CN108624104B - Nano formaldehyde sealant and preparation method and application thereof - Google Patents
Nano formaldehyde sealant and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The invention belongs to the technical field of air purification, and discloses a nano formaldehyde sealant as well as a preparation method and application thereof. The nano formaldehyde sealant is mainly prepared from the following components in percentage by weight: 40-60% of nano silicon solution, 5-15% of ultraviolet curing resin, 3-7% of glass powder, 3-7% of lignocellulose, 0.8-1.5% of hardening agent, 0.1-0.3% of mixed ultraviolet absorption initiator, 0.1-1.0% of drier, 0.1-0.3% of defoaming agent, 0.1-0.5% of anti-skinning agent, 0.1-1.0% of essence and the balance of water. The nano formaldehyde sealant disclosed by the invention is used for coating or spraying decoration materials to seal formaldehyde or peculiar smell in furniture, and has an obvious effect, and the nano formaldehyde sealant is harmless to human bodies, has faint scent and pleasant fragrance and has certain waterproof and easy-to-clean effects. The sealing agent is stable and efficient, and has no secondary pollution.
Description
Technical Field
The invention belongs to the technical field of air purification, and relates to a nano formaldehyde sealant, and a preparation method and application thereof. The nano formaldehyde sealant is used as an air purifying agent.
Background
Formaldehyde is a main pollutant in indoor air, and in a household environment, the formaldehyde can be released from decoration materials such as artificial boards and the like. As early as 1992, the United states California air resources Committee has established that formaldehyde is a toxic air pollutant and is suspected of being a carcinogen. In 2008, this state legislation limits formaldehyde emissions. In recent years, China pays more attention to indoor formaldehyde pollution, and a series of measures are taken for treatment, and the adoption of a formaldehyde sealant is one of the measures.
Indoor formaldehyde pollution is mainly achieved through the following ways: the first route is as follows: from the manufacture of furniture from artificial boards: the decoration of Chinese city family tends to be rational, and people have changed the decoration concept. People select better furniture after simple decoration, so some furniture manufacturers and decoration enterprises use plates with unqualified formaldehyde content for pursuing profits, and adopt irregular decoration processes. This results in serious indoor formaldehyde pollution. And (2) a second way: decorative materials derived from other components containing formaldehyde components, such as white latex, foam, paint, and coatings. The decorative materials have high formaldehyde content, and the formaldehyde can be slowly released into the air, so that the indoor air is polluted. The formaldehyde in the indoor environment is widely available on the whole, and the formaldehyde content of the newly-decorated house can reach 0.40mg/m3Individually, it is possible to reach 1.50mg/m3Greatly threatens the health of people.
In order to reduce the pollution of formaldehyde in indoor air, a formaldehyde sealant is developed. However, the existing formaldehyde blocking agent has a plurality of defects: poor stability, easy shedding, easy formation of secondary pollution and the sealing effect on formaldehyde to be improved. Such as: the patent application with the application number of 201710021292.0 prepares the sealant of pollutants such as board formaldehyde and the like by mixing an amino compound, a film forming agent and glacial acetic acid, but the selected raw materials of the amino compound and the glacial acetic acid have strong pungent odor, and when the amino compound and the glacial acetic acid are applied to indoor household environment, secondary pollution of air and discomfort of users can be brought.
Therefore, how to develop a formaldehyde blocking agent with remarkable effect and excellent performance is one of the problems which need to be solved urgently.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide a nano formaldehyde blocking agent. The nano formaldehyde sealant has a sealing effect on volatile organic compounds released by decoration materials such as wooden furniture, floors, artificial boards, paint, plastic veneers and the like, does not harm human bodies, and has a faint scent and a pleasant fragrance and certain waterproof, mildew-proof and easy-to-clean effects.
The invention also aims to provide a preparation method of the nano formaldehyde sealant.
The invention further aims to provide application of the nano formaldehyde sealant.
The purpose of the invention is realized by the following technical scheme:
a nano formaldehyde sealant is mainly prepared from the following components in percentage by weight: 40-60% of nano silicon solution, 5-15% of ultraviolet curing resin, 3-7% of glass powder, 3-7% of lignocellulose, 0.8-1.5% of hardening agent, 0.1-0.3% of mixed ultraviolet absorption initiator, 0.1-1.0% of drier, 0.1-0.3% of defoaming agent, 0.1-0.5% of anti-skinning agent, 0.1-1.0% of essence and the balance of water.
The nano silicon solution is an ethyl orthosilicate ethanol solution, and the mass ratio of ethyl orthosilicate to ethanol is 1: (5-10).
The ultraviolet light curing resin is at least one of acrylic light curing resin, epoxy light curing resin and polyurethane light curing resin.
The diameter of the glass powder particles is 2.5-5.0 mu m, the specific gravity is 2.0-3.0 g/ml, and the Mohs hardness is 6.0-8.0.
The lignocellulose has an average length of 1-3 mm and a diameter of 25-100 μm.
The lignocellulose is preferably lignocellulose satisfying the following conditions: the cellulose-lignin composite material comprises, by mass, 40-50% of cellulose, 10-30% of hemicellulose and 20-30% of lignin.
The hardening agent is more than one of bisaminosilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane and gamma- (methacryloyloxy) propyltrimethoxysilane.
The mixed ultraviolet absorption initiator is at least one of 2-hydroxy-2-methyl-1-phenyl acetone, benzoin dimethyl ether and diphenylethanone.
The drier is at least one of 2,2' -bipyridyl, 1, 10-phenanthroline and cobalt isooctanoate.
The defoaming agent is at least one of polydimethylsiloxane, fluorosilicone and ethylene glycol siloxane.
The anti-skinning agent is at least one of methyl ethyl ketoxime, methyl isobutyl ketoxime and dipentene.
The essence is more than one of lavender alcohol, lavender acetate, beta-damascone, rose oxide, alpha-threone, quercetin, cornflower bisoside, and beta-carotene.
The preparation method of the nano formaldehyde sealant comprises the following steps:
(1) stirring the nano silicon solution, the glass powder, the lignocellulose, the defoaming agent and the anti-skinning agent at a high speed to obtain a mixture A; the high-speed stirring speed is 13000-15000 r/min, the linear speed is not lower than 20-30 m/s, the temperature is 40-60 ℃, and the stirring is carried out for 1-2 hours;
(2) stirring and mixing a hardening agent, ultraviolet curing resin and a mixed ultraviolet absorption initiator with the mixture A in the step (1) at a high speed to obtain a mixture B; the high-speed stirring condition is that the rotating speed is 10000-13000 r/min, the linear speed is not lower than 15-20 m/s, the temperature is 30-40 ℃, and the stirring is carried out for 1-2 hours;
(3) stirring and mixing the drier, the essence and the mixture B to obtain a mixture C; stirring at a rotation speed of 5000-10000 rpm and a linear speed of not less than 10-15 m/s at a temperature of 20-30 ℃ for 1-2 hours;
(4) and adding water into the mixture C, and uniformly mixing to obtain the nano formaldehyde sealant. The viscosity of the nano formaldehyde sealant is 2-8 mPa · s, and the pH value is 7-9.
The nano formaldehyde sealant can be used in a coating or high-pressure spraying mode.
The nano formaldehyde sealant is coated or sprayed on the surface of a decoration material, in particular to the surface of the decoration material such as wooden furniture, floors, artificial boards, paint, plastic veneers and the like.
The nano formaldehyde sealant is used as an air purifying agent.
The principle of the invention is that an inorganic transparent film with certain strength, biological non-toxicity, difficult shedding and strong durability is formed on the surface of the decoration material, and the sealing effect of formaldehyde or peculiar smell released by the decoration materials such as wooden furniture, floors and the like is realized by blocking the release path of the decoration material which releases the formaldehyde or peculiar smell.
The invention has the beneficial effects that: the nano formaldehyde sealant disclosed by the invention is used for coating or spraying decoration materials such as wooden furniture, floors and the like, formaldehyde or peculiar smell can be sealed in the furniture, the harm of the formaldehyde or peculiar smell of the decoration materials to a human body is reduced or even eliminated, and the nano formaldehyde sealant is harmless to the human body, has faint scent and pleasant fragrance and certain waterproof and easy-to-clean effects. The sealant disclosed by the invention is convenient to use and has an obvious formaldehyde sealing effect. The sealing agent is stable and efficient, and has no secondary pollution.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto. After water is added into the nano formaldehyde sealant, tetraethoxysilane is hydrolyzed, and nano silicon dioxide is generated in a product.
Example 1
A preparation method of a nano formaldehyde sealant comprises the following steps: the percentage is that the weight percentage is,
(1) stirring 40.0% of nano-silicon solution (tetraethoxysilane and ethanol with the mass ratio of 1: 5), 3.0% of glass powder (the particle diameter is 2.5 mu m, the specific gravity is 2.0g/ml, the Mohs hardness is 6.0), 3.0% of lignocellulose (the average length is 1mm, the diameter is 25 mu m), 0.1% of defoaming agent (polydimethylsiloxane) and 0.1% of anti-skinning agent (methyl ethyl ketoxime) for 1 hour at the rotation speed of 13000 r/min and the linear speed of not less than 20m/s and at the temperature of 40 ℃ to obtain a mixture A;
(2) adding 0.8% of hardening agent (bisaminosilane), 5.0% of ultraviolet curing resin (acrylic acid type light curing resin) and 0.1% of mixed ultraviolet absorption initiator (2-hydroxy-2-methyl-1-phenyl acetone) into the mixture A, and stirring for 1 hour at the rotation speed of 10000 r/min and the linear speed of not less than 15m/s and the temperature of 30 ℃ to obtain a mixture B;
(3) adding 0.1% drier (2, 2' -bipyridyl) and 0.1% essence (lavender alcohol) into the mixture B, stirring at 20 deg.C at 5000 rpm and linear speed no less than 10m/s for 1 hr to obtain mixture C;
(4) and adding deionized water into the mixture C, controlling the temperature within 20 ℃, controlling the viscosity of the product to be 2mPa & s and the pH value to be 7, and finally forming a liquid product which is used as a high-pressure spray.
The product has the use effect: adopts a national standard detection method of formaldehyde determination method in air-phenol reagent spectrophotometry (GB/T18204.26-2000) at 2m3In a simulated closed experimental box, the relative humidity is 45 +/-3, the temperature is 23.0 +/-0.5, the surface air speed is 0.1-0.3 m/s, and the specification of a test piece is 1m2The test time of the plate (1m is multiplied by 1m) is 24-96 hours of release time.
Blank group: a shaving board, a density board and a veneer board which are produced by a certain factory in the market and have the nominal E1 grade and the thickness of 2.0cm are placed into a simulated closed experiment box to be released for 96 hours, and then the concentration of formaldehyde cumulatively released in the box is detected.
Treatment group: the product of this example was uniformly sprayed onto the surface of the test specimens in an amount of 20g/m, respectively2、30g/m2、40g/m2The same detection method as compared to the blank group, three groups in parallel. The test results are shown in table 1.
Table 1 effect of using the product of example 1
Note: in the table, n.d. represents a detection limit lower than the national standard method (detection limit)<0.01mg/m3).
As can be seen from the results of the product application, different amounts of 20g/m of spray were applied to the test samples2、30g/m2、40g/m2After the product is put into a simulated closed experiment box and released for 24-96 hours, the concentration of formaldehyde released in a detection box of a shaving board, a density board and a veneer board which are produced by a certain factory in the market and have the nominal E1 level and the thickness of 2.0cm can be controlled to be lower than the national standard detection limit of the concentration of formaldehyde. Only the spraying amount is 20g/m2Under the condition, the concentration of formaldehyde released by the particle board and the density board is 0.02-0.04 mg/m3Between and below 0.08mg/m set for indoor formaldehyde in national standard3Environmental concentration standard of (2). Meanwhile, formaldehyde is used as one of toxic organic gases with the strongest volatility, the effectiveness of the formaldehyde is proved in the application effect detection of the product, and although the volatile gas is not detected, the working principle of the product can also play a role in sealing other gases in the decoration material. As a control, the particle board of the blank group samples is 0.08-0.20 mg/m3The concentration range is 0.06-0.19 mg/m3The concentration range of the veneer is 0.03-0.10 mg/m3Concentration range.
Example 2
A preparation method of a nano formaldehyde sealant comprises the following steps: the percentage is that the weight percentage is,
(1) sequentially adding 5.0% of glass powder (particle diameter is 2.8 mu m, specific gravity is 2.5g/ml, Mohs hardness is 7.0), 5.0% of lignocellulose (average length is 2mm, diameter is 50 mu m), 0.2% of defoaming agent (fluorosilicone) and 0.3% of anti-skinning agent (methyl isobutyl ketoxime) into 50.0% of nano silicon solution (tetraethoxysilane and ethanol in a mass ratio of 1: 8), stirring at the rotation speed of 14000 r/min at the linear speed of not less than 25m/s and the temperature of 50 ℃ for 1.5 hours to obtain a mixture A;
(2) adding 1.0% of hardening agent (N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane), 10.0% of ultraviolet curing resin (epoxy type light curing resin) and 0.2% of mixed ultraviolet absorption initiator (benzoin dimethyl ether) into the mixture A, and stirring for 1.5 hours at the rotating speed of 11500 r/min and the linear speed of not less than 18m/s and the temperature of 35 ℃ to obtain a mixture B;
(3) adding 0.6% of drier (1, 10-phenanthroline) and 0.1% of essence (lavender acetate: beta-damascone: rose ether mass ratio is 1:1:1) into the mixture B, and stirring for 1.5 hours at the rotation speed of 7500 r/min and the linear speed of not less than 12m/s and the temperature of 25 ℃ to obtain a mixture C;
(4) and adding deionized water into the mixture C, controlling the temperature within 25 ℃, controlling the viscosity of the product to be 5mPa & s and the pH value to be 8, and finally forming a slightly viscous liquid product which is used as a high-pressure spray.
The product has the use effect: adopts a national standard detection method of formaldehyde determination method in air-phenol reagent spectrophotometry (GB/T18204.26-2000) at 2m3In a simulated closed experimental box, the relative humidity is 45 +/-3, the temperature is 23.0 +/-0.5, the surface air speed is 0.1-0.3 m/s, and the specification of a test piece is 1m2The test time of the plate (1m is multiplied by 1m) is 24-96 hours of release time.
Blank group: a shaving board, a density board and a veneer board which are produced by a certain factory in the market and have the nominal E1 grade and the thickness of 2.0cm are placed into a simulated closed experiment box to be released for 96 hours, and then the concentration of formaldehyde cumulatively released in the box is detected.
Treatment group: uniformly spraying the product on the surface of a tested sample, wherein the dosage is respectively 20g/m2、30g/m2、40g/m2The same detection method as compared to the blank group, three groups in parallel. The test results are shown in table 2.
Table 2 effect of using the product of example 2
Note: in the table, n.d. represents a detection limit lower than the national standard method (detection limit)<0.01mg/m3).
As can be seen from the results of the product application, different spray application rates of 50g/m were applied to the test specimens2、60g/m2、70g/m2After the product is put into a simulated closed experiment box and released for 24-96 hours, the concentration of formaldehyde accumulated and released in a shaving board, a density board and a veneer board detection box with the nominal E1 grade and the thickness of 2.0cm, which are produced by a certain factory in the market, can be controlled to be lower than the concentration of formaldehyde in ChinaMarking the detection limit. Meanwhile, formaldehyde is used as one of toxic organic gases with the strongest volatility, the effectiveness of the formaldehyde is proved in the application effect detection of the product, and although the volatile gas is not detected, the working principle of the product can also play a role in sealing other gases in the decoration material. As a control, the particle board of the blank group samples is 0.08-0.20 mg/m3The concentration range is 0.06-0.19 mg/m3The concentration range of the veneer is 0.03-0.10 mg/m3Concentration range.
Example 3
A preparation method of a nano formaldehyde sealant comprises the following steps: the percentage is that the weight percentage is,
(1) sequentially adding 3.0% of glass powder (particle diameter is 5.0 mu m, specific gravity is 3.0g/ml, Mohs hardness is 8.0), 7.0% of lignocellulose (average length is 3mm, diameter is 100 mu m), 0.3% of defoaming agent (component is ethylene glycol siloxane), 0.5% of anti-skinning agent (component is dipentene), stirring for 2 hours at the rotation speed of 15000 r/min at the linear speed of not less than 30m/s and the temperature of 60 ℃ to obtain a mixture A;
(2) adding 1.5% of hardening agent (gamma- (methacryloyloxy) propyl trimethoxy silane), 15.0% of ultraviolet curing resin (polyurethane type light curing resin) and 0.3% of mixed ultraviolet absorption initiator (diphenyl ethyl ketone) into the mixture A, and stirring for 2 hours at the rotating speed of 13000 r/min and the linear speed of not less than 20m/s and the temperature of 40 ℃ to obtain a mixture B;
(3) adding 1.0% drier (cobalt iso-octoate) and 1.0% essence (alpha-threone: quercetin: cyanidin: beta-carotene: 1:1:1) into the mixture B, and stirring at a rotation speed of 10000 r/min and a linear speed of not less than 15m/s at a temperature of 30 ℃ for 2 hours to obtain a mixture C;
(4) and adding deionized water into the mixture C, controlling the temperature within 30 ℃, controlling the viscosity of the product to be 8mPa & s and the pH value to be 9, and finally forming a liquid product for coating.
The product has the use effect: adopts 'Formaldehyde in air' determination methodThe national standard detection method of Fa-phenol reagent spectrophotometry (GB/T18204.26-2000) is carried out at standard 2m3In a simulated closed experimental box, the relative humidity is 45 +/-3, the temperature is 23.0 +/-0.5, the surface air speed is 0.1-0.3 m/s, and the specification of a test piece is 1m2The test time of the plate (1m is multiplied by 1m) is 24-96 hours of release time.
Blank group: a shaving board, a density board and a veneer board which are produced by a certain factory in the market and have the nominal E1 grade and the thickness of 2.0cm are placed into a simulated closed experiment box to be released for 96 hours, and then the concentration of formaldehyde cumulatively released in the box is detected.
Treatment group: uniformly spraying the product on the surface of a tested sample, wherein the dosage is respectively 20g/m2、30g/m2、40g/m2The same detection method as compared to the blank group, three groups in parallel. The test results are shown in table 3.
Table 3 effect of using the product of example 3
Note: in the table, n.d. represents a detection limit lower than the national standard method (detection limit)<0.01mg/m3).
As can be seen from the results of the product application, different coating dosages of 100g/m were applied to the test samples2、120g/m2、140g/m2After the product is put into a simulated closed experiment box and released for 24-96 hours, the concentration of formaldehyde released in a detection box of a shaving board, a density board and a veneer board which are produced by a certain factory in the market and have the nominal E1 level and the thickness of 2.0cm can be controlled to be lower than the national standard detection limit of the concentration of formaldehyde. Compared with spraying, the coating mode has thicker film forming thickness, so the effect is more obvious, and meanwhile, the product has the same sealing effect on other volatile organic gases released by the decoration materials except formaldehyde. As a control, the particle board of the blank group samples is 0.08-0.20 mg/m3The concentration range is 0.06-0.19 mg/m3The concentration range of the veneer is 0.03-0.10 mg/m3Concentration range.
The sealing agent of the invention seals formaldehyde or peculiar smell in furniture, reduces or even eliminates the harm of formaldehyde or peculiar smell of decoration materials to human bodies, and the nano formaldehyde sealing agent not only has no harm to human bodies, but also has fragrant and pleasant fragrance and certain waterproof and easy-to-clean effects. The sealant disclosed by the invention is convenient to use and has an obvious formaldehyde sealing effect. The sealing agent is stable and efficient, and has no secondary pollution.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.
Claims (6)
1. A nanometer formaldehyde sealant is characterized in that: the paint is mainly prepared from the following components in percentage by weight: 40-60% of nano-silicon solution, 5-15% of ultraviolet curing resin, 3-7% of glass powder, 3-7% of lignocellulose, 0.8-1.5% of hardening agent, 0.1-0.3% of ultraviolet absorption initiator, 0.1-1.0% of drier, 0.1-0.3% of defoaming agent, 0.1-0.5% of anti-skinning agent, 0.1-1.0% of essence and the balance of water;
the nano silicon solution is an ethanol solution of tetraethoxysilane; the mass ratio of the ethyl orthosilicate to the ethanol is 1: (5-10);
the ultraviolet light curing resin is at least one of acrylic light curing resin, epoxy light curing resin and polyurethane light curing resin;
the diameter of the particles of the glass powder is 2.5-5.0 mu m, the specific gravity is 2.0-3.0 g/mL, and the Mohs hardness is 6.0-8.0;
the average length of the lignocellulose is 1-3 mm, and the diameter of the lignocellulose is 25-100 mu m; the lignocellulose meets the following conditions: the cellulose-lignin composite material comprises, by mass, 40-50% of cellulose, 10-30% of hemicellulose and 20-30% of lignin;
the hardening agent is more than one of bisaminosilane and gamma- (methacryloyloxy) propyl trimethoxy silane;
the ultraviolet absorption initiator is at least one of 2-hydroxy-2-methyl-1-phenyl acetone, benzoin dimethyl ether and diphenylethanone;
the drier is at least one of 2,2' -bipyridyl, 1, 10-phenanthroline and cobalt isooctanoate;
the defoaming agent is at least one of polydimethylsiloxane, fluorosilicone and ethylene glycol siloxane;
the anti-skinning agent is at least one of methyl ethyl ketoxime, methyl isobutyl ketoxime and dipentene;
the essence is more than one of lavender alcohol, lavender acetate, beta-damascone, rose oxide, alpha-threone, quercetin, cornflower bisoside, and beta-carotene.
2. The preparation method of the nano formaldehyde blocking agent according to claim 1, characterized in that: the method comprises the following steps:
(1) stirring the nano silicon solution, the glass powder, the lignocellulose, the defoaming agent and the anti-skinning agent at a high speed to obtain a mixture A;
(2) stirring and mixing a hardening agent, ultraviolet curing resin and an ultraviolet absorption initiator with the mixture A in the step (1) at a high speed to obtain a mixture B;
(3) stirring and mixing the drier, the essence and the mixture B to obtain a mixture C;
(4) and adding water into the mixture C, and uniformly mixing to obtain the nano formaldehyde sealant.
3. The preparation method of the nano formaldehyde blocking agent according to claim 2, characterized in that: the high-speed stirring in the step (1) has the rotating speed of 13000-15000 r/min, the linear speed of not less than 20-30 m/s, the temperature of 40-60 ℃, and stirring for 1-2 hours;
the high-speed stirring in the step (2) is carried out for 1-2 hours under the conditions that the rotating speed is 10000-13000 r/min, the linear speed is not lower than 15-20 m/s, the temperature is 30-40 ℃;
the stirring conditions in the step (3) are that the rotating speed is 5000-10000 rpm, the linear speed is not lower than 10-15 m/s, the temperature is controlled at 20-30 ℃, and the stirring is carried out for 1-2 hours.
4. The preparation method of the nano formaldehyde blocking agent according to claim 2, characterized in that: the viscosity of the nano formaldehyde sealant is 2-8 mPa · s, and the pH value is 7-9.
5. The use method of the nano-formaldehyde blocking agent according to claim 1, characterized in that: the nano formaldehyde sealant is used in a coating mode;
the nano formaldehyde sealant is coated on the surface of the decoration material.
6. The application of the nano formaldehyde blocking agent according to claim 1, wherein the nano formaldehyde blocking agent comprises the following components in percentage by weight: the nano formaldehyde sealant is used as an air purifying agent.
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