CN109233476A - A kind of Side fascia heat insulation coating and preparation method thereof - Google Patents
A kind of Side fascia heat insulation coating and preparation method 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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/04—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09D127/06—Homopolymers or copolymers of vinyl chloride
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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
- 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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- 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
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C08K3/22—Oxides; Hydroxides of metals
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- C08K2003/2241—Titanium dioxide
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Abstract
The present invention discloses a kind of Side fascia heat insulation coating and preparation method thereof.The heat insulation coating includes following components according to the mass fraction: vinyl chloride/100-130 parts of ethylene acetate/acrylic acid ester copolymer emulsion, 20-40 parts of silane coupling agent, 6-18 parts of rutile type titanium white, 5-10 parts of Lauryl Alcohol ester, 3-7 parts of modified alta-mud, 2-5 parts of nano-antibacterial polymer microsphere, 0.1-0.8 parts of curing agent, 0.6-1.3 parts of anti-algae agent, 40-70 parts of tetrahydrofuran；Preparation method includes emulsion particle preparation, the anti-algae mixed liquor preparation of antibacterial, mixed emulsion preparation, heat insulation coating preparation.Hydrophobicity, the chemical resistance of Side fascia heat insulation coating of the invention are preferable, also have the performance of good inhibition mould, algal grown after absorbing moisture, keep the low thermal conductivity and heat insulation effect of coating.
Description
Technical field
The present invention relates to external-wall heat-insulation material technical fields, and in particular to a kind of Side fascia heat insulation coating and its preparation side
Method.
Background technique
With the continuous quickening of town and country construction paces, air-conditioning, heating system installation amount be continuously increased so that building energy consumption
Ratio be continuously increased, the meaning of building energy conservation is more and more important, and the heat-insulation and heat-preservation of external wall is the important ring of building energy conservation
Section.Coating applied to exterior wall concrete or Side fascia is exposed in atmospheric environment, by wind, solarization, the weathers such as drench with rain
Natural trend, can make coating occur dusting, discoloration, peeling, spot phenomena such as and lose original decorative effect, to influence
The beauty of building appearance.Especially in annual precipitation 1000mm or more, most hot moon relative humidity be greater than 70% area, outside
Wall coating, which is easy to absorb the moisture content in air the water content for leading to material surface, to be continuously increased, and humidity reaches 30% or more
Afterwards, the environment that can be suitable for is provided for the growth and breeding of algae, so that exterior wall mould growth and algae.
At present about the heat insulation coating of Side fascia mainly from lotion, filler, auxiliary agent screening and its mutually dispersion, it is stable
Performance is improved in level.The Chinese invention patent of Authorization Notice No. CN101914329B discloses a kind of nano multifunctional outer wall
Thermal insulation coatings are prepared by nanometer aluminium silicate, calcium silicate nanowire, acrylate and vinyl acetate emulsion or styrene-acrylic emulsion, nanometer titanium dioxide, a variety of auxiliary agents
It forms, has strong good insulation characteristic, adhesive force, washability and self-cleaning antibacterial good.Application number
The patent of CN03118029.9 is disclosed with nano-titanium dioxide, nano zine oxide, nano silica, sericite, kaolin
For main functional component, multifunctional exterior wall coating is prepared, it is more to improve ageing resistance, washability ability, antibacterial etc.
Kind performance, but insulation characteristic is to be improved, while production process step is more, technique is more complex.
Inventor is the study found that above-mentioned exterior-wall heat insulation coating material in the prior art, and Nano type filler inside is in loose
Porous structure, hydrophobicity is poor, is easy to absorb a large amount of moisture content, and the raising of water content accelerates the cracking dusting of coating and mould
The growth of Homonemeae, reduces thermal coefficient, influences the heat insulation effect to building.It is larger in precipitation that therefore, it is necessary to one kind
Area can effectively inhibit mould, algal grown and holding compared with the exterior-wall heat insulation coating of low thermal conductivity.
Summary of the invention
In order to overcome above-mentioned technical problem, the purpose of the present invention is to provide a kind of Side fascia heat insulation coating and its preparations
Method is main with chemically-resistant, vinyl chloride/ethylene acetate/acrylic acid ester ternary copolymer emulsion that fire-retardant, swelling behavior is excellent
The good emulsion particle of plasticity, scour resistance, lotion grain is prepared using modified alta-mud to its plasticization and modification in ingredient
After son mix with antibacterial anti-algae mixed liquor, then with curing agent, coalescing agent grind ultrasound and obtain, the Side fascia heat insulation coating it is thin
It is aqueous, chemical resistance is preferable, prevent the absorption of moisture, while it is raw also to have after absorbing moisture good inhibition mould, algae
Long performance keeps the low thermal conductivity and heat insulation effect of coating.
The purpose of the present invention can be achieved through the following technical solutions:
The present invention provides a kind of Side fascia heat insulation coatings, according to the mass fraction, including following components: vinyl chloride/acetic acid
Vinyl acetate/100-130 parts of acrylate copolymer emulsion, 20-40 parts of silane coupling agent, 6-18 parts of rutile type titanium white, 12
5-10 parts of carbon alcohol ester, 3-7 parts of modified alta-mud, 2-5 parts of nano-antibacterial polymer microsphere, 0.1-0.8 parts of curing agent, anti-algae agent
0.6-1.3 parts, 40-70 parts of tetrahydrofuran；
The vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion solid content is 46 ± 2%, and viscosity is less than
100Pas, glass transition temperature are 5 DEG C；
The preparation method of the nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 20-40 parts by weight is added to the ethyl methacrylate monomer of 80-120 parts by weight
In, ultrasonic disperse 2-4min obtains mixed liquor；
2) fatty alcohol polyoxyethylene ether, the peroxidating first of 0.2-0.8 parts by weight of 5-8 parts by weight are added into mixed liquor
Ethyl ketone forms reaction system；
3) zinc ricinate of 1-3 parts by weight is added in the water of 260 parts by weight, stir evenly to be formed it is lipophilic water-soluble
Lipophilic aqueous solution is added in the reaction system of step 2) by liquid, and 125 DEG C of stirring 30min, ultrasonic emulsification 2-6min are obtained
The mixed emulsion of average grain diameter 300-500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, obtains
To the nano-antibacterial polymer microsphere.
Side fascia heat insulation coating of the invention chooses the chloroethene for being commonly used for water paint base-material when designing screening first
Alkene/ethylene acetate/acrylic acid ester ternary copolymer emulsion is primary raw material, by the base product of esters of acrylic acid fabric coating
Middle introducing vinyl chloride monomer, not only reduces cost, also imparts distinctive wear resistance, chemical resistance, low water-swellable
Property and flame retardant type.But the hydrophobicity of the copolymer emulsion is poor, and swelling, scour resistance, antibacterial suppression mouldiness are easy to happen after water suction
It can substantially reduce.Mixed and modified using superior moldability, close-burning modified alta-mud and copolymer emulsion, modified alta-mud is in height
Swelling absorption is carried out to copolymer emulsion under the conditions of pressure, so that bentonite is to vinyl chloride/ethylene acetate/acrylic acid ester copolymer shape
It is wrapped up at absorption, while absorption package is carried out to vinyl chloride remaining in lotion, vinylacetate, acrylate monomer, so that
Copolymer emulsion is not easy water absorption and swelling, improves the mechanical strength of copolymer emulsion and resists and scrubs performance.Silane coupling agent promotes quilt
Copolymer emulsion after bentonite adsorption package is copolymerized coupling, the webbed macromolecular structure of shape.Common filler in coating is added
Rutile type titanium white will not be chemically reacted with copolymer emulsion, is filled into the gap of macromolecular structure, can improve coating
Tinting strength, tinting power, covering power, weatherability, heat resistance and chemical stability.Using good 12 carbon of coalescing agent of hydrolytic stability
Alcohol ester can be caused and more efficiently be merged, not influenced the painting being finally prepared with the polymer and filler grain in softening lotion
The stability and hydrophobicity of layer.
The present invention crosses and free hydroxyl in the preparation method of nano-antibacterial polymer microsphere using by oleophylic structural modification
The oil-soluble titanium dioxide that base greatly reduces mixes ultrasound with ethyl methacrylate monomer similar in polarity, so that several two
Oxidation titanium molecule is wrapped up by ethyl methacrylate monomer, and size is big, and infrared ray and ultraviolet light are not easy to penetrate, and package is close；Packet
Structure after wrapping up in is drawn under the action of nonionic surfactant fatty alcohol polyoxyethylene ether, initiator methyl ethyl ketone peroxide
Hair polymerization, then ultrasound is mixed with deodorizing antibiotic agent zinc ricinate, so that zinc ricinate is uniformly mixed with paradigmatic structure, formed
Polymer microsphere can substantially improve the oleophyllie hydrophobic performance of coating, avoid the bacterium being mixed into moisture content, algae substances from entering
Coat inside cooperates anti-algae agent, can greatly improve the anti-algae performance of coating.
As a further solution of the present invention, the method for preparing modified bentonite the following steps are included:
1) it pre-processes: bentonite original soil being mixed with 6% HCl solution according to solid-to-liquid ratio 1:12,120 DEG C of heating stirrings
40min, cooling, filtering purify water washing, dry, and 520 DEG C of roastings obtain pretreatment bentonite；
2) twice-modified: pre- modified alta-mud is uniformly mixed with the ferrous sulfate solution of 30wt% according to solid-to-liquid ratio 1:8,
Obtain mixed serum, 80 DEG C of dry 12h, 520 DEG C of calcining 2h, 560 DEG C of calcining 1h, 600 DEG C of calcining 20min are obtained twice-modified
Bentonite.
In bentonite preparation method of the invention, first using the Ca between hydrochloric acid solution displacement bentonite bed2+、Mg2+、Al3+
Equal metal ions are dissolved out in the form of soluble-salt, are dredged its duct, conducive to the diffusion of adsorption molecule, are improved purity；
Reuse later ferrous sulfate solution, calcining it is twice-modified, Fe can be passed through2+Ionic compartmentation hydrogen ion is formed with Van der Waals force
In conjunction with organic double compound bentonite, the drying and calcining of different temperatures period, bentonite can successively lose surface water, skeleton knot
The Ji Wu pollutant in combination water, duct in structure, causes porosity to increase, and structure is more loose, and specific surface area becomes larger, and increases
To the absorption property of copolymer emulsion.
As a further solution of the present invention, the silane coupling agent is poly- methyltriethoxy silane oxygen alkane, poly- methyl three
One of methoxy radical siloxane, cyclomethicone, amino silicone, polymethylphenylsiloxane or a variety of mixtures.
As a further solution of the present invention, the anti-algae agent is zinc pyrithione, N- octyl-isothiazolinone, 4,5-
One of two chloro- N- octyl -4- isothiazoline -3- ketone, 1,2- benzisothiazole-3-ketone or a variety of mixtures.
As a further solution of the present invention, the curing agent is diglycidyl ether, 650 Versamids, ultra micro
Activity dicyandiamide is formed according to mass ratio 1:0.6:0.4 mixed preparing.
The present invention also provides the preparation methods of above-mentioned Side fascia heat insulation coating, comprising the following steps:
1) prepared by emulsion particle: weighing vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion, modification according to parts by weight
Bentonite is added in the reaction flask with mechanical stirring, condenser pipe and nitrogen protection, and nitrogen discharge reaction flask is passed through before reaction
In gas, being re-filled with nitrogen to pressure of the inside of a bottle is 1MPa, and after 70 DEG C of heating reaction 3h, discharge gas is cooled to room temperature, obtains
Emulsion particle；
2) the anti-algae mixed liquor preparation of antibacterial: nano-antibacterial polymer microsphere is added in dispersion machine, is added while stirring
Anti- algae agent addition is finished in 3-5min, a part of tetrahydrofuran is added dropwise under 20 DEG C of water bath conditions, obtains thick by anti-algae agent
The anti-algae mixed liquor of antibacterial；
3) prepared by mixed emulsion: by emulsion particle, the anti-algae mixed liquor of antibacterial, silane coupling agent, rutile type titanium white, remaining
Remaining tetrahydrofuran is added sequentially in reaction kettle, and 50 DEG C of stirring 40min are poured into and dispersed 20min in dispersion machine, obtains mixing cream
Liquid；
4) prepared by heat insulation coating: sequentially adding curing agent, Lauryl Alcohol ester into mixed emulsion, is ground to after mixed at high speed
Slurry fineness is less than 50 μm, then is placed in ultrasound 20min under the supersonic frequency of 200-400W, obtains the heat insulation coating.
The preparation method of Side fascia heat insulation coating of the invention, first using modified alta-mud to vinyl chloride/vinyl acetate
Ester/acrylate copolymer emulsion heats reaction under nitrogen pressure, so that modified alta-mud adsorbs copolymer emulsion, obtains
So that copolymer emulsion is not easy water absorption and swelling, at the same improve copolymer emulsion mechanical strength, it is anti-scrub, self-cleaning performance；So
It is dissolved in organic solvent tetrahydrofuran using nano-antibacterial polymer microsphere and anti-algae agent afterwards, generates the mixing of the anti-algae of antibacterial
Liquid；Mixed emulsion is prepared again, is finally mixed with curing agent, film forming agent Lauryl Alcohol ester, is obtained after ultrasound.Preparation method is simple,
Without harsh conditions, each ingredient is uniformly dispersed, and quality is uniform.
Beneficial effects of the present invention:
1, Side fascia heat insulation coating of the invention chooses vinyl chloride/vinylacetate/the third for being commonly used for water paint base-material
Olefin(e) acid ester ternary copolymer emulsion is primary raw material, is mixed using superior moldability, close-burning modified alta-mud with copolymer emulsion
Modified, modified alta-mud carries out swelling absorption to copolymer emulsion under high pressure, so that bentonite is to vinyl chloride/vinyl acetate
Ester/acrylate copolymer forms absorption package, while to vinyl chloride remaining in lotion, vinylacetate, acrylate list
Body carries out absorption package, so that copolymer emulsion is not easy water absorption and swelling, while improving the mechanical strength of copolymer emulsion and resisting and washing
Brush performance；Silane coupling agent promotes the copolymer emulsion copolymerization coupling after being wrapped up by bentonite adsorption, the webbed macromolecular knot of shape
Structure；Filler rutile type titanium white will not be chemically reacted with copolymer emulsion, is filled into the gap of macromolecular structure, meeting
Improve tinting strength, tinting power, covering power, weatherability, heat resistance and the chemical stability of coating；The good coalescing agent ten of hydrolytic stability
Two carbon alcohol esters can be caused and more efficiently be merged, not influenced to be finally prepared with the polymer and filler grain in softening lotion
Coating stability and hydrophobicity.The Side fascia heat insulation coating, before keeping compared with low thermal conductivity and good heat preservation effect
It puts, hydrophobicity, chemical resistance are improved, while also having good inhibition mould, algal grown after absorbing moisture
Performance.
2, it in the preparation of nano-antibacterial polymer microsphere, is crossed and free hydroxyl group greatly reduces using by oleophylic structural modification
Oil-soluble titanium dioxide, ultrasound is mixed with ethyl methacrylate monomer similar in polarity, so that several titania molecules
It is wrapped up by ethyl methacrylate monomer；Structure after package is in fatty alcohol polyoxyethylene ether, initiator methyl ethyl ketone peroxide
Under the action of, cause polymerization, then ultrasound is mixed with deodorizing antibiotic agent zinc ricinate, the polymer microsphere of formation can change significantly
The oleophyllie hydrophobic performance of kind coating, avoids the bacterium being mixed into moisture content, algae substances from entering coat inside, cooperates anti-algae agent, energy
Enough greatly improve the anti-algae performance of coating.
3, modified alta-mud preparation process uses the Ca between hydrochloric acid solution displacement bentonite bed2+、Mg2+、Al3+Equal metals from
Son is dissolved out in the form of soluble-salt, is dredged its duct, conducive to the diffusion of adsorption molecule, is improved purity；Make again later
It is twice-modified with ferrous sulfate solution, calcining, pass through Fe2+Ionic compartmentation hydrogen ion, formation are combined organic multiple with Van der Waals force
Object bentonite, the drying and calcining of different temperatures period are closed, bentonite can successively lose surface water, the combination in skeleton structure
Ji Wu pollutant in water, duct, causes porosity to increase, and structure is more loose, and specific surface area becomes larger, and increases to copolymer emulsion
Absorption property and coating deodorization, self-cleaning performance.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of Side fascia heat insulation coating, the ingredient including following weight: vinyl chloride/ethylene acetate/acrylic acid ester copolymerization
The poly- methyl trimethoxy oxygroup siloxanes 32g of lotion 116g, silane coupling agent, rutile type titanium white 13g, Lauryl Alcohol ester 6g, change
Property bentonite 5g, nano-antibacterial polymer microsphere 4g, curing agent 0.5g, anti-algae agent 1,2- benzisothiazole-3-ketone 0.9g, four
Hydrogen furans 62g.Wherein, vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion solid content is 46 ± 2%, and viscosity is less than
100Pas, glass transition temperature are 5 DEG C.Curing agent is activity by diglycidyl ether, 650 Versamids, ultra micro
Dicyandiamide is formed according to mass ratio 1:0.6:0.4 mixed preparing.
The preparation method of nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 30g is added in the ethyl methacrylate monomer of 115g, ultrasonic disperse 2-
4min obtains mixed liquor；
2) methyl ethyl ketone peroxide of fatty alcohol polyoxyethylene ether, 0.4g that 6g is added into mixed liquor forms reactant
System；
3) zinc ricinate of 1.5g is added in the water of 260g, stirs evenly to form lipophilic aqueous solution, by oleophylic
Property aqueous solution is added in the reaction system of step 2), and 125 DEG C of stirring 30min, ultrasonic emulsification 2-6min obtain average grain diameter
The mixed emulsion of 300-500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, obtains
To the nano-antibacterial polymer microsphere.
Wherein, method for preparing modified bentonite the following steps are included:
1) it pre-processes: bentonite original soil being mixed with 6% HCl solution according to solid-to-liquid ratio 1:8,120 DEG C of heating stirrings
40min, cooling, filtering purify water washing, and dry, 520 DEG C of roastings obtain pre- modified alta-mud；
2) twice-modified: pre- modified alta-mud is uniformly mixed with the ferrous sulfate solution of 30wt% according to solid-to-liquid ratio 1:8,
Obtain mixed serum, 80 DEG C of dry 12h, 520 DEG C of calcining 2h, 560 DEG C of calcining 1h, 600 DEG C of calcining 20min are obtained twice-modified
Bentonite.
The preparation method of the present embodiment Side fascia heat insulation coating, comprising the following steps:
1) prepared by emulsion particle: weighing vinyl chloride/vinyl acetate/acrylate copolymer emulsion, modification according to above-mentioned weight
Bentonite is added in the reaction flask with mechanical stirring, condenser pipe and nitrogen protection, and nitrogen discharge reaction flask is passed through before reaction
In gas, being re-filled with nitrogen to pressure of the inside of a bottle is 1MPa, and after 70 DEG C of heating reaction 3h, discharge gas is cooled to room temperature, obtains
Emulsion particle；
2) the anti-algae mixed liquor preparation of antibacterial: nano-antibacterial polymer microsphere is added in dispersion machine, is added while stirring
Anti- algae agent addition is finished in 3-5min, a part of tetrahydrofuran is added dropwise under 20 DEG C of water bath conditions, obtains thick by anti-algae agent
The anti-algae mixed liquor of antibacterial；
3) prepared by mixed emulsion: by emulsion particle, the anti-algae mixed liquor of antibacterial, silane coupling agent, rutile type titanium white, remaining
Remaining tetrahydrofuran is added sequentially in reaction kettle, and 50 DEG C of stirring 40min are poured into and dispersed 20min in dispersion machine, obtains mixing cream
Liquid；
4) prepared by heat insulation coating: sequentially adding curing agent, Lauryl Alcohol ester into mixed emulsion, is ground to after mixed at high speed
Slurry fineness is less than 50 μm, then is placed in ultrasound 20min under the supersonic frequency of 200-400W, obtains the heat insulation coating.
Embodiment 2
A kind of Side fascia heat insulation coating, the ingredient including following weight: vinyl chloride/ethylene acetate/acrylic acid ester copolymerization
Lotion 122g, silane coupling agent polymethylphenylsiloxane 28g, rutile type titanium white 15g, Lauryl Alcohol ester 7g, modification are swollen
Moisten soil 4g, nano-antibacterial polymer microsphere 3g, curing agent 0.6g, the chloro- N- octyl -4- isothiazoline -3- ketone of anti-algae agent 4,5- bis-
0.9g, tetrahydrofuran 65g.Vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion solid content is 46 ± 2%, and viscosity is less than
100Pas, glass transition temperature are 5 DEG C；Method for preparing modified bentonite is the same as embodiment 1.Curing agent is by 2-glycidyl
Ether, 650 Versamids, the activity dicyandiamide of ultra micro are formed according to mass ratio 1:0.6:0.4 mixed preparing.
The preparation method of the nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 36g is added in the ethyl methacrylate monomer of 112g, ultrasonic disperse 2-
4min obtains mixed liquor；
2) methyl ethyl ketone peroxide of fatty alcohol polyoxyethylene ether, 0.7g that 7g is added into mixed liquor forms reactant
System；
3) zinc ricinate of 2.3g is added in the water of 260g, stirs evenly to form lipophilic aqueous solution, by oleophylic
Property aqueous solution is added in the reaction system of step 2), and 125 DEG C of stirring 30min, ultrasonic emulsification 2-6min obtain average grain diameter
The mixed emulsion of 300-500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, obtains
To the nano-antibacterial polymer microsphere.
The preparation method is the same as that of Example 1 for the present embodiment Side fascia heat insulation coating.
Embodiment 3
A kind of Side fascia heat insulation coating, the ingredient including following weight: vinyl chloride/ethylene acetate/acrylic acid ester copolymerization
The poly- methyltriethoxy silane oxygen alkane 27g of lotion 109g, silane coupling agent, rutile type titanium white 10g, Lauryl Alcohol ester 8g, change
Property bentonite 5g, nano-antibacterial polymer microsphere 4g, curing agent 0.6g, anti-algae agent zinc pyrithione 1.1g, tetrahydrofuran 66g.
Vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion solid content is 46 ± 2%, and viscosity is less than 100Pas, and vitrifying turns
Temperature is 5 DEG C；Curing agent is by diglycidyl ether, 650 Versamids, the activity dicyandiamide of ultra micro according to mass ratio 1:
0.6:0.4 mixed preparing forms.Method for preparing modified bentonite is the same as embodiment 1.
The preparation method of the nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 27g is added in the ethyl methacrylate monomer of 109g, ultrasonic disperse 2-
4min obtains mixed liquor；
2) methyl ethyl ketone peroxide of fatty alcohol polyoxyethylene ether, 0.5g that 7g is added into mixed liquor forms reactant
System；
3) zinc ricinate of 2.3g is added in the water of 260g, stirs evenly to form lipophilic aqueous solution, by oleophylic
Property aqueous solution is added in the reaction system of step 2), and 125 DEG C of stirring 30min, ultrasonic emulsification 2-6min obtain average grain diameter
The mixed emulsion of 300-500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, obtains
To the nano-antibacterial polymer microsphere.
The preparation method is the same as that of Example 1 for the present embodiment Side fascia heat insulation coating.
Embodiment 4
A kind of Side fascia heat insulation coating, the ingredient including following weight: vinyl chloride/ethylene acetate/acrylic acid ester copolymerization
Lotion 130g, silane coupling agent cyclomethicone 36g, rutile type titanium white 16g, Lauryl Alcohol ester 9g, modified alta-mud
6g, nano-antibacterial polymer microsphere 5g, curing agent 0.6g, anti-algae agent N- octyl-isothiazolinone 1.2g, tetrahydrofuran 70g.Chlorine
Ethylene/vinyl acetate/acrylate copolymer emulsion solid content is 46 ± 2%, and viscosity is less than 100Pas, glass transition
Temperature is 5 DEG C；Curing agent is by diglycidyl ether, 650 Versamids, the activity dicyandiamide of ultra micro according to mass ratio 1:
0.6:0.4 mixed preparing forms.Method for preparing modified bentonite is the same as embodiment 1.
The preparation method of the nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 40g is added in the ethyl methacrylate monomer of 115g, ultrasonic disperse 2-
4min obtains mixed liquor；
2) methyl ethyl ketone peroxide of fatty alcohol polyoxyethylene ether, 0.7g that 8g is added into mixed liquor forms reactant
System；
3) zinc ricinate of 3g is added in the water of 260g, stirs evenly to form lipophilic aqueous solution, it will be lipophilic
Aqueous solution is added in the reaction system of step 2), and 125 DEG C of stirrings 30min, ultrasonic emulsification 2-6min obtain average grain diameter 300-
The mixed emulsion of 500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, obtains
To the nano-antibacterial polymer microsphere.
The preparation method is the same as that of Example 1 for the present embodiment Side fascia heat insulation coating.
Comparative example 1
This comparative example the difference from embodiment 1 is that, lack the addition of modified alta-mud, the Side fascia heat preservation of this comparative example
Coating the preparation method is as follows:
1) the anti-algae mixed liquor preparation of antibacterial: nano-antibacterial polymer microsphere is added in dispersion machine, is added while stirring
Anti- algae agent addition is finished in 3-5min, a part of tetrahydrofuran is added dropwise under 20 DEG C of water bath conditions, obtains thick by anti-algae agent
The anti-algae mixed liquor of antibacterial；
2) prepared by mixed emulsion: by vinyl chloride/vinyl acetate/acrylate copolymer emulsion, the anti-algae mixed liquor of antibacterial, silane
Coupling agent, rutile type titanium white, remaining tetrahydrofuran are added sequentially in reaction kettle, and 50 DEG C of stirring 40min pour into dispersion
Disperse 20min in machine, obtains mixed emulsion；
3) prepared by heat insulation coating: sequentially adding curing agent, Lauryl Alcohol ester into mixed emulsion, is ground to after mixed at high speed
Slurry fineness is less than 50 μm, then is placed in ultrasound 20min under the supersonic frequency of 200-400W, obtains the heat insulation coating.
Comparative example 2
This comparative example the difference from embodiment 1 is that, lack the addition of nano-antibacterial polymer microsphere.
Comparative example 3
This comparative example the difference from embodiment 1 is that, lack the addition of anti-algae agent.
Comparative example 4
The nano multifunctional outer wall heat preservation coating of embodiment 1, packet in the patent of reference Authorization Notice No. CN101914329B
Include the ingredient of following weight: nanometer aluminium silicate 20g, calcium silicate nanowire 5g, nanometer calcium carbonate 15g, acrylate and vinyl acetate emulsion 25g, nanometer
Titanium dioxide 5g, -1,3 pentanediol only son's acid esters 0.5g of water 26g, 2,2,4- trimethyl, tributyl phosphate 1.5g, 10% six inclined phosphorus
Sour sodium 0.5g, ethylene glycol 1g, polyurethane 0.5g.
The nano multifunctional outer wall heat preservation coating the preparation method is as follows:
Stir at low speed it is lower first by water, nanometer aluminium silicate, calcium silicate nanowire, nanometer calcium carbonate, 10% hexa metaphosphoric acid
Sodium, half tributyl phosphate high-speed stirred 1 hour, are added other inorganic nanometer powders, on Multi-functional dispersion machine under stiring
High-speed stirred 1 hour, lotion is then slowly added dropwise under low mixing speed, remaining tributyl phosphate, 2,2,4- is then added
Trimethyl -1,3 pentanediol only son acid esters, ethylene glycol, polyurethane stir at low speed 3 hours, and last tinning is up to coating finished product.
Traditional performance test
According to standard JG/T512-2017 building external paint generic specifications, using roller coating method by embodiment with
The heat insulation coating or thermal insulation coatings of comparative example are coated on Side fascia, coating with a thickness of 0.5mm, applied to heat insulation coating or heat preservation
After material is dry, its thermal coefficient, water resistance, alkali resistance, tensile strength, elongation at break, fungus resistance are measured, specific test knot
Fruit is shown in Table 1.
The test of 1. heat insulation coating traditional performance of table
As can be seen from the above table, the embodiment of the present invention preparation heat insulation coating thermal coefficient be lower than comparative example, water resistance,
Alkali resistance, tensile strength, elongation at break, fungus resistance are better than comparative example, illustrate the heat-insulation and heat-preservation of the heat insulation coating of embodiment
Performance is good, has the performance of isolation moisture content, corrosion composition, and mechanical performance is excellent.Comparative example 1 lacks modified alta-mud, can not
Copolymer emulsion is formed and is coated, hydrophobicity, absorption property cannot improve, and heat preservation and insulation, mechanical performance substantially reduce.
Comparative example 4 uses a variety of nanofillers, and loose porous structure is presented, and is easy water absorption and swelling, increases thermal coefficient, reduce
Heat insulation effect.
Anti-algae performance test
Select algae: chlorella, silk algae, quiver algae.
Test method: 1) chlorella, silk algae are respectively inoculated with, quivers algae in algae fluid nutrient medium, in 25 ± 2 DEG C, 1000
10-14d is cultivated in the illumination box of~3000lx, RH >=80%, algae seedling solution concentration is adjusted to 1 × 106-9 × 106cfu/
After mL, three kinds of algae seedling solutions are mixed in equal volume and obtain mixing algae seedling solution.2) algae solid medium is melted and is cooled to 45-50 DEG C
After pour into sterile petri dish, it is spare after room temperature cooled and solidified.3) it is uniformly sprayed onto using chromatography sprayer by algae seedling solution is mixed
In embodiment and the heat insulation coating of comparative example preparation, inoculation liquid need to be uniformly distributed in the whole surface of sample.By the sample after inoculation
Product be put into 25 ± 2 DEG C, 1000~3000lx, RH >=80%, light application time be daily 14h constant temperature and humidity illumination box in train
Support 21d.When 10d is checked, media surface should obviously observe algal grown in culture dish, and otherwise test is invalid.It is trying
During testing, it is wet to keep sample surfaces, and record the growing state of algae in sample and culture dish.After the test, it observes
Specimen surface algal grown situation.
Algal grown grading standard: 0 grade: not growing；1 grade: insignificant growth (growth area < 10%)；2 grades: slight
Growth (growth area 10-30%)；3 grades: moderate growth (growth area 30-60%)；4 grades: severe growth (growth area >=
60%).
Anti-algae performance test result is shown in Table 2:
As can be seen from the above table, the anti-algae grade of the heat insulation coating of the embodiment of the present invention is 0 grade, and anti-algae performance is excellent, right
Ratio 1-3 is unable to improve dredging for copolymer emulsion due to lacking modified alta-mud, nano-antibacterial polymer microsphere, anti-algae agent respectively
Aqueous, antibacterial anti-algae performance accelerates algal grown rate so that coating water absorption and swelling, forms the environment for breeding algae.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (6)
1. a kind of Side fascia heat insulation coating, which is characterized in that according to the mass fraction, including following components: vinyl chloride/vinyl acetate
Ester/100-130 parts of acrylate copolymer emulsion, 20-40 parts of silane coupling agent, 6-18 parts of rutile type titanium white, Lauryl Alcohol
5-10 parts of ester, 3-7 parts of modified alta-mud, 2-5 parts of nano-antibacterial polymer microsphere, 0.1-0.8 parts of curing agent, anti-algae agent 0.6-
1.3 parts, 40-70 parts of tetrahydrofuran；
The vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion solid content is 46 ± 2%, and viscosity is less than 100Pas,
Glass transition temperature is 5 DEG C；
The preparation method of the nano-antibacterial polymer microsphere the following steps are included:
1) the oil-soluble titanium dioxide of 20-40 parts by weight is added in the ethyl methacrylate monomer of 80-120 parts by weight,
Ultrasonic disperse 2-4min, obtains mixed liquor；
2) fatty alcohol polyoxyethylene ether of 5-8 parts by weight, the methyl ethyl ketone peroxide of 0.2-0.8 parts by weight are added into mixed liquor
Form reaction system；
3) zinc ricinate of 1-3 parts by weight is added in the water of 260 parts by weight, stirs evenly to form lipophilic aqueous solution,
Lipophilic aqueous solution is added in the reaction system of step 2), 125 DEG C of stirring 30min, ultrasonic emulsification 2-6min are averaged
The mixed emulsion of partial size 300-500nm；
4) mixed emulsion is dried to water content in 60-80 DEG C less than 5%, is put into dry ball milling 50min in ball mill, is somebody's turn to do
Nano-antibacterial polymer microsphere.
2. Side fascia heat insulation coating according to claim 1, which is characterized in that the method for preparing modified bentonite packet
Include following steps:
1) it pre-processes: bentonite original soil being mixed with 6% HCl solution according to solid-to-liquid ratio 1:12,120 DEG C of heating stirring 40min,
Cooling, filtering purifies water washing, and dry, 520 DEG C of roastings obtain pretreatment bentonite；
2) twice-modified: pre- modified alta-mud being uniformly mixed with the ferrous sulfate solution of 30wt% according to solid-to-liquid ratio 1:8, is obtained
Mixed serum, 80 DEG C of dry 12h, 520 DEG C of calcinings 2h, 560 DEG C of calcinings 1h, 600 DEG C of calcining 20min obtain twice-modified swelling
Soil.
3. Side fascia heat insulation coating according to claim 1, which is characterized in that the silane coupling agent is poly- three second of methyl
Oxygroup siloxanes, poly- methyl trimethoxy oxygroup siloxanes, cyclomethicone, amino silicone, in polymethylphenylsiloxane
One or more mixtures.
4. Side fascia heat insulation coating according to claim 1, which is characterized in that the anti-algae agent is zinc pyrithione, N-
One of octyl-isothiazolinone, the chloro- N- octyl -4- isothiazoline -3- ketone of 4,5- bis-, 1,2- benzisothiazole-3-ketone
Or a variety of mixture.
5. Side fascia heat insulation coating according to claim 1, which is characterized in that the curing agent be diglycidyl ether,
The activity dicyandiamide of 650 Versamids, ultra micro is formed according to mass ratio 1:0.6:0.4 mixed preparing.
6. a kind of preparation method of Side fascia heat insulation coating according to claim 1, which is characterized in that including following step
It is rapid:
1) prepared by emulsion particle: weighing vinyl chloride/ethylene acetate/acrylic acid ester copolymer emulsion, bentone according to parts by weight
Soil is added in the reaction flask with mechanical stirring, condenser pipe and nitrogen protection, is passed through in nitrogen discharge reaction flask before reaction
Gas, being re-filled with nitrogen to pressure of the inside of a bottle is that 1MPa is discharged gas, is cooled to room temperature, obtains lotion after 3h are reacted in 70 DEG C of heating
Particle；
2) the anti-algae mixed liquor preparation of antibacterial: nano-antibacterial polymer microsphere is added in dispersion machine, anti-algae is added while stirring
Anti- algae agent addition is finished in 3-5min, a part of tetrahydrofuran is added dropwise under 20 DEG C of water bath conditions by agent, obtains thick resist
The anti-algae mixed liquor of bacterium；
3) prepared by mixed emulsion: by emulsion particle, the anti-algae mixed liquor of antibacterial, silane coupling agent, rutile type titanium white, remaining
Tetrahydrofuran is added sequentially in reaction kettle, and 50 DEG C of stirring 40min pour into and disperse 20min in dispersion machine, obtain mixed emulsion；
4) prepared by heat insulation coating: sequentially adding curing agent, Lauryl Alcohol ester into mixed emulsion, is ground to slurry after mixed at high speed
Fineness is less than 50 μm, then is placed in ultrasound 20min under the supersonic frequency of 200-400W, obtains the heat insulation coating.
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| CN112940566A (en) * | 2021-01-26 | 2021-06-11 | 广东海加绿色建筑集成有限公司 | Elastic coating for preventing cracking of light wallboard |
| CN113321975A (en) * | 2021-06-11 | 2021-08-31 | 天津涂天下装饰材料有限公司 | Liquid antifouling layer and preparation method thereof |
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