CN111073412B - Low-temperature-resistant water-based acrylic primer and preparation method thereof - Google Patents
Low-temperature-resistant water-based acrylic primer and preparation method thereof Download PDFInfo
- Publication number
- CN111073412B CN111073412B CN201911259610.2A CN201911259610A CN111073412B CN 111073412 B CN111073412 B CN 111073412B CN 201911259610 A CN201911259610 A CN 201911259610A CN 111073412 B CN111073412 B CN 111073412B
- Authority
- CN
- China
- Prior art keywords
- parts
- temperature
- agent
- low
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a low-temperature-resistant water-based acrylic primer and a preparation method thereof. The low-temperature-resistant water-based acrylic primer comprises the following components in parts by mass: 4-6 parts of grindable acrylic resin, 10-12 parts of an antifreezing agent, 0.2-0.5 part of ammonia water, 0.3-0.5 part of a dispersing agent, 0.5-1 part of a defoaming agent, 0.5-1 part of an anti-flash rust agent, 4.5-5.5 parts of water, 36-38 parts of a powder material, 1-2 parts of a corrosion inhibitor, 28-30 parts of acrylic resin with the lowest film forming temperature of less than or equal to 26 ℃, 2.8-3 parts of a film forming additive, 0.2-0.4 part of a freeze-thaw stabilizer, 0.3-0.5 part of a base material wetting agent and 0.05-0.1 part of a thickening agent. Also discloses a preparation method of the low-temperature resistant water-based acrylic primer. The water-based acrylic primer provided by the invention has the characteristics of high solid content, low temperature resistance and low-temperature film formation, and is suitable for corrosion prevention of steel materials in a low-temperature environment.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to low-temperature-resistant water-based acrylic primer and a preparation method thereof.
Background
The steel material components have larger sizes and complicated and various shapes, so the anticorrosive paint for the steel structure is mostly a natural drying paint. Anticorrosive coating for steel construction can produce a large amount of coating cloud in the work progress, if use solvent-based coating then can produce a large amount of VOCs, both polluted environment also do not benefit to constructor's healthy. Thus, aqueous coatings are the current trend.
The temperature in northern China is usually lower than 10 ℃ every half month to three months next year, even the temperature is as low as-15 ℃ in part of time. At such a low temperature, the water-based self-drying coating has three problems, one is that the freeze-thaw resistance stability of the coating is poor, the liquid coating is frozen at a low temperature, and due to freezing, the volume of ice is increased, and the liquid coating is demulsified and loses efficacy after being thawed, so that the coating fails. The second is that the low-temperature film forming property is poor, the resin film forming needs to reach the lowest film forming temperature of the resin at room temperature, and at the low room temperature, the resin cannot form a film well under the natural drying condition, and the purpose of protecting the base material from corrosion cannot be achieved. A third problem is the drying speed, which is slow due to the low room temperature, particularly slow evaporation of water.
Therefore, how to solve the problems of the water-based paint for the steel structure in the low-temperature environment becomes a technical problem which needs to be overcome urgently by workers in the field.
Disclosure of Invention
In order to dry naturally and apply the water-based acrylic self-drying paint at the temperature of-10 ℃ and solve the problem that the water-based acrylic self-drying paint cannot be applied when the room temperature is below zero in winter in the north, the invention aims to provide a low-temperature-resistant water-based acrylic primer with high solid mass content, the invention aims to provide a preparation method of the water-based acrylic primer, and the invention aims to provide application of the water-based acrylic primer in corrosion prevention of steel materials.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a low-temperature-resistant water-based acrylic primer which comprises the following components in parts by mass: 4-6 parts of a grindable acrylic resin, 10-12 parts of an antifreezing agent, 0.2-0.5 part of ammonia water, 0.3-0.5 part of a dispersing agent, 0.5-1 part of a defoaming agent, 0.5-1 part of a flash rust inhibitor, 4.5-5.5 parts of water, 36-38 parts of a powder material, 1-2 parts of a corrosion inhibitor, 28-30 parts of an acrylic resin with the lowest film forming temperature of less than or equal to 26 ℃, 2.8-3 parts of a film forming additive, 0.2-0.4 part of a freeze-thaw stabilizer, 0.3-0.5 part of a base material wetting agent and 0.05-0.1 part of a thickening agent; wherein the powder material comprises a coloring pigment, an antirust pigment and a filler.
Preferably, in the low temperature resistant waterborne acrylic primer, the abradable acrylic resin is Dismann's A515 resin. The reason for using the a515 resin in the present invention is as follows: the prior art for preparing the paint is to pulp, grind the pulp and then mix the paint. The size is divided into resin-free size and resin-containing size, and all the sizes are resin-free size in the water-based acrylic anticorrosive paint, because the acrylic resin on the market can not be ground at present, and the ground resin is easy to break emulsion to cause paint failure. The slurry is not too thick to be ground sufficiently, so that the resin-free slurry contains a large amount of water and a large amount of powder, and the solid content of the paint prepared by the method is not too high. The A515 resin is one of the few resins which can be ground at present, and the addition of the A515 resin can reduce the addition amount of water in the slurry and improve the solid content.
Preferably, in the low-temperature resistant water-based acrylic primer, the acrylic resin with the lowest film forming temperature less than or equal to 26 ℃ is at least one of KG12 resin, Wanhua 0613 resin and Wanhua 0620 resin of the Landburg.
Preferably, in the low temperature resistant aqueous acrylic primer, the anti-freezing agent is a polyhydric alcohol type anti-freezing agent. In some preferred embodiments of the present invention, the antifreeze is selected from the polyol type antifreeze V200 of weinin (New Material for weinin).
Preferably, in the powder of the low-temperature-resistant water-based acrylic primer, the mass parts of the coloring pigment are 1-3, the mass parts of the anti-rust pigment are 1-3, and the mass parts of the filler are 30-34; the total mass of the coloring pigment, the antirust pigment and the filler meets the requirement that the using amount of the powder is 36-38 parts.
Preferably, in the powder material of the low temperature resistant water-based acrylic primer, the coloring pigment is at least one selected from titanium dioxide, carbon black, black iron oxide, yellow iron oxide, red iron oxide, phthalocyanine blue and phthalocyanine green. The coloring pigment can be selected according to the actual application requirement, and belongs to the conventional technical means in the field.
Preferably, in the powder of the low-temperature resistant water-based acrylic primer, the anti-rust pigment is a mixture of strontium chrome yellow and zinc phosphate; more preferably, the rust-preventive pigment is a mixture of strontium chrome yellow and zinc phosphate in a mass ratio of 1: 1.
Preferably, in the powder material of the low-temperature resistant water-based acrylic primer, the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder; further preferably, the filler is barium sulfate, talcum powder and heavy calcium powder according to a mass ratio of 1:1:1, in a mixture of the components.
Preferably, in the low-temperature-resistant water-based acrylic primer, the film-forming assistant is an alcohol ester film-forming assistant; further preferably, the film forming aid is at least one selected from the group consisting of lauryl alcohol ester and cetyl alcohol ester. In some preferred embodiments of the present invention, the coalescing agent is selected from the group consisting of alcohol esters twelve.
Preferably, in the low-temperature-resistant water-based acrylic primer, the freeze-thaw stabilizer is selected from at least one of fatty alcohol-polyoxyethylene ether and synthetic alcohol-polyoxyethylene ether; further preferably, the freeze-thaw stabilizer is synthetic alcohol polyoxyethylene ether. In some preferred embodiments of the invention, the freeze-thaw stabilizer is ethelan BCD42A from aksunobel. The freeze-thaw stabilizer is environment-friendly and free of VOCs, has certain wetting dispersibility for pigments and fillers, can assist color development, and is good in fluidity and convenient to use and operate.
Preferably, in the low temperature resistant water-based acrylic primer, the dispersant is at least one selected from acrylate dispersants, sodium polycarboxylate dispersants, and pigment affinity group-containing block copolymer dispersants. In some preferred embodiments of the present invention, the dispersant is at least one selected from 731A Dow, SN-1798 of deep bamboo chemical industry, and BYK-190.
Preferably, in the low-temperature resistant water-based acrylic primer, the defoaming agent is a silicone defoaming agent. In some preferred embodiments of the present invention, the defoaming agent is at least one of digao 901W, common DF-1901, and deep bamboo chemical SN-6724.
Preferably, in the low-temperature water-based acrylic primer, the flash rust inhibitor is at least one selected from a nitrite salt and an organic flash rust inhibitor. In some preferred embodiments of the present invention, the anti-flash rust agent is at least one of sodium nitrite, Ribao 60, and Simpson CA 50.
In the low-temperature resistant water-based acrylic primer, the corrosion inhibitor can be a commercially available ready-to-use liquid rust inhibitor. In some preferred embodiments of the invention, the corrosion inhibitor is ASCONIUM-143 from Ascado.
Preferably, in the low-temperature resistant water-based acrylic primer, the substrate wetting agent is a silicone-based substrate wetting agent. In some preferred embodiments of the present invention, the substrate wetting agent is at least one selected from SN-4741 of deep bamboo chemical, F-40 of core chemical, and Digao 4100.
Preferably, in the low-temperature resistant water-based acrylic primer, the thickener is an alkali swelling thickener. In some preferred embodiments of the present invention, the thickener is L344 of a new material.
In the low-temperature resistant water-based acrylic primer, common industrial ammonia water, namely, the ammonia-containing concentration is 25-28% can be selected as the ammonia water.
The invention also provides a preparation method of the low-temperature-resistant water-based acrylic primer.
The preparation method of the low-temperature water-based acrylic primer comprises the following steps:
1) grinding: mixing the grindable acrylic resin, the antifreezing agent, the ammonia water, the dispersing agent, the defoaming agent, the anti-flash rust agent and the water, then adding the powder, mixing and grinding to obtain slurry;
2) size mixing: and mixing the slurry, the corrosion inhibitor, the acrylic resin with the lowest film forming temperature of less than or equal to 26 ℃, the film forming additive, the freeze-thaw stabilizer, the substrate wetting agent and the thickening agent to obtain the low-temperature-resistant water-based acrylic primer.
Preferably, in step 1) of the preparation method of the low-temperature water-based acrylic primer, grinding is carried out until the fineness of the slurry is less than or equal to 40 mu m.
The invention also provides application of the low-temperature-resistant water-based acrylic primer, in particular application of the low-temperature-resistant water-based acrylic primer in corrosion prevention of steel materials.
Further, when the low-temperature resistant water-based acrylic primer is applied to corrosion prevention of steel materials, the low-temperature resistant water-based acrylic primer is sprayed on the surface of the steel materials to perform corrosion prevention treatment.
The invention has the beneficial effects that:
the water-based acrylic primer provided by the invention has the characteristics of high solid content, low temperature resistance and low-temperature film formation, and is suitable for corrosion prevention of steel materials in a low-temperature environment.
Specifically, compared with the prior art, the invention has the following advantages:
1. the mass solid content of the acrylic primer is improved to 70% or more through grinding of the grindable acrylic resin, while the mass solid content of the common acrylic primer is generally lower than 60%, and the characteristic of high solid content can shorten the drying time at low temperature, wherein the surface drying time is less than or equal to 12h under the environment with good ventilation at minus 10 ℃, and the surface drying time of the primer with the solid content of 50% is more than or equal to 24 h.
2. The acrylic resin with the lowest film forming temperature less than or equal to 26 ℃ is selected, so that the acrylic primer can be dried to form a film at the temperature of minus 10 ℃, is dried for 24 hours at the temperature of minus 10 ℃, is maintained for 48 hours at the temperature of 5-10 ℃, and has good paint film adhesion.
3. The polyol type antifreezing agent with good antifreezing property is selected, so that the liquid paint of the acrylic primer is still in a flowing state without freezing after being placed for 24 hours in an environment with the temperature of-10 ℃, and the freeze-thaw resistance stability is good.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The starting materials, reagents or apparatus used in the examples and comparative examples were obtained from conventional commercial sources unless otherwise specified. Unless otherwise indicated, the testing or testing methods are conventional in the art.
The unit of the amount "part" mentioned in the following examples and comparative examples means "part by mass" unless otherwise specified.
Example 1
The preparation method of the low-temperature resistant water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 4.5 parts of deionized water, 6 parts of A515 acrylic resin, 10 parts of antifreezing agent, 0.2 part of ammonia water, 0.3 part of dispersing agent, 0.5 part of defoaming agent and 0.5 part of anti-flash rust agent are added into a dispersion tank, after uniform mixing, 2 parts of coloring pigment, 2 parts of anti-rust pigment and 34 parts of filler (the total amount of powder is 38 parts) are added, after uniform mixing, grinding is carried out until the fineness is less than or equal to 40 mu m, and the slurry is obtained.
And (3) paint mixing stage: adding 2 parts of corrosion inhibitor, 28 parts of KG12 acrylic resin, 2.8 parts of film-forming additive, 0.2 part of freeze-thaw stabilizer, 0.3 part of base material wetting agent and 0.05 part of thickener into the slurry, and uniformly mixing to obtain the water-based acrylic primer.
Wherein, the A515 acrylic resin is from Dismann and KG12 acrylic resin is from Landburg; the antifreezing agent is V200 of Weining New Material company; the dispersant is 731A from Dow company; the defoaming agent is digao 901W of winning companies; the flash rust inhibitor is sodium nitrite; the coloring pigment is titanium dioxide and iron oxide black; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; the base material wetting agent is SN-4741 of deep bamboo chemical industry; the thickener is L344 of a new material of deep philosophy.
Example 2
The preparation method of the low-temperature resistant water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 4.8 parts of deionized water, 5 parts of A515 acrylic resin, 11 parts of antifreezing agent, 0.4 part of ammonia water, 0.4 part of dispersing agent, 0.7 part of defoaming agent and 0.8 part of flash rust inhibitor are added into a dispersion tank, after uniform mixing, 2.5 parts of coloring pigment, 2.5 parts of antirust pigment and 32 parts of filler (the total amount of powder is 37 parts), after uniform mixing, grinding to the fineness of less than or equal to 40 mu m to obtain the slurry.
And (3) paint mixing stage: 1.5 parts of corrosion inhibitor, 29 parts of 0613 acrylic resin, 2.9 parts of film-forming additive, 0.3 part of freeze-thaw stabilizer, 0.4 part of base material wetting agent and 0.07 part of thickener are added into the slurry and uniformly mixed to obtain the water-based acrylic primer.
Wherein, the A515 acrylic resin is from Dismann company, and the 0613 acrylic resin is from Wanhua company; the antifreezing agent is V200 of Weining New Material company; the dispersant is SN-1798 of deep bamboo chemical industry; the defoaming agent is DF-1901 which is commonly used; the anti-flash rust agent is Ruibao 60; the coloring pigment is titanium dioxide, iron oxide yellow and iron oxide red; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; f-40 with the substrate wetting agent as a core chemistry; the thickener is L344 of a new material of deep philosophy.
Example 3
The preparation method of the low-temperature resistant water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 5 parts of deionized water, 4 parts of A515 acrylic resin, 12 parts of antifreeze, 0.5 part of ammonia water, 0.5 part of dispersant, 1 part of defoamer and 1 part of flash rust inhibitor are added into a dispersion tank, after uniform mixing, 3 parts of coloring pigment, 3 parts of rust-proof pigment and 30 parts of filler (the total amount of powder is 36 parts) are added, after uniform mixing, grinding is carried out until the fineness is less than or equal to 40 mu m, and the slurry is obtained.
And (3) paint mixing stage: adding 1 part of corrosion inhibitor, 30 parts of 0620 acrylic resin, 3 parts of film-forming additive, 0.4 part of freeze-thaw stabilizer, 0.5 part of base material wetting agent and 0.1 part of thickener into the slurry, and uniformly mixing to obtain the water-based acrylic primer.
Wherein, the A515 acrylic resin is from Dismann company, 0620 acrylic resin is from Wanhua company; the antifreezing agent is V200 of Weining New Material company; the dispersant is BYK-190; the defoaming agent is SN-6724 of deep bamboo chemical industry; the flash rust inhibitor is Simpson CA 50; the coloring pigment is black iron oxide or red iron oxide; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; the base material wetting agent is Yingchuang Digao 4100; the thickener is L344 of a new material of deep philosophy.
Comparative example 1
The A515-based acrylic resin can be ground, and this example was tested with further increased solids.
The preparation method of the water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 5 parts of deionized water, 7 parts of A515 acrylic resin, 12 parts of antifreeze, 0.5 part of ammonia water, 0.5 part of dispersant, 1 part of defoamer and 1 part of flash rust inhibitor are added into a dispersion tank, after uniform mixing, 4.5 parts of coloring pigment, 4.5 parts of antirust pigment and 30 parts of filler (the total amount of powder is 39 parts) are added, and after uniform mixing, grinding is carried out until the fineness is less than or equal to 40 mu m, thus obtaining the slurry.
And (3) paint mixing stage: adding 1 part of corrosion inhibitor, 28 parts of KG12 acrylic resin, 2.8 parts of film-forming additive, 0.4 part of freeze-thaw stabilizer, 0.5 part of base material wetting agent and 0.07 part of thickener into the slurry, and uniformly mixing to obtain the water-based acrylic primer.
Wherein, the A515 acrylic resin is from Dismann and KG12 acrylic resin is from Landburg; the antifreezing agent is V200 of Weining New Material company; the dispersant is Dow 731A; the defoaming agent is SN-6724 of deep bamboo chemical industry; the anti-flash rust agent is Ruibao 60; the coloring pigment is titanium dioxide and iron oxide red; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; the base material wetting agent is Yingchuang Digao 270; the thickener is L344 of a new material of deep philosophy.
Comparative example 2
This example shows that the amounts of antifreeze and film-forming aid are reduced.
The preparation method of the water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 4.5 parts of deionized water, 5 parts of A515 acrylic resin, 8 parts of antifreezing agent, 0.4 part of ammonia water, 0.5 part of dispersing agent, 0.8 part of defoaming agent and 0.7 part of anti-flash rust agent are added into a dispersion tank, after uniform mixing, 2 parts of coloring pigment, 2 parts of anti-rust pigment and 32 parts of filler (the total amount of powder is 36 parts), after uniform mixing, grinding to the fineness of less than or equal to 40 mu m to obtain the slurry.
And (3) paint mixing stage: adding 15 parts of corrosion inhibitor, 30 parts of KG12 acrylic resin, 2 parts of film-forming assistant, 0.3 part of freeze-thaw stability, 0.4 part of base material wetting agent and 0.08 part of thickening agent into the slurry, and uniformly mixing to obtain the water-based acrylic primer.
Wherein, the A515 acrylic resin is from Dismann and KG12 acrylic resin is from Landburg; the antifreezing agent is V200 of Weining New Material company; the dispersant is SN-1798 of deep bamboo chemical industry; the antifoaming agent is DF-1907 commonly used; the flash rust inhibitor is sodium nitrite; the coloring pigment is titanium dioxide and iron oxide black; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; the substrate wetting agent is core chemistry F-40; the thickener is L344 of a new material of deep philosophy.
Comparative example 3
This example was tested with Wanhua 0612 resin having a minimum film-forming temperature of 37 ℃.
The preparation method of the water-based acrylic primer comprises the following steps:
and (3) a pulping stage: 5.5 parts of deionized water, 5 parts of A515 acrylic resin, 10 parts of antifreezing agent, 0.3 part of ammonia water, 0.4 part of dispersing agent, 0.6 part of defoaming agent and 0.8 part of anti-flash rust agent are added into a dispersion tank, 1 part of coloring pigment, 1 part of anti-rust pigment and 34 parts of filler (the total amount of powder is 36 parts) are added after uniform mixing, and the mixture is ground to the fineness of less than or equal to 40 mu m to obtain the slurry.
And (3) paint mixing stage: adding 12 parts of corrosion inhibitor, 30 parts of Wanhua 0612 acrylic resin, 3 parts of film-forming additive, 0.5 part of freeze-thaw stabilizer, 0.4 part of base material wetting agent and 0.06 part of thickener into the slurry, and uniformly mixing to obtain the water-based acrylic primer.
Wherein the A515 acrylic resin used is from Dismann; the antifreezing agent is V200 of Weining New Material company; the dispersant is BYK-190; the defoaming agent is Yingchuang Digao 901W; the flash rust inhibitor is Simpson CA 50; the coloring pigment is iron oxide yellow or iron oxide black; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate, and the mixing mass ratio is 1: 1; the filler is a mixture of barium sulfate, talcum powder and heavy calcium carbonate powder, and the mixing mass ratio is 1:1: 1; the corrosion inhibitor is ASCONIUM-143; the film-forming additive is alcohol ester twelve; the freeze-thaw stabilizer is ethyllan BCD42A of Acksonobel; the base material wetting agent is deep bamboo chemical SN-4741; the thickener is L344 of a new material of deep philosophy.
The water-based acrylic primers prepared in examples 1 to 3 and comparative examples 1 to 3 were subjected to test analysis, and specific test results are shown in table 1.
The test methods or cited standards for some of the test items in table 1 are described below:
solid content: GB-T1725-2007.
Adhesion force: GB/T9285-1998.
Freeze-thaw stability: GB/T9268-.
Film formation at low temperature (-10 ℃): a150 μm wet film was drawn on a glass plate using a four-side preparation apparatus, and then placed in a-10 ℃ refrigerator, and the drying time and film formation of the paint film were observed. The film can be formed when the paint film is good without cracks.
Storage at low temperature (-10 ℃): a certain amount of paint is filled into a 250mL plastic tank, the plastic tank is placed in a refrigerator at the temperature of minus 10 ℃ for 48 hours, and then the plastic tank is taken out to observe whether the plastic tank is frozen or not and whether the emulsion breaking is performed or not.
Table 1 aqueous acrylic primer test results
The test results in table 1 show that: 1) as can be seen from comparative example 1, increasing the content of a515 resin does improve the mass solid content, but does not greatly improve the drying speed, while reducing the adhesion of the primer because the a515 resin does not establish adhesion on the metal substrate. 2) As can be seen from the comparative example 2, the liquid paint cannot resist freezing at-10 ℃ due to less addition of the anti-freezing agent, the freeze-thaw stability of the liquid paint is poor, and partial water in the liquid paint freezes; meanwhile, the addition of the film-forming assistant is less, so that the primer cannot form a film at the temperature of-10 ℃. 3) As can be seen from comparative example 3, the acrylic resin had a minimum film-forming temperature of more than 26 ℃ and also had a problem that film formation could not be achieved at-10 ℃.
In summary, the water-based acrylic primer of the present invention has the following advantages: 1. high solid content: the mass solid content reaches 70 percent and above; 2. low temperature resistance: the liquid paint can not be frozen in the environment of minus 10 ℃, and the liquid paint is still in a flowing state; 3. film forming at low temperature: can be naturally dried to form a film at the temperature of minus 10 ℃.
The water-based acrylic primer disclosed by the invention is very suitable for anticorrosive treatment of steel materials in a low-temperature environment, and only primer spraying construction is carried out on the surface of the steel materials during the treatment. When the environment temperature is-10 ℃ to 0 ℃, the primer still has good fluidity, the primer with the wet film thickness of 100 mu m is sprayed on a steel material member without air, then the surface drying time is less than or equal to 12h under the condition of good ventilation, and if the conventional primer is used, the risks of freezing, cracking, incapability of forming a film, poor adhesion and the like exist.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. A low-temperature-resistant water-based acrylic primer is characterized in that: the paint comprises the following components in parts by mass: 4-6 parts of a grindable acrylic resin, 10-12 parts of an antifreezing agent, 0.2-0.5 part of ammonia water, 0.3-0.5 part of a dispersing agent, 0.5-1 part of a defoaming agent, 0.5-1 part of a flash rust inhibitor, 4.5-5.5 parts of water, 36-38 parts of a powder material, 1-2 parts of a corrosion inhibitor, 28-30 parts of an acrylic resin with the lowest film forming temperature of less than or equal to 26 ℃, 2.8-3 parts of a film forming additive, 0.2-0.4 part of a freeze-thaw stabilizer, 0.3-0.5 part of a base material wetting agent and 0.05-0.1 part of a thickening agent; the powder comprises a coloring pigment, an anti-rust pigment and a filler;
the grindable acrylic resin is Dismann A515 resin;
the acrylic resin with the lowest film-forming temperature less than or equal to 26 ℃ is selected from at least one of KG12 resin, Wanhua 0613 resin and Wanhua 0620 resin of the Landburg;
the antifreezing agent is a polyhydric alcohol type antifreezing agent.
2. The low temperature resistant waterborne acrylic primer of claim 1, wherein: in the powder material, the coloring pigment is at least one selected from titanium dioxide, carbon black, iron oxide yellow, iron oxide red, phthalocyanine blue and phthalocyanine green; the antirust pigment is a mixture of strontium chrome yellow and zinc phosphate; the filler is a mixture of barium sulfate, talcum powder and heavy calcium powder.
3. The low temperature resistant waterborne acrylic primer of claim 1, wherein: the film-forming assistant is an alcohol ester film-forming assistant.
4. The low temperature resistant waterborne acrylic primer of claim 1, wherein: the freeze-thaw stabilizer is at least one selected from fatty alcohol polyoxyethylene ether and synthetic alcohol polyoxyethylene ether.
5. A preparation method of the low-temperature-resistant water-based acrylic primer according to any one of claims 1 to 4 is characterized in that: the method comprises the following steps:
1) grinding: mixing the grindable acrylic resin, the antifreezing agent, the ammonia water, the dispersing agent, the defoaming agent, the anti-flash rust agent and the water, then adding the powder, mixing and grinding to obtain slurry;
2) size mixing: and mixing the slurry, the corrosion inhibitor, the acrylic resin with the lowest film forming temperature of less than or equal to 26 ℃, the film forming additive, the freeze-thaw stabilizer, the substrate wetting agent and the thickening agent to obtain the low-temperature-resistant water-based acrylic primer.
6. The method of claim 5, wherein: in the step 1), grinding is carried out until the fineness of the slurry is less than or equal to 40 mu m.
7. The use of the low temperature resistant water-based acrylic primer according to any one of claims 1 to 4 for corrosion protection of steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259610.2A CN111073412B (en) | 2019-12-10 | 2019-12-10 | Low-temperature-resistant water-based acrylic primer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259610.2A CN111073412B (en) | 2019-12-10 | 2019-12-10 | Low-temperature-resistant water-based acrylic primer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111073412A CN111073412A (en) | 2020-04-28 |
| CN111073412B true CN111073412B (en) | 2021-08-17 |
Family
ID=70313649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911259610.2A Active CN111073412B (en) | 2019-12-10 | 2019-12-10 | Low-temperature-resistant water-based acrylic primer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111073412B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114456651B (en) * | 2022-03-07 | 2023-06-13 | 广州集泰化工股份有限公司 | Water-based acrylic waterproof paint and preparation method thereof |
| CN114921143A (en) * | 2022-06-09 | 2022-08-19 | 广东天朗化工实业有限公司 | Water-based antirust primer-topcoat paint and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356795A (en) * | 2014-10-10 | 2015-02-18 | 广州擎天材料科技有限公司 | Single component air-drying water-based rust inhibiting primer with curtaining capacity and used for electrical equipment housing as well as preparation method of primer |
| CN105885572A (en) * | 2014-09-30 | 2016-08-24 | 王高君 | Water-based additive-free nano composite environmental interior wall paint |
| CN106811040A (en) * | 2015-11-27 | 2017-06-09 | 杨卫兵 | Aqueous heavy antisepsis one-component primers and its preparation method and application |
| CN110358391A (en) * | 2019-07-11 | 2019-10-22 | 广州集泰化工股份有限公司 | A kind of quick-dry type water soluble acrylic acid container case mark paint and preparation method thereof |
| CN110423525A (en) * | 2019-07-11 | 2019-11-08 | 广州集泰化工股份有限公司 | A kind of container water soluble acrylic acid inner face mending paint and preparation method thereof |
-
2019
- 2019-12-10 CN CN201911259610.2A patent/CN111073412B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885572A (en) * | 2014-09-30 | 2016-08-24 | 王高君 | Water-based additive-free nano composite environmental interior wall paint |
| CN104356795A (en) * | 2014-10-10 | 2015-02-18 | 广州擎天材料科技有限公司 | Single component air-drying water-based rust inhibiting primer with curtaining capacity and used for electrical equipment housing as well as preparation method of primer |
| CN106811040A (en) * | 2015-11-27 | 2017-06-09 | 杨卫兵 | Aqueous heavy antisepsis one-component primers and its preparation method and application |
| CN110358391A (en) * | 2019-07-11 | 2019-10-22 | 广州集泰化工股份有限公司 | A kind of quick-dry type water soluble acrylic acid container case mark paint and preparation method thereof |
| CN110423525A (en) * | 2019-07-11 | 2019-11-08 | 广州集泰化工股份有限公司 | A kind of container water soluble acrylic acid inner face mending paint and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111073412A (en) | 2020-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106221458B (en) | Special anticorrosive water paint for steel structure and preparation method thereof | |
| CN111073412B (en) | Low-temperature-resistant water-based acrylic primer and preparation method thereof | |
| CN109054519A (en) | A kind of water soluble acrylic acid anticorrosive paint and preparation method thereof containing pitch | |
| CN105925178B (en) | A kind of aqueous organic inorganic hybridization anticorrosive paint composition and preparation method | |
| CN111040582A (en) | Graphene anticorrosive paint special for transformer shell and preparation method thereof | |
| CN115368805B (en) | Water-based double-component matched paint and preparation method and application thereof | |
| CN110938350A (en) | Epoxy primer for rail transit and preparation method thereof | |
| CN108997919B (en) | Waterborne polyurethane coating for concrete protection in cold regions and preparation method thereof | |
| CN110272672A (en) | A kind of aqueous one-component machinery self-drying paint and preparation method thereof | |
| WO2024001004A1 (en) | Waterborne dipping coating for measuring tape and preparation method therefor | |
| CN114806305A (en) | Water-based metal anticorrosive paint and preparation method thereof | |
| CN111154369A (en) | Single-component water-based acrylic primer-topcoat paint and preparation method thereof | |
| CN107286756B (en) | A kind of low temperature resistant corrosion-resistant epoxy paint and preparation method and application | |
| CN108250901B (en) | High-performance water-based rust conversion paint resin and water-based rust conversion paint | |
| CN114032004A (en) | Water-based epoxy coating and preparation method thereof | |
| CN108384364A (en) | Double-component water paint and preparation method thereof | |
| CN111560182A (en) | Exterior wall putty | |
| CN115651467A (en) | Water-based acrylic acid anticorrosive primer for steel structure and preparation method thereof | |
| CN110791163A (en) | Steel structure water-based anticorrosive paint and preparation method thereof | |
| KR100381719B1 (en) | Water-soluble anticorrosive paint composition | |
| CN113416467A (en) | Epoxy ester antirust water paint and preparation method thereof | |
| CN114854258A (en) | High-hardness impact-resistant water-based metal matte baking paint for computer case and preparation method thereof | |
| CN114456652A (en) | Water-based anticorrosive paint and preparation method and application thereof | |
| CN112898880A (en) | Bi-component epoxy water-based container anticorrosive paint | |
| WO2022088130A1 (en) | Anticorrosive water-based paint, and preparation method therefor and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |