CN115109477A - Green environment-friendly exterior wall coating - Google Patents
Green environment-friendly exterior wall coating Download PDFInfo
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- CN115109477A CN115109477A CN202210815738.8A CN202210815738A CN115109477A CN 115109477 A CN115109477 A CN 115109477A CN 202210815738 A CN202210815738 A CN 202210815738A CN 115109477 A CN115109477 A CN 115109477A
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- exterior wall
- wall coating
- environment
- friendly exterior
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- Pending
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- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 49
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- 239000003973 paint Substances 0.000 claims abstract description 18
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000003607 modifier Substances 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 12
- 239000002250 absorbent Substances 0.000 claims abstract description 11
- 230000002745 absorbent Effects 0.000 claims abstract description 11
- 239000000049 pigment Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000013530 defoamer Substances 0.000 claims abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 11
- 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 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical group CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 8
- 229960002887 deanol Drugs 0.000 claims description 8
- 239000012972 dimethylethanolamine Substances 0.000 claims description 8
- 235000010413 sodium alginate Nutrition 0.000 claims description 8
- 239000000661 sodium alginate Substances 0.000 claims description 8
- 229940005550 sodium alginate Drugs 0.000 claims description 8
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 claims description 7
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229920002101 Chitin Polymers 0.000 claims description 5
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims description 5
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims description 5
- 235000012141 vanillin Nutrition 0.000 claims description 5
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 229960000892 attapulgite Drugs 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- 239000012964 benzotriazole Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 4
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 4
- 229920001519 homopolymer Polymers 0.000 claims description 4
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- 229910052625 palygorskite Inorganic materials 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims 1
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 5
- 238000005286 illumination Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 7
- 235000010215 titanium dioxide Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- -1 alcohol compound Chemical class 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011787 zinc oxide 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
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coatings, and particularly relates to a green environment-friendly exterior wall coating which comprises the following raw materials in parts by weight: 50-100 parts of acrylic emulsion, 50-100 parts of silica sol, 5-10 parts of modifier, 5-10 parts of pigment, 30-60 parts of filler, 5-10 parts of dispersant, 1-5 parts of defoamer, 1-5 parts of antibacterial agent, 1-5 parts of thickener, 1-5 parts of ultraviolet absorbent and 1-5 parts of pH regulator. The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product. The environment-friendly exterior wall coating disclosed by the invention can give consideration to both antibacterial property and illumination aging resistance, and has a good market application prospect.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a green environment-friendly exterior wall coating.
Background
The coating is traditionally named as paint in China. The coating is a viscous liquid prepared by coating a surface of an object to be protected or decorated with a continuous film capable of forming a firm adhesion with the object to be coated, usually mainly with a resin, an oil, or an emulsion, with or without a pigment or a filler, with a suitable additive, and with an organic solvent or water.
The paint for external wall is used for painting external vertical wall of building, so that the most important index is ultraviolet radiation resistance, and the paint does not change color after long-time radiation. Part of the exterior wall coating also requires water resistance and self-cleaning property. The paint film is hard and flat, and dirt can be washed off. The exterior wall paint can be used for painting interior walls because of the water resistance; the inner wall paint does not have the sun-proof function, so the inner wall paint cannot be used as the outer wall paint. When the in-service use process, the exterior wall coating still need compromise antibiotic and resistant illumination ageing behavior, for this reason, this application provides a green exterior wall coating.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a green environment-friendly exterior wall coating so that the exterior wall coating has antibacterial and illumination aging resistance.
In order to achieve the purpose, the invention provides the following technical scheme:
the green environment-friendly exterior wall coating comprises the following raw materials in parts by weight: 50-100 parts of acrylic emulsion, 50-100 parts of silica sol, 5-10 parts of modifier, 5-10 parts of pigment, 30-60 parts of filler, 5-10 parts of dispersant, 1-5 parts of defoamer, 1-5 parts of antibacterial agent, 1-5 parts of thickener, 1-5 parts of ultraviolet absorbent and 1-5 parts of pH regulator.
Preferably, the modifier is one or more of sodium alginate, sodium methyl silicate and potassium pyrophosphate.
Preferably, the filler is one or more of mica powder, titanium dioxide and calcium carbonate.
Preferably, the dispersant is one or more of acrylic acid homopolymer, special functional group acrylic acid copolymer and modified phosphonate.
Preferably, the defoaming agent is one or more of organic polyether ester, mineral oil, modified organic silicon and alcohol compound type.
Preferably, the antibacterial agent is one or more of silver ion antibacterial agent, chitin and vanillin.
Preferably, the thickener is one or more of hydroxyethyl cellulose, inorganic bentonite, attapulgite and aluminum silicate.
Preferably, the ultraviolet absorbent is one or more of phenyl ortho-hydroxybenzoate, benzotriazole and hexamethylphosphoric triamide.
Preferably, the pH adjuster is dimethylethanolamine.
The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the green environment-friendly exterior wall coating, the sodium methyl silicate and the potassium pyrophosphate are added into the acrylic emulsion and the silica sol, so that the coating net structure of the acrylic emulsion and the silica sol can be strengthened, the internal structure of the coating is stabilized, and the cracking resistance of the exterior wall coating is improved.
(2) According to the environment-friendly exterior wall coating, sodium alginate is added into sodium methyl silicate and potassium pyrophosphate, so that the dispersibility and stability of the modifier in the coating can be improved, and the adhesion, ageing resistance and other properties of the exterior wall coating can be further improved.
(3) According to the green environment-friendly exterior wall coating, dimethylethanolamine is used as a pH regulator, and can be used as a cosolvent of a water-based coating while the pH value is regulated; the antibacterial agent is added into the exterior wall coating, so that the antibacterial performance of the exterior wall coating is enhanced.
Detailed Description
The technical solutions of the present invention are described in detail below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, acrylic emulsions were purchased from Hubei Xin Rundji, Inc.; dimethylethanolamine was purchased from Shandong Yukang chemical Co., Ltd; the silica sol is purchased from Zhejiang Yuda chemical Co., Ltd; sodium methyl silicate was purchased from Zhejiang Chuangji organosilicon materials Co., Ltd; potassium pyrophosphate was purchased from shanghai source, leafy biotechnology limited; sodium alginate was purchased from Shanghai Merlin Biotech, Inc.; hydroxyethyl cellulose was purchased from Sustanlong, USA.
Example 1
The green environment-friendly exterior wall coating comprises the following raw materials in parts by weight: 50kg of acrylic emulsion, 50kg of silica sol, 5kg of sodium alginate, 5kg of titanium dioxide, 30kg of mica powder, 5kg of acrylic homopolymer, 1kg of organic polyether ester, 1kg of silver ion antibacterial agent, 1kg of hydroxyethyl cellulose, 1kg of phenyl o-hydroxybenzoate and 1kg of dimethylethanolamine.
The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
Example 2
The green environment-friendly exterior wall coating comprises the following raw materials in parts by weight: 60kg of acrylic emulsion, 60kg of silica sol, 3kg of sodium alginate, 3kg of sodium methylsilicate, 5kg of composite titanium white, 20kg of mica powder, 20kg of titanium dioxide, 6kg of special functional group acrylic copolymer, 2kg of mineral oil, 2kg of chitin, 2kg of inorganic bentonite, 2kg of benzotriazole and 2kg of dimethylethanolamine.
The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
Example 3
The green environment-friendly exterior wall coating comprises the following raw materials in parts by weight: 80kg of acrylic emulsion, 80kg of silica sol, 3kg of sodium alginate, 3kg of potassium pyrophosphate, 5kg of lithopone, 20kg of mica powder, 20kg of calcium carbonate, 8kg of modified phosphonates, 3kg of modified organosilicon, 3kg of vanillin, 3kg of convex-concave attapulgite, 3kg of hexamethyl phosphoric triamide and 3kg of dimethyl ethanolamine.
The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
Example 4
The green environment-friendly exterior wall coating comprises the following raw materials in parts by weight: 100kg of acrylic emulsion, 100kg of silica sol, 3kg of sodium alginate, 4kg of sodium methyl silicate, 3kg of potassium pyrophosphate, 5kg of zinc oxide, 20kg of mica powder, 20kg of titanium dioxide, 20kg of calcium carbonate, 3kg of acrylic homopolymer, 4kg of special functional group acrylic copolymer, 3kg of modified phosphonate, 1kg of organic polyether ester, 1kg of mineral oil, 1kg of modified organic silicon, 2kg of alcohol complex type, 1kg of silver ion antibacterial agent, 2kg of chitin, 2kg of vanillin, 1kg of hydroxyethyl cellulose, 1kg of inorganic bentonite, 1kg of convex-concave attapulgite, 2kg of aluminum silicate, 1kg of phenyl ortho-hydroxybenzoate, 2kg of benzotriazole, 2kg of hexamethylphosphoric triamide and 3kg of dimethylethanolamine.
The preparation method of the green environment-friendly exterior wall coating comprises the steps of firstly adding the pigment and the filler into the acrylic emulsion and the silica sol for mixing; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
The green environment-friendly exterior wall coating prepared in the examples 1 to 4 is subjected to an antibacterial performance test, which refers to a method for determining the antibacterial performance of the GB/T21886-2008 antibacterial coating. The antibacterial test takes escherichia coli ATYCC 25922 and staphylococcus aureus ATCC 6538 as examples, and specific test results are shown in the following table 1.
TABLE 1 antimicrobial testing
| Paint sample | The bactericidal activity of Escherichia coli/%) | Staphylococcus aureus bactericidal rate/%) |
| Example 1 | 98.8 | 99.1 |
| Example 2 | 98.6 | 99.2 |
| Example 3 | 99.2 | 98.9 |
| Example 4 | 99.8 | 99.9 |
As can be seen from the data in Table 1, the sterilization rates of Escherichia coli and Staphylococcus aureus in example 4 are higher than those in examples 1-3, and it can be seen that the three antibacterial agents of silver ion antibacterial agent, chitin and vanillin are 1: 2: 2, and the mixture is added into the preparation of the exterior wall coating, so that a better sterilization effect can be obtained compared with a single antibacterial agent.
In addition, the green environmental-friendly exterior wall coatings prepared in examples 1 to 5 were subjected to a yellowing resistance test according to ISO 11507: 1997, the specific test results are shown in table 2 below.
TABLE 2 yellowing resistance test
| Paint sample | Yellowing resistance Delta E (UVA 168h) |
| Example 1 | 0.8 |
| Example 2 | 0.9 |
| Example 3 | 0.8 |
| Example 4 | 0.4 |
As can be seen from the data in Table 2, the yellowing resistance test effect of the green environment-friendly exterior wall coating prepared in example 4 is obviously better than that of examples 1-3, and it can be concluded that: the combination of multiple ultraviolet absorbers can enhance the light aging resistance of the coating.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The green environment-friendly exterior wall coating is characterized by comprising the following raw materials in parts by weight: 50-100 parts of acrylic emulsion, 50-100 parts of silica sol, 5-10 parts of modifier, 5-10 parts of pigment, 30-60 parts of filler, 5-10 parts of dispersant, 1-5 parts of defoamer, 1-5 parts of antibacterial agent, 1-5 parts of thickener, 1-5 parts of ultraviolet absorbent and 1-5 parts of pH regulator.
2. The environment-friendly exterior wall coating as claimed in claim 1, wherein the modifier is one or more of sodium alginate, sodium methyl silicate and potassium pyrophosphate.
3. The environment-friendly exterior wall coating according to claim 1, wherein the filler is one or more of mica powder, titanium dioxide and calcium carbonate.
4. The environment-friendly exterior wall coating as claimed in claim 1, wherein the dispersant is one or more of acrylic acid homopolymer, special functional group acrylic acid copolymer and modified phosphonate.
5. The environment-friendly exterior wall coating as claimed in claim 1, wherein the defoaming agent is one or more of organic polyether ester, mineral oil, modified organosilicon and alcohol composite type.
6. The environment-friendly exterior wall coating as claimed in claim 1, wherein the antibacterial agent is one or more of silver ion antibacterial agent, chitin and vanillin.
7. The environment-friendly exterior wall coating as claimed in claim 1, wherein the thickener is one or more of hydroxyethyl cellulose, inorganic bentonite, attapulgite and aluminum silicate.
8. The environment-friendly exterior wall coating according to claim 1, wherein the ultraviolet absorber is one or more of phenyl ortho-hydroxybenzoate, benzotriazole and hexamethylphosphoric triamide.
9. The environment-friendly exterior wall coating as claimed in claim 1, wherein the pH regulator is dimethylethanolamine.
10. The method for preparing green environmental-friendly exterior wall paint according to any one of claims 1-8, wherein the pigment and the filler are firstly added into the acrylic emulsion and the silica sol to be mixed; then adding a modifier, a dispersant and a defoaming agent for grinding; and finally, adding the antibacterial agent, the thickening agent, the ultraviolet absorbent and the pH regulator, and uniformly stirring to obtain a finished paint product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815738.8A CN115109477A (en) | 2022-07-12 | 2022-07-12 | Green environment-friendly exterior wall coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815738.8A CN115109477A (en) | 2022-07-12 | 2022-07-12 | Green environment-friendly exterior wall coating |
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| CN115109477A true CN115109477A (en) | 2022-09-27 |
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| CN202210815738.8A Pending CN115109477A (en) | 2022-07-12 | 2022-07-12 | Green environment-friendly exterior wall coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116120835A (en) * | 2023-02-23 | 2023-05-16 | 广西南宁维一防腐科技有限公司 | Wall coating and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114525047A (en) * | 2022-01-25 | 2022-05-24 | 广东华达轩建筑工程有限公司 | Green environment-friendly exterior wall coating and preparation method thereof |
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| CN1470574A (en) * | 2003-06-16 | 2004-01-28 | 上海维来新材料科技有限公司 | Antibacterial negative ion coating |
| CN103450751A (en) * | 2013-08-22 | 2013-12-18 | 吴江市物华五金制品有限公司 | Antibacterial wet-wiping-resistant interior wall coating |
| CN107474652A (en) * | 2017-09-30 | 2017-12-15 | 南京仙草堂生物科技有限公司 | A kind of nano paint of ageing-resistant antibacterial |
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| CN116120835A (en) * | 2023-02-23 | 2023-05-16 | 广西南宁维一防腐科技有限公司 | Wall coating and preparation method thereof |
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