CN109868000A - A kind of anti-dry spot additive and preparation method thereof and the application in aqueous cathode electrodip painting - Google Patents
A kind of anti-dry spot additive and preparation method thereof and the application in aqueous cathode electrodip painting Download PDFInfo
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- 239000000654 additive Substances 0.000 title claims abstract description 40
- 230000000996 additive effect Effects 0.000 title claims abstract description 39
- 238000010422 painting Methods 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title description 7
- -1 alkyl imidazoline Chemical compound 0.000 claims abstract description 35
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 35
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 34
- 150000002334 glycols Chemical class 0.000 claims abstract description 22
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 3
- 150000002009 diols Chemical class 0.000 claims description 3
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 150000001345 alkine derivatives Chemical class 0.000 claims 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims 1
- 238000001962 electrophoresis Methods 0.000 abstract description 13
- 239000011248 coating agent Substances 0.000 description 19
- 238000000576 coating method Methods 0.000 description 19
- 239000003973 paint Substances 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- AMHJPOQBCIJXAJ-UHFFFAOYSA-N 2,5,8,11-tetramethyldodec-6-yne Chemical compound CC(C)CCC(C)C#CC(C)CCC(C)C AMHJPOQBCIJXAJ-UHFFFAOYSA-N 0.000 description 2
- DGVBIYSCKYFPHZ-UHFFFAOYSA-N N1=CC=CC2=CC=CC=C12.OCCC=1NC=CN1 Chemical compound N1=CC=CC2=CC=CC=C12.OCCC=1NC=CN1 DGVBIYSCKYFPHZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000001033 ether group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- FKJVXCCFZNLKSJ-UHFFFAOYSA-N 3,6-dimethyloct-4-yne Chemical compound CCC(C)C#CC(C)CC FKJVXCCFZNLKSJ-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NPAKNKYSJIDKMW-UHFFFAOYSA-N carvedilol Chemical compound COC1=CC=CC=C1OCCNCC(O)COC1=CC=CC2=NC3=CC=C[CH]C3=C12 NPAKNKYSJIDKMW-UHFFFAOYSA-N 0.000 description 1
- 229960004195 carvedilol Drugs 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- NGDPCAMPVQYGCW-UHFFFAOYSA-N dibenzothiophene 5-oxide Chemical compound C1=CC=C2S(=O)C3=CC=CC=C3C2=C1 NGDPCAMPVQYGCW-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The invention discloses a kind of anti-dry spot additives, alkyl imidazoline including 10-50 parts by weight, the acetylenic diols compound of 10-50 parts by weight, the acetylenic glycols polyoxyethylene ether of 10-50 parts by weight, the organosilicone polyoxyethylene ether of 0-30 parts by weight and the alkanolamide class compound of 0-30 parts by weight, this additive is used in commercially available commodity cathode electrophoresis dope, can be to avoid the generation of dry spot.
Description
Technical field
The present invention relates to chemical assistant technical fields, more particularly to a kind of anti-dry spot additive and its in aqueous cathode electricity
Application in swimming paint.
Background technique
Electrophoretic painting is one of coating metal workpiece most efficient method, electrophoretic coating as a kind of novel low pollution,
The energy, resource-saving, the coating for acting as protection and anticorrosive property are saved, automobile, automatic vehicle, electromechanics, household electrical appliances etc. five are widely used in
The coating of golden part.Electrophoretic coating can be divided into anode electrophoresis dope and cathode electrophoresis dope by by painting piece pole, and ability cathode electrophoresis applies
Material is divided into one-component electrophoretic coating and two-component electrophoretic coating.
Cathode electrodip painting when in use, coating link technique are as follows: electrophoresis → washing → baking and curing → subsequent technique, in reality
Border production process is it is possible that such problems: after workpiece takes out from electrophoresis tank, sometimes due to the operation reason of production line
The case where causing workpiece to hang waiting in air, cannot being washed immediately.And in this waiting process, due to wet film
There are inhomogeneities for performance of keeping humidity, and lacquer painting is caused locally to dehydrate, and the surface tension in washing at drying goes out in this way
Existing difference, repels the wetting action of water.So spot or patch phenomenon are shown in appearance herein, especially to large-scale workpiece
For, since its surface area is larger, the probability for dry spot occur can be relatively high.
Summary of the invention
The purpose of the present invention is dry spot is easy to appear between electrophoresis and washing for workpiece existing in the prior art
Problem, and a kind of anti-dry spot additive is provided.
It is a further object to provide a kind of application of anti-dry spot additive in aqueous cathode electrodip painting,
The additive can be used for can achieve expected improvement in commercially available commodity cathode electrophoresis dope.
The technical solution adopted to achieve the purpose of the present invention is:
A kind of anti-dry spot additive, the alkyl imidazoline including 10-50 parts by weight, the acetylenic diols of 10-50 parts by weight
Close object, the acetylenic glycols polyoxyethylene ether of 10-50 parts by weight, the organosilicone polyoxyethylene ethers of 0-30 parts by weight and 0-30 parts by weight
Alkanolamide class compound, wherein
The molecular structural formula of the alkyl imidazoline are as follows:
R1For C11-17Hydrocarbon chain, X OH；
The molecular structural formula of the acetylenic diols compound are as follows:
R2For C2-5Saturated hydrocarbon chains；
The molecular structural formula of the acetylenic glycols polyoxyethylene ether are as follows:
M+n=1-35；R3For C3-5Saturated hydrocarbon chains；R4For H or CH3；
The molecular structural formula of the organosilicone polyoxyethylene ether are as follows:
A, b are not 0, R5For H or CH3；
The molecular structural formula of the alkanolamide class compound are as follows:
R6For C11-17Hydrocarbon chain；X is OH.
In the above-mentioned technical solutions, the parts by weight of the alkyl imidazoline are 10-30, the acetylenic diols compound
Parts by weight are 12.5-35, and the parts by weight of the acetylenic glycols polyoxyethylene ether are 10-20, the organosilicone polyoxyethylene ether
Parts by weight be 1-3, the parts by weight of the alkanolamide class compound are 2-6.
It in the above-mentioned technical solutions, further include the solvent and/or 0-35 weight of 0-40 parts by weight in the anti-dry spot additive
Measure the water of part.
In the above-mentioned technical solutions, the anti-dry spot additive is prepared by the following method:
Step 1, under the conditions of 80-90 DEG C, in proportion by the alkanolamide class compound, alkyl imidazoline and acetylenic glycols
Class compound is uniformly mixed, and adjusting pH is 5-7；
Step 2, under the conditions of Yu Wendu 60-80 DEG C, the acetylenic glycols polyoxyethylene ether and organosilicon are added according still further to ratio
Polyoxyethylene ether stirs evenly, and obtains the anti-dry spot additive.
Another aspect of the present invention further includes application of the anti-dry spot additive in aqueous cathode electrodip painting.
Another aspect of the present invention, a kind of anti-dry spot additive, by the alkyl imidazoline of 10-50 parts by weight, 10-50 weight
The acetylenic diols compound of part, the acetylenic glycols polyoxyethylene ether of 10-50 parts by weight, the organosilicone polyoxyethylene ether of 0-30 parts by weight
It is formed with the water of the alkanolamide class compound of 0-30 parts by weight, the solvent of 0-40 parts by weight and 0-35 parts by weight, wherein
The molecular structural formula of the alkyl imidazoline are as follows:
R1For C11-17Hydrocarbon chain, X OH；
The molecular structural formula of the acetylenic diols compound are as follows:
R2For C2-5Saturated hydrocarbon chains；
The molecular structural formula of the acetylenic glycols polyoxyethylene ether are as follows:
M+n=1-35；R3For C3-5Saturated hydrocarbon chains；R4For H or CH3；
The molecular structural formula of the organosilicone polyoxyethylene ether are as follows:
A, b are not 0, R5For H or CH3；
The molecular structural formula of the alkanolamide class compound are as follows:
R6For C11-17Hydrocarbon chain；X is OH；
The solvent is in ethylene glycol, butyl glycol ether, propylene glycol, dipropylene glycol methyl ether, isopropanol or ethylene glycol phenyl ether
It is one or more.
In the above-mentioned technical solutions, the parts by weight of the alkyl imidazoline are 10-30, the acetylenic diols compound
Parts by weight are 12.5-35, and the parts by weight of the acetylenic glycols polyoxyethylene ether are 10-20, the organosilicone polyoxyethylene ether
Parts by weight be 1-3, the parts by weight of the alkanolamide class compound are 2-6, and the parts by weight of the solvent are 10-
20, the parts by weight of the water are 2.5-10.
In the above-mentioned technical solutions, the anti-dry spot additive is prepared by the following method:
Step 1, under the conditions of 80-90 DEG C, in proportion by the alkanolamide class compound, alkyl imidazoline and acetylenic glycols
Class compound is uniformly mixed, and adjusting pH is 5-7；
Step 2, under the conditions of 60-80 DEG C, the acetylenic glycols polyoxyethylene ether and organosilicon polyoxy are added according still further to ratio
Vinethene stirs evenly, and adds water and is uniformly dispersed after addition solvent, obtains the anti-dry spot additive.
Another aspect of the present invention further includes application of the anti-dry spot additive in aqueous cathode electrodip painting.
Compared with prior art, the beneficial effects of the present invention are:
1. can increase the mobility of paint film due to the mating reaction of alkyl imidazoline and acetylenic glycols polyoxyethylene ether, make
It obtains paint film and sprawls more uniform, raising drying uniformity, so that anti-dry spot additive application of the invention is in commercially available commodity yin
When in the electrophoretic coating of pole, have the function of it is good prevent paint film generate dryspot, the paint film appearance produced is more
It is smooth.
2. the preparation method of the anti-dry spot additive of the present invention is easy, mild condition is convenient for industrial application.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.It should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
Tu Yile AMINE C-17 (Carvedilol oil base hydroxyethyl imidazole quinoline, is originated from: the conspicuous Puffy in Tianjin is happy)
Tu Yile AMINE C-12 (cocoyl hydroxyethyl imidazole quinoline, is originated from: the conspicuous Puffy in Tianjin is happy)
Tu Yile FS-82 (3,6- dimethyl -4- octyne -3,6- glycol, is originated from: the conspicuous Puffy in Tianjin is happy)
Tu Yile FS-202 (4,7- dimethyl -5- decine -4,7- glycol, is originated from: the conspicuous Puffy in Tianjin is happy)
Tu Yile FS-204 (2,4,7,9- tetramethyl -5- decine -4,7- glycol, is originated from: the conspicuous Puffy in Tianjin is happy)
(2,5,8,11- tetramethyl -6- dodecyne alcohol -5,8- glycol, are originated from: Tianjin He Pufei Tu Yile FS-304
It is happy)；
(2,5,8,11- tetramethyl -6- dodecyne alcohol -5,8- glycol polyethers, is originated from: day Tu Yile superwet-300
The conspicuous Puffy of saliva is happy)
Tu Yile superwet-300 includes applying easily happy superwet-320 (EO=4-5) and superwet-340 (EO=
6-8)；
(2,4,7,9- tetramethyl -5- decine -4,7- glycol polyoxyethylene ether, is originated from: Tianjin He Pufei Tu Yile FS-600
It is happy)
Tu Yile FS-600 includes applying easily happy FS-640 (EO=4-5) and FS-680 (EO=20-30)；
(organosilicone polyoxyethylene ether originates from Tego wet 270: Evonik)
Novol 1131 (alkanolamide originates from: flower king)；
Solvent is domestic commercial product.Ethylene glycol, butyl glycol ether, propylene glycol, dipropylene glycol methyl ether, isopropanol or second two
One of alcohol phenylate is a variety of.
For evaluating additive disclosed in this invention in the formula of electrophoretic coating are as follows:
| Component | Dosage |
| F1 electrophoresis lotion | 40% |
| Wherein: dispersion resin 1# | 38% |
| Dry spot additive | 0.6% |
| Defoaming agent | 0.3% |
| F2 electrophoresis mill base | 11% |
| Wherein: catalyst DBTO | 0.3% |
| Kaolin | 1% |
| Titanium dioxide | 1% |
| Water | 49% |
The preparation of F2 electrophoresis mill base: after high speed dispersion, pigments and fillers high speed dispersion 30min is added in water in dispersion resin, turns
Sand mill 1800rpm is moved to, 2h is ground, until fineness≤10 μm.
The application method of this coating are as follows:
The F1 of coating, F2 are poured into 2000mm × 500mm × 1500mm electrophoresis tank after mixing slot, be put into
The surface treated steel plate of 1500mm × 6mm × 1000mm, and connected with cathode, it opens electrophoretic painting and sets
It is standby, electrophoresis experiment is completed according to coating equipment condition；Workpiece is taken out, hangs 15 minutes, workpiece is then rinsed with water, after stopping
There is color lump spot in observation workpiece surface；Workpiece is toasted, workpiece surface is observed after taking-up and the shape of color lump spot occurs
Condition.The improvement result of dry spot additive is judged according to the spot quantity of dry film and wet film.
Deposition condition: tank liquor temperature (30 ± 1) DEG C, 180~280V of voltage, time 150s, interpolar are away from 15~20cm, ultimate ratio
1: 4,175 DEG C of baking temperature, baking time 20min.
Embodiment 1-10
According to electrophoretic coating formula rate of the present invention, electrophoretic coating is made with the dry spot additive for being formulated different, presses
According to the coating application method, same execution conditions is taken to carry out coating.The formula of dry spot additive see the table below:
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| AMINE C-12 | 0 | 10 | 0 | 10 | 0 | 0 | 50 | 0 | 15 | 0 |
| AMINE C-17 | 20 | 0 | 10 | 10 | 30 | 40 | 0 | 0 | 0 | 15 |
| FS-82 | 2.5 | 2.5 | 0 | 0 | 0 | 6 | 10 | 0 | 20 | 0 |
| FS-202 | 0 | 0 | 2.5 | 3 | 5 | 0 | 0 | 30 | 0 | 30 |
| FS-204 | 10 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FS-304 | 0 | 10 | 0 | 10 | 30 | 0 | 0 | 0 | 0 | 0 |
| FS-640 | 10 | 0 | 20 | 0 | 0 | 10 | 0 | 0 | 15 | 5 |
| FS-680 | 0 | 50 | 0 | 0 | 20 | 0 | 0 | 0 | 15 | 0 |
| superwet-320 | 0 | 0 | 30 | 0 | 0 | 0 | 15 | 0 | 0 | 10 |
| superwet-340 | 0 | 0 | 0 | 40 | 15 | 0 | 0 | 15 | 0 | 0 |
| Tego wet 270 | 2.5 | 0 | 3 | 1 | 0 | 0 | 15 | 0 | 15 | 0 |
| Nivol 1131 | 0 | 5 | 2 | 6 | 0 | 0 | 0 | 15 | 10 | 20 |
| Solvent | 20 | 20 | 20 | 10 | 0 | 10 | 5 | 40 | 10 | 0 |
| Water | 35 | 2.5 | 2.5 | 10 | 0 | 34 | 5 | 0 | 0 | 20 |
| It is total | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The embodiment 1-10's the preparation method is as follows:
Step 1, under the conditions of 80-90 DEG C, in proportion by the alkanolamide class compound, alkyl imidazoline and acetylenic glycols
Class compound is uniformly mixed, and adjusting pH is 5-7；
Step 2, under the conditions of temperature 60 C, the acetylenic glycols polyoxyethylene ether and organosilicon polyoxy are added according still further to ratio
Vinethene stirs evenly, and adds solvent or adds water, the anti-dry spot additive is obtained after being uniformly dispersed.
During the preparation process, when temperature parameter and pH change in the range in the preparation method, gained dry spot additive
Performance is identical.
Comparative example 1
Electrophoretic coating formula rate as described above is made without dry spot additive electrophoretic coating, according to the coating
Application method takes same execution conditions to carry out coating.
Performance verification is carried out to embodiment 1-10 and comparative example 1, obtains result as shown in the table.
It can be seen that dry spot additive of the invention of the invention by the above table to be added in cathode electrodip painting and can improve
Dryspot during electrophoretic painting has the function of the paint film appearance positive.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of anti-dry spot additive, which is characterized in that the alkyl imidazoline including 10-50 parts by weight, the alkynes of 10-50 parts by weight
Glycol compound, the acetylenic glycols polyoxyethylene ether of 10-50 parts by weight, the organosilicone polyoxyethylene ether and 0-30 of 0-30 parts by weight
The alkanolamide class compound of parts by weight, wherein
The molecular structural formula of the alkyl imidazoline are as follows:
R1For C11-17Hydrocarbon chain, X OH；
The molecular structural formula of the acetylenic diols compound are as follows:
R2For C2-5Saturated hydrocarbon chains；
The molecular structural formula of the acetylenic glycols polyoxyethylene ether are as follows:
M+n=1-35；R3For C3-5Saturated hydrocarbon chains；R4For H or CH3；
The molecular structural formula of the organosilicone polyoxyethylene ether are as follows:
A, b are not 0, R5For H or CH3；
The molecular structural formula of the alkanolamide class compound are as follows:
R6For C11-17Hydrocarbon chain；X is OH.
2. anti-dry spot additive as described in claim 1, which is characterized in that the parts by weight of the alkyl imidazoline are 10-
30, the parts by weight of the acetylenic diols compound are 12.5-35, and the parts by weight of the acetylenic glycols polyoxyethylene ether are 10-
20, the parts by weight of the organosilicone polyoxyethylene ether are 1-3, and the parts by weight of the alkanolamide class compound are 2-6.
3. anti-dry spot additive as described in claim 1, which is characterized in that further include 0-40 weight in the anti-dry spot additive
Measure the solvent of part and/or the water of 0-35 parts by weight.
4. anti-dry spot additive as described in claim 1, which is characterized in that be prepared by the following method:
Step 1, under the conditions of 80-90 DEG C, in proportion by the alkanolamide class compound, alkyl imidazoline and acetylenic diols
It closes object to be uniformly mixed, adjusting pH is 5-7；
Step 2, under the conditions of Yu Wendu 60-80 DEG C, the acetylenic glycols polyoxyethylene ether and organosilicon polyoxy are added according still further to ratio
Vinethene stirs evenly, and obtains the anti-dry spot additive.
5. application of the anti-dry spot additive in aqueous cathode electrodip painting as described in any one of claim 1-4.
6. a kind of anti-dry spot additive, which is characterized in that by the alkyl imidazoline of 10-50 parts by weight, the alkynes two of 10-50 parts by weight
Alcohol compound, the acetylenic glycols polyoxyethylene ether of 10-50 parts by weight, organosilicone polyoxyethylene ether and the 0-30 weight of 0-30 parts by weight
Measure the water composition of the alkanolamide class compound of part, the solvent of 0-40 parts by weight and 0-35 parts by weight, wherein
The molecular structural formula of the alkyl imidazoline are as follows:
R1For C11-17Hydrocarbon chain, X OH；
The molecular structural formula of the acetylenic diols compound are as follows:
R2For C2-5Saturated hydrocarbon chains；
The molecular structural formula of the acetylenic glycols polyoxyethylene ether are as follows:
M+n=1-35；R3For C3-5Saturated hydrocarbon chains；R4For H or CH3；
The molecular structural formula of the organosilicone polyoxyethylene ether are as follows:
A, b are not 0, R5For H or CH3；
The molecular structural formula of the alkanolamide class compound are as follows:
R6For C11-17Hydrocarbon chain；X is OH；
The solvent is one in ethylene glycol, butyl glycol ether, propylene glycol, dipropylene glycol methyl ether, isopropanol or ethylene glycol phenyl ether
Kind is a variety of.
7. anti-dry spot additive as claimed in claim 6, which is characterized in that the parts by weight of the alkyl imidazoline are 10-
30, the parts by weight of the acetylenic diols compound are 12.5-35, and the parts by weight of the acetylenic glycols polyoxyethylene ether are 10-
20, the parts by weight of the organosilicone polyoxyethylene ether are 1-3, and the parts by weight of the alkanolamide class compound are 2-6, institute
The parts by weight for stating solvent are 10-20, and the parts by weight of the water are 2.5-10.
8. anti-dry spot additive as claimed in claim 6, which is characterized in that be prepared by the following method:
Step 1, under the conditions of 80-90 DEG C, in proportion by the alkanolamide class compound, alkyl imidazoline and acetylenic diols
It closes object to be uniformly mixed, adjusting pH is 5-7；
Step 2, under the conditions of 60-80 DEG C, the acetylenic glycols polyoxyethylene ether and organosilicon polyoxyethylene are added according still further to ratio
Ether stirs evenly, and adds water and is uniformly dispersed after addition solvent, obtains the anti-dry spot additive.
9. application of the anti-dry spot additive in aqueous cathode electrodip painting as described in any one of claim 6-8.
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| CN201910245511.2A CN109868000A (en) | 2019-03-28 | 2019-03-28 | A kind of anti-dry spot additive and preparation method thereof and the application in aqueous cathode electrodip painting |
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| CN201910245511.2A CN109868000A (en) | 2019-03-28 | 2019-03-28 | A kind of anti-dry spot additive and preparation method thereof and the application in aqueous cathode electrodip painting |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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