CN107573778A - Low PVC dark color water paint and preparation method thereof - Google Patents
Low PVC dark color water paint and preparation method thereof Download PDFInfo
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- CN107573778A CN107573778A CN201710827701.6A CN201710827701A CN107573778A CN 107573778 A CN107573778 A CN 107573778A CN 201710827701 A CN201710827701 A CN 201710827701A CN 107573778 A CN107573778 A CN 107573778A
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Abstract
The present invention relates to low PVC dark color water paint and preparation method thereof, the water paint is by component A：Account for the high molecular dye graft of gross weight 30.0~38.0%, 2.5~8.5% polyether-modified dimethyl silicone polymer wetting agents, 6.0~15.0% high-molecular block copolymer dispersants, 8~15% acrylic resins, 12.0~22.0% water-miscible organic solvents, 0.8~3.0% functional aid and balance deionized water；Component B：Account for the acrylic resin of gross weight 46~53%, 0.6~1.0% polyether-modified dimethyl silicone polymer wetting agent, 0.3~0.6% polyether-modified Dimethicone Copolyol body levelling agent, 5.0~12.0% water-miscible organic solvents, 0.8~3.0% functional aid and balance deionized water.Low PVC dark color water paint prepared by the present invention has good tinctorial strength, color fastness to water and pliability.
Description
[technical field]
The present invention relates to a kind of low PVC dark color water paint and preparation method thereof.
[background technology]
The preparation of dark water paint needs to add substantial amounts of pigment, dyestuff, under high PVC, can just embody the effect of dark color
Fruit.But largely addition pigment, dyestuff can then influence the performances such as the water resistance, pliability, gloss of water paint, become paint film
Crisp, compatibility poor；And as the environmental consciousness of the development people of society is more and more stronger, dyestuff is largely added, not only not ring
Protect, and the patience of paint film can also decline.
If the structure of high molecular dye is improved its performance by us with the method for the monomer grafting of film-forming resin.With into
The high molecular dye of film resin grafting, makes chemical bonds, that is, improves the tinctorial strength of dyestuff, ensures color fastness to water again；Separately
One side acrylic resin does parent, ensure that compatibility, so as to improve pliability.
Generally if not by the way of the grafting, pigment with resin by simple physical mixed, in resin film forming
Afterwards, some pigment is bound on the surface of film, and now fastness to rubbing can be than relatively low, and uses dyestuff and film-forming resin
After learning bond conjunction, fastness can be especially high.
[content of the invention]
It is an object of the invention to provide one kind under low PVC to have brilliant idea intensity of colour, excellent compatibility, storage stability
Preferable environment-friendly water-based paint.
To overcome above-mentioned technological deficiency, the invention provides a kind of low PVC dark color water paint, its preparation method includes following
Step：
Step 1: high molecular dye graft is prepared, by the way that hydroxy acrylate grafting polymer dyestuff saponification is obtained；
Step 2: component A is prepared,
Acrylic resin, 2.5~8.5% polyether-modified dimethyl silicone polymer of component A gross weights 8~15% will be accounted for
Wetting agent, 6.0~15.0% high-molecular block copolymer dispersants, 12.0~22.0% water-miscible organic solvents are scattered in part
In deionized water, premix is obtained；
Under conditions of stirring, 30.0~38.0% high molecular dye grafts are added into the premix, are disperseed
0.8~3.0% functional aid is added after uniformly, regulation pH value is 8.0~9.0, obtains high molecular dye graft dispersion
Mixed liquor；
The high molecular dye graft dispersion mixed liquor is disperseed under 2000~3000rpm rotating speed, and
Remaining deionized water is added, obtains pre-grinding high molecular dye graft dispersion；
The pre-grinding high molecular dye graft dispersion is subjected to continuously grinding with zirconium oxide bead, to high molecular dye
After the average grain diameter of graft is no more than 1um, filtered, deaeration, obtain the component A, the surplus in said ratio is institute
The deionized water stated,
Step 3: component B is prepared,
46~53% acrylic resin, 0.6~1.0% polyether-modified poly dimethyl silicon of component B gross weights will be accounted for
Oxygen alkane wetting agent, 0.3~0.6% polyether-modified Dimethicone Copolyol body levelling agent, 5.0~12.0% water solubility have
Solvent, 0.8~3.0% functional aid, the deionized water of surplus are mixed to get component B,
Step 4: component A and component B are mixed
Component A and component B's uses magnitude relation B/A=(2.5~5)/1 times, and wherein acrylic resin is in terms of 40% solid content.
This method also has following optimize technique step：
The high molecular dye is selected from least one of polyamide, polyimide dyestuff dyestuff.
High-molecular block copolymer dispersant is at least one of BYK190, EFKA4585.
The functional aid is mildewproof sterilized dose and pH value regulator.
Described mildewproof sterilized dose of dosage is the 0.5~0.8% of high molecular dye weight, and pH value regulator dosage is high score
The 0.3~0.6% of sub- dyestuff weight.
Water-miscible organic solvent in component A is selected from least one of ethylene glycol, propane diols, polypropylene glycol.
The particle diameter of the zirconium oxide bead is 0.8~1.0mm.
Water-miscible organic solvent in component B is selected from least one of b propanol, n-butanol alcohol, dipropylene glycol methyl ether.
It is by the step of hydroxy acrylate grafting polymer dyestuff saponification：Equipped with condenser, agitator and thermometer
In three-necked flask, a certain amount of high molecular dye, butanone, hydroxy acrylate and BPO are added, is warming up to 80 DEG C, treats that constant temperature is anti-
It should terminate, the complete BPO of unreacted is washed to the greatest extent with acetone, deionized water is added, is heated to reflux, regulation pH value to 6.5~8,
Obtain the high molecular dye graft.
Compared with prior art, the present invention has following beneficial effect：
1st, the present invention using high molecular dye structure film-forming resin monomer grafting method, dyestuff color strength
Degree, ensure color fastness to water again；Another aspect acrylic resin does parent, ensure that compatibility, so as to improve pliability；
2nd, if not by the way of the grafting, pigment with resin by simple physical mixed, after resin film forming,
Some pigment be bound on the surface of film, now fastness to rubbing can be than relatively low, and uses dyestuff and film-forming resin chemistry
After bond is closed, fastness can be especially high.
[embodiment]
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
The monomer grafting of the structure acrylic resin of high molecular dye used in the component A of embodiment 1~6, reaction mechanism such as I
It is shown：
Wherein R be band-NH- groups compound, such as polyamide, polyimides, wherein n=2000-8000, preferably
3000-4000
Non-grafted high molecular dye used in the component A of comparative example 1~6；
Embodiment 1~6 is same example component B with component B used in comparative example 1~6.
The specific preparation process of embodiment 1~6 and comparative example 1~6 is as follows：
Component A：
First, the 20wt.% of deionized water total amount is reserved, by the 80wt.% of deionized water total amount, whole acrylic acid trees
Fat, whole polyether-modified dimethyl silicone polymer wetting agents, whole high-molecular block copolymers and whole water solubilitys have
Solvent disperses 15~20min in dispersion machine with 500~800r/min rotating speeds, obtains premix；
2nd, dispersing speed is adjusted to 300~400r/min, the high molecular dye graft of whole is added in step 1
In the premix of gained, whole functional aids is stirring evenly and then adding into, regulation high molecular dye graft dispersion is mixed
Between the pH to 8.0~9.0 for closing liquid, high molecular dye graft dispersion mixed liquor is obtained；
3rd, by gained high molecular dye graft dispersion mixed liquor in step 2 in 2000~3000r/min rotating speed
Under carry out scattered 30min, and the 20wt.% deionized waters reserved in step 1 are added in dispersion process, obtain pre-grinding height
Molecular dye graft dispersion；
4th, pre-grinding high molecular dye graft dispersion obtained by step 3 is ground in horizontal mill, ground
Grinding media is 0.8~1.0mm of particle diameter zirconium oxide bead, continuously grinding, is tested with laser particle instrument, when high molecular dye connects
Terminate to grind during the average grain diameter 1um of branch thing, obtain high molecular dye graft dispersion；
5th, high molecular dye graft dispersion obtained by step 4 is filtered, deaeration, obtains required component A.
6th, 46~53% acrylic resin, 0.6~1.0% polyether-modified poly dimethyl of component B gross weights will be accounted for
Polysiloxane wetting agents, 0.3~0.6% polyether-modified Dimethicone Copolyol body levelling agent, 5.0~12.0% water solubility
Organic solvent, 0.8~3.0% functional aid, the deionized water of surplus are disperseed in dispersion machine with 500~800r/min rotating speeds
15~20min, obtain premix；Water-miscible organic solvent therein is in b propanol, n-butanol alcohol, dipropylene glycol methyl ether
At least one,
7th, by premix obtained by step 6, between adjusting pH to 8.0~9.0, component B is obtained；
8th, in the component A for obtaining step 5, the component B obtained in proportion added to step 7, in dispersion machine with
500~800r/min rotating speeds disperse 15~20min, obtain a kind of low PVC dark color water paint.
The component of embodiment 1~6 composition is as shown in table 1.Wherein aqueous organic solvent propane diols, antimildew disinfectant are from dense
Spend the 1,2- benzisothiazole-3-ketones for 1.0wt.%, pH adjusting agent triethanolamine.
The composition of the embodiment 1~6 of table 1.
(unit：Mass percent)
Comparative example 1~6 is contrasted mainly for embodiment 1 and embodiment 6, and table 2 is that each component accounts in comparative example 1~6
The mass percent of high molecular dye total composition.Wherein aqueous organic solvent propane diols, antimildew disinfectant select concentration
For 1.0wt.% 1,2- benzisothiazole-3-ketones, pH adjusting agent triethanolamine.
Component A prepared by embodiment 1~6 and comparative example 1~6 method of testing is as follows：It is limited with Britain's Malvern instrument
The type laser particle size measurements of Mastersizer 3000 of the company component particle diameter distribution, D50 represents to survey particle in test result
In 50% the minimum grain size that can be transferred through of particle, average grain diameter is represented with D50；Component A and component B are pressed into PVC1.0 paintings,
Tinplate is sprayed at electrostatic gun, it is real according to GB/T9286-1998 paint and varnish, paint film lattice drawing after band drying varniss
Test and carry out adhesive force test, impact resistance test is carried out according to GB/T1732-1993 paint film impact resistances determination method, according to GB/T
1733-1993 paint film water resistances determination method carries out water resistance test, according to the measuring method of GB 11186-1989 paint film colors,
Aberration is beaten, judges △ L values and tinctorial strength, tinctorial strength is using embodiment as standard specimen 100%.Table 3 and table 4 are respectively embodiment 1
The result tested according to the above method of water paint under~the 6 and different PVC that prepare of comparative example 1~6.
The composition of the comparative example 1~6 of table 2.
(unit：Mass percent)
High molecular dye grafting water paint the performance test results prepared by the embodiment 1~6 of table 3.
Note：" 0 grade " represents preferable, and " 1 grade " represents general, and " 2 grades " expressions are poor.
High molecular dye prepared by the comparative example 1~6 of table 4. does not connect branch water paint the performance test results
Note：" 0 grade " represents preferable, and " 1 grade " represents general, and " 2 grades " expressions are poor.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. a kind of preparation method of low PVC dark color water paint, it is characterised in that comprise the following steps：
Step 1: high molecular dye graft is prepared, by the way that hydroxy acrylate grafting polymer dyestuff saponification is obtained；
Step 2: component A is prepared,
The acrylic resin of component A gross weights 8~15% will be accounted for, 2.5~8.5% polyether-modified dimethyl silicone polymer soaks
Agent, 6.0~15.0% high-molecular block copolymer dispersants, 12.0~22.0% water-miscible organic solvents be scattered in part go from
In sub- water, premix is obtained；
Under conditions of stirring, 30.0~38.0% high molecular dye grafts are added into the premix, are uniformly dispersed
0.8~3.0% functional aid is added afterwards, and regulation pH value is 8.0~9.0, obtains the mixing of high molecular dye graft dispersion
Liquid；
The high molecular dye graft dispersion mixed liquor is disperseed under 2000~3000rpm rotating speed, and added
Remaining deionized water, obtain pre-grinding high molecular dye graft dispersion；
The pre-grinding high molecular dye graft dispersion is subjected to continuously grinding with zirconium oxide bead, is grafted to high molecular dye
After the average grain diameter of thing is no more than 1um, filtered, deaeration, obtain the component A, the surplus in said ratio is described
Deionized water,
Step 3: component B is prepared,
46~53% acrylic resin, 0.6~1.0% polyether-modified dimethyl silicone polymer of component B gross weights will be accounted for
Wetting agent, 0.3~0.6% polyether-modified Dimethicone Copolyol body levelling agent, 5.0~12.0% it is water-soluble organic molten
Agent, 0.8~3.0% functional aid, the deionized water of surplus are mixed to get component B, Step 4: component A and component B is carried out
Mixing,
Component A and component B's uses magnitude relation B/A=(2.5~5)/1 times, and wherein acrylic resin is in terms of 40% solid content.
A kind of 2. preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that the high molecular dye
Select at least one of polyamide, polyimide dyestuff dyestuff.
3. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that the macromolecule is embedding
Section copolymer dispersant is at least one of BYK190, EFKA4585.
4. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that the feature helps
Agent is mildewproof sterilized dose and pH value regulator.
5. a kind of preparation method of low PVC dark color water paint as claimed in claim 3, it is characterised in that described mildewproof sterilized dose
Dosage be high molecular dye weight 0.5~0.8%, pH value regulator dosage for high molecular dye weight 0.3~
0.6%.
6. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that water-soluble in component A
Property organic solvent be selected from ethylene glycol, propane diols, at least one of polypropylene glycol.
7. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that the zirconium oxide bead
Particle diameter is 0.8~1.0mm.
8. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that water-soluble in component B
Property organic solvent be selected from b propanol, n-butanol, at least one of dipropylene glycol methyl ether.
9. a kind of preparation method of low PVC dark color water paint as claimed in claim 1, it is characterised in that by hydroxy acrylate
The step of grafting polymer dyestuff saponification is：Equipped with condenser, in the three-necked flask of agitator and thermometer, add a certain amount of
High molecular dye, butanone, hydroxy acrylate and BPO, 80 DEG C are warming up to, it is with acetone that unreacted is complete to the end of isothermal reaction
Full BPO is washed to the greatest extent, is added deionized water, is heated to reflux, regulation pH value to 6.5~8, obtains the high molecular dye grafting
Thing.
10. one kind uses low PVC dark color water paint made from claim 1~9 preparation method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710827701.6A CN107573778B (en) | 2017-09-14 | 2017-09-14 | Low PVC dark color water paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827701.6A CN107573778B (en) | 2017-09-14 | 2017-09-14 | Low PVC dark color water paint and preparation method thereof |
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| CN107573778A true CN107573778A (en) | 2018-01-12 |
| CN107573778B CN107573778B (en) | 2019-11-22 |
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| CN102732103A (en) * | 2012-07-23 | 2012-10-17 | 上海睿途新材料科技有限公司 | High-printing-property environment-friendly water-based back surface coating for packaging materials as well as preparation method thereof |
| CN103709834A (en) * | 2013-12-20 | 2014-04-09 | 苏州世名科技股份有限公司 | Phthalocyanine pigment water-based color paste for coloring synthetic leather and preparation method thereof |
| CN103725131A (en) * | 2013-12-30 | 2014-04-16 | 东莞光群雷射科技有限公司 | Gold stamping coating and preparation process thereof |
| CN104927064A (en) * | 2015-05-28 | 2015-09-23 | 齐鲁工业大学 | Preparation method for polymeric dye based on hyperbranched polyamine-ester |
| CN105220534A (en) * | 2015-10-26 | 2016-01-06 | 江南大学 | A kind of UV synchronously realizing textile coloration and anti-crease finishing solidifies the preparation method of azobenzene-polyurethane-base high molecular dye |
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2017
- 2017-09-14 CN CN201710827701.6A patent/CN107573778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732103A (en) * | 2012-07-23 | 2012-10-17 | 上海睿途新材料科技有限公司 | High-printing-property environment-friendly water-based back surface coating for packaging materials as well as preparation method thereof |
| CN103709834A (en) * | 2013-12-20 | 2014-04-09 | 苏州世名科技股份有限公司 | Phthalocyanine pigment water-based color paste for coloring synthetic leather and preparation method thereof |
| CN103725131A (en) * | 2013-12-30 | 2014-04-16 | 东莞光群雷射科技有限公司 | Gold stamping coating and preparation process thereof |
| CN104927064A (en) * | 2015-05-28 | 2015-09-23 | 齐鲁工业大学 | Preparation method for polymeric dye based on hyperbranched polyamine-ester |
| CN105220534A (en) * | 2015-10-26 | 2016-01-06 | 江南大学 | A kind of UV synchronously realizing textile coloration and anti-crease finishing solidifies the preparation method of azobenzene-polyurethane-base high molecular dye |
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| CN107573778B (en) | 2019-11-22 |
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