CN107573823A - A kind of preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin - Google Patents
A kind of preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin Download PDFInfo
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Abstract
The present invention relates to the preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin, comprise the following steps：The aqueous acrylic modified saturated polyester resin in part is taken, sequentially adds nertralizer, deionized water and wetting dispersing agent, defoamer and color stuffing thereto, with 300~3500r/min rotating speed, is discharged after being dispersed with stirring 10~30min；Below 60 DEG C, grind 24 times, be less than 15 μm to fineness；The aqueous acrylic modified saturated polyester resin in part is added, and adds 10~30min of nertralizer and cosolvent stirring；Deionized water is continuously added, amino resins is added after stirring, is again stirring for and adds acidic catalyst；Moistening flatting agent is sequentially added, adhesion promoter, defoamer, wax emulsion and auxiliary rheological agents stir, discharged with screen filtration.The steel band coating prepared using preparation method provided by the invention has the characteristic of excellent stability, high solid, low viscosity and low VOC content.
Description
Technical field
The invention belongs to water paint field, and in particular to a kind of steel band property of water-bearing acrylic acid modified saturated polyester resin
Coating preparation method.
Background technology
Solvent based coating mainly is used in the market, that is, paints and bailing band ground is protected, such product
Carrier is volatile organic solvent, and pollution, harm can be produced to environment, health to air volatilization in film forming procedure.
Film forming matter of the water-base resin as water paint, consolidating for its aqueous dispersion contains, viscosity and VOC content are to paint film
Performance and to influence environment play a decisive role, so water paint as a kind of low VOC content coating by more and more extensive
Application.But water paint is because its construction is extremely difficult to the high-decoration effect of dissolubility type admittedly containing relatively low.
On the other hand, there is saturated polyester high glaze, high plumpness, excellent weatherability to be applied to medium-to-high grade amino-stoving varnish
With in polyurethane finish.But current water-based saturated polyester resin product is solid high containing low, facile hydrolysis, VOC content in the presence of construction
Defect, it is extremely difficult to the high-decoration effect reached after the construction of solvent-borne type large arch dam saturated polyester resin.
The content of the invention
In consideration of it, the invention provides a kind of system of the coating of the steel band of property of water-bearing acrylic acid modified saturated polyester resin
Preparation Method, it is intended to solve the problems, such as that steel band paint stability is poor in the prior art, viscosity is high, VOC content is higher.
The preparation method of the steel band provided by the invention coating of property of water-bearing acrylic acid modified saturated polyester resin, including with
Lower step：
(1) take the aqueous acrylic modified saturated polyester resin in part, sequentially add thereto part nertralizer, partly go from
Sub- water and appropriate wetting dispersing agent, stirring；Then part defoamer and color stuffing are added, with 300~3500r/min rotating speed,
Discharged after being dispersed with stirring 10~30min；Preferably, the rotating speed is 800~1200r/min, mixing time is preferably 10~
15min。
(2) by the resin dispersion pigment obtained by step (1) below 60 DEG C, grind 2-4 times, be less than 15 μm to fineness；It is excellent
Selection of land, temperature are 20~26 DEG C.
(3) the aqueous acrylic modified saturated polyester resin in part is added in the color stuffing obtained into the step (2),
And 10~30min of part nertralizer and cosolvent stirring is added thereto；Mixing time can be preferably 10-15min.
(4) portions of de-ionized water is continuously added, is stirring evenly and then adding into amino resins, is again stirring for uniformly and adds acidity
Catalyst is stirred；
(5) into above-mentioned product after sequentially add moistening flatting agent, adhesion promoter, defoamer, wax emulsion and rheology
Auxiliary agent stirs, and is discharged with screen filtration, you can obtains the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
Preferably, the screen filtration of 50~300 mesh can be used to discharge.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, press
Parts by weight meter, each component parts by weight are 15~65 parts of water soluble acrylic acid saturated polyester resin in raw material, pH nertralizer 1-5 parts,
Deionized water 0-85 parts, dispersion moisture agent 0.05-2 parts, defoamer 0-2 parts, color stuffing 0-30 parts, amino resins 5-15 parts, stream
Flat wetting agent 0.2-1 parts, adhesion promoter 0.5-5 parts, cosolvent 0.5-15 parts, acidic catalyst 0.05-1 parts, aqueous flow
Become auxiliary agent 0.1-2 parts, wax emulsion 0-8 parts.
Preferably, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, each group
Point parts by weight be：20~50 parts of water soluble acrylic acid saturated polyester resin, pH nertralizer 1-4 parts, deionized water 10-60 parts,
Dispersion moisture agent 0.08-0.7 parts, defoamer 0.02-0.3 parts, color stuffing 0-25 parts, amino resins 5-11 parts, levelling wetting agent
0.2-0.8 parts, adhesion promoter 0.7-2.1 parts, cosolvent 0.5-10 parts, acidic catalyst 0.09-0.9 parts, water-based rheology
Auxiliary agent 0.1-1.2 parts, wax emulsion 4-7 parts.
Above-mentioned water-borne acrylic acid modified polyester resin is selected from the aqueous acrylic modified polyester tree of Beijing sunlight remittance moral exploitation
Fat.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State one or more of the amino resins in Lauxite, melamine resin, aniline-formaldehyde resin.For example, the U.S.
At least one of 303,717, the 325 of Qing Te companies and the MR625 of Taiwan Changchun chemical company.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State nertralizer be selected from triethylamine, 2-amino-2-methyl-1-propanol, triethanolamine, diethanol amine, N, N- dimethylethanolamines and
One or more in ammoniacal liquor.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
It is anion or nonionic surfactant to state dispersion moisture agent, and the preferably for example German enlightening of organic silicon anionic surfctant is high
The tego760w of company, the BYK190 of German Bi Ke companies, Lubrizol Corp. of the U.S. lubrizol27000 in one kind or several
Kind.
The levelling wetting agent is selected from organic-silicon-modified polysiloxanes or polyacrylate, such as German Di Gao companies
Tego4100, German Bi Ke companies BYK346 and BYK333 in one or more.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State defoamer and be selected from polyether siloxane copolymer or mineral oils.
Preferably, the defoamer is selected from tego810, German the Bi Ke public affairs of for example German Di Gao companies of organic silicon defoamer
The BYK021 of department, the BYK024 of German Bi Ke companies, German Di Gao companies tego901w in one or more.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State color stuffing be selected from phthalocyanine blue, dark green, permanent yellow, iron oxide red, iron oxide yellow, iron oxide black, trbasic zinc phosphate, titanium dioxide,
One or more in calcium carbonate, barium sulfate, aluminum oxide, silica, carbon black and metal dust.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State the one kind of adhesion promoter in resinae, silane coupler class or titanate coupling agent class.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State cosolvent and be selected from propylene glycol monobutyl ether, isopropanol, isobutanol, n-butanol, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, diethyl two
One or more in alcohol butyl ether and dipropylene glycol methyl ether.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State acidic catalyst and be selected from p-methyl benzenesulfonic acid class catalyst, preferably be selected from the CYCAT 4040,500 or 600 of Qing Te companies of the U.S.
One kind.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
State water-based auxiliary rheological agents and be selected from polyurethane association type or the swollen acrylic compounds of alkali soluble, such as the gel0620 of OMG companies, the bright icepro of Germany
The pur62 of company, the 8W of Rhom and Hass.
Further, in preparation method of the above-mentioned steel band with the coating of property of water-bearing acrylic acid modified saturated polyester resin, institute
It is nonionic emulsion to state wax emulsion, such as the nonionic emulsion that content of polyethylene wax is 30~35%.
When it is implemented, preparation method provided by the invention comprises the following steps：
(1) color stuffing is pre-dispersed：Take 4~15 parts of aqueous acrylic modified saturated polyester resins, thereto add 0.4~
2 parts of nertralizers and 0~30 part of deionized water, stir；Then 0.05~2 part of wetting dispersing agent is added, is stirred；Finally
0~0.2 part of defoamer and 0~30 part of color stuffing are added, using shearing dispersion machine, with 300~3500r/min rotating speed, is stirred
Discharged after mixing scattered 10~15min, after the step, by the pigment wetting in pre-dispersed slurries.
(2) grind：Resin dispersion pigment obtained by step (1) is put into horizontal sand mill, control sand mill flow and
Temperature, below 60 DEG C of keeping temperature, grinds 2-4 times, is less than 15 μm to fineness；After the step, pass through the shearing of sand mill
Power arrives simple grain by pigment is fully dispersed.
(3) 15~45 parts of aqueous acrylic modified saturated polyesters are added in the simple grain color stuffing obtained into step (2)
Resin, and 0.6~3 part of nertralizer and 0.5~10 part of 10~15min of cosolvent stirring are added thereto；
(4) 0~55 part of deionized water is continuously added, is stirring evenly and then adding into 5~15 parts of amino resins, is again stirring for uniformly
And add 0.05~1 part of acidic catalyst and be stirred；
(5) 0.2~1 part of moistening flatting agent is sequentially added after step (4) stirs, 0.5~5 part of adhesive force promotes
Agent, 0.02~2 part of defoamer, 0~8 part of wax emulsion and 0.1~2 part of auxiliary rheological agents stir, with 50~300 mesh sieve net filtrations
Discharging, you can obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.Paint solution is adjusted by step (3)-(5)
Consolidate contain, the performance such as viscosity, VOC content to reduce the difficulty of construction of coating, coating is possessed the protection to steel, antirust and anti-
The premium properties such as corruption and the VOC content for reducing coating discharge.
Compared with prior art, the beneficial effects of the present invention are water-based third prepared using the preparation method of the present invention
Olefin(e) acid modified saturated polyester coating has the characteristic of excellent stability, high solid, low viscosity and low VOC content, not only
Difficulty of construction is reduced, reduces the murder by poisoning to workmen and environment, and has reached only solvent-borne type saturated polyester coating
Full, high glaze the effect that can be only achieved.In addition, coating property provided by the invention meets the protection for steel, antirust
With anti-corrosion etc., further, the various medium-resistances of the coating are excellent, the performance such as hardness, impact, flexible, adhesive force also ten
Sub-argument is thought.
Embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
(1) the aqueous acrylic modified saturated polyester resins of 7.6g are taken, thereto add 0.5g N, N dimethyl monoethanolamine and
14.4g deionized waters, stir；Then 0.1gLubrizol27000 is added, is stirred；4.1g trbasic zinc phosphates are finally added,
Using shearing dispersion machine, with 300~800r/min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester trees of 23.9g are added in the simple grain color stuffing obtained into step (2)
Fat, and 1.7g N are added thereto, N dimethyl monoethanolamine and 0.7g ethylene glycol monobutyl ethers stir 10~15min；
(4) 31.6g deionized waters are continuously added, special 717 amino resins of 9.4g cyanogen is stirring evenly and then adding into and is stirred；
(5) sequentially add 0.2g moistening flatting agents BYK333 after step (4) stirs and 0.3gBYK346,0.8g are attached
Adhesion promoter H772,4.2g WE6 wax emulsions and 0.3g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen mistakes
Filter out material, you can obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 1 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.5 |
| Viscosity (rotation viscometer, KU) | 122 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 1 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 2
(1) the aqueous acrylic modified saturated polyester resins of 8.6g are taken, thereto add 0.9g N, N dimethyl monoethanolamine and
25.9g deionized waters, stir；Then 0.2gLubrizol27000,0.2gtego760w and 0.1g Tego810 are added,
Stir；24.2g iron oxide reds are finally added, using shearing dispersion machine, with 800~1200r/min rotating speed, stirring point
Discharged after dissipating 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
25 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester trees of 17.3g are added in the simple grain color stuffing obtained into step (2)
Fat, and 1.4g NN dimethylethanolamines and 2.3g ethylene glycol monobutyl ethers and the stirring of 3.1g diethylene glycol monobutyl ethers are added thereto
10~15min；
(4) 7.8g deionized waters are continuously added, 5.2g cyanogen spy's 303LF amino resins is stirring evenly and then adding into and is again stirring for
It is even and add 0.6g acidic catalysts and be stirred；
(5) 0.3g moistening flatting agents tego4100,1.3g adhesion promoter is sequentially added after step (4) stirs
H772 and 0.4g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can obtain steel band with aqueous
The coating of property acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 2 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.3 |
| Viscosity (rotation viscometer, KU) | 110 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 2 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 3
(1) the aqueous acrylic modified saturated polyester resins of 8.9g are taken, thereto add 0.6g N, N dimethyl monoethanolamine and
16.8g deionized waters, stir；Then 0.4gLubrizol27000 is added, is stirred；Finally add 3.2g carbon blacks and
2g trbasic zinc phosphates, using shearing dispersion machine, with 1200~1500r/min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
24 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester trees of 27.9g are added in the simple grain color stuffing obtained into step (2)
Fat, and 2g N are added thereto, N dimethyl monoethanolamine and 0.8g ethylene glycol monobutyl ethers stir 10~15min；
(4) special 717 amino resins of 11g cyanogen are stirring evenly and then adding into be stirred；
(5) sequentially add 0.4g moistening flatting agents BYK346 after step (4) stirs and 0.2gBYK333,0.9g are attached
Adhesion promoter H772,6.8g WE6 wax emulsions and 0.4g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen mistakes
Filter out material, you can obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 3 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.7 |
| Viscosity (rotation viscometer, KU) | 125 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 3 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 4
(1) the aqueous acrylic modified saturated polyester resins of 9.5g are taken, thereto add 0.5g N, N dimethyl monoethanolamine and
23.2g deionized waters, stir；Then 0.2gLubrizol27000,0.2gtego760w and 0.1g Tego810 are added,
Stir；4.6g iron oxide reds and 4.6g barium sulfate precipitates are finally added, using shearing dispersion machine, with 1500~2000r/
Min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 26 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester trees of 30.6g are added in the simple grain color stuffing obtained into step (2)
Fat, and 1.5g N, N dimethyl monoethanolamine and 1g ethylene glycol monobutyl ethers and 3.8g diethylene glycol monobutyl ethers stirring 10 are added thereto
~15min；
(4) 10.4g deionized waters are continuously added, 8g cyanogen spy's 303LF amino resins is stirring evenly and then adding into and is again stirring for
It is even and add 0.6g acidic catalysts and be stirred；
(5) 0.5g moistening flatting agents BYK346,1.2g adhesion promoter is sequentially added after step (4) stirs
H772 and 0.2g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can obtain steel band with aqueous
The coating of property acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 4 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.6 |
| Viscosity (rotation viscometer, KU) | 115 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 4 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 5
(1) the aqueous acrylic modified saturated polyester resins of 10.9g are taken, thereto add 1.1g N, N dimethyl monoethanolamine and
27.2g deionized waters, stir；Then 0.3gLubrizol27000,0.3g tego760w and 0.1g Tego810 are added,
Stir；4.2g dark greens, 3.9g iron oxide yellows, 3g permanent yellows, 1.9g titanium dioxides and 2.7g barium sulfate precipitates are finally added,
Using shearing dispersion machine, with 300~3500r/min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester trees of 21.8g are added in the simple grain color stuffing obtained into step (2)
Fat, and 1.7g N, N dimethyl monoethanolamine and 2.9g ethylene glycol monobutyl ethers and the stirring of 3.9g diethylene glycol monobutyl ethers are added thereto
10~15min；
(4) 3.3g deionized waters are continuously added, special 717 amino resins of 6.5g cyanogen is stirring evenly and then adding into and is again stirring for uniformly
And add 0.8g acidic catalysts and be stirred；
(5) sequentially add 0.3g tego4100 after step (4) stirs, 1.6g adhesion promoters H772 and
0.5g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can obtain steel band property of water-bearing propylene
The coating of sour modified saturated polyester resin.
The performance parameter for the coating that embodiment 5 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.7 |
| Viscosity (rotation viscometer, KU) | 128 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 5 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 6
(1) the aqueous acrylic modified saturated polyester resins of 4g are taken, add 2g N thereto, N dimethyl monoethanolamine and 10g are gone
Ionized water, stir；Then 0.05g BYK190 and 0.02g Tego810 are added, are stirred；Using shearing scattered
Machine, with 300~3500r/min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester resins of 11g are added in the simple grain color stuffing obtained into step (2),
And 5g isopropanols and 3g ethylene glycol monobutyl ethers and 10~15min of 7g propylene glycol monobutyl ethers stirring are added thereto；
(4) special 717 amino resins of 5g cyanogen are stirring evenly and then adding into be again stirring for uniformly and add 0.9g acidic catalysts to enter
Row stirring；
(5) sequentially add 0.2g tego4100 after step (4) stirs, 0.5g adhesion promoters H772 and
0.1g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can obtain steel band property of water-bearing propylene
The coating of sour modified saturated polyester resin.
The performance parameter for the coating that embodiment 6 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.2 |
| Viscosity (rotation viscometer, KU) | 112 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 6 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 7
(1) the aqueous acrylic modified saturated polyester resins of 5g are taken, 1g triethylamines and 30g deionized waters is added thereto, stirs
Mix uniformly；Then 2gLubrizol27000, tego760w and Tego810 mixture are added, is stirred；Finally add 5g
Iron oxide red, 15g dark greens, 10g barium sulfate precipitates, using shearing dispersion machine, with 3000~3500r/min rotating speed, stir
Discharged after mixing scattered 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester resins of 15g are added in the simple grain color stuffing obtained into step (2),
And thereto add 1g NN dimethylethanolamines and the mixture of 8g ethylene glycol monobutyl ethers and diethylene glycol monobutyl ether stirring 10~
15min；
(4) 30g deionized waters are continuously added, 15g cyanogen spy's 303LF amino resins is stirring evenly and then adding into and is again stirring for uniformly
And add 0.09g acidic catalysts and be stirred；
(5) 1g moistening flatting agents BYK346,5g adhesion promoter H772 is sequentially added after step (4) stirs,
7g WE6 wax emulsions and 2g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can obtain steel band
With the coating of property of water-bearing acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 7 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.4 |
| Viscosity (rotation viscometer, KU) | 126 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 7 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 8
(1) the aqueous acrylic modified saturated polyester resins of 20g are taken；Thereto add 2g ammoniacal liquor and
0.02gLubrizol27000, stir；5g carbon blacks, 5g silica, 5g titanium dioxides are added again, using shearing dispersion machine,
With 3200~3400r/min rotating speed, discharged after being dispersed with stirring 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester resins of 30g are added in the simple grain color stuffing obtained into step (2),
And 2g 2-amino-2-methyl-1-propanols and the mixture of 0.5g ethylene glycol monobutyl ethers and diethylene glycol monobutyl ether are added thereto
Stir 10~15min；
(4) 11g cyanogen spy's 303LF amino resins is stirring evenly and then adding into be again stirring for uniformly and add 0.05g acidic catalysts
Agent is stirred；
(5) 0.8g moistening flatting agents BYK346,0.7g adhesion promoter is sequentially added after step (4) stirs
H772,8g WE6 wax emulsions and 1.2g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, you can
Obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 8 obtains is as follows：
| Gu contain (120 DEG C, 30min, %) | 46.8 |
| Viscosity (rotation viscometer, KU) | 127 |
| Fineness (Hegman grind gage, um) | <15 |
After the coating that embodiment 8 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Embodiment 9
(1) the aqueous acrylic modified saturated polyester resins of 20g are taken, add 2g triethanolamines and 30g deionized waters thereto,
Stir；Then 3gLubrizol27000, tego760w and Tego810 mixture are added, is stirred；Finally add
5g iron oxide yellows, 15g aluminum oxide, 5g barium sulfate precipitates, using shearing dispersion machine, with 3400~3500r/min rotating speed, stir
Discharged after mixing scattered 10~15min；
(2) the resin dispersion pigment obtained by step (1) is put into horizontal sand mill, controls the flow and temperature of sand mill,
Below 60 DEG C of keeping temperature, grind 2-4 times, be less than 15 μm to fineness；
(3) the aqueous acrylic modified saturated polyester resins of 45g are added in the simple grain color stuffing obtained into step (2),
And 10~15min of 3g diethanol amine and the stirring of the mixture of 10g ethylene glycol monobutyl ethers and diethylene glycol monobutyl ether is added thereto；
(4) 55g deionized waters are continuously added, 8g cyanogen spy's 303LF amino resins is stirring evenly and then adding into and is again stirring for uniformly
And add 1g acidic catalysts and be stirred；
(5) 0.6g moistening flatting agents BYK346,2.1g adhesion promoter is sequentially added after step (4) stirs
H772,4.2g WE6 wax emulsions and 0.2g gel0620 auxiliary rheological agents stir, with 50~300 eye mesh screen filtering and dischargings, i.e.,
It can obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
The performance parameter for the coating that embodiment 9 obtains is as follows：
After the coating that embodiment 9 obtains is toasted into 20-40min at 120-180 DEG C, detected, it is as a result as follows：
Wherein, detection method and instrument such as following table used by every detection project in above-described embodiment 1-9：
Claims (10)
- A kind of 1. steel band preparation method of the coating of property of water-bearing acrylic acid modified saturated polyester resin, it is characterised in that including Following steps：(1) the aqueous acrylic modified saturated polyester resin in part is taken, sequentially adds part nertralizer, portions of de-ionized water thereto With appropriate wetting dispersing agent, stirring；Then part defoamer and color stuffing are added, with 300~3500r/min rotating speed, stirring Discharged after scattered 10~30min；(2) by the resin dispersion pigment obtained by step (1) below 60 DEG C, grind 2-4 times, be less than 15 μm to fineness；(3) the aqueous acrylic modified saturated polyester resin in part is added in the color stuffing obtained into the step (2), and to Wherein add part nertralizer and cosolvent stirs 10~30min；(4) portions of de-ionized water is continuously added, is stirring evenly and then adding into amino resins, is again stirring for uniformly and adds acidic catalyst Agent is stirred；(5) into above-mentioned product after sequentially add moistening flatting agent, adhesion promoter, defoamer, wax emulsion and auxiliary rheological agents Stir, discharged with screen filtration, you can obtain the coating of steel band property of water-bearing acrylic acid modified saturated polyester resin.
- 2. the preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin as claimed in claim 1, its It is characterised by, the rotating speed in the step (1) is 800~1200r/min.
- 3. the preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin as claimed in claim 1, its It is characterised by, the temperature in the step (2) is 20~26 DEG C.
- 4. the preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin as claimed in claim 1, its It is characterised by,The time that is dispersed with stirring in the step (1) is 10-15min；And/orMixing time in the step (3) is 10-15min.
- 5. the preparation method of the steel band coating of property of water-bearing acrylic acid modified saturated polyester resin as claimed in claim 1, its It is characterised by, in the step (5), is discharged using the screen filtration of 50~300 mesh.
- 6. coating of the steel band with property of water-bearing acrylic acid modified saturated polyester resin as any one of claim 1 to 5 Preparation method, it is characterised in that count in parts by weight, each component parts by weight are water soluble acrylic acid saturated polyester resin 15 in raw material ~65 parts, pH nertralizer 1-5 parts, deionized water 0-85 parts, dispersion moisture agent 0.05-2 parts, defoamer 0-2 parts, color stuffing 0-30 Part, amino resins 5-15 parts, levelling wetting agent 0.2-1 parts, adhesion promoter 0.5-5 parts, cosolvent 0.5-15 parts, acidity are urged Agent 0.05-1 parts, water-based auxiliary rheological agents 0.1-2 parts, wax emulsion 0-8 parts.
- 7. coating of the steel band with property of water-bearing acrylic acid modified saturated polyester resin as any one of claim 1 to 5 Preparation method, it is characterised in that the amino resins is in Lauxite, melamine resin, aniline-formaldehyde resin One or more；The color stuffing is selected from phthalocyanine blue, dark green, permanent yellow, iron oxide red, iron oxide yellow, iron oxide black, trbasic zinc phosphate, dioxy Change the one or more in titanium, calcium carbonate, barium sulfate, aluminum oxide, silica, carbon black and metal dust.
- 8. coating of the steel band with property of water-bearing acrylic acid modified saturated polyester resin as any one of claim 1 to 5 Preparation method, it is characterised in that the nertralizer is selected from triethylamine, 2-amino-2-methyl-1-propanol, triethanolamine, diethanol Amine, N, the one or more in N- dimethylethanolamines and ammoniacal liquor；The cosolvent be selected from propylene glycol monobutyl ether, isopropanol, isobutanol, n-butanol, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, One or more in butyl and dipropylene glycol methyl ether；The acidic catalyst is catalyzed selected from p-methyl benzenesulfonic acid class Agent；The water-based auxiliary rheological agents are selected from polyurethane association type or the swollen acrylic compounds of alkali soluble；The wax emulsion is nonionic breast Liquid.
- 9. coating of the steel band with property of water-bearing acrylic acid modified saturated polyester resin as any one of claim 1 to 5 Preparation method, it is characterised in that the dispersion moisture agent is anion or nonionic surfactant；The levelling wetting agent choosing From organic-silicon-modified polysiloxanes or polyacrylate.
- 10. coating of the steel band with property of water-bearing acrylic acid modified saturated polyester resin as any one of claim 1 to 5 Preparation method, it is characterised in that the defoamer is selected from polyether siloxane copolymer or mineral oils；The adhesion promoter is selected from resinae, silane coupler class or titanate coupling agent class.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101575479A (en) * | 2009-06-02 | 2009-11-11 | 华南理工大学 | Mono-component aqueous metal baking paint and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101575479A (en) * | 2009-06-02 | 2009-11-11 | 华南理工大学 | Mono-component aqueous metal baking paint and preparation method thereof |
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