CN111892852A - Corrosion-resistant epoxy modified silicon-acrylic stone paint - Google Patents
Corrosion-resistant epoxy modified silicon-acrylic stone paint Download PDFInfo
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- CN111892852A CN111892852A CN202010737576.1A CN202010737576A CN111892852A CN 111892852 A CN111892852 A CN 111892852A CN 202010737576 A CN202010737576 A CN 202010737576A CN 111892852 A CN111892852 A CN 111892852A
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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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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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- 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
Abstract
The invention discloses corrosion-resistant epoxy modified silicon-acrylic real stone paint, which belongs to the technical field of building coatings and comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and the component B is 25-35: 65-75, wherein the component A is prepared from the following raw materials: epoxy modified silicone-acrylate emulsion: 46% -50%, water: 42.05-47.25, cellulose ether: 0.7% -0.8%, clay: 0.15% to 0.2%, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.7% -3%, and an antifreezing agent: 2.5-3%, pH regulator: 0.3% -0.4%, bactericide: 0.3% -0.4% and a thickener: 0.1 to 0.15 percent, the percentages are weight percentages, the stone-like paint has strong adhesiveness, chemical corrosion resistance and thermal stability, has better protection effect on the wall body after being mixed with natural colored sand for construction, belongs to a high-performance environment-friendly product, and has simple construction and smooth spraying.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of building coatings, in particular to corrosion-resistant epoxy modified silicon-acrylic real stone paint.
[ background of the invention ]
In recent years, the real stone paint is the preferred product type in the building coating industry for exterior wall decoration, the production technology is relatively mature at present, the product mainly takes pure acrylic emulsion, styrene modified acrylic emulsion and organosilicon modified acrylic emulsion as film forming materials of a real stone paint base material, the real stone paint prepared by mixing natural colored sand with various colors according to the sand proportion has higher similarity with marble, and has excellent decoration effect and excellent durability and cracking resistance in performance, wherein the pure acrylic emulsion has high minimum film forming temperature and poor water resistance, the styrene modified acrylic real stone paint has high hardness but poor ultraviolet aging resistance after film forming, the organosilicon modified acrylic real stone paint has good water resistance, high temperature resistance, ultraviolet aging resistance and stain resistance but poor adhesive force and chemical corrosion resistance, particularly, with the rapid development of industrialization, the emission of harmful gases is difficult to control, and the discharged gases form acid rain and then corrode external wall buildings more and more seriously, so that the corrosion resistance and the resistance of the real stone paint are required to be higher.
[ summary of the invention ]
The invention aims to solve the technical problem of overcoming the defects in the prior art and designs the corrosion-resistant epoxy modified silicon-acrylic real stone paint.
In order to solve the technical problems, the invention adopts the following technical scheme:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and the component B is 25-35: 65-75, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 46 to 50 percent of
Water: 42.05-47.25
Cellulose ether: 0.7 to 0.8 percent
Clay: 0.15 to 0.2 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.7 to 3 percent
An antifreezing agent: 2.5 to 3 percent
pH regulators: 0.3 to 0.4 percent
And (3) bactericide: 0.3 to 0.4 percent
Thickening agent: 0.1 to 0.15 percent of,
the above percentages are weight percentages.
Preferably, the cellulose ether is a methyl cellulose ether, an ethyl cellulose ether, a hydroxymethyl cellulose ether, a hydroxyethyl cellulose ether, a hydroxypropyl cellulose ether, or a methylhydroxypropyl cellulose ether.
Preferably, the clay is a modified inorganic bentonite.
Preferably, the pH regulator is 2-amino-2-methyl-1-propanol or ammonia water.
Preferably, the antifreeze is ethylene glycol or propylene glycol.
Preferably, the bactericide is an isothiazolinone or imidazole derivative.
Preferably, the thickener is an alkali swelling thickener.
Preferably, the preparation comprises the following steps:
step S1: adding cellulose ether and clay into water, dispersing at a high speed until the cellulose ether and the clay are uniformly dispersed, then adding a pH regulator until the cellulose ether and the clay are completely dissolved, sequentially adding an antifreezing agent and a film-forming aid, stirring for 10 minutes at 500-800 r/min, then adding an epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding a bactericide and a thickening agent which are diluted by 1: 1 with water, and adjusting to a proper viscosity;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
Preferably, the preparation of the epoxy modified silicone-acrylate emulsion comprises the following steps:
step S1: adding water, emulsifier, 1/5 mixed monomer of acrylic acid and styrene and appropriate amount of sodium bicarbonate into a four-neck flask provided with a stirrer, a constant pressure dropping funnel and a condensing tube, and rapidly stirring;
step S2: adjusting a proper stirring speed when the temperature is raised to 75 ℃, adding 1/3 initiator, continuously stirring and raising the temperature to 78-80 ℃, and keeping the temperature for 0.5h after a blue heat release peak appears;
step S3: dissolving the residual mixed monomer of acrylic acid and styrene in epoxy resin E-44, uniformly mixing the mixture with organosilicon VIES, preparing 2% of initiator solution, simultaneously dropwise adding the residual monomer (containing epoxy resin E-44 and organosilicon VIES) and the initiator solution at 78-80 ℃, completing dripping for 3-4 h, keeping the temperature at 80-82 ℃ for 1h, cooling to below 40 ℃, and adding ammonia water to adjust the pH to 7.5-8 (pH test paper);
step S4: filtering with a filter cloth to obtain the epoxy modified silicone-acrylate emulsion.
The beneficial effect of this scheme of adoption:
1. the epoxy modified silicone-acrylate emulsion is used as a film forming material of a base material, natural colored sand with various colors is mixed according to a sand grading ratio to prepare the real stone paint, which belongs to the first example in the field of real stone paint.
2. The film forming mechanism of the epoxy modified silicone-acrylate emulsion comprises three stages, namely, the filling, fusing and diffusing stages of emulsion particles, the required time is long, the film forming temperature is high, and in the invention, by adding 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate which is a film forming aid Isemann and has the advantages of excellent environmental performance, good compatibility, low volatility and easy absorption by emulsion particles, the polymer particles of the epoxy modified silicone-acrylate emulsion are swelled, pressed and deformed when the environmental temperature does not reach the lowest film forming temperature of the emulsion to form a continuous film forming state, so that the lowest film forming temperature of a film forming object is reduced, and the coalescence, the weather resistance and the color development of the real stone paint are improved.
3. The preparation of the stone-like paint requires the molecular weight of cellulose ether when a matching system with a thickening agent is selected, and the proper cellulose ether is selected in the invention, and comprises methyl cellulose ether, ethyl cellulose ether, hydroxymethyl cellulose ether, hydroxyethyl cellulose ether, hydroxypropyl cellulose ether or methyl hydroxypropyl cellulose ether, and matched with inorganic bentonite, so that the thixotropy of the system is improved, and the high-shear low-viscosity state is achieved during construction, and the spraying is smoother and smoother.
These features and advantages of the invention will be disclosed in more detail in the following detailed description.
[ detailed description ] embodiments
The technical solutions of the present invention are explained and illustrated below with reference to the following embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Comparative example 1:
the styrene modified acrylic real stone paint comprises a base material as a component A and natural colored sand as a component B, wherein the component A comprises the following components in parts by weight: and (3) the component B is 35: 65, wherein the component A is prepared from the following raw materials:
styrene modified acrylic emulsion: 48 percent
Water: 44.75 percent
Hydroxymethyl cellulose ether: 0.75 percent
Modified inorganic bentonite: 0.17 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.8 percent of
Ethylene glycol: 2.7 percent
2-amino-2-methyl-1-propanol: 0.35 percent
Imidazole derivatives: 0.35 percent
Alkali swelling thickener: 0.13 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the styrene modified acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding hydroxymethyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding 2-amino-2-methyl-1-propanol until the hydroxymethyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding ethylene glycol, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring at 800r/min for 10 minutes, then adding styrene modified acrylic emulsion, dispersing uniformly, then adding an imidazole derivative and an alkali swelling thickener which are diluted by 1 to 1 ratio with water until the viscosity is adjusted to be proper, wherein the proper viscosity in the embodiment is 105 KU;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The styrene modified acrylic real stone paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building paint, and the results are shown in Table 1 below.
Table 1:
comparative example 2:
the organic silicon modified acrylic real stone paint comprises a base material as a component A and natural colored sand as a component B, wherein the component A comprises the following components in parts by weight: and (3) the component B is 35: 65, wherein the component A is prepared from the following raw materials:
organosilicon modified acrylic emulsion: 48 percent
Water: 44.75 percent
Hydroxypropyl cellulose ether: 0.75 percent
Modified inorganic bentonite: 0.17 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.8 percent of
Propylene glycol: 2.7 percent
2-amino-2-methyl-1-propanol: 0.35 percent
Imidazole derivatives: 0.35 percent
Alkali swelling thickener: 0.13 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the organosilicon modified acrylic real stone paint in this example comprises the following steps:
step S1: adding hydroxypropyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding 2-amino-2-methyl-1-propanol until the hydroxypropyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding propylene glycol, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring at 750r/min for 10 minutes, then adding an organic silicon modified acrylic emulsion, dispersing uniformly, then adding an imidazole derivative and an alkali swelling thickener which are diluted by 1 to 1 ratio with water until the viscosity is adjusted to be proper, wherein the proper viscosity in the embodiment is 105 KU;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The organosilicon modified acrylic stone paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 2 below.
Table 2:
example 1:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: component B25: 75, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 46 percent
Water: 47.25 percent
Methyl cellulose ether: 0.7 percent
Modified inorganic bentonite: 0.15 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.7 percent
Ethylene glycol: 2.5 percent
2-amino-2-methyl-1-propanol: 0.3 percent of
Isothiazolinone: 0.3 percent of
Alkali swelling thickener: 0.1 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding methyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the methyl cellulose ether and the modified inorganic bentonite are uniformly dispersed, then adding 2-amino-2-methyl-1 propanol until the methyl cellulose ether and the modified inorganic bentonite are completely dissolved, adding ethylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate in sequence, stirring for 10 minutes at 600r/min, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding isothiazolinone diluted by 1 ratio to water and alkali swelling thickener until the viscosity is adjusted to be proper, wherein the proper viscosity in the embodiment is 105 KU;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 3 below.
Table 3:
epoxy resin molecules contain epoxy groups, hydroxyl groups and ether bonds, and the epoxy resin emulsion has good adhesive force and corrosion resistance, a copolymerization reaction is carried out at 78-80 ℃ under the action of initiator ammonium persulfate (APS for short) through epoxy resin, acrylate monomer, styrene and organic silicon monomer containing unsaturated double bonds to form a compact network structure, the prepared epoxy modified silicone-acrylate emulsion has the advantages of organic silicon modified acrylic emulsion and epoxy resin, the adhesive force and chemical corrosion resistance of the organic silicon modified acrylic emulsion are improved, the compact network structure is generated at the same time, the crosslinking degree of a polymer is increased, the inter-monomer bond connection is tighter, and the shielding property to high temperature is enhanced, so that the thermal stability of a product is improved, and the reaction mechanism is as follows:
the specific preparation steps of the epoxy modified silicone-acrylate emulsion are as follows:
step S1: adding metered water, emulsifier Sodium Dodecyl Benzene Sulfonate (SDBS), 1/5 mixed monomer of acrylic acid and styrene and a proper amount of sodium bicarbonate into a four-neck flask provided with a stirrer, a constant pressure dropping funnel and a condensing tube, and rapidly stirring;
step S2: adjusting a proper stirring speed when the temperature is raised to 75 ℃, adding 1/3 initiator ammonium persulfate (APS for short), continuously stirring and raising the temperature to 78-80 ℃, and keeping the temperature for 0.5h after a blue heat release peak appears;
step S3: dissolving the residual mixed monomer of acrylic acid and styrene in epoxy resin E-44, uniformly mixing the mixture with organosilicon VIES, preparing 2% of initiator solution, simultaneously dropwise adding the residual monomer (containing epoxy resin E-44 and organosilicon VIES) and the initiator solution at 78-80 ℃, completing dripping for 3-4 h, keeping the temperature at 80-82 ℃ for 1h, cooling to below 40 ℃, and adding ammonia water to adjust the pH to 75-8 (pH test paper);
step S4: filtering with a filter cloth to obtain the epoxy modified silicone-acrylate emulsion.
Compared with the existing real stone paint system, the epoxy modified silicone-acrylic emulsion prepared by the method is used as a film forming material of a base material, so that the problems of high lowest film forming temperature, poor water resistance and the like of a pure acrylic emulsion are solved, the problem of poor adhesion of an organic silicon modified acrylic emulsion is solved, the performances of adhesion, chemical corrosion resistance, thermal stability and the like of a finished product of real stone paint are improved, a better protection effect is achieved on a wall body after the construction of mixing natural colored sand, and the epoxy modified silicone-acrylic emulsion belongs to a high-performance environment-friendly product, and is simple in construction and smooth in spraying.
Example 2:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: component B25: 75, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 47 percent of
Water: 45.7 percent of
Ethyl cellulose ether: 0.79 percent
Modified inorganic bentonite: 0.18 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.7 percent
Ethylene glycol: 2.8 percent of
Ammonia water: 0.36 percent
Isothiazolinone: 0.33 percent
Alkali swelling thickener: 0.14 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding ethyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding ammonia water until the ethyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding ethylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring at 700r/min for 10 minutes, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding isothiazolinone and alkali swelling thickener which are diluted by 1 to 1 ratio with water until the viscosity is adjusted to be proper, wherein the proper viscosity is 105KU in the embodiment;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 4 below.
Table 4:
example 3:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and (3) the component B is 35: 65, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 48 percent
Water: 44.75 percent
Hydroxymethyl cellulose ether: 0.75 percent
Modified inorganic bentonite: 0.17 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.8 percent of
Ethylene glycol: 2.7 percent
2-amino-2-methyl-1-propanol: 0.35 percent
Imidazole derivatives: 0.35 percent
Alkali swelling thickener: 0.13 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding hydroxymethyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding 2-amino-2-methyl-1-propanol until the hydroxymethyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding ethylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring at 800r/min for 10 minutes, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding an imidazole derivative and an alkali swelling thickener which are diluted by 1: 1 of water until the viscosity is adjusted to be proper, wherein the proper viscosity in the embodiment is 105 KU;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 5 below.
Table 5:
example 4:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and (3) the component B is 35: 65, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 49 percent of
Water: 43.42 percent
Hydroxyethyl cellulose ether: 0.77 percent
Modified inorganic bentonite: 0.19 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.9 percent of
Propylene glycol: 2.9 percent of
Ammonia water: 0.33 percent
Imidazole derivatives: 0.37 percent
Alkali swelling thickener: 0.12 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding hydroxyethyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding ammonia water until the hydroxymethyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding propylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring for 10 minutes at 650r/min, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding an imidazole derivative and an alkali swelling thickener which are diluted by 1 to 1 ratio with water until the viscosity is adjusted to be proper, wherein the proper viscosity is 105KU in the embodiment;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 6 below.
Table 6:
example 5:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and (3) component B is 30: 70, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 48 percent
Water: 44.68 percent
Hydroxypropyl cellulose ether: 0.78 percent
Modified inorganic bentonite: 0.16 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.9 percent of
Propylene glycol: 2.6 percent
2-amino-2-methyl-1-propanol: 0.38 percent
Imidazole derivatives: 0.39 percent
Alkali swelling thickener: 0.11 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding hydroxypropyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the mixture is uniform, then adding 2-amino-2-methyl-1-propanol until the hydroxypropyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding propylene glycol, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring at 750r/min for 10 minutes, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding an imidazole derivative and an alkali swelling thickener which are diluted by 1: 1 of water until the viscosity is adjusted to be proper, wherein the proper viscosity in the embodiment is 105 KU;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 7 below.
Table 7:
example 6:
the corrosion-resistant epoxy modified silicon-acrylic real stone paint comprises a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in percentage by weight: and (3) component B is 30: 70, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 50 percent of
Water: 42.05 percent
Methyl hydroxypropyl cellulose ether: 0.8 percent
Modified inorganic bentonite: 0.2 percent of
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 3 percent of
Propylene glycol: 3 percent of
Ammonia water: 0.4 percent
Isothiazolinone: 0.4 percent
Alkali swelling thickener: 0.15 percent of the total weight of the mixture,
the above percentages are weight percentages.
The preparation of the corrosion-resistant epoxy modified silicon-acrylic real stone paint in the embodiment comprises the following steps:
step S1: adding methyl hydroxypropyl cellulose ether and modified inorganic bentonite into water, dispersing at a high speed until the methyl hydroxypropyl cellulose ether and the modified inorganic bentonite are uniformly dispersed, then adding ammonia water until the methyl hydroxypropyl cellulose ether and the modified inorganic bentonite are completely dissolved, sequentially adding propylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, stirring for 10 minutes at 600r/min, then adding epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding isothiazolinone and alkali swelling thickener which are diluted by 1: 1 of water until the viscosity is adjusted to be proper, wherein the proper viscosity is 105KU in the embodiment;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
The corrosion-resistant epoxy modified silicon acrylic paint prepared in the above examples was tested according to the test standard of JG/T24-2018 synthetic resin emulsion sand wall building coating, and the results are shown in Table 8 below.
Table 8:
from the above, it can be seen that example 3 is the most preferable example, and comparing table 1, table 2 and table 5, it can be seen that, under the condition that other materials and amounts are the same, the prepared stone-like paint has a low adhesion index, poor adhesion, general water resistance, poor chemical corrosion resistance and no acid-base resistance test, but the epoxy modified silicone-acrylic emulsion is used as the base film forming material, the epoxy modified silicone-acrylic paint prepared by the above steps can not only reach the detection standards of thermal stability, workability and stain resistance, but also has good performance indexes, smooth spraying during construction, high adhesion index, strong adhesion, good water resistance, and can meet the test requirements for specially increased acid-base resistance and alkali-base resistance detection items, has stronger corrosion resistance and is more suitable for the use of the outer wall of the building.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, but rather, may be embodied in many different forms and varied. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the claims.
Claims (10)
1. The corrosion-resistant epoxy modified silicon-acrylic real stone paint is characterized by comprising a base material serving as a component A and natural colored sand serving as a component B, wherein the component A comprises the following components in parts by weight: and the component B is 25-35: 65-75, wherein the component A is prepared from the following raw materials:
epoxy modified silicone-acrylate emulsion: 46 to 50 percent of
Water: 42.05-47.25
Cellulose ether: 0.7 to 0.8 percent
Clay: 0.15 to 0.2 percent
2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: 2.7 to 3 percent
An antifreezing agent: 2.5 to 3 percent
pH regulators: 0.3 to 0.4 percent
And (3) bactericide: 0.3 to 0.4 percent
Thickening agent: 0.1 to 0.15 percent of,
the above percentages are weight percentages.
2. The corrosion-resistant epoxy-modified silicon-acrylic true stone paint of claim 1 wherein the cellulose ether is a methyl cellulose ether, an ethyl cellulose ether, a hydroxymethyl cellulose ether, a hydroxyethyl cellulose ether, a hydroxypropyl cellulose ether or a methyl hydroxypropyl cellulose ether.
3. The corrosion-resistant epoxy-modified silicon-acrylic true stone paint according to claim 2, wherein the clay is modified inorganic bentonite.
4. The corrosion-resistant epoxy modified silicon acrylic paint as claimed in claim 1, wherein the pH regulator is 2-amino-2-methyl-1 propanol or ammonia water.
5. The corrosion-resistant epoxy-modified silicon-acrylic real stone paint as claimed in claim 1, wherein the anti-freezing agent is ethylene glycol or propylene glycol.
6. The corrosion-resistant epoxy-modified silicon-propylene-stone paint of claim 1, wherein the film forming aid is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate of Iseman.
7. The corrosion-resistant epoxy-modified silicon acrylic paint according to claim 1, wherein the bactericide is isothiazolinone or imidazole derivative.
8. The corrosion-resistant epoxy-modified silicon acrylic true stone paint as claimed in claim 1, wherein the thickener is an alkali swelling thickener.
9. The corrosion-resistant epoxy modified silicon acrylic true stone paint according to claim 1, characterized in that the preparation comprises the following steps:
step S1: adding cellulose ether and clay into water, dispersing at a high speed until the cellulose ether and the clay are uniformly dispersed, then adding a pH regulator until the cellulose ether and the clay are completely dissolved, sequentially adding an antifreezing agent and a film-forming aid, stirring for 10 minutes at 500-800 r/min, then adding an epoxy modified silicone-acrylate emulsion, dispersing uniformly, then adding a bactericide and a thickening agent which are diluted by 1: 1 with water, and adjusting to a proper viscosity;
step S2: adding the B component natural colored sand with the preset color and mesh number into the A component and uniformly stirring.
10. The corrosion-resistant epoxy-modified silicone acrylic paint according to claim 1, wherein the preparation of the epoxy-modified silicone acrylic emulsion comprises the following steps:
step S1: adding water, emulsifier, 1/5 mixed monomer of acrylic acid and styrene, and appropriate amount of sodium bicarbonate into a four-neck flask equipped with a stirrer, a constant pressure dropping funnel and a condenser, and rapidly stirring;
step S2: adjusting a proper stirring speed when the temperature is raised to 75 ℃, adding 1/3 initiator, continuously stirring and raising the temperature to 78-80 ℃, and keeping the temperature for 0.5h after a blue heat release peak appears;
step S3: dissolving the residual mixed monomer of acrylic acid and styrene in epoxy resin E-44, uniformly mixing the mixed monomer with organosilicon VIES, preparing 2% of initiator solution, simultaneously dropwise adding the residual monomer (containing epoxy resin E-44 and organosilicon VIES) and the initiator solution at 78-80 ℃, finishing dropping for 3-4 h, keeping the temperature at 80-82 ℃ for 1h, cooling to below 40 ℃, and adding ammonia water to adjust the pH to 7.5-8 (pH test paper);
step S4: filtering with a filter cloth to obtain the epoxy modified silicone-acrylate emulsion.
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