CN105969007B - A kind of acrylic latex coating and preparation method thereof with air-cleaning function - Google Patents
A kind of acrylic latex coating and preparation method thereof with air-cleaning function Download PDFInfo
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- CN105969007B CN105969007B CN201610350121.8A CN201610350121A CN105969007B CN 105969007 B CN105969007 B CN 105969007B CN 201610350121 A CN201610350121 A CN 201610350121A CN 105969007 B CN105969007 B CN 105969007B
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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
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- 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
- C09D5/16—Antifouling paints; Underwater paints
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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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
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- C09D7/61—Additives non-macromolecular inorganic
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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
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- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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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- C09D7/65—Additives macromolecular
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The present invention relates to paint fields, disclose a kind of acrylic latex coating and preparation method thereof with air-cleaning function.The emulsion paint includes the component of following mass parts：45 55 parts of acrylic emulsion, 46 parts of silica flour, 12 parts of phenoxy resin, 24 parts of bletilla striata powder, 13 parts of cornstarch, 0.25 0.75 parts of glutaraldehyde, 24 parts of air purification particle, 0.04 0.06 parts of antifoaming agent, 0.04 0.06 parts of dispersant, 30 40 parts of water.For the acrylic latex coating with air-cleaning function of the present invention with air-cleaning function, adsorption capacity is big, and purification timeliness is long, good air purification effect.Should have preferable film forming and resistance to soiling simultaneously.
Description
Technical field
The present invention relates to paint field more particularly to a kind of acrylic latex coatings and its preparation with air-cleaning function
Method.
Background technology
As the improvement of people's living standards, the health for itself is also increasingly paid close attention to.In recent years about new finishing after
Room air pollution and the report of incidence relationship of leukaemia be also more common in media.Therefore, people finishing when increasingly
Focus on the feature of environmental protection of finishing material.
Indoors in fitment process, all more or less containing formaldehyde, benzene homologues etc. in plank, glue, wall covering, furniture
Harmful substance several years after finishing even all can be distributed gradually in many decades, to influence the health of human body.Currently on the market
Water paint due to being free of organic solvent, more environmentally friendly, application is more.
Aqueous acrylic latex's paint is equipped with emulsion paint made from color stuffing, water and various auxiliary agents generally by acrylic emulsion.
The advantages that acrylic latex coating is had excellent performance and comprehensively, performance adjustability is good, and organic solvent-free discharges.
Such as application No. is the Chinese patents of CN200510025432.9 to disclose a kind of light-catalyst pigment for internal-wall, by titanium dioxide
Titanium, emulsion paint, antifoaming agent and deionized water composition.The light-catalyst pigment for internal-wall of the invention is uniform with smearing, does not take off for a long time
It falls, beautiful advantage.
Above-mentioned coating has photocatalysis, sterilization, the effect for pernicious gas of degrading due to containing titanium dioxide.But it needs
It is carried out under illumination condition, and interior wall coating can not possibly be for a long time by ultraviolet lighting.
Meanwhile the current coating with air-cleaning function also occurred in the market compared with multiple types.Such as application No. is
201410251188.7 Chinese patent discloses aqueous air purification paint, includes the component of following mass percent：Water
25%~30%；Dispersant 0.5%~1%；Nanometer anion powder 10%；Color filters：25%~30%；Air purification auxiliary agent
1%~5%；Acrylic emulsion：30%~35%；Auxiliary agent：1%~3%.
The harmful substances such as aqueous air purification paint energy Long-term absorption made of the invention and decomposition formaldehyde in indoor air, from
And play the role of purifying air, cigarette taste, the decomposed odour weight in air can also be absorbed and decomposed by photocatalyst
The peculiar smell such as acetaldehyde, acetic acid and ammonia, can be with antimildew and antibacterial, while this air purification paint is free of harmful organic solvent,
Nontoxic, tasteless, environmentally protective, water-fast, weather-proof, ageing-resistant, cold-hot good cycle, strong adhesive force, paint film is smooth soft, dress
Decorations effect is good, and storing and transporting security is easy to use, can be widely used on the exterior wall and interior wall of building construction.
The air purification ingredient of above-mentioned coating is activated carbon, and activated carbon has higher porosity, has preferable absorption
Effect.But at present using activated carbon as major air purify ingredient coating there is also many disadvantages：1. the absorption of activated carbon
Capacity is smaller, and general absorption effective duration is 1 year, and the release of pernicious gas is long-term, therefore cannot be satisfied length
The air purification requirement of phase；2. activated carbon has preferable hygroscopicity, while adsorbing pernicious gas, can also adsorb a large amount of
Moisture causes its originally limited adsorption capacity to be occupied.
Invention content
In order to solve the above technical problem, the present invention provides a kind of acrylic latex coating with air-cleaning function and
Preparation method.For the acrylic latex coating with air-cleaning function of the present invention with air-cleaning function, adsorption capacity is big,
It is long to purify timeliness, good air purification effect.Should have preferable film forming and resistance to soiling simultaneously.
The specific technical solution of the present invention is：A kind of acrylic latex coating with air-cleaning function, including following matter
Measure the component of part：
45-55 parts of acrylic emulsion,
4-6 parts of silica flour,
1-2 parts of phenoxy resin,
2-4 parts of bletilla striata powder,
1-3 parts of cornstarch,
0.25-0.75 parts of glutaraldehyde,
2-4 parts of air purification particle,
0.04-0.06 parts of antifoaming agent,
0.04-0.06 parts of dispersant,
30-40 parts of water.
Further include 20-40 parts of pigment as the preferred of the technical program.
As the preferred of the technical program, the antifoaming agent is selected from vegetable oil, mineral oil, silicone oil；The dispersant choosing
From neopelex, polyacrylamide, polyethylene glycol.
As the preferred of the technical program, the solid content of the acrylic emulsion is 40-50wt%.
A kind of preparation method of the acrylic latex coating with air-cleaning function, step are：
1), by activated carbon composite colloidal sol, TiO 2 sol, aluminium hydroxide 50-70 in mass ratio:30-50:1-3 is uniformly mixed,
Complex sol is obtained, after complex sol is aged 36-72h, solvent is carried out to complex sol with excessive absolute ethyl alcohol and replaces 24-
48h then carries out solvent to complex sol with excessive n-hexane and replaces 12-36h, then removes n-hexane, obtains compound solidifying
Glue；30-40min is dried at 60-100 DEG C to plural gel；Then half is carried out between 200-500 DEG C to carbonize, obtain half charcoal
Half carbide is cleaned, is dry, after crushing, obtaining half charing aerogel particle by compound；Trim,ethylchlorosilane and n-hexane are pressed
Volume ratio is 1-3:10 mixing, obtain hydrophobically modified liquid, and half charing aerogel particle is dispersed to the hydrophobic of its 5-10 times of quality
In modification liquid, modified 4-8h, is made air purification particle at 30-40 DEG C.
In the inventive solutions, air purification particle is compounded in emulsion paint preparation process, the air purification
Mixed sols is first made using activated carbon composite colloidal sol and TiO 2 sol as primary raw material in particle, after plural gel is made in colloidal sol,
Moisture removal is first dried, then carries out half and carbonizes, half charing aerogel particle is obtained after half charing；This method obtained half
Aerogel particle is carbonized, there is higher one-tenth porosity, large specific surface area, adsorption capacity is big, the absorption to harmful substance in air
Effect is preferable.And since its charing is incomplete, the intensity of internal gutter structure is higher, good stability of the dimension, and structure is not easy to send out
Raw brittle fracture.Half-and-half charing aerogel particle carries out hydrophobically modified, on the one hand can avoid emulsion paint water swelling, cracking,
Promote water resistance and resistance to soiling；On the other hand can its prevent from largely adsorbing moisture in air, occupy inner space.Aluminium hydroxide
Aluminium oxide and water can be resolved into after heated, aluminium oxide can promote the wearability of emulsion paint, and water can be after by thermal evaporation
Pore in material enhances adsorption capacity, kills two birds with one stone.
2) water, is warming up to 80-100 DEG C, under agitation by the bletilla striata powder sieved with 100 mesh sieve, the corn sieved with 100 mesh sieve
Starch is at the uniform velocity added in water in 5-15min；It is cooled to 70-80 DEG C, under agitation successively by acrylic emulsion, air
Purification particle is added in water.
Bletilla striata powder, this kind of natural material of cornstarch are selected, it is environmentally protective.By bletilla striata powder, cornstarch first in higher temperatures
The lower stirring of degree, the reason is that at such a temperature, having a large amount of colloid substance that can be released in bletilla striata powder, then cools down,
Preferable vicidity and mobility can be made it have.Due to the hydrophobicity of air purification particle, cause it in aqueous dispersion
It is poor, and bletilla striata powder and cornstarch have stronger cladding ability after being dissolved in water at high temperature, play the role of binder, energy
It is enough that air purification particle is wrapped up and it is assisted to disperse.And in the painting process of emulsion paint, bletilla striata powder forms sediment with corn
The film forming of powder is preferable, can promote the flatness and film forming of emulsion paint.
3) batch mixing, is carried out to phenoxy resin and glutaraldehyde, under agitation by after batch mixing material and silica flour add
It is added in the water of step 2).
Glutaraldehyde and phenoxy resin play the role of binder, in addition, glutaraldehyde also possesses sterilizing ability, it can be to air
It sterilizes, phenoxy resin can also promote the water resistance of emulsion paint and resistance to shrinkage, make emulsion paint scrubbing resistance and be not easy to shrink
Cracking.
4), under heat-retaining condition, antifoaming agent and dispersant is added, 20-30min is dispersed with stirring, is finally made after grinding
Obtain the acrylic latex coating with air-cleaning function.
As the preferred of the technical program, the grain size of the air purification particle is 400-1000 microns.
As the preferred of the technical program, half carbonization process of the plural gel is：By plural gel with 8-12 DEG C/
The rate of min is warming up to 200-300 DEG C, keeps 30-50min；Then 400-500 DEG C is warming up to 18-22 DEG C of rate again.
Half is carried out as stated above to carbonize, and on the one hand can be enhanced the intensity of product, on the other hand can partly carbonized
Pore is carried out in journey, is improved and is contained porosity.
As the preferred of the technical program, the preparation method of the activated carbon composite colloidal sol is：By furfural, water soluble phenolic resin
Fat, carbon nanotube, carboxymethyl cellulose, brucite fiber, sodium bicarbonate and water 3-5 in mass ratio:1:0.3-0.5:0.1-
0.2:0.03-0.05:0.01-0.03:100 mixing, obtain the first mixed liquor after stirring evenly, under agitation will be a concentration of
The ammonium hydroxide of 0.25-0.75mol/L is added drop-wise to the rate of 10-20mL/min in the first mixed liquor, and the first mixed liquor is made to be in neutrality；
Then 8-24h is reacted at 65-75 DEG C, activated carbon composite colloidal sol is made.
Carbon nanotube is in hollow tubular, and the duct with nano-scale is not influencing activated carbon composite colloidal sol one-tenth porosity as possible
Under the premise of, the intensity of material can be improved, brucite fiber can improve the toughness of material.Sodium bicarbonate being capable of pore.
As the preferred of the technical program, the preparation method of the TiO 2 sol is：By butyl titanate, anhydrous second
Alcohol, sodium bicarbonate in mass ratio 1:20-40:0.1-0.3 is mixed, and obtains the second mixed liquor；By the hydrochloric acid solution of 1-2mol/L, nothing
Water-ethanol and water 4-6 by volume:8-16:5 are mixed, and third mixed liquor is obtained；Under agitation by third mixed liquor
It is added drop-wise to the rate of 8-12mL/min in the second isometric mixed liquor；Then 12-24h is reacted at 40-50 DEG C, obtains two
Titanium oxide sol.
It is compared with the prior art, the beneficial effects of the invention are as follows：The propylene yogurt with air-cleaning function of the present invention
Shellac varnish has air-cleaning function, and adsorption capacity is big, and purification timeliness is long, good air purification effect.Simultaneously should have preferably at
Film property and resistance to soiling.
Specific implementation mode
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of acrylic latex coating with air-cleaning function, includes the component of following mass parts：
Solid content is 50 parts of the acrylic emulsion of 45wt%, 5 parts of silica flour, 1.5 parts of phenoxy resin, 3 parts of bletilla striata powder, corn
2 parts of starch, 0.5 part of glutaraldehyde, 3 parts of air purification particle, 0.05 part of vegetable oil, 0.05 part of neopelex, water 35
Part, 30 parts of pigment.
The preparation process of the acrylic latex coating with air-cleaning function of the present embodiment is：
1), the preparation of activated carbon composite colloidal sol：By furfural, water soluble phenol resin, carbon nanotube, carboxymethyl cellulose, water magnesium
Mineral wool, sodium bicarbonate and water in mass ratio 4:1:0.4:0.15:0.04:0.02:100 mixing, first is obtained after stirring evenly
The ammonium hydroxide of a concentration of 0.5mol/L is added drop-wise to the rate of 15mL/min in the first mixed liquor by mixed liquor under agitation,
The first mixed liquor is set to be in neutrality；Then 16h is reacted at 70 DEG C, activated carbon composite colloidal sol is made.
The preparation of TiO 2 sol：By butyl titanate, absolute ethyl alcohol, sodium bicarbonate in mass ratio 1:30:0.2 mixing,
Obtain the second mixed liquor；By the hydrochloric acid solution, absolute ethyl alcohol and water of 1.5mol/L by volume 5:12:5 are mixed, and obtain
Three mixed liquors；Third mixed liquor is added drop-wise to the rate of 10mL/min in the second isometric mixed liquor under agitation；
Then 18h is reacted at 45 DEG C, obtains TiO 2 sol.
By activated carbon composite colloidal sol, TiO 2 sol, aluminium hydroxide in mass ratio 60:40:2 are uniformly mixed, and obtain compound molten
Glue after complex sol is aged 54h, carries out solvent to complex sol with excessive absolute ethyl alcohol and replaces 36h, then with excessive
N-hexane carries out solvent to complex sol and replaces 36h, then removes n-hexane, obtains plural gel；To plural gel at 80 DEG C
Lower dry 35min；Then plural gel is warming up to 150 DEG C with the rate of 10 DEG C/min, keeps 40min；Then again with 20 DEG C
Rate be warming up to 450 DEG C, obtain half carbide, after half carbide is cleaned, is dry, crushing, obtain half charing aeroge
Grain.It is 2 by volume by trim,ethylchlorosilane and n-hexane:10 mixing, obtain hydrophobically modified liquid, will half charing aerogel particle
It is dispersed in the hydrophobically modified liquid of its 7.5 times of quality, it is net that the air that grain size is 400-1000 microns is made in the modified 6h at 35 DEG C
Change particle.
2) water, is warming up to 90 DEG C, under agitation by the bletilla striata powder sieved with 100 mesh sieve, the cornstarch sieved with 100 mesh sieve
At the uniform velocity it is added in water in 10min；75 DEG C are cooled to, under agitation successively by acrylic emulsion, air purification particle
It is added in water
3) batch mixing, is carried out to phenoxy resin and glutaraldehyde, under agitation by after batch mixing material and silica flour add
It is added in the water of step 2).
4), under heat-retaining condition, antifoaming agent and dispersant is added, 25min is dispersed with stirring, tool is finally made after grinding
There is the acrylic latex coating of air-cleaning function.
Embodiment 2
A kind of acrylic latex coating with air-cleaning function, includes the component of following mass parts：
Solid content is 45 parts of the acrylic emulsion of 50wt%, 6 parts of silica flour, 1 part of phenoxy resin, 4 parts of bletilla striata powder, corn shallow lake
3 parts of powder, 0.25 part of glutaraldehyde, 2 parts of air purification particle, 0.04 part of mineral oil, 0.04 part of polyacrylamide, 40 parts of water, pigment
20 parts.
The preparation process of the acrylic latex coating with air-cleaning function of the present embodiment is：
1), the preparation of activated carbon composite colloidal sol：By furfural, water soluble phenol resin, carbon nanotube, carboxymethyl cellulose, water magnesium
Mineral wool, sodium bicarbonate and water in mass ratio 3:1:0.3:0.1:0.03:0.01:100 mixing, it is mixed to obtain first after stirring evenly
Liquid is closed, the ammonium hydroxide of a concentration of 0.25mol/L is added drop-wise to the rate of 10mL/min in the first mixed liquor under agitation, is made
First mixed liquor is in neutrality；Then 8h is reacted at 65 DEG C, activated carbon composite colloidal sol is made.
The preparation of TiO 2 sol：By butyl titanate, absolute ethyl alcohol, sodium bicarbonate in mass ratio 1:20:0.1 mixing,
Obtain the second mixed liquor；By the hydrochloric acid solution, absolute ethyl alcohol and water of 1mol/L by volume 4:8:5 are mixed, and third is obtained
Mixed liquor；Third mixed liquor is added drop-wise to the rate of 8mL/min in the second isometric mixed liquor under agitation；Then
It is reacted at 40 DEG C for 24 hours, obtains TiO 2 sol.
By activated carbon composite colloidal sol, TiO 2 sol, aluminium hydroxide in mass ratio 50:30:1 is uniformly mixed, and obtains compound molten
Glue after complex sol is aged 36h, carries out solvent displacement for 24 hours, then with excessive with excessive absolute ethyl alcohol to complex sol
N-hexane carries out solvent to complex sol and replaces 12h, then removes n-hexane, obtains plural gel；To plural gel at 60 DEG C
Lower dry 40min；Then plural gel is warming up to 200 DEG C with the rate of 8 DEG C/min, keeps 50min；Then again with 18 DEG C
Rate is warming up to 400 DEG C, obtains half carbide, and half carbide is cleaned, is dry, after crushing, obtains half charing aerogel particle.
It is 1 by volume by trim,ethylchlorosilane and n-hexane:10 mixing, obtain hydrophobically modified liquid, will half charing aerogel particle point
It is dissipated in the hydrophobically modified liquid of its 5 times of quality, the air purification grain that grain size is 400-1000 microns is made in the modified 8h at 30 DEG C
Son.
2) water, is warming up to 80 DEG C, under agitation by the bletilla striata powder sieved with 100 mesh sieve, the cornstarch sieved with 100 mesh sieve
At the uniform velocity it is added in water in 15min；70 DEG C are cooled to, under agitation successively by acrylic emulsion, air purification particle
It is added in water.
3) batch mixing, is carried out to phenoxy resin and glutaraldehyde, under agitation by after batch mixing material and silica flour add
It is added in the water of step 2).
4), under heat-retaining condition, antifoaming agent and dispersant is added, 20min is dispersed with stirring, tool is finally made after grinding
There is the acrylic latex coating of air-cleaning function.
Embodiment 3
A kind of acrylic latex coating with air-cleaning function, includes the component of following mass parts：
Solid content is 55 parts of the acrylic emulsion of 50wt%, 4 parts of silica flour, 2 parts of phenoxy resin, 2 parts of bletilla striata powder, corn shallow lake
1 part of powder, 0.75 part of glutaraldehyde, 4 parts of air purification particle, 0.06 part of silicone oil, 0.06 part of polyethylene glycol, 30 parts of water, 40 parts of pigment.
The preparation process of the acrylic latex coating with air-cleaning function of the present embodiment is：
1), the preparation of activated carbon composite colloidal sol：By furfural, water soluble phenol resin, carbon nanotube, carboxymethyl cellulose, water magnesium
Mineral wool, sodium bicarbonate and water in mass ratio 5:1:0.5:0.2:0.05:0.03:100 mixing, it is mixed to obtain first after stirring evenly
Liquid is closed, the ammonium hydroxide of a concentration of 0.75mol/L is added drop-wise to the rate of 20mL/min in the first mixed liquor under agitation, is made
First mixed liquor is in neutrality；Then 8h is reacted at 75 DEG C, activated carbon composite colloidal sol is made.
The preparation of TiO 2 sol：By butyl titanate, absolute ethyl alcohol, sodium bicarbonate in mass ratio 1:40:0.3 mixing,
Obtain the second mixed liquor；By the hydrochloric acid solution, absolute ethyl alcohol and water of 2mol/L by volume 6:16:5 are mixed, and third is obtained
Mixed liquor；Third mixed liquor is added drop-wise to the rate of 12mL/min in the second isometric mixed liquor under agitation；So
12h is reacted at 50 DEG C afterwards, obtains TiO 2 sol.
By activated carbon composite colloidal sol, TiO 2 sol, aluminium hydroxide in mass ratio 70:50:3 are uniformly mixed, and obtain compound molten
Glue after complex sol is aged 72h, carries out solvent to complex sol with excessive absolute ethyl alcohol and replaces 48h, then with excessive
N-hexane carries out solvent to complex sol and replaces 36h, then removes n-hexane, obtains plural gel；To plural gel at 100 DEG C
Lower dry 30min；Then plural gel is warming up to 300 DEG C with the rate of 12 DEG C/min, keeps 30min；Then again with 22 DEG C
Rate be warming up to 500 DEG C, obtain half carbide, after half carbide is cleaned, is dry, crushing, obtain half charing aeroge
Grain.It is 3 by volume by trim,ethylchlorosilane and n-hexane:10 mixing, obtain hydrophobically modified liquid, will half charing aerogel particle
It is dispersed in the hydrophobically modified liquid of its 10 times of quality, it is net that the air that grain size is 400-1000 microns is made in the modified 4h at 40 DEG C
Change particle.
2) water, is warming up to 100 DEG C, the bletilla striata powder sieved with 100 mesh sieve, the corn sieved with 100 mesh sieve form sediment under agitation
Powder is at the uniform velocity added in water in 5min；80 DEG C are cooled to, under agitation successively by acrylic emulsion, air purification particle
It is added in water.
3) batch mixing, is carried out to phenoxy resin and glutaraldehyde, under agitation by after batch mixing material and silica flour add
It is added in the water of step 2).
4), under heat-retaining condition, antifoaming agent and dispersant is added, 30min is dispersed with stirring, tool is finally made after grinding
There is the acrylic latex coating of air-cleaning function.
Acrylic latex coating produced by the present invention with air-cleaning function, absorption timeliness are 3-5, and
The adsorption efficiency of 35-45% can also be kept after 5 years.
Raw materials used in the present invention, equipment is unless otherwise noted the common raw material, equipment of this field；In the present invention
Method therefor is unless otherwise noted the conventional method of this field.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit still falls within the technology of the present invention side to any simple modification, change and equivalent transformation made by above example
The protection domain of case.
Claims (8)
1. a kind of acrylic latex coating with air-cleaning function, it is characterised in that：Include the component of following mass parts：
45-55 parts of acrylic emulsion,
4-6 parts of silica flour,
1-2 parts of phenoxy resin,
2-4 parts of bletilla striata powder,
1-3 parts of cornstarch,
0.25-0.75 parts of glutaraldehyde,
2-4 parts of air purification particle,
0.04-0.06 parts of antifoaming agent,
0.04-0.06 parts of dispersant,
30-40 parts of water；
The preparation method of the acrylic latex coating with air-cleaning function, step are：
1), by activated carbon composite colloidal sol, TiO 2 sol, aluminium hydroxide 50-70 in mass ratio:30-50:1-3 is uniformly mixed, and is obtained
Complex sol after complex sol is aged 36-72h, carries out solvent to complex sol with excessive absolute ethyl alcohol and replaces 24-48h,
Then solvent is carried out to complex sol with excessive n-hexane and replaces 12-36h, then removed n-hexane, obtain plural gel；It is right
Plural gel dry 30-40min at 60-100 DEG C；Then half is carried out between 200-500 DEG C to carbonize, obtain half carbide,
Half carbide is cleaned, is dry, after crushing, obtains half charing aerogel particle；Trim,ethylchlorosilane and n-hexane are pressed into volume
Than for 1-3:10 mixing, obtain hydrophobically modified liquid, and half charing aerogel particle is dispersed to the hydrophobically modified of its 5-10 times of quality
In liquid, modified 4-8h, is made air purification particle at 30-40 DEG C；
2) water, is warming up to 80-100 DEG C, under agitation by the bletilla striata powder sieved with 100 mesh sieve, the cornstarch sieved with 100 mesh sieve
At the uniform velocity it is added in water in 5-15min；It is cooled to 70-80 DEG C, under agitation successively by acrylic emulsion, air purification
Particle is added in water；
3) batch mixing, is carried out to phenoxy resin and glutaraldehyde, under agitation by after batch mixing material and silica flour be added to
In the water of step 2)；
4), under heat-retaining condition, antifoaming agent and dispersant is added, 20-30min is dispersed with stirring, tool is finally made after grinding
There is the acrylic latex coating of air-cleaning function.
2. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that further include
20-40 parts of pigment.
3. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that the defoaming
Agent is selected from vegetable oil, mineral oil, silicone oil；The dispersant is selected from neopelex, polyacrylamide, polyethylene glycol.
4. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that the propylene
The solid content of yogurt liquid is 40-50wt%.
5. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that the air
The grain size for purifying particle is 400-1000 microns.
6. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that described compound
Half carbonization process of gel is：Plural gel is warming up to 200-300 DEG C with the rate of 8-12 DEG C/min, keeps 30-50min；
Then 400-500 DEG C is warming up to 18-22 DEG C of rate again.
7. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that described compound
The preparation method of charcoal colloidal sol is：By furfural, water soluble phenol resin, carbon nanotube, carboxymethyl cellulose, brucite fiber, carbon
Sour hydrogen sodium and water 3-5 in mass ratio:1:0.3-0.5:0.1-0.2:0.03-0.05:0.01-0.03:100 mixing, stir evenly
After obtain the first mixed liquor, under agitation by the ammonium hydroxide of a concentration of 0.25-0.75mol/L with the rate of 10-20mL/min
It is added drop-wise in the first mixed liquor, the first mixed liquor is made to be in neutrality；Then 8-24h is reacted at 65-75 DEG C, it is molten that activated carbon composite is made
Glue.
8. a kind of acrylic latex coating with air-cleaning function as described in claim 1, which is characterized in that the dioxy
Change titanium colloidal sol preparation method be：By butyl titanate, absolute ethyl alcohol, sodium bicarbonate in mass ratio 1:20-40:0.1-0.3 is mixed,
Obtain the second mixed liquor；By the hydrochloric acid solution, absolute ethyl alcohol and water of 1-2mol/L 4-6 by volume:8-16:5 are mixed, and are obtained
To third mixed liquor；Third mixed liquor is added drop-wise to the second isometric mixing with the rate of 8-12mL/min under agitation
In liquid；Then 12-24h is reacted at 40-50 DEG C, obtains TiO 2 sol.
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Citations (5)
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|---|---|---|---|---|
| CN1544558A (en) * | 2003-11-27 | 2004-11-10 | 上海大学 | Environment protectional photocatalyzed paint for inner wall |
| CN1557891A (en) * | 2004-01-15 | 2004-12-29 | 中山大学 | Light-catalyzed air-cleaning water environmental protection paint for inner wall |
| CN1916093A (en) * | 2005-08-17 | 2007-02-21 | 厦门东顺涂料有限公司 | Dope with negative ion function for air purification, and prepartion method |
| CN101638526A (en) * | 2008-07-30 | 2010-02-03 | 北新集团建材股份有限公司 | Coating with function of eliminating formaldehyde and preparation technology thereof |
| CN104031499A (en) * | 2014-06-09 | 2014-09-10 | 青岛兴国涂料有限公司 | Water-based air purification paint and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544558A (en) * | 2003-11-27 | 2004-11-10 | 上海大学 | Environment protectional photocatalyzed paint for inner wall |
| CN1557891A (en) * | 2004-01-15 | 2004-12-29 | 中山大学 | Light-catalyzed air-cleaning water environmental protection paint for inner wall |
| CN1916093A (en) * | 2005-08-17 | 2007-02-21 | 厦门东顺涂料有限公司 | Dope with negative ion function for air purification, and prepartion method |
| CN101638526A (en) * | 2008-07-30 | 2010-02-03 | 北新集团建材股份有限公司 | Coating with function of eliminating formaldehyde and preparation technology thereof |
| CN104031499A (en) * | 2014-06-09 | 2014-09-10 | 青岛兴国涂料有限公司 | Water-based air purification paint and preparation method thereof |
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