CN106047051A - Double-component automobile cathode electrophoretic coating - Google Patents
Double-component automobile cathode electrophoretic coating Download PDFInfo
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- CN106047051A CN106047051A CN201610382552.2A CN201610382552A CN106047051A CN 106047051 A CN106047051 A CN 106047051A CN 201610382552 A CN201610382552 A CN 201610382552A CN 106047051 A CN106047051 A CN 106047051A
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- modified epoxy
- acid
- epoxy resin
- cathode electrophoresis
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- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4434—Polyepoxides characterised by the nature of the epoxy binder
- C09D5/4438—Binder based on epoxy/amine adducts, i.e. reaction products of polyepoxides with compounds containing amino groups only
-
- 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
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4457—Polyepoxides containing special additives, e.g. pigments, polymeric particles
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention relates to the field of coatings, in particular to a double-component automobile cathode electrophoretic coating. The double-component automobile cathode electrophoretic coating is prepared from, by mass, 1-2 parts of color paste, 4-6 parts of emulsion and 5-7 parts of deionized water; the emulsion is prepared from 40-50 parts of modified epoxy resin A, 10-20 parts of modified epoxy resin B, 10-30 parts of a curing agent, 3-8 parts of single-molecule amine, 0.1-2 parts of emulgator, 0.1-2 parts of a neutralizing agent and 30-50 parts of deionized water; the modified epoxy resin A is prepared from 10-20 parts of bisphenol A, 40-60 parts of epoxy resin, 8-16 parts of solvents, 4-16 parts of plasticizer and 10-35 parts of flexible polymers; the modified epoxy resin B is prepared from 10-20 parts of bisphenol F, 40-60 parts of epoxy resin, 5-10 parts of nonyl phenol, 2-6 parts of xylene and 0.1-1 part of triphenyl phosphate; the curing agent is prepared from 20-66 parts of dimeric fatty acid, 5-18 parts of vegetable oleic acid, 5-25 parts of fatty amine, 10-34 parts of ketones, 5-20 parts of ethers and 0.01-0.02 part of a terminating agent.
Description
Technical field
The present invention relates to paint field, be specifically related to a kind of bicomponent automobile cathode electrophoresis paint.
Background technology
Come out from cathode electrophoresis dope, because its paint film formed has the corrosion resistance of excellence, mechanical performance, be suitable for again certainly
Dynamicization application, is the most quickly popularized, the baking temperature scope of traditional cathode electrophoresis dope typically 170～
180℃.At present, many industrial workpiece are with rubber, plastic or other material, it is desirable to together dry with electrophoretic coating after processing
Dry, thus reduce operative's intensity, control cost.But such material toasts under the high temperature conditions and is easily deformed or melts.
For adapting to the demand of such technique, market occurs the low temperature curing type cathode electrophoresis dope of few kind.Low temperature curing type is cloudy
Pole electrophoretic coating not only contributes to plastics and the application of the auto parts and components of rubber, and can be substantially reduced energy consumption, negative electrode
Organic leadP that electrophoretic coating was commonly used in the past and tin catalyst, due to toxicity, greatly, not environmentally etc. shortcoming is in European and flourishing state
Family limits the use of.Unleaded, Wuxi environment-friendly type high anti-corrosive properties cathode electrophoresis dope is a significant improvement in electrophoretic coating evolution.
Therefore in electrophoretic coating, select excellent environment-friendly type drier improving electrophoresis product quality, and in use improving product
Competitiveness is particularly important.
Summary of the invention
The purpose of the present invention, is the problem in order to solve in background technology, it is provided that a kind of bicomponent automobile cathode electrophoresis is coated with
Material.
The above-mentioned technical purpose of the present invention has the technical scheme that
A kind of bicomponent automobile cathode electrophoresis paint, including in parts by mass, 1-2 part mill base, 4-6 part emulsion and 5-7 part go from
Sub-water；
Described emulsion formulations includes, 40-50 part modified epoxy A, 10-20 part modified epoxy B, 10-30 part firming agent,
3-8 part unimolecule amine, 0.1-2 part emulsifying agent, 0.1-2 part nertralizer and 30-50 part deionized water；
Described modified epoxy A formula includes, 10-20 part bisphenol-A, 40-60 part epoxy resin, 8-16 part solvent, 4-16 part
Plasticizer, 10-35 part flexible polymer；
Described modified epoxy B formula includes, 10-20 part Bisphenol F, 40-60 part epoxy resin, 5-10 part nonyl phenol, 2-6 part
Dimethylbenzene, 0.1-1 part triphenyl phosphite；
Described hardener formula includes, 20-66 part dimer (fatty acid) yl, 5-18 part vegetable oil acid, 5-25 part fatty amine, 10-34
Part ketone, 5-20 part ethers, 0.01-0.02 part terminator；Described vegetable oil acid is castor oil acid, cotton oil acid, Semen Allii Tuberosi oleic acid or
One in behenic acid, described fatty amine is ethylenediamine, diethylenetriamine, triethylene tetramine, TEPA or mixed amine
One, described mixed amine is mixing two or more in aminoethyl ethanolamine, aminoethyl piperazine or triethylene tetramine, described termination
Agent is quinone, nitro polyol, nitroso-group polyol, aryl polyol or the one of boric acid.
As preferably, described paste formula includes, 20-40 part waterborne cation epoxy resin, 10-40 part color stuffing, 10-
20 parts of solvents, the nontoxic drier of 0.5-1.5 part, 0.5-2 part dispersant, 20-50 part deionized water.
As preferably, described unimolecule amine at least contains the ketimide of aminoethyl ethanolamine or the two of diethylenetriamines
One in ketimide, its consumption at least accounts for the 50% of the total consumption of unimolecule amine.
As preferably, other compositions in described unimolecule amine are butylamine, octylame, diethylamine, methylbutylamine, an ethanol
One or more in amine, diethanolamine or N-methylethanolamine.
As preferably, the epoxide equivalent of described modified epoxy A is 200～1000, the ring of described modified epoxy B
Oxygen equivalent is 600～800.
As preferably, described flexible polymer is polyether Glycols, polyester diol or polyethers diamine, its equal molecule of number
Amount is 400～1500.
As preferably, the number-average molecular weight of described modified epoxy A is 1500～3500, described modified epoxy B
Number-average molecular weight is 1200～3000.
As preferably, described plasticizer is bisphenol A polyethenoxy ether or bisphenol-A polyethenoxy ether.
As preferably, described nertralizer is formic acid, acetic acid, propanoic acid, lactic acid, oxalic acid or other organic acid.
As preferably, the ketone in described hardener formula is acetone, butanone, Ketohexamethylene, and methyl iso-butyl ketone (MIBK), methyl are different
One in propyl group ketone, methyl butyl ketone or 1-Phenylethanone., described ethers is ether, butyl cellosolve, ethylene glycol monobutyl ether
Or the one in ethyl methyl ether.
The preparation technology of this programme bicomponent automobile cathode electrophoresis paint, comprises the following steps:
Prepared by A mill base, by waterborne cation epoxy resin 20-40 part, color stuffing 10-40 part, solvent 10-20 part, nontoxic urge dry
Agent 0.5-1.5 part, dispersant 0.5-2 part, deionized water 20-50 part, put into dispersion pot, under 700-1100 rev/min after dispersion
Stand more than 8 hours, then disperse 20-40 minute under 600-800 rev/min, enter sand mill and be ground to fineness≤15 μm.
Prepared by B emulsion, 1. prepare modified epoxy A；2. modified epoxy B is prepared；3. by 40-50 part modified epoxy
After Resin A and 10-20 part modified epoxy B stirring mixing, it is heated to 100-120 DEG C, adds unimolecule amine, continue mixing
2 hours；4. drip or be dividedly in some parts 10-30 part firming agent, be incubated 1.5-2.5 hour；5. cool to 70-90 DEG C, add 0.1-2
Part emulsifying agent and 0.1-2 part nertralizer, dispersed with stirring 30-60 minute；6. cool to 30-70 DEG C, extract organic solvent, add
30-50 part deionized water, obtains emulsion after filtration, emulsion Con trolling index is, solids content 35 ± 2%, particle diameter≤0.20 μm, ph
Value 6.0 ± 0.5；
C electrophoretic paint is allocated, and adds 2-3 part deionized water and 2-3 part emulsion, start circulation mixing pump in electrophoresis tank, incite somebody to action both
Circulation mixing；In premix groove, put into 2-3 part emulsion start stirring, the most slowly put into 1-2 part mill base, stir 30 minutes
Afterwards premix groove mixed liquor is the most uniformly inputted in electrophoresis tank；Throw 3-4 part deionized water again and clean premix groove and by after cleaning
Water the most uniformly pump into electrophoresis tank, in constantly circulation, tank liquor transconversion into heat i.e. obtained carrying out the electrophoresis of application after 48 hours
Paint.
As preferably, described modified epoxy A preparation method is, by 10-20 part bisphenol-A, 40-60 part epoxy resin,
8-16 part methyl iso-butyl ketone (MIBK) is added sequentially in reactor, after stirring is warmed up to 110 DEG C of holdings 0.5-1 hour, lowers the temperature subsequently
To 90 DEG C, add 10-35 part flexible polymer, be heated to 120 DEG C carry out chain extending reaction or heating catalyst in the presence of enter
Row chain extending reaction, is incubated 2 hours；It is cooled to 100 DEG C, after 4-16 part plasticizer, is incubated 1-2 hour.
As preferably, described modified epoxy B preparation method is, by 40-60 part epoxy resin, 5-10 part nonyl phenol,
2-6 part dimethylbenzene, 10-20 part Bisphenol F are added sequentially in reactor, and stirring is warmed up to 125 DEG C；Maintain the temperature at 130 DEG C, will
0.1-1 part triphenyl phosphite furnishing pasty state in dimethylbenzene, is gradually added in reactor subsequently, controls the joining day at 0.5-
1 hour；Cool to 100 DEG C, be incubated 1-2 hour.
As preferably, described firming agent preparation method is, adds dimer (fatty acid) yl, vegetable oil in the reactor of logical nitrogen
Acid and fatty amine, then stir the mixture for 30-90 minute；Then it is warmed up to dehydration, continues to be heated to 180-280 DEG C, keep
React 1-5 hour, be cooled to 100-145 DEG C and add ketone, temperature rising reflux 1-6 hour；Backflow reheats to reclaim after terminating and dissociates
Ketone, keeps 1-3 hour to 180-230 DEG C, then evacuation, controls vacuum-0.08MPa～-0.1 MPa, keeps 1-3 little
Time；It is cooled to 180 DEG C and adds terminator, be cooled back to 100-140 DEG C, add ethers；Finally it is stirred for after adding ethers
0.5-1 hour.
In sum, beneficial effects of the present invention:
The solidification temperature of a kind of bicomponent automobile cathode electrophoresis paint the most of the present invention is 140 DEG C, and coating film thickness is at 10-
30 μm are adjustable, use nontoxic formula simultaneously, environmental friendliness and more energy-conservation.
A kind of bicomponent automobile cathode electrophoresis paint the most of the present invention, the heat stability of tank liquor is high, tank liquor electrophoresis temperature
Spending >=35 DEG C, electrodeposited paint film uniformity is good, and the breakdown voltage >=380V of coating, Ford box method records throwing power >=22cm, to work
The inner chamber film ability of part is strong.
Detailed description of the invention
Specific examples below is only explanation of the invention, and it is not limitation of the present invention, art technology
The present embodiment can be made after reading this specification by personnel as required does not has the amendment of creative contribution, but as long as
All protected by Patent Law in scope of the presently claimed invention.
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1:
A kind of bicomponent automobile cathode electrophoresis paint, including in parts by mass, 1 part of mill base, 6 parts of emulsions and 5 parts of deionized waters；
Described paste formula includes, 20 parts of waterborne cation epoxy resin, 20 parts of color stuffings, 10 parts of solvents, 0.5 part nontoxic urge dry
Agent, 0.5 part of dispersant, 30 parts of deionized waters；
Described emulsion formulations includes, 40 parts of modified epoxy A, 10 parts of modified epoxy B, 10 parts of firming agent, 3 part of two sub-second
The diketimine of base triamine and 2 parts of N-methylethanolamines, 0.1 part of emulsifying agent, 0.1 part of acetic acid and 30 parts of deionized waters；Described change
Property epoxy resin A formula includes, 10 parts of bisphenol-As, 40 parts of epoxy resin, 8 parts of solvents, 4 parts of bisphenol A polyethenoxy ethers, 10 numbers
Average molecular weight is the polyether Glycols of 400～1500；Described modified epoxy B formula includes, 10 parts of Bisphenol F, 40 parts of epoxies
Resin, 5 portions of nonyl phenols, 2 portions of dimethylbenzene, 0.1 portion of triphenyl phosphite；Described hardener formula includes, 20 parts of dimer fatty
Acid, 5 parts of castor oil acids, 5 parts of ethylenediamines, 10 parts of acetone, 5 parts of ether, 0.01 part of boric acid.
Above-mentioned bicomponent automobile cathode electrophoresis paint preparation technology, comprises the following steps:
Prepared by A mill base, by waterborne cation epoxy resin 20 parts, color stuffing 20 parts, solvent 10 parts, nontoxic drier 0.5 part, divide
Powder 0.5 part, deionized water 30 parts, put into dispersion pot, under 700-1100 rev/min, stand more than 8 hours after dispersion, then
Disperse 20-40 minute under 600-800 rev/min, enter sand mill and be ground to fineness≤15 μm.
Prepared by B emulsion, 1. prepare modified epoxy A, by 10 parts of bisphenol-As, 40 parts of epoxy resin, 8 parts of methyl-isobutyls
Ketone is added sequentially in reactor, after stirring is warmed up to 110 DEG C of holdings 0.5-1 hour, cools to 90 DEG C subsequently, adds 10 numbers
Average molecular weight is the polyether Glycols of 400～1500, be heated to 120 DEG C carry out chain extending reaction or heating catalyst in the presence of
Carry out chain extending reaction, be incubated 2 hours；It is cooled to 100 DEG C, after adding 4 parts of bisphenol A polyethenoxy ethers, is incubated 1-2 hour, obtains
The modified epoxy A that epoxide equivalent is 200～1000, number-average molecular weight is 3000；2. modified epoxy B is prepared, by 40
Part epoxy resin, 5 parts of nonyl phenols, 2 parts of dimethylbenzene, 10 parts of Bisphenol F are added sequentially in reactor, and stirring is warmed up to 125 DEG C；Protect
Hold temperature at 130 DEG C, by 0.1 part of triphenyl phosphite furnishing pasty state in dimethylbenzene, be gradually added into subsequently in reactor, control
Joining day was at 0.5-1 hour；Cool to 100 DEG C, be incubated 1-2 hour, obtain epoxide equivalent be 600～800, number-average molecular weight
It is the modified epoxy B of 2000；3. by after 40 parts of modified epoxy A and 10 parts of modified epoxy B stirring mixing, heat
To 100-120 DEG C, add diketimine and 2 parts of N-methylethanolamines, the continuation mixing 2 hours of 3 parts of diethylenetriamines；④
Dripping or be dividedly in some parts 10 parts of firming agent, being incubated 1.5-2.5 hour, wherein, described firming agent preparation method is, at logical nitrogen
Reactor adds 20 parts of dimer (fatty acid) yls, 5 parts of castor oil acids and 5 parts of ethylenediamines, then stirs the mixture for 30-90 minute；
Then it is warmed up to dehydration, continues to be heated to 180-280 DEG C, keep reaction 1-5 hour, be cooled to 100-145 DEG C and add 10 part third
Ketone, temperature rising reflux 1-6 hour；Backflow reheats after terminating and reclaims free acetone, keeps 1-3 hour to 180-230 DEG C, then takes out
Vacuum, controls vacuum-0.08MPa～-0.1 MPa, keeps 1-3 hour；It is cooled to 180 DEG C and adds 0.01 part of boric acid, colder
But arrive 100-140 DEG C, add 5 parts of ether；Finally it is stirred for after adding ether 0.5-1 hour；5. cool to 70-90 DEG C, add
Enter 0.1 part of emulsifying agent and 0.1 part of acetic acid, dispersed with stirring 30-60 minute；6. cool to 30-70 DEG C, extract organic solvent, add
30-50 part deionized water, obtains emulsion after filtration, emulsion Con trolling index is, solids content 35 ± 2%, particle diameter≤0.20 μm, ph
Value 6.0 ± 0.5；
C electrophoretic paint is allocated, and adds 2 parts of deionized waters and 3 parts of emulsions, starts circulation mixing pump, both circulated in electrophoresis tank
Mixing；In premix groove, put into 3 parts of emulsions start stirring, the most slowly put into 1 part of mill base, will be pre-after stirring 30 minutes
Mixed groove mixed liquor the most uniformly inputs in electrophoresis tank；Throw the water after 3 parts of deionized waters clean premix groove and will clean again the most equal
Even pumping into electrophoresis tank, in constantly circulation, tank liquor transconversion into heat i.e. obtained carrying out the electrophoretic paint of application after 48 hours.
Embodiment 2:
A kind of bicomponent automobile cathode electrophoresis paint, including in parts by mass, 2 parts of mill bases, 6 parts of emulsions and 7 parts of deionized waters；
Described paste formula includes, 30 parts of waterborne cation epoxy resin, 40 parts of color stuffings, 20 parts of solvents, and 1.5 parts nontoxic
Drier, 2 parts of dispersants, 50 parts of deionized waters；
Described emulsion formulations includes, 50 parts of modified epoxy A, 20 parts of modified epoxy B, 30 parts of firming agent, 4 parts of aminoethyls
The ketimide of ethanolamine and 3 parts of diethanolamine, 2 parts of emulsifying agents, 1 part of acetic acid and 50 parts of deionized waters；Described modified epoxy A
Formula includes, 20 parts of bisphenol-As, 60 parts of epoxy resin, 16 parts of solvents, 16 parts of bisphenol-A polyethenoxy ethers, 35 number average molecular weights are
The polyethers diamine of 400～1500；Described modified epoxy B formula includes, 20 parts of Bisphenol F, 60 parts of epoxy resin, 10 parts of nonyls
Base phenol, 6 portions of dimethylbenzene, 1 portion of triphenyl phosphite；Described hardener formula includes, 66 parts of dimer (fatty acid) yls, 18 portions of Oleum Brassicae campestriss
Acid, 25 parts of triethylene tetramines, 34 parts of acetone, 20 parts of butyl cellosolves, 0.02 part of boric acid；
Above-mentioned bicomponent automobile cathode electrophoresis paint preparation technology, comprises the following steps:
Prepared by A mill base, by waterborne cation epoxy resin 30 parts, color stuffing 40 parts, solvent 20 parts, nontoxic drier 1.5 parts, divide
Powder 2 parts, deionized water 50 parts, put into dispersion pot, under 700-1100 rev/min, stand more than 8 hours after dispersion, then at 600-
Disperse 20-40 minute under 800 revs/min, enter sand mill and be ground to fineness≤15 μm.
Prepared by B emulsion, 1. prepare modified epoxy A, by 20 parts of bisphenol-As, 60 parts of epoxy resin, 16 parts of methyl-isobutyls
Ketone is added sequentially in reactor, after stirring is warmed up to 110 DEG C of holdings 0.5-1 hour, cools to 90 DEG C subsequently, adds 35 numbers
Average molecular weight is the polyether Glycols of 400～1500, be heated to 120 DEG C carry out chain extending reaction or heating catalyst in the presence of
Carry out chain extending reaction, be incubated 2 hours；It is cooled to 100 DEG C, after adding 16 parts of bisphenol-A polyethenoxy ethers, is incubated 1-2 hour, obtains
The modified epoxy A that epoxide equivalent is 200～1000, number-average molecular weight is 2400；2. modified epoxy B is prepared, by 60
Part epoxy resin, 10 parts of nonyl phenols, 6 parts of dimethylbenzene, 20 parts of Bisphenol F are added sequentially in reactor, and stirring is warmed up to 125 DEG C；
Maintain the temperature at 130 DEG C, by 1 part of triphenyl phosphite furnishing pasty state in dimethylbenzene, be gradually added into subsequently in reactor, control
Joining day was at 0.5-1 hour；Cool to 100 DEG C, be incubated 1-2 hour, obtain epoxide equivalent be 600～800, number-average molecular weight
It is the modified epoxy B of 1600；3. by after 50 parts of modified epoxy A and 20 parts of modified epoxy B stirring mixing, heat
To 100-120 DEG C, add ketimide and 3 parts of diethanolamine, the continuation mixing 2 hours of 4 parts of aminoethyl ethanolamines；4. dropping or
Being dividedly in some parts 30 parts of firming agent, be incubated 1.5-2.5 hour, wherein, described firming agent preparation method is, at the reactor of logical nitrogen
66 parts of dimer (fatty acid) yls of middle addition, 18 parts of Semen Allii Tuberosi oleic acid and 25 parts of triethylene tetramines, then stir the mixture for 30-90 minute；
Then it is warmed up to dehydration, continues to be heated to 180-280 DEG C, keep reaction 1-5 hour, be cooled to 100-145 DEG C and add 10 part third
Ketone, temperature rising reflux 1-6 hour；Backflow reheats after terminating and reclaims free acetone, keeps 1-3 hour to 180-230 DEG C, then takes out
Vacuum, controls vacuum-0.08MPa～-0.1 MPa, keeps 1-3 hour；It is cooled to 180 DEG C and adds 0.02 part of boric acid, colder
But arrive 100-140 DEG C, add 20 parts of butyl cellosolves；Finally it is stirred for after adding ether 0.5-1 hour；5. cool to
70-90 DEG C, add 2 parts of emulsifying agents and 1 part of acetic acid, dispersed with stirring 30-60 minute；6. cool to 30-70 DEG C, extract organic molten
Agent, adds 30-50 part deionized water, obtains emulsion after filtration, and emulsion Con trolling index is, solids content 35 ± 2%, and particle diameter≤
0.20 μm, ph value 6.0 ± 0.5；
C electrophoretic paint is allocated, and adds 3 parts of deionized waters and 3 parts of emulsions, starts circulation mixing pump, both circulated in electrophoresis tank
Mixing；In premix groove, put into 3 parts of emulsions start stirring, the most slowly put into 2 parts of mill bases, will be pre-after stirring 30 minutes
Mixed groove mixed liquor the most uniformly inputs in electrophoresis tank；Throw the water after 4 parts of deionized waters clean premix groove and will clean again the most equal
Even pumping into electrophoresis tank, in constantly circulation, tank liquor transconversion into heat i.e. obtained carrying out the electrophoretic paint of application after 48 hours.
Embodiment 3:
A kind of bicomponent automobile cathode electrophoresis paint, including in parts by mass, 1 part of mill base, 5 parts of emulsions and 6 parts of deionized waters；
Described paste formula includes, 35 parts of waterborne cation epoxy resin, 25 parts of color stuffings, 15 parts of solvents, 0.7 part nontoxic urge dry
Agent, 1 part of dispersant, 40 parts of deionized waters；
Described emulsion formulations includes, 45 parts of modified epoxy A, 15 parts of modified epoxy B, 20 parts of firming agent, 4 parts of aminoethyls
The ketimide of ethanolamine and 3 parts of diethanolamine, 0.8 part of emulsifying agent, 0.5 part of acetic acid and 40 parts of deionized waters；Described modified epoxy
Resin A formula includes, 15 parts of bisphenol-As, 50 parts of epoxy resin, 12 parts of solvents, 10 parts of bisphenol-A polyethenoxy ethers, 25 numbers are divided equally
Son amount is the polyethers diamine of 400～1500；Described modified epoxy B formula includes, 15 parts of Bisphenol F, 50 parts of epoxy resin,
7 portions of nonyl phenols, 4 portions of dimethylbenzene, 0.5 portion of triphenyl phosphite；Described hardener formula includes, 43 parts of dimer (fatty acid) yls, 12
Part Semen Allii Tuberosi oleic acid, 15 parts of triethylene tetramines, 27 parts of acetone, 16 parts of butyl cellosolves, 0.01 part of boric acid；
Above-mentioned bicomponent automobile cathode electrophoresis paint preparation technology, comprises the following steps:
Prepared by A mill base, by waterborne cation epoxy resin 35 parts, color stuffing 25 parts, solvent 15 parts, nontoxic drier 0.7 part, divide
Powder 1 part, deionized water 40 parts, put into dispersion pot, under 700-1100 rev/min, stand more than 8 hours after dispersion, then at 600-
Disperse 20-40 minute under 800 revs/min, enter sand mill and be ground to fineness≤15 μm.
Prepared by B emulsion, 1. prepare modified epoxy A, by 15 parts of bisphenol-As, 50 parts of epoxy resin, 12 parts of methyl-isobutyls
Ketone is added sequentially in reactor, after stirring is warmed up to 110 DEG C of holdings 0.5-1 hour, cools to 90 DEG C subsequently, adds 25 numbers
Average molecular weight is the polyether Glycols of 400～1500, be heated to 120 DEG C carry out chain extending reaction or heating catalyst in the presence of
Carry out chain extending reaction, be incubated 2 hours；It is cooled to 100 DEG C, after adding 10 parts of bisphenol-A polyethenoxy ethers, is incubated 1-2 hour, obtains
The modified epoxy A that epoxide equivalent is 200～1000, number-average molecular weight is 1500～3500；2. modified epoxy is prepared
50 parts of epoxy resin, 7 parts of nonyl phenols, 4 parts of dimethylbenzene, 15 parts of Bisphenol F are added sequentially in reactor by B, and stirring is warmed up to
125℃；Maintain the temperature at 130 DEG C, by 0.5 part of triphenyl phosphite furnishing pasty state in dimethylbenzene, be gradually added into reaction subsequently
In still, control the joining day at 0.5-1 hour；Cool to 100 DEG C, be incubated 1-2 hour, obtain epoxide equivalent be 600～800,
Number-average molecular weight is the modified epoxy B of 1200～3000；3. by 45 parts of modified epoxy A and 15 parts of modified epoxies
After B stirring mixing, it is heated to 100-120 DEG C, adds the ketimide of 4 parts of aminoethyl ethanolamines and 3 parts of diethanolamine, continue mixed
Close 2 hours；4. dripping or be dividedly in some parts 20 parts of firming agent, be incubated 1.5-2.5 hour, wherein, described firming agent preparation method is,
43 parts of dimer (fatty acid) yls, 12 parts of Semen Allii Tuberosi oleic acid and 15 parts of triethylene tetramines are added in the reactor of logical nitrogen, then will mixing
Thing stirs 30-90 minute；Then it is warmed up to dehydration, continues to be heated to 180-280 DEG C, keep reaction 1-5 hour, be cooled to 100-
145 DEG C add 27 parts of acetone, temperature rising reflux 1-6 hour；Backflow reheats after terminating and reclaims free acetone, to 180-230 DEG C
Keep 1-3 hour, then evacuation, control vacuum-0.08MPa～-0.1 MPa, keep 1-3 hour；It is cooled to 180 DEG C of additions
0.01 part of boric acid, is cooled back to 100-140 DEG C, adds 16 parts of butyl cellosolves；Finally after adding ether, it is stirred for 0.5-1
Hour；5. cool to 70-90 DEG C, add 0.8 part of emulsifying agent and 0.5 part of acetic acid, dispersed with stirring 30-60 minute；6. 30-is cooled to
70 DEG C, extracting organic solvent, add 30-50 part deionized water, obtain emulsion after filtration, emulsion Con trolling index is, solids content
35 ± 2%, particle diameter≤0.20 μm, ph value 6.0 ± 0.5；
C electrophoretic paint is allocated, and adds 3 parts of deionized waters and 2 parts of emulsions, starts circulation mixing pump, both circulated in electrophoresis tank
Mixing；In premix groove, put into 3 parts of emulsions start stirring, the most slowly put into 1 part of mill base, will be pre-after stirring 30 minutes
Mixed groove mixed liquor the most uniformly inputs in electrophoresis tank；Throw the water after 3 parts of deionized waters clean premix groove and will clean again the most equal
Even pumping into electrophoresis tank, in constantly circulation, tank liquor transconversion into heat i.e. obtained carrying out the electrophoretic paint of application after 48 hours.
Table 1 is the film performance table of 3 embodiments of the present invention and conventional cathode electrophoretic paint
Claims (10)
1. a bicomponent automobile cathode electrophoresis paint, including mill base, emulsion and deionized water, it is characterised in that by mass parts
Meter, described electrophoretic coating includes, 1-2 part mill base, 4-6 part emulsion and 5-7 part deionized water；
Described emulsion formulations includes, 40-50 part modified epoxy A, 10-20 part modified epoxy B, 10-30 part firming agent,
3-8 part unimolecule amine, 0.1-2 part emulsifying agent, 0.1-2 part nertralizer and 30-50 part deionized water；
Described modified epoxy A formula includes, 10-20 part bisphenol-A, 40-60 part epoxy resin, 8-16 part solvent, 4-16 part
Plasticizer, 10-35 part flexible polymer；
Described modified epoxy B formula includes, 10-20 part Bisphenol F, 40-60 part epoxy resin, 5-10 part nonyl phenol, 2-6 part
Dimethylbenzene, 0.1-1 part triphenyl phosphite；
Described hardener formula includes, 20-66 part dimer (fatty acid) yl, 5-18 part vegetable oil acid, 5-25 part fatty amine, 10-34
Part ketone, 5-20 part ethers, 0.01-0.02 part terminator；Described vegetable oil acid is castor oil acid, cotton oil acid, Semen Allii Tuberosi oleic acid or
One in behenic acid, described fatty amine is ethylenediamine, diethylenetriamine, triethylene tetramine, TEPA or mixed amine
One, described mixed amine is mixing two or more in aminoethyl ethanolamine, aminoethyl piperazine or triethylene tetramine, described termination
Agent is quinone, nitro polyol, nitroso-group polyol, aryl polyol or the one of boric acid.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 1, it is characterised in that described paste formula bag
Include, 20-40 part waterborne cation epoxy resin, 10-40 part color stuffing, 10-20 part solvent, the nontoxic drier of 0.5-1.5 part,
0.5-2 part dispersant, 20-50 part deionized water.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 2, it is characterised in that in described unimolecule amine
At least containing the one in the ketimide of aminoethyl ethanolamine or the diketimine of diethylenetriamines, its consumption at least accounts for list
The 50% of the total consumption of molecular amine.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 3, it is characterised in that in described unimolecule amine
Other compositions be the one in butylamine, octylame, diethylamine, methylbutylamine, monoethanolamine, diethanolamine or N-methylethanolamine
Or it is several.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 4, it is characterised in that described modified epoxy tree
The epoxide equivalent of fat A is 200～1000, and the epoxide equivalent of described modified epoxy B is 600～800.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 4, it is characterised in that described flexible polymer
For polyether Glycols, polyester diol or polyethers diamine, its number-average molecular weight is 400～1500.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 6, it is characterised in that described modified epoxy tree
The number-average molecular weight of fat A is 1500～3500, and described modified epoxy B number-average molecular weight is 1200～3000.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 7, it is characterised in that described plasticizer is double
Phenol A polyoxyethylene ether or bisphenol-A polyethenoxy ether.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 8, it is characterised in that described nertralizer is first
Acid, acetic acid, propanoic acid, lactic acid, oxalic acid or other organic acid.
A kind of bicomponent automobile cathode electrophoresis paint the most according to claim 9, it is characterised in that described firming agent is joined
In side ketone be acetone, butanone, Ketohexamethylene, in methyl iso-butyl ketone (MIBK), methyl isopropyl Ketone, methyl butyl ketone or 1-Phenylethanone.
One, described ethers is the one in ether, butyl cellosolve, ethylene glycol monobutyl ether or ethyl methyl ether.
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| CN201610382552.2A CN106047051A (en) | 2016-06-02 | 2016-06-02 | Double-component automobile cathode electrophoretic coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065256A (en) * | 2016-06-02 | 2016-11-02 | 广德县中银化工有限责任公司 | A kind of bicomponent automobile cathode electrophoresis paint and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294141A (en) * | 2001-03-29 | 2002-10-09 | Nippon Paint Co Ltd | Cationic electrodeposition coating material composition |
| CN101054487A (en) * | 2007-04-30 | 2007-10-17 | 袁兴 | Method of preparing low temperature solidifying environment protection type cathode electrophoresis coating |
| CN101368057A (en) * | 2008-09-25 | 2009-02-18 | 江泽平 | High-performance 150 DEG C oven dry type bi-component epoxy-polyurethane cathode electrophoretic paint |
| CN101602854A (en) * | 2009-07-23 | 2009-12-16 | 福州百盛精细化学品有限公司 | A kind of daiamid epoxy curing agent and preparation method thereof |
| CN102838846A (en) * | 2012-09-26 | 2012-12-26 | 中国海洋石油总公司 | Resin emulsion for cathode electrophoretic coating with high throwing power and preparation method thereof |
| CN103965760A (en) * | 2014-05-07 | 2014-08-06 | 广东科德化工实业有限公司 | Cathode electrophoretic paint containing environmental-friendly type drier and preparation and use method thereof |
| CN106065256A (en) * | 2016-06-02 | 2016-11-02 | 广德县中银化工有限责任公司 | A kind of bicomponent automobile cathode electrophoresis paint and preparation method thereof |
-
2016
- 2016-06-02 CN CN201610382552.2A patent/CN106047051A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294141A (en) * | 2001-03-29 | 2002-10-09 | Nippon Paint Co Ltd | Cationic electrodeposition coating material composition |
| CN101054487A (en) * | 2007-04-30 | 2007-10-17 | 袁兴 | Method of preparing low temperature solidifying environment protection type cathode electrophoresis coating |
| CN101368057A (en) * | 2008-09-25 | 2009-02-18 | 江泽平 | High-performance 150 DEG C oven dry type bi-component epoxy-polyurethane cathode electrophoretic paint |
| CN101602854A (en) * | 2009-07-23 | 2009-12-16 | 福州百盛精细化学品有限公司 | A kind of daiamid epoxy curing agent and preparation method thereof |
| CN102838846A (en) * | 2012-09-26 | 2012-12-26 | 中国海洋石油总公司 | Resin emulsion for cathode electrophoretic coating with high throwing power and preparation method thereof |
| CN103965760A (en) * | 2014-05-07 | 2014-08-06 | 广东科德化工实业有限公司 | Cathode electrophoretic paint containing environmental-friendly type drier and preparation and use method thereof |
| CN106065256A (en) * | 2016-06-02 | 2016-11-02 | 广德县中银化工有限责任公司 | A kind of bicomponent automobile cathode electrophoresis paint and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065256A (en) * | 2016-06-02 | 2016-11-02 | 广德县中银化工有限责任公司 | A kind of bicomponent automobile cathode electrophoresis paint and preparation method thereof |
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