CN111534176A - Emulsion paint capable of efficiently decomposing formaldehyde and preparation method thereof - Google Patents
Emulsion paint capable of efficiently decomposing formaldehyde and preparation method thereof Download PDFInfo
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- CN111534176A CN111534176A CN202010490319.2A CN202010490319A CN111534176A CN 111534176 A CN111534176 A CN 111534176A CN 202010490319 A CN202010490319 A CN 202010490319A CN 111534176 A CN111534176 A CN 111534176A
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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
- 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
- C09D5/025—Preservatives, e.g. antimicrobial agents
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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
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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Abstract
The invention discloses an emulsion paint capable of efficiently decomposing formaldehyde, which comprises the following raw materials in parts by weight: 700 parts of acrylic emulsion, 10-30 parts of defoaming agent, 10-20 parts of thickening agent, 10-40 parts of dispersing agent, 300 parts of filler 150, 300 parts of silicon dioxide and zinc oxide composite material 150, 300 parts of bamboo vinegar liquid 200, 0.5-2 parts of cellulose, 40-60 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50-70 parts of pigment and 250 parts of water 150. The latex paint prepared by the invention has extremely low odor and zero VOC content, and the latex paint can coordinate absorption and decomposition, quickly decompose formaldehyde and other harmful gases and purify air.
Description
Technical Field
The invention belongs to the technical field of emulsion paint preparation, and particularly relates to emulsion paint capable of efficiently decomposing formaldehyde and a preparation method thereof.
Background
With the improvement of living standard of people, people pay more and more attention to the influence of the own central environment and environment on the self health, and the problems of formaldehyde exceeding standard, volatile organic compounds exceeding standard and the like caused in the indoor decoration process also gradually become the focus of public attention. The health of people is directly influenced by the quality of indoor environment, and after indoor decoration, harmful substances such as residual formaldehyde, volatile organic compounds and the like in the air can cause diseases such as skin allergy, liver and kidney injury, respiratory tract infection and the like of people, and leukemia can be developed seriously.
Under the situation, higher requirements are provided for the coating with large indoor decoration use amount and large coverage area, the coating has the effects of protecting walls and beautifying the environment, and the pollution problem of formaldehyde and volatile organic compounds cannot be generated, but the latex paint prepared in the prior art has poor formaldehyde purification function and cannot efficiently decompose formaldehyde and other harmful organic volatile compounds.
Therefore, the problem that needs to be solved by the technical personnel in the field can be to provide the latex paint capable of efficiently decomposing formaldehyde.
Disclosure of Invention
In view of the above, the invention provides the latex paint capable of efficiently decomposing formaldehyde and the preparation method thereof, the latex paint prepared by the process has low odor, zero VOC content and zero free formaldehyde content, and a paint film can decompose formaldehyde, can quickly purify air and is suitable for indoor renovation and recoating.
In order to achieve the purpose, the invention adopts the following technical scheme:
the latex paint capable of efficiently decomposing formaldehyde comprises the following raw materials in parts by weight: 700 parts of acrylic emulsion, 10-30 parts of defoaming agent, 10-20 parts of thickening agent, 10-40 parts of dispersing agent, 300 parts of filler 150, 300 parts of silicon dioxide and zinc oxide composite material 150, 300 parts of bamboo vinegar liquid 200, 0.5-2 parts of cellulose, 40-60 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50-70 parts of pigment and 250 parts of water 150.
According to the invention, the silicon dioxide and zinc oxide composite material, bamboo vinegar and formaldehyde-removing traditional Chinese medicine extract are coordinated and matched with each other in the raw material formula, so that the synergistic effect is achieved, the adsorption of harmful gases such as formaldehyde is enhanced, the decomposition is carried out at the same time, the danger that the harmful gases are adsorbed by a single method in the traditional technology and released again after saturation is avoided, and the latex paint does not contain toxic raw materials, has high decomposition efficiency, and can effectively degrade toxic and harmful gases in the air.
Preferably, the feed comprises the following raw materials in parts by weight: 700 parts of acrylic emulsion 600-containing materials, 20-30 parts of defoaming agent, 10-15 parts of thickening agent, 10-30 parts of dispersing agent, 300 parts of filler 200-containing materials, 300 parts of silicon dioxide and zinc oxide composite materials, 300 parts of bamboo vinegar liquid, 1-2 parts of cellulose, 40-60 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 60-70 parts of pigment and 250 parts of water 150-containing materials.
Preferably, the feed comprises the following raw materials in parts by weight: 700 parts of acrylic emulsion, 20 parts of defoaming agent, 15 parts of thickening agent, 20 parts of dispersing agent, 200 parts of filler, 300 parts of silicon dioxide and zinc oxide composite material, 250 parts of bamboo vinegar, 2 parts of cellulose, 50 parts of formaldehyde-removing traditional Chinese medicine extract, 60 parts of pigment and 200 parts of water.
Preferably, the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 90-110 parts of bighead atractylodes rhizome, 90-110 parts of wrinkled gianthyssop herb, 60-80 parts of rhizoma atractylodis, 40-50 parts of coix seed and 10-30 parts of clove.
Preferably, the preparation method of the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following steps: weighing the raw materials according to the weight parts, putting the raw materials into pressure equipment, adding 4-6 times of water by weight, heating and extracting for 40-60min, and filtering to obtain the formaldehyde-removing traditional Chinese medicine extracting solution.
The formaldehyde-removing traditional Chinese medicine extracting solution obtained by the proportion and the preparation method is added into the latex paint, on one hand, formaldehyde can be removed, on the other hand, the latex paint can expel parasites and resist bacteria and has better resistance to mildew, and the traditional Chinese medicines in the prescription belong to externally-used (inedible) nontoxic medicinal materials in Chinese pharmacopoeia, so that the safety coefficient of the prescription is very high, the body cannot be injured, and the traditional Chinese medicine can be used safely.
The chemical components of the traditional Chinese medicine extract and the plant extract are complex, and active ingredients in the traditional Chinese medicine and the plant are subjected to physicochemical change in each processing procedure, so that the quality characteristics of sterilization, mildew removal, aldehyde removal, heavy metal removal, antibiosis and the like of the emulsion paint are formed. The quality of the latex paint is influenced and delicate by each formula component and processing procedure of the latex paint, and the components and the processing procedure are an integral process which is mutually involved and restricted, so that the formaldehyde removing effect of the latex paint is exerted to the utmost extent through interaction.
Preferably, the preparation method of the composite material of silicon dioxide and zinc oxide comprises the following steps: to the solution containing 0.1-0.2mol/LZn2+Salt of (meth) acrylic acidSlowly adding porous silicon dioxide into the solution, then slowly adding a precipitator, adjusting the pH value of the mixed solution to 8.0-8.5, then reacting at the constant temperature of 70-95 ℃ for 8-10h, filtering a product obtained by the reaction, collecting filter residues, drying the filter residues at the temperature of 80-90 ℃ for 8h, and then calcining at the temperature of 300-400 ℃ for 4h to obtain the silicon dioxide and zinc oxide composite material;
wherein the salt solution is one of a zinc nitrate solution, a zinc acetate solution and a zinc sulfate solution; the precipitant is sodium silicate solution with the concentration of 0.05-0.1 mol/L; the adding amount of the porous silicon dioxide is 10-15g of the porous silicon dioxide in every 100mL of the salt solution.
The silicon dioxide and zinc oxide composite material prepared by the method can effectively play a role in long-acting antibiosis, decomposition of harmful gases such as formaldehyde, toluene and the like and purification of indoor air, and is nontoxic, tasteless, safe and environment-friendly.
Preferably, the acrylic emulsion is PRIMAL SF-508 emulsion or styrene-acrylate emulsion.
According to the invention, the PRIMAL SF-508 emulsion is selected, the film forming temperature is 0-8 ℃, the structure of the PRIMAL SF-508 emulsion has an amino functional group, and the PRIMAL SF-508 emulsion can contact and react with formaldehyde in the air to reduce the formaldehyde content in the air, and meanwhile, the components have no possibility of formaldehyde existence, so that the PRIMAL SF-508 emulsion is green and environment-friendly; the components in the self formula are adjusted to replace an additional antifreeze agent such as ethylene glycol and the like, so that the solvent and VOC are reduced; the styrene-acrylate emulsion is selected, water is used as an external plasticizer, a film can be well formed without adding a film aid, the freeze-thaw resistance is excellent, an antifreezing agent is not required to be added, and free monomers are few.
Preferably, the defoaming agent is at least one of nano polysiloxane-dense copolymer emulsion, polypropylene glycol and polyethylene glycol-polysiloxane.
The defoaming agent adopted by the invention has low surface tension and high surface activity, can inhibit or eliminate substances of foam in a system, is nontoxic and harmless, and can keep good fluidity and physical state of the emulsion paint.
Preferably, the dispersant is a modified polycarboxylate dispersant.
The modified polycarboxylate dispersant adopted by the invention is a high-efficiency scale inhibition dispersant, has good dispersion effect on scaling salts such as calcium phosphate scale, calcium carbonate scale and the like in water and inorganic mineral substances, can efficiently disperse encountered inorganic particles, can resist the influence of PH, and can play a role in efficient dispersion by matching with other components of the invention. In addition, the defoaming agent and the dispersing agent adopted by the invention are low-odor and VOC-free materials.
Preferably, the thickening agent is a mixture of nonionic associative polyurethane and environment-friendly polyurethane, and the weight ratio of the nonionic associative polyurethane to the environment-friendly polyurethane is 2-3: 1.
Further, the weight ratio of the nonionic associative polyurethane to the environment-friendly polyurethane is 3: 1.
The thickener is prepared by matching a mixture of nonionic associative polyurethane and environment-friendly polyurethane, can provide better rheological property and leveling property compared with other thickeners, does not contain VOC, and is safe and environment-friendly.
Preferably, the cellulose is at least one of carboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose and ethyl cellulose.
The raw materials of the invention are added with the cellosilk, when the emulsion paint is used on the wall surface, the wall surface has filamentous irregular stripes generated by the cellosilk, the visual sense is very layered, and the wall body is very beautiful.
Preferably, the filler is aluminum silicate powder with the particle size less than or equal to 5.0 mu m.
The filler added in the invention is superfine aluminum silicate powder, compared with other fillers, the filler has high whiteness, low oil absorption, easy dispersion and low side angle light, has a honeycomb-shaped ultramicropore structure, can effectively adsorb harmful particles in the air after being prepared into a paint film, and can quickly remove harmful gas and harmful particles in the air by being matched with a silicon dioxide and zinc oxide composite material, bamboo vinegar liquid and a formaldehyde-removing traditional Chinese medicine extracting solution.
Preferably, the pigment is white titanium dioxide, lithopone, zinc oxide pigment or other colored pigment.
The preparation method of the latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the raw materials according to the latex paint;
(2) sequentially adding the filler, the silicon dioxide and zinc oxide composite material, the cellulose, the formaldehyde-removing traditional Chinese medicine extracting solution, the water, the bamboo vinegar liquid and the dispersing agent into a container, and uniformly stirring at a rotating speed of more than or equal to 800 rpm;
(3) and (3) sequentially adding the acrylic emulsion, the defoaming agent and the thickening agent into the slurry uniformly stirred in the step (2), uniformly stirring, adding the pigment, and uniformly stirring to obtain the emulsion paint.
Preferably, the step (2) is carried out until the fineness of the slurry is less than or equal to 40 mu m.
Preferably, the rotation speed of the stirring in the step (3) is 100-200 rpm.
The preparation method of the emulsion paint is simple, easy to operate and suitable for popularization, and the emulsion paint prepared by the preparation method has good rheological property and leveling property.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects: the latex paint prepared by the invention has extremely low odor and zero VOC content, the raw material formula of the latex paint adopts the silicon dioxide and zinc oxide composite material, the bamboo vinegar liquid and the formaldehyde-removing traditional Chinese medicine extracting solution to be coordinated and matched with each other, the synergy is realized, the adsorption of harmful gases such as formaldehyde and the like is enhanced, meanwhile, the decomposition is carried out, the danger that the harmful gases are adsorbed by a single method in the traditional technology and are released again after saturation is avoided, the latex paint does not contain toxic raw materials, the decomposition efficiency is high, the formaldehyde and other harmful gases can be rapidly decomposed, and the air is purified.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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
A preparation method of latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the following raw materials: 500 parts of styrene-acrylate emulsion, 10 parts of nano polysiloxane-dense copolymer emulsion, 10 parts of thickening agent (nonionic associative polyurethane and environment-friendly polyurethane are mixed according to the weight ratio of 3: 1), 10 parts of dispersing agent, 150 parts of aluminum silicate powder, 150 parts of silicon dioxide and zinc oxide composite material, 200 parts of bamboo vinegar, 0.5 part of carboxymethyl cellulose, 40 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50 parts of pigment and 150 parts of water; the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 90 parts of bighead atractylodes rhizome, 90 parts of wrinkled gianthyssop herb, 60 parts of rhizoma atractylodis, 40 parts of coix seed and 10 parts of clove;
(2) sequentially adding aluminum silicate powder, silicon dioxide and zinc oxide composite material, carboxymethyl cellulose noraldehyde traditional Chinese medicine extract, water, bamboo vinegar and a dispersing agent into a container, and stirring until the fineness of the slurry is less than or equal to 40 mu m, wherein the rotating speed is more than or equal to 800 rpm;
(3) and (3) sequentially adding the styrene-acrylate emulsion, the nano polysiloxane-dense copolymer emulsion and the thickening agent into the uniformly stirred slurry obtained in the step (2), uniformly stirring at the rotating speed of more than or equal to 800rpm, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
Example 2
A preparation method of latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the following raw materials: 700 parts of styrene-acrylate emulsion, 30 parts of nano polysiloxane-dense copolymer emulsion, 20 parts of thickening agent (nonionic associative polyurethane and environment-friendly polyurethane are mixed according to the weight ratio of 3: 1), 40 parts of dispersing agent, 300 parts of aluminum silicate powder, 300 parts of silicon dioxide and zinc oxide composite material, 300 parts of bamboo vinegar, 2 parts of carboxymethyl cellulose, 60 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 70 parts of pigment and 250 parts of water; the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 110 parts of bighead atractylodes rhizome, 110 parts of wrinkled gianthyssop herb, 80 parts of rhizoma atractylodis, 50 parts of coix seed and 30 parts of clove;
(2) sequentially adding aluminum silicate powder, silicon dioxide and zinc oxide composite material, carboxymethyl cellulose noraldehyde traditional Chinese medicine extract, water, bamboo vinegar and a dispersing agent into a container, and stirring until the fineness of the slurry is less than or equal to 40 mu m, wherein the rotating speed is more than or equal to 800 rpm;
(3) and (3) sequentially adding the styrene-acrylate emulsion, the nano polysiloxane-dense copolymer emulsion and the thickening agent into the uniformly stirred slurry obtained in the step (2), uniformly stirring at the rotating speed of more than or equal to 800rpm, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
Example 3
A preparation method of latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the following raw materials: 700 parts of styrene-acrylate emulsion, 20 parts of nano polysiloxane-dense copolymer emulsion, 15 parts of thickening agent (nonionic associative polyurethane and environment-friendly polyurethane are mixed according to the weight ratio of 3: 1), 20 parts of dispersing agent, 200 parts of aluminum silicate powder, 300 parts of silicon dioxide and zinc oxide composite material, 250 parts of bamboo vinegar, 2 parts of carboxymethyl cellulose, 50 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 60 parts of pigment and 200 parts of water; the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 100 parts of bighead atractylodes rhizome, 100 parts of wrinkled gianthyssop herb, 70 parts of rhizoma atractylodis, 40 parts of coix seed and 20 parts of clove;
(2) sequentially adding aluminum silicate powder, silicon dioxide and zinc oxide composite material, carboxymethyl cellulose noraldehyde traditional Chinese medicine extract, water, bamboo vinegar and a dispersing agent into a container, and stirring until the fineness of the slurry is less than or equal to 40 mu m, wherein the rotating speed is more than or equal to 800 rpm;
(3) and (3) sequentially adding the styrene-acrylate emulsion, the nano polysiloxane-dense copolymer emulsion and the thickening agent into the uniformly stirred slurry obtained in the step (2), uniformly stirring at the rotating speed of more than or equal to 800rpm, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
Example 4
A preparation method of latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the following raw materials: 500 parts of PRIML SF-508 emulsion, 10 parts of polyethylene glycol-polysiloxane, 10 parts of thickening agent (mixing nonionic associated polyurethane and environment-friendly polyurethane according to a weight ratio of 3: 1), 10 parts of dispersing agent, 150 parts of aluminum silicate powder, 150 parts of silicon dioxide and zinc oxide composite material, 200 parts of bamboo vinegar, 0.5 part of ethyl cellulose, 40 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50 parts of pigment and 150 parts of water; the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 110 parts of bighead atractylodes rhizome, 110 parts of wrinkled gianthyssop herb, 80 parts of rhizoma atractylodis, 50 parts of coix seed and 30 parts of clove;
(2) sequentially adding aluminum silicate powder, silicon dioxide and zinc oxide composite material, ethyl cellulose, a formaldehyde-removing traditional Chinese medicine extracting solution, water, bamboo vinegar and a dispersing agent into a container, and stirring until the fineness of the slurry is less than or equal to 40 mu m, wherein the rotating speed is more than or equal to 800 rpm;
(3) and (3) sequentially adding the PRIMAL SF-508 emulsion, the polyethylene glycol-polysiloxane and the thickening agent into the uniformly stirred slurry obtained in the step (2), uniformly stirring at the rotating speed of more than or equal to 800rpm, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
Example 5
A preparation method of latex paint capable of efficiently decomposing formaldehyde comprises the following steps:
(1) weighing the following raw materials: 500 parts of PRIML SF-508 emulsion, 10 parts of polypropylene glycol, 10 parts of thickening agent (mixing nonionic associated polyurethane and environment-friendly polyurethane according to a weight ratio of 2: 1), 10 parts of dispersing agent, 150 parts of aluminum silicate powder, 150 parts of silicon dioxide and zinc oxide composite material, 200 parts of bamboo vinegar, 0.5 part of methyl cellulose, 40 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50 parts of pigment and 150 parts of water; the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 100 parts of bighead atractylodes rhizome, 100 parts of wrinkled gianthyssop herb, 80 parts of rhizoma atractylodis, 50 parts of coix seed and 30 parts of clove;
(2) sequentially adding aluminum silicate powder, silicon dioxide and zinc oxide composite material, methyl cellulose, formaldehyde-removing traditional Chinese medicine extract, water, bamboo vinegar and a dispersing agent into a container, and stirring until the fineness of the slurry is less than or equal to 40 mu m, wherein the rotating speed is more than or equal to 800 rpm;
(3) and (3) sequentially adding the PRIMAL SF-508 emulsion, the polypropylene glycol and the thickening agent into the uniformly stirred slurry obtained in the step (2), uniformly stirring at the rotating speed of more than or equal to 800rpm, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
Performance testing
The latex paints prepared in examples 1-5 were tested for performance and the results are shown in Table 1.
Table 1 example 1 latex paint performance test results
From the above, the contents of free formaldehyde, volatile organic compounds, soluble heavy metals and the like in the latex paints prepared in the embodiments 1 to 5 of the invention are far lower than the national standard.
Formaldehyde removal test
At 25 ℃/25m with the formaldehyde concentration of 4mg/L2The test samples of examples 1 to 5 (uncoated test samples were used as blank controls) were applied to one wall of a closed room, and the formaldehyde concentration in the room after application of the test samples 7d, 30d and 60d was measured according to GB18580-2001, national standards for formaldehyde emission measurement, the results of which are shown in Table 2.
TABLE 2 Formaldehyde removal test results
And (3) displaying a detection result: the formaldehyde concentration in the rooms treated in examples 1-5 of the present invention was significantly reduced compared to the blank control, indicating that the latex paint of the present invention can treat formaldehyde with high efficiency due to the formaldehyde enrichment that occurs when the formaldehyde is treated on the surface of the latex paint.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The latex paint capable of efficiently decomposing formaldehyde is characterized by comprising the following raw materials in parts by weight: 700 parts of acrylic emulsion, 10-30 parts of defoaming agent, 10-20 parts of thickening agent, 10-40 parts of dispersing agent, 300 parts of filler 150, 300 parts of silicon dioxide and zinc oxide composite material 150, 300 parts of bamboo vinegar liquid 200, 0.5-2 parts of cellulose, 40-60 parts of formaldehyde-removing traditional Chinese medicine extracting solution, 50-70 parts of pigment and 250 parts of water 150.
2. The latex paint capable of efficiently decomposing formaldehyde according to claim 1, wherein the formaldehyde-removing traditional Chinese medicine extracting solution comprises the following raw materials in parts by weight: 90-110 parts of bighead atractylodes rhizome, 90-110 parts of wrinkled gianthyssop herb, 60-80 parts of rhizoma atractylodis, 40-50 parts of coix seed and 10-30 parts of clove.
3. The latex paint capable of efficiently decomposing formaldehyde according to claim 1, wherein the preparation method of the silica and zinc oxide composite material is as follows: to the solution containing 0.1-0.2mol/LZn2+Slowly adding porous silicon dioxide into a salt solution, then slowly adding a precipitator, adjusting the pH value of the mixed solution to 8.0-8.5, then reacting at the constant temperature of 70-95 ℃ for 8-10h, filtering a product obtained by the reaction, collecting filter residues, drying the filter residues at the temperature of 80-90 ℃ for 8h, and calcining at the temperature of 300-400 ℃ for 4h to obtain the silicon dioxide and zinc oxide composite material;
wherein the salt solution is any one of a zinc nitrate solution, a zinc acetate solution and a zinc sulfate solution; the precipitant is sodium silicate solution with the concentration of 0.05-0.1 mol/L; the adding amount of the porous silicon dioxide is 10-15g of the porous silicon dioxide in every 100mL of the salt solution.
4. The latex paint capable of decomposing formaldehyde with high efficiency according to claim 1, wherein the acrylic emulsion is PRIMAL SF-508 emulsion or styrene-acrylate emulsion.
5. The latex paint capable of decomposing formaldehyde with high efficiency according to claim 1, wherein the defoaming agent is at least one of nano polysiloxane-dense copolymer emulsion, polypropylene glycol and polyethylene glycol-polysiloxane.
6. The latex paint capable of decomposing formaldehyde with high efficiency according to claim 1, wherein the thickener is a mixture of nonionic associative polyurethane and environment-friendly polyurethane, and the weight ratio of the nonionic associative polyurethane to the environment-friendly polyurethane is 2-3: 1.
7. The latex paint capable of decomposing formaldehyde with high efficiency according to claim 1, wherein the cellulose is at least one of carboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose and ethyl cellulose.
8. The latex paint capable of decomposing formaldehyde with high efficiency according to claim 1, wherein the filler is aluminum silicate powder with a particle size of less than or equal to 5.0 μm.
9. The preparation method of the latex paint capable of efficiently decomposing formaldehyde is characterized by comprising the following steps:
(1) weighing raw materials according to the latex paint of claim 1;
(2) sequentially adding the filler, the silicon dioxide and zinc oxide composite material, the cellulose, the formaldehyde-removing traditional Chinese medicine extracting solution, the water, the bamboo vinegar liquid and the dispersing agent into a container, and uniformly stirring at a rotating speed of more than or equal to 800 rpm;
(3) and (3) sequentially adding the acrylic emulsion, the defoaming agent and the thickening agent into the slurry uniformly stirred in the step (2), uniformly stirring, adding the pigment, and continuously uniformly stirring to obtain the emulsion paint.
10. The method for preparing the latex paint capable of efficiently decomposing formaldehyde according to claim 9, wherein the step (2) is performed by stirring until the fineness of the slurry is less than or equal to 40 μm.
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| CN202010490319.2A CN111534176A (en) | 2020-06-02 | 2020-06-02 | Emulsion paint capable of efficiently decomposing formaldehyde and preparation method thereof |
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| CN202010490319.2A CN111534176A (en) | 2020-06-02 | 2020-06-02 | Emulsion paint capable of efficiently decomposing formaldehyde and preparation method thereof |
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| CN111534176A true CN111534176A (en) | 2020-08-14 |
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| CN202010490319.2A Pending CN111534176A (en) | 2020-06-02 | 2020-06-02 | Emulsion paint capable of efficiently decomposing formaldehyde and preparation method thereof |
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Effective date of registration: 20230620 Address after: 323000 Yanghao Block, Yunfeng Street Economic Development Zone, Suichang County, Lishui City, Zhejiang Province Applicant after: Zhejiang Weifuke New Materials Co.,Ltd. Address before: 523000 No. 201, building 42, Xiangzhang oasis phase II, No. 98, Dongcheng Road, Zhangmutou town, Dongguan City, Guangdong Province Applicant before: Wang Ruiqin |