CN112062886A - Styrene-acrylic emulsion for color steel paint and preparation method thereof - Google Patents
Styrene-acrylic emulsion for color steel paint and preparation method thereof Download PDFInfo
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- CN112062886A CN112062886A CN202010947835.3A CN202010947835A CN112062886A CN 112062886 A CN112062886 A CN 112062886A CN 202010947835 A CN202010947835 A CN 202010947835A CN 112062886 A CN112062886 A CN 112062886A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—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
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
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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
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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Abstract
The invention discloses a styrene-acrylic emulsion for color steel paint, which is characterized by being prepared from the following raw materials in parts by weight: 8.5-9.5 parts of acrylamide, 110-120 parts of styrene, 100-110 parts of butyl acrylate, 4.5-5.3 parts of acrylic acid, 2-3 parts of a silane coupling agent, 3-5 parts of sodium alkyl benzene sulfonate, 0.5-4 parts of sodium dodecyl diphenyl ether disulfonate, 1.3-2 parts of ammonium persulfate, 0.2-0.4 part of tert-butyl hydroperoxide, 0.1-0.2 part of sodium formaldehyde sulfoxylate, 2.5-3.2 parts of ammonia water, 1-1.5 parts of a film forming aid and 230-250 parts of deionized water; the invention also discloses a preparation method of the styrene-acrylic emulsion for the color steel paint. The carboxyl styrene-acrylic latex in the styrene-acrylic emulsion for the color steel paint has the characteristics of acid and alkali resistance, rust resistance, weather resistance and the like, and also has the advantages of low cost, simple process, environment-friendly materials and the like.
Description
Technical Field
The invention relates to the technical field of styrene-acrylic emulsion, in particular to styrene-acrylic emulsion for color steel paint and a preparation method thereof.
Background
The color steel prefabricated house is a product which is continuously improved and evolved in the industrialized process, the simple, convenient, firm and beautiful iron sheet heat-insulation house can be seen in cities, rural areas, agricultural planting, chemical enterprises and breeding production living areas, the economic ratio is increased year by year, how to improve the durable quality of the color steel house is also a most crucial selling point of color steel manufacturers, and the color steel house needs to have excellent adhesive force with various base materials such as metal roof boards, concrete, SBS coiled materials, glass, acrylic and the like, and is suitable for iron sheet coating primer emulsion with outstanding sealing performance on the surfaces of various complex shapes.
Although a common iron sheet house is painted but not corrosion-resistant, rusted, the service life is probably 3-5 years due to factors such as exposure, rain, weathering and the like, the service life of the iron sheet of the color steel in a severe environment area is also shortened, the economic burden is increased for a builder, and the quality brand reputation of a manufacturer is greatly discounted, so that the styrene-acrylic emulsion for the color steel paint and the preparation method thereof are provided
Disclosure of Invention
The invention aims to provide a styrene-acrylic emulsion for color steel paint and a preparation method thereof, aiming at the defects of poor corrosion resistance, short service life and the like of the common color steel paint in practical application, the carboxyl styrene-acrylic emulsion in the patent has the characteristics of acid and alkali resistance, corrosion resistance, weather resistance and the like, and also has the advantages of low cost, simple process, environment-friendly material and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the styrene-acrylic emulsion for the color steel paint is characterized by being prepared from the following raw materials in parts by weight: 8.5-9.5 parts of acrylamide, 110-120 parts of styrene, 100-110 parts of butyl acrylate, 4.5-5.3 parts of acrylic acid, 2-3 parts of a silane coupling agent, 3-5 parts of sodium alkyl benzene sulfonate, 0.5-4 parts of sodium dodecyl diphenyl ether disulfonate, 1.3-2 parts of ammonium persulfate, 0.2-0.4 part of tert-butyl hydroperoxide, 0.1-0.2 part of sodium formaldehyde sulfoxylate, 2.5-3.2 parts of ammonia water, 1-1.5 parts of a film forming aid and 230-250 parts of deionized water.
Preferably, the styrene-acrylic emulsion for the color steel paint is prepared from the following raw materials in parts by weight: 8.9 parts of acrylamide, 113 parts of styrene, 107 parts of butyl acrylate, 4.8 parts of acrylic acid, 2.2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1-1 part of a film-forming aid and 235 parts of deionized water.
Preferably, the styrene-acrylic emulsion for the color steel paint is prepared from the following raw materials in parts by weight: 8.7 parts of acrylamide, 115 parts of styrene, 105 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming assistant and 235 parts of deionized water.
Preferably, the styrene-acrylic emulsion for the color steel paint is prepared from the following raw materials in parts by weight: 9.0 parts of acrylamide, 112 parts of styrene, 108 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming assistant and 235 parts of deionized water.
Preferably, the film-forming assistant is also called a coalescing assistant, can promote the plastic flow and elastic deformation of a high molecular compound, improve the coalescing performance, can form a film in a wider construction temperature range, volatilizes after film formation, and does not influence the characteristics of a coating film.
The preparation method of the styrene-acrylic emulsion for the color steel paint specifically comprises the following steps:
1) weighing the following substances in parts by mass for later use: 8.5-9.5 parts of acrylamide, 110-120 parts of styrene, 100-110 parts of butyl acrylate, 4.5-5.3 parts of acrylic acid, 2-3 parts of a silane coupling agent, 3-5 parts of sodium alkyl benzene sulfonate, 0.5-4 parts of sodium dodecyl diphenyl ether disulfonate, 1.3-2 parts of ammonium persulfate, 0.2-0.4 part of tert-butyl hydroperoxide, 0.1-0.2 part of sodium formaldehyde sulfoxylate, 2.5-3.2 parts of ammonia water, 1-1.5 parts of a film forming aid and 230-250 parts of deionized water;
2) firstly adding 40% of water into an emulsification kettle, starting stirring, adding 100% of sodium alkyl benzene sulfonate, then sequentially adding 100% of acrylamide, 100% of styrene, 100% of butyl acrylate and 100% of acrylic acid, and emulsifying for 45 minutes for later use;
3) adding 60% of water into a reaction kettle, heating to 80 ℃, adding 100% of sodium dodecyl diphenyl ether disulfonate, continuing heating to 86 ℃, adding 30% of ammonium persulfate, starting dropwise adding the emulsion and the rest of ammonium persulfate after 1 minute, wherein the dropwise adding time is 2.5 hours, the reaction temperature is controlled to 88-90 ℃, the dropwise adding is finished, and the heat preservation reaction is carried out for 1 hour at 88-95 ℃;
4) after the heat preservation is finished, cooling to 75 ℃, adding 60% of tert-butyl hydroperoxide, dripping 60% of rongalite, then preserving the heat for 15 minutes, then cooling to 65 ℃, adding the rest of tert-butyl hydroperoxide, dripping the rest of rongalite, and then preserving the heat for 15 minutes;
5) and after the heat preservation is finished, cooling to 45 ℃, adding ammonia water to adjust the pH value to 7.5-8.3, stirring for 15 minutes, adding 100% of film-forming additive, and stirring uniformly to obtain the styrene-acrylic emulsion for the color steel paint.
Preferably, the styrene-acrylic emulsion for the color steel paint prepared by the method has the solid content of 47.2-47.7%, the viscosity of 800-3000mPa.S, the particle size of 100-120 nm and the pH value of 7.5-8.3.
The invention has the beneficial effects that: the emulsion for the color steel paint provided by the invention has the advantages of less harmful odor, low cost, simple process, environment-friendly materials, suitability for various iron parts, color steel sheet iron and the like, good acid, alkali, rust and weather resistance and the like, can resist the corrosion of various acids and alkalis and general chemicals, particularly has outstanding water resistance and rust resistance, prolongs the service life of color steel by times, and has good application prospect.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Specific reference examples are as follows:
the first embodiment is as follows:
1) taking 8.9 parts of acrylamide, 113 parts of styrene, 107 parts of butyl acrylate, 4.8 parts of acrylic acid, 2.2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming aid and 235 parts of deionized water for later use;
2) adding 40% of water into an emulsifying kettle, starting stirring, adding 100% of sodium alkyl benzene sulfonate, sequentially adding 100% of acrylamide, 100% of styrene, 100% of butyl acrylate and 100% of acrylic acid, and emulsifying for 45 minutes for later use;
3) adding 60% of water into a reaction kettle, heating to 80 ℃, adding 100% of sodium dodecyl diphenyl ether disulfonate, continuing heating to 86 ℃, adding 30% of ammonium persulfate, starting dropwise adding the emulsion and the rest of ammonium persulfate after 1 minute, wherein the dropwise adding time is 2.5 hours, the reaction temperature is controlled to 88-90 ℃, the dropwise adding is finished, and the heat preservation reaction is carried out for 1 hour at 88-95 ℃;
4) after the heat preservation is finished, cooling to 75 ℃, adding 60% of tert-butyl hydroperoxide, dripping 60% of rongalite, then preserving the heat for 15 minutes, then cooling to 65 ℃, adding the rest of tert-butyl hydroperoxide, dripping the rest of rongalite, and then preserving the heat for 15 minutes;
5) and after the heat preservation is finished, cooling to 45 ℃, adding ammonia water to adjust the pH value to 7.5-8.3, stirring for 15 minutes, adding 100% of film-forming additive, and stirring uniformly to obtain the styrene-acrylic emulsion for the color steel paint.
Example two:
1) taking 8.7 parts of acrylamide, 115 parts of styrene, 105 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming aid and 235 parts of deionized water for later use;
2) adding 40% of water into an emulsifying kettle, starting stirring, adding 100% of sodium alkyl benzene sulfonate, sequentially adding 100% of acrylamide, 100% of styrene, 100% of butyl acrylate and 100% of acrylic acid, and emulsifying for 45 minutes for later use;
3) adding 60% of water into a reaction kettle, heating to 80 ℃, adding 100% of sodium dodecyl diphenyl ether disulfonate, then continuing heating to 86 ℃, adding 30% of ammonium persulfate, beginning to dropwise add the emulsion and the rest of ammonium persulfate after 1 minute, wherein the dropwise adding time is 2.5 hours, and the reaction temperature is controlled at 88-90 ℃. After the dropwise addition is finished, keeping the temperature of 88-95 ℃ for reaction for 1 hour;
4) after the heat preservation is finished, cooling to 75 ℃, adding 60% of tert-butyl hydroperoxide, dripping 60% of rongalite, then preserving the heat for 15 minutes, then cooling to 65 ℃, adding the rest of tert-butyl hydroperoxide, dripping the rest of rongalite, and then preserving the heat for 15 minutes;
5) and after the heat preservation is finished, cooling to 45 ℃, adding ammonia water to adjust the pH value to 7.5-8.3, stirring for 15 minutes, adding 100% of film-forming additive, and stirring uniformly to obtain the styrene-acrylic emulsion for the color steel paint.
Example three:
1) 9.0 parts of acrylamide, 112 parts of styrene, 108 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming aid and 235 parts of deionized water for later use;
2) adding 40% of water into an emulsifying kettle, starting stirring, adding 100% of sodium alkyl benzene sulfonate, sequentially adding 100% of acrylamide, 100% of styrene, 100% of butyl acrylate and 100% of acrylic acid, and emulsifying for 45 minutes for later use;
3) adding 60% of water into a reaction kettle, heating to 80 ℃, adding 100% of sodium dodecyl diphenyl ether disulfonate, continuing heating to 86 ℃, adding 30% of ammonium persulfate, starting dropwise adding the emulsion and the rest of ammonium persulfate after 1 minute, wherein the dropwise adding time is 2.5 hours, the reaction temperature is controlled to 88-90 ℃, the dropwise adding is finished, and the heat preservation reaction is carried out for 1 hour at 88-95 ℃;
4) after the heat preservation is finished, cooling to 75 ℃, adding 60% of tert-butyl hydroperoxide, dripping 60% of rongalite, then preserving the heat for 15 minutes, then cooling to 65 ℃, adding the rest of tert-butyl hydroperoxide, dripping the rest of rongalite, and then preserving the heat for 15 minutes;
5) and after the heat preservation is finished, cooling to 45 ℃, adding ammonia water to adjust the pH value to 7.5-8.3, stirring for 15 minutes, adding 100% of film-forming additive, and stirring uniformly to obtain the styrene-acrylic emulsion for the color steel paint.
The styrene-acrylic emulsion for color steel paint in the embodiment meets the index requirements of color steel paint in the aspects of adhesive force, glossiness, flexibility, weather resistance, salt spray resistance and the like in practical application, and is prepared from the following components in percentage by weight: 47.2-47.7%, viscosity of 800-: 100-120 nm, and pH of 7.5-8.3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The styrene-acrylic emulsion for the color steel paint is characterized by being prepared from the following raw materials in parts by weight: 8.5-9.5 parts of acrylamide, 110-120 parts of styrene, 100-110 parts of butyl acrylate, 4.5-5.3 parts of acrylic acid, 2-3 parts of a silane coupling agent, 3-5 parts of sodium alkyl benzene sulfonate, 0.5-4 parts of sodium dodecyl diphenyl ether disulfonate, 1.3-2 parts of ammonium persulfate, 0.2-0.4 part of tert-butyl hydroperoxide, 0.1-0.2 part of sodium formaldehyde sulfoxylate, 2.5-3.2 parts of ammonia water, 1-1.5 parts of a film forming aid and 230-250 parts of deionized water.
2. The styrene-acrylic emulsion for color steel paint as claimed in claim 1 is characterized by being prepared from the following raw materials in proportion: 8.9 parts of acrylamide, 113 parts of styrene, 107 parts of butyl acrylate, 4.8 parts of acrylic acid, 2.2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1-1 part of a film-forming aid and 235 parts of deionized water.
3. The styrene-acrylic emulsion for color steel paint as claimed in claim 1 is characterized by being prepared from the following raw materials in proportion: 8.7 parts of acrylamide, 115 parts of styrene, 105 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming assistant and 235 parts of deionized water.
4. The styrene-acrylic emulsion for color steel paint as claimed in claim 1 is characterized by being prepared from the following raw materials in proportion: 9.0 parts of acrylamide, 112 parts of styrene, 108 parts of butyl acrylate, 4.8 parts of acrylic acid, 2 parts of a silane coupling agent, 4 parts of sodium alkyl benzene sulfonate, 3.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.7 parts of ammonium persulfate, 0.3 part of tert-butyl hydroperoxide, 0.15 part of sodium formaldehyde sulfoxylate, 3 parts of ammonia water, 1 part of a film-forming assistant and 235 parts of deionized water.
5. The styrene-acrylic emulsion for color steel paint as claimed in claim 1, wherein the film-forming assistant is also called coalescing assistant, and can promote plastic flow and elastic deformation of high molecular compound, improve coalescing performance, form film in a wider application temperature range, volatilize after film formation, and not affect the characteristics of the coating film.
6. A preparation method of styrene-acrylic emulsion for color steel paint is characterized by comprising the following steps: the method specifically comprises the following steps:
1) weighing the following substances in parts by mass for later use: 8.5-9.5 parts of acrylamide, 110-120 parts of styrene, 100-110 parts of butyl acrylate, 4.5-5.3 parts of acrylic acid, 2-3 parts of a silane coupling agent, 3-5 parts of sodium alkyl benzene sulfonate, 0.5-4 parts of sodium dodecyl diphenyl ether disulfonate, 1.3-2 parts of ammonium persulfate, 0.2-0.4 part of tert-butyl hydroperoxide, 0.1-0.2 part of sodium formaldehyde sulfoxylate, 2.5-3.2 parts of ammonia water, 1-1.5 parts of a film forming aid and 230-250 parts of deionized water;
2) firstly adding 40% of water into an emulsification kettle, starting stirring, adding 100% of sodium alkyl benzene sulfonate, then sequentially adding 100% of acrylamide, 100% of styrene, 100% of butyl acrylate and 100% of acrylic acid, and emulsifying for 45 minutes for later use;
3) adding 60% of water into a reaction kettle, heating to 80 ℃, adding 100% of sodium dodecyl diphenyl ether disulfonate, continuing heating to 86 ℃, adding 30% of ammonium persulfate, starting dropwise adding the emulsion and the rest of ammonium persulfate after 1 minute, wherein the dropwise adding time is 2.5 hours, the reaction temperature is controlled to 88-90 ℃, the dropwise adding is finished, and the heat preservation reaction is carried out for 1 hour at 88-95 ℃;
4) after the heat preservation is finished, cooling to 75 ℃, adding 60% of tert-butyl hydroperoxide, dripping 60% of rongalite, then preserving the heat for 15 minutes, then cooling to 65 ℃, adding the rest of tert-butyl hydroperoxide, dripping the rest of rongalite, and then preserving the heat for 15 minutes;
5) and after the heat preservation is finished, cooling to 45 ℃, adding ammonia water to adjust the pH value to 7.5-8.3, stirring for 15 minutes, adding 100% of film-forming additive, and stirring uniformly to obtain the styrene-acrylic emulsion for the color steel paint.
7. The preparation method of the styrene-acrylic emulsion for the color steel paint as claimed in claim 6, wherein the preparation method comprises the following steps: the styrene-acrylic emulsion for the color steel paint prepared by the method has the solid content of 47.2-47.7%, the viscosity of 800-3000mPa.S, the particle size of 100-120 nm and the pH value of 7.5-8.3.
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| CN202010947835.3A CN112062886A (en) | 2020-09-10 | 2020-09-10 | Styrene-acrylic emulsion for color steel paint and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114437277A (en) * | 2022-01-10 | 2022-05-06 | 浙江圣美环保材料有限公司 | Production formula and synthesis process of water-based acrylic resin |
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| CN110818829A (en) * | 2019-11-27 | 2020-02-21 | 威县双赢化工有限公司 | High-water-resistance waterproof emulsion and preparation method thereof |
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2020
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| CN105367696A (en) * | 2015-09-18 | 2016-03-02 | 常熟巴德富科技有限公司 | Elastic raindrop impression resisting styrene-acrylic emulsion and preparation method thereof |
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| CN114437277A (en) * | 2022-01-10 | 2022-05-06 | 浙江圣美环保材料有限公司 | Production formula and synthesis process of water-based acrylic resin |
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Application publication date: 20201211 |