CN109679410A - A kind of waterborne general color paste and preparation method thereof - Google Patents
A kind of waterborne general color paste and preparation method thereof Download PDFInfo
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- CN109679410A CN109679410A CN201811570981.8A CN201811570981A CN109679410A CN 109679410 A CN109679410 A CN 109679410A CN 201811570981 A CN201811570981 A CN 201811570981A CN 109679410 A CN109679410 A CN 109679410A
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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
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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
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
Abstract
The present invention discloses a kind of waterborne general color paste and preparation method thereof, raw material components including following parts by weight: 15-30 parts of deionized water, 2-5 parts of glycerol, 10-30 parts of dispersing agent, 0.1-0.5 parts of defoaming agent, 0.1-1 parts of pH adjusting agent, 1-1.5 parts of thickener, 0.1-0.5 parts of preservative, 30-70 parts and ultra-fine barium sulfate 4-6 parts of pigment.Waterborne general color paste good fluidity prepared by the present invention, color scale is small, and the stability of mill base itself is high, and good with various coating system compatibilities, paint film has excellent surface effect after mixing with base paint, is free of VOC, safety and environmental protection, practical value with higher.
Description
Technical field
The present invention relates to technical field of coatings more particularly to a kind of waterborne general color paste and preparation method thereof.
Background technique
With the raising that people require various coating decorative performances, mill base using more and more extensive.Relative to pigment,
Mill base has addition convenient, is easy to volume metering, easily dispersible advantage good with paint compatibility.Mill base be divided into pure water slurry and
Two kinds of mill base for adding resins for universal use.Pure water slurry does not add resins for universal use, using water as decentralized medium, will not cause base in color matching
Plinth paint consistency problem, but in subsequent storage and use process, often there is colour paste system layering, pigment particles gather again
Collect, return the bad phenomenons such as thick, the colored paint prepared is caused the disadvantages such as loose colour, floating, color difference occur.Therefore, existing currently on the market
Mill base in order to improve storage stability, it will usually a large amount of solvent moisturizer is added, so that mill base is added after coating, no
But it the problem of influencing resistance to light of coating, water resistance and weatherability, and being easy to appear colour fading, dusting after coating film forming, also deposits
The problems such as increasing the VOC content of system after coating is added.Therefore, it is good how to develop product stability, and does not influence
The general aqueous color paste of environmental protection of the performances such as coating weatherability is always the insoluble technical problem in mill base field.
Summary of the invention
For aqueous color paste stability in the prior art difference and be added coating after will lead to coating property decline, VOC liter
High problem, the present invention provide a kind of waterborne general color paste and preparation method thereof.
In order to solve the above technical problems, present invention provide the technical scheme that
A kind of waterborne general color paste, the raw material components including following parts by weight: 15-30 parts of deionized water, glycerol 2-5
Part, 10-30 parts of dispersing agent, 0.1-0.5 parts of defoaming agent, 0.1-1 parts of pH adjusting agent, 1-1.5 parts of thickener, preservative 0.1-0.5
Part, 30-70 parts and ultra-fine barium sulfate 4-6 parts of pigment.
Compared with the existing technology, glycerol is added in waterborne general color paste provided by the invention as coalescing agent and moisturizing
Agent can not only be such that the one-components systems such as mill base and acrylic resin, polyurethane resin and the alkyd resin of preparation have well
Compatibility makes the mill base and dual-component polyurethane of preparation moreover, glycerol may also participate in the reaction of isocyanates and hydroxy functional group
System also has good compatibility；The ultra-fine barium sulfate of addition can coat mutually under the action of dispersing agent with pigment, can be improved
The dispersibility and color developing of pigment.It acts synergistically between each component in the present invention, significantly improves mill base and other resin systems
Compatibility while also effectively increasing the stability and exhibition of mill base so that the mill base of preparation can be suitably used for various resin systems
Color enables the mill base of preparation to be placed for a long time without mouldy and be able to maintain stable rheological characteristic, is added after coating
The performances such as gloss and weatherability, the water resistance of coating are not influenced, and coating is added and not will lead to VOC content raising later, favorably
In environmental protection and nontoxic, with strong applicability, the application easy to spread to people.
The high boiling solvents such as ethylene glycol, the propylene glycol of high-content are generally needed to be added in common colour paste system to adjust mill base
Dry and hard property, being added after coating not only influences weatherability, the water resistance of coating, but also very big dirt can be caused to environment
Dye.The present invention efficiently solves the problems, such as this by the way that low dose of glycerol is added, and mill base and other resins not only can be improved
The compatibility of system, moreover it is possible to which the caking phenomenon for reducing mill base improves the dispersion effect of pigment, improves the stability of pigment, simultaneously
The VOC content in mill base is also significantly reduced, the environmental-protecting performance of mill base is improved.
Preferably, the dispersing agent is the high molecular weight block copolymer solution with pigment affinity groups.
The degree of scatter of mill base directly determines the performance of mill base, therefore the selection of dispersing agent is most important.Band pigment parent
Stronger combination is all had to the particle surface of organic pigment and inorganic pigment with the high molecular weight block copolymer solution of group
Power, so that once granules of pigments is with dispersing agent ining conjunction with, it is just not easily to fall off, and the high molecular weight block with pigment affinity groups is total to
Polymers also has enough carbon chain lengths, can generate sufficiently large steric hindrance, prevents flocculation of pigment particles.The use of dispersing agent
Amount is also that an important factor for determining pigment degree of scatter, when the dosage of dispersing agent is lower than 10 parts or is higher than 30 parts, can make
Pigment particles aggregate leads to the compatibility poor of mill base and coating.
Preferably, the defoaming agent is organic silicon defoamer.
Preferred defoaming agent can effectively remove the micro-bubble in coating, avoid mill base be added in coating occur shrinkage cavity and
Flake problem.The dosage of preferred defoaming agent can take into account the compatibility of mill base and coating and the balance of defoaming, excessive or very few
It will lead to compatibility and defoaming be deteriorated.
Preferably, the pH adjusting agent is dimethylethanolamine.
Dimethylethanolamine is a kind of efficient amine neutralizer, effective regulation system pH value, for coating have low smell,
The advantages of low volatility, and can assign system good pH stability, have it is good help pigment-dispersing, improve the exhibition of mill base
Color.
Preferably, the thickener is the mixture of organically-modified hectorite clays and polyurethane thickener, wherein institute
The mass ratio for stating organically-modified hectorite clays and polyurethane thickener is 1:3-5.
Organically-modified hectorite clays and the agitated dispersion of two kinds of substances of polyurethane thickener can produce the netted of solid
Structure increases the viscosity of dispersion, achievees the purpose that prevent granules of pigments and ultra-fine barium sulfate from settling, while the two is with specific
Ratio cooperation can also achieve the purpose that not influencing coating levelability.Since mill base is during toning, need often to be placed on sky
In gas, currently preferred thickener and glycerol are mutually cooperateed with, and can be reduced the moisture during toning and be shunk, by color separation, skinning
Phenomenon minimizes.
Preferably, the preservative is isothiazolinone preservative.
It is furthermore preferred that the preservative is the MERGAL K9N preservative of U.S.'s Troy.
The preservative is protective agent in wide spectrum tank, can avoid water-based system and is dropped due to caused by bacterium, fungi and yeast
It solves and rotten, and does not influence the compatibility of mill base and coating, VOC and formaldehyde, more ring are not contained in MERGAL K9N preservative
It protects.
Preferably, the pigment is phthalocyanine blue, titanium dioxide, dark green or permanent violet.
The content of toner can be designed according to the different characteristics of toner.The content that general inorganic pigment class is 50-70%, it is organic
Pigment class is the content of 30-45%.Heretofore described pigment be not limited in it is above several, can for paint field it is common
Perhaps inorganic pigment carries out selecting suitable pigment or several pigment is carried out group organic pigment with specific reference to the requirement of client
It closes.
Preferably, the granularity of the ultra-fine barium sulfate is 6000 mesh.
6000 mesh ultra-fine barium sulfates have extremely low oil absorption, and transparency is high, will not influence the viscosity and color development of mill base
Property, it under the action of high molecular weight block copolymer dispersing agent, can mutually be coated with pigment, improve mutual dispersion degree and face
The color developing of material, while making consistency with higher after coating film forming, improve the performances such as water resistance, the weatherability of coating.It is super
The granularity of thin barium sulfate is excessive to be easy to happen sedimentation, too small, cannot be fully dispersed, can not mutually coat between pigment.6000
Mesh ultra-fine barium sulfate can also absorb harm ray, improve the environmental-protecting performance of coating.
The present invention also provides the preparation methods of above-mentioned waterborne general color paste, at least include the following steps:
Step a, according to above-mentioned waterborne general color paste design proportion weigh each component, under stirring conditions, successively plus
Enter weighed deionized water, glycerol, dispersing agent, defoaming agent and preservative, is uniformly mixed, obtains the first mixed material；
Weighed pigment, ultra-fine barium sulfate and pH adjusting agent are added in first mixed material step b, and dispersion is mixed
It is even, thickener is added, adjusting viscosity is 3000-5000mPaS, obtains the second mixed material；
Second mixed material is ground to fineness≤7.5 μm by step c, and filtering obtains waterborne general color paste.
Above-mentioned preparation method is easy to operate, no complicated procedures of forming, at low cost without special equipment, is suitble to industrialization big
The aqueous color paste of large-scale production, preparation is suitable for various resin systems, and the stability of mill base is good, can store 1 year or more no
It will appear the phenomenon that point water sedimentation, and do not return thick, have a vast market foreground.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
The embodiment of the present invention provides a kind of waterborne general titanium white mill base, the raw material components including following parts by weight: go from
15 parts of sub- water, 4 parts of glycerol, 10 parts of dispersing agent, 0.1 part of defoaming agent, 0.5 part of pH adjusting agent, 1 part of thickener, 0.1 part of preservative,
4 parts of 70 parts of pigment and 6000 mesh ultra-fine barium sulfates.
The glycerol is 95% technical grade glycerol of Shandong Xu Hui Chemical Co., Ltd. production；The dispersing agent is that Germany finishes
Gram BYK-190；Defoaming agent is the BYK-024 of Germany Bi Ke；PH adjusting agent is the production of Nanjing Hai Zhilan Chemical Co., Ltd.
Dimethylethanolamine；Thickener is this 0620 polyurethane of the organically-modified hectorite clays of LT and Borchi Gel of hamming
Thick dose of mixture, wherein the mass ratio of organically-modified hectorite clays and polyurethane thickener is 1:3；The preservative is
The MERGAL K9N preservative of U.S.'s Troy；The pigment is Du Pont R706 rutile type titanium white；The ultra-fine sulfuric acid of 6000 mesh
Barium selects the 6000 mesh ultra-fine barium sulfate of modification of Shanghai Yuan Jiang Chemical Co., Ltd. production.
The preparation step of above-mentioned waterborne general color paste is as follows:
Step a weighs each component according to above-mentioned design proportion, under conditions of revolving speed is 500r/min, is added weighed
Deionized water and glycerol, stir 5min, be slowly added to dispersing agent stir to be completely dispersed uniformly, be then slowly added into defoaming agent and
Preservative adjusts revolving speed to 1000r/min, high speed dispersion 30 minutes, obtains the first mixed material；
Step b adjusts revolving speed to 500r/min, weighed titanium dioxide and 6000 mesh ultra-fine barium sulfates is added, adjusts revolving speed
To 1000r/min, high speed dispersion 30 minutes, pH adjusting agent is added, continues to stir 5 minutes, adjusting revolving speed to 800r/min, slowly
Thickener is added, adjusting viscosity is 3000mPaS, obtains the second mixed material；
Second mixed material is ground to fineness≤7.5 μm by step c, and filtering obtains waterborne general color paste.
Embodiment 2
A kind of waterborne general phthalocyanine blue mill base, the raw material components including following parts by weight: 25 parts of deionized water, glycerol 2
Part, 30 parts of dispersing agent, 0.3 part of defoaming agent, 0.1 part of pH adjusting agent, 1.3 parts of thickener, 0.3 part of preservative, 30 parts of pigment and
6000 5 parts of mesh ultra-fine barium sulfates.
The thickener be hamming this organically-modified hectorite clays of LT and 0620 polyurethane of Borchi Gel thickening
The mixture of agent, wherein the mass ratio of organically-modified hectorite clays and polyurethane thickener is 1:4；The pigment is Jiangsu
9631 phthalocyanine blue BGS of Shuan Le chemical color Co., Ltd；Remaining component is same as Example 1.
The preparation step of above-mentioned waterborne general color paste is as follows:
Step a weighs each component according to above-mentioned design proportion, under conditions of revolving speed is 500r/min, is added weighed
Deionized water and glycerol, stir 5min, be slowly added to dispersing agent stir to be completely dispersed uniformly, be then slowly added into defoaming agent and
Preservative adjusts revolving speed to 1000r/min, high speed dispersion 30 minutes, obtains the first mixed material；
Step b adjusts revolving speed to 500r/min, weighed titanium dioxide and 6000 mesh ultra-fine barium sulfates is added, adjusts revolving speed
To 1000r/min, high speed dispersion 30 minutes, pH adjusting agent is added, continues to stir 5 minutes, adjusting revolving speed to 800r/min, slowly
Thickener is added, adjusting viscosity is 4000mPaS, obtains the second mixed material；
Second mixed material is ground to fineness≤7.5 μm by step c, and filtering obtains waterborne general color paste.
Embodiment 3
A kind of waterborne general red slurry, the raw material components including following parts by weight: 30 parts of deionized water, 5 parts of glycerol, point
20 parts of powder, 0.5 part of defoaming agent, 1 part of pH adjusting agent, 1.5 parts of thickener, 0.5 part of preservative, 40 parts of pigment and 6000 mesh are ultra-fine
6 parts of barium sulfate.
The thickener be hamming this organically-modified hectorite clays of LT and 0620 polyurethane of Borchi Gel thickening
The mixture of agent, wherein the mass ratio of organically-modified hectorite clays and polyurethane thickener is 1:5；The pigment is section's Lay
Grace D3G is red；Remaining component is same as Example 1.
The preparation step of above-mentioned waterborne general color paste is as follows:
Step a weighs each component according to above-mentioned design proportion, under conditions of revolving speed is 500r/min, is added weighed
Deionized water and glycerol, stir 5min, be slowly added to dispersing agent stir to be completely dispersed uniformly, be then slowly added into defoaming agent and
Preservative adjusts revolving speed to 1000r/min, high speed dispersion 30 minutes, obtains the first mixed material；
Step b adjusts revolving speed to 500r/min, weighed titanium dioxide and 6000 mesh ultra-fine barium sulfates is added, adjusts revolving speed
To 1000r/min, high speed dispersion 30 minutes, pH adjusting agent is added, continues to stir 5 minutes, adjusting revolving speed to 800r/min, slowly
Thickener is added, adjusting viscosity is 5000mPaS, obtains the second mixed material；
Second mixed material is ground to fineness≤7.5 μm by step c, and filtering obtains waterborne general color paste.
Comparative example 1
This comparative example provides a kind of waterborne general color paste, the raw material components including following parts by weight: 15 parts of deionized water,
4 parts of ethylene glycol, 20 parts of dispersing agent, 0.1 part of defoaming agent, 0.5 part of pH adjusting agent, 1 part of thickener, 0.1 part of preservative, 50 parts of pigment
With 4 parts of 6000 mesh ultra-fine barium sulfate.
The specific trade mark of above-mentioned each component in addition to ethylene glycol is same as Example 1.
The preparation method of above-mentioned waterborne general color paste is same as Example 1, and details are not described herein again.
Comparative example 2
This comparative example provides a kind of waterborne general color paste, the raw material components including following parts by weight: 15 parts of deionized water,
4 parts of glycerol, 20 parts of dispersing agent, 0.1 part of defoaming agent, 0.5 part of pH adjusting agent, 1 part of thickener, 0.1 part of preservative, 50 parts of pigment and
8000 4 parts of mesh ultra-fine barium sulfates.
The specific trade mark of above-mentioned each component is same as Example 1.
The preparation method of above-mentioned waterborne general color paste is same as Example 1, and details are not described herein again.
Waterborne general color paste prepared by the present embodiment and comparative example is subjected to quality testing, test result according to professional standard
It is shown in Table 1.
Table 1
Note: opacity is that self-defining is divided into three-level, wherein 1 grade of covering effect is best, 3 grades of covering effects are worst；It is above-mentioned
Water resistance, resistance to acid and alkali and salt fog resistance are that aqueous color paste is added to the performance of coating in 2K PU system.
In order to compare with existing commercially available mill base, the commercially available C6 mill base of outsourcing and DRE2 red slurry carry out performance detection, survey
Method for testing is identical as the test method of above-described embodiment and comparative example, and test result is as shown in table 2.
Table 2
In conclusion waterborne general color paste good fluidity prepared by the present invention, color scale is small, the stability of mill base itself
Height, good with various coating system compatibilities, paint film has excellent surface effect after mixing with base paint, is free of VOC, safety
Environmental protection, practical value with higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of waterborne general color paste, which is characterized in that the raw material components including following parts by weight: 15-30 parts of deionized water,
2-5 parts of glycerol, 10-30 parts of dispersing agent, 0.1-0.5 parts of defoaming agent, 0.1-1 parts of pH adjusting agent, 1-1.5 parts of thickener, preservative
0.1-0.5 parts, 30-70 parts and ultra-fine barium sulfate 4-6 parts of pigment.
2. waterborne general color paste as described in claim 1, which is characterized in that the dispersing agent is the height with pigment affinity groups
Molecular weight block copolymer solution.
3. waterborne general color paste as described in claim 1, which is characterized in that the defoaming agent is organic silicon defoamer.
4. waterborne general color paste as described in claim 1, which is characterized in that the pH adjusting agent is dimethylethanolamine.
5. waterborne general color paste as described in claim 1, which is characterized in that the thickener is glutinous for organically-modified hectorite
The mixture of soil and polyurethane thickener, wherein the mass ratio of the organically-modified hectorite clays and polyurethane thickener is
1:3-5。
6. waterborne general color paste as described in claim 1, which is characterized in that the preservative is isothiazolinone preservative.
7. waterborne general color paste as described in claim 1, which is characterized in that the pigment is phthalocyanine blue, titanium dioxide, dark green
Or permanent violet.
8. waterborne general color paste as described in claim 1, which is characterized in that the granularity of the ultra-fine barium sulfate is 6000 mesh.
9. a kind of preparation method of waterborne general color paste, which is characterized in that at least include the following steps:
Step a weighs each component according to the design proportion of any one of the claim 1-8 waterborne general color paste, in stirring
Under the conditions of, weighed deionized water, glycerol, dispersing agent, defoaming agent and preservative are sequentially added, is uniformly mixed, obtains the first mixing
Material；
Weighed pigment, ultra-fine barium sulfate and pH adjusting agent are added in first mixed material step b, and dispersion mixes, and add
Enter thickener, adjusting viscosity is 3000-5000mPaS, obtains the second mixed material；
Second mixed material is ground to fineness≤7.5 μm by step c, and filtering obtains waterborne general color paste.
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| CN112159606A (en) * | 2020-09-25 | 2021-01-01 | 洛阳双瑞防腐工程技术有限公司 | Water-based nano universal color paste and preparation method thereof |
| CN112745526A (en) * | 2020-12-30 | 2021-05-04 | 福建宝利特科技股份有限公司 | Water-based leather coloring agent |
| CN112745718A (en) * | 2021-01-29 | 2021-05-04 | 南京信彩科技有限公司 | Energy-saving and environment-friendly water-based architectural coating color paste production process |
| CN113861763A (en) * | 2021-11-22 | 2021-12-31 | 珠海纳思达企业管理有限公司 | White color paste |
| CN114479575A (en) * | 2022-01-27 | 2022-05-13 | 东方雨虹民用建材有限责任公司 | Colored concrete interface agent and preparation method thereof |
| CN115340788A (en) * | 2021-09-26 | 2022-11-15 | 温岭市彩源颜料有限公司 | Water paint universal color paste and use method thereof |
| CN115678349A (en) * | 2022-11-14 | 2023-02-03 | 福建赛孔雀新材料科技有限公司 | Antibacterial, mildew-proof and odor-resistant white color paste and white paint digital ink |
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Application publication date: 20190426 |