CN113881267A - Chlorinated rubber anticorrosive paint and preparation method thereof - Google Patents
Chlorinated rubber anticorrosive paint and preparation method thereof Download PDFInfo
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- CN113881267A CN113881267A CN202111248379.4A CN202111248379A CN113881267A CN 113881267 A CN113881267 A CN 113881267A CN 202111248379 A CN202111248379 A CN 202111248379A CN 113881267 A CN113881267 A CN 113881267A
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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
-
- 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
- C08F253/00—Macromolecular compounds obtained by polymerising monomers on to natural rubbers or derivatives thereof
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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
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
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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
- C09D151/04—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 rubbers
-
- 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
- C09D7/43—Thickening agents
- C09D7/44—Combinations of two or more thickening agents
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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
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention belongs to the technical field of chemical coatings, and particularly relates to a chlorinated rubber anticorrosive paint and a preparation method thereof, wherein the chlorinated rubber anticorrosive paint comprises the following raw materials: chlorinated rubber, acrylate monomer, cosolvent, initiator, plasticizer, thickener, stabilizer, filler and water; wherein the mass ratio of the chlorinated rubber to the acrylate monomer to the thickener is 1: 0.2-0.5: 0.1-0.3. According to the invention, an acrylate monomer with a hydrophilic group is grafted into chlorinated rubber, and the mass ratio of the chlorinated rubber to the acrylate monomer to a thickening agent is strictly controlled to be 1: 0.2-0.5: 0.1-0.3, the obtained chlorinated rubber anticorrosive paint has good adhesive force and water resistance, the thickness of the paint coated once can meet the use requirement, the drying speed is high, and the use is convenient.
Description
Technical Field
The invention belongs to the technical field of chemical coatings, and particularly relates to a chlorinated rubber anticorrosive paint and a preparation method thereof.
Background
The chlorinated rubber is one of chlorinated polymers obtained by chlorination modification of natural rubber or synthetic rubber. Because of its excellent film-forming property, adhesion, corrosion resistance, fire resistance and insulativity, it can be extensively used for making adhesive, ship paint, container paint, chemical anticorrosion paint, road marking paint, fire-resisting paint, building coating and printing ink, etc., and is one of chlorine series fine chemical products with good development prospect.
The anti-corrosion paint is used on the surface of an object to protect the interior of the object from corrosion, can be used under severe conditions, and has better durability and weather resistance. The chlorinated rubber anticorrosive paint is prepared with chlorinated rubber resin, toughening agent, pigment, antirust pigment, stuffing and assistant. Has good resistance to atmosphere, moisture, salt, alkali and acid and has better outdoor weather resistance. The method is suitable for protecting ships, ports, railway facilities, offshore oil production platforms, bridges, petroleum, chemical engineering, smelting and steel equipment, containers, pipelines, concrete surfaces and plant structures. The chlorinated rubber anticorrosive paint has better acid and salt corrosion resistance and atmospheric corrosion resistance. However, the conventional chlorinated rubber anticorrosive paint is generally coated more than twice, each coating needs more than 6 hours, the last primer is coated after 24 hours, the first finish is coated, and the chlorinated rubber anticorrosive paint can be used after being dried for 7-10 days at normal temperature after the last finish is coated, so that the coating steps are complicated and the time is long. The development of a chlorinated rubber anticorrosive paint with simple coating steps and fast coating film drying is very necessary.
Disclosure of Invention
The invention aims to provide chlorinated rubber anticorrosive paint and a preparation method thereof.
In order to achieve the purpose, the chlorinated rubber anticorrosive paint comprises the following raw materials: chlorinated rubber, acrylate monomer, cosolvent, initiator, plasticizer, thickener, stabilizer, filler and water; wherein the content of the first and second substances,
the mass ratio of the chlorinated rubber to the acrylate monomer to the thickener is 1: 0.2-0.5: 0.1-0.3.
According to the technical scheme, the proportion of the chlorinated rubber, the acrylate monomer and the thickening agent is controlled, so that the obtained chlorinated rubber anticorrosive paint has certain water-based property and good fluidity, the coated dry film is easier to dry, the original water resistance is kept, and the anticorrosive performance is good.
Further, in the above technical scheme, the raw materials comprise, by weight: 100 parts of chlorinated rubber; 20-50 parts of an acrylate monomer; 200 portions and 300 portions of cosolvent; 1-5 parts of an initiator; 20-40 parts of a plasticizer; 10-30 parts of a thickening agent; 2-4 parts of a stabilizer; 1-3 parts of a filler; water 250-300 parts.
Further, in the above technical solution, the acrylate monomer is any one of methyl methacrylate, ethyl methacrylate, butyl methacrylate, or hydroxyethyl methacrylate. In the technical scheme, the acrylate monomer contains hydrophilic groups, and the water-based property of the acrylate monomer can be improved after the acrylate monomer is grafted to chlorinated rubber, so that the drying speed and the adhesive force can be improved while the fluidity is increased.
Further, in the above technical scheme, the cosolvent is at least one of ethyl acetate, ethanol or n-butanol; the initiator is any one of azodiisobutyronitrile or benzoyl peroxide; the plasticizer is any one of dioctyl phthalate, butyl benzyl phthalate or dibutyl phthalate. The ester alcohol solvent used in the technical scheme has low toxicity, safety and easy volatilization, and the drying speed of the dry film is further improved.
Further, in the technical scheme, the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite in a mass ratio of 3-7: 1-3. The thickening mechanism of the methyl hydroxypropyl cellulose in the technical scheme is that a hydrophobic main chain is associated with surrounding water molecules through hydrogen bonds, so that the fluid volume of the polymer is increased, the free movement space of particles is reduced, and the viscosity of the system is increased; the bentonite is a layered silicate, expands to form flocculent substances after absorbing water, has good suspension property and dispersibility, is combined with a proper amount of water to form colloid, can release charged particles in the water, and increases the viscosity of the system; the invention improves the viscosity and the stability by controlling the proportion of the two components.
Further, in the above technical scheme, the stabilizer is any one of dibutyltin dilaurate or methyl tin mercaptide; the filler is glass flakes. In the technical scheme, the compatibility and the thermal stability of all raw materials can be improved by adopting the nontoxic organic tin stabilizer, and the method is safe and environment-friendly. By adding the glass flakes, the adhesive force and the ageing resistance of the anticorrosive paint can be increased, and the anticorrosive effect is good.
The invention also provides a preparation method of the chlorinated rubber anticorrosive paint, which comprises the following steps:
s1, preparing raw materials according to a ratio;
s2, respectively adding chlorinated rubber, half of cosolvent and initiator into a reactor, uniformly stirring under the protection of nitrogen, and heating to 75-85 ℃;
s3, dissolving an acrylate monomer in the other half of the cosolvent, dropwise adding the acrylate monomer into the solution obtained in the step S1 while stirring, after dropwise adding is completed, adding water, and continuously stirring for reaction for 3-5 hours;
and S4, under the protection of nitrogen, respectively adding the plasticizer, the thickening agent, the stabilizing agent and the filler into the solution obtained in the step S3, uniformly stirring, and carrying out heat preservation reaction for 3-4 hours to obtain the chlorinated rubber anticorrosive paint.
Further, in the above technical solutions S2 and S3, the stirring speed is controlled at 500 r/min; in S4, the stirring speed is controlled at 1000-2000r/min, and the reaction temperature is 35-55 ℃.
Further, the grafting ratio of the acrylate monomer in the technical scheme is 3-6%. According to the technical scheme, the grafting rate of the acrylate monomer is controlled, so that the chlorinated rubber anticorrosive paint has certain water-based performance, and the water resistance of the original chlorinated rubber is kept.
Further, in the technical scheme, the drying time of the chlorinated rubber anticorrosive paint is less than 6h, and the coating times are 1-2.
The invention has the beneficial effects that:
1. according to the invention, the acrylate monomer with the hydrophilic group is grafted to the chlorinated rubber, and the grafted rate is controlled to obtain the chlorinated rubber with certain water-based property, so that the chlorinated rubber has good fluidity, a coated dry film is easy to dry, and the original water resistance is kept;
2. according to the invention, the adhesive property and coating thickness of the chlorinated rubber anticorrosive paint can be improved by controlling the using amount of the thickening agent, and the chlorinated rubber anticorrosive paint can meet the standard requirement only by coating for 1-2 times;
3. the chlorinated rubber anticorrosive paint prepared by the invention has good stability and coating property, the drying time is less than 6h, the speed is high, and the use is convenient;
4. the preparation method has the advantages of simple operation, low toxicity or no toxicity of the used raw materials, safety, environmental protection and no pollution.
Detailed Description
The experimental procedures in the following examples are conventional unless otherwise specified. The raw materials in the following examples are all commercially available products and are commercially available, unless otherwise specified.
The present invention is described in further detail below with reference to examples:
example 1
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 20 parts of methyl methacrylate; 200 parts of ethyl acetate; 2 parts of benzoyl peroxide; 20 parts of dioctyl phthalate; 10 parts of a thickening agent; 2 parts of dibutyltin dilaurate; 2 parts of glass scale; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 3: 1.
The preparation method specifically comprises the following steps:
s1, preparing raw materials according to a ratio;
s2, respectively adding chlorinated rubber, half of cosolvent and initiator into a reactor, stirring uniformly at the rotating speed of 300r/min under the protection of nitrogen, and heating to 85 ℃;
s3, dissolving an acrylate monomer in the other half of the cosolvent, dropwise adding the acrylate monomer into the solution obtained in the step S1 while stirring, after dropwise adding is completed, adding water, and continuously stirring and reacting for 3 hours at the rotating speed of 500 r/min;
and S4, under the protection of nitrogen, respectively adding a plasticizer, a thickening agent, a stabilizing agent and a filler into the solution obtained in the step S3, uniformly stirring at the rotating speed of 1000r/min, and carrying out heat preservation reaction at 55 ℃ for 3 hours to obtain the chlorinated rubber anticorrosive paint.
Example 2
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 40 parts of ethyl methacrylate; 250 parts of ethanol; 3 parts of azobisisobutyronitrile; 30 parts of butyl benzyl phthalate; 20 parts of a thickening agent; 2 parts of methyl tin mercaptide; 1 part of glass flake; and 250 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 5: 2.
The preparation method specifically comprises the following steps:
s1, preparing raw materials according to a ratio;
s2, respectively adding chlorinated rubber, half of cosolvent and initiator into a reactor, stirring uniformly at the rotating speed of 400r/min under the protection of nitrogen, and heating to 80 ℃;
s3, dissolving an acrylate monomer in the other half of the cosolvent, dropwise adding the acrylate monomer into the solution obtained in the step S1 while stirring, after dropwise adding is completed, adding water, and continuously stirring and reacting for 4 hours at the rotating speed of 400 r/min;
and S4, under the protection of nitrogen, respectively adding a plasticizer, a thickening agent, a stabilizing agent and a filler into the solution obtained in the step S3, uniformly stirring at the rotating speed of 1500r/min, and carrying out heat preservation reaction at 45 ℃ for 5 hours to obtain the chlorinated rubber anticorrosive paint.
Example 3
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 50 parts of butyl methacrylate; 300 parts of n-butyl alcohol; 5 parts of benzoyl peroxide; 40 parts of dibutyl phthalate; 30 parts of a thickening agent; 4 parts of dibutyltin dilaurate; 3 parts of glass flakes; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 7: 2.
The preparation method specifically comprises the following steps:
s1, preparing raw materials according to a ratio;
s2, respectively adding chlorinated rubber, half of cosolvent and initiator into a reactor, stirring uniformly at the rotating speed of 500r/min under the protection of nitrogen, and heating to 75 ℃;
s3, dissolving an acrylate monomer in the other half of cosolvent, dropwise adding the acrylate monomer into the solution obtained in the step S1, stirring while dropwise adding, adding water after dropwise adding is finished, and continuously stirring and reacting for 5 hours at the rotating speed of 300 r/min;
and S4, under the protection of nitrogen, respectively adding a plasticizer, a thickening agent, a stabilizing agent and a filler into the solution obtained in the step S3, uniformly stirring at the rotating speed of 2000r/min, and carrying out heat preservation reaction at 35 ℃ for 4 hours to obtain the chlorinated rubber anticorrosive paint.
Comparative example 1
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 100 parts of methyl methacrylate; 200 parts of ethyl acetate; 2 parts of benzoyl peroxide; 20 parts of dioctyl phthalate; 10 parts of a thickening agent; 2 parts of dibutyltin dilaurate; 2 parts of glass scale; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 3: 1.
The preparation method is the same as example 1.
Comparative example 2
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 5 parts of methyl methacrylate; 200 parts of ethyl acetate; 2 parts of benzoyl peroxide; 20 parts of dioctyl phthalate; 10 parts of a thickening agent; 2 parts of dibutyltin dilaurate; 2 parts of glass scale; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 3: 1.
The preparation method is the same as example 1.
Comparative example 3
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 20 parts of methyl methacrylate; 200 parts of ethyl acetate; 2 parts of benzoyl peroxide; 20 parts of dioctyl phthalate; 5 parts of a thickening agent; 2 parts of dibutyltin dilaurate; 2 parts of glass scale; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 3: 1.
The preparation method is the same as example 1.
Comparative example 4
A preparation method of chlorinated rubber anticorrosive paint comprises the following raw materials in parts by weight: 100 parts of chlorinated rubber; 20 parts of methyl methacrylate; 200 parts of ethyl acetate; 2 parts of benzoyl peroxide; 20 parts of dioctyl phthalate; 50 parts of a thickening agent; 2 parts of dibutyltin dilaurate; 2 parts of glass scale; 300 parts of water. Wherein the thickening agent is a mixture of methyl hydroxypropyl cellulose and bentonite with the mass ratio of 3: 1.
The preparation method is the same as example 1.
And (3) performance testing:
the chlorinated rubber anticorrosive paints prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to the test of the grafting ratio of the acrylate monomer, and the results are shown in Table 1.
The chlorinated rubber anticorrosive paints prepared in examples 1 to 3 and comparative examples 1 to 4 were tested according to the test method of GBT13452.2-2008 on the thickness of paint films of paints and varnishes; GB/T1728-2020 paint film and putty film drying time determination method; GB/T1732-2020 determination of paint film impact resistance; GB/T1733-1993 determination of water resistance of paint films; GB/T9286-1998 test for marking out paint films for paints and varnishes; the results are shown in Table 1.
TABLE 1 test results table
As can be seen from the test results in Table 1, the chlorinated rubber anticorrosive paint prepared in examples 1-3 of the present invention has an acrylate monomer grafting rate of 3.9-5.5%, good adhesion and water resistance, a thickness of one coating can meet the use requirements, a fast drying speed, and excellent properties.
Comparing the results of example 1 and comparative examples 1 to 4, when the mass ratio of the chlorinated rubber, the acrylate monomer and the thickener in comparative example 1 is 1: 1: when the thickness is 0.1, the adhesive force, the water resistance, the drying speed and the dry film thickness of the chlorinated rubber anticorrosive paint are all worse than those of the chlorinated rubber anticorrosive paint in example 1; when the mass ratio of the chlorinated rubber, the acrylate monomer and the thickener in comparative example 2 is 1: 0.1: when the thickness is 0.1, the adhesive force, the drying speed and the dry film thickness of the chlorinated rubber anticorrosive paint are slightly worse than those of the chlorinated rubber anticorrosive paint in the embodiment 1; when the mass ratio of the chlorinated rubber, the acrylate monomer and the thickener in comparative example 3 is 1: 0.2: when the thickness is 0.05, the adhesive force, the water resistance and the dry film thickness of the chlorinated rubber anticorrosive paint are all worse than those of the chlorinated rubber anticorrosive paint in example 1; when the mass ratio of the chlorinated rubber, the acrylate monomer and the thickener in comparative example 4 is 1: 0.2: at 0.5, the drying rate of the chlorinated rubber anticorrosive paint is significantly worse than that of example 1. It can be seen that only when the mass ratio of the chlorinated rubber, the acrylate monomer and the thickener is controlled to be 1: 0.2-0.5: when the thickness is 0.1-0.3, the obtained chlorinated rubber anticorrosive paint has good adhesive force and water resistance, the thickness of the paint coated once can meet the use requirement, and the drying speed is high.
In summary, the invention grafts the acrylate monomer with hydrophilic group into the chlorinated rubber, and simultaneously controls the mass ratio of the chlorinated rubber, the acrylate monomer and the thickening agent to be 1: 0.2-0.5: 0.1-0.3, the obtained chlorinated rubber anticorrosive paint has good adhesive force and water resistance, the thickness of the paint coated once can meet the use requirement, the drying speed is high, and the use is convenient.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (10)
1. The chlorinated rubber anticorrosive paint is characterized by comprising the following raw materials: chlorinated rubber, acrylate monomer, cosolvent, initiator, plasticizer, thickener, stabilizer, filler and water; wherein the content of the first and second substances,
the mass ratio of the chlorinated rubber to the acrylate monomer to the thickener is 1: 0.2-0.5: 0.1-0.3.
2. The chlorinated rubber anticorrosive paint according to claim 1, characterized by comprising the following raw materials in parts by weight: 100 parts of chlorinated rubber; 20-50 parts of an acrylate monomer; 200 portions and 300 portions of cosolvent; 1-5 parts of an initiator; 20-40 parts of a plasticizer; 10-30 parts of a thickening agent; 2-4 parts of a stabilizer; 1-3 parts of a filler; water 250-300 parts.
3. The chlorinated rubber anticorrosive paint according to claim 1 or 2, wherein the acrylate monomer is any one of methyl methacrylate, ethyl methacrylate, butyl methacrylate, or hydroxyethyl methacrylate.
4. The chlorinated rubber anticorrosive paint according to claim 1 or 2, wherein the cosolvent is at least one of ethyl acetate, ethanol or n-butanol; the initiator is any one of azodiisobutyronitrile or benzoyl peroxide; the plasticizer is any one of dioctyl phthalate, butyl benzyl phthalate or dibutyl phthalate.
5. The chlorinated rubber anticorrosive paint according to claim 1 or 2, wherein the thickener is a mixture of methylhydroxypropylcellulose and bentonite in a mass ratio of 3-7: 1-3.
6. The chlorinated rubber anticorrosive paint according to claim 1 or 2, wherein the stabilizer is any one of dibutyltin dilaurate or methyltin mercaptide; the filler is glass flakes.
7. The preparation method of the chlorinated rubber anticorrosive paint according to any one of claims 1 to 6, characterized by comprising the following steps:
s1, preparing raw materials according to a ratio;
s2, respectively adding chlorinated rubber, half of cosolvent and initiator into a reactor, uniformly stirring under the protection of nitrogen, and heating to 75-85 ℃;
s3, dissolving an acrylate monomer in the other half of the cosolvent, dropwise adding the acrylate monomer into the solution obtained in the step S1 while stirring, after dropwise adding is completed, adding water, and continuously stirring for reaction for 3-5 hours;
and S4, under the protection of nitrogen, respectively adding the plasticizer, the thickening agent, the stabilizing agent and the filler into the solution obtained in the step S3, uniformly stirring, and carrying out heat preservation reaction for 3-4 hours to obtain the chlorinated rubber anticorrosive paint.
8. The method for preparing chlorinated rubber anticorrosive paint according to claim 7, wherein in S2 and S3, the stirring speed is controlled at 300-500 r/min; in S4, the stirring speed is controlled at 1000-2000r/min, and the reaction temperature is 35-55 ℃.
9. The method for preparing chlorinated rubber anticorrosive paint according to claim 7, wherein the grafting ratio of the acrylate monomer is 3-6%.
10. The preparation method of the chlorinated rubber anticorrosive paint according to claim 7, wherein the drying time of the chlorinated rubber anticorrosive paint is less than 6h, and the coating times are 1-2.
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CN110527363A (en) * | 2019-08-30 | 2019-12-03 | 四川嘉宝莉涂料有限公司 | A kind of aqueous full dumb light finishing varnish and preparation method thereof that imitative lime stone is specially matched |
CN111302751A (en) * | 2020-02-27 | 2020-06-19 | 济南大学 | Wall material composite material |
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