CN111826030A - Graphene external wall panel self-cleaning coating and preparation method thereof - Google Patents
Graphene external wall panel self-cleaning coating and preparation method thereof Download PDFInfo
- Publication number
- CN111826030A CN111826030A CN202010837571.6A CN202010837571A CN111826030A CN 111826030 A CN111826030 A CN 111826030A CN 202010837571 A CN202010837571 A CN 202010837571A CN 111826030 A CN111826030 A CN 111826030A
- Authority
- CN
- China
- Prior art keywords
- graphene
- external wall
- wall panel
- cleaning coating
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 41
- 238000004140 cleaning Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000008367 deionised water Substances 0.000 claims abstract description 16
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 16
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 15
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 8
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 8
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 239000004094 surface-active agent Substances 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 13
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- LENJPRSQISBMDN-UHFFFAOYSA-N [Y].[Ce] Chemical compound [Y].[Ce] LENJPRSQISBMDN-UHFFFAOYSA-N 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 5
- -1 graphite alkene Chemical class 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229940077386 sodium benzenesulfonate Drugs 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims description 3
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical group CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 2
- 210000003195 fascia Anatomy 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000013530 defoamer Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- VLOFLNGRXXADOF-UHFFFAOYSA-N cerium(3+) oxygen(2-) yttrium(3+) Chemical compound [Y+3].[O-2].[Ce+3].[O-2].[O-2] VLOFLNGRXXADOF-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
-
- 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
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a graphene external wall panel self-cleaning coating which comprises the following components in parts by weight: 20-60 parts of alkaline silica sol, 10-30 parts of styrene acrylate emulsion, 2-8 parts of graphene, 1-5 parts of nano yttrium oxide, 1-5 parts of nano cerium oxide, 0.1-1 part of film-forming additive, 0.5-3 parts of surfactant, 5-10 parts of thickener, 0.1-1 part of dispersant, 0.1-1 part of defoamer, 10-20 parts of pigment and 10-30 parts of deionized water. The invention also discloses a preparation method of the graphene external wall panel self-cleaning coating. By adopting the graphene external wall panel self-cleaning coating and the preparation method thereof, the problems of low binding force and poor self-cleaning capability of the existing self-cleaning coating and an external wall can be solved.
Description
Technical Field
The invention belongs to the technical field of self-cleaning coatings for buildings, and particularly relates to a graphene external wall panel self-cleaning coating and a preparation method thereof.
Background
Along with the continuous aggravation of environmental pollution, haze in the air is more and more serious, and oily smog, automobile exhaust, industrial waste gas and the like contained in the air bring serious erosion and pollution to the outer wall of a building, so that the attractiveness and the performance of the outer wall of the building are influenced. The contact angle of the self-cleaning coating with water is large, and the wettability of the self-cleaning coating with water is poor, so that water slides off the coating under the action of gravity and is difficult to stay on the coating. Sundries can be washed off from the coating under the action of water, the surface of the coating is kept clean, maintenance cost can be reduced, labor force requirements can be reduced, and meanwhile the use of cleaning agents can be reduced. Therefore, the self-cleaning coating is widely applied to the outer wall of the building. The existing self-cleaning coating has the problems of low binding force with an outer wall and poor self-cleaning capability.
Disclosure of Invention
The invention aims to provide a graphene external wall panel self-cleaning coating, and solves the problems of low binding force and poor self-cleaning capability of the existing self-cleaning coating and an external wall.
In order to achieve the purpose, the invention provides a graphene external wall panel self-cleaning coating which comprises the following components in parts by weight:
preferably, the particle size of nano silica ions in the alkaline silica sol is not more than 600nm, the content of silica is 20% -30%, and the ratio of silica to sodium oxide is not less than 40%.
Preferably, the film-forming assistant is one or a mixture of more of zinc oxide, butyl silicate, butyl acetate or sodium methyl silicate.
Preferably, the surfactant is sodium benzenesulfonate.
Preferably, the thickener is hydroxyethyl cellulose, CMC or a mixture of the two; the dispersant is sodium hexametaphosphate; the defoaming agent is tributyl phosphate.
The preparation method of the graphene external wall panel self-cleaning coating comprises the following steps:
s1, adding nano yttrium oxide and nano cerium oxide into a certain amount of deionized water, and performing ultrasonic uniform dispersion for 40-60 minutes at the rotating speed of 1000-2000rpm to prepare yttrium-cerium composite ceramic nano liquid;
s2, adding graphene into a certain amount of deionized water, adding a certain amount of ethanol solution into the deionized water, performing ultrasonic uniform dispersion for 90-180 minutes at the rotating speed of 1000-2000rpm, and evaporating ethanol to prepare graphene dispersion liquid;
s3, adding a film forming agent into a reaction kettle, adding a certain amount of deionized water, stirring, then sequentially adding a surfactant, a thickening agent, a dispersing agent and a defoaming agent, stirring uniformly, then slowly adding alkaline silica sol into the reaction kettle, adding a styrene acrylate emulsion, a graphene dispersion liquid and a yttrium cerium composite ceramic nano liquid, stirring uniformly, and grinding and dispersing by a grinder for 1-2 hours;
s4, adding the pigment and all the deionized water into the grinding material, and stirring and mixing uniformly at the rotating speed of 800-1200rpm to obtain the coating.
The graphene external wall panel self-cleaning coating and the preparation method thereof have the advantages and positive effects that:
1. when the silica sol loses moisture, monomer silicic acid is gradually polymerized to form high polymer silica gel, colloid molecules are enlarged along with the evaporation of the moisture, and finally a coating film with a "-Si-O-Si-O-" net structure is formed, so that various dust in the air is difficult to adhere to the coating film, and the anti-pollution capability is strong. Sodium oxide (Na) in silica sol2O) content is low, and the silica sol does not dissolve again once formed, so that the water resistance and heat resistance are good. Silica (Si) in silica sol2O), has stronger penetrability to the base layer, can permeate into the base layer through a capillary, and can react with calcium hydroxide in the concrete base layer to generate calcium silicate, so that the coating has stronger binding power.
2. A certain amount of styrene acrylate emulsion is added into the coating, so that styrene acrylate molecules are uniformly distributed in gaps of a "-Si-O-Si-" net structure, residual hydrophilic groups in a coating film are shielded, and meanwhile, the shrinkage of the coating can be buffered during cold and hot alternation, and the coating has certain elasticity.
3. The graphene serving as nano-level particles can fill gaps or cavities of the coating, can effectively achieve the filling effect, and can isolate water and oxygen to enable the surface to be completely separated from the outside. Due to the surface effect of the graphene, the contact angle between the graphene and water is large, the wettability of the graphene to water is poor, and the self-cleaning effect of the coating is improved.
4. The yttrium cerium oxide composite ceramic nano liquid is prepared by dispersing nano yttrium oxide and nano cerium oxide and then modifying the dispersed nano yttrium oxide and nano cerium oxide according to a ratio, and the yttrium cerium composite ceramic nano liquid and graphene are added into the coating, so that the simulation is carried out by utilizing the lotus leaf hydrophobic principle, and the invasion of dust and oil stains can be effectively prevented.
The technical solution of the present invention is further described in detail by the following examples.
Detailed Description
The graphene external wall panel self-cleaning coating comprises the following components in parts by weight:
the particle size of nano silicon dioxide ions in the alkaline silica sol is not more than 600nm, the content of silicon dioxide is 20-30%, and the proportion of silicon dioxide and sodium oxide is not less than 40%.
The film forming assistant is one or a mixture of more of zinc oxide, butyl silicate, butyl acetate or sodium methyl silicate.
The surfactant is sodium benzene sulfonate.
The thickener is hydroxyethyl cellulose, CMC or the mixture of the hydroxyethyl cellulose and the CMC; the dispersant is sodium hexametaphosphate; the defoaming agent is tributyl phosphate.
The pigment may be carbon black, titanium dioxide, indigo or other pigments.
The preparation method of the graphene external wall panel self-cleaning coating comprises the following steps:
s1, adding the nano yttrium oxide and the nano cerium oxide into a certain amount of deionized water, and performing ultrasonic uniform dispersion for 40-60 minutes at the rotating speed of 1000-2000rpm to prepare the yttrium-cerium composite ceramic nano liquid.
S2, adding graphene into a certain amount of deionized water, adding a certain amount of ethanol solution into the deionized water, performing ultrasonic uniform dispersion for 90-180 minutes at the rotating speed of 1000-2000rpm, and evaporating ethanol to prepare graphene dispersion liquid; the addition of the ethanol solution can improve the dispersibility of the graphene.
S3, adding the film forming agent into a reaction kettle, adding a certain amount of deionized water, stirring, then sequentially adding the surfactant, the thickening agent, the dispersing agent and the defoaming agent, stirring uniformly, then slowly adding the alkaline silica sol into the reaction kettle, adding the styrene acrylate emulsion, the graphene dispersion liquid and the yttrium cerium composite ceramic nano liquid, stirring uniformly, and grinding and dispersing by a grinder for 1-2 hours.
S4, adding the pigment and all the deionized water into the grinding material, and stirring and mixing uniformly at the rotating speed of 800-1200rpm to obtain the coating.
Silica sol is used as a base material, pigment and various assistants are matched to prepare silica sol inorganic high-molecular paint, when the silicon solution loses moisture, monomer silicic acid is gradually polymerized to form high polymer silica gel, colloid molecules are enlarged along with the evaporation of the moisture, and finally a coating film with a "-Si-O-Si-O-" net-shaped structure is formed. Sodium oxide (Na) in silica sol2O) content is low, and the silica sol does not dissolve again once formed, so that the water resistance and heat resistance are good. Silica (Si) in silica sol2O), has stronger penetrability to the base layer, can permeate into the base layer through a capillary, and can react with calcium hydroxide in the concrete base layer to generate calcium silicate, so that the coating has stronger binding power.
The volume of the silica sol is greatly shrunk in the film forming process, and a coating film is easy to crack. A certain amount of styrene acrylate emulsion is added into the coating, so that styrene acrylate molecules are uniformly distributed in gaps of a "-Si-O-Si-" net structure, residual hydrophilic groups in a coating film are shielded, and meanwhile, the shrinkage of the coating can be buffered during cold and hot alternation, and the coating has certain elasticity.
The graphene serving as nano-level particles can fill gaps or cavities of the coating, can effectively achieve the filling effect, and can isolate water and oxygen to enable the surface to be completely separated from the outside. The contact angle of graphene and water is large due to the surface effect of graphene, wettability of water is poor, moisture is hardly absorbed by the graphene, the graphene isolates the contact of water and a substrate, and the self-cleaning effect of the coating is improved.
The yttrium cerium composite ceramic nano liquid is prepared by modifying nano yttrium oxide and nano cerium oxide according to a ratio after the nano yttrium oxide and the nano cerium oxide are dispersed, the yttrium cerium composite ceramic nano liquid and graphene are added into the coating, and the simulation is carried out by utilizing the principle of lotus leaf drainage, so that the invasion of dust and oil stains can be effectively prevented, the dust and the oil stains can be easily taken away in the process of wind blowing or vibration, the surface of the coating is kept clean, and the self-cleaning effect of the coating is improved.
The present invention will be further described with reference to specific examples, which are provided to illustrate specific embodiments and specific procedures based on the technical solution, but the scope of the present invention is not limited to the examples. The ingredients of the coatings of examples 1-4 are shown in the following table:
detecting the contact angle of the self-cleaning coating and water in the embodiment; uniformly spreading carbon black on the surface of the coating, inclining the surface of the coating by 45 degrees, sucking 0.3ml of distilled water by a sample injector to drop to the upper end of the test surface, and performing a dust collection experiment on the coating; detecting the surface morphology of the coating by adopting a Scanning Electron Microscope (SEM) and an AFM; the adhesion and impact resistance of the coating are detected; the results are set forth in the following table:
in conclusion, the self-cleaning coating for the graphene external wall panel and the preparation method thereof have the advantages of large contact angle, poor dust collecting capacity, and good coating adhesion and impact resistance.
Therefore, the graphene external wall panel self-cleaning coating and the preparation method thereof can solve the problems of low binding force and poor self-cleaning capability of the existing self-cleaning coating and an external wall.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a graphite alkene side fascia automatically cleaning coating which characterized in that: comprises the following components by weight:
2. the graphene external wall panel self-cleaning coating as claimed in claim 1, wherein: the particle size of nano silicon dioxide ions in the alkaline silica sol is not more than 600nm, the content of silicon dioxide is 20-30%, and the proportion of silicon dioxide and sodium oxide is not less than 40%.
3. The graphene external wall panel self-cleaning coating as claimed in claim 1, wherein: the film-forming assistant is one or a mixture of more of zinc oxide, butyl silicate, butyl acetate or sodium methyl silicate.
4. The graphene external wall panel self-cleaning coating as claimed in claim 1, wherein: the surfactant is sodium benzene sulfonate.
5. The graphene external wall panel self-cleaning coating as claimed in claim 1, wherein: the thickening agent is hydroxyethyl cellulose, CMC or the mixture of the hydroxyethyl cellulose and the CMC; the dispersant is sodium hexametaphosphate; the defoaming agent is tributyl phosphate.
6. The preparation method of the graphene external wall panel self-cleaning coating according to any one of claims 1 to 5, characterized by comprising the following steps:
s1, adding nano yttrium oxide and nano cerium oxide into a certain amount of deionized water, and performing ultrasonic uniform dispersion for 40-60 minutes at the rotating speed of 1000-2000rpm to prepare yttrium-cerium composite ceramic nano liquid;
s2, adding graphene into a certain amount of deionized water, adding a certain amount of ethanol solution into the deionized water, performing ultrasonic uniform dispersion for 90-180 minutes at the rotating speed of 1000-2000rpm, and evaporating ethanol to prepare graphene dispersion liquid;
s3, adding a film forming agent into a reaction kettle, adding a certain amount of deionized water, stirring, then sequentially adding a surfactant, a thickening agent, a dispersing agent and a defoaming agent, stirring uniformly, then slowly adding alkaline silica sol into the reaction kettle, adding a styrene acrylate emulsion, a graphene dispersion liquid and a yttrium cerium composite ceramic nano liquid, stirring uniformly, and grinding and dispersing by a grinder for 1-2 hours;
s4, adding the pigment and all the deionized water into the grinding material, and stirring and mixing uniformly at the rotating speed of 800-1200rpm to obtain the coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010837571.6A CN111826030A (en) | 2020-08-19 | 2020-08-19 | Graphene external wall panel self-cleaning coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010837571.6A CN111826030A (en) | 2020-08-19 | 2020-08-19 | Graphene external wall panel self-cleaning coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111826030A true CN111826030A (en) | 2020-10-27 |
Family
ID=72918707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010837571.6A Pending CN111826030A (en) | 2020-08-19 | 2020-08-19 | Graphene external wall panel self-cleaning coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111826030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116589878A (en) * | 2023-07-19 | 2023-08-15 | 北京碧海云智新材料技术有限公司 | Long-acting self-cleaning graphene ceramic water paint and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268208A (en) * | 2011-06-02 | 2011-12-07 | 沈阳顺风新城建筑材料有限公司 | Nanometer silica sol modified exterior wall emulsion paint and preparation method thereof |
| CN103360881A (en) * | 2013-08-01 | 2013-10-23 | 长沙学院 | Nano-silica sol-modified outer wall paint and preparation method thereof |
| CN107760072A (en) * | 2017-11-14 | 2018-03-06 | 百氏高涂料（苏州）有限公司 | A kind of Ludox polymerize external wall Nano self-cleaning coating and technology of preparing with graphene |
| CN109554110A (en) * | 2018-11-26 | 2019-04-02 | 四川陆亨能源科技有限公司 | A kind of thermostable heat-conductive self-cleaning coating and preparation method thereof |
-
2020
- 2020-08-19 CN CN202010837571.6A patent/CN111826030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268208A (en) * | 2011-06-02 | 2011-12-07 | 沈阳顺风新城建筑材料有限公司 | Nanometer silica sol modified exterior wall emulsion paint and preparation method thereof |
| CN103360881A (en) * | 2013-08-01 | 2013-10-23 | 长沙学院 | Nano-silica sol-modified outer wall paint and preparation method thereof |
| CN107760072A (en) * | 2017-11-14 | 2018-03-06 | 百氏高涂料（苏州）有限公司 | A kind of Ludox polymerize external wall Nano self-cleaning coating and technology of preparing with graphene |
| CN109554110A (en) * | 2018-11-26 | 2019-04-02 | 四川陆亨能源科技有限公司 | A kind of thermostable heat-conductive self-cleaning coating and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116589878A (en) * | 2023-07-19 | 2023-08-15 | 北京碧海云智新材料技术有限公司 | Long-acting self-cleaning graphene ceramic water paint and preparation method and application thereof |
| CN116589878B (en) * | 2023-07-19 | 2023-10-24 | 北京碧海云智新材料技术有限公司 | Long-acting self-cleaning graphene ceramic water paint and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101734945B (en) | Permeable organic silicon nano water-proof protective agent and preparation method thereof | |
| CN103173045B (en) | A kind of nano concave earth inorganic zinc-rich protective system and preparation method thereof | |
| CN102795786B (en) | super-hydrophobic self-cleaning coating and preparation method thereof | |
| CN101948574B (en) | Hydrophobic chitosan film containing hydrophobic nano silicon dioxide particles and preparation method thereof | |
| CN102219555B (en) | A kind of multifunctional concrete structure durable protective agent and its preparation and application method | |
| CN103170255B (en) | Nano-meter SiO_2 2the preparation method of/cellulose composite separating film | |
| CN115960496B (en) | Weather-resistant corrosion-resistant metal fluorocarbon coating and preparation method thereof | |
| CN113462207B (en) | Photocatalytic self-cleaning composite coating and preparation method thereof | |
| CN115725223B (en) | Anti-icing hydrophobic coating, application thereof and preparation method of anti-icing hydrophobic coating | |
| CN108659600B (en) | Super-amphiphobic self-cleaning fluorine-silicon coating material and preparation method thereof | |
| CN108912754A (en) | A kind of super-hydrophobic SiO2The preparation method and application of nano functional liquid | |
| CN111635677A (en) | Waterproof coating | |
| CN111826030A (en) | Graphene external wall panel self-cleaning coating and preparation method thereof | |
| CN106082692A (en) | Self-cleaning surface structure of Nanometer dustproof and preparation method thereof | |
| Li et al. | Study of water repellency and corrosion of STA-PFOA modified mortar | |
| CN115537050A (en) | Self-cleaning nanoparticle/organogel composite super-hydrophobic coating and preparation method thereof | |
| He et al. | Enhanced waterproof performance of superhydrophobic SiO2/PDMS coating | |
| CN105602301A (en) | Inorganic hydrophobic antifouling glaze used for porcelain insulator as well as preparation method and application thereof | |
| CN116769344B (en) | Fluorinated graphene/SiO2Fluorosilane composite material, preparation method thereof and super-hydrophobic coating | |
| CN1176169C (en) | Nano-hydrophilic aluminum foil coating material and preparation method thereof | |
| CN112680049A (en) | High-weather-resistance anti-contamination siliceous real stone paint and preparation method thereof | |
| CN114276751A (en) | Preparation method and application of substrate-unlimited super-hydrophobic coating | |
| Li | Super-hydrophobic hybrid coatings preparation used by methyltrithoxysilane (MTES) and tetraethylorthosilicate (TEOS) | |
| CN1388192A (en) | Paint containing color ore powder | |
| CN117467314B (en) | Preparation and application of a modified shell powder super-hydrophobic nanomaterial and its coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201027 |
|
| RJ01 | Rejection of invention patent application after publication |