CN112159606A - Water-based nano universal color paste and preparation method thereof - Google Patents
Water-based nano universal color paste and preparation method thereof Download PDFInfo
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- CN112159606A CN112159606A CN202011023833.1A CN202011023833A CN112159606A CN 112159606 A CN112159606 A CN 112159606A CN 202011023833 A CN202011023833 A CN 202011023833A CN 112159606 A CN112159606 A CN 112159606A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000008367 deionised water Substances 0.000 claims abstract description 24
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 24
- 239000000049 pigment Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims description 56
- 238000003756 stirring Methods 0.000 claims description 23
- 238000005303 weighing Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- 239000002002 slurry Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 244000248349 Citrus limon Species 0.000 claims description 6
- 235000005979 Citrus limon Nutrition 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- ZLFVRXUOSPRRKQ-UHFFFAOYSA-N chembl2138372 Chemical compound [O-][N+](=O)C1=CC(C)=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 ZLFVRXUOSPRRKQ-UHFFFAOYSA-N 0.000 claims description 6
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 claims description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 230000006750 UV protection Effects 0.000 abstract description 6
- 239000002086 nanomaterial Substances 0.000 abstract description 3
- 230000005476 size effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000003973 paint Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000001055 blue pigment Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 239000001052 yellow pigment Substances 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229940023462 paste product Drugs 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
-
- 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
-
- 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
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Abstract
The water-based nano universal color paste comprises the following components in parts by weight: 30-50 parts of deionized water, 5-10 parts of water-based general resin, 20-40 parts of pigment, 4-6 parts of nano filler and 10-20 parts of water-based dispersant; the waterborne general resin is waterborne acrylic modified polyurethane resin; the nano filler is nano zinc oxide with the grain diameter of 50 +/-5 nm. The universal color paste can give full play to the quantum size effect of the nano material, and the finished color paste is water-based, has universal stability, and has excellent performances of good dispersibility, durability, ultraviolet resistance, water resistance, wear resistance and the like.
Description
Technical Field
The invention relates to the technical field of color paste preparation, in particular to an aqueous nano universal color paste and a preparation method thereof.
Background
In the prior art, most of anticorrosive paint production uses a mixed grinding process, the steps in the preparation process are more, the grinding dispersion efficiency is low, the production equipment is more, the process is complex and inefficient, the workload of cleaning equipment is large when varieties and colors are changed in production, and the color of colored paint cannot be accurately controlled. The multiple grinding and color mixing procedures increase the material and energy loss in the production process, and also cause the difficulty of small-batch production, so that the stockpile of colored paint is accumulated, the operation cost of a company is increased, and the enterprise benefit is seriously influenced.
The water-based nano universal color paste is a pigment concentrate, is green and environment-friendly, conforms to the development trend of national water-based paint, and can be applied to color modulation of water-based anticorrosive paint for bridges, steel structures, mechanical equipment and the like. The color paste has strong tinting strength, high pigment ratio and good compatibility. When the color paste is used for producing the anticorrosive paint, the paint production can be finished by only adding a proper amount of color paste in the basic paint and uniformly stirring and mixing the color paste, the production flow is short, the efficiency is high, and the waste of materials and energy is greatly reduced. The water-based color paste in the prior art has poor multi-versatility, and the performances of ultraviolet resistance, aging resistance and the like can not meet the actual requirements of the anticorrosive paint.
Disclosure of Invention
The technical purpose of the invention is as follows: the water-based nano universal color paste can fully exert the quantum size effect of the nano material, has universal stability, is water-based in finished color paste, and has excellent performances such as good dispersibility, durability, ultraviolet resistance, water resistance, wear resistance and the like, and the preparation method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: the water-based nano universal color paste comprises the following components in parts by weight: 30-50 parts of deionized water, 5-10 parts of water-based general resin, 20-40 parts of pigment, 4-6 parts of nano filler and 10-20 parts of water-based dispersant; the waterborne general resin is waterborne acrylic modified polyurethane resin; the nano filler is nano zinc oxide with the particle size of 50 +/-5 nm.
Further, the pigment is one of toluidine red, phthalocyanine blue, phthalocyanine green, titanium dioxide and lemon yellow.
Furthermore, the aqueous dispersant is composed of a copolymer containing pigment affinity groups and a water-soluble nonionic surfactant in a mass ratio of 10: 1.
Further, the copolymer containing pigment affinity groups in the aqueous dispersant is DISPERBYK-2055 of Bick Germany.
Further, the water-soluble nonionic surfactant in the aqueous dispersant is Dow X-405 or German winning creations surfynol 465.
A preparation method of water-based nano universal color paste comprises the following steps:
step one, weighing 20-40 parts by weight of deionized water, placing the deionized water into a dispersion kettle, adding 5-10 parts by weight of waterborne general resin into the dispersion kettle under the stirring condition of 400r/min, adjusting the stirring speed to 600r/min, and continuing stirring for 10-15min to prepare a dispersion I for later use;
step two, weighing 10-20 parts of aqueous dispersant by weight, adding the aqueous dispersant into the dispersion I prepared in the step one, and performing dispersion treatment for 10-20min to prepare a dispersion II for later use;
step three, weighing 20-40 parts of pigment again according to parts by weight, adding the pigment into the dispersion II prepared in the step two, carrying out dispersion treatment for 5-15min under the stirring condition of 800-1000r/min, then transferring the obtained mixture into a sand mill, and grinding the mixture until the fineness is less than or equal to 40 mu m to prepare slurry for later use;
and step four, transferring the slurry prepared in the step three into a dispersion kettle again, adding 4-6 parts of nano filler into the dispersion kettle, after the nano filler is fully and uniformly dispersed, transferring the slurry into a nano ultrasonic instrument for ultrasonic treatment until the nano filler is fully dispersed in a mixing system, then adding 0-30 parts of deionized water into the obtained mixture for viscosity adjustment, and after the mixture is fully and uniformly mixed, obtaining the finished product of the waterborne nano universal color paste.
Further, the adding rate of the aqueous general-purpose resin in the step one is 5-10 g/min.
The invention has the beneficial effects that:
1. the water-based nano universal color paste provided by the invention is prepared by mixing the nano filler with common pigment, resin, dispersant and the like through specific material proportion and reasonable process fine control, and fully exerts the quantum size effect, surface effect, dielectric effect, macroscopic quantum tunneling effect and the like of the nano material, so that the prepared color paste has the characteristics of good storage stability, excellent universality, good tinting strength, good dispersibility and the like, meets the national trend requirements of green and environmental protection, has excellent performances of ultraviolet resistance, aging resistance, water resistance, wear resistance and the like, and can be widely applied to water-based anticorrosive coatings of bridges, steel structures, mechanical equipment and the like.
2. According to the waterborne nano universal color paste provided by the invention, the finished color paste has stronger tinting strength and higher color ratio, and the waterborne acrylic modified polyurethane resin selected from the components has good compatibility because the surface groups are modified. The nano particles added in the color paste improve the coloring strength, weather resistance, chromatic light, brightness, storage stability and the like of the color paste. The finished color paste is less in use amount in the anticorrosive paint, and long-term production requirements can be met by a small amount of stock. After the color paste is prepared, when the coating is produced, only a proper amount of color paste of a proper variety is added into the base coating, and the coating production is completed after the color paste is stirred and mixed uniformly, so that the production process is short and the efficiency is high.
According to the water-based nano universal color paste, the nano zinc oxide filler with the particle size of 50 +/-5 nm is added into the color paste in a certain proportion, and under the action of the functional additive, the nano zinc oxide can form stable fluid with the pigment, so that the ultraviolet resistance of the pigment can be effectively improved. The nano particles can show the surface effect and small-size effect which are not existed in the conventional particles, so that the color paste has excellent physical and chemical properties, the durability, heat resistance, corrosion resistance, leveling property and the like of the coating can be further improved, the apparent characteristic and mechanical strength of the coating are improved, and the production cost of the coating is reduced.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the present invention is not limited to the examples.
The water-based nano universal color paste comprises the following components in parts by weight:
30-50 parts of deionized water;
5-10 parts of water-based general resin;
20-40 parts of pigment;
4-6 parts of nano filler;
10-20 parts of a water-based dispersant.
Wherein the waterborne general resin is waterborne acrylic modified polyurethane resin; the nano filler is nano zinc oxide with the particle size of 50 +/-5 nm. The pigment is one of toluidine red, phthalocyanine blue, phthalocyanine green, titanium dioxide and lemon yellow.
The aqueous dispersant is composed of a copolymer containing a pigment affinity group and a water-soluble nonionic surfactant in a mass ratio of 10:1, and the copolymer containing the pigment affinity group and the water-soluble nonionic surfactant are added in sequence in a ratio of 10: 1. Specifically, the copolymer containing pigment affinity groups is DISPERBYK-2055 of Bick, Germany. The water-soluble nonionic surfactant is Dow X-405 or German winning creativity surfynol 465.
The preparation process of the water-based nano universal color paste specifically comprises the following steps:
(1) weighing 20-40 parts of deionized water in a dispersion kettle, stirring at the rotating speed of 400r/min, slowly adding 5-10 parts of water-based general resin, and continuously stirring for 10-15 minutes at the rotating speed of 600 r/min;
(2) weighing 10-20 parts of water-based dispersant, and performing dispersion treatment in a dispersion machine for 10-20 minutes;
(3) adding 20-40 parts of pigment, performing dispersion treatment at the temperature of 800-;
(4) and transferring the prepared slurry into a dispersion kettle, adding 4-6 parts of nano filler, uniformly dispersing, transferring into a nano ultrasonic instrument until the nano filler is completely dispersed, and adding the rest deionized water to adjust the viscosity to prepare the water-based nano universal color paste.
Example 1
The aqueous nanometer universal color paste of the embodiment comprises the following components in parts by weight: 50 parts of deionized water; 6 parts of waterborne acrylic modified polyurethane resin; 20 parts of toluidine red pigment; 4 parts of nano zinc oxide; DISPERBYK-205515 parts; and (4) 4051.5 parts of Dow X-ray.
The preparation process comprises the following steps:
step one, weighing 30 parts by weight of deionized water, placing the deionized water into a dispersion kettle, then adding 6 parts by weight of waterborne general resin into the dispersion kettle at an addition rate of 8g/min under a stirring condition of 400r/min, then adjusting the stirring speed to 600r/min, and continuing stirring for 15min to prepare a dispersion I for later use;
step two, weighing 15 parts of DISPERBYK-2055 according to parts by weight, adding the DISPERBYK-2055 into the dispersion I prepared in the step one, dispersing, then weighing 1.5 parts of Dow X-405, adding the Dow X-405 into the dispersion I prepared in the step one, and dispersing for 15min to prepare a dispersion II for later use;
step three, weighing 20 parts of toluidine red pigment again according to the parts by weight, adding the toluidine red pigment into the dispersion II prepared in the step two, carrying out dispersion treatment for 15min under the stirring condition of 1000r/min, then transferring the obtained mixture into a sand mill, and grinding the mixture until the fineness is less than or equal to 40um to prepare slurry for later use;
and step four, transferring the slurry prepared in the step three into a dispersion kettle again, adding 4 parts of nano zinc oxide into the dispersion kettle, after the nano zinc oxide is fully and uniformly dispersed, transferring the slurry into a nano ultrasonic instrument for ultrasonic treatment until the nano filler is fully dispersed in a mixing system, then adding 20 parts of deionized water into the obtained mixture for viscosity adjustment, and fully and uniformly mixing to obtain the finished product of the waterborne nano universal color paste.
The aqueous color paste prepared in this example was subjected to performance testing, and the obtained performance data are shown in table 1 below.
Example 2
The aqueous nanometer universal color paste of the embodiment comprises the following components in parts by weight: 40 parts of deionized water; 8 parts of waterborne acrylic modified polyurethane resin; 25 parts of phthalocyanine blue pigment; 5 parts of nano zinc oxide; DISPERBYK-205510 parts; and (5) 4651 parts of wound surfynol.
The preparation process comprises the following steps:
step one, weighing 25 parts by weight of deionized water, placing the deionized water into a dispersion kettle, then adding 8 parts of waterborne general resin-waterborne acrylic acid modified polyurethane resin into the dispersion kettle at an adding rate of 5g/min under the stirring condition of 400r/min, then adjusting the stirring speed to 600r/min, and continuing stirring for 12min to prepare a dispersion I for later use;
step two, weighing 10 parts of DISPERBYK-2055 according to parts by weight, adding the DISPERBYK-2055 into the dispersion I prepared in the step one, dispersing, then weighing 1 part of wound surfynol465, adding the weighed DISPERBYK-2055 into the dispersion I prepared in the step one, and dispersing for 10min to prepare a dispersion II for later use;
step three, weighing 25 parts of phthalocyanine blue pigment again according to parts by weight, adding the phthalocyanine blue pigment into the dispersion II prepared in the step two, performing dispersion treatment for 10min under the stirring condition of 800r/min, then transferring the obtained mixture into a sand mill, and grinding the mixture until the fineness is less than or equal to 40um to prepare slurry for later use;
and step four, transferring the slurry prepared in the step three into a dispersion kettle again, adding 5 parts of nano zinc oxide into the dispersion kettle, after the slurry is fully and uniformly dispersed, transferring the slurry into a nano ultrasonic instrument for ultrasonic treatment until the nano filler is fully dispersed in a mixing system, then adding 15 parts of deionized water into the obtained mixture for viscosity adjustment, and after the mixture is fully and uniformly mixed, obtaining the finished product of the waterborne nano universal color paste.
The aqueous color paste prepared in this example was subjected to performance testing, and the obtained performance data are shown in table 1 below.
Example 3
The aqueous nanometer universal color paste of the embodiment comprises the following components in parts by weight: 35 parts of deionized water; 10 parts of waterborne acrylic modified polyurethane resin; 40 parts of lemon yellow pigment; 6 parts of nano zinc oxide; DISPERBYK-205518 parts; and (4) 4051.8 parts of Dow X-ray.
The preparation process comprises the following steps:
step one, weighing 30 parts by weight of deionized water, placing the deionized water into a dispersion kettle, then adding 10 parts of waterborne general resin-waterborne acrylic acid modified polyurethane resin into the dispersion kettle at an adding rate of 10g/min under the stirring condition of 400r/min, then adjusting the stirring speed to 600r/min, and continuing stirring for 10min to prepare a dispersion I for later use;
step two, weighing 18 parts of DISPERBYK-2055 by weight, adding the DISPERBYK-2055 into the dispersion I prepared in the step one, dispersing, weighing 1.8 parts of Dow X-405, adding the Dow X-405 into the dispersion I prepared in the step one, and dispersing for 20min to prepare a dispersion II for later use;
step three, weighing 40 parts of lemon yellow pigment again according to parts by weight, adding the lemon yellow pigment into the dispersion II prepared in the step two, carrying out dispersion treatment for 5min under the stirring condition of 900r/min, then transferring the obtained mixture into a sand mill, and grinding the mixture until the fineness is less than or equal to 40um to prepare slurry for later use;
and step four, transferring the slurry prepared in the step three into a dispersion kettle again, adding 6 parts of nano zinc oxide into the dispersion kettle, after the slurry is fully and uniformly dispersed, transferring the slurry into a nano ultrasonic instrument for ultrasonic treatment until the nano filler is fully dispersed in a mixing system, then adding 5 parts of deionized water into the obtained mixture for viscosity adjustment, and after the mixture is fully and uniformly mixed, obtaining the finished product of the waterborne nano universal color paste.
The aqueous color paste prepared in this example was subjected to performance testing, and the obtained performance data are shown in table 1 below.
The performance test data of the color paste prepared by the embodiments of the invention are shown in Table 1
TABLE 1
As can be seen from the performance index test results in Table 1, the color paste product of the invention has the advantages of uniform appearance after storage, good dispersibility, good storage stability, moderate viscosity, good compatibility with basic coatings, good batch reproducibility after multiple production, small color difference among different batches, good coloring strength and tinting strength of the color paste, and excellent ultraviolet resistance, aging resistance, water resistance, wear resistance and the like, greatly reduces the construction cost after being added into an anticorrosive coating for use, and has good practical effect.
The above examples are provided for clarity of illustration only and are not intended to limit the invention to the particular embodiments described. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And obvious variations or modifications can be made without departing from the scope of the invention as claimed.
The present invention is not described in detail in the prior art.
Claims (7)
1. The water-based nano universal color paste is characterized by comprising the following components in parts by weight: 30-50 parts of deionized water, 5-10 parts of water-based general resin, 20-40 parts of pigment, 4-6 parts of nano filler and 10-20 parts of water-based dispersant;
the waterborne general resin is waterborne acrylic modified polyurethane resin;
the nano filler is nano zinc oxide with the particle size of 50 +/-5 nm.
2. The aqueous nano universal color paste according to claim 1, which is characterized in that: the pigment is any one of toluidine red, phthalocyanine blue, phthalocyanine green, titanium dioxide and lemon yellow.
3. The aqueous nano universal color paste according to claim 1, which is characterized in that: the aqueous dispersant is composed of a copolymer containing pigment affinity groups and a water-soluble nonionic surfactant in a mass ratio of 10: 1.
4. The aqueous nano universal color paste according to claim 3, which is characterized in that: the copolymer containing pigment affinity groups in the water-based dispersant is DISPERBYK-2055 of Germany Bick.
5. The aqueous nano universal color paste according to claim 3, which is characterized in that: the water-soluble nonionic surfactant in the aqueous dispersant is Dow X-405 or German winning creature surfynol 465.
6. The preparation method of the aqueous nanometer universal color paste according to claim 1, which is characterized by comprising the following steps:
step one, weighing 20-40 parts by weight of deionized water, placing the deionized water into a dispersion kettle, adding 5-10 parts by weight of waterborne general resin into the dispersion kettle under the stirring condition of 400r/min, adjusting the stirring speed to 600r/min, and continuing stirring for 10-15min to prepare a dispersion I for later use;
step two, weighing 10-20 parts of aqueous dispersant by weight, adding the aqueous dispersant into the dispersion I prepared in the step one, and performing dispersion treatment for 10-20min to prepare a dispersion II for later use;
step three, weighing 20-40 parts of pigment again according to parts by weight, adding the pigment into the dispersion II prepared in the step two, carrying out dispersion treatment for 5-15min under the stirring condition of 800-1000r/min, then transferring the obtained mixture into a sand mill, and grinding the mixture until the fineness is less than or equal to 40 mu m to prepare slurry for later use;
and step four, transferring the slurry prepared in the step three into a dispersion kettle again, adding 4-6 parts of nano filler into the dispersion kettle, after the nano filler is fully and uniformly dispersed, transferring the slurry into a nano ultrasonic instrument for ultrasonic treatment until the nano filler is fully dispersed in a mixing system, then adding 0-30 parts of deionized water into the obtained mixture for viscosity adjustment, and after the mixture is fully and uniformly mixed, obtaining the finished product of the waterborne nano universal color paste.
7. The preparation method of the aqueous nanometer universal color paste according to claim 6, which is characterized by comprising the following steps: the adding speed of the aqueous general-purpose resin in the step one is 5-10 g/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115746619A (en) * | 2022-12-09 | 2023-03-07 | 广东英科集团股份有限公司 | Antibacterial water-based ink and preparation method thereof |
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| CN115746619B (en) * | 2022-12-09 | 2023-08-25 | 广东英科集团股份有限公司 | Antibacterial water-based ink and preparation method thereof |
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Application publication date: 20210101 |