CN109913059A - A kind of cathode electrophoresis dope and preparation method thereof of high throwing power - Google Patents
A kind of cathode electrophoresis dope and preparation method thereof of high throwing power Download PDFInfo
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- CN109913059A CN109913059A CN201910024093.4A CN201910024093A CN109913059A CN 109913059 A CN109913059 A CN 109913059A CN 201910024093 A CN201910024093 A CN 201910024093A CN 109913059 A CN109913059 A CN 109913059A
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- high throwing
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000008367 deionised water Substances 0.000 claims abstract description 22
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 22
- 239000006210 lotion Substances 0.000 claims abstract description 22
- 239000000049 pigment Substances 0.000 claims abstract description 20
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 17
- 239000004094 surface-active agent Substances 0.000 claims abstract description 17
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 15
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 15
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006184 cosolvent Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000002242 deionisation method Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 13
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 7
- -1 dipropylene Chemical compound 0.000 claims description 7
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- 238000002156 mixing Methods 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- CGLVZFOCZLHKOH-UHFFFAOYSA-N 8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo(3,2-b:3',2'-m)triphenodioxazine Chemical compound CCN1C2=CC=CC=C2C2=C1C=C1OC3=C(Cl)C4=NC(C=C5C6=CC=CC=C6N(C5=C5)CC)=C5OC4=C(Cl)C3=NC1=C2 CGLVZFOCZLHKOH-UHFFFAOYSA-N 0.000 claims description 3
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims 2
- BPMFZUMJYQTVII-UHFFFAOYSA-N guanidinoacetic acid Chemical compound NC(=N)NCC(O)=O BPMFZUMJYQTVII-UHFFFAOYSA-N 0.000 claims 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims 1
- 239000004593 Epoxy Substances 0.000 claims 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 1
- 241001062009 Indigofera Species 0.000 claims 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims 1
- 125000005233 alkylalcohol group Chemical group 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 239000004566 building material Substances 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 6
- 239000002585 base Substances 0.000 description 19
- 239000003973 paint Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 5
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 4
- 229910018557 Si O Inorganic materials 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 229960004275 glycolic acid Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001652 electrophoretic deposition Methods 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 150000008131 glucosides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The present invention relates to technical field of coatings, specifically disclose a kind of cathode electrophoresis dope and preparation method thereof of high throwing power.According to parts by weight, raw material includes following components: 5-15 parts of mill base, 35-70 parts of lotion, 30-50 parts of deionized water；Wherein the mill base includes following components in parts by mass: 5-30 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent 5-20 parts, 2-7 parts of neutralizer, 0.1-1 parts of surfactant, 20-45 parts of deionization, 3-27 parts of kaolin, 5-25 parts of pigment；The lotion includes following components in parts by mass: 30-40 parts of organosilicon modified crylic acid resin, 3-9 parts of emulsifier, 2-10 parts of neutralizer, 25-45 parts of deionized water.Cathode electrophoresis dope prepared by the present invention is able to satisfy metal building material workpiece surface coating, and to be coated at workpiece gap or obtained film layer in homogeneous thickness at shielding.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of cathode electrophoresis dope of high throwing power and its preparation side
Method.
Background technique
Since cathode electrophoresis dope comes out, no matter in terms of coating itself or coating application technology, all achieve many
Progress, is proposed many products and new application technology, and so far, almost 100% application ability cathode electrophoresis applies primer for automobiles
Material.
Electrophoretic coating is the water paint that developed earliest, it be mainly characterized by coating efficiency high, economic, safety,
Pollute it is small, convenient for automation size produce.After decades of development, product constantly updates, newest ability cathode electrophoresis
Coating requires the characteristics such as higher throwing power, lower P/B, better edge coverage effect.
Metal building material includes metal door and window, metal furniture etc., and process for treating surface is needed to provide higher edge coverage energy
Power, weatherability, acid-alkali-corrosive-resisting, atmospheric corrosiveness etc..Metal building material majority uses oxidation processes layer or oleic series at present
Spraying paint, wherein oleic series spraying paint edge coverage ability is poor, and oxidation processes layer acid-alkali-corrosive-resisting, atmospheric corrosion resistance are poor
And weatherability is poor, throwing power is low, and performance is far from satisfying the market demand.
Summary of the invention
Poor for existing oleic series spraying paint edge coverage ability, oxidation processes layer weatherability is poor, throwing power is low
Problem, the present invention provide a kind of cathode electrophoresis dope of high throwing power.
Further, the present invention also provides a kind of preparation methods of the cathode electrophoresis dope of high throwing power.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution:
A kind of cathode electrophoresis dope of high throwing power, it is characterised in that: according to parts by weight, raw material includes following components:
5-15 parts of mill base, 35-70 parts of lotion, 30-50 parts of deionized water；Wherein
The mill base includes following components in parts by mass: 5-30 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent
5-20 parts, 2-7 parts of neutralizer, 0.1-1 parts of surfactant, 20-45 parts of deionization, 3-27 parts of kaolin, 5-25 parts of pigment；
The lotion includes following components in parts by mass: 30-40 parts of organosilicon modified crylic acid resin, emulsifier 3-9
Part, 2-10 parts of neutralizer, 25-45 parts of deionized water.
Compared with the existing technology, the cathode electrophoresis dope of high throwing power provided by the invention, has the advantage that
(1) select organosilicon modified crylic acid resin as the main material of lotion and mill base, in silicone molecules structure
Containing Si-O key and Si-C key, the electronegativity difference of silicon and oxygen is larger, and nearly close to ionic bond, polysiloxane molecule is spiral
Structure, methyl are arranged outward and are rotated around Si-O key, and molecular volume is relatively large, and cohesion force density is lower, and Si-O key has
There are lower surface tension and chemical inertness, so that hydrone is difficult to depend on and osmopolymer intramolecule, acrylic resin
Its water solubility is deteriorated after organic-silicon-modified, water resistance improves, and water absorption rate decline, weatherability improves.
(2) using organosilicon modified crylic acid resin as the film forming matter of cathode electrophoresis dope, internal self-crosslinking reaction
In the process, it is mutually merged with other components, forms reticular structure, it can be in metal building material workpiece surface and recessed depths, seam
Film is formed at gap or well at shielding；And by limit its content control its crosslinking degree and cross-linked speed, avoid because
Too high levels and lead to paint film structural instability；The Si-O key in organosilicon modified crylic acid resin has excellent resistance toization simultaneously
The property learned and low-surface-energy, and spirally structure is introduced into acrylic resin, therefore the paint film formed is finer and close, deposition paint
Film resistance is bigger, so that throwing power enhances, corrosion resistance is stronger.
(3) pigment and kaolin are added in the application makes paint film have preferable color appearance, can also improve to a certain degree
The hardness and strength of paint film, therefore content and pigment and kaolin of the mill base in cathode electrophoresis dope are controlled in mill base
Content, can make that paint film is uniform, hardness is high, glossiness is high；When pigment and kaolin too high levels, on electrophoretic deposition to cathode plate
Amount is excessive, and the paint film that organosilicon modified crylic acid resin self-crosslinking is formed is difficult to cover whole pigment and kaolin, to lead
Cause surface of the paint film rough, glossiness is low；And content it is too low when, cause organosilicon modified crylic acid resin self-crosslinking formed
Paint film color is uneven, luminance shortage.
Specifically, it is preferred that the emulsifier is that fatty alcohol polyoxyethylene ether, aliphatic acid polyethenoxy methyl ether or alkyl are more
One of glucosides.
The emulsifier that the present invention selects not only has excellent biodegradability, environmentally protective, but also has excellent
Organosilicon modified crylic acid resin is formed in the reaction system of lotion uniform lotion, is conducive to by permeability and emulsibility
The paint film being subsequently formed is finer and close.
Preferably, the neutralizer is one of acetic acid, hydroxyacetic acid, formic acid, citric acid or lactic acid.
Preferably, the environmentally friendly cosolvent be dipropylene glycol methyl ether, it is butyl glycol ether, dipropylene, isopropanol, secondary
At least one of butanol or butyl.
Preferably, the surfactant is the nonionic surfactant or nonyl phenol of ethylene oxide propylene oxide copolymerization
One of polyethenoxy ether class nonionic surfactant.
Preferably, the pigment is at least one of carbon black, phthalocyanine blue, titanium dioxide, permanent violet or dark green.
Further, the present invention also provides the preparation methods of the cathode electrophoresis dope of the high throwing power.The preparation method,
It at least includes the following steps:
Step 1 is weighed according to the above-mentioned raw material proportioning stated；
Step 2 prepares mill base: by organosilicon modified crylic acid resin, environmentally friendly cosolvent, neutralizer, surfactant, going
Ionized water, kaolin, pigment are added in first reactor, stirring, grinding；
Step 3, preparation lotion: it is anti-that organosilicon modified crylic acid resin, emulsifier, neutralizer and deionized water are added to second
It answers in device, stir process；
The mill base prepared, lotion, deionized water are added in third reactor, stir process by step 4,
The ability cathode electrophoresis suitable for metal building material is obtained to apply.
The preparation method of the cathode electrophoresis dope of high throwing power provided by the invention is simple, pushes away on a large scale suitable for industry
Extensively.
Specifically, it is preferable that in step 2, the mixing speed is 400-600rpm, and the fineness of grind is≤20um.
The mixing speed of 400-600rpm is selected, mainly colour paste system viscosity is larger, stirs at low speed and is not easy bubble
It stirs into system, and high-speed stirred is readily incorporated bubble, when viscosity is big, bubble is not easy to be precipitated, and will affect filming performance.
Preferably, in step 4, the speed of the stir process is 1000-1500rpm.
The mixing speed of 1500-2000rpm is selected, mixing helps to disperse when stirring high-speed.
Preferably, in step 3, the speed of the stir process is 500-800rpm.
The mixing speed for selecting dispersion is the moderate-speed mixer of 500-800rpm, mainly contains film forming matter in emulsion system
Matter, rate influences very much system performance fastly, so making system reach uniform effect with moderate-speed mixer rate.
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 cathode electrophoresis dope of high throwing power, and according to parts by weight, raw material includes following
Component: 15 parts of mill base, 55 parts of lotion, 50 parts of deionized water；Wherein
Above-mentioned mill base includes following components in parts by mass: 18 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent 5
Part, 2 parts of neutralizer, 0.4 part of surfactant, 30 parts of deionization, kaolin 23,9 parts of pigment；
Above-mentioned emulsion includes following components in parts by mass: 40 parts of organosilicon modified crylic acid resin, 6 parts of emulsifier, in
With 3 parts of agent, 45 parts of deionized water.
Above-mentioned pigment is carbon black, and environmentally friendly cosolvent is the mixture of dipropylene glycol methyl ether and butyl glycol ether, and neutralizer is
Acetic acid, surfactant are nonylphenol polyoxyethylene ether, and emulsifier is aliphatic acid polyethenoxy methyl ether.
The preparation method of the cathode electrophoresis dope of above-mentioned high throwing power includes the following steps:
Step 1 is weighed according to above-mentioned raw material proportioning；
Step 2 prepares mill base: by organosilicon modified crylic acid resin, environmentally friendly solvent, neutralizer, surfactant, go from
Sub- water is added in first reactor, is stirred evenly with the speed of 500rpm, is then added kaolin and pigment, with 500rpm
Speed stir evenly, be ground to fineness≤20um；
Step 3, preparation lotion: it is anti-that organosilicon modified crylic acid resin, emulsifier, neutralizer and deionized water are added to second
It answers in device, every kind of component is stirred evenly after being added with the speed of 600rpm, finally standby with the speed stirring 30min of 600rpm
With；
The mill base prepared, lotion, deionized water are added in third reactor by step 4, with 1500rpm
Speed stirring 10min to get arrive the high throwing power cathode electrophoresis dope.
Embodiment 2
The embodiment of the present invention provides a kind of cathode electrophoresis dope of high throwing power, and according to parts by weight, raw material includes following
Component: 5 parts of mill base, 35 parts of lotion, 40 parts of deionized water；Wherein
Above-mentioned mill base includes following components in parts by mass: 30 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent 20
Part, 7 parts of neutralizer, 1 part of surfactant, 45 parts of deionization, kaolin 27,25 parts of pigment；
Above-mentioned emulsion includes following components in parts by mass: 30 parts of organosilicon modified crylic acid resin, 4 parts of emulsifier, in
With 10 parts of agent, 25 parts of deionized water.
Above-mentioned pigment is the mixture of carbon black, phthalocyanine blue and titanium dioxide that quality is 2:3:5, and environmentally friendly cosolvent is dipropyl two
The mixture of alcohol butyl ether and isopropanol, neutralizer are citric acid, surfactant be ethylene oxide propylene oxide copolymerization it is non-from
Sub- surfactant, emulsifier are alkyl polyglycoside.
The preparation method of the cathode electrophoresis dope of above-mentioned high throwing power includes the following steps:
Step 1 is weighed according to above-mentioned raw material proportioning；
Step 2 prepares mill base: by organosilicon modified crylic acid resin, environmentally friendly solvent, neutralizer, surfactant, go from
Sub- water is added in first reactor, is stirred evenly with the speed of 600rpm, is then added kaolin and pigment, with 600rpm
Speed stir evenly, be ground to fineness≤20um；
Step 3, preparation lotion: it is anti-that organosilicon modified crylic acid resin, emulsifier, neutralizer and deionized water are added to second
It answers in device, every kind of component is stirred evenly after being added with the speed of 700rpm, finally standby with the speed stirring 20min of 800rpm
With；
The mill base prepared, lotion, deionized water are added in third reactor by step 4, with 1200rpm
Speed stirring 15min to get arrive the high throwing power cathode electrophoresis dope.
Embodiment 3
The embodiment of the present invention provides a kind of cathode electrophoresis dope of high throwing power, and according to parts by weight, raw material includes following
Component: 10 parts of mill base, 70 parts of lotion, 50 parts of deionized water；Wherein
Above-mentioned mill base includes following components in parts by mass: 10 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent 5
Part, 5 parts of neutralizer, 0.1 part of surfactant, 20 parts of deionization, kaolin 5,10 parts of pigment；
Above-mentioned emulsion includes following components in parts by mass: 35 parts of organosilicon modified crylic acid resin, 9 parts of emulsifier, in
With 8 parts of agent, 45 parts of deionized water.
Above-mentioned pigment is the mixture of permanent violet, phthalocyanine blue and titanium dioxide that quality is 1:3:7, and environmentally friendly cosolvent is Zhong Ding
The mixture of pure and mild butyl, neutralizer are hydroxyacetic acid, and surfactant is nonylphenol polyoxyethylene ether, emulsifier
For fatty alcohol polyoxyethylene ether.
The preparation method of the cathode electrophoresis dope of above-mentioned high throwing power includes the following steps:
Step 1 is weighed according to above-mentioned raw material proportioning；
Step 2 prepares mill base: by organosilicon modified crylic acid resin, environmentally friendly solvent, neutralizer, surfactant, go from
Sub- water is added in first reactor, is stirred evenly with the speed of 400rpm, is then added kaolin and pigment, with 400rpm
Speed stir evenly, be ground to fineness≤20um；
Step 3, preparation lotion: it is anti-that organosilicon modified crylic acid resin, emulsifier, neutralizer and deionized water are added to second
It answers in device, every kind of component is stirred evenly after being added with the speed of 500rpm, finally standby with the speed stirring 30min of 500rpm
With；
The mill base prepared, lotion, deionized water are added in third reactor by step 4, with 1000rpm
Speed stirring 25min to get arrive the high throwing power cathode electrophoresis dope.
The characteristic of the cathode electrophoresis dope for the high throwing power that embodiment provides in order to better illustrate the present invention, below will be real
The cathode electrophoresis dope for applying the high throwing power of the preparation of example 1,2,3 carries out performance detection, as a result as shown in table 1 below.
1 performance test results of table
Note: the detection method of throwing power are as follows:
With reference to national standard JB/T 10242 appendix A, 10,4 pieces of box methods
Basic experimental conditions: having a size of 70mm × 150mm × the phosphatization steel plate of (0.7~1.0) mm, having a size of 50mm ×
150mm × (0.7~1.0) mm stainless steel plate
Deposition condition: 28 DEG C of electrophoresis temperature, voltage 250V or more, 20 μm of film thickness, electrophoresis time 3min
Parameter request: throwing power >=65%
The detection method of weatherability are as follows:
With reference to national standard: GB 1767-1979
Basic experimental conditions: having a size of 70mm × 150mm × the phosphatization steel plate of (0.7~1.0) mm
Deposition condition: 28 DEG C of electrophoresis temperature, 20 μm of film thickness, electrophoresis time 3min
Parameter request: light-protection rate is greater than 70%, >=500h
As can be seen from Table 1, the cathode electrophoresis dope of the high throwing power of preparation of the embodiment of the present invention not only has excellent
Weatherability, anticorrosive property, acid resistance, alkali resistance, while its throwing power is high, has and is able to satisfy the painting of metal building material workpiece surface
Dress, and to be coated at workpiece surface and recessed depths, gap or obtained film layer in homogeneous thickness etc. at shielding.
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 (10)
1. a kind of cathode electrophoresis dope of high throwing power, it is characterised in that: according to parts by weight, raw material includes following components: color
5-15 parts, 35-70 parts of lotion, 30-50 parts of deionized water of slurry；Wherein
The mill base includes following components in parts by mass: 5-30 parts of organosilicon modified crylic acid resin, environmentally friendly cosolvent 5-20
Part, 2-7 parts of neutralizer, 0.1-1 parts of surfactant, 20-45 parts of deionization, 3-27 parts of kaolin, 5-25 parts of pigment；
The lotion includes following components in parts by mass: 30-40 parts of organosilicon modified crylic acid resin, 3-9 parts of emulsifier, in
With 2-10 parts of agent, 25-45 parts of deionized water.
2. the cathode electrophoresis dope of high throwing power as described in claim 1, it is characterised in that: the emulsifier is poly alkyl alcohol
One of ethylene oxide ether, aliphatic acid polyethenoxy methyl ether or alkyl polyglycoside.
3. the cathode electrophoresis dope of high throwing power as described in claim 1, it is characterised in that: the neutralizer is acetic acid, hydroxyl
One of guanidine-acetic acid, formic acid, citric acid or lactic acid.
4. the cathode electrophoresis dope of high throwing power as described in claim 1, it is characterised in that: the environmental protection cosolvent is dipropyl
At least one of glycol methyl ether, butyl glycol ether, dipropylene, isopropanol, sec-butyl alcohol or butyl.
5. the cathode electrophoresis dope of high throwing power as described in claim 1, it is characterised in that: the surfactant is epoxy
One in the nonionic surfactant or nonylphenol polyoxyethylene ether class nonionic surfactant of the copolymerization of ethane epoxy propane
Kind.
6. the cathode electrophoresis dope of high throwing power as described in claim 1, it is characterised in that: the pigment is carbon black, phthalein blueness
At least one of indigo plant, titanium dioxide, permanent violet or dark green.
7. a kind of preparation method of the cathode electrophoresis dope of high throwing power, it is characterised in that: at least include the following steps:
Step 1 is weighed according to raw material proportioning as described in any one of claims 1 to 6；
Step 2 prepares mill base: by organosilicon modified crylic acid resin, environmentally friendly cosolvent, neutralizer, surfactant, deionization
Water, kaolin, pigment are added in first reactor, stirring, grinding；
Step 3, preparation lotion: organosilicon modified crylic acid resin, emulsifier, neutralizer and deionized water are added to second reactor
In, stir process；
The mill base prepared, lotion, deionized water are added in third reactor by step 4, and stir process obtains
The cathode electrophoresis dope of the high throwing power.
8. the preparation method of the cathode electrophoresis dope of high throwing power as claimed in claim 7, it is characterised in that: in step 2, institute
Stating mixing speed is 400-600rpm, and the fineness of grind is≤20um.
9. the preparation method of the cathode electrophoresis dope of high throwing power as claimed in claim 7, it is characterised in that: in step 4, institute
The speed for stating stir process is 1000-1500rpm.
10. the preparation method of the cathode electrophoresis dope of high throwing power as claimed in claim 7, it is characterised in that: in step 3,
The speed of the stir process is 500-800rpm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112442721A (en) * | 2020-11-13 | 2021-03-05 | 西安昆仑工业（集团）有限责任公司 | Electrophoresis painting process for heat-insulation bridge-cut-off aluminum profile |
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| CN103396718A (en) * | 2013-08-02 | 2013-11-20 | 武汉双虎涂料有限公司 | Preparation method of fastener cathode electrophoretic paint |
| CN103554350A (en) * | 2013-11-13 | 2014-02-05 | 深圳市志邦科技有限公司 | Method for preparing organosilicone-modified acrylic resin |
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| CN103396718A (en) * | 2013-08-02 | 2013-11-20 | 武汉双虎涂料有限公司 | Preparation method of fastener cathode electrophoretic paint |
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Application publication date: 20190621 |