CN106675211B - Water-based highlight antirust carbon black color paste and preparation method and application thereof - Google Patents
Water-based highlight antirust carbon black color paste and preparation method and application thereof Download PDFInfo
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- CN106675211B CN106675211B CN201611064623.0A CN201611064623A CN106675211B CN 106675211 B CN106675211 B CN 106675211B CN 201611064623 A CN201611064623 A CN 201611064623A CN 106675211 B CN106675211 B CN 106675211B
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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
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/001—Pigment pastes, e.g. for mixing in paints in aqueous medium
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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
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/005—Carbon black
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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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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Abstract
The invention belongs to the field of water-based anticorrosive coatings, and discloses water-based highlight antirust carbon black color paste and a preparation method and application thereof. The color paste comprises the following components in parts by weight: 0.5-2.5 parts of organic pigment dispersant, 1-5 parts of inorganic pigment dispersant, 0.1-1.0 part of defoaming agent, 0-2.5 parts of pH regulator, 10-25 parts of carbon black, 5-20 parts of aluminum tripolyphosphate, 15-25 parts of zinc phosphate, 0-25 parts of superfine barium sulfate, 1-5 parts of moisturizing antifreeze agent, 0-4.0 parts of anti-settling thixotropic agent, 0.1-1.0 part of mildew-proof bactericide and 30-60 parts of water. The preparation method is simple, environment-friendly, low in energy consumption and low in cost, and the prepared water-based high-gloss antirust carbon black color paste has excellent performance, has good compatibility and color development with various water-based antirust varnishes, and is suitable for preparing high-gloss water-based anticorrosive finish paint.
Description
Technical Field
The invention belongs to the field of water-based anticorrosive coatings, and particularly relates to a water-based high-gloss antirust carbon black color paste, and a preparation method and application thereof.
Background
The color paste as a colorant is an important component of the paint. With the development of the paint, pigment and auxiliary agent industry, the paint color matching process is changed from pigment powder color matching to color paste color matching, the color paste industry in China also has fundamental changes, from basic import in the middle of the 90 th century in the last century, to the research and development of two or three domestic enterprises and scientific research institutions at the end of the 90 th century, smaller-scale trial popularization is formed initially, and in the last 20 years, manufacturers for producing water-based color pastes in China have increased to over 50, and the application of the water-based color pastes in the fields of architectural paints, anticorrosive paints and the like is more and more extensive.
At present, grinding resin is not added into the water-based color paste basically, water is used as a dispersing medium, the compatibility problem of a base paint can not be caused during color matching, but in the subsequent storage and use processes, the color paste system is often layered, pigment particles are re-aggregated and coarse, and the like, so that the defects of flooding, floating, color difference and the like of the prepared colored paint can be caused, in addition, a dispersing agent used for dispersing the water-based color paste mostly contains APEO, such as Nonylphenol Polyoxyethylene Ether (NPEO), Octylphenol Polyoxyethylene Ether (OPEO), Dodecylphenol Polyoxyethylene Ether (DPEO) and dinonylphenol polyoxyethylene ether (DNPEO), the NPEO has toxicity and cancer to mammals and aquatic organisms, the degradation of the APEO is slow, and the biodegradation rate of the APEO is 0-9%. APEO has estrogen-like action and is a chemical substance that can jeopardize the normal hormone secretion of the human body, i.e., the so-called "female effect" and aberration). With increasingly strict environmental regulations and the pursuit of consumers for environment-friendly products, the environmental performance of the aqueous color paste becomes increasingly important.
Carbon black as an ideal black pigment has good colorability, weather resistance and chemical stability, but carbon black has small particles, large specific surface area and high surface free energy, so that strong aggregation force is formed among carbon black particles, clustering phenomenon is easy to occur, Cluster groups are formed, the properties of the carbon black are represented as hydrophobic, are not easy to wet by water, are difficult to disperse, are not beneficial to the application of the carbon black in a water-based paint system, and the application of the carbon black in paint is limited.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention firstly aims to provide the water-based high-gloss antirust carbon black color paste which has excellent performance (such as tinting strength, storage stability and the like), has strong corrosion resistance and good decoration and does not contain APEO because various anti-rust colors and fillers are used in the color paste.
The invention also aims to provide a preparation method of the water-based highlight antirust carbon black color paste; the preparation process is simple, environment-friendly, low in energy consumption and low in cost.
The invention further aims to provide application of the water-based high-gloss antirust carbon black color paste, which is mainly used for preparing black finish with higher requirements on decoration and corrosion resistance.
The purpose of the invention is realized by the following technical scheme:
the water-based highlight antirust carbon black color paste comprises the following components in parts by weight:
the organic pigment dispersant is a mixture of BYK199, BYK2010 and Lumboyan hyperdispersant 27000; the inorganic pigment dispersant is FSE; the defoaming agent is defoaming agent 810; the pH regulator is DEMA; the carbon black is carbon black H380; the aluminum tripolyphosphate is APW-II; the zinc phosphate is zinc phosphate Zp-10; the moisture-retention anti-freezing agent is 1, 2-propylene glycol; the anti-settling thixotropic agent is fumed silica; the fineness of the superfine barium sulfate is 800 meshes.
The preparation method of the water-based highlight antirust carbon black color paste comprises the following operation steps: firstly, mixing and stirring 30-60 parts by weight of water, 0.5-2.5 parts by weight of organic pigment dispersant, 1-5 parts by weight of inorganic pigment dispersant, 0-2.5 parts by weight of pH regulator and 1-5 parts by weight of moisturizing antifreeze agent, controlling the stirring speed at 1500-2000 r/min to uniformly disperse the dispersant, reducing the stirring speed to 800-1200 r/min, adding 0.1-0.5 part by weight of defoaming agent under the stirring condition to eliminate bubbles generated by high-speed stirring of the dispersant, then sequentially adding 10-25 parts by weight of carbon black, 15-25 parts by weight of zinc phosphate, 5-20 parts by weight of trimeric aluminum phosphate and 0-25 parts by weight of superfine barium sulfate according to the sequence of the volumes of pigment and filler from large to small, finally adding 0-4.0 parts by weight of anti-settling thixotropic agent, 0.1-1.0 part by weight of bactericide and the rest defoaming agent to eliminate bubbles generated by air brought in the stirring process, then, increasing the stirring speed to 1500-2500 r/min, and dispersing for 15-30 minutes to obtain the water-based color paste pre-dispersion slurry; and (3) after the dispersion is finished, pouring the pre-dispersed slurry of the water-based color paste into a vertical sand mill for grinding, wherein the grinding time is 4 hours, the temperature is controlled to be lower than 45 ℃, and then filtering by using a 200-mesh filter screen to prepare the water-based highlight antirust carbon black color paste. The polishing speed is 3000-.
The application of the water-based high-gloss antirust carbon black color paste in preparing decorative and anticorrosive black finish paint.
Compared with the prior art, the invention has the following advantages and beneficial effects: the invention adopts two dispersants to be compounded for use, reduces grinding dispersion time, and the prepared water-based highlight antirust carbon black color paste has no environmental-friendly and harmless factors such as APEO, AZO, heavy metals and the like, has good compatibility and color development with various antirust varnishes, can obtain a highlight anticorrosive paint with high gloss, good corrosion resistance and excellent storage stability, and is mainly used for preparing highlight anticorrosive black finish paint.
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FIG. 1 shows the effect of grinding time on fineness of color paste in example 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
Adding 0.95kg of water, 0.02kg of pH regulator DEMA, 0.04kg of organic pigment dispersant (a mixture consisting of dispersant BYK199 produced by Bike chemical China Co., Ltd., dispersant BYK2010 produced by Bike chemical China Co., Ltd., and dispersant 27000 produced by Lubofus additive (Zhuhai) Co., Ltd.), 0.04kg of inorganic pigment dispersant FSE (purchased from Keyan chemical China Co., Ltd.) and 0.10kg of antifreeze humectant 1, 2-propylene glycol into a 4kg tank equipped with a high-speed disperser, mixing and stirring at 1500-2000 r/min to disperse the dispersant uniformly, reducing the stirring speed to 800-1200 r/min, adding 0.008kg of defoamer 810 under stirring to eliminate bubbles generated by the dispersant due to high-speed stirring, and then sequentially adding 0.36kg of carbon black H380, 0.4kg of zinc phosphate Zp-10 (Hangzhou Haibobo pigment Co., Ltd.), 0., 0.2kg of APW-II, 0.2kg of 800-mesh superfine barium sulfate and 0.02kg of thickening thixotropic agent fumed silica, and finally 0.01kg of mildew-proof bactericide and 0.002kg of defoaming agent 810 are added to eliminate bubbles generated by air brought in during stirring, and then the stirring speed is increased to 1500-2500 r/min, and the dispersion time is 20 minutes to obtain the water-based color paste pre-dispersion slurry.
Pouring the pre-dispersed slurry of the water-based color paste into a tank of a vertical sand mill for grinding at a grinding speed of 3000-3500r/min for 4 hours (the grinding time is determined as shown in figure 1), wherein the temperature must be controlled below 45 ℃ in the whole grinding process. Discharging, and filtering with 200 meshes to obtain the water-based high-gloss antirust carbon black color paste.
Detecting the color paste, wherein the result is as follows: pH 8.6, pigment 59%, fineness less than or equal to 20 μm, viscosity (coating in-4 cup, 25): 42 seconds; storage stability: the product is placed at room temperature for one month without layering and coarsening.
Example 2
Adding 1.15kg of water, 0.015kg of pH regulator DEMA, 0.05kg of organic pigment dispersant (a mixture consisting of dispersant BYK199 produced by Bike chemical China Co., Ltd., dispersant BYK2010 produced by Bike chemical China Co., Ltd., and dispersant 27000 produced by Luboemon additive (Zhuhai) Co., Ltd.), 0.08kg of inorganic pigment dispersant FSE (purchased from Keyan chemical China Co., Ltd.) and 0.12kg of antifreeze humectant 1, 2-propylene glycol into a 4kg tank equipped with a high-speed disperser, mixing and stirring at 1500-2000 r/min to disperse the dispersant uniformly, reducing the stirring speed to 800-1200 r/min, adding 0.01kg of defoamer 810 under stirring to eliminate bubbles generated by the dispersant due to high-speed stirring, and then sequentially adding 0.42kg of carbon black H380, 0.5kg of zinc phosphate Zp-10 (Hangzhou sea pigment Co., Ltd.), 0.015kg of pH regulator DEMA, 0.05kg of organic pigment dispersant (a mixture consisting of dispersant BYK199 produced by Biao additive (BYnao chemical China Co., Ltd.), 0.2kg of APW-II, 0.5kg of 800-mesh superfine barium sulfate and 0.03kg of thickening thixotropic agent fumed silica, and finally 0.01kg of mildew-proof bactericide and 0.002kg of defoaming agent 810 are added to eliminate bubbles generated by air brought in during stirring, and then the stirring speed is increased to 1500-2500 r/min, and the dispersion time is 20 minutes to obtain the water-based color paste pre-dispersion slurry.
Pouring the pre-dispersed slurry of the water-based color paste into a tank of a vertical sand mill for grinding at a grinding speed of 3000-3500r/min for 4 hours (the grinding time is determined as shown in figure 1), wherein the temperature must be controlled below 45 ℃ in the whole grinding process. Discharging, and filtering with 200 meshes to obtain the water-based high-gloss antirust carbon black color paste.
Detecting the color paste, wherein the result is as follows: pH 8.9, pigment content 50%, fineness less than or equal to 20 μm, viscosity (coating in-4 cup, 25): 30 seconds; storage stability: the product is placed at room temperature for one month without layering and coarsening.
Example 3
Preparing the aqueous highlight antirust carbon black color paste obtained by grinding in the example 1 into the aqueous epoxy single-component antirust colored paint according to the following parts by weight:
the performance of the aqueous epoxy single-component rust-proof colored paint obtained in this example is tested, and the results are shown in table 1.
Example 4
Preparing the water-based high-gloss antirust carbon black color paste obtained by grinding in the example 1 into the water-based antirust baking paint according to the following parts by weight:
the performance of the aqueous rust inhibitive baking paint obtained in this example was measured, and the results are shown in Table 1.
Example 5
Preparing the water-based highlight antirust carbon black color paste obtained by grinding in the example 1 into the water-based single-component self-drying antirust colored paint according to the following weight parts:
the performance of the aqueous one-component self-drying antirust colored paint obtained in this example is tested, and the results are shown in table 1.
Example 6
Preparing the aqueous PU two-component antirust colored paint from the aqueous highlight antirust carbon black color paste obtained by grinding in the example 1 according to the following parts by weight:
the performance of the aqueous PU two-component rust-proof colored paint obtained in the example is tested, and the results are shown in Table 1.
Example 7
Preparing the waterborne epoxy two-component colored paint from the waterborne highlight antirust carbon black color paste obtained by grinding in the example 1 according to the following parts by weight:
the performance of the waterborne epoxy two-component colored paint obtained in this example was tested, and the results are shown in table 1.
Detection standard
Measuring the color difference Delta E according to GB/T11186.2-1989 and GB/T11186.3-1989* ab(ii) a Testing the gloss according to GB/T9754-2007; the evaluation was carried out according to the GB/T1771-2007 neutral salt spray test (NSS test).
TABLE 1 Performance index of black rust inhibitive colored paint prepared in examples 3-7
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 (3)
1. The water-based high-gloss antirust carbon black color paste is characterized by comprising the following components in parts by weight: the color paste comprises the following components in parts by weight:
the organic pigment dispersant is a mixture of BYK199, BYK2010 and Lumboyan hyperdispersant 27000; the inorganic pigment dispersant is FSE; the defoaming agent is defoaming agent 810; the pH regulator is DEMA; the carbon black is carbon black H380; the aluminum tripolyphosphate is APW-II; the zinc phosphate is zinc phosphate Zp-10; the moisture-retention anti-freezing agent is 1, 2-propylene glycol; the anti-settling thixotropic agent is fumed silica; the fineness of the superfine barium sulfate is 800 meshes;
the preparation method of the water-based highlight antirust carbon black color paste comprises the following operation steps: firstly, mixing and stirring 30-60 parts by weight of water, 0.5-2.5 parts by weight of organic pigment dispersant, 1-5 parts by weight of inorganic pigment dispersant, 0-2.5 parts by weight of pH regulator and 1-5 parts by weight of moisturizing antifreeze agent, controlling the stirring speed at 1500-2000 r/min to uniformly disperse the dispersant, reducing the stirring speed to 800-1200 r/min, adding 0.1-0.5 part by weight of defoaming agent under the stirring condition to eliminate bubbles generated by high-speed stirring of the dispersant, then sequentially adding 10-25 parts by weight of carbon black, 15-25 parts by weight of zinc phosphate, 5-20 parts by weight of trimeric aluminum phosphate and 0-25 parts by weight of superfine barium sulfate according to the sequence of the volumes of pigment and filler from large to small, finally adding 0-4.0 parts by weight of anti-settling thixotropic agent, 0.1-1.0 part by weight of bactericide and the rest defoaming agent to eliminate bubbles generated by air brought in the stirring process, then, increasing the stirring speed to 1500-2500 r/min, and dispersing for 15-30 minutes to obtain the water-based color paste pre-dispersion slurry; after dispersion, pouring the pre-dispersed slurry of the water-based color paste into a vertical sand mill for grinding for 4 hours, controlling the temperature to be lower than 45 ℃, and then filtering by using a 200-mesh filter screen to prepare the water-based highlight antirust carbon black color paste;
the lower limit of the weight portion of the anti-settling thixotropic agent is not 0.
2. The water-based high-gloss antirust carbon black color paste according to claim 1, which is characterized in that: the grinding speed is 3000-3500 r/min.
3. The use of the aqueous high gloss rust inhibitive carbon black color paste according to claim 1 in the preparation of decorative and anticorrosive black topcoats.
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| CN111073397A (en) * | 2019-12-25 | 2020-04-28 | 广东嘉盛环保高新材料股份有限公司 | Two-component water-based black paste for vehicles and preparation method thereof |
| CN113429847A (en) * | 2021-05-08 | 2021-09-24 | 嘉兴泰格高新材料股份有限公司 | Highlight salt-mist-resistant water-based anticorrosive paint and preparation method thereof |
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| CN104356795B (en) * | 2014-10-10 | 2017-02-08 | 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 |
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