CN112358780A - Coating and preparation method and application thereof - Google Patents
Coating and preparation method and application thereof Download PDFInfo
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- CN112358780A CN112358780A CN202011247761.9A CN202011247761A CN112358780A CN 112358780 A CN112358780 A CN 112358780A CN 202011247761 A CN202011247761 A CN 202011247761A CN 112358780 A CN112358780 A CN 112358780A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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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
- 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
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a coating and a preparation method and application thereof. The coating comprises, by weight, 15-30 parts of a sand-containing base paint, 10-15 parts of a continuous phase emulsion, 10-15 parts of a protective adhesive composition and 40-50 parts of a real stone paint; the sand-containing base paint comprises, by weight, 55-75 parts of base paint and 25-45 parts of sand. The coating which has strong toughness, simple and efficient construction and wide application is obtained through the synergistic effect of the components, and can be coated on the building wall as decoration.
Description
Technical Field
The invention relates to the field of coatings, in particular to a coating and a preparation method and application thereof.
Background
The stone-like coating such as water-in-sand, water-in-water, stone paint and the like has a certain market because the modeling can achieve the effect which is almost different from that of stone. The colorful paint of water-in-water and sand-in-water can be made into various colors by manual color matching, and has good performances in the aspects of crack resistance, water resistance, stain resistance and the like. The stone-like paint is mixed with colors by using natural colored sand, has natural color, is not easy to fade, has natural texture, long service life and good stain resistance, is hard after being attached to a wall surface, and has wide application range.
However, the stone-like material has certain limitations, the colorful coating is thin in thickness, the colorful dots are fragile, the coating is not easy to scrape in batches, only spraying can be carried out, the spraying consumption is high, the plate surface can be fully covered only by spraying twice or even multiple times, however, the stone-like paint is few in color and variety, and the surface cannot be provided with some pattern effects, so that the application of the stone-like material is limited.
Disclosure of Invention
Therefore, in order to break through the use limitation of the existing stone-like materials, a coating which has good stone-like effect, simple and efficient construction and wide application is needed.
The specific technical scheme is as follows:
the invention provides a coating which is characterized by comprising, by weight, 15-30 parts of a sand-containing base paint, 10-15 parts of a continuous phase emulsion, 10-15 parts of a protective adhesive composition and 40-50 parts of a real stone paint;
the sand-containing base paint comprises, by weight, 55-75 parts of base paint and 25-45 parts of sandstone, wherein the base paint comprises, by weight, 0.4-0.8 part of cellulose A, 0.4-0.8 part of cellulose B, 0.1-0.2 part of a dispersing agent A, 0.1-0.2 part of an antifoaming agent A, 0.1-0.2 part of a bactericide A, 0.1-0.2 part of a mildew preventive, 0.1-0.2 part of an antifreezing agent A, 0.5-2 parts of titanium dioxide, 8-12 parts of kaolin, 15-25 parts of an emulsion A, 5-10 parts of a crosslinking agent, 1-2 parts of a film-forming assistant A, 0.2-0.5 part of a thickening agent A and 8-12 parts of a protective adhesive A, and water is supplemented to the total weight of 100 parts, wherein the crosslinking agent is at least one selected from modifiers of polyvinyl alcohol and polyvinyl alcohol, and the pH value of the base paint is 8-9.5;
the continuous phase emulsion comprises, by weight, 0.5-1 part of a bactericide B, 0.1-0.2 part of a defoaming agent B, 1-2 parts of a film-forming assistant B, 55-65 parts of an emulsion B and 0.2-0.5 part of a thickening agent B, and water is supplemented until the total weight is 100 parts, wherein the pH value of the continuous phase emulsion is 8-9.5;
the protective adhesive composition comprises 5-15 parts of protective adhesive B and 1-5 parts of a crosslinking assistant in parts by weight, and water is supplemented until the total weight part is 100 parts, wherein the crosslinking assistant is selected from at least one of aldehyde-containing organic matters, borax, boric acid and epoxy chloropropane;
the stone-like paint comprises, by weight, 0.3-0.5 part of cellulose C, 10-15 parts of stone-like paint emulsion, 5-10 parts of a film-forming auxiliary agent C, 0.1-0.2 part of a defoaming agent C, 0.1-0.2 part of a dispersing agent B, 0.5-1 part of an antifreezing agent B, 0.5-1 part of a thickening agent C and 55-65 parts of natural colored sand, and water is supplemented until the total weight is 100 parts, wherein the pH value of the stone-like paint is 8-9.5.
In one embodiment, the cellulose A, the cellulose B and the cellulose C are respectively and independently selected from at least one of hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose and surfactant modified hydroxyethyl cellulose, wherein the surfactant is selected from at least one of amphoteric surfactant and anionic surfactant, and the relative molecular weight of the cellulose A, the cellulose B and the cellulose C is 100000-130000.
In one embodiment, the dispersant a and the dispersant B are each independently selected from at least one of ammonium polyacrylate salt and ammonium polycarboxylate salt.
In one embodiment, the bactericide a and the bactericide B each independently contain at least one of chloro-methylisothiazolinone and benzisothiazolinone.
In one embodiment, the antifreeze a and antifreeze B are glycols.
In one embodiment, the protective paste a and the protective paste B are each independently selected from at least one of lithium magnesium silicate and a modification of lithium magnesium silicate, wherein the modification of lithium magnesium silicate is sodium pyrophosphate-modified lithium magnesium silicate.
In one embodiment, the emulsion a and the emulsion B are each independently selected from at least one of a pure acrylic emulsion and a silicone acrylic emulsion.
In one embodiment, the modified polyvinyl alcohol is at least one modified polyvinyl alcohol selected from the group consisting of polyvinyl acetate with a relative molecular weight of 30000-100000, acrylic emulsion, silica sol, epoxy resin, polysaccharide with a relative molecular weight of 2000-50000, polysaccharide derivative with a relative molecular weight of 2000-50000 and nano-silica with a particle size of 1-50 nm.
The invention also provides a preparation method of the coating, which comprises the following steps:
s1, preparing materials according to the raw material formula of the coating;
s2, respectively preparing the sand-containing base paint, the continuous phase emulsion, the protective adhesive composition and the real stone paint;
s3, adding the sand-containing base paint into the protective adhesive composition, granulating, adding the continuous phase emulsion and the real stone paint, and uniformly stirring.
The invention also provides an application of the coating, and the coating is coated on a building wall as decoration.
Compared with the prior art, the invention has the following beneficial effects:
the coating adopts polyvinyl alcohol or modified substances thereof as a main crosslinking agent, at least one of aldehyde-group-containing organic matters, borax, boric acid and epoxy chloropropane as a crosslinking auxiliary agent, and is applied to basic paint components in the stone-like coating.
Drawings
FIG. 1 is a graph showing the effects of coating with the paint prepared in example 1.
Detailed Description
The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a coating which comprises, by weight, 15-30 parts of a sand-containing base paint, 10-15 parts of a continuous phase emulsion, 10-15 parts of a protective adhesive composition and 40-50 parts of a real stone paint. The sand-containing base paint comprises, by weight, 55-75 parts of base paint and 25-45 parts of 90-mesh sand.
The base paint comprises, by weight, 0.4-0.8 parts of cellulose A, 0.4-0.8 parts of cellulose B, 0.1-0.2 parts of a dispersing agent A, 0.1-0.2 parts of a defoaming agent A, 0.1-0.2 parts of a bactericide A, 0.1-0.2 parts of a mildew preventive, 0.1-0.2 parts of an antifreezing agent A, 0.5-2 parts of titanium dioxide, 8-12 parts of kaolin, 15-25 parts of an emulsion A, 5-10 parts of a crosslinking agent, 1-2 parts of a film forming auxiliary agent A, 0.2-0.5 parts of a thickening agent A and 8-12 parts of a protective adhesive A, and water is supplemented until the total weight is 100 parts, wherein the pH value of the base paint is 8-9.5.
Specifically, the pH value of the base paint is adjusted to 8-9.5 by using a pH regulator A, and further, the pH regulator A is 0.1-0.2 part by weight.
Further, the crosslinking agent used in the base paint is selected from at least one of polyvinyl alcohol and a modified product of polyvinyl alcohol.
Specifically, the modified polyvinyl alcohol is at least one modified polyvinyl alcohol selected from polyvinyl acetate with a relative molecular weight of 30000-100000, acrylic emulsion, silica sol, epoxy resin, polysaccharide with a relative molecular weight of 2000-50000, polysaccharide derivative with a relative molecular weight of 2000-50000 and nano silicon dioxide with a particle size of 1-50 nm.
Preferably, the modified polyvinyl alcohol is at least one of a polysaccharide having a relative molecular weight of 2000 to 50000 and a polysaccharide derivative having a relative molecular weight of 2000 to 50000, specifically, the polysaccharide may be, for example, cellulose or dextran, and the polysaccharide derivative may be, for example, carboxymethyl cellulose ether, methyl cellulose, hydroxyethyl cellulose or hydroxypropyl cellulose.
The polyvinyl alcohol has a large amount of peculiar hydroxyl groups, can easily absorb moisture in the air, and can improve the characteristics of poor water resistance and poor stability of the polyvinyl alcohol by introducing other active monomers and groups or changing a side chain structure through modification.
The continuous phase emulsion comprises the following raw material components in parts by weight: 0.5-1 part of bactericide B, 0.1-0.2 part of defoamer B, 1-2 parts of film-forming assistant B, 55-65 parts of emulsion B and 0.2-0.5 part of thickener B, and supplementing water to 100 parts by weight, wherein the pH value of the continuous phase emulsion is 8-9.5.
Specifically, the pH value of the continuous phase emulsion is adjusted to 8-9.5 by using a pH adjusting agent B, and further, the pH adjusting agent B is 0.2-0.4 part by weight.
The protective adhesive composition comprises the following raw material components in parts by weight: 5-15 parts of protective adhesive B and 1-5 parts of crosslinking assistant, and supplementing water to 100 parts of the total weight.
In a specific example, the crosslinking assistant is at least one selected from aldehydes, borax, boric acid, epichlorohydrin and the like, and preferably, the crosslinking assistant is borax.
Polyvinyl alcohol and modified substances thereof are used as a main cross-linking agent, boric acid solution is used as a cross-linking auxiliary agent, boric acid generated by dissolving borax in water is utilized, borate ions can be bonded with alcoholic hydroxyl groups in the polyvinyl alcohol through hydrogen bonds or condensed, and a polymer with good elasticity, strong toughness and improved water permeability is formed.
The stone-like paint comprises, by weight, 0.3-0.5 part of cellulose C, 10-15 parts of stone-like paint emulsion, 5-10 parts of a film-forming auxiliary agent C, 0.1-0.2 part of a defoaming agent C, 0.1-0.2 part of a dispersing agent B, 0.5-1 part of an antifreezing agent B, 0.5-1 part of a thickening agent C and 55-65 parts of natural colored sand, water is supplemented until the total weight is 100 parts, and the pH value of the stone-like paint is adjusted to be 8-9.5 by using a pH adjusting agent C.
Specifically, a pH regulator C is used for regulating the pH value of the real stone paint to 8-9.5, and further 0.1-0.2 part by weight of the pH regulator C.
In a specific example, the cellulose A, the cellulose B and the cellulose C are respectively and independently selected from at least one of hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose and surfactant modified hydroxyethyl cellulose, wherein the surfactant is selected from at least one of amphoteric surfactant and anionic surfactant, and the relative molecular weight of the cellulose A, the cellulose B and the cellulose C is 8000-12000.
The hydrophobically modified hydroxyethyl cellulose is obtained by introducing a hydrophobic group such as a C1-C18 alkyl group into hydroxyethyl cellulose.
Further, the amphoteric surfactant may be, for example, at least one of dodecylamine propionate and dodecylhydroxypropyl phosphate betaine; the anionic surfactant may be, for example, at least one of sodium dodecylbenzenesulfonate, sodium α -alkenylsulfonate, sodium fatty alcohol ether sulfate, isooctanol phosphate and sodium lauryl sulfate.
In a specific example, the dispersant a and the dispersant B are each independently selected from at least one of an ammonium polyacrylate salt and an ammonium polycarboxylate salt.
In a specific example, the bactericide a and the bactericide B each independently contain at least one of chloro-methylisothiazolinone and benzisothiazolinone.
In one specific example, the antifreeze a and antifreeze B are glycols, preferably, the antifreeze a and antifreeze B are glycols.
In a specific example, the protective paste a and the protective paste B are each independently selected from at least one of magnesium lithium silicate and a modification of magnesium lithium silicate, specifically, the modification of magnesium lithium silicate is sodium pyrophosphate-modified magnesium lithium silicate.
In a specific example, emulsion a and emulsion B are each independently selected from at least one of a pure acrylic emulsion and a silicone acrylic emulsion.
The pH adjusting agent A, pH, the pH adjusting agent B and the pH adjusting agent C both contain 2-amino-2-methyl-1-propanol.
According to the invention, through researches, the main reason that the traditional stone-like coating is difficult to scrape and brush is low color point toughness, but the polyvinyl alcohol and the modifier thereof are crosslinked with boric acid, a certain amount of pH regulator is added into a coating system, the system can be stabilized due to the repulsion action of space effect and charge in a constructed alkaline system, the synergistic action is carried out by utilizing a large amount of hydroxyl and hydroxyethyl groups in hydroxyethyl cellulose and protective glue, the crosslinking degree of each component in the basic paint is further enhanced, the toughness is obviously enhanced, and the compounded coating has good stone-like effect, is simple and easy to construct, is high in efficiency and is wide in application.
The invention also provides a preparation method of the coating, which comprises the following steps:
s1, preparing materials according to the raw material formula of the coating;
s2, preparing a sand-containing base paint, a continuous phase emulsion, a protective adhesive composition and a real stone paint respectively;
and S3, adding the sand-containing base paint into the protective adhesive composition, granulating, adding the continuous phase emulsion and the stone paint, and uniformly stirring.
Specifically, the preparation method of the sand-containing base paint comprises the following steps: after water is added, slowly adding cellulose A in the stirring process, sequentially adding a defoaming agent A, a bactericide A, a mildew preventive, an antifreezing agent A, titanium dioxide, kaolin and a pH regulator A in sequence, adjusting the pH value to 8-9.5, stirring at a high speed of over 1000r/m for 15-20 minutes, reducing the rotation speed to 600r/m, adding an emulsion A, a film-forming assistant A, a crosslinking agent, a thickening agent A and a protective adhesive A, and stirring for 20 minutes. After standing for 12 hours and completely stabilizing, sand was added.
Specifically, the preparation method of the continuous phase emulsion comprises the following steps: sequentially adding water, a bactericide B, a defoaming agent B, pH regulator B, a film-forming assistant B, an emulsion B and a thickening agent B, adjusting the pH value to 8-9.5, and stirring at the rotating speed of 600r/m for 15-20 minutes.
Specifically, the preparation method of the protective adhesive composition comprises the following steps: adding water into a dispersion cylinder, slowly adding a small amount of protective adhesive B powder in the stirring process at a rotating speed of over 1000r/m, stirring at a high speed until the powder is completely dissolved, adding a crosslinking assistant with a pre-dissolving concentration of 5-10%, and stirring for 5-10 minutes.
Specifically, the preparation method of the stone-like paint comprises the following steps: sequentially adding water, cellulose C, a really stone paint emulsion, a film forming aid C, a defoaming agent C, a dispersing agent B, an antifreezing agent B, a thickening agent C, a pH regulator C and the like, adjusting the pH value to 8-9.5, stirring at the rotating speed of 600r/m for 15-20 minutes, adding natural colored sand, and uniformly stirring.
The coating obtained by the preparation method of the coating can be coated on building walls for decoration in a batch scraping mode, the color points of the coating are not easy to damage, and the stone imitation effect is good.
Specific examples are provided below to further illustrate the coating of the present invention and the method of preparing the same in detail.
The raw materials in the following embodiments are commercially available unless otherwise specified.
Cellulose A having a molecular weight of 8000-12000 is purchased from Hish blue with a model number of 250HHBR NatrosolTMHydroxyethyl cellulose (HEC).
Cellulose B having a molecular weight of 8000-12000 is available from Hish under the type of 250HBR NatrosolTMHydroxyethyl cellulose (HEC).
The bactericide was purchased from the tror british model ACTICIDE MBS 5050 as a bactericidal preservative.
The mold inhibitor was purchased from rohm and haas model 342.
The antifreeze is ethylene glycol available from morning chemical industry, Inc. of Guangzhou city.
The pH regulator is purchased from Dow and is a multifunctional auxiliary agent AMP-95.
Titanium dioxide is purchased from Topython herboria and has the model of BILLIONS BLR-896.
Kaolin was purchased from Zexi and was 80L of white cedar kaolin.
Emulsion A of the base paint was purchased from Badifu, model RS-3799 silicone acrylic emulsion.
Polyvinyl alcohol was purchased from Weifang Ming Australia chemical Co., Ltd and was of PVA1788 powder type.
The coalescing agent was purchased from Iseman and was an alcohol ester dodecaXANOL.
The thickener is purchased from the Dow chemical industry and is an alkali swelling thickener TT-935.
The protective rubber powder was purchased from Pico, Inc. under model number S482.
The sandstone is purchased from 90-mesh snowflake white sand of Huachang New Material Co., Ltd, Happy State, Guangxi province.
Emulsion B as the continuous phase was a silicone-acrylic emulsion available from Badifu, model RS-3799A.
Borax was purchased from industrial grade Borax from Zibohanson chemical Co., Ltd.
The real stone paint emulsion is purchased from Dow and is Primal TX-100 real stone paint emulsion.
The dispersant was purchased from dow and is available as the OROTAN 1618 dispersant.
The natural color sand is purchased from mineral natural color sand (Taixing green, Taixing red and grey) of 70-90 meshes.
Example 1
The embodiment provides a coating which comprises, by weight, 30 parts of a sand-containing base paint, 15 parts of a continuous phase emulsion, 15 parts of a protective adhesive composition and 40 parts of a real stone paint; the sand-containing base paint comprises, by weight, 60 parts of base paint and 40 parts of 90-mesh sandstone.
The base paint comprises, by weight, 43 parts of water, 0.6 part of cellulose A, 0.6 part of cellulose B, 0.2 part of a dispersing agent A, 0.2 part of a defoaming agent A, 0.2 part of a bactericide A, 0.2 part of a mildew preventive, 0.2 part of an antifreezing agent A, 0.2 part of a pH regulator A, 1 part of titanium dioxide, 10 parts of kaolin, 25 parts of an emulsion A, 5 parts of a crosslinking agent, 1.3 parts of a film-forming additive A, 0.3 part of a thickening agent A and 12 parts of a protective adhesive A.
The continuous phase emulsion comprises, by weight, 36 parts of water, 1 parts of bactericide B, 0.2 part of defoaming agent B, 0.2 part of pH regulator B, 2 parts of film-forming assistant B, 60 parts of emulsion B and 0.6 part of thickening agent B.
The protective adhesive composition comprises 94 parts by weight of water, 5 parts by weight of protective adhesive B and 1 part by weight of crosslinking assistant.
The stone-like paint comprises, by weight, 15 parts of water, 0.5 part of cellulose C, 15 parts of stone-like paint emulsion, 7 parts of a film-forming assistant C, 0.1 part of a defoaming agent C, 0.2 part of a dispersing agent B, 0.2 part of a pH regulator C, 1 parts of an antifreezing agent B, 1 parts of a thickening agent C and 60 parts of natural colored sand.
The preparation method of the coating and the raw materials in the embodiment is as follows:
preparation of the crosslinking agent:
according to the formula proportion of the embodiment, water is firstly added into a dispersion cylinder at room temperature, a small amount of cellulose A is slowly added in the stirring process at the rotating speed of 1200r/m, a pH regulator is added, the mixture is stirred for 10 minutes until the powder is completely dissolved, then polyvinyl alcohol is added after the mixture is heated to 90 ℃, and the mixture is stirred for 1 hour to be fully dissolved.
Preparation of a crosslinking assistant:
according to the formula proportion of the embodiment, water and borax are added at 60 ℃ and stirred for 10 minutes to be fully dissolved.
Preparing a sand-containing base paint:
according to the formula proportion of the embodiment, after water is added, cellulose B is slowly added in the stirring process, then the defoamer A, the bactericide A, the mildew preventive, the antifreezing agent A, the titanium pigment, the kaolin and the pH regulator A are sequentially added, the pH is adjusted to 9, after the high-speed stirring is carried out at the rotating speed of 1000r/m for 20 minutes, the rotating speed is reduced to 600r/m, the emulsion A, the film-forming assistant A, the cross-linking agent, the thickening agent A and the protective adhesive A are added, and the stirring is carried out for 20 minutes. After the mixture is placed for 12 hours and completely stabilized, sand is added in proportion.
Preparation of continuous phase emulsion:
according to the formula proportion of the embodiment, water, a bactericide B, an antifoaming agent B, a film-forming aid B, an emulsion B, a thickening agent B and a pH regulator B are sequentially added, the pH is regulated to 9, and the mixture is stirred for 20 minutes at the rotating speed of 600 r/m.
Preparation of the protective adhesive composition:
according to the formula proportion of the embodiment, water is firstly added into a dispersion cylinder, a small amount of protective glue B powder is slowly added in the stirring process, the rotating speed is 1200r/m, the high-speed stirring is carried out for 60 minutes until the powder is completely dissolved, then the crosslinking assistant with the pre-dissolving concentration of 5 percent is added, and the stirring is carried out for 5 minutes.
Preparing the stone-like paint:
according to the formula proportion of the embodiment, water, cellulose C, a real stone paint emulsion, a film forming additive C, a defoaming agent C, a dispersing agent B, an antifreezing agent B, a thickening agent C and a pH regulator C are sequentially added, the pH is adjusted to 9, the natural colored sand is added after stirring for 20 minutes at the rotation speed of 600r/m, and the mixture is uniformly stirred.
Preparing the coating:
according to the formula proportion of the embodiment, the color-mixed sand-containing base paint is firstly taken and added into the protective adhesive composition solution, a granulator is used for granulation, and then the continuous phase and the stone paint are added and stirred uniformly.
Example 2
The weight parts of the components and the preparation method in the example 2 are the same as those in the example 1, except that the crosslinking assistant is not added, and the components are replaced by water.
Example 3
The weight parts of the components and the preparation method in example 3 are the same as those in example 1, except that the crosslinking agent is replaced by carboxymethyl cellulose ether modified polyvinyl alcohol, and the rest of the components are unchanged.
Comparative example 1
The components of comparative example 1 were identical in parts by weight and preparation method to those of example 1, except that the crosslinking agent and the crosslinking aid were not added, and the components were replaced with water.
Comparative example 2
The components in comparative example 2 were in the same weight parts and preparation method as in example 1, except that the crosslinking agent was not added, only the crosslinking aid was added, and the components were replaced with water.
The samples obtained in the examples and comparative examples were subjected to toughness strength and overall effect tests.
The method for testing the toughness strength comprises the following steps: mixing the base paint with sandstone, adding the protective adhesive composition, and observing the maximum grain size of the color point under high-speed stirring by a dispersion disc with the linear speed of 6m/s, wherein the grain size is large and the toughness is strong.
The test method of the overall effect comprises the following steps: after preparing a finished product according to the components, scraping 1 kg of the finished product on the wall surface by the same person, and observing whether the color dots are damaged or not after scraping.
The results of the performance tests of the coatings obtained in examples 1 to 3 and comparative examples 1 to 2 are shown in Table 1, and FIG. 1 shows the effect of the coating obtained in example 1 on wall hanging.
TABLE 1 results of Performance test of the coatings obtained in examples 1 to 3 and comparative examples 1 to 2
According to the performance test results of the coatings of the examples 1-3 and the comparative examples 1-2, the maximum color point particle size of the coatings of the examples 1 and 3, which are compounded by using the crosslinking agent and the crosslinking assistant, is larger, the toughness is the best, and meanwhile, the coatings of the examples 1 and 3 are easy to scrape on the color point of the wall without damage during construction.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The coating is characterized by comprising, by weight, 15-30 parts of sand-containing base paint, 10-15 parts of continuous phase emulsion, 10-15 parts of protective adhesive composition and 40-50 parts of stone-like paint;
the sand-containing base paint comprises, by weight, 55-75 parts of base paint and 25-45 parts of sandstone, wherein the base paint comprises, by weight, 0.4-0.8 part of cellulose A, 0.4-0.8 part of cellulose B, 0.1-0.2 part of a dispersing agent A, 0.1-0.2 part of an antifoaming agent A, 0.1-0.2 part of a bactericide A, 0.1-0.2 part of a mildew preventive, 0.1-0.2 part of an antifreezing agent A, 0.5-2 parts of titanium dioxide, 8-12 parts of kaolin, 15-25 parts of an emulsion A, 5-10 parts of a crosslinking agent, 1-2 parts of a film-forming assistant A, 0.2-0.5 part of a thickening agent A and 8-12 parts of a protective adhesive A, and water is supplemented to the total weight of 100 parts, wherein the crosslinking agent is at least one selected from modifiers of polyvinyl alcohol and polyvinyl alcohol, and the pH value of the base paint is 8-9.5;
the continuous phase emulsion comprises, by weight, 0.5-1 part of a bactericide B, 0.1-0.2 part of a defoaming agent B, 1-2 parts of a film-forming assistant B, 55-65 parts of an emulsion B and 0.2-0.5 part of a thickening agent B, and water is supplemented until the total weight is 100 parts, wherein the pH value of the continuous phase emulsion is 8-9.5;
the protective adhesive composition comprises 5-15 parts of protective adhesive B and 1-5 parts of a crosslinking assistant in parts by weight, and water is supplemented until the total weight part is 100 parts, wherein the crosslinking assistant is selected from at least one of aldehyde-containing organic matters, borax, boric acid and epoxy chloropropane;
the stone-like paint comprises, by weight, 0.3-0.5 part of cellulose C, 10-15 parts of stone-like paint emulsion, 5-10 parts of a film-forming auxiliary agent C, 0.1-0.2 part of a defoaming agent C, 0.1-0.2 part of a dispersing agent B, 0.5-1 part of an antifreezing agent B, 0.5-1 part of a thickening agent C and 55-65 parts of natural colored sand, and water is supplemented until the total weight is 100 parts, wherein the pH value of the stone-like paint is 8-9.5.
2. The coating of claim 1, wherein cellulose A, cellulose B, and cellulose C are each independently selected from at least one of hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, and surfactant modified hydroxyethyl cellulose, wherein the surfactant is selected from at least one of amphoteric surfactants and anionic surfactants, and wherein the relative molecular weights of cellulose A, cellulose B, and cellulose C are 100000-130000.
3. The coating of claim 1, wherein dispersant a and dispersant B are each independently selected from at least one of ammonium polyacrylate and ammonium polycarboxylate.
4. The coating according to claim 1, wherein the bactericide a and the bactericide B each independently contain at least one of chloro-methylisothiazolinone and benzisothiazolinone.
5. The coating of claim 1, wherein antifreeze a and antifreeze B are glycols.
6. The coating of claim 1, wherein each of the protective gum a and protective gum B is independently selected from at least one of a magnesium lithium silicate and a modification of the magnesium lithium silicate, wherein the modification of the magnesium lithium silicate is a sodium pyrophosphate modified magnesium lithium silicate.
7. The coating of claim 1, wherein emulsion a and emulsion B are each independently selected from at least one of a pure acrylic emulsion and a silicone acrylic emulsion.
8. The coating according to any one of claims 1 to 7, wherein the modified polyvinyl alcohol is at least one modified polyvinyl alcohol selected from the group consisting of polyvinyl acetate having a relative molecular weight of 30000 to 100000, acrylic emulsion, silica sol, epoxy resin, polysaccharide having a relative molecular weight of 2000 to 50000, polysaccharide derivative having a relative molecular weight of 2000 to 50000, and nanosilica having a particle size of 1nm to 50 nm.
9. The preparation method of the coating is characterized by comprising the following steps:
s1, preparing raw material formula of the coating according to any one of claims 1-8;
s2, preparing the sand-containing base paint, the continuous phase emulsion, the protective adhesive composition and the real stone paint respectively;
and S3, adding the sand-containing base paint into the protective adhesive composition, granulating, adding the continuous phase emulsion and the real stone paint, and uniformly stirring.
10. Use of a coating according to any one of claims 1 to 8 for the preparation of a building wall decoration.
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| CN113122099A (en) * | 2021-05-08 | 2021-07-16 | 福建省三棵树新材料有限公司 | Sand-in-sand mold colorful coating and preparation method thereof |
| CN113527935A (en) * | 2021-07-12 | 2021-10-22 | 福建格瑞诗化工科技有限公司 | Preparation method of additive material for replacing composite rock slices and additive material |
| CN113717599A (en) * | 2021-08-25 | 2021-11-30 | 北京莱恩斯新材料科技有限公司 | Base paint and colorful stone coating |
| CN114133812A (en) * | 2021-12-01 | 2022-03-04 | 福建省三棵树新材料有限公司 | Scraping liquid granite coating prepared based on secondary crosslinking technology |
| CN114410167A (en) * | 2022-01-24 | 2022-04-29 | 河北嘉宝莉涂料有限公司 | High-strength high-toughness sand-in-water multicolor paint and preparation method thereof |
| CN116285540A (en) * | 2023-02-15 | 2023-06-23 | 西卡德高(广州)企业管理有限公司 | Coating containing modified cross-linking agent and preparation method thereof |
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| CN116285540B (en) * | 2023-02-15 | 2024-03-01 | 西卡德高(广州)企业管理有限公司 | Coating containing modified cross-linking agent and preparation method thereof |
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Application publication date: 20210212 |