CN110396360A - A kind of cathode electrophoresis dope and preparation method thereof - Google Patents
A kind of cathode electrophoresis dope and preparation method thereof Download PDFInfo
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- CN110396360A CN110396360A CN201910566909.6A CN201910566909A CN110396360A CN 110396360 A CN110396360 A CN 110396360A CN 201910566909 A CN201910566909 A CN 201910566909A CN 110396360 A CN110396360 A CN 110396360A
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- cathode electrophoresis
- electrophoresis dope
- deionized water
- polyurethane resin
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000004593 Epoxy Substances 0.000 claims abstract description 38
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 38
- 239000008367 deionised water Substances 0.000 claims abstract description 37
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 37
- 239000006210 lotion Substances 0.000 claims abstract description 30
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 17
- 239000000049 pigment Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 239000006184 cosolvent Substances 0.000 claims abstract description 15
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 13
- -1 neutralizer Substances 0.000 claims abstract description 12
- 230000000855 fungicidal effect Effects 0.000 claims abstract description 11
- 239000000417 fungicide Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 22
- 150000001412 amines Chemical class 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 14
- 229920000647 polyepoxide Polymers 0.000 claims description 14
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 9
- OSXYHAQZDCICNX-UHFFFAOYSA-N dichloro(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](Cl)(Cl)C1=CC=CC=C1 OSXYHAQZDCICNX-UHFFFAOYSA-N 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 claims description 6
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005576 amination reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 235000011054 acetic acid Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- 150000003014 phosphoric acid esters Chemical group 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- IOGHPVQIVVOORI-UHFFFAOYSA-N NC[Si](Cl)(Cl)C1=CC=CC=C1 Chemical compound NC[Si](Cl)(Cl)C1=CC=CC=C1 IOGHPVQIVVOORI-UHFFFAOYSA-N 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000003973 paint Substances 0.000 description 12
- 238000003756 stirring Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- GNEPOXWQWFSSOU-UHFFFAOYSA-N dichloro-methyl-phenylsilane Chemical compound C[Si](Cl)(Cl)C1=CC=CC=C1 GNEPOXWQWFSSOU-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 231100001244 hazardous air pollutant Toxicity 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical group OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/005—Carbon black
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4473—Mixture of polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4488—Cathodic paints
- C09D5/4492—Cathodic paints containing special additives, e.g. grinding agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to electrophoretic coating technical fields, specifically disclose a kind of cathode electrophoresis dope and preparation method thereof.The coating according to parts by weight, including following components: 10-15 parts of mill base, 40-50 parts of lotion, deionized water 50-60；The lotion includes following components: epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer, cosolvent, fungicide；The mill base includes following components: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment, catalysis slurry, neutralizer.The cathode electrophoresis dope hardness of invention preparation is high, adhesive force is strong, flexibility is high, and has excellent corrosion-resistant and oil resistivity, and throwing power reaches 0.7 or more.
Description
Technical field
The present invention relates to electrophoretic coating technical fields more particularly to a kind of cathode electrophoresis dope and preparation method thereof.
Background technique
Electrophoretic coating belongs to environmental protection coating material, it takes water as a solvent, volatile organic matter (VOC) and hazardous air pollutants
(HAP) content is low, smaller to the pollution of environment.The polarity of water-soluble, film-forming object after dissociating in water according to electrophoretic coating is not
Together, two class of anode electrophoresis dope and cathode electrophoresis dope can be divided into.Anode electrophoresis dope the shortcomings that there are anodic oxidations, it can corrode
Metal surface (in addition to aluminium and torpescence metal), makes it tarnish, therefore anode electrophoresis dope generally only makees anti-corrosion primer, cannot
Meet the requirement of incrustation.It is higher and with decorative effect that people have developed corrosion resisting property in early 1970s
Cathode electrophoresis dope is widely used in automobile and automotive industry.Cathode electrophoresis dope mostly uses oleic series at present
Spraying paint, oil preventing performance and anticorrosive property is poor, hardness and throwing power are relatively low, performance is far from the market demand is met, significantly
Limit cathode electrophoresis dope in the surface anticorrosion of the industrial circles such as building materials, light industry, household electrical appliance and hardware and craftwork and
Application in decoration.
Summary of the invention
The problems such as existing cathode electrophoresis dope oil preventing performance and anticorrosive property is poor, hardness and throwing power are relatively low, this
Invention provides a kind of cathode electrophoresis dope.
And a kind of preparation method of cathode electrophoresis dope.
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, according to parts by weight, including following components: it 10-15 parts of mill base, 40-50 parts of lotion, goes
Ionized water 50-60；
The lotion according to parts by weight, including following components: epoxy amine -20-25 parts of polyurethane resin, organic siliconresin
15-25 parts, 0.1-1 parts of emulsifier, 30-60 parts of deionized water, 0.1-1 parts of neutralizer, 0.1-1 parts of cosolvent, fungicide 0.1-
0.3 part；
The mill base according to parts by weight, including following components: epoxy amine -30-50 parts of polyurethane resin, deionized water
15-30 parts, 10-25 parts of organobentonite, 15-30 parts of pigment, 1-5 parts, 0.5-1 parts of neutralizer of catalysis slurry.
Compared with the existing technology, cathode electrophoresis dope provided by the invention has the advantage that
For the present invention using epoxy amine-polyurethane resin as the main film forming substance of lotion and mill base, epoxy resin passes through amine
Polyamines is introduced after change, this improves its aqueous stability at relatively high ph, and the introducing of polyamines, and improves electrophoretic coating
Throwing power and paint film anti-corrosive properties；Blocked polyurethane prepolymer can be crosslinked with hydroxyl, the amido in epoxy amine, in baking
The sealer released makes levelability, flexibility and the adhesive force of paint film high.
The application is used in compounding with organic siliconresin and epoxy amine-polyurethane resin, and organic siliconresin makes film layer hole
Rate is reduced, and increases film layer compactness, to improve its hardness and salt fog resistance, then by the way that bentonite is added, can reduce film
The water absorption rate of layer reduces the contact area of pollutant and film, further increases the hydrophobicity of film coated surface, and rainwater is made to be easy punching
Brush, dust are easy to be cleaned, and improve the water resistance and oil resistivity of paint film.
The application, as filler, increases the viscosity of coating using bentonite, improves adhesive force.
Preferably, the organic siliconresin be dichloromethyl phenylsilane, diphenyl dichlorosilane, diphenyl dichlorosilane or
At least one of dimethyldichlorosilane.
Currently preferred machine silicone resin had not only had the advantages that pure heat resistance of organic silicon resin can be good, but also has had resistance to height
The good feature of temperature, temperature-change resistance energy, and fast drying under room temperature, paint film are tough and tensile.
Preferably, the epoxy amine-polyurethane resin the preparation method comprises the following steps: by epoxy resin amination, amine value 40-
Then 70mg/g mixes obtained epoxy amine and polyurethane resin according to the ratio that mass ratio is 3-6:1.
Preferred amine value can guarantee there are enough amidos in film forming matter, with after open loop epoxy resin and polyurethane tree
Rouge is crosslinked, and is reduced solidification temperature, is improved the levelability and flexibility of paint film.
The ratio of preferred epoxy amine and polyurethane resin, so that the impact resistance of paint film and resistance to ag(e)ing are high, if poly-
Urethane is excessively high, so that paint film brittleness is big, if epoxy-amine resin is excessively high, then and the loss of properties on aging of paint film.
Preferably, the emulsifier is phosphoric acid esters wedding agents.
Phosphoric acid esters wedding agents not only have emulsifying capacity to monomer, and can be participated in certainly by double bond present in this body structure
Entered in polymer chain by base copolyreaction and generation particle is made to obtain stably dispersing, improves the weatherability and hardness of paint film, together
When phosphate also there is antirust function, improve airtight salt fog resistance.
Preferably, the neutralizer is formic acid, acetic acid, lactic acid or maleic acid.
Preferably, the cosolvent is isopropanol, sec-butyl alcohol, dipropylene glycol methyl ether or propylene glycol monomethyl ether.
Preferably, it is described catalysis slurry the preparation method comprises the following steps: by methylisothiazolinone, epoxy resin and deionized water according to
The ratio that mass ratio is 1.5-2.5:1.5-2.5:0.8-1.2 mixes, and is ground to fineness≤30 μm.
It is reacted after epoxy resin open loop in catalysis slurry with the amino in epoxy amine-polyurethane resin, promotes epoxy
Epoxy resin in amine-polyurethane resin is crosslinked with polyurethane resin, improves cross-linked speed, reduces film-forming temperature, is improved
The rate of drying of paint film, while adding the antiseptic property that methylisothiazolinone improves paint film.
Pigment includes but is not limited to that carbon black, titanium dioxide or barium sulfate can apply the ability cathode electrophoresis according to the market demand
Material is adjusted to random color.
Further, it is preferable to ground, the pigment is that carbon black, titanium dioxide or barium sulfate are at least one,
Further, the present invention also provides the preparation methods of the cathode electrophoresis dope.The preparation method, include at least with
Lower step:
Step a, each component is weighed according to above-mentioned raw material proportioning；
Step b, it prepares mill base: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment and catalysis slurry is added
Enter into first reactor and carry out the first mixing treatment, being ground to fineness is≤12.5 μm, obtains mill base；
Step c, prepare lotion: by epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer,
Cosolvent and fungicide, which are added in second reactor, carries out the second mixing treatment, obtains lotion；
Step d, the mill base, lotion and deionized water are subjected to third mixing treatment, obtain the cathode electrophoresis dope.
Compared with the existing technology, the preparation method of cathode electrophoresis dope provided by the invention, simply, process is easy to control,
And fineness≤12.5 μm for controlling mill base guarantee the homogeneity of mill base.
Preferably, in step b, the condition of first mixing treatment are as follows: mixing speed 600-800rpm, time is
20-30min。
Preferably, in step c, the condition of first mixing treatment are as follows: mixing speed 600-800rpm, time is
20-30min。
It is preferred that the revolving speed of 600-800rpm, mainly system viscosity are larger, the mixing speed of 600-800rpm is selected to be not easy
Bubble is stirred into system, and high-speed stirred is readily incorporated bubble, when viscosity is big, bubble is not easy to be precipitated, and will affect film forming
Can, so the mixing speed of selection 600-800rpm.
Preferably, in institute step d, the condition of the third mixing treatment are as follows: mixing speed 600-1200rpm, time
For 10-20min.
It is preferred that the rate of 600-1200rpm stirs, facilitate the dispersion of lotion and mill base, system is made to reach uniform effect.
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, according to parts by weight, including following components: 10 parts of mill base,
45 parts of lotion, deionized water 50-60；
The lotion according to parts by weight, including following components: 20 parts of epoxy amine-polyurethane resin, organic siliconresin 15
Part, 0.3 part of emulsifier, 30 parts of deionized water, 0.3 part of neutralizer, 0.1 part of cosolvent, 0.2 part of fungicide；
The mill base according to parts by weight, including following components: 30 parts of epoxy amine-polyurethane resin, 15 parts of deionized water,
15 parts of organobentonite, 15 parts of pigment, 1 part, 0.5 part of neutralizer of catalysis slurry.
Above-mentioned organic siliconresin is the mixing of dichloromethyl phenylsilane and diphenyl dichlorosilane that mass ratio is 2:1
Object, the neutralizer in above-mentioned emulsion are formic acid, and the neutralizer in above-mentioned mill base is lactic acid；Above-mentioned cosolvent is dipropylene glycol first
Ether；Above-mentioned pigment is the mixture of the carbon black that quality is 1:10 and barium sulfate；The preparation of epoxy amine-polyurethane resin described above
Method are as follows: by epoxy resin amination, then obtained epoxy amine and polyurethane resin are by amine value 50mg/g according to mass ratio
The ratio of 4:1 mixes；Above-mentioned catalysis slurry the preparation method comprises the following steps: by methylisothiazolinone, epoxy resin and deionized water according to
The ratio that mass ratio is 2:2:1 mixes, and is ground to fineness≤30 μm.
The preparation method of above-mentioned cathode electrophoresis dope the following steps are included:
Step a, each component is weighed according to above-mentioned raw material proportioning；
Step b, it prepares mill base: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment and catalysis slurry is added
Enter into first reactor and stir 30min under conditions of 600rpm, being ground to fineness is≤12.5 μm, obtains mill base；
Step c, prepare lotion: by epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer,
Cosolvent and fungicide, which are added in second reactor, stirs 25min under conditions of 700rpm, obtains lotion；
Step d, the mill base, lotion and deionized water are stirred into 10min under the speed of 1200rpm, obtains the yin
Pole electrophoretic coating.
Embodiment 2
The embodiment of the present invention provides a kind of cathode electrophoresis dope, according to parts by weight, including following components: 12 parts of mill base,
40 parts of lotion, deionized water 50；
The lotion according to parts by weight, including following components: 22 parts of epoxy amine-polyurethane resin, organic siliconresin 17
Part, 0.1 part of emulsifier, 45 parts of deionized water, 0.1 part of neutralizer, 0.5 part of cosolvent, 0.1 part of fungicide；
The mill base according to parts by weight, including following components: 40 parts of epoxy amine-polyurethane resin, 20 parts of deionized water,
10 parts of organobentonite, 20 parts of pigment, 3 parts, 0.8 part of neutralizer of catalysis slurry.
Above-mentioned organic siliconresin is the mixture of the diphenyl dichlorosilane that mass ratio is 1:1 and dimethyldichlorosilane, on
Stating the neutralizer in lotion is acetic acid, and the neutralizer in above-mentioned mill base is maleic acid；Above-mentioned cosolvent is sec-butyl alcohol；Above-mentioned pigment
For the mixture of carbon black, barium sulfate and titanium dioxide that quality is 1:10:5；The preparation side of epoxy amine-polyurethane resin described above
Method are as follows: by epoxy resin amination, then obtained epoxy amine and polyurethane resin are 6 according to mass ratio by amine value 70mg/g:
1 ratio mixing；Above-mentioned catalysis slurry the preparation method comprises the following steps: by methylisothiazolinone, epoxy resin and deionized water according to matter
Amount is mixed than the ratio for being 1.5:2.5:0.8, is ground to fineness≤30 μm.
The preparation method of above-mentioned cathode electrophoresis dope the following steps are included:
Step a, each component is weighed according to above-mentioned raw material proportioning；
Step b, it prepares mill base: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment and catalysis slurry is added
Enter into first reactor and stir 25min under conditions of 700rpm, being ground to fineness is≤12.5 μm, obtains mill base；
Step c, prepare lotion: by epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer,
Cosolvent and fungicide, which are added in second reactor, stirs 30min under conditions of 600rpm, obtains lotion；
Step d, the mill base, lotion and deionized water are stirred into 20min under the speed of 800rpm, obtains the cathode
Electrophoretic coating.
Embodiment 3
The embodiment of the present invention provides a kind of cathode electrophoresis dope, according to parts by weight, including following components: 10 parts of mill base,
50 parts of lotion, deionized water 55；
The lotion according to parts by weight, including following components: 25 parts of epoxy amine-polyurethane resin, organic siliconresin 25
Part, 1 part of emulsifier, 60 parts of deionized water, 1 part of neutralizer, 1 part of cosolvent, 0.3 part of fungicide；
The mill base according to parts by weight, including following components: 50 parts of epoxy amine-polyurethane resin, 30 parts of deionized water,
25 parts of organobentonite, 30 parts of pigment, 5 parts, 1 part of neutralizer of catalysis slurry.
Above-mentioned organic siliconresin is diphenyl dichlorosilane, diphenyl dichlorosilane and the dimethyl two that mass ratio is 1:1:2
The mixture of chlorosilane, the neutralizer in above-mentioned emulsion are lactic acid, and the neutralizer in above-mentioned mill base is acetic acid；Above-mentioned cosolvent is
Propylene glycol monomethyl ether；Above-mentioned pigment is the mixture of carbon black, barium sulfate and titanium dioxide that quality is 1:5:5；Epoxy amine-described above
Polyurethane resin the preparation method comprises the following steps: by epoxy resin amination, amine value 40mg/g, then by obtained epoxy amine and polyurethane
Resin is mixed according to the ratio that mass ratio is 3:1；Above-mentioned catalysis slurry the preparation method comprises the following steps: by methylisothiazolinone, asphalt mixtures modified by epoxy resin
Rouge and deionized water are mixed according to the ratio that mass ratio is 2.5:1.5:1.2, are ground to fineness≤30 μm.
The preparation method of above-mentioned cathode electrophoresis dope the following steps are included:
Step a, each component is weighed according to above-mentioned raw material proportioning；
Step b, it prepares mill base: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment and catalysis slurry is added
Enter into first reactor and stir 20min under conditions of 800rpm, being ground to fineness is≤12.5 μm, obtains mill base；
Step c, prepare lotion: by epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer,
Cosolvent and fungicide, which are added in second reactor, stirs 20min under conditions of 800rpm, obtains lotion；
Step d, the mill base, lotion and deionized water are stirred into 15min under the speed of 600rpm, obtains the cathode
Electrophoretic coating.
The characteristic for the cathode electrophoresis dope that embodiment provides in order to better illustrate the present invention, below by embodiment 1-3 system
Standby cathode electrophoresis dope carries out performance detection, and testing result is as shown in table 1 below.
1 testing result of table
It can see that slightly, cathode electrophoresis dope hardness prepared by the present invention is high, adhesive force is strong, flexibility is high from table 1, and have
There is excellent corrosion-resistant and oil resistivity, throwing power reaches 0.7 or more.
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, it is characterised in that: according to parts by weight, including following components: 10-15 parts of mill base, lotion
40-50 parts, deionized water 50-60；
The lotion according to parts by weight, including following components: epoxy amine -20-25 parts of polyurethane resin, organic siliconresin 15-
25 parts, 0.1-1 parts of emulsifier, 30-60 parts of deionized water, 0.1-1 parts of neutralizer, 0.1-1 parts of cosolvent, fungicide 0.1-0.3
Part；
The mill base according to parts by weight, including following components: epoxy amine -30-50 parts of polyurethane resin, deionized water 15-30
Part, 10-25 parts of organobentonite, 15-30 parts of pigment, 1-5 parts, 0.5-1 parts of neutralizer of catalysis slurry.
2. cathode electrophoresis dope as described in claim 1, it is characterised in that: the organic siliconresin is aminomethyl phenyl dichloro silicon
At least one of alkane, diphenyl dichlorosilane, diphenyl dichlorosilane or dimethyldichlorosilane.
3. cathode electrophoresis dope as described in claim 1, it is characterised in that: the preparation side of the epoxy amine-polyurethane resin
Method are as follows: by epoxy resin amination, amine value 40-70mg/g, then by obtained epoxy amine and polyurethane resin according to mass ratio
It is mixed for the ratio of 3-6:1.
4. cathode electrophoresis dope as described in claim 1, it is characterised in that: the emulsifier is phosphoric acid esters wedding agents；With/
Or
The neutralizer is formic acid, acetic acid, lactic acid or maleic acid.
5. cathode electrophoresis dope as described in claim 1, it is characterised in that: the cosolvent is isopropanol, sec-butyl alcohol, dipropyl
Glycol methyl ether or propylene glycol monomethyl ether.
6. cathode electrophoresis dope as described in claim 1, it is characterised in that: it is described catalysis slurry the preparation method comprises the following steps: by methyl
Isothiazolinone, epoxy resin and deionized water are mixed according to the ratio that mass ratio is 1.5-2.5:1.5-2.5:0.8-1.2, are ground
It is milled to fineness≤30 μm.
7. cathode electrophoresis dope as described in claim 1, it is characterised in that: the pigment is carbon black, titanium dioxide or barium sulfate
It is at least one.
8. a kind of preparation method of cathode electrophoresis dope, it is characterised in that: at least include the following steps:
Step a, each component is weighed according to raw material proportioning as described in any one of claims 1 to 7；
Step b, it prepares mill base: epoxy amine-polyurethane resin, deionized water, organobentonite, pigment and catalysis slurry is added to
The first mixing treatment is carried out in first reactor, being ground to fineness is≤12.5 μm, obtains mill base；
Step c, lotion is prepared: by epoxy amine-polyurethane resin, organic siliconresin, emulsifier, deionized water, neutralizer, hydrotropy
Agent and fungicide, which are added in second reactor, carries out the second mixing treatment, obtains lotion；
Step d, the mill base, lotion and deionized water are subjected to third mixing treatment, obtain the cathode electrophoresis dope.
9. the preparation method of cathode electrophoresis dope as claimed in claim 8, it is characterised in that: in step b, first mixing
The condition of processing are as follows: mixing speed 600-800rpm, time 20-30min；And/or
In step c, the condition of first mixing treatment are as follows: mixing speed 600-800rpm, time 20-30min.
10. the preparation method of cathode electrophoresis dope as claimed in claim 8, it is characterised in that: in institute step d, the third
The condition of mixing treatment are as follows: mixing speed 600-1200rpm, time 10-20min.
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