CN110183887B - Antirust pigment for water-based paint and preparation method thereof - Google Patents
Antirust pigment for water-based paint and preparation method thereof Download PDFInfo
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- CN110183887B CN110183887B CN201910456848.8A CN201910456848A CN110183887B CN 110183887 B CN110183887 B CN 110183887B CN 201910456848 A CN201910456848 A CN 201910456848A CN 110183887 B CN110183887 B CN 110183887B
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- 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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
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Abstract
The invention discloses an antirust pigment for a water-based paint, which is prepared from the following raw materials in parts by weight: 80-120 parts of phosphoric acid, 70-110 parts of zinc oxide, 20-40 parts of aluminum hydroxide, 1-8 parts of molybdenum source by mass, 1-8 parts of strontium source by mass and 0.2-0.8 part of auxiliary agent by mass. The invention also discloses a preparation method of the anti-rust pigment for the water-based paint. The invention improves the antirust effect, stability and universality of the pigment in a water-based system through an innovative synthesis process and modification treatment, and meanwhile, the product has low cost and moderate price and can meet the requirements of domestic water-based paint manufacturers at the present stage.
Description
Technical Field
The invention relates to the technical field of antirust pigments, in particular to an antirust pigment for a water-based paint and a preparation method thereof.
Background
The water-based paint is safe in production and construction, non-toxic, odorless, non-flammable, easy to clean equipment, and the water-based paint is cheaper and more easily available than the solvent-based paint. With the improvement of national environmental protection consciousness and the coming of national environmental protection policy, the water-based coating replaces the solvent-based coating, the domestic market share of the water-based coating is rapidly increased, and the yield is rapidly increased. The anti-rust pigment corresponding to the water-based anti-corrosion coating also faces huge market demands.
The environment-friendly anti-rust pigment used in the existing anti-corrosion paint is mainly phosphate series products such as zinc phosphate, aluminum tripolyphosphate and the like. However, from the use situation of various domestic water-based paint enterprises, the problems of unsatisfactory antirust effect, poor use stability, insufficient storage time, high price of imported products and the like still exist in water-based systems, particularly in water-based acrylic paints pursuing cost performance.
Disclosure of Invention
The invention aims to provide an antirust pigment for a water-based paint, which is a modified phosphate antirust pigment containing zinc, aluminum, molybdenum, strontium, an auxiliary agent and other components, improves the antirust effect, stability and universality of the pigment in a water-based system through innovative synthesis process and modification treatment, has low product cost and moderate price, and can meet the requirements of domestic water-based paint manufacturers at the present stage.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention relates to an antirust pigment for a water-based paint, which is prepared from the following raw materials in parts by weight:
80-120 parts of phosphoric acid
70-110 parts of zinc oxide
20-40 parts of aluminum hydroxide
1-8 parts by mass of molybdenum source based on the mass of molybdenum element
A strontium source in an amount of 1 to 8 parts by mass based on the amount of the strontium element
0.2-0.8 part of an auxiliary agent.
Further, the molybdenum source is one or a mixture of more than one of zinc molybdate, calcium molybdate, barium molybdate, aluminum molybdate, strontium molybdate, ammonium molybdate and sodium molybdate.
Further, the strontium source is one or a mixture of more than one of strontium oxide, strontium hydroxide, strontium molybdate, strontium carbonate, strontium chromate, strontium sulfate and strontium nitrate.
Further, the auxiliary agent is one or a mixture of more than one of sulfonate, phthalate and ethanolamine.
Further, the preparation method of the anti-rust pigment for the water-based paint comprises the following steps:
A. putting zinc oxide and aluminum hydroxide into grinding equipment, adding 1-2 times of water by weight, and grinding to prepare slurry;
B. b, putting phosphoric acid into grinding equipment, and mixing and reacting with the slurry prepared in the step A under grinding conditions;
C. b, sequentially adding a molybdenum source, a strontium source and an auxiliary agent into grinding equipment for continuous grinding, and modifying the reaction product obtained in the step B;
D. and finally, centrifuging, drying and crushing the slurry to obtain the high-efficiency energy-saving material.
Further, the grinding time in the step A is 10-120 minutes.
Further, the reaction time in the step B is 30-240 minutes.
Further, the reaction temperature in the step B is 20-80 ℃.
Further, the grinding time in the step C is 20-40 minutes.
The invention has the following remarkable effects:
1. the invention introduces aluminum element on the basis of the traditional zinc phosphate antirust pigment, increases the activity of zinc phosphate, improves the antirust effect, and can effectively reduce the cost by adding the aluminum element.
2. The invention also adds components with antirust effect such as molybdenum, strontium, auxiliary agent and the like to modify the antirust pigment, and greatly enhances the antirust performance of the product by utilizing the synergistic antirust effect of the molybdenum and the strontium; the introduction of the auxiliary agent not only improves the antirust performance of the product, but also improves the dispersibility and stability.
3. The components of the invention form an organic composite system, and the organic composite system has higher dispersity and stability, so that the invention can be suitable for various water-based coatings on the basis of not influencing the antirust performance, and has higher universality. Experiments of examples 10 and 11 of the present invention fully prove that the present invention has better antirust effect compared with pure zinc phosphate series products, and has better stability in water-based paint compared with aluminum tripolyphosphate series products.
4. According to the preparation method disclosed by the invention, the molybdenum, the strontium and the auxiliary agent are fully reacted with the zinc oxide and the aluminum hydroxide fine slurry under the grinding condition, so that the wrapping problem of the traditional solid-liquid reaction is avoided, the reaction can be rapidly and completely carried out at a low temperature, the quality of the product is ensured, and the energy consumption is saved.
5. Compared with the traditional step-by-step reaction process, the invention adopts a sand mill to synthesize in place once, and the synthesis, modification and crushing are carried out in one step, so that the process and operation steps are greatly reduced, the production time is shortened, the obtained product is dried, the energy consumption and time consumption are not needed in the crushing stage, the average particle size of the particles can reach 2-5 microns after being slightly scattered, the particle size distribution range is narrow, and the product quality is good.
Drawings
FIG. 1 shows the comparison results of the performance of the product of example 1, zinc phosphate and modified aluminum tripolyphosphate respectively applied in a water-based epoxy coating;
FIG. 2 shows the comparison result of the performance of the product of example 8, zinc phosphate and modified aluminum tripolyphosphate respectively applied in the water-based acrylic paint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more concise and clear, the present invention is described with reference to the following specific examples, but the present invention is by no means limited to these examples. The following are only preferred embodiments of the present invention, which are intended to illustrate the present invention and should not be construed as limiting the scope of the present invention. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Example 1:
putting 4.6kg of zinc oxide and 1.3kg of aluminum hydroxide into a sand mill, adding 5.9kg of water, and grinding for 30 minutes; then 6.5kg of industrial phosphoric acid is put into the sand mill for 90 minutes, and the reaction temperature is controlled to be 60 ℃; then, 0.2kg of zinc molybdate, 0.2kg of aluminum molybdate, 0.4kg of strontium oxide and 0.05kg of 5-nitroisophthalic acid zinc are sequentially added, and the mixture is continuously ground for 20 minutes; and finally, discharging, centrifugally dewatering, drying and crushing to obtain the fertilizer.
Example 2:
putting 8kg of zinc oxide and 1.6kg of aluminum hydroxide into a sand mill, adding 14kg of water, and grinding for 60 minutes; then 8kg of industrial phosphoric acid is put into the sand mill for 120 minutes, and the reaction temperature is controlled to be 20 ℃; then, 0.2kg of calcium molybdate, 0.2kg of ammonium molybdate, 0.4kg of sodium molybdate, 0.2kg of strontium oxide, 0.2kg of strontium hydroxide, 0.2kg of strontium carbonate, 0.03kg of zinc 5-nitroisophthalate and 0.03kg of triethanolamine are sequentially added, and the mixture is continuously ground for 30 minutes; and finally, discharging, centrifugally dewatering, drying, crushing and packaging to obtain the product.
Example 3:
putting 4.4kg of zinc oxide and 1.5kg of aluminum hydroxide into a sand mill, adding 11.8kg of water, and grinding for 10 minutes; then 5kg of industrial phosphoric acid is added for grinding for 30 minutes, and the reaction temperature is controlled to be 40 ℃; then, 0.1kg of ammonium molybdate, 0.1kg of barium molybdate, 0.1kg of aluminum molybdate, 0.1kg of strontium carbonate, 0.1kg of strontium chromate, 0.1kg of strontium sulfate, 0.02kg of zinc phthalate and 0.01kg of ethanolamine are sequentially added, and the mixture is continuously ground for 30 minutes; and finally, discharging, centrifugally dewatering, drying and crushing to obtain the fertilizer.
Example 4:
putting 5.5kg of zinc oxide and 1.5kg of aluminum hydroxide into a sand mill, adding 8.4kg of water, and grinding for 40 minutes; then 6kg of industrial phosphoric acid is added for grinding for 60 minutes, and the reaction temperature is controlled to be 50 ℃; then, 0.4kg of zinc molybdate, 0.4kg of strontium hydroxide and 0.03kg of zinc phthalate are sequentially added, and the grinding is continued for 30 minutes; and finally, discharging, centrifugally dewatering, drying, crushing and packaging to obtain the product.
Example 5:
putting 6kg of zinc oxide and 1.5kg of aluminum hydroxide into a sand mill, adding 12kg of water, and grinding for 70 minutes; then 7kg of industrial phosphoric acid is added for grinding for 150 minutes, and the reaction temperature is controlled to be 70 ℃; then, 0.8kg of zinc molybdate, 0.6kg of strontium carbonate, 0.02kg of zinc phthalate, 0.02kg of calcium sulfonate and 0.01kg of ethanolamine are sequentially added, and the mixture is continuously ground for 30 minutes; and finally, discharging, centrifugally dewatering, drying, crushing and packaging to obtain the product.
Example 6:
putting 5kg of zinc oxide and 2kg of aluminum hydroxide into a sand mill, adding 12.6kg of water, and grinding for 80 minutes; then 6kg of industrial phosphoric acid is added and ground for 90 minutes, and the reaction temperature is controlled to be 80 ℃; then, 0.4kg of calcium molybdate, 0.3kg of strontium oxide, 0.1kg of strontium nitrate and 0.04kg of triethanolamine are sequentially added, and the mixture is continuously ground for 30 minutes; and finally, discharging, centrifugally dewatering, drying and crushing to obtain the fertilizer.
Example 7:
putting 4.4kg of zinc oxide and 1.6kg of aluminum hydroxide into a sand mill, adding 9kg of water, and grinding for 20 minutes; then adding 4kg of industrial phosphoric acid, grinding for 50 minutes, and controlling the reaction temperature to be 65 ℃; then, 0.32kg of barium molybdate, 0.32kg of strontium nitrate and 0.03kg of zinc phthalate are sequentially added, and the mixture is continuously ground for 20 minutes; and finally, discharging, centrifugally dewatering, drying, crushing and packaging to obtain the product.
Example 8:
putting 7.2kg of zinc oxide and 2kg of aluminum hydroxide into a sand mill, adding 10kg of water, and grinding for 120 minutes; then 8kg of industrial phosphoric acid is added for grinding for 240 minutes, and the reaction temperature is controlled to be 55 ℃; then, 0.3kg of zinc molybdate, 0.2kg of barium molybdate, 0.5kg of strontium nitrate and 0.05kg of calcium sulfonate are sequentially added, and the mixture is continuously ground for 30 minutes; and finally, discharging, centrifugally dewatering, drying and crushing to obtain the fertilizer.
Example 9:
putting 6.2kg of zinc oxide and 1.5kg of aluminum hydroxide into a sand mill, adding 11.5kg of water, and grinding for 100 minutes; then 7kg of industrial phosphoric acid is added for grinding for 180 minutes, and the reaction temperature is controlled to be 60 ℃; then, 0.17kg of zinc molybdate, 0.08kg of strontium oxide and 0.02kg of zinc phthalate are sequentially added, and the mixture is continuously ground for 40 minutes; and finally, discharging, centrifugally dewatering, drying and crushing to obtain the fertilizer.
Example 10: application test
The product (ZPX) prepared in example 1, zinc phosphate and modified aluminum tripolyphosphate were applied to an aqueous epoxy coating for comparative tests of properties. Modified aluminum tripolyphosphate (APW-2) and zinc phosphate as a comparison are rust preventive pigment products produced by Guangxi New Crystal technology, Inc. and sold on the market.
Preparing paint: the waterborne epoxy resin anticorrosive paint is prepared by fully dispersing and pulping waterborne epoxy resin, water, cosolvent, part of additives, pH regulator, antirust pigment and other auxiliary pigments and fillers, grinding the mixture to be proper in fineness, sieving the mixture, adding the rest of additives and fully stirring the mixture.
The storage stability, the adhesion, the antirust performance and the like of the GH/T4759-2014 water-based epoxy resin anticorrosive paint are tested. The results are shown in figure 1.
As can be seen from figure 1, the product of the invention is easy to disperse and stable in storage in a water-based epoxy system, has better antirust performance than zinc phosphate, and is similar to modified aluminum tripolyphosphate.
Example 11: application test
The product (ZPX) obtained in example 8, zinc phosphate and modified aluminum tripolyphosphate were used in aqueous acrylic paints for comparative tests. Modified aluminum tripolyphosphate (APW-2) and zinc phosphate as a comparison are rust preventive pigment products produced by Guangxi New Crystal technology, Inc. and sold on the market.
Preparing paint: the water-based acrylic resin coating is prepared by fully dispersing and pulping the water-based acrylic emulsion, water, part of the auxiliary agent, the pH regulator, the antirust pigment and other pigments and fillers, grinding the mixture to be proper in fineness, sieving the mixture, adding the rest of the auxiliary agent, and fully stirring the mixture.
The results of tests such as storage stability, adhesion, rust prevention performance and the like are shown in FIG. 2 according to GH/T4758-2014.
As can be seen from FIG. 2, the modified aluminum tripolyphosphate in the aqueous acrylic acid system has poor use effect due to insufficient heat storage caused by the problem of compatibility stability with resin, and the product of the invention is stable and easy to use in the system, and meanwhile, the antirust performance is obviously better than that of zinc phosphate.
Claims (7)
1. The anti-rust pigment for the water-based paint is characterized by being prepared from the following raw materials in parts by weight:
80-120 parts of phosphoric acid
70-110 parts of zinc oxide
20-40 parts of aluminum hydroxide
1-8 parts by mass of molybdenum source based on the mass of molybdenum element
A strontium source in an amount of 1 to 8 parts by mass based on the amount of the strontium element
0.2-0.8 part of an auxiliary agent;
the preparation method comprises the following steps:
A. putting zinc oxide and aluminum hydroxide into grinding equipment, adding 1-2 times of water by weight, and grinding to prepare slurry;
B. b, putting phosphoric acid into grinding equipment, and mixing and reacting with the slurry prepared in the step A under grinding conditions;
C. b, sequentially adding a molybdenum source, a strontium source and an auxiliary agent into grinding equipment for continuous grinding, and modifying the reaction product obtained in the step B;
D. finally, centrifuging, drying and crushing the slurry to obtain the high-efficiency energy-saving material;
the auxiliary agent is one or a mixture of more than one of sulfonate, phthalate and ethanolamine.
2. The rust inhibitive pigment for aqueous paints according to claim 1, characterized in that: the molybdenum source is one or a mixture of more than one of zinc molybdate, calcium molybdate, barium molybdate, aluminum molybdate, strontium molybdate, ammonium molybdate and sodium molybdate.
3. The rust inhibitive pigment for aqueous paints according to claim 1, characterized in that: the strontium source is one or a mixture of more than one of strontium oxide, strontium hydroxide, strontium molybdate, strontium carbonate, strontium chromate, strontium sulfate and strontium nitrate.
4. The rust inhibitive pigment for aqueous coating materials according to claim 1, characterized in that: the grinding time in the step A is 10-120 minutes.
5. The rust inhibitive pigment for aqueous paints according to claim 1, characterized in that: the reaction time in the step B is 30-240 minutes.
6. The rust inhibitive pigment for aqueous paints according to claim 1, characterized in that: and the reaction temperature in the step B is 20-80 ℃.
7. The rust inhibitive pigment for aqueous paints according to claim 1, characterized in that: and C, grinding for 20-40 minutes.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088111A1 (en) * | 2005-08-26 | 2007-04-19 | Ppg Industries Ohio, Inc. | Coating compositions exhibiting corrosion resistance properties, related coated substrates, and methods |
| 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 |
| CN107513341A (en) * | 2017-08-22 | 2017-12-26 | 北京碧海舟腐蚀防护工业股份有限公司 | Quick-drying high solid carbamide paint, its preparation method and application |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088111A1 (en) * | 2005-08-26 | 2007-04-19 | Ppg Industries Ohio, Inc. | Coating compositions exhibiting corrosion resistance properties, related coated substrates, and methods |
| 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 |
| CN107513341A (en) * | 2017-08-22 | 2017-12-26 | 北京碧海舟腐蚀防护工业股份有限公司 | Quick-drying high solid carbamide paint, its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 新一代磷酸锌系防锈颜料—磷酸铝锌的合成和应用;骆明;《化工技术与开发》;20041231;第33卷(第6期);第8-10页 * |
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