CN111253844A - High-coating-rate thick-film water-based roller-coating alkyd paint and preparation method thereof - Google Patents
High-coating-rate thick-film water-based roller-coating alkyd paint and preparation method thereof Download PDFInfo
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- CN111253844A CN111253844A CN202010089090.1A CN202010089090A CN111253844A CN 111253844 A CN111253844 A CN 111253844A CN 202010089090 A CN202010089090 A CN 202010089090A CN 111253844 A CN111253844 A CN 111253844A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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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
- C09D7/20—Diluents or solvents
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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
- C09D7/47—Levelling 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention provides a high-coating-rate thick-film water-based roller-coating alkyd paint and a preparation method thereof, and the alkyd paint mainly comprises the following components in parts by weight: 20-30 parts of water-based resin, 1-2 parts of an auxiliary agent A, 2-5 parts of an auxiliary agent B, 0.5-1 part of a neutralizing agent, 20-40 parts of pigment, filler, 10-30 parts of distilled water, 0-2 parts of a thickening agent and 0-3 parts of a solvent. The roller coating alkyd paint has the advantages that the components are adjusted, the weight parts of the raw materials are adjusted, the performance of a high-volume solid filler is exerted to the maximum extent, and the thickness of a paint film after coating is improved, so that the salt spray resistance and the water resistance of the paint are improved. When the roller painting alkyd paint is used for coating equipment, the advantages of good salt spray resistance and water resistance are achieved.
Description
Technical Field
The invention relates to the field of water-based industrial roller coating paint, in particular to high-coating-rate thick-film water-based roller coating alkyd paint and a preparation method thereof.
Background
The water-based paint is the mainstream direction for the development of the paint industry, and the low content of toluene and xylene ensures that the water-based paint has the advantages of small release amount, safety and environmental protection, and is popular with the majority of users.
The construction modes of the coating are many, mainly including spraying, roller coating, dip coating, curtain coating and the like, wherein the roller coating has the advantage of simple construction and is most widely used, particularly, the roller coating has the advantage in the painting process of large-scale equipment, such as the fields of equipment such as hoisting cranes, gantry cranes and the like, and the roller coating construction is most convenient and fast; since the occurrence of adverse effects has an important relationship with the composition of the coating material, it is important to provide a coating material having a low coating rate and a low film thickness without the occurrence of an external force.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the high-coating-rate thick-film water-based roller-coating alkyd paint and the preparation method thereof. When the roller painting alkyd paint is used for coating equipment, the advantages of good salt spray resistance and water resistance are achieved.
The technical scheme of the invention is as follows:
a high-coating-rate thick-film water-based roller-coating alkyd paint mainly comprises the following components in parts by weight:
preferably, the water-based resin is water-based alkyd resin, and the resin has the characteristics of good leveling property, high drying speed, water resistance, excellent salt mist resistance and the like.
Preferably, the auxiliary agent A is a water-based organic silicon defoamer TEGO-810.
Preferably, the auxiliary agent B consists of a leveling agent BYK-333 and a base material wetting agent TEGO-4100, wherein the weight ratio of the leveling agent BYK-333 to the base material wetting agent TEGO-4100 is 3: 2.
Preferably, the neutralizing agent is N, N-dimethylethanolamine, and the neutralizing agent has small smell and mild neutralizing effect.
Preferably, the pigment is carbon black, titanium white, medium chrome yellow, phthalocyanine blue and the like and fillers such as barium sulfate, calcium carbonate, mica and kaolin.
Preferably, the thickener consists of OMG-0434 and Haimines 299, and the weight ratio of OMG-0434 to Haimines 299 is 5: 1.
Preferably, the solvent is a mixed solvent comprising ethylene glycol butyl ether and dipropylene glycol butyl ether, and the drying speed can be better controlled by matching the high-boiling point solvent with the low-boiling point solvent.
The method is characterized in that when the coating is originally selected, a filler with high volume solid content is selected as a main material for improving the film thickness, but the raw material for increasing the solid content is easily influenced on the leveling property of the coating, the application environment and the construction method of the coating are comprehensively considered, the composition of the coating is designed, the excellent leveling property of the coating with high solid content is realized through the specific selection of conventional additives and solvents, the film thickness reaches 60-70 mu m, and the coating rate reaches 4.5m2When per Kg, the uniformity of the paint film of the paint after coating is high, thereby improving the salt spray resistance and the water resistance of the paint after coating.
The preparation method of the high-coating-rate thick film water-based roller-coating alkyd paint comprises the following steps:
(1) putting the resin into a grinding tank according to the formula quality, adding a neutralizing agent, dispersing at 800r/min, and then carrying out drying emulsification;
(2) after emulsification is finished, sequentially adding the auxiliary agent A and the solvent, mixing, and finally adding the pigment and filler for grinding at the grinding speed of 2800r/min and the temperature of less than 35 ℃;
(3) filtering grinding beads after grinding is finished, and entering a paint mixing stage; adding the assistant B and the thickening agent in turn under the dispersion state of 800r/min to prepare the product of the invention.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through reasonable raw material selection and formula design, the leveling property is improved, the coating rate under the condition of a thick film is effectively improved, under the condition of the same film thickness, the coating rate of the invention can be improved by nearly 30% compared with a competitive product, and the coating rate of the invention is 4.5m2Per Kg, coating rate of commercially available competitive products 3.5m2/Kg。
2. The water resistance and salt spray resistance detection of the coating obtained by the method shows that the coating provided by the invention is resistant to water for more than 7 days, and the salt spray resistance is up to 240 hours.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a graph showing the effect of the roll coating in example 1.
FIG. 2 is a graph showing the effect of the roll coating in comparative example 1.
FIG. 3 is a graph showing the effect of the roll coating in comparative example 2.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-coating-rate thick-film water-based roller-coating alkyd paint mainly comprises the following components in parts by weight:
the auxiliary agent B consists of a flatting agent BYK-333 and a base material wetting agent TEGO-4100, wherein the weight ratio of the flatting agent BYK-333 to the base material wetting agent TEGO-4100 is 3: 2; the thickening agent consists of OMG-0434 and Haimines 299, and the weight ratio of the OMG-0434 to the Haimines 299 is 5: 1; the solvent is a mixed solvent and comprises ethylene glycol butyl ether and dipropylene glycol butyl ether in a weight ratio of 1:1.4, and the drying speed can be better controlled by matching the high-boiling point solvent with the low-boiling point solvent.
The preparation method of the high-coating-rate thick film water-based roller-coating alkyd paint comprises the following steps:
(1) putting the resin into a grinding tank according to the formula quality, adding a neutralizing agent, dispersing at 800r/min, and then carrying out drying emulsification;
(2) after emulsification is finished, sequentially adding the auxiliary agent A and the solvent, mixing, and finally adding the pigment and filler for grinding at the grinding speed of 2800r/min and the temperature of less than 35 ℃;
(3) filtering grinding beads after grinding is finished, and entering a paint mixing stage; adding the assistant B and the thickening agent in turn under the dispersion state of 800r/min to prepare the product of the invention.
Example 2
A high-coating-rate thick-film water-based roller-coating alkyd paint mainly comprises the following components in parts by weight:
the auxiliary agent B consists of a flatting agent BYK-333 and a base material wetting agent TEGO-4100, wherein the weight ratio of the flatting agent BYK-333 to the base material wetting agent TEGO-4100 is 3: 2; the thickening agent consists of OMG-0434 and Haimines 299, and the weight ratio of the OMG-0434 to the Haimines 299 is 5: 1; the solvent is a mixed solvent and comprises ethylene glycol butyl ether and dipropylene glycol butyl ether in a weight ratio of 1:1.4, and the drying speed can be better controlled by matching the high-boiling point solvent with the low-boiling point solvent.
The preparation of the coating was carried out as in example 1.
Example 3
A high-coating-rate thick-film water-based roller-coating alkyd paint mainly comprises the following components in parts by weight:
the auxiliary agent B consists of a flatting agent BYK-333 and a base material wetting agent TEGO-4100, wherein the weight ratio of the flatting agent BYK-333 to the base material wetting agent TEGO-4100 is 3: 2; the thickening agent consists of OMG-0434 and Haimines 299, and the weight ratio of the OMG-0434 to the Haimines 299 is 5: 1; the solvent is a mixed solvent and comprises ethylene glycol butyl ether and dipropylene glycol butyl ether in a weight ratio of 1:1.4, and the drying speed can be better controlled by matching the high-boiling point solvent with the low-boiling point solvent.
The preparation of the coating was carried out as in example 1.
Comparative example 1
Constructing a commercially available coating (a product of the Industrial and trade group, Inc. of Hebei morning and Yang, special roller coating paint) in a roller coating manner, wherein the thickness of the coating is hard to be continuously thickened after reaching 42 mu m, which is shown in figure 2; under the same conditions, using the coating material provided in example 1, the film thickness reached 68 μm, see FIG. 1; the coating material of example 2 was used, and the film thickness was 65 μm; the coating material of example 3 was used to give a film thickness of 63 μm.
Comparative example 2
The difference from the example 1 is that the TEGO-810 serving as a water-based organic silicon defoaming agent is divided into 3 parts, the weight ratio of a leveling agent BYK-333 to a base material wetting agent TEGO-4100 in the auxiliary agent B is 1:2, and the coating obtained by the comparative example is rolled under the same conditions as the comparative example, the film thickness reaches 63 mu m, however, the orange peel is obvious, and the flow leveling is poor as can be seen from FIG. 3.
Comparative example 3
The difference from example 1 is that the following preparation method was used to prepare the coating:
(1) putting resin into a grinding tank according to the formula quality, adding a neutralizing agent, dispersing at 500r/min, then sequentially adding an auxiliary agent A and a solvent, mixing, and finally adding pigment and filler for grinding at a grinding speed of 3000r/min at a temperature of less than 35 ℃;
(2) filtering grinding beads after grinding is finished, and entering a paint mixing stage; adding the assistant B and the thickening agent in turn under the dispersion state of 600r/min to prepare the product of the invention.
The coatings prepared in examples 1 to 3 and comparative examples 1 to 3 were applied to a roll to prepare a plate, the substrate was a 7mm x 15mm carbon steel plate, 6 pieces of each sample were prepared, the thickness was 60 to 70 μm, the test was carried out 7 days after air-drying and curing, and the test results were averaged.
The test results are given in the following table:
TABLE 1 Performance test results for the coatings
| Item | Water resistance | Salt fog resistance |
| Example 1 | ＞7d | 240h |
| Example 2 | ＞7d | 242h |
| Example 3 | ＞7d | 238h |
| Comparative example 1 | 5d | 144h |
| Comparative example 2 | 3d | 94h |
| Comparative example 3 | 6d | 167h |
When the roller coating effect of the paint in the example 1 is analyzed as that of the paint in the comparative example 2, the types and the contents of the solid raw materials of the paints in the example 1 and the comparative example 2 are the same, but the proportions of the additive A and the additive B are different, and the result shows that the thickness difference of the paint layers obtained in the comparative example 2 and the example 1 is not obvious, but the difference of the self-drying active paint surfaces is obvious, the paint surface of the comparative example 2 is obvious orange peel, which shows that the leveling property of the paint is poor, and the water resistance and the salt fog resistance of the paint in the comparative example 2 are both inferior to that of the paint in the application by combining the table 1;
as can be seen from the comparison of the roll coating effects of the examples 1-3 and the comparative example 1 (commercial coating), the film thickness of the paint is obvious and can reach 60-70 mu m, and the coating rate reaches 4.5m2The coating has the advantages that the coating has outstanding effects, and the water resistance and the salt spray resistance of the coating are improved.
The comparison between example 1 and comparative example 3 shows that the parameters of the treatment process still have influence on the performance of the coating during the preparation of the coating, and the parameters have obvious influence on the water resistance and the salt fog resistance of the paint film after roll coating.
Although the present invention has been described in detail by referring to the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The high-coating-rate thick-film water-based roller-coating alkyd paint is characterized by mainly comprising the following components in parts by weight:
2. the high coatrate thick film aqueous roll-coating alkyd coating of claim 1, wherein said aqueous resin is an aqueous alkyd resin.
3. The high coatrate thick film aqueous roll-coating alkyd coating of claim 2, wherein adjuvant a is an aqueous silicone defoamer TEGO-810.
4. The high application rate thick film aqueous roll coating alkyd coating of claim 3, wherein the assistant B consists of a leveling agent BYK-333 and a substrate wetting agent TEGO-4100, wherein the weight ratio of the leveling agent BYK-333 to the substrate wetting agent TEGO-4100 is 3: 2.
5. The high coatrate thick film waterborne roller coating alkyd coating of claim 4, wherein said neutralizing agent is N, N-dimethylethanolamine.
6. The high coverage thick film waterborne roller coating alkyd coating of claim 5, wherein said pigment is carbon black, titanium white, medium chrome yellow, phthalocyanine blue, etc. and fillers barium sulfate, calcium carbonate, mica, kaolin.
7. The high coverage thick film aqueous roll coating alkyd coating of claim 6, wherein said thickener consists of OMG-0434 and hamming 299, and the weight ratio of OMG-0434 to hamming 299 is 5: 1.
8. The high coatrate thick film waterborne roller coating alkyd coating of any of claims 1-7, wherein said solvent is a mixed solvent comprising ethylene glycol butyl ether and dipropylene glycol butyl ether.
9. The method of preparing the high coatability thick film waterborne roller coating alkyd coating of claim 8, comprising the steps of:
(1) putting the resin into a grinding tank according to the formula quality, adding a neutralizing agent, dispersing at 800r/min, and then carrying out drying emulsification;
(2) after emulsification is finished, sequentially adding the auxiliary agent A and the solvent, mixing, and finally adding the pigment and filler for grinding at the grinding speed of 2800r/min and the temperature of less than 35 ℃;
(3) filtering grinding beads after grinding is finished, and entering a paint mixing stage; adding the assistant B and the thickening agent in turn under the dispersion state of 800r/min to prepare the product of the invention.
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| CN202010089090.1A CN111253844A (en) | 2020-02-12 | 2020-02-12 | High-coating-rate thick-film water-based roller-coating alkyd paint and preparation method thereof |
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| CN202010089090.1A CN111253844A (en) | 2020-02-12 | 2020-02-12 | High-coating-rate thick-film water-based roller-coating alkyd paint and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831234A (en) * | 2010-05-25 | 2010-09-15 | 北京化工大学 | Method for preparing aqueous acrylic acid modified alkyd resin coating |
| CN106675355A (en) * | 2016-12-07 | 2017-05-17 | 陕西宝塔山油漆股份有限公司 | Water-based alkyd coating and preparation method thereof |
| CN109207034A (en) * | 2018-07-10 | 2019-01-15 | 河北晨阳工贸集团有限公司 | A kind of aqueous rusty anti-corrosion primer and preparation method thereof |
| CN109575765A (en) * | 2018-10-29 | 2019-04-05 | 广州集泰化工股份有限公司 | A kind of waterborne anti-corrosive primer and preparation method thereof for roller coating mechanical equipment |
| CN110295001A (en) * | 2018-03-23 | 2019-10-01 | 河南中垣新材料科技有限公司 | A kind of aqueous crane protective primer and preparation method thereof |
-
2020
- 2020-02-12 CN CN202010089090.1A patent/CN111253844A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831234A (en) * | 2010-05-25 | 2010-09-15 | 北京化工大学 | Method for preparing aqueous acrylic acid modified alkyd resin coating |
| CN106675355A (en) * | 2016-12-07 | 2017-05-17 | 陕西宝塔山油漆股份有限公司 | Water-based alkyd coating and preparation method thereof |
| CN110295001A (en) * | 2018-03-23 | 2019-10-01 | 河南中垣新材料科技有限公司 | A kind of aqueous crane protective primer and preparation method thereof |
| CN109207034A (en) * | 2018-07-10 | 2019-01-15 | 河北晨阳工贸集团有限公司 | A kind of aqueous rusty anti-corrosion primer and preparation method thereof |
| CN109575765A (en) * | 2018-10-29 | 2019-04-05 | 广州集泰化工股份有限公司 | A kind of waterborne anti-corrosive primer and preparation method thereof for roller coating mechanical equipment |
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