CN112852230B - Base paint for sand-in-water multicolor paint for exterior wall and preparation method thereof - Google Patents

Base paint for sand-in-water multicolor paint for exterior wall and preparation method thereof Download PDF

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CN112852230B
CN112852230B CN202011639515.8A CN202011639515A CN112852230B CN 112852230 B CN112852230 B CN 112852230B CN 202011639515 A CN202011639515 A CN 202011639515A CN 112852230 B CN112852230 B CN 112852230B
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water
weight
paint
emulsion
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CN112852230A (en
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章俊华
倪宁
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Chuzhou Shenghao Material Technology Co ltd
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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
    • C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02—Homopolymers or copolymers of hydrocarbons
    • C09D125/04—Homopolymers or copolymers of styrene
    • C09D125/08—Copolymers of styrene
    • C09D125/14—Copolymers of styrene with unsaturated esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • 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
    • C09D7/61—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
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0812—Aluminium
    • 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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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention relates to a base paint for sand-in-water multicolor paint for an outer wall and a preparation method thereof, wherein the base paint comprises the following components in parts by weight: 100-120 parts of water, 90-110 parts of elastic emulsion, 30-40 parts of acrylic emulsion, 20-25 parts of fluorine-containing acrylate polymer, 10-15 parts of rutile titanium dioxide, 40-50 parts of kaolin, 3-7 parts of aqueous aluminum paste, 0.5-1.5 parts of dispersant, 0.5-1 part of multifunctional assistant and 1-3 parts of film-forming assistant; according to the application, the elastic emulsion and the acrylic emulsion are used as a polymerization system, rutile type titanium dioxide and kaolin are added for enhancement, the fluorine-containing acrylate polymer and the fly ash are added for compounding, the compactness of a solidified film can be obviously improved, and further the structural strength of the formed film is improved.

Description

Base paint for sand-in-water multicolor paint for outer wall and preparation method thereof
Technical Field
The invention relates to the technical field of building coatings, in particular to a base paint for sand-in-water multicolor coatings for exterior walls and a preparation method thereof.
Background
With the rapid development of the economy of China, the living standard of residents is continuously improved, the requirements on the living quality are higher and higher, and the requirements on the quality of houses are stricter and stricter. People no longer satisfy simple decoration, and more concern is the elegant and elegant decoration of houses and the energy conservation and environmental protection of decorative materials. Thus, the performance requirements for coatings that play a significant role in home decoration are also very stringent.
The colorful stone-like paint is a kind of paint with great difficulty in making art paint, also called stone-like paint, that is, the paint is used to imitate stone, and the effect is vivid, no matter the texture or color is close to natural stone. For example, the common granite-like coating varieties at present mainly comprise: natural stone paint, granite imitation stone paint, oily multicolor paint and color piece paint.
At present, Chinese patent with application publication number CN107141869A discloses a novel colorful base paint and a preparation method thereof, and the novel colorful base paint comprises, by mass, 530-620 parts of water, 10-15 parts of modified cellulose, 1-5 parts of a dispersing agent, 5-10 parts of a preservative, 40-55 parts of kaolin, 12-18 parts of a film forming auxiliary agent, 280-300 parts of a pure acrylic emulsion, 80-100 parts of a leveling agent, 1.5-2 parts of a pH regulator, 10-12 parts of an antifreezing agent, 5-8 parts of a wetting agent, 500-520 parts of quartz sand, 5-8 parts of a thickening agent and 3-5 parts of an antifoaming agent; the multicolor base paint has excellent storage stability, but when the multicolor coating is applied to the south of the Yangtze river and is not dried by light for a long time in plum rain weather, the surface of the multicolor coating can passively absorb moisture, the coating becomes thicker, and the moisture is not easily released in a short time, so that the inside of the coating is loose, and the strength of the coating is reduced.
Disclosure of Invention
The invention aims to provide a base paint for sand-in-water multicolor paint for an outer wall and a preparation method thereof.
The above object of the present invention is achieved by the following technical solutions:
the base paint for the sand-in-water multicolor paint for the outer wall comprises, by weight, 100-120 parts of water, 90-110 parts of elastic emulsion, 30-40 parts of acrylic emulsion, 20-25 parts of fluoroacrylate polymer, 10-15 parts of rutile titanium dioxide, 40-50 parts of kaolin, 0.5-1.5 parts of dispersant, 0.5-1 part of multifunctional assistant and 1-3 parts of film forming assistant.
By adopting the technical scheme, the elastic emulsion has excellent rebound resilience, flexibility, adhesion, waterproofness, weather resistance, dust resistance and ultraviolet resistance, can play a good role in protecting a wall body, and can effectively cover fine cracks of the wall body; the acrylic emulsion is formed by multi-component polymerization of various acrylic acid, methacrylic acid, methyl methacrylate, acrylic ester and functional auxiliaries, and has excellent weather resistance, aging resistance and color and gloss retention;
the fluorine-containing acrylate polymer has higher weather resistance, heat resistance, stability, hydrophobicity and oleophobicity, is added into a polymerization system of elastic emulsion and pure acrylic emulsion, and in the process of forming a film on the surface of a wall body, the long chain of the fluorine-containing acrylate polymer can extend and be directionally arranged at an interface, so that the penetration towards the surface direction of the wall body is facilitated, and the compactness of the inside of the formed film is enhanced;
this application uses elastic emulsion, pure acrylic emulsion as polymerization system, adds rutile type titanium dioxide, kaolin and strengthens, adds fluorine-containing acrylate polymer, can show the compactness that improves the solidification film, and then improves the structural strength who becomes the film, adopts this colorful base paint spraying on the outer wall, and the inside compactness of spraying layer is high, is favorable to improving this coating passively waterproof, is applicable to south plum rain weather, improves the structural strength of coating in humid environment.
The invention is further configured that the elastic emulsion comprises the following components in parts by weight: 60-65 parts of styrene-acrylic emulsion, 20-25 parts of borax, 3-10 parts of hexadecyl trimethyl ammonium bromide, 3-10 parts of vegetable binder and 0.5-2 parts of isomeric alcohol polyoxyethylene ether.
By adopting the technical scheme, the hexadecyl trimethyl ammonium bromide has excellent permeability, flexibility, antistatic property and bactericidal property; borax is sodium tetraborate containing 10 water molecules, crystals are plate-shaped or columnar, and the crystals are integrated to form a crystal cluster shape and a granular shape, are easy to dissolve in water and are alkalescent; the plant binder is added into the elastic emulsion system, so that the hydrophilicity, the solubility and the permeability of the elastic emulsion are enhanced; the elastic emulsion prepared by the components contains a large amount of amino and hydroxyl, is easy to generate hydrogen bond action with oxygen atoms, hydroxide groups and the like on the surface of a wall substrate, and has strong adhesive force.
The invention is further configured to: the plant binder is selected from oxidized starch glue or starch acetate glue.
By adopting the technical scheme, the plant adhesive is oxidized starch adhesive or starch acetate adhesive, and the oxidized starch adhesive or starch acetate adhesive has low-degree substitution in molecules, so that the reaction activity of the common starch adhesive is improved, the plant adhesive is ensured to have good adhesive property, the emulsion polymerization of the elastic emulsion in the base paint can be promoted, and the reaction activity of the elastic emulsion is improved.
The invention further provides that the preparation method of the elastic emulsion comprises the following steps:
(1) adding borax into styrene-acrylic emulsion, vacuumizing to a vacuum degree of-0.08 Mpa, and stirring uniformly;
(2) then adding hexadecyl trimethyl ammonium bromide and isomeric alcohol polyoxyethylene ether, and continuously stirring;
(3) adding the plant binder, and stirring uniformly.
By adopting the technical scheme, the borax is added into the styrene-acrylic emulsion and is mixed under the action of negative pressure, so that the bubble amount generated when the borax is mixed with the styrene-acrylic emulsion is reduced, and the product quality of the elastic emulsion is improved; cetyl trimethyl ammonium bromide and isomeric alcohol polyoxyethylene ether are added to play a role in emulsification, so that the resilience, flexibility and the like of the elastic emulsion are improved; the addition of the plant binder can obviously improve the adsorption force among the components and is beneficial to making up the defect that the borax is loose and is not easy to form a film.
The invention is further configured to: the surface tension of the fluorine-containing acrylate polymer is 25-30 mN/m.
By adopting the technical scheme, the fluorine-containing acrylate polymer belongs to a low surface tension substance, the surface tension of the fluorine-containing acrylate polymer is limited to 25-30 mN/m, the surface tension of the fluorine-containing acrylate polymer is properly reduced, the intermiscibility of the fluorine-containing acrylate polymer with an elastic emulsion and a pure acrylic emulsion is favorably improved, and the texture uniformity of the colorful base paint is improved.
The invention is further configured to: the aluminum paste also comprises 3-7 parts by weight of water-based aluminum paste, wherein the water-based aluminum paste comprises the following components in parts by weight: 45-50 parts of acrylate, 10-15 parts of aluminum powder, 5-10 parts of bentonite, 1-3 parts of talcum powder, 0.5-1 part of wetting dispersant and 0.5-3 parts of KH-5701.
By adopting the technical scheme, the bentonite has an intercalation structure, aluminum powder and the bentonite are compounded, so that the aluminum powder which is easy to scatter is attached to the intercalation structure of the bentonite, and the aluminum powder is prepared into aqueous aluminum paste in the self-crosslinking process of the acrylate monomer, thereby being beneficial to improving the covering power of the base paint, being opaque to light, having the reflection capacity to ultraviolet rays, having the heat dissipation effect to heat energy, and having good weather resistance, good corrosion resistance and excellent water resistance.
The invention is further configured that the preparation method of the water-based aluminum paste comprises the following steps:
(1) uniformly mixing aluminum powder, bentonite and talcum powder under the action of an electric field force to obtain mixed powder;
(2) placing the mixed powder in a tubular sintering furnace, adjusting the temperature to 200-280 ℃ in a nitrogen environment, and keeping for 2 hours;
(3) cooling the sintered mixed powder to below 100 ℃, quickly putting the powder into acrylic ester, adding wetting dispersant and KH-570, and uniformly stirring.
By adopting the technical scheme, the aluminum powder, the bentonite and the talcum powder are mixed by utilizing the electric field force to form the mixed powder, so that the surface of the mixed powder has larger adsorption force, then the mixed powder is sintered, the surface activity of the sintered mixed powder is enhanced, and the surface of the sintered mixed powder is shrunk, thereby being beneficial to improving the fineness and the water resistance of the mixed powder.
The second aim of the invention is realized by the following technical scheme:
a preparation method of a base paint for sand-in-water multicolor paint for an outer wall comprises the following steps:
(1) preparing materials: weighing 100-120 parts of water, 90-110 parts of elastic emulsion, 30-40 parts of acrylic emulsion, 20-25 parts of fluorine-containing acrylate polymer, 10-15 parts of rutile titanium dioxide, 40-50 parts of kaolin, 0.5-1.5 parts of dispersing agent, 0.5-1 part of multifunctional assistant and 1-3 parts of film-forming assistant according to parts by weight;
(2) uniformly mixing water, elastic emulsion, pure acrylic emulsion, rutile type titanium dioxide and kaolin;
(3) adding a dispersing agent and a multifunctional auxiliary agent, and uniformly stirring;
(4) then adding the fluorine-containing acrylate polymer, and uniformly stirring;
(5) adding the film forming assistant and stirring uniformly.
By adopting the technical scheme, the colorful base paint is prepared from the components according to the steps, and has the advantages of simple process, stable forming and uniform base paint quality.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the compactness is high: in the matrixes of the elastic emulsion and the pure acrylic emulsion, the fluorine-containing acrylate polymer is adopted, so that the compactness of a formed film is obviously improved, and the hardness and the impact strength of the formed film are improved; the hardness and the impact strength are further improved by adding the aqueous aluminum paste;
2. excellent water resistance: compared with the prior art, the water resistance of a paint film is obviously improved by adopting the fluorine-containing acrylate polymer; in addition, the water-based aluminum paste is added, so that the water resistance of the formed film is further improved.
Detailed Description
The present invention will be described in further detail with reference to examples.
The styrene-acrylic emulsion is purchased from Shandonghao Shunhua chemical Co., Ltd, has a solid content of 40-45%, a viscosity of 1200mpa & s and a pH value of 8-9; the multifunctional additive is a multifunctional additive of American Dow AMP-95; the film-forming assistant is Loxanol CA 5308 film-forming assistant sold by Jiangsu Runtai chemical company Limited; the dispersant is selected from a Dow ACUMER 9300 dispersant; borax is purchased from Liaoning first steel, and the grain size is 200 meshes; oxidized starch adhesives were purchased from Henan Tuda starch adhesives, Inc.; starch acetate gum was purchased from wang biotechnology limited of hengkang; the acrylate is obtained from methyl acrylate sold by Yiwei chemical science and technology Limited in Shandong; the aluminum powder is purchased from Luoyang discoverer aluminum industry Co., Ltd, and has a particle size of 400 meshes; the bentonite is purchased from Shijiazhuang Lishang mineral product processing Limited company, and the particle size is 250 meshes; the talcum powder is purchased from Oerson chemical Co., Ltd, Jiangyin, and has a particle size of 300 meshes; the wetting dispersant is purchased from Kyong chemical company of Shanghai; the fluoroacrylate polymer was purchased from Shandong Baoda New materials, Inc.
Preparation of raw materials example one:
an elastic emulsion is prepared by the following method:
(1) preparing materials: according to the parts by weight, 60 parts of styrene-acrylic emulsion, 20 parts of borax, 3 parts of hexadecyl trimethyl ammonium bromide, 3 parts of oxidized starch glue and 0.5 part of isomeric alcohol polyoxyethylene ether are weighed;
(2) adding borax into styrene-acrylic emulsion, vacuumizing to-0.08 Mpa, and stirring;
(3) then adding hexadecyl trimethyl ammonium bromide and isomeric alcohol polyoxyethylene ether, and continuously stirring;
(4) adding oxidized starch glue, and stirring uniformly to obtain the elastic emulsion.
Preparation example two of raw materials:
the elastic emulsion is different from the first raw material preparation example in formula composition, and is prepared by weighing 62 parts by weight of styrene-acrylic emulsion, 23 parts by weight of borax, 6 parts by weight of hexadecyl trimethyl ammonium bromide and 7 parts by weight of oxidized starch glue
And 1.3 parts of isomeric alcohol polyoxyethylene ether.
Preparation example three of raw materials:
the elastic emulsion is different from the first raw material preparation example in formula composition, and 65 parts of styrene-acrylic emulsion, 25 parts of borax, 10 parts of cetyl trimethyl ammonium bromide, 10 parts of oxidized starch glue and 2 parts of isomeric alcohol polyoxyethylene ether are weighed according to parts by weight.
Preparation example four of raw materials:
the elastic emulsion is characterized in that starch acetate glue is used for replacing oxidized starch glue.
Preparation example v of raw materials:
the water-based aluminum paste is prepared by the following method:
(1) preparing materials: weighing 45 parts of methyl methacrylate, 10 parts of aluminum powder, 5 parts of bentonite, 1 part of talcum powder, 0.5 part of wetting dispersant and 0.5 part of KH-5701 parts by weight;
(2) uniformly mixing aluminum powder, bentonite and talcum powder under the action of an electric field force to obtain mixed powder;
(3) placing the mixed powder in a tubular sintering furnace, adjusting the temperature to 230 ℃ in a nitrogen environment, and keeping for 2 hours;
(4) cooling the sintered mixed powder to below 100 ℃, quickly putting the powder into methyl methacrylate, adding the wetting dispersant and KH-570, and uniformly stirring.
Preparation of raw materials example six:
the difference between the water-based aluminum paste and the raw material preparation example V is that the formula of the water-based aluminum paste is different, and 48 parts by weight of methyl methacrylate, 12 parts by weight of aluminum powder, 8 parts by weight of bentonite, 2 parts by weight of talcum powder, 0.8 part by weight of wetting dispersant and KH-5702 parts by weight of wetting dispersant are weighed.
Preparation of the starting materials example seven:
the difference between the water-based aluminum paste and the raw material preparation example V is that the water-based aluminum paste is different in formula, and 50 parts by weight of methyl methacrylate, 15 parts by weight of aluminum powder, 10 parts by weight of bentonite, 3 parts by weight of talcum powder, 1 part by weight of wetting dispersant and KH-5703 parts by weight of wetting dispersant are weighed.
The first embodiment is as follows:
a base paint for sand-in-water multicolor paint for external walls is prepared by the following method:
(1) preparing materials: weighing 100 parts of water, 90 parts of elastic emulsion of raw material preparation example I, 30 parts of acrylic emulsion, 20 parts of fluorine-containing acrylate polymer, 10 parts of rutile titanium dioxide, 40 parts of kaolin, 0.5 part of dispersant, 0.5 part of multifunctional assistant and 1 part of film-forming assistant according to parts by weight;
(2) uniformly mixing water, elastic emulsion, pure acrylic emulsion, rutile type titanium dioxide and kaolin;
(3) adding a dispersing agent and a multifunctional auxiliary agent, and uniformly stirring;
(4) then adding the fluorine-containing acrylate polymer, and uniformly stirring;
(5) adding the film forming assistant and stirring uniformly.
The second embodiment:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the first embodiment in that the elastic emulsion is prepared by adopting the second raw material preparation embodiment.
Example three:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the first embodiment in that the elastic emulsion is prepared by the third raw material preparation example.
Example four:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the first embodiment in that the elastic emulsion is prepared by adopting the fourth raw material preparation embodiment.
Example five:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the second embodiment in that 3 parts by weight of the water-based aluminum paste of the fifth raw material preparation example is added in the formula, and the base paint is added in the step (3) in the preparation method.
Example six:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the second embodiment in that 3 parts by weight of the aqueous aluminum paste of the sixth raw material preparation example is added in the formula, and the base paint is added in the step (3) in the preparation method.
Example seven:
the difference between the base paint for the sand-in-water multicolor paint for the outer wall and the second embodiment is that 3 parts by weight of the water-based aluminum paste of the seventh raw material preparation example is added in the formula, and the base paint is added in the step (3) in the preparation method.
Example eight
The base paint for the sand-in-water multicolor paint for the outer wall is different from the base paint in the sixth embodiment in formula content, and comprises 105 parts by weight of water, 95 parts by weight of elastic emulsion, 33 parts by weight of acrylic emulsion, 22 parts by weight of fluorine-containing acrylate polymer, 12 parts by weight of rutile titanium dioxide, 43 parts by weight of kaolin, 4 parts by weight of aqueous aluminum powder slurry, 0.8 part by weight of dispersant, 0.6 part by weight of multifunctional assistant and 1.8 parts by weight of film-forming assistant.
Example nine:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the sixth embodiment in formula content, and comprises, by weight, 110 parts of water, 100 parts of elastic emulsion, 35 parts of acrylic emulsion, 23.5 parts of fluorine-containing acrylate polymer, 13.5 parts of rutile titanium dioxide, 47 parts of kaolin, 5.5 parts of aqueous aluminum paste, 1.1 parts of dispersant, 0.8 part of multifunctional assistant and 2.5 parts of film-forming assistant.
Example ten:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the sixth embodiment in formula content, and comprises 120 parts by weight of water, 110 parts by weight of elastic emulsion, 40 parts by weight of pure acrylic emulsion, 25 parts by weight of fluorine-containing acrylate polymer, 15 parts by weight of rutile titanium dioxide, 50 parts by weight of kaolin, 7 parts by weight of aqueous aluminum powder slurry, 1.5 parts by weight of dispersant, 1 part by weight of multifunctional assistant and 3 parts by weight of film-forming assistant.
Comparative example one: a novel colorful base paint and a preparation method thereof disclosed in Chinese patent with application publication No. CN107141869A are used, and example 1 in the patent is used as a first comparative example.
Comparative example two:
a base paint for a sand-in-water multicolor paint for exterior walls is different from the base paint in the ninth embodiment in that a fluorine-containing acrylate polymer is absent.
Comparative example three:
the base paint for the sand-in-water multicolor paint for the outer wall is different from the base paint in the ninth embodiment in that the elastic emulsion is a commercially available elastic emulsion which is purchased from Shandong Liang New Material science and technology company.
The detection means comprises:
(1) the paint film adhesion force is as follows: according to the GB1720-79(88) paint film adhesion test method of the national standard, a paint film adhesion tester is utilized, a circle drawing method is adopted for measurement, the paint film adhesion tester is characterized by 1-7 different grades, and the grade 1 is the best and the grade 7 is the worst;
(2) the hardness of a paint film; according to the GB6739-86 coating hardness pencil determination method, a pencil hardness test is adopted;
(3) impact resistance of a paint film: according to the national standard GB 1732-93 paint film impact resistance determination method, a film coating impactor is used for determination;
(4) water resistance of a paint film: and (3) placing the sample into a glass container filled with deionized water, soaking the sample into the deionized water to a depth of two thirds of the length of the sample for 1d, 3d, 7d, 15d and 30d, and observing the surface condition of the sample.
The results of the tests for adhesion, hardness and impact resistance of the paint films are shown in the following table:
sample(s) Adhesion force Hardness of Impact strength (kg-cm)
Example one 1 2H 70
Example two 1 2H 75
EXAMPLE III 1 2H 72
Example four 1 2H 74
EXAMPLE five 1 3H 78
Example six 1 3H 80
EXAMPLE seven 1 3H 78
Example eight 1 3H 82
Example nine 1 3H 83
EXAMPLE ten 1 3H 82
Comparative example 1 1 H 62
Comparative example No. two 1 H 60
Comparative example No. three 1 2H 65
As can be seen from the table above, the sample prepared by the embodiment of the application has larger adhesive force, higher hardness and larger impact strength, and shows that the sample has high compactness inside the formed film, has good elastic performance and is obviously superior to the performance of the comparative example I; compared with the prior art, the fluorine-containing acrylate polymer is adopted, so that the compactness of a formed film is obviously improved, the hardness and the impact resistance of the formed film are improved, and the effect is excellent; as seen from comparative example III, the hardness and impact strength were further improved by adding the aqueous aluminum paste.
The results of the water resistance measurements are shown in the following table:
Figure BDA0002877942190000081
Figure BDA0002877942190000091
as can be seen from the above table, the samples of the first to fourth examples can resist the immersion in deionized water for at least 15 days, and the effect is superior to that of the first comparative example; the fifth embodiment to the tenth embodiment can resist the deionized water immersion for at least 30 days, and the water-resistant effect is excellent; as is clear from comparative example II, the water resistance is markedly lowered in the absence of the fluorine-containing acrylate polymer.
The embodiments of the present invention are all preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, so: equivalent changes made according to the structure, shape and principle of the invention shall be covered by the protection scope of the invention.

Claims (2)

1. The base paint for the sand-in-water multicolor paint for the outer wall is characterized by comprising the following components in parts by weight: the base paint comprises, by weight, 100-120 parts of water, 90-110 parts of elastic emulsion, 30-40 parts of acrylic emulsion, 20-25 parts of fluorine-containing acrylate polymer, 10-15 parts of rutile titanium dioxide, 40-50 parts of kaolin, 0.5-1.5 parts of dispersing agent, 0.5-1 part of multifunctional assistant and 1-3 parts of film-forming assistant; the surface tension of the fluorine-containing acrylate polymer is 25-30 mN/m;
the aluminum paste also comprises 3-7 parts of water-based aluminum paste, wherein the water-based aluminum paste comprises the following components in parts by weight: 45-50 parts of acrylates, 10-15 parts of aluminum powder, 5-10 parts of bentonite, 1-3 parts of talcum powder, 0.5-1 part of wetting dispersant and 01-3 parts of KH-5701;
the preparation method of the water-based aluminum paste comprises the following steps:
(1) uniformly mixing aluminum powder, bentonite and talcum powder under the action of an electric field force to obtain mixed powder;
(2) placing the mixed powder in a tubular sintering furnace, adjusting the temperature to 200-280 ℃ in a nitrogen environment, and keeping for 2 hours;
(3) cooling the sintered mixed powder to below 100 ℃, quickly putting the powder into acrylic ester, adding a wetting dispersant and KH-570, and uniformly stirring;
the elastic emulsion comprises the following components in parts by weight: 60-65 parts of styrene-acrylic emulsion, 20-25 parts of borax, 3-10 parts of hexadecyl trimethyl ammonium bromide, 3-10 parts of plant binder and 0.5-2 parts of isomeric alcohol polyoxyethylene ether; the plant binder is oxidized starch glue or starch acetate glue;
the preparation method of the elastic emulsion comprises the following steps:
(1) adding borax into styrene-acrylic emulsion, vacuumizing to-0.08 Mpa below, and stirring;
(2) then adding cetyl trimethyl ammonium bromide and isomeric alcohol polyoxyethylene ether, and continuing stirring;
(3) adding the plant binder, and stirring uniformly.
2. The method for preparing the base paint for sand-in-water multicolor paint for external walls according to claim 1, characterized by comprising the following steps:
(1) preparing materials: weighing 100-120 parts of water, 90-110 parts of elastic emulsion, 30-40 parts of acrylic emulsion, 20-25 parts of fluorine-containing acrylate polymer, 10-15 parts of rutile titanium dioxide, 40-50 parts of kaolin, 0.5-1.5 parts of dispersant, 0.5-1 part of multifunctional assistant, 1-3 parts of film-forming assistant and 3-7 parts of aqueous aluminum paste according to parts by weight;
(2) uniformly mixing water, elastic emulsion, pure acrylic emulsion, rutile type titanium dioxide and kaolin;
(3) adding the aqueous aluminum powder slurry, the dispersant and the multifunctional additive, and stirring uniformly;
(4) then adding the fluorine-containing acrylate polymer, and uniformly stirring;
(5) adding the film forming assistant and stirring uniformly.
CN202011639515.8A 2020-12-31 2020-12-31 Base paint for sand-in-water multicolor paint for exterior wall and preparation method thereof Active CN112852230B (en)

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JPH06238639A (en) * 1993-02-19 1994-08-30 C C A Kk Molding device and method for molded body with pattern
CN101294439B (en) * 2008-06-16 2011-12-21 吴绍元 Multifunctional energy-saving decorative board
CN104073082A (en) * 2013-03-27 2014-10-01 常熟市优德爱涂料有限公司 Preparing method of aqueous multicolor coating based on fluorocarbon
CN105505073A (en) * 2015-12-26 2016-04-20 铃鹿复合建材（上海）有限公司 Sand-in-water multicolor paint
CN106396576B (en) * 2016-09-13 2019-01-01 石家庄星海高科非金属矿业材料有限责任公司 A kind of colored plaster decoration wall material and its preparation and application with self-cleaning function
CN109777223A (en) * 2018-12-26 2019-05-21 中华制漆（深圳）有限公司 Colorful stone-like coating and preparation method thereof
CN110358384B (en) * 2019-06-14 2023-07-14 河北晨阳工贸集团有限公司 Sand-in-water multicolor paint and preparation method thereof

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