvinyl alcohol solution, cooling to 30-70 ℃ and keeping the temperature constant for later use, dissolving maleic anhydride into dimethyl sulfoxide to obtain a maleic anhydride solution, dropwise adding the obtained maleic anhydride solution into the constant-temperature spare polyvinyl alcohol solution, continuing reacting at the constant temperature for 2-5 hours after dropwise adding is finished, purifying and washing the reaction mixture by using a mixed solution of ethyl acetate and absolute ethyl alcohol, filtering, and naturally drying a filter cake to obtain maleic anhydride grafted polyvinyl alcohol;
(6) dispersing chitosan in methanol, swelling for 1h at room temperature, transferring to a 250mL three-neck flask, placing in an ultrasonic cleaner, starting ultrasonic to the synthesis temperature, slowly dripping a corresponding amount of cinnamaldehyde dissolved in absolute ethyl alcohol under constant pressure, reacting for 2-5 h, and after the reaction is finished, carrying out suction filtration and washing on the obtained product to obtain a yellow powdery solid product. Extracting with anhydrous ethanol under reflux in Soxhlet extractor for 12h, and vacuum drying at 50 deg.C to obtain chitosan cinnamaldehyde Schiff base;
(7) mixing maleic anhydride grafted polyvinyl alcohol and chitosan cinnamyl aldehyde Schiff base, uniformly stirring, adding epoxy chloropropane, and uniformly stirring for later use;
(8) and (3) adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, adding the self-made pigment filler, carrying out water bath at 80-100 ℃, stirring for 0.5-1 h, cooling to room temperature, adding the nano silicon dioxide, and continuously and uniformly stirring to obtain a finished product.
Preferably, in the step (1): in the step (4): the mass ratio of the nano iron oxide to the nano titanium dioxide to the graphene to the negative ion powder is 1: 1: 1: 2.
preferably, in the step (5): the volume ratio of the polyvinyl alcohol to the dimethyl sulfoxide is 1: 10-40; the volume ratio of the maleic anhydride to the dimethyl sulfoxide is 1: 2-4; the mass ratio of polyvinyl alcohol to maleic anhydride is 1: 1.5-2; the volume ratio of ethyl acetate to absolute ethyl alcohol is 1: 0.25 to 1.
Preferably, in the step (6): the volume ratio of chitosan to methanol is 1: 4; the mass ratio of the chitosan to the cinnamaldehyde is 1: 2; the ultrasonic power is 0.8kHz and 200W.
Preferably, in the step (9): acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4.
compared with the prior art, the invention has the following beneficial effects:
self-made pigment and filler are used; foaming a mixture of protein-coated nano iron oxide, nano titanium dioxide, graphene and anion powder to prepare a self-made pigment filler; when the pigment and filler are prepared by protein foaming, protein molecules form a layer of viscous film at a gas-liquid interface, nano iron oxide, nano titanium dioxide and anion powder are adsorbed at the inner side of the viscous film, and the two nano materials with different particle sizes have different scattering and reflection effects on light and can generate color-changing effects which are different along with the incident light angle; when the emulsion paint is brushed indoors, the nano-particles and the powder on the inner side can be firmly stuck on a wall by the adhesive film; during scrubbing, the nano particles are slowly pulled, and pores are generated around the nano particles, so that water vapor in the air can be in contact with the negative ion powder in the coating through the viscous film to release negative ions; the negative ion powder can also radiate far infrared rays, and when the temperature rises in the daytime, the graphene absorbs the far infrared rays to resonate with water in pores, so that the release of negative ions is accelerated; the self-made pigment and filler can gradually release negative ions along with scrubbing, is very beneficial to human bodies, can form different color changes along with the movement of the nano particles, and has interestingness.
A self-made film forming agent is used; carrying out graft modification on polyvinyl alcohol and maleic anhydride, reacting chitosan in a neutral medium to generate Schiff base, and adding epichlorohydrin and a small amount of nano silicon dioxide into a mixture of the modified polyvinyl alcohol and the chitosan to prepare a self-made film-forming agent; the grafted polyvinyl alcohol is highly carboxylated, so that the hydrophilicity of the polyvinyl alcohol is increased, the latex paint is easier to form a film, a large number of hydrogen bonds are formed between hydroxyl groups on a polyvinyl alcohol molecular chain and chitosan to form blending, the water resistance of the chitosan is improved, the latex paint is not abraded when being scrubbed, the moisture absorption of the latex paint is reduced, more water vapor in the air is in contact with negative ion powder in gaps, and more negative ions are released; the chitosan reacted in the neutral medium reserves amino, so that the capacity of the latex paint for adsorbing water vapor in the air is enhanced, and the release speed of negative ions is increased; after epichlorohydrin and nano silicon dioxide are added, a cross-linked network structure is formed with chitosan, so that the pigment and filler are embedded into the network structure, hydroxyl and unsaturated bonds on the surface of the silicon dioxide and the residual hydroxyl in the film-forming agent form hydrogen bonds, the cross-linked network structure is converted into a three-dimensional network structure, and the pigment and filler are more firmly locked in the latex paint; the added nano silicon dioxide, nano ferric oxide and nano titanium dioxide particles with different particle sizes enable the emulsion paint to have richer color change.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the 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.
The first aspect of the invention provides the following technical scheme: the indoor latex paint with strong stain resistance and scrubbing capability is characterized by comprising the following raw materials in parts by weight:
20-40 parts of acrylic emulsion, 10-25 parts of ammonia water, 2-4 parts of nano iron oxide, 2-4 parts of nano titanium dioxide, 2-4 parts of graphene, 4-8 parts of anion powder, 15-30 parts of protein, 4-8 parts of polyvinyl alcohol, 6-14 parts of maleic anhydride, 4-8 parts of chitosan, 5-7 parts of epoxy chloropropane, 2-4 parts of nano silicon dioxide, 5-10 parts of self-made pigment and filler and 4-8 parts of self-made film forming agent.
Preferably, the self-made pigment filler is prepared by foaming a mixture of protein-coated nano iron oxide, nano titanium dioxide, graphene and anion powder.
Preferably, the self-made film forming agent is prepared by graft modification of polyvinyl alcohol and maleic anhydride, reaction of chitosan in a neutral medium to generate Schiff base, and addition of epichlorohydrin and a small amount of nano-silica into the modified mixture of polyvinyl alcohol and chitosan.
Preferably, the particle size of the nano iron oxide is 80-100 nm, the particle size of the nano titanium dioxide is 60-80 nm, and the particle size of the nano silicon dioxide is 40-60 nm.
The second aspect of the present invention provides: a preparation method of indoor latex paint with strong stain resistance and scrubbing capability is characterized by comprising the following steps:
the process flow is as follows:
preparing a self-made pigment filler, preparing a self-made film forming agent and preparing emulsion paint.
Preferably, the method comprises the following specific steps:
(1) grinding the nano iron oxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano iron oxide with the granularity of 80-100 nm after grinding;
(2) grinding the nano titanium dioxide in a ceramic ball mill for 5-8 h, and sieving and retaining the nano titanium dioxide with the granularity of 60-80 nm;
(3) grinding the nano silicon dioxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano silicon dioxide with the granularity of 40-60 nm after grinding;
(4) mixing nano iron oxide, nano titanium dioxide, graphene and anion powder in proportion, adding the mixture into a 60-80% protein aqueous solution, and mechanically stirring at the rotating speed of 800-1000 r/min for 0.5-1 h to prepare a self-made pigment filler;
(5) adding polyvinyl alcohol into dimethyl sulfoxide, stirring in a constant-temperature water bath at 70-90 ℃, dissolving to obtain a polyvinyl alcohol solution, cooling to 30-70 ℃ and keeping the temperature constant for later use, dissolving maleic anhydride into dimethyl sulfoxide to obtain a maleic anhydride solution, dropwise adding the obtained maleic anhydride solution into the constant-temperature spare polyvinyl alcohol solution, continuing reacting at the constant temperature for 2-5 hours after dropwise adding is finished, purifying and washing the reaction mixture by using a mixed solution of ethyl acetate and absolute ethyl alcohol, filtering, and naturally drying a filter cake to obtain maleic anhydride grafted polyvinyl alcohol;
(6) dispersing chitosan in methanol, swelling for 1h at room temperature, transferring to a 250mL three-neck flask, placing in an ultrasonic cleaner, starting ultrasonic to the synthesis temperature, slowly dripping a corresponding amount of cinnamaldehyde dissolved in absolute ethyl alcohol under constant pressure, reacting for 2-5 h, and after the reaction is finished, carrying out suction filtration and washing on the obtained product to obtain a yellow powdery solid product. Extracting with anhydrous ethanol under reflux in Soxhlet extractor for 12h, and vacuum drying at 50 deg.C to obtain chitosan cinnamaldehyde Schiff base;
(7) mixing maleic anhydride grafted polyvinyl alcohol and chitosan cinnamyl aldehyde Schiff base, uniformly stirring, adding epoxy chloropropane, and uniformly stirring for later use;
(8) and (3) adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, adding the self-made pigment filler, carrying out water bath at 80-100 ℃, stirring for 0.5-1 h, cooling to room temperature, adding the nano silicon dioxide, and continuously and uniformly stirring to obtain a finished product.
Preferably, in the step (1): in the step (4): the mass ratio of the nano iron oxide to the nano titanium dioxide to the graphene to the negative ion powder is 1: 1: 1: 2.
preferably, in the step (5): the volume ratio of the polyvinyl alcohol to the dimethyl sulfoxide is 1: 10-40; the volume ratio of the maleic anhydride to the dimethyl sulfoxide is 1: 2-4; the mass ratio of polyvinyl alcohol to maleic anhydride is 1: 1.5-2; the volume ratio of ethyl acetate to absolute ethyl alcohol is 1: 0.25 to 1.
Preferably, in the step (6): the volume ratio of chitosan to methanol is 1: 4; the mass ratio of the chitosan to the cinnamaldehyde is 1: 2; the ultrasonic power is 0.8kHz and 200W.
Preferably, in the step (9): acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4.
example 1: indoor latex paint I with strong stain resistance and capable of being scrubbed:
the indoor latex paint with strong stain resistance and scrubbing performance comprises the following components in parts by weight:
the weight fraction of the acrylic emulsion is 20 parts, the weight fraction of ammonia water is 10 parts, the weight fraction of nano iron oxide is 2 parts, the weight fraction of nano titanium dioxide is 2 parts, the weight fraction of graphene is 2 parts, the weight fraction of anion powder is 4 parts, the weight fraction of protein is 15 parts, the weight fraction of polyvinyl alcohol is 4 parts, the weight fraction of maleic anhydride is 6 parts, the weight fraction of chitosan is 4 parts, the weight fraction of epoxy chloropropane is 5 parts, the weight fraction of nano silicon dioxide is 2 parts, the weight fraction of self-made pigment and filler is 5 parts, and the weight fraction of self-made film-forming agent is 4 parts.
The preparation method of the emulsion paint comprises the following steps:
(1) grinding the nano iron oxide in a ceramic ball mill for 5 hours, and sieving and retaining the nano iron oxide with the granularity of 80-100 nm after grinding;
(2) grinding the nano titanium dioxide in a ceramic ball mill for 5 hours, and sieving and retaining the nano titanium dioxide with the granularity of 60-80 nm after grinding;
(3) grinding the nano silicon dioxide in a ceramic ball mill for 5 hours, and screening and retaining the nano silicon dioxide with the granularity of 40-60 nm after grinding;
(4) mixing nano iron oxide, nano titanium dioxide, graphene and anion powder according to a mass ratio of 1: 1: 1: 2, adding the mixture into a 60% protein aqueous solution, and mechanically stirring at the rotating speed of 800r/min for 0.5h to prepare the self-made pigment filler;
(5) adding 4 parts by weight of polyvinyl alcohol into 50 parts of dimethyl sulfoxide, stirring in a constant-temperature water bath at 70 ℃, dissolving to obtain a polyvinyl alcohol solution, cooling to 30 ℃ and keeping the temperature constant for later use, dissolving 6 parts by weight of maleic anhydride into 15 parts of dimethyl sulfoxide to obtain a maleic anhydride solution, dropwise adding the obtained maleic anhydride solution into the constant-temperature spare polyvinyl alcohol solution, continuing to perform constant-temperature reaction for 2 hours after dropwise adding is finished, purifying and washing a reaction mixture by using a mixed solution of ethyl acetate and absolute ethyl alcohol, filtering, wherein the volume ratio of ethyl acetate to absolute ethyl alcohol is 1: 0.5, naturally drying the filter cake to obtain maleic anhydride grafted polyvinyl alcohol;
(6) dispersing 4 parts by weight of chitosan in 16 parts by weight of methanol, swelling for 1h at room temperature, transferring to a 250mL three-neck flask, placing in an ultrasonic cleaner, starting ultrasonic power at 0.8kHz and 200W to a synthesis temperature, slowly dripping 8 parts by weight of cinnamaldehyde dissolved in absolute ethyl alcohol under constant pressure, reacting for 2h, and after the reaction is finished, carrying out suction filtration and washing on the obtained product to obtain a yellow powdery solid product. Extracting with anhydrous ethanol under reflux in Soxhlet extractor for 12h, and vacuum drying at 50 deg.C to obtain chitosan cinnamaldehyde Schiff base;
(7) mixing maleic anhydride grafted polyvinyl alcohol and chitosan cinnamyl aldehyde Schiff base, uniformly stirring, adding epoxy chloropropane, and uniformly stirring for later use;
(8) adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, and adding a self-made pigment filler, wherein the acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4, water bath at 80 ℃, stirring for 0.5h, cooling to room temperature, adding the nano silicon dioxide, and continuously stirring uniformly to obtain a finished product.
Example 2: indoor latex paint with strong stain resistance and scrubbing capacity:
the indoor latex paint with strong stain resistance and scrubbing performance comprises the following components in parts by weight:
the weight fraction of the acrylic emulsion is 40 parts, the weight fraction of ammonia water is 20 parts, the weight fraction of nano iron oxide is 4 parts, the weight fraction of nano titanium dioxide is 4 parts, the weight fraction of graphene is 4 parts, the weight fraction of anion powder is 8 parts, the weight fraction of protein is 30 parts, the weight fraction of polyvinyl alcohol is 8 parts, the weight fraction of maleic anhydride is 14 parts, the weight fraction of chitosan is 8 parts, the weight fraction of epoxy chloropropane is 7 parts, the weight fraction of nano silicon dioxide is 4 parts, the weight fraction of self-made pigment and filler is 10 parts, and the weight fraction of self-made film former is 8 parts.
The preparation method of the emulsion paint comprises the following steps:
(1) grinding the nano iron oxide in a ceramic ball mill for 8 hours, and screening and retaining the nano iron oxide with the granularity of 80-100 nm after grinding;
(2) grinding the nano titanium dioxide in a ceramic ball mill for 8 hours, and sieving and retaining the nano titanium dioxide with the granularity of 60-80 nm after grinding;
(3) grinding the nano silicon dioxide in a ceramic ball mill for 8 hours, and screening and retaining the nano silicon dioxide with the granularity of 40-60 nm after grinding;
(4) mixing nano iron oxide, nano titanium dioxide, graphene and anion powder according to a mass ratio of 1: 1: 1: 2, mixing, adding the mixture into 80% protein aqueous solution, and mechanically stirring at the rotating speed of 800r/min for 1h to prepare the self-made pigment and filler;
(5) adding 8 parts by weight of polyvinyl alcohol into 120 parts of dimethyl sulfoxide, stirring in a constant-temperature water bath at 70 ℃, dissolving to obtain a polyvinyl alcohol solution, cooling to 50 ℃ and keeping the temperature constant for later use, dissolving 12 parts by weight of maleic anhydride into 30 parts of dimethyl sulfoxide to obtain a maleic anhydride solution, dropwise adding the obtained maleic anhydride solution into the constant-temperature spare polyvinyl alcohol solution, continuing to perform constant-temperature reaction for 5 hours after dropwise adding is finished, purifying and washing a reaction mixture by using a mixed solution of ethyl acetate and absolute ethyl alcohol, filtering, wherein the volume ratio of ethyl acetate to absolute ethyl alcohol is 1: 0.8, naturally drying the filter cake to obtain maleic anhydride grafted polyvinyl alcohol;
(6) dispersing 8 parts by weight of chitosan in 32 parts by weight of methanol, swelling for 1h at room temperature, transferring to a 250mL three-neck flask, placing in an ultrasonic cleaner, starting ultrasonic power at 0.8kHz and 200W to a synthesis temperature, slowly dripping 16 parts by weight of cinnamaldehyde dissolved in absolute ethyl alcohol under constant pressure, reacting for 2h, and after the reaction is finished, carrying out suction filtration and washing on the obtained product to obtain a yellow powdery solid product. Extracting with anhydrous ethanol under reflux in Soxhlet extractor for 12h, and vacuum drying at 50 deg.C to obtain chitosan cinnamaldehyde Schiff base;
(7) mixing maleic anhydride grafted polyvinyl alcohol and chitosan cinnamyl aldehyde Schiff base, uniformly stirring, adding epoxy chloropropane, and uniformly stirring for later use;
(8) adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, and adding a self-made pigment filler, wherein the acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4, stirring for 1h in water bath at 90 ℃, cooling to room temperature, adding the nano silicon dioxide, and continuously stirring uniformly to obtain a finished product.
Comparative example 1
The formulation of comparative example 1 was the same as example 1. The preparation method of the skin-care moisturizing fabric is different from that of example 1 only in the step (4), and the step (4) is modified as follows: mixing nano iron oxide, nano titanium dioxide and graphene according to a mass ratio of 1: 1: 1, adding the mixture into 80% protein water solution, and mechanically stirring at the rotating speed of 800r/min for 1h to prepare the self-made pigment and filler. Modifying the step (8) to be: adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, adding a self-made pigment filler, and adding a negative ion powder, wherein the mass ratio of the negative ion powder to the graphene is 2: 1, acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4, water bath at 80 ℃, stirring for 0.5h, cooling to room temperature, adding the nano silicon dioxide, and continuously stirring uniformly to obtain a finished product, wherein the other preparation steps are the same as those of the example 1.
Comparative example 2
Comparative example 2 was formulated as in example 1. The preparation method of the skin-care moisturizing fabric is different from that of example 1 only in that the treatment of the steps (5) and (6) is not carried out, and the step (7) is modified as follows: uniformly mixing 4 parts by weight of polyvinyl alcohol and 4 parts by weight of chitosan, adding 5 parts by weight of epichlorohydrin, and uniformly stirring for later use. The rest of the preparation steps are the same as example 1.
Test example 1
1. Test method
Example 1 and comparative example 1 are control tests, and the latex paint is brushed in the same closed environment for 3h to carry out negative ion concentration test for comparison.
2. Test results
Example 1 was compared to comparative example 1 for its ability to release negative ions.
TABLE 1 anion concentration
By comparing the concentration of the negative ions released by the latex paint prepared in the embodiment 1 with that released by the latex paint prepared in the comparative example 1, the concentration of the negative ions released by the latex paint prepared in the embodiment 1 in the same time is higher, which shows that the latex paint can release more and faster negative ions in fat by using the self-made pigment and filler, and is more beneficial to the health of children, and indicates that the indoor latex paint with strong stain resistance and scrubbing property, prepared by the invention, has the capability of quickly releasing the negative ions.
Test example 2
1. Test method
Example 1 and comparative example 2 are comparative tests in which latex paint was applied in the same closed environment, negative ion concentration was measured for 3 hours, color change was observed by applying ultraviolet irradiation and performing scrubbing 10 times, and comparison was performed.
2. Test results
Comparison of anion releasing ability of example 1 and comparative example 2
TABLE 2 anion concentration
By comparing the concentrations of the negative ions released by the latex paint prepared in the embodiment 1 and the latex paint prepared in the comparative example 2, the concentration of the negative ions released in the same time period can be obviously found, and the color change can be obviously compared after the latex paint is scrubbed, the color change of the latex paint prepared in the embodiment 1 is obvious after the latex paint is scrubbed under ultraviolet irradiation, but the color change of the latex paint prepared in the comparative example 2 is obvious before the latex paint is scrubbed and is not obvious after the latex paint is scrubbed, which shows that the color change is not obvious after the nanoparticles are scrubbed, and indicates that the indoor latex paint with strong stain resistance and capable of being scrubbed has the capability of releasing the negative ions, and the color change is obvious and is resistant to scrubbing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The indoor latex paint with strong stain resistance and scrubbing capability is characterized by comprising the following raw materials in parts by weight: 20-40 parts of acrylic emulsion, 10-25 parts of ammonia water, 2-4 parts of nano iron oxide, 2-4 parts of nano titanium dioxide, 2-4 parts of graphene, 4-8 parts of anion powder, 15-30 parts of protein, 4-8 parts of polyvinyl alcohol, 6-14 parts of maleic anhydride, 4-8 parts of chitosan, 5-7 parts of epoxy chloropropane, 2-4 parts of nano silicon dioxide, 5-10 parts of self-made pigment and filler and 4-8 parts of self-made film forming agent.
2. The indoor latex paint with high stain resistance and scrubbing resistance of claim 1, which is characterized in that: the self-made pigment filler is prepared by foaming a mixture of protein-coated nano iron oxide, nano titanium dioxide, graphene and anion powder.
3. The indoor latex paint with high stain resistance and scrubbing resistance of claim 1, which is characterized in that: the self-made film forming agent is prepared by graft modification of polyvinyl alcohol and maleic anhydride, reaction of chitosan in a neutral medium to generate Schiff base, and addition of epichlorohydrin and a small amount of nano silicon dioxide to the modified mixture of polyvinyl alcohol and chitosan.
4. The indoor latex paint with high stain resistance and scrubbing resistance of claim 1, which is characterized in that: the particle size of the nano iron oxide is 80-100 nm, the particle size of the nano titanium dioxide is 60-80 nm, and the particle size of the nano silicon dioxide is 40-60 nm.
5. A preparation method of indoor latex paint with strong stain resistance and scrubbing capability is characterized in that the process flow for preparing the indoor latex paint with strong stain resistance and scrubbing capability is as follows: preparing a self-made pigment filler, preparing a self-made film forming agent and preparing emulsion paint.
6. The preparation method of indoor latex paint with strong stain resistance and scrubbing capacity as claimed in claim 5, characterized by comprising the following steps:
(1) grinding the nano iron oxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano iron oxide with the granularity of 80-100 nm after grinding;
(2) grinding the nano titanium dioxide in a ceramic ball mill for 5-8 h, and sieving and retaining the nano titanium dioxide with the granularity of 60-80 nm;
(3) grinding the nano silicon dioxide in a ceramic ball mill for 5-8 h, and screening and retaining the nano silicon dioxide with the granularity of 40-60 nm after grinding;
(4) mixing nano iron oxide, nano titanium dioxide, graphene and anion powder in proportion, adding the mixture into a 60-80% protein aqueous solution, and mechanically stirring at the rotating speed of 800-1000 r/min for 0.5-1 h to prepare a self-made pigment filler;
(5) adding polyvinyl alcohol into dimethyl sulfoxide, stirring in a constant-temperature water bath at 70-90 ℃, dissolving to obtain a polyvinyl alcohol solution, cooling to 30-70 ℃ and keeping the temperature constant for later use, dissolving maleic anhydride into dimethyl sulfoxide to obtain a maleic anhydride solution, dropwise adding the obtained maleic anhydride solution into the constant-temperature spare polyvinyl alcohol solution, continuing reacting at the constant temperature for 2-5 hours after dropwise adding is finished, purifying and washing the reaction mixture by using a mixed solution of ethyl acetate and absolute ethyl alcohol, filtering, and naturally drying a filter cake to obtain maleic anhydride grafted polyvinyl alcohol;
(6) dispersing chitosan in methanol, swelling for 1h at room temperature, transferring to a 250mL three-neck flask, placing in an ultrasonic cleaner, starting ultrasonic to the synthesis temperature, slowly dripping a corresponding amount of cinnamaldehyde dissolved in absolute ethyl alcohol under constant pressure, reacting for 2-5 h, and after the reaction is finished, carrying out suction filtration and washing on the obtained product to obtain a yellow powdery solid product. Extracting with anhydrous ethanol under reflux in Soxhlet extractor for 12h, and vacuum drying at 50 deg.C to obtain chitosan cinnamaldehyde Schiff base;
(7) uniformly mixing and stirring maleic anhydride grafted polyvinyl alcohol and chitosan cinnamyl aldehyde Schiff base, adding 5-7 parts by weight of epoxy chloropropane, and uniformly stirring for later use;
(8) and (3) adjusting the pH value of the acrylic emulsion to 7 by using ammonia water, adding the substance obtained in the step (7), uniformly stirring, adding the self-made pigment filler, carrying out water bath at 80-100 ℃, stirring for 0.5-1 h, cooling to room temperature, adding 2-4 parts by weight of nano silicon dioxide, and continuously and uniformly stirring to obtain a finished product.
7. The method for preparing a high-performance ceramic material with stronger electrical conductivity according to claim 6, wherein the method comprises the following steps: in the step (4): the mass ratio of the nano iron oxide to the nano titanium dioxide to the graphene to the negative ion powder is 1: 1: 1: 2.
8. the method for preparing indoor latex paint with high stain resistance and scrubbing capability according to claim 6, wherein in the step (5): the volume ratio of the polyvinyl alcohol to the dimethyl sulfoxide is 1: 10-40; the volume ratio of the maleic anhydride to the dimethyl sulfoxide is 1: 2-4; the mass ratio of polyvinyl alcohol to maleic anhydride is 1: 1.5-2; the volume ratio of ethyl acetate to absolute ethyl alcohol is 1: 0.25 to 1.
9. The method for preparing indoor latex paint with strong stain resistance and scrubbing capability according to claim 6, characterized in that in the step (6): the volume ratio of chitosan to methanol is 1: 4; the volume ratio of the chitosan to the cinnamaldehyde is 1: 2; the ultrasonic power is 0.8kHz and 200W.
10. The method for preparing indoor latex paint with high stain resistance and scrubbing capability according to claim 6, wherein in the step (9): acrylic emulsion: self-made pigment and filler: the mass ratio of the self-made film forming agent is 20: 5: 4.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505315A (en) * | 2022-10-08 | 2022-12-23 | 河南商都古建工程有限公司 | Mildew-proof termite-proof epoxy resin anticorrosive material and preparation method thereof |
| CN116285540A (en) * | 2023-02-15 | 2023-06-23 | 西卡德高(广州)企业管理有限公司 | Coating containing modified cross-linking agent and preparation method thereof |
| CN117562835A (en) * | 2024-01-17 | 2024-02-20 | 广州悦瑞化妆品有限公司 | Oil-containing bead essence and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535385A (en) * | 2006-11-13 | 2009-09-16 | 蒙诺苏尔有限公司 | Water-soluble film |
| CN104327621A (en) * | 2014-10-17 | 2015-02-04 | 青岛文晟汽车零部件有限公司 | Emulsion paint with antifouling function |
| CN105131672A (en) * | 2015-09-06 | 2015-12-09 | 天长市银狐漆业有限公司 | Scrubbing-resistant anti-microbial inner wall emulsion paint |
| CN105623403A (en) * | 2014-11-28 | 2016-06-01 | 青岛金智高新技术有限公司 | Fully-functional and environmentally-friendly interior wall emulsion paint |
| CN107384085A (en) * | 2017-09-09 | 2017-11-24 | 常州亚环环保科技有限公司 | A kind of preparation method of exterior wall latex paint |
| CN109423142A (en) * | 2017-07-13 | 2019-03-05 | 王国强 | Dedicated wall finiss of child room and preparation method thereof |
| US20200181439A1 (en) * | 2015-10-12 | 2020-06-11 | The University Of Massachusetts | Nanocellulose-based anti-fogging composition |
-
2021
- 2021-04-14 CN CN202110401814.6A patent/CN113214712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535385A (en) * | 2006-11-13 | 2009-09-16 | 蒙诺苏尔有限公司 | Water-soluble film |
| CN104327621A (en) * | 2014-10-17 | 2015-02-04 | 青岛文晟汽车零部件有限公司 | Emulsion paint with antifouling function |
| CN105623403A (en) * | 2014-11-28 | 2016-06-01 | 青岛金智高新技术有限公司 | Fully-functional and environmentally-friendly interior wall emulsion paint |
| CN105131672A (en) * | 2015-09-06 | 2015-12-09 | 天长市银狐漆业有限公司 | Scrubbing-resistant anti-microbial inner wall emulsion paint |
| US20200181439A1 (en) * | 2015-10-12 | 2020-06-11 | The University Of Massachusetts | Nanocellulose-based anti-fogging composition |
| CN109423142A (en) * | 2017-07-13 | 2019-03-05 | 王国强 | Dedicated wall finiss of child room and preparation method thereof |
| CN107384085A (en) * | 2017-09-09 | 2017-11-24 | 常州亚环环保科技有限公司 | A kind of preparation method of exterior wall latex paint |
Non-Patent Citations (1)
| Title |
|---|
| 强涛涛: "《合成革化学品》", 31 July 2016, 中国轻工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505315A (en) * | 2022-10-08 | 2022-12-23 | 河南商都古建工程有限公司 | Mildew-proof termite-proof epoxy resin anticorrosive material and preparation method thereof |
| CN116285540A (en) * | 2023-02-15 | 2023-06-23 | 西卡德高(广州)企业管理有限公司 | Coating containing modified cross-linking agent and preparation method thereof |
| CN116285540B (en) * | 2023-02-15 | 2024-03-01 | 西卡德高(广州)企业管理有限公司 | Coating containing modified cross-linking agent and preparation method thereof |
| CN117562835A (en) * | 2024-01-17 | 2024-02-20 | 广州悦瑞化妆品有限公司 | Oil-containing bead essence and preparation method thereof |
| CN117562835B (en) * | 2024-01-17 | 2024-03-22 | 广州悦瑞化妆品有限公司 | Oil-containing bead essence and preparation method thereof |
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