CN109266141A - A kind of self-clean type stone-like coating and preparation method - Google Patents
A kind of self-clean type stone-like coating and preparation method Download PDFInfo
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- CN109266141A CN109266141A CN201810980673.6A CN201810980673A CN109266141A CN 109266141 A CN109266141 A CN 109266141A CN 201810980673 A CN201810980673 A CN 201810980673A CN 109266141 A CN109266141 A CN 109266141A
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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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1618—Non-macromolecular compounds inorganic
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1625—Non-macromolecular compounds organic
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to technical field of coatings, propose a kind of self-clean type stone-like coating, 50~60 parts of natural colour sand are grouped as by the group of following parts by weight, 50~60 parts of silicone acrylic emulsion, 30~40 parts of deionized water, 20~25 parts of polyethylene glycol, 20~25 parts of diatomite, 10~15 parts of aminopropyl isobutyl group silsesquioxane, 10~15 parts of calcium carbonate, 10~15 parts of polyvinylidene fluoride, 10~15 parts of zinc oxide, 5~10 parts of stearic acid, 3~5 parts of polymethyl methacrylate, 1~2 part of adhesive aid, 1~2 part of defoaming agent, 1~1.5 part of coalescing agent, 0.7~1.3 part of preservative, preparation method uses substep mixing method.The present invention solves the technical issues of coating in the prior art easy to fall off, cracking, spraying drying time is long, adhesion strength is not high, poor durability.
Description
Technical field
The invention belongs to technical field of coatings, it is related to a kind of self-clean type stone-like coating and preparation method.
Background technique
Building coating have the function of decoration, protection building etc., cover with paint, lacquer, colour wash, etc. material surface, can change its color, decorative pattern, gloss,
Texture etc. improves the aesthetic value of object, can protect prevented by the surface of painting jewelry from extraneous light, oxygen, chemical substance,
The erosion of solvent etc. improves the service life for being coated object.
Stone-like coating receives the pro-gaze of people as a kind of new coating, and stone-like coating is very widely used, it
Decorative effect is more suitable for moulding various designs than stone material comparable to stone material.Stone-like coating can be used as exterior wall and embossment, beam column
Deng special-shaped wall decoration；It applies also for doing exterior wall mural painting；In addition to this, it may also be used for interior decoration, have granite, marble,
Color effect as numb stone, in particular for can get the effect mixed the spurious with the genuine on the decoration such as indoor cylinder, FRP Columns；?
The wayside pavilion etc. at the scenic spots such as Scenic Spots, sacred Buddhist site is had a rest a little, is decorated using stone-like coating, not only beautiful and generous, but also
Natural temperament and interest is added, is brought out the best in each other with sight spot.Stone-like coating is to take resin emulsion as base material, with the color sand of variable grain,
Mountain flour etc. is aggregate, and spraying or trowelling form the coating with lithotome texture on building surface.Currently, occur
Stone-like coating waterproof effect is undesirable, easy to fall off, cracking, spraying drying time is long, adhesion strength is not high, affects the resistance to of coating
Expenditure shortens the service life of building.
Self-cleaning coating refer to used in substrate surface by hydrophobic or water-wet behavior possessed by coating itself play it is antifouling easily
The coating of clean effect.The development of self-cleaning coating is much all derived from the inspiration of lotus leaf effect.The 70's of 20th century, German Born
The botany professor W.Barthlott of university once studied the surface texture of lotus leaf and lotus leaf effect, found lotus
Why leaf goes out mud without contaminating, and is because there is a coarse microstructure on the surface of lotus leaf, it is by countless micron-scales
Mastoid process and its surface distribution nanometer wax crystal constitute, at 5~9 μm, the partial size of wax crystal is greater than mastoid process partial size
100nm.When droplet falls on lotus leaf surface, meeting and wax crystal contact, it will be apparent that reduce the contact area of droplet and lotus leaf surface,
Expand the interface of droplet and air.In this case, drop will not extend automatically, and be to maintain its spherical state.General dirt
Dye object size is bigger than wax crystal, can only fall in the top of mastoid process, and most of dust is easier to soak than wax crystal, works as water
When lotus leaf surface rolls, pollutant can be adhered to droplet surface and be pulled away pearl, to reach self-cleaning effect.If it is common
Surface of smooth solid, the contact area of dust and the surface of solids is big, and securely, and the contact angle of water droplet is smaller, water droplet for bonding
It is more difficult to roll, and after water droplet passes through, dust is the rear end that water droplet is moved to from the front end of water droplet, remains stick to the table of solid
On face, and hydrophobic granule dust is easier to adherency on this surface.The use of self-cleaning coating can not only make appearance of city shining
Right one is new, and can reduce the expense of urban architecture cleaning, cuts down expenses.
Currently, the stone-like coating good decorating effect but waterproof effect that occur are undesirable, although and self-cleaning coating hydrophobicity is good
But decorative effect is poor, and stone-like coating and self-cleaning coating are easy to fall off, cracking, spraying drying time is long, adhesion strength is not high, influences
The durability of coating.
Summary of the invention
The present invention proposes a kind of self-clean type stone-like coating and preparation method, solves the above problem in the prior art.
The technical scheme of the present invention is realized as follows:
A kind of self-clean type stone-like coating, is grouped as by the group of following parts by weight:
50~60 parts of natural colour sand, 50~60 parts of silicone acrylic emulsion, 30~40 parts of deionized water, 20~25 parts of polyethylene glycol,
20~25 parts of diatomite, 10~15 parts of aminopropyl isobutyl group silsesquioxane, 10~15 parts of calcium carbonate, polyvinylidene fluoride 10~
15 parts, 10~15 parts of zinc oxide, 5~10 parts of stearic acid, 3~5 parts of polymethyl methacrylate, 1~2 part of adhesive aid, defoaming
1~2 part of agent, 1~1.5 part of coalescing agent, 0.7~1.3 part of preservative.
As further technical solution, it is grouped as by the group of following parts by weight: 55 parts of natural colour sand, silicone acrylic emulsion 55
Part, 35 parts of deionized water, 23 parts of polyethylene glycol, 22 parts of diatomite, 13 parts of aminopropyl isobutyl group silsesquioxane, calcium carbonate 12
Part, 12 parts of polyvinylidene fluoride, 12 parts of zinc oxide, 7 parts of stearic acid, 4 parts of polymethyl methacrylate, adhesive aid 1.5 disappears
1.5 parts of infusion, 1.3 parts of coalescing agent, 1 part of preservative.
As further technical solution, the adhesive aid is hydroxymethyl cellulose, and the defoaming agent is poly dimethyl
Siloxanes, the coalescing agent are alcohol ester 12, and the preservative is barium sulfate.
As further technical solution, the polyethylene glycol average molecular weight is 400, and the diatomite is 200 mesh silicon
Diatomaceous earth, the natural colour sand are 80~120 mesh natural colour sands.
A kind of preparation method of self-clean type stone-like coating, comprising the following steps:
S1, according to a kind of formula of self-clean type stone-like coating described in Claims 1 to 4 any one, weigh each group
Divide spare；
S2, sequentially added under the speed stirring of 300r/min the water of 30% formula ratio, the silicone acrylic emulsion of whole formula ratio,
Diatomite, natural colour sand stir 30min under conditions of 600r/min, obtain premixed liquid one；
S3, the premixed liquid one that step S2 is obtained is sent into grinder, which be ground to solid in premixed liquid
Body grain fineness≤20 micron, the premixed liquid one after being ground；
S4, sequentially added under the speed stirring of 300r/min the water of 70% formula ratio, the polyethylene glycol of whole formula ratio,
Polymethyl methacrylate, aminopropyl isobutyl group silsesquioxane, stearic acid, polyvinylidene fluoride, calcium carbonate, zinc oxide surpass
Sound dispersion, obtains premixed liquid two；
S5, by after grinding that step S3 is obtained premixed liquid one and the obtained premixed liquid two of step S4 500r/min's
The lower mixing of speed stirring, sequentially adds adhesive aid, defoaming agent, coalescing agent, the preservative of formula ratio after mixing,
60min is stirred under the velocity conditions of 800r/min, obtains mixed liquor；
S6, the mixed liquor filtering that step S5 is obtained, packaging, obtain self-clean type stone-like coating.
As further technical solution, the ultrasonic disperse time described in step S4 is 50min.
As further technical solution, filtering filter sizes described in step S6 are 50 microns.
The present invention is using principle and has the beneficial effect that
1, in the present invention, special formulation and preparation method play unexpected effect, the raw material and system of specific proportion
Preparation Method is all that inventor pays a large amount of painstaking effort researchs and obtains, each component in entire formula cooperates, and plays phase
The effect of mutual synergy and collaboration, so that self-clean type stone-like coating had not only had the dicoration of stone-like coating but also dredging with self-cleaning coating
It is aqueous, meanwhile, adhesion strength, filming performance, water resistance, alkali resistance, stain resistance, in terms of have
It significantly improves, the service performance of coating significantly improves so that the durability of coating improves, therefore extend coating uses the longevity
Life is suitable for promoting the use of.
2, in the present invention, the addition of calcium carbonate, stearic acid, zinc oxide significantly improves the hydrophobicity and stain resistant of coating
Property, stearic acid has functional carboxyl groups abundant and alkyl, the covalent bond that the hydroxyl of egg shell particle can be formed by esterification
It easily in conjunction with the carboxyl of stearic acid molecule end, is closely combined in Zinc oxide particles, acts synergistically, make with other components
Obtaining self-clean type stone-like coating has excellent hydrophobicity and contaminated resistance, meanwhile, adhesion strength is higher.
3, in the present invention, the addition of aminopropyl isobutyl radical siloxane, polyvinylidene fluoride is significantly improved
The hydrophobicity and stain resistance of coating, aminopropyl isobutyl radical siloxane, polyvinylidene fluoride have low surface energy, poly- second of arranging in pairs or groups
Glycol, meanwhile, and calcium carbonate, stearic acid, zinc oxide, polymethyl methacrylate complex role, so that self-clean type stone-like coating
With excellent hydrophobicity and contaminated resistance, meanwhile, adhesion strength is higher.
4, in the present invention, using natural colour sand as aggregate, using water as solvent, using polyethylene glycol as dispersing agent, with hydroxyl
Methylcellulose is as adhesive aid, using alcohol ester 12 as coalescing agent, using dimethyl siloxane as defoaming agent, with sulfuric acid
Barium is as preservative, while diatomite of arranging in pairs or groups, and has good intermiscibility, hydroxylmethyl cellulose using polyethylene glycol and organic matter component
Caking property, the formability of alcohol ester 12 of element, the increase-volume of diatomite, thickening property, so that self-clean type stone-like coating performance is more
To stablize, application property is good, meanwhile, it avoids reducing to the destruction of environment and the injury of human body, coating is more using a large amount of organic solvent
Add safety and environmental protection.
5, in the present invention, the method that segmentation mix is used in the preparation method of self-clean type stone-like coating, i.e. S3, S5 are distinguished
Different ingredients is subjected to dissolution and is mixed with premixed liquid, after mixing by premixed liquid, then adhesive aid, defoaming agent, film forming
Auxiliary agent, preservative are stirred, and keep the self-clean type stone-like coating performance of preparation more stable, and application property is good, water resistance, hydrophobic
Property, artificial ageing resistance, stain resistance, adhesion strength etc. performance are more preferable, and durability is good.
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, every 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 self-clean type stone-like coating, preparation method includes the following steps:
S1, according to the formula of following self-clean type stone-like coating, it is spare to weigh each component；
50 parts of natural colour sand, 50 parts of silicone acrylic emulsion, 30 parts of deionized water, 20 parts of polyethylene glycol, 20 parts of diatomite, aminopropyl
10 parts of isobutyl group silsesquioxane, 10 parts of calcium carbonate, 10 parts of polyvinylidene fluoride, 10 parts of zinc oxide, 5 parts of stearic acid, poly- methyl
3 parts of methyl acrylate, 1 part of hydroxymethyl cellulose, 1 part of dimethyl silicone polymer, 12 parts of alcohol ester, 0.7 part of barium sulfate.
Wherein, polyethylene glycol average molecular weight is 400, and diatomite is 200 mesh diatomite, and natural colour sand is 80~120 mesh
Natural colour sand.
S2, sequentially added under the speed stirring of 300r/min the water of 30% formula ratio, the silicone acrylic emulsion of whole formula ratio,
Diatomite, natural colour sand stir 30min under conditions of 600r/min, obtain premixed liquid one；
S3, the premixed liquid one that step S2 is obtained is sent into grinder, which be ground to solid in premixed liquid
Body grain fineness≤20 micron, the premixed liquid one after being ground；
S4, sequentially added under the speed stirring of 300r/min the water of 70% formula ratio, the polyethylene glycol of whole formula ratio,
Polymethyl methacrylate, aminopropyl isobutyl group silsesquioxane, stearic acid, polyvinylidene fluoride, calcium carbonate, zinc oxide surpass
Sound disperses 50min, obtains premixed liquid two；
S5, by after grinding that step S3 is obtained premixed liquid one and the obtained premixed liquid two of step S4 500r/min's
The lower mixing of speed stirring, sequentially adds the hydroxymethyl cellulose, dimethyl silicone polymer, alcohol ester ten of formula ratio after mixing
Two, barium sulfate stirs 60min under the velocity conditions of 800r/min, obtains mixed liquor；
S6, the mixed liquor for obtaining step S5 filter, and filter sizes are 50 microns, and packaging obtains self-clean type stone-like coating.
Embodiment 2
A kind of self-clean type stone-like coating, preparation method includes the following steps:
S1, according to the formula of following self-clean type stone-like coating, it is spare to weigh each component；
55 parts of natural colour sand, 55 parts of silicone acrylic emulsion, 35 parts of deionized water, 23 parts of polyethylene glycol, 22 parts of diatomite, aminopropyl
13 parts of isobutyl group silsesquioxane, 12 parts of calcium carbonate, 12 parts of polyvinylidene fluoride, 12 parts of zinc oxide, 7 parts of stearic acid, poly- methyl
4 parts of methyl acrylate, 1.5 parts of hydroxymethyl cellulose, 1.5 parts of dimethyl silicone polymer, 12 parts of alcohol ester, 1 part of barium sulfate.
Wherein, polyethylene glycol average molecular weight is 400, and diatomite is 200 mesh diatomite, and natural colour sand is 80~120 mesh
Natural colour sand.
S2, sequentially added under the speed stirring of 300r/min the water of 30% formula ratio, the silicone acrylic emulsion of whole formula ratio,
Diatomite, natural colour sand stir 30min under conditions of 600r/min, obtain premixed liquid one；
S3, the premixed liquid one that step S2 is obtained is sent into grinder, which be ground to solid in premixed liquid
Body grain fineness≤20 micron, the premixed liquid one after being ground；
S4, sequentially added under the speed stirring of 300r/min the water of 70% formula ratio, the polyethylene glycol of whole formula ratio,
Polymethyl methacrylate, aminopropyl isobutyl group silsesquioxane, stearic acid, polyvinylidene fluoride, calcium carbonate, zinc oxide surpass
Sound disperses 50min, obtains premixed liquid two；
S5, by after grinding that step S3 is obtained premixed liquid one and the obtained premixed liquid two of step S4 500r/min's
The lower mixing of speed stirring, sequentially adds the hydroxymethyl cellulose, dimethyl silicone polymer, alcohol ester ten of formula ratio after mixing
Two, barium sulfate stirs 60min under the velocity conditions of 800r/min, obtains mixed liquor；
S6, the mixed liquor for obtaining step S5 filter, and filter sizes are 50 microns, and packaging obtains self-clean type stone-like coating.
Embodiment 3
A kind of self-clean type stone-like coating, preparation method includes the following steps:
S1, according to the formula of following self-clean type stone-like coating, it is spare to weigh each component；
60 parts of natural colour sand, 60 parts of silicone acrylic emulsion, 40 parts of deionized water, 25 parts of polyethylene glycol, 25 parts of diatomite, aminopropyl
15 parts of isobutyl group silsesquioxane, 15 parts of calcium carbonate, 15 parts of polyvinylidene fluoride, 15 parts of zinc oxide, 10 parts of stearic acid, poly- methyl
5 parts of methyl acrylate, 2 parts of hydroxymethyl cellulose, 2 parts of dimethyl silicone polymer, 12 parts of alcohol ester, 1.3 parts of barium sulfate.
Wherein, polyethylene glycol average molecular weight is 400, and diatomite is 200 mesh diatomite, and natural colour sand is 80~120 mesh
Natural colour sand.
S2, sequentially added under the speed stirring of 300r/min the water of 30% formula ratio, the silicone acrylic emulsion of whole formula ratio,
Diatomite, natural colour sand stir 30min under conditions of 600r/min, obtain premixed liquid one；
S3, the premixed liquid one that step S2 is obtained is sent into grinder, which be ground to solid in premixed liquid
Body grain fineness≤20 micron, the premixed liquid one after being ground；
S4, sequentially added under the speed stirring of 300r/min the water of 70% formula ratio, the polyethylene glycol of whole formula ratio,
Polymethyl methacrylate, aminopropyl isobutyl group silsesquioxane, stearic acid, polyvinylidene fluoride, calcium carbonate, zinc oxide surpass
Sound disperses 50min, obtains premixed liquid two；
S5, by after grinding that step S3 is obtained premixed liquid one and the obtained premixed liquid two of step S4 500r/min's
The lower mixing of speed stirring, sequentially adds the hydroxymethyl cellulose, dimethyl silicone polymer, alcohol ester ten of formula ratio after mixing
Two, barium sulfate stirs 60min under the velocity conditions of 800r/min, obtains mixed liquor；
S6, the mixed liquor for obtaining step S5 filter, and filter sizes are 50 microns, and packaging obtains self-clean type stone-like coating.
Comparative example 1
For the formula of self-clean type stone-like coating with embodiment 2, preparation method is one-step method, under the speed stirring of 300r/min
After sequentially adding ingredient all in formula, 60min, filtering are stirred, filter sizes are 50 microns, and it is imitative to obtain self-clean type for packaging
Stone coating.
Comparative example 2
The formula of self-clean type stone-like coating are as follows: 55 parts of natural colour sand, 55 parts of silicone acrylic emulsion, 35 parts of deionized water, poly- second two
23 parts of alcohol, 22 parts of diatomite, 13 parts of aminopropyl isobutyl group silsesquioxane, 12 parts of polyvinylidene fluoride, poly-methyl methacrylate
It is 4 parts of ester, 1.5 parts of hydroxymethyl cellulose, 1.5 parts of dimethyl silicone polymer, 12 parts of alcohol ester, 1 part of barium sulfate, corresponding to incite somebody to action
The stearic acid in step S4, calcium carbonate, zinc oxide in embodiment 2 are deleted, remaining step is the same as embodiment 2.
Comparative example 3
60 parts of natural colour sand, 60 parts of silicone acrylic emulsion, 40 parts of deionized water, 25 parts of diatomite, 15 parts of calcium carbonate, zinc oxide
15 parts, 10 parts of stearic acid, 5 parts of polymethyl methacrylate, 2 parts of hydroxymethyl cellulose, 2 parts of dimethyl silicone polymer, alcohol ester ten
2 1.5 parts, 1.3 parts of barium sulfate, the corresponding aminopropyl isobutyl group silsesquioxane by 2 step S4 of embodiment gathers inclined difluoro
Ethylene is deleted, remaining step is the same as embodiment 2.
Comparative example 4
60 parts of natural colour sand, 60 parts of silicone acrylic emulsion, 40 parts of deionized water, 25 parts of polyethylene glycol, 25 parts of diatomite, aminopropyl
15 parts of isobutyl group silsesquioxane, 15 parts of calcium carbonate, 15 parts of polyvinylidene fluoride, 15 parts of zinc oxide, 10 parts of stearic acid, poly- methyl
It is 5 parts of methyl acrylate, 2 parts of hydroxymethyl cellulose, 2 parts of dimethyl silicone polymer, 12 parts of alcohol ester, 1.3 parts of barium sulfate, right
Answer by 2 step S3 of embodiment diatomite, polymethyl methacrylate is deleted in step S5, the same embodiment of remaining step
2。
Experimental data is as shown in table 1:
1~4 each component parts by weight of 1 Examples 1 to 3 of table and comparative example
Note :-it is no this item
Self-clean type stone-like coating in above-described embodiment 1~3 and comparative example 1~4 is tested for the property, test result is such as
Shown in following table:
Self-clean type stone-like coating in 2 Examples 1 to 3 of table and comparative example 1~4 is tested for the property result
As can be seen from the table, the self-clean type stone-like coating that prepared by the embodiment of the present invention 1~3, which meets exterior coating, to be wanted
Ask, and function admirable, not only the decorative hydrophobicity with self-cleaning coating with stone-like coating, meanwhile, adhesion strength, at
Film properties, water resistance, alkali resistance, stain resistance, artificial weathering ageing resistance etc. are obviously improved, the usability of coating
It can significantly improve so that the durability of coating improves, therefore extends the service life of coating, solve coating in the prior art
Easy to fall off, cracking sprays the problem of drying time is long, adhesion strength is not high, poor durability.Wherein, the raw material that embodiment 2 uses
Proportion and preparation method are that more preferably technical solution, self-clean type stone-like coating performance obtained are best relatively by the present invention.
Comparative example 1 is compared with the embodiment of the present invention 2, and the performance of self-clean type stone-like coating prepared by embodiment 2 significantly mentions
High: the performances such as water resistance, hydrophobicity, artificial ageing resistance, stain resistance are more preferable, and adhesion strength is higher, illustrate and one-step method phase
Than the self-clean type stone-like coating performance that the specific preparation method of the present invention obtains is more preferable.
Comparative example 2 is compared with the embodiment of the present invention 2, and the hydrophobicity of self-clean type stone-like coating prepared by embodiment 2 resistance to is stained with
The performances such as dirt significantly improve, while adhesion strength is relatively higher, illustrate that calcium carbonate, stearic acid, zinc oxide are added in the present invention,
It mutually acts synergistically with other components, significantly improves the hydrophobicity and stain resistance of coating, while improving the bonding of coating
Intensity.
Comparative example 3 is compared with the embodiment of the present invention 2, and the hydrophobicity of self-clean type stone-like coating prepared by embodiment 2 resistance to is stained with
The performances such as dirt, artificial ageing resistance significantly improve, while adhesion strength is relatively higher, illustrate that addition aminopropyl is different in the present invention
Butyl siloxanes, polyvinylidene fluoride mutually act synergistically with other components, significantly improve the hydrophobicity and stain resistant of coating
Property, while improving the adhesion strength of coating.
Comparative example 4 is compared with the embodiment of the present invention 2, and the adhesion strength of self-clean type stone-like coating prepared by embodiment 2 is aobvious
It writes and improves, while the performances such as hydrophobicity, stain resistance, artificial ageing resistance improve, illustrate that diatomite, poly- second are added in the present invention
Glycol, polymethyl methacrylate mutually act synergistically with other components, significantly improve the adhesion strength of coating, mention simultaneously
The performances such as the high hydrophobicity of coating, stain resistance, artificial ageing resistance.
It summarizes:
1, a kind of self-clean type stone-like coating of the invention is compared during the preparation process using the preparation method of substep mixing
It is prepared in one-step method, improves the performances such as water resistance, hydrophobicity, artificial ageing resistance, stain resistance, the adhesion strength of coating,
So that performance is more preferable in use for coating, the service life of coating is extended.
2, calcium carbonate, stearic acid, zinc oxide are added in the feed, significantly mentions for a kind of self-clean type stone-like coating of the invention
The high hydrophobicity and stain resistance of coating, while improving the adhesion strength of coating.
3, aminopropyl isobutyl radical siloxane is added in the feed, gathers inclined difluoro for a kind of self-clean type stone-like coating of the invention
Ethylene significantly improves the hydrophobicity and stain resistance of coating, while improving the adhesion strength of coating.
4, diatomite, polyethylene glycol, polymethylacrylic acid is added in a kind of self-clean type stone-like coating of the invention in the feed
Methyl esters significantly improves the adhesion strength of coating, while hydrophobicity, stain resistance, the artificial ageing resistance etc. for improving coating
Performance.
In conclusion the present invention is able to solve, coating in the prior art easy to fall off, cracking, spraying drying time is long, bonds
The technical issues of intensity is high, poor durability, and compared with the existing technology there are following substantive distinguishing features outstanding and significant
Progress, advantage is as follows:
1, in the present invention, special formulation and preparation method play unexpected effect, the raw material and system of specific proportion
Preparation Method is all that inventor pays a large amount of painstaking effort researchs and obtains, each component in entire formula cooperates, and plays phase
The effect of mutual synergy and collaboration, so that self-clean type stone-like coating had not only had the dicoration of stone-like coating but also dredging with self-cleaning coating
It is aqueous, meanwhile, adhesion strength, filming performance, water resistance, alkali resistance, stain resistance, in terms of have
It significantly improves, the service performance of coating significantly improves so that the durability of coating improves, therefore extend coating uses the longevity
Life is suitable for promoting the use of.
2, in the present invention, the addition of calcium carbonate, stearic acid, zinc oxide significantly improves the hydrophobicity and stain resistant of coating
Property, stearic acid has functional carboxyl groups abundant and alkyl, the covalent bond that the hydroxyl of egg shell particle can be formed by esterification
It easily in conjunction with the carboxyl of stearic acid molecule end, is closely combined in Zinc oxide particles, acts synergistically, make with other components
Obtaining self-clean type stone-like coating has excellent hydrophobicity and contaminated resistance, meanwhile, adhesion strength is higher.
3, in the present invention, the addition of aminopropyl isobutyl radical siloxane, polyvinylidene fluoride is significantly improved
The hydrophobicity and stain resistance of coating, aminopropyl isobutyl radical siloxane, polyvinylidene fluoride have low surface energy, poly- second of arranging in pairs or groups
Glycol, meanwhile, and calcium carbonate, stearic acid, zinc oxide, polymethyl methacrylate complex role, so that self-clean type stone-like coating
With excellent hydrophobicity and contaminated resistance, meanwhile, adhesion strength is higher.
4, in the present invention, using natural colour sand as aggregate, using water as solvent, using polyethylene glycol as dispersing agent, with hydroxyl
Methylcellulose is as adhesive aid, using alcohol ester 12 as coalescing agent, using dimethyl siloxane as defoaming agent, with sulfuric acid
Barium is as preservative, while diatomite of arranging in pairs or groups, and has good intermiscibility, hydroxylmethyl cellulose using polyethylene glycol and organic matter component
Caking property, the formability of alcohol ester 12 of element, the increase-volume of diatomite, thickening property, so that self-clean type stone-like coating performance is more
To stablize, application property is good, meanwhile, it avoids reducing to the destruction of environment and the injury of human body, coating is more using a large amount of organic solvent
Add safety and environmental protection.
5, in the present invention, the method that segmentation mix is used in the preparation method of self-clean type stone-like coating, i.e. S3, S5 are distinguished
Different ingredients is subjected to dissolution and is mixed with premixed liquid, after mixing by premixed liquid, then adhesive aid, defoaming agent, film forming
Auxiliary agent, preservative are stirred, and keep the self-clean type stone-like coating performance of preparation more stable, and application property is good, water resistance, hydrophobic
Property, artificial ageing resistance, stain resistance, adhesion strength etc. performance are more preferable, and durability is good.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of self-clean type stone-like coating, which is characterized in that be grouped as by the group of following parts by weight:
50~60 parts of natural colour sand, 50~60 parts of silicone acrylic emulsion, 30~40 parts of deionized water, 20~25 parts of polyethylene glycol, diatom
20~25 parts of soil, 10~15 parts of aminopropyl isobutyl group silsesquioxane, 10~15 parts of calcium carbonate, polyvinylidene fluoride 10~15
Part, 10~15 parts of zinc oxide, 5~10 parts of stearic acid, 3~5 parts of polymethyl methacrylate, 1~2 part of adhesive aid, defoaming agent 1
~2 parts, 1~1.5 part of coalescing agent, 0.7~1.3 part of preservative.
2. a kind of self-clean type stone-like coating according to claim 1, which is characterized in that be grouped by the group of following parts by weight
At: 55 parts of natural colour sand, 55 parts of silicone acrylic emulsion, 35 parts of deionized water, 23 parts of polyethylene glycol, 22 parts of diatomite, aminopropyl isobutyl
13 parts of base silsesquioxane, 12 parts of calcium carbonate, 12 parts of polyvinylidene fluoride, 12 parts of zinc oxide, 7 parts of stearic acid, polymethyl
4 parts of sour methyl esters, adhesive aid 1.5,1.5 parts of defoaming agent, 1.3 parts of coalescing agent, 1 part of preservative.
3. a kind of self-clean type stone-like coating described in any one according to claim 1~2, which is characterized in that the bonding helps
Agent is hydroxymethyl cellulose, and the defoaming agent is dimethyl silicone polymer, and the coalescing agent is alcohol ester 12, the preservative
For barium sulfate.
4. a kind of self-clean type stone-like coating according to claim 3, which is characterized in that the polyethylene glycol average molecular weight
It is 400, the diatomite is 200 mesh diatomite, and the natural colour sand is 80~120 mesh natural colour sands.
5. a kind of preparation method of self-clean type stone-like coating, which comprises the following steps:
S1, according to a kind of formula of self-clean type stone-like coating described in Claims 1 to 4 any one, it is standby to weigh each component
With；
S2, the water of 30% formula ratio, the silicone acrylic emulsion of whole formula ratios, diatom are sequentially added under the speed stirring of 300r/min
Soil, natural colour sand, stir 30min under conditions of 600r/min, obtain premixed liquid one；
S3, the premixed liquid one that step S2 is obtained is sent into grinder, which is carried out to be ground to solid in premixed liquid
Grain fineness≤20 micron, the premixed liquid one after being ground；
S4, the water of 70% formula ratio, the polyethylene glycol of whole formula ratios, poly- first are sequentially added under the speed stirring of 300r/min
Base methyl acrylate, aminopropyl isobutyl group silsesquioxane, stearic acid, polyvinylidene fluoride, calcium carbonate, zinc oxide, ultrasound point
It dissipates, obtains premixed liquid two；
S5, the premixed liquid two that the premixed liquid one after grinding that step S3 is obtained is obtained with step S4 is stirred in the speed of 500r/min
Lower mixing is mixed, adhesive aid, defoaming agent, coalescing agent, the preservative of formula ratio are sequentially added after mixing, in 800r/min
Velocity conditions under stir 60min, obtain mixed liquor；
S6, the mixed liquor filtering that step S5 is obtained, packaging, obtain self-clean type stone-like coating.
6. a kind of self-clean type stone-like coating according to claim 1, which is characterized in that the ultrasonic disperse time described in step S4
For 50min.
7. a kind of self-clean type stone-like coating according to claim 1, which is characterized in that filtering filter hole described in step S6
Diameter is 50 microns.
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