CN106497340A - A kind of energy-saving low-temperature cathode electrodip painting and preparation method and application - Google Patents
A kind of energy-saving low-temperature cathode electrodip painting and preparation method and application Download PDFInfo
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- CN106497340A CN106497340A CN201611100810.XA CN201611100810A CN106497340A CN 106497340 A CN106497340 A CN 106497340A CN 201611100810 A CN201611100810 A CN 201611100810A CN 106497340 A CN106497340 A CN 106497340A
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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
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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
- 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
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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
- 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
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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
- 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
- C09D5/4465—Polyurethanes
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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
- 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
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of energy-saving low-temperature cathode electrodip painting and preparation method and application, it is grouped into by the matrix resin 20 40 of parts by weight, pH value regulator 12, emulsifying agent 0.5 1.5, deionized water 40 50,15 25 one-tenth of water-based emulsion.Wherein matrix resin is made up of the epoxy resin 30 40 of following parts by weight, cosolvent 10 20, amine type hardeners 37, ketimide 10 20, Low Temperature Cathodic Electrophoretic Paint cross-linking agent 25 35,14 parts of pH value regulator.In terms of Low Temperature Cathodic Electrophoretic Paint disclosed by the invention is mainly used in the application of body of a motor car and its parts.Experimental result confirms：Low Temperature Cathodic Electrophoretic Paint solves the low temperature dissociative of carbimide, and three big key problem in technology problem of the surface smoothness of low-temperature setting film and paint stability, it is achieved that the reduction of cathode electrodip painting solidification temperature has been saved the energy, reduced painting cost.
Description
Technical field
The invention belongs to the application techniques field of body of a motor car and its parts, be related to energy-saving low-temperature cathode electrodip painting and
Its preparation method and application.
Background technology
Electrophoretic painting has corrosion resistance coating excellent, and covering power is good, coating equipment high degree of automation, and pollution is few,
The features such as utilization efficiency of coatings is high, is a kind of application mode of environment-friendly and high-performance, is widely used in painting dressing automobiles field.
But common cathode electrophoresis dope need to be toasted under 180 DEG C/30min high temperature, not only drying cost is high, expends energy
Source, it is often more important that coated article or because straining under high temperature, or bakee impermeable because thermal capacity is big.Therefore, as environmental protection and energy saving are anticipated
The continuous enhancing that knows, all the more urgent hope energy-saving low-temperature of people solidify appearing on the market for cathode electrodip painting.
Although the developmental research of country's cathode electrophoresis dope has done a lot of work at present, but the technique of maturation yet there are no, and open
The key problem in technology for sending out coating this kind of is to seek novel crosslinker, develops special low temperature resin, to reduce its solidification temperature.
Content of the invention
The present invention is studied to crosslinked at low temperature agent, epoxy resin and sclerosing agent and comprehensive use, have developed energy-saving
Low Temperature Cathodic Electrophoretic Paint, is adapted to the application of body of a motor car and its parts, solves the low temperature dissociative of carbimide, low temperature
Three big key problem in technology problem of the surface smoothness of cured coating film and paint stability, it is achieved that the drop of cathode electrodip painting solidification temperature
Low, the energy has been saved, painting cost has been reduced.
The technology contents of the present invention are as follows：
A kind of energy-saving low-temperature cathode electrodip painting, it is characterised in that it is into being grouped into by following portions by weight：
Matrix resin 20-40 pH value regulators 1-2
Emulsifying agent 0.5-1.5 deionized water 40-50
Water-based emulsion 15-25
Described matrix resin is by following portions by weight into being grouped into
Epoxy resin 30-40 cosolvent 10-20
Amine type hardeners 3-7 ketimide 10-20
Low Temperature Cathodic Electrophoretic Paint cross-linking agent 25-35 pH value regulators 1-4
Described epoxy resin is referred to:601 resins or 604 resins；
Cosolvent is referred to:Propylene glycol monomethyl ether, propylene-glycol ethyl ether or butyl glycol ether；
Amine type hardeners are referred to:Triethanolamine, diethanolamine or diethylamine；
Ketimide is referred to:BS-8155 epoxy hardeners or DJ2425 epoxy hardeners；
PH value regulator is referred to:Acetic acid or lactic acid；
Emulsifying agent is referred to:Alkyl imidazoline, OP-10 or phenethyl phenol polyethenoxy ether
Water-based emulsion is referred to：EW2138/35WA (the profound new resins of Allnex)
Described Low Temperature Cathodic Electrophoretic Paint cross-linking agent is by following portions by weight into being grouped into
Isocyanates 35-45 catalyst 0.4-0.8
Sealer 35-45 polyether resin 15-25；
Described isocyanates refer to toluene di-isocyanate(TDI) or methyl diphenylene diisocyanate；
Catalyst refers to pyrovinic acid bismuth or dibutyl tin laurate；
Sealer refers to methyl ethyl ketoxime or malonic acid hydroxyl ethyl ester；
Polyether resin refers to polyethers 330n or polyethers 3050.
The present invention further discloses the preparation method of energy-saving low-temperature cathode electrodip painting, it is characterised in that by following step
Suddenly carry out：
Matrix resin：
（1）Epoxy resin, cosolvent are added sequentially in reactor, 90 ± 2 DEG C are warming up to, stirring is started, at 900 revs/min
Lower stirring is until resin is completely dissolved；
（2）Amine type hardeners are added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C；
（3）Ketimide is added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C；
（4）Low temperature electrophoretic paint cross-linking agent is added in reactor, temperature control is stirred 1 hour at 60 ± 2 DEG C；
（5）PH value is adjusted with pH value regulator, is controlled in pH value 5.5-5.7, temperature control stirs at 60 ± 2 DEG C；
Energy-saving low-temperature cathode electrodip painting：
（1）During matrix resin, 1/2 amount part pH adjusting agent, emulsifying agent are added sequentially to feed basin, start stirring, 900 turns/
Under point, stirring half an hour, is uniformly dispersed, makes premix thing standby；
（2）Deionized water is added in emulsion tank, stirring is started, is slowly added under 600 revs/min（1）Premix, adds
Continue stirring 1 hour afterwards；
（3）Water-based emulsion is added in emulsion tank, is stirred under 200 revs/min；
（4）PH value is adjusted with remaining 1/2 amount part pH adjusting agent, is controlled in pH value 5.0-5.2, with going in right amount after pH value is qualified
Ionized water is adjusted.
The present invention further discloses energy-saving low-temperature cathode electrodip painting in the painting for body of a motor car and its parts
Application in terms of dress.Surface smoothness and the coating stabilization of film are particularly taken into account while carbimide deblocking temperature is reduced
Application in terms of property.Experimental result confirms：The energy-saving low-temperature cathode electrodip painting of the present invention, is adapted to body of a motor car and its zero
The application of part, solves the low temperature dissociative of carbimide, and the surface smoothness of low-temperature setting film and paint stability three are big
Key problem in technology problem, it is achieved that the reduction of cathode electrodip painting solidification temperature, has saved the energy, has reduced painting cost.
Energy-saving low-temperature cathode electrodip painting disclosed by the invention and preparation method and application and existing cathode electrodip painting phase
Good effect than having is：
（1）Energy-saving low-temperature cathode electrodip painting of the present invention is water paint, and voc contents meet state's family property far below 420 grams per liters
Industry policy, safety and environmental protection, to environment and operator's fanout free region.
（2）The solidification temperature of 180 DEG C/30min of conventional cathode electrophoretic paint is reduced to 140 DEG C/30min by the present invention, is reduced
Painting cost, energy saving.
（3）The present invention heavy metal such as not leaded, does not therefore need the Waste Water Treatment of leaded class, and to any UF loading amounts
Can be suitable for without causing the blocking to UF films.
（4）The present invention still has the general advantage of conventional electrophoretic paint, and such as corrosion resistance coating can be excellent, and utilization efficiency of coatings is high
Deng.
Product purpose：It is widely used in the application of body of a motor car and its parts, plays protection and decoration function.
Specific embodiment
Below by the specific embodiment narration present invention.Unless stated otherwise, technological means used in the present invention
It is method known in those skilled in the art.In addition, embodiment be interpreted as illustrative, and unrestricted the present invention
Scope, the spirit and scope of the invention are limited only by the claims that follow.To those skilled in the art, without departing substantially from this
On the premise of invention spirit and scope, various changes that the material component and consumption in these embodiments is carried out are changed
Belong to protection scope of the present invention.Raw materials used and reagent of the invention is commercially available.
Embodiment 1：
Matrix resin：
Energy-saving low-temperature cathode electrodip painting：
Wherein raw material is：
1 epoxy resin:601 resins, 604 resins are first-selected：601 resins（Three wooden chemical industry）
2 cosolvents：Propylene glycol monomethyl ether, propylene-glycol ethyl ether, butyl glycol ether, isopropanol, n-butyl alcohol, butyl are first
Choosing：Propylene glycol monomethyl ether, propylene-glycol ethyl ether, butyl glycol ether；
3 amine type hardeners：Triethanolamine, diethanolamine, diethylamine are first-selected：Triethanolamine, diethanolamine
4 ketimides：BS-8155 epoxy hardeners, DJ2425 epoxy hardeners（Shandong De Yuan）, first-selected：BS-8155 epoxies are solid
Agent（Foochow Parkson）
5 pH value regulators：Acetic acid, lactic acid are first-selected：Acetic acid
6 emulsifying agents：Alkyl imidazoline, OP-10, phenethyl phenol polyethenoxy ether are first-selected：Alkyl imidazoline, OP-10
7 water-based emulsions：EW2138/35WA (the profound new resins of Allnex)
8 Low Temperature Cathodic Electrophoretic Paint cross-linking agent：Low Temperature Cathodic Electrophoretic Paint cross-linking agent（Tianjin Ke Ruida coating）
Manufacturing process：
Matrix resin：
（1）Formula epoxy resin 601, cosolvent is added sequentially in reactor, 90 ± 2 DEG C are warming up to, stirring is started,
Stirring under 900 revs/min is until resin is completely dissolved.
（2）Amine type hardeners in formula are added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C.
（3）BS-8155 epoxy hardeners in formula are added in reactor, temperature control stirs 1 at 117 ± 2 DEG C
Hour.
（4）Low Temperature Cathodic Electrophoretic Paint cross-linking agent in formula one is added in reactor, temperature control at 60 ± 2 DEG C,
Stirring 1 hour.
（5）With the second acid for adjusting pH value in formula one, control in pH value 5.5-5.7, temperature control is stirred at 60 ± 2 DEG C
Uniformly.
Energy-saving low-temperature electrophoretic paint：
（1）By the matrix resin in formula, acetic acid（1/2 amount part）, during emulsifying agent is added sequentially to feed basin, start stirring,
Stir half an hour under 900 revs/min, be uniformly dispersed, make premix thing standby.
（2）Deionized water in formula two is added in emulsion tank, stirring is started, is slowly added under 600 revs/min pre-
1., after adding mixture continues stirring 1 hour.
（3）Water-based emulsion EW2138/35WA in formula is added in emulsion tank, is stirred under 200 revs/min.
（4）Use remaining acetic acid（1/2 amount）PH value is adjusted, is controlled in pH value 5.0-5.2, with going in right amount after pH value is qualified
Ionized water adjusts solids content to 35 ± 2%, makes energy-saving low-temperature electrophoretic paint.
Wherein described Low Temperature Cathodic Electrophoretic Paint cross-linking agent（Tianjin Ke Ruida coating is provided）Preparation method as follows：
（1）Formula（Mass parts）：
Wherein raw material is：
1 isocyanates：Toluene di-isocyanate(TDI), methyl diphenylene diisocyanate.First-selected：Toluene di-isocyanate(TDI)（BASF）
2 catalyst：Pyrovinic acid bismuth, dibutyl tin laurate are first-selected：Pyrovinic acid bismuth
3 sealers：Methyl ethyl ketoxime, malonic acid hydroxyl ethyl ester are first-selected：Methyl ethyl ketoxime
4 polyether resins：Polyethers 330n, polyethers 3050 are first-selected：Polyethers 330n（Three factory of Plant of Tianjin Petrochemical Company）
（2）Manufacturing process：
1）Isocyanates in formula, catalyst are added sequentially in reactor, stirring is started, and 10 are stirred under 900 revs/min
Minute, it is uniformly dispersed.
2）Sealer in formula is added in another dropping tank, is slowly added dropwise in reactor under agitation, is opened temperature lowering water,
Control temperature is kept for 1 hour at 70 ± 2 DEG C after being added dropwise to complete in the range of 50 DEG C.
3）Sample from reactor, determine nco value, nco value is as qualified in 4-10.
4）After nco value is qualified, the polyether resin in formula is added in reactor, temperature control at 90 ± 2 DEG C,
Stir 2 hours under 900 revs/min.
5）Sample from reactor, determine nco value, nco value is as qualified less than 4.Standby.
6）Low-temperature cathode cross-linking agent technical specification：
Embodiment 2：
Matrix resin：
Energy-saving low-temperature cathode electrodip painting：
Wherein raw material is：
1 epoxy resin:601 resins, 604 resins are first-selected：601 resins（Three wooden chemical industry）
2 cosolvents：Propylene glycol monomethyl ether, propylene-glycol ethyl ether, butyl glycol ether, isopropanol, n-butyl alcohol, butyl are first
Choosing：Propylene glycol monomethyl ether, propylene-glycol ethyl ether, butyl glycol ether
3 amine type hardeners：Triethanolamine, diethanolamine, diethylamine are first-selected：Triethanolamine, diethanolamine
4 ketimides：BS-8155 epoxy hardeners, DJ2425 epoxy hardeners（Shandong De Yuan）, first-selected：BS-8155 epoxies are solid
Agent（Foochow Parkson）
5 pH value regulators：Acetic acid, lactic acid are first-selected：Acetic acid
6 emulsifying agents：Alkyl imidazoline, OP-10, phenethyl phenol polyethenoxy ether are first-selected：Alkyl imidazoline, OP-10
7 water-based emulsions：EW2138/35WA (the profound new resins of Allnex)
8 Low Temperature Cathodic Electrophoretic Paint cross-linking agent：Low Temperature Cathodic Electrophoretic Paint cross-linking agent（Tianjin Ke Ruida coating, is shown in 1 part of embodiment）
Manufacturing process：
Matrix resin：
（1）Formula epoxy resin 601, cosolvent is added sequentially in reactor, 90 ± 2 DEG C are warming up to, stirring is started,
Stirring under 900 revs/min is until resin is completely dissolved.
（2）Amine type hardeners in formula are added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C.
（3）BS-8155 epoxy hardeners in formula are added in reactor, temperature control stirs 1 at 117 ± 2 DEG C
Hour.
（4）Low Temperature Cathodic Electrophoretic Paint cross-linking agent in formula one is added in reactor, temperature control at 60 ± 2 DEG C,
Stirring 1 hour.
（5）With the second acid for adjusting pH value in formula one, control in pH value 5.5-5.7, temperature control is stirred at 60 ± 2 DEG C
Uniformly.
Energy-saving low-temperature cathode electrodip painting：
（1）By the matrix resin in formula, acetic acid（1/2 amount part）, during emulsifying agent is added sequentially to feed basin, start stirring,
Stir half an hour under 900 revs/min, be uniformly dispersed, make premix thing standby.
（2）Deionized water in formula two is added in emulsion tank, stirring is started, is slowly added under 600 revs/min pre-
1., after adding mixture continues stirring 1 hour.
（3）Water-based emulsion EW2138/35WA in formula is added in emulsion tank, is stirred under 200 revs/min.
（4）Use remaining acetic acid（1/2 amount）PH value is adjusted, is controlled in pH value 5.0-5.2, with going in right amount after pH value is qualified
Ionized water adjusts solids content to 35 ± 2%, makes energy-saving low-temperature cathode electrodip painting.
The key technical indexes
3 construction application example of embodiment
Energy-saving low-temperature cathode electrodip painting presses 1 with deionized water：1 proportions in electrophoresis tank, cycle balance.By phosphatization mistake
Auto parts and components be completely immersed in electrophoresis tank, connect power cathode, positive pole is connected on positive plate, is powered 240 volts 3 points
Clock.After the completion of electrophoresis, workpiece moves to rinsing area, the floating to the greatest extent paint of deionized water punching, drip liquid, dry up after, under the conditions of 130-140 DEG C
Dry 30min.
Embodiment 4
The service condition and effect of energy-saving low-temperature cathode electrodip painting：
Conclusion：
（1）The present invention can be at 140 DEG C（30min）Solidification, is applied to the field of coating of body of a motor car and its parts.
（2）The present invention has good paint stability, and the paint film flat smooth of gained, its paint film property can reach typically
The technical specification of electrophoretic paint.
（3）The present invention because of the reduction of solidification temperature, can energy saving, reduce painting cost.
Claims (4)
1. a kind of energy-saving low-temperature cathode electrodip painting, it is characterised in that it is into being grouped into by following portions by weight：
Matrix resin 20-40 pH value regulators 1-2
Emulsifying agent 0.5-1.5 deionized water 40-50
Water-based emulsion 15-25
Described matrix resin is by following portions by weight into being grouped into
Epoxy resin 30-40 cosolvent 10-20
Amine type hardeners 3-7 ketimide 10-20
Low Temperature Cathodic Electrophoretic Paint cross-linking agent 25-35 pH value regulators 1-4
Described epoxy resin is referred to:601 resins or 604 resins；
Cosolvent is referred to:Propylene glycol monomethyl ether, propylene-glycol ethyl ether or butyl glycol ether；
Amine type hardeners are referred to:Triethanolamine, diethanolamine or diethylamine；
Ketimide is referred to:BS-8155 epoxy hardeners or DJ2425 epoxy hardeners；
PH value regulator is referred to:Acetic acid or lactic acid；
Emulsifying agent is referred to:Alkyl imidazoline, OP-10 or phenethyl phenol polyethenoxy ether
Water-based emulsion is referred to：EW2138/35WA
Described Low Temperature Cathodic Electrophoretic Paint cross-linking agent is by following portions by weight into being grouped into
Isocyanates 35-45 catalyst 0.4-0.8
Sealer 35-45 polyether resin 15-25；
Described isocyanates refer to toluene di-isocyanate(TDI) or methyl diphenylene diisocyanate；
Catalyst refers to pyrovinic acid bismuth or dibutyl tin laurate；
Sealer refers to methyl ethyl ketoxime or malonic acid hydroxyl ethyl ester；
Polyether resin refers to polyethers 330n or polyethers 3050.
2. the preparation method of energy-saving low-temperature cathode electrodip painting described in claim 1, it is characterised in that carry out by the steps：
Matrix resin：
（1）Epoxy resin, cosolvent are added sequentially in reactor, 90 ± 2 DEG C are warming up to, stirring is started, at 900 revs/min
Lower stirring is until resin is completely dissolved；
（2）Amine type hardeners are added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C；
（3）Ketimide is added in reactor, temperature control is stirred 1 hour at 117 ± 2 DEG C；
（4）Low Temperature Cathodic Electrophoretic Paint cross-linking agent is added in reactor, temperature control is stirred 1 hour at 60 ± 2 DEG C；
（5）PH value is adjusted with pH value regulator, is controlled in pH value 5.5-5.7, temperature control stirs at 60 ± 2 DEG C；
Energy-saving low negative electrode temperature electrophoretic paint：
（1）During matrix resin, 1/2 amount part pH adjusting agent, emulsifying agent are added sequentially to feed basin, start stirring, 900 turns/
Under point, stirring half an hour, is uniformly dispersed, makes premix thing standby；
（2）Deionized water is added in emulsion tank, stirring is started, is slowly added under 600 revs/min（1）Premix, adds
Continue stirring 1 hour afterwards；
（3）Water-based emulsion is added in emulsion tank, is stirred under 200 revs/min；
（4）PH value is adjusted with remaining 1/2 amount part pH adjusting agent, is controlled in pH value 5.0-5.2, with going in right amount after pH value is qualified
Ionized water is adjusted.
3. energy-saving low-temperature cathode electrodip painting described in claim 1 in terms of the application for body of a motor car and its parts should
With.
4. energy-saving low-temperature cathode electrodip painting described in claim 1 takes into account film while carbimide deblocking temperature is reduced
Application in terms of surface smoothness and paint stability.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892860A (en) * | 2017-11-25 | 2018-04-10 | 蚌埠市福沃特车轮制造科技有限公司 | Energy-saving cathode electrophoretic paint for automotive hub |
| CN107903814A (en) * | 2017-11-29 | 2018-04-13 | 蚌埠市福沃特车轮制造科技有限公司 | High-wearing feature automotive hub spraying electrophoretic paint and preparation method thereof |
| CN107936763A (en) * | 2017-11-25 | 2018-04-20 | 蚌埠市福沃特车轮制造科技有限公司 | Preparation method for the electrophoretic paint of automotive hub application |
| CN108047875A (en) * | 2017-11-25 | 2018-05-18 | 蚌埠市福沃特车轮制造科技有限公司 | Synthetic resin prepared for automotive hub electrophoretic paint and preparation method thereof |
| CN108047876A (en) * | 2017-11-25 | 2018-05-18 | 蚌埠市福沃特车轮制造科技有限公司 | Electrophoretic paint anti-wear agent for improving automobile spoke wear-resisting property and preparation method thereof |
| CN108057595A (en) * | 2017-11-29 | 2018-05-22 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of high-wearing feature automotive hub coating process |
| CN112480786A (en) * | 2020-12-15 | 2021-03-12 | 天津科瑞达涂料化工有限公司 | Energy-saving low-temperature cathode electrophoretic paint and preparation method and application thereof |
| CN112521794A (en) * | 2020-12-15 | 2021-03-19 | 天津科瑞达涂料化工有限公司 | Long-acting aging-resistant cathode electrophoretic paint and application thereof |
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| CN107892860A (en) * | 2017-11-25 | 2018-04-10 | 蚌埠市福沃特车轮制造科技有限公司 | Energy-saving cathode electrophoretic paint for automotive hub |
| CN107936763A (en) * | 2017-11-25 | 2018-04-20 | 蚌埠市福沃特车轮制造科技有限公司 | Preparation method for the electrophoretic paint of automotive hub application |
| CN108047875A (en) * | 2017-11-25 | 2018-05-18 | 蚌埠市福沃特车轮制造科技有限公司 | Synthetic resin prepared for automotive hub electrophoretic paint and preparation method thereof |
| CN108047876A (en) * | 2017-11-25 | 2018-05-18 | 蚌埠市福沃特车轮制造科技有限公司 | Electrophoretic paint anti-wear agent for improving automobile spoke wear-resisting property and preparation method thereof |
| CN107903814A (en) * | 2017-11-29 | 2018-04-13 | 蚌埠市福沃特车轮制造科技有限公司 | High-wearing feature automotive hub spraying electrophoretic paint and preparation method thereof |
| CN108057595A (en) * | 2017-11-29 | 2018-05-22 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of high-wearing feature automotive hub coating process |
| CN112480786A (en) * | 2020-12-15 | 2021-03-12 | 天津科瑞达涂料化工有限公司 | Energy-saving low-temperature cathode electrophoretic paint and preparation method and application thereof |
| CN112521794A (en) * | 2020-12-15 | 2021-03-19 | 天津科瑞达涂料化工有限公司 | Long-acting aging-resistant cathode electrophoretic paint and application thereof |
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