CN116535916A - Nanocomposite coating with heat insulation, wear resistance and/or antifouling functions, preparation method thereof and application thereof in building curtain wall - Google Patents
Nanocomposite coating with heat insulation, wear resistance and/or antifouling functions, preparation method thereof and application thereof in building curtain wall Download PDFInfo
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- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 44
- 238000009413 insulation Methods 0.000 title claims abstract description 38
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 37
- 239000010456 wollastonite Substances 0.000 claims abstract description 98
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 98
- 239000011521 glass Substances 0.000 claims abstract description 78
- 239000011324 bead Substances 0.000 claims abstract description 76
- 239000003607 modifier Substances 0.000 claims abstract description 37
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 23
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 18
- 229920001577 copolymer Polymers 0.000 claims abstract description 18
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- 229920000570 polyether Polymers 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 90
- 239000003795 chemical substances by application Substances 0.000 claims description 41
- 239000007864 aqueous solution Substances 0.000 claims description 40
- 238000002156 mixing Methods 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 27
- 238000000498 ball milling Methods 0.000 claims description 25
- 239000004115 Sodium Silicate Substances 0.000 claims description 20
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 20
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 20
- 238000004321 preservation Methods 0.000 claims description 15
- 229920001661 Chitosan Polymers 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 13
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 13
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 13
- 239000000661 sodium alginate Substances 0.000 claims description 13
- 235000010413 sodium alginate Nutrition 0.000 claims description 13
- 229940005550 sodium alginate Drugs 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- 239000000395 magnesium oxide Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 9
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 9
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 9
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 8
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 8
- HJVAFZMYQQSPHF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;boric acid Chemical compound OB(O)O.OCCN(CCO)CCO HJVAFZMYQQSPHF-UHFFFAOYSA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000008055 phosphate buffer solution Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000007853 buffer solution Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- 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
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a nano composite coating with heat insulation, wear resistance and/or antifouling function, which comprises the following raw materials in parts by weight: 30-40 parts of aqueous hydroxy acrylic emulsion, 15-20 parts of glass bead coordination modified nano wollastonite regulator, 5-10 parts of multi-functional modifier, 2-5 parts of dipropylene glycol methyl ether, 1-4 parts of polyether siloxane copolymer and 35-40 parts of acetone solvent. The nano composite coating adopts the water-based hydroxyl acrylic emulsion as a matrix, and is prepared by coordinating and modifying the nano wollastonite regulator and the multi-regulating function modifier through glass beads, the nano composite coating is coordinated and synergistic, and the prepared product has heat insulation and wear resistance which can be coordinately improved and excellent anti-fouling performance stability through the mutual assistance of dipropylene glycol methyl ether and polyether siloxane copolymer.
Description
Technical Field
The invention relates to the technical field of nano composite coating, in particular to a nano composite coating with heat insulation, wear resistance and/or antifouling functions, a preparation method thereof and application thereof in building curtain walls.
Background
Building curtain walls refer to the non-load bearing exterior wall enclosures of a building, typically consisting of panels (glass, metal plates, slate, ceramic plates, etc.) and rear supporting structures (aluminum beam uprights, steel structures, glass ribs, etc.). The curtain wall is an outer wall protection of a building, is not bearing, is hung like a curtain, is also called a hanging wall, and is a light wall body with a decoration effect commonly used in modern large-scale and high-rise buildings. The building enclosure structure consists of a structural frame and embedded plates, and does not bear the load and the action of a main body structure.
The existing nano composite coating is used on a building curtain wall, has poor heat insulation performance, has a general wear-resistant effect, is difficult to realize heat insulation, wear resistance coordination optimization improvement of products, has poor pollution resistance, and limits the use efficiency of the products.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a nano composite coating with heat insulation, wear resistance and/or antifouling functions, a preparation method thereof and application thereof in building curtain walls, so as to solve the problems in the prior art.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a nanocomposite coating with heat insulation, wear resistance and/or antifouling function, which comprises the following raw materials in parts by weight:
30-40 parts of aqueous hydroxy acrylic emulsion, 15-20 parts of glass bead coordination modified nano wollastonite regulator, 5-10 parts of multi-functional modifier, 2-5 parts of dipropylene glycol methyl ether, 1-4 parts of polyether siloxane copolymer and 35-40 parts of acetone solvent.
Preferably, the nano composite coating comprises the following raw materials in parts by weight:
35 parts of aqueous hydroxy acrylic emulsion, 17.5 parts of glass bead coordination modified nano wollastonite regulator, 7.5 parts of multi-regulating function modifier, 3.5 parts of dipropylene glycol methyl ether, 2.5 parts of polyether siloxane copolymer and 37.5 parts of acetone solvent.
Preferably, the preparation method of the glass bead coordination modified nano wollastonite regulator comprises the following steps:
s01: the nano wollastonite is sent into a lanthanum chloride solution which is 3 to 5 times of the nano wollastonite, and then sodium dodecyl sulfate accounting for 2 to 5 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 1 to 5 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 2-5% of the total amount of nano wollastonite into the S01 product, and stirring fully to obtain a nano wollastonite regulating compound agent;
s03: adding 5-10 parts of sodium silicate into 15-25 parts of water, stirring at 78-82 ℃ for 25-35min, and stirring for 550-700r/min to obtain sodium silicate aqueous solution;
s04: preheating glass beads for 15-25min at 45-50 ℃, and then adding chitosan aqueous solution accounting for 10-20% of the total amount of the preheated glass beads, silica sol accounting for 2-5% and sodium silicate aqueous solution accounting for 1-3% into the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1000-1500r/min, the ball milling time is 1-2h, and the pre-regulated glass beads are obtained after the ball milling is finished;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
Preferably, the mass fraction of the lanthanum chloride solution is 10-15%; the mass fraction of the chitosan aqueous solution is 4-8%.
Preferably, the stirring rotation speed of the stirring reaction in the step S05 is 800-1200r/min, the stirring time is 45-55min, and the stirring temperature is 45-50 ℃.
Preferably, the preparation method of the blending agent comprises the following steps:
the nanometer magnesia is sent to 120-130 ℃ for heat treatment for 10-20min, then cooled to 40-45 ℃ at the speed of 1-3 ℃/min, then heat is preserved, the heat preservation product is sent to sodium alginate aqueous solution which is 3-5 times of the heat preservation product, then cetyl trimethyl ammonium bromide and sodium lignin sulfonate which are 1-5% of the total amount of the heat preservation product are added, the mixture is stirred uniformly, and finally the mixture is washed and dried, thus obtaining the blending agent.
Preferably, the mass fraction of the sodium alginate aqueous solution is 15-20%.
Preferably, the preparation method of the multi-regulating functional modifier comprises the following steps:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 2-5% of phosphate buffer solution with pH value of 4.5 and stirring uniformly, finally adding 2-5% of silane coupling agent KH560, 1-5% of triisostearyl isopropyl titanate and 1-3% of triethanolamine borate, stirring fully, and obtaining the multi-functional modifier.
The invention provides a preparation method of a nano composite coating with heat insulation, wear resistance and/or antifouling functions, which comprises the following steps:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
The application of the nano composite coating with heat insulation, wear resistance and/or antifouling functions in building curtain walls.
Compared with the prior art, the invention has the following beneficial effects:
the nano composite coating adopts water-based hydroxyl acrylic emulsion as a matrix, and is prepared by coordinating and modifying a nano wollastonite regulator and a multi-regulating function modifier through glass beads, and is coordinated and synergistic, the prepared nano wollastonite regulator can be used as a matrix, the heat insulation and wear resistance of the product can be improved by mutually assisting dipropylene glycol methyl ether and polyether siloxane copolymer, meanwhile, the stability of the antifouling property of the product is excellent, the nano wollastonite regulator is prepared by coordinating and modifying the nano wollastonite with the nano wollastonite through lanthanum chloride solution, sodium dodecyl sulfate and carboxymethyl cellulose, the nano wollastonite has a needle-shaped structure, the reinforcing effect can be achieved, the nano magnesium oxide is subjected to heat treatment for 10-20min at 120-130 ℃, then is cooled to 40-45 ℃ at a speed of 1-3 ℃/min, then is subjected to heat preservation, then is uniformly stirred and is processed through cetyl trimethyl ammonium bromide and lignin sulfonate, the coordination and is subjected to uniform stirring, the prepared nano wollastonite regulator can be used as a base, the pre-regulated glass beads are subjected to preheating and activation, the glass beads are subjected to ball milling treatment through a chitosan aqueous solution, a silica sol and a sodium silicate aqueous solution, the pre-regulated glass beads are prepared, the nano wollastonite has a reinforcing effect, the nano wollastonite magnesium oxide is subjected to heat insulation and the heat insulation effect is further improved through coordinating and the heat insulation of the nano modified nano wollastonite regulator, the nano wollastonite is further coordinated and the heat insulation modified product is prepared by coordinating and the nano modified with the nano silicate, namely the nano silicate has the heat-resistant and heat-insulating modified product, and the antifouling function of the product is further improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The nano composite coating with the heat insulation, wear resistance and/or antifouling function comprises the following raw materials in parts by weight:
30-40 parts of aqueous hydroxy acrylic emulsion, 15-20 parts of glass bead coordination modified nano wollastonite regulator, 5-10 parts of multi-functional modifier, 2-5 parts of dipropylene glycol methyl ether, 1-4 parts of polyether siloxane copolymer and 35-40 parts of acetone solvent.
The nano composite coating of the embodiment comprises the following raw materials in parts by weight:
35 parts of aqueous hydroxy acrylic emulsion, 17.5 parts of glass bead coordination modified nano wollastonite regulator, 7.5 parts of multi-regulating function modifier, 3.5 parts of dipropylene glycol methyl ether, 2.5 parts of polyether siloxane copolymer and 37.5 parts of acetone solvent.
The preparation method of the glass bead coordination modified nano wollastonite regulator comprises the following steps:
s01: the nano wollastonite is sent into a lanthanum chloride solution which is 3 to 5 times of the nano wollastonite, and then sodium dodecyl sulfate accounting for 2 to 5 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 1 to 5 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 2-5% of the total amount of nano wollastonite into the S01 product, and stirring fully to obtain a nano wollastonite regulating compound agent;
s03: adding 5-10 parts of sodium silicate into 15-25 parts of water, stirring at 78-82 ℃ for 25-35min, and stirring for 550-700r/min to obtain sodium silicate aqueous solution;
s04: preheating glass beads for 15-25min at 45-50 ℃, and then adding chitosan aqueous solution accounting for 10-20% of the total amount of the preheated glass beads, silica sol accounting for 2-5% and sodium silicate aqueous solution accounting for 1-3% into the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1000-1500r/min, the ball milling time is 1-2h, and the pre-regulated glass beads are obtained after the ball milling is finished;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
The mass fraction of the lanthanum chloride solution in the embodiment is 10-15%; the mass fraction of the chitosan aqueous solution is 4-8%.
In the S05 of the embodiment, the stirring speed of the stirring reaction is 800-1200r/min, the stirring time is 45-55min, and the stirring temperature is 45-50 ℃.
The preparation method of the blending agent of the embodiment comprises the following steps:
the nanometer magnesia is sent to 120-130 ℃ for heat treatment for 10-20min, then cooled to 40-45 ℃ at the speed of 1-3 ℃/min, then heat is preserved, the heat preservation product is sent to sodium alginate aqueous solution which is 3-5 times of the heat preservation product, then cetyl trimethyl ammonium bromide and sodium lignin sulfonate which are 1-5% of the total amount of the heat preservation product are added, the mixture is stirred uniformly, and finally the mixture is washed and dried, thus obtaining the blending agent.
The mass fraction of the sodium alginate aqueous solution of the embodiment is 15-20%.
The preparation method of the multi-functional modifier comprises the following steps:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 2-5% of phosphate buffer solution with pH value of 4.5 and stirring uniformly, finally adding 2-5% of silane coupling agent KH560, 1-5% of triisostearyl isopropyl titanate and 1-3% of triethanolamine borate, stirring fully, and obtaining the multi-functional modifier.
The preparation method of the nanocomposite coating with heat insulation, wear resistance and/or antifouling functions comprises the following steps:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
The application of the nano composite coating with the heat insulation, wear resistance and/or antifouling functions in the building curtain wall is provided.
Example 1.
The nano composite coating with the heat insulation, wear resistance and/or antifouling function comprises the following raw materials in parts by weight:
30 parts of aqueous hydroxy acrylic emulsion, 15 parts of glass bead coordination modified nano wollastonite regulator, 5 parts of multi-regulating function modifier, 2 parts of dipropylene glycol methyl ether, 1 part of polyether siloxane copolymer and 35 parts of acetone solvent.
The preparation method of the glass bead coordination modified nano wollastonite regulator comprises the following steps:
s01: the nano wollastonite is sent into a lanthanum chloride solution which is 3 times of the nano wollastonite, and then sodium dodecyl sulfate accounting for 2 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 1 to 5 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 2% of the total amount of the nano wollastonite into the S01 product, and stirring the mixture fully to obtain a nano wollastonite regulating compound agent;
s03: adding 5 parts of sodium silicate into 15 parts of water, stirring at 78 ℃ for 25min, and stirring for 550r/min to obtain a sodium silicate aqueous solution;
s04: preheating glass beads for 15min at 45 ℃, and then adding chitosan aqueous solution, silica sol and sodium silicate aqueous solution, wherein the chitosan aqueous solution is 10% of the total amount of the preheated glass beads, and the sodium silicate aqueous solution is 2% of the total amount of the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1000r/min, the ball milling time is 1h, and the pre-regulated glass beads are obtained after the ball milling is finished;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
The mass fraction of the lanthanum chloride solution in the embodiment is 10%; the mass fraction of the chitosan aqueous solution is 4%.
In the stirring reaction in S05 of this example, the stirring speed was 800r/min, the stirring time was 45min, and the stirring temperature was 45 ℃.
The preparation method of the blending agent of the embodiment comprises the following steps:
and (3) sending the nano magnesium oxide into a sodium alginate aqueous solution with the temperature being 3 times that of the heat-preservation product, then adding cetyl trimethyl ammonium bromide and sodium lignin sulfonate with the total amount being 1% of the heat-preservation product, uniformly stirring, and finally washing and drying to obtain the blending agent.
The mass fraction of the sodium alginate aqueous solution of this example was 15%.
The preparation method of the multi-functional modifier comprises the following steps:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 2% of phosphoric acid buffer solution with pH value of 4.5, stirring uniformly, finally adding 2% of silane coupling agent KH560, 1% of triisostearyl isopropyl titanate and 1% of triethanolamine borate, stirring fully, and obtaining the multi-functional modifier.
The preparation method of the nanocomposite coating with heat insulation, wear resistance and/or antifouling functions comprises the following steps:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
The application of the nano composite coating with the heat insulation, wear resistance and/or antifouling functions in the building curtain wall is provided.
Example 2.
The nano composite coating with the heat insulation, wear resistance and/or antifouling function comprises the following raw materials in parts by weight:
40 parts of aqueous hydroxy acrylic emulsion, 20 parts of glass bead coordination modified nano wollastonite regulator, 10 parts of multi-regulating function modifier, 5 parts of dipropylene glycol methyl ether, 4 parts of polyether siloxane copolymer and 40 parts of acetone solvent.
The preparation method of the glass bead coordination modified nano wollastonite regulator comprises the following steps:
s01: the nano wollastonite is sent into 5 times of lanthanum chloride solution, and then sodium dodecyl sulfate accounting for 5 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 5 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 5% of the total amount of the nano wollastonite into the S01 product, and stirring the mixture fully to obtain a nano wollastonite regulating compound agent;
s03: adding 10 parts of sodium silicate into 25 parts of water, stirring for 35min at 82 ℃, and stirring for 700r/min to obtain a sodium silicate aqueous solution;
s04: preheating glass beads for 25min at 50 ℃, and then adding a chitosan aqueous solution accounting for 20% of the total amount of the preheated glass beads, a silica sol accounting for 5% and a sodium silicate aqueous solution accounting for 3% into the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1500r/min, the ball milling time is 2h, and the pre-regulated glass beads are obtained after the ball milling is finished;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
The mass fraction of the lanthanum chloride solution in the embodiment is 15%; the mass fraction of the chitosan aqueous solution is 8%.
In the stirring reaction in S05 of this example, the stirring speed was 1200r/min, the stirring time was 55min, and the stirring temperature was 50 ℃.
The preparation method of the blending agent of the embodiment comprises the following steps:
and (3) sending the nano magnesium oxide into 130 ℃ for heat treatment for 20min, cooling to 45 ℃ at a speed of 3 ℃/min, then preserving heat, sending the heat-preserving product into sodium alginate aqueous solution which is 5 times of the heat-preserving product, then adding cetyl trimethyl ammonium bromide and sodium lignin sulfonate which are 5% of the total amount of the heat-preserving product, uniformly stirring, and finally washing and drying to obtain the blending agent.
The mass fraction of the sodium alginate aqueous solution of this example was 20%.
The preparation method of the multi-functional modifier comprises the following steps:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 5% of phosphoric acid buffer solution with pH value of 4.5, stirring uniformly, finally adding 5% of silane coupling agent KH560, 5% of triisostearyl isopropyl titanate and 3% of triethanolamine borate, stirring fully, and obtaining the multi-functional modifier.
The preparation method of the nanocomposite coating with heat insulation, wear resistance and/or antifouling functions comprises the following steps:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
The application of the nano composite coating with the heat insulation, wear resistance and/or antifouling functions in the building curtain wall is provided.
Example 3.
The nano composite coating with the heat insulation, wear resistance and/or antifouling function comprises the following raw materials in parts by weight:
35 parts of aqueous hydroxy acrylic emulsion, 17.5 parts of glass bead coordination modified nano wollastonite regulator, 7.5 parts of multi-regulating function modifier, 3.5 parts of dipropylene glycol methyl ether, 2.5 parts of polyether siloxane copolymer and 37.5 parts of acetone solvent.
The preparation method of the glass bead coordination modified nano wollastonite regulator comprises the following steps:
s01: the nano wollastonite is sent into 4 times of lanthanum chloride solution, and then sodium dodecyl sulfate accounting for 3.5 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 3 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 3.5% of the total amount of the nano wollastonite into the S01 product, and stirring the mixture fully to obtain a nano wollastonite regulating compound agent;
s03: adding 7.5 parts of sodium silicate into 20 parts of water, stirring for 30min at 80 ℃, and stirring for 650r/min to obtain a sodium silicate aqueous solution;
s04: preheating glass beads for 20min at 47 ℃, and then adding chitosan aqueous solution accounting for 15% of the total amount of the preheated glass beads, 3.5% of silica sol and 2% of sodium silicate aqueous solution into the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1250r/min, the ball milling time is 1.5h, and the ball milling is finished, thus obtaining the pre-regulated glass beads;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
The mass fraction of the lanthanum chloride solution in the embodiment is 12.5%; the mass fraction of the chitosan aqueous solution is 6%.
In the stirring reaction in S05 of this example, the stirring speed was 1000r/min, the stirring time was 50min, and the stirring temperature was 47 ℃.
The preparation method of the blending agent of the embodiment comprises the following steps:
and (3) sending the nano magnesium oxide into a sodium alginate aqueous solution with the temperature being 4 times that of the heat-preservation product, then adding cetyl trimethyl ammonium bromide with the total amount being 3% of the heat-preservation product and sodium lignin sulfonate with the total amount being 3.5% of the heat-preservation product, uniformly stirring, and finally washing and drying to obtain the blending agent.
The mass fraction of the sodium alginate aqueous solution of this example was 17.5%.
The preparation method of the multi-functional modifier comprises the following steps:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 3.5% of phosphoric acid buffer solution with pH value of 4.5 in the total amount of aluminum borate whisker, stirring uniformly, finally adding 3.5% of silane coupling agent KH560 in the total amount of aluminum borate whisker, 3% of triisostearyl isopropyl titanate in the total amount of aluminum borate whisker, and 2% of triethanolamine borate in the total amount of aluminum borate whisker, and stirring fully to obtain the multi-regulating function modifier.
The preparation method of the nanocomposite coating with heat insulation, wear resistance and/or antifouling functions comprises the following steps:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
The application of the nano composite coating with the heat insulation, wear resistance and/or antifouling functions in the building curtain wall is provided.
Comparative example 1.
The difference from example 3 is that no glass bead is added to coordinate the modified nano wollastonite regulator.
Comparative example 2.
The difference from example 3 is that the preconditioning glass beads are replaced by glass beads in the preparation of the glass bead coordination modified nano wollastonite regulator.
Comparative example 3.
The difference from example 3 is that no blending agent is added into the nano wollastonite adjusting compound agent in the preparation of the glass bead coordinated and modified nano wollastonite adjusting agent.
Comparative example 4.
The difference from example 3 is the preparation of the moderator:
and (3) sending the nano magnesium oxide into a sodium alginate aqueous solution with the concentration of 4 times, then adding hexadecyl trimethyl ammonium bromide with the concentration of 3% of the total amount of the nano magnesium oxide, uniformly stirring, finally washing with water, and drying to obtain the blending agent.
Comparative example 5.
The difference from example 3 is that in the preparation of the glass bead coordination modified nano wollastonite regulator, S01: the nano wollastonite is sent into deionized water with the concentration of 4 times, and then carboxymethyl cellulose with the concentration of 3 percent of the total nano wollastonite is added and stirred uniformly to replace the nano wollastonite.
Comparative example 6.
The difference from example 3 is that no multi-functional modifier is added.
Comparative example 7.
The difference from example 3 is that the preparation method of the multi-regulating functional modifier is different: adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, adding silane coupling agent KH560 accounting for 3.5% of the total amount of the aluminum borate whisker and triethanolamine borate accounting for 2% of the total amount of the aluminum borate whisker, and stirring fully to obtain the multi-functional modifier.
The products of examples 1-3 and comparative examples 1-7 were tested for performance as follows:
from examples 1-3 and comparative examples 1-7, the abrasion resistance and the heat conductivity coefficient in the embodiment 3 of the invention can be obviously improved in a coordinated manner, one of the glass bead coordination modification nano wollastonite regulator and the multi-adjustment function modifier is not added, the performance of the product has a variation trend, meanwhile, the preconditioning type glass bead in the preparation of the glass bead coordination modification nano wollastonite regulator is replaced by the glass bead, and the preparation method of the nano wollastonite regulation compound agent in the preparation of the glass bead coordination modification nano wollastonite regulator is different in that the regulator and the regulator are not added: in the preparation of the glass bead coordination modified nano wollastonite regulator, S01: the nano wollastonite is sent into deionized water with the concentration of 4 times, and then carboxymethyl cellulose accounting for 3 percent of the total amount of the nano wollastonite is added, and the nano wollastonite is uniformly stirred to replace the nano wollastonite and the preparation method of the multi-functional modifier is different; the performance of the product is in a poor trend, and the performance effect of the product is most remarkable only when the glass bead coordination modified nano wollastonite modifier prepared by the method is matched with the multi-functional modifier prepared by the method.
The invention coats the product on the building curtain wall with the coating thickness of 2mm, then dries for 12 hours at 30-40 ℃, then coats the building curtain wall with the dirt material with oil dirt, dust and sand according to the weight ratio of 2:1:1, then carries out wiping treatment, and tests the wiping force applied to clean the dirt material.
The products of examples 1-3 and comparative examples 1-7 were tested for performance as follows:
as can be seen from examples 1-3 and comparative examples 1-7, the wiping force in example 3 of the present invention is minimal, which can reach 1.2N, and cleaning of stains can be achieved;
the product prepared by the method not only can realize wear-resisting and heat-insulating coordination effects, but also has obvious pollution resistance and excellent performance effects.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The nano composite coating with heat insulation, wear resistance and/or antifouling functions is characterized by comprising the following raw materials in parts by weight:
30-40 parts of aqueous hydroxy acrylic emulsion, 15-20 parts of glass bead coordination modified nano wollastonite regulator, 5-10 parts of multi-functional modifier, 2-5 parts of dipropylene glycol methyl ether, 1-4 parts of polyether siloxane copolymer and 35-40 parts of acetone solvent.
2. The nanocomposite coating with heat insulation, wear resistance and/or antifouling function according to claim 1, wherein the nanocomposite coating comprises the following raw materials in parts by weight:
35 parts of aqueous hydroxy acrylic emulsion, 17.5 parts of glass bead coordination modified nano wollastonite regulator, 7.5 parts of multi-regulating function modifier, 3.5 parts of dipropylene glycol methyl ether, 2.5 parts of polyether siloxane copolymer and 37.5 parts of acetone solvent.
3. The nano composite coating with heat insulation, wear resistance and/or antifouling function according to claim 1, wherein the preparation method of the glass bead coordination modified nano wollastonite regulator is as follows:
s01: the nano wollastonite is sent into a lanthanum chloride solution which is 3 to 5 times of the nano wollastonite, and then sodium dodecyl sulfate accounting for 2 to 5 percent of the total amount of the nano wollastonite and carboxymethyl cellulose accounting for 1 to 5 percent of the total amount of the nano wollastonite are added and stirred uniformly;
s02: adding a blending agent accounting for 2-5% of the total amount of nano wollastonite into the S01 product, and stirring fully to obtain a nano wollastonite regulating compound agent;
s03: adding 5-10 parts of sodium silicate into 15-25 parts of water, stirring at 78-82 ℃ for 25-35min, and stirring for 550-700r/min to obtain sodium silicate aqueous solution;
s04: preheating glass beads for 15-25min at 45-50 ℃, and then adding chitosan aqueous solution accounting for 10-20% of the total amount of the preheated glass beads, silica sol accounting for 2-5% and sodium silicate aqueous solution accounting for 1-3% into the preheated glass beads; then the mixture is transferred to a ball mill for ball milling treatment, the ball milling rotating speed is 1000-1500r/min, the ball milling time is 1-2h, and the pre-regulated glass beads are obtained after the ball milling is finished;
s05: and (3) sending the pre-regulated glass beads into a nano wollastonite regulating compound agent for stirring reaction treatment, and after the stirring is finished, washing and drying to obtain the glass bead coordinated and modified nano wollastonite regulating agent.
4. A nanocomposite coating with heat insulation, wear resistance and/or stain resistance according to claim 3, wherein the lanthanum chloride solution has a mass fraction of 10-15%; the mass fraction of the chitosan aqueous solution is 4-8%.
5. The nanocomposite coating with heat insulation, wear resistance and/or antifouling function according to claim 3, wherein the stirring speed of the stirring reaction in S05 is 800-1200r/min, the stirring time is 45-55min, and the stirring temperature is 45-50 ℃.
6. A nanocomposite coating with thermal insulation, wear resistance and/or stain resistance according to claim 3, wherein the preparation method of the blending agent is as follows:
the nanometer magnesia is sent to 120-130 ℃ for heat treatment for 10-20min, then cooled to 40-45 ℃ at the speed of 1-3 ℃/min, then heat is preserved, the heat preservation product is sent to sodium alginate aqueous solution which is 3-5 times of the heat preservation product, then cetyl trimethyl ammonium bromide and sodium lignin sulfonate which are 1-5% of the total amount of the heat preservation product are added, the mixture is stirred uniformly, and finally the mixture is washed and dried, thus obtaining the blending agent.
7. The nanocomposite coating with heat insulation, wear resistance and/or antifouling function according to claim 6, wherein the mass fraction of the aqueous sodium alginate solution is 15-20%.
8. The nanocomposite coating with heat insulation, wear resistance and/or antifouling function according to claim 1, wherein the preparation method of the multi-functional modifier is as follows:
adding aluminum borate whisker into ethanol solvent according to the weight ratio of 1:3, then adding 2-5% of phosphate buffer solution with pH value of 4.5 and stirring uniformly, finally adding 2-5% of silane coupling agent KH560, 1-5% of triisostearyl isopropyl titanate and 1-3% of triethanolamine borate, stirring fully, and obtaining the multi-functional modifier.
9. A method for preparing a nanocomposite coating having heat insulation, abrasion resistance and/or antifouling functions according to any one of claims 1 to 8, comprising the steps of:
firstly, adding the aqueous hydroxy acrylic emulsion into an acetone solvent, and uniformly mixing and stirring;
and secondly, uniformly stirring the glass bead coordinated modified nano wollastonite regulator and the multi-regulating functional modifier, adding the mixture into the product obtained in the first step, and then adding dipropylene glycol methyl ether and polyether siloxane copolymer, continuously mixing and stirring the mixture sufficiently to obtain the nano composite coating.
10. Use of a nanocomposite coating having heat insulation, wear resistance and/or antifouling properties according to any of claims 1 to 9 in building curtain walls.
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