CN108676450A - A kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity - Google Patents
A kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity Download PDFInfo
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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
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- 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
- C09D5/4407—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 by polymerisation reactions involving only carbon-to-carbon unsaturated bonds
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- C09D5/4407—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 by polymerisation reactions involving only carbon-to-carbon unsaturated bonds
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- 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
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- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/448—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications characterised by the additives used
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Abstract
The present invention relates to a kind of preparation methods of the super-hydrophobic stable electrophoretic coating of high intensity, belong to environment-friendly materials preparing technical field.The present invention uses poly- polymethacrylic acid methyl ester and polystyrene to prepare synthetic polymer for raw material,This polymer can form super-hydrophobic layer film after coating drying on coating surface layer,The contact angle of this hydrophobic layer film microcosmic surface and water is at 150 ° or more,Nano graphene oxide is introduced into electrophoretic coating by the present invention,Nano-graphene itself has good mechanical strength,By potassium permanganate,After the concentrated sulfuric acid and hydrogen peroxide oxidation processing,Itself have a large amount of carboxyl,Phenolic hydroxyl group,Epoxy group,Sulfo group and other epoxy groups,These groups can form new covalent bond and other Chemical bondings between polymer keeps coating overall structure finer and close,Also every layer of strand is made to cross each other into reticular structure,Also coating inner molecular structure is finer and close,Further increase the mechanical strength and stability of coating,It has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of the super-hydrophobic stable electrophoretic coating of high intensity, belong to environment-friendly materials technology of preparing
Field.
Background technology
Electrophoretic painting is one kind in Treatment of Metal Surface.It is widely used：Most start to be applied to automobile industry, but with each
The requirement of Treatment of Metal Surface is different in each industry of row, and electrophoretic painting also plays more and more important angle, jewelry, heat dissipation
Device, glasses, lighter, automobile, motorcycle, chopsticks, machinery etc..The feature of environmental protection of electrophoretic coating is recognized extensively.Unleaded, insulation
（It is non-conductive）, reduce the discharge capacity etc. of waste water.
Since the 1970s, cathode electrophoresis dope has been obtained increasingly in all conglomeraties due to the superiority of itself
More applications.Due to epoxy resin have excellent mechanical performance, electric property, chemical resistance, adhesive property and easily
Machine-shaping, it is of low cost the advantages that, resin used in traditional electrophoretic coating often selects epoxy resin, but due to epoxy resin
Have the shortcomings that poor toughness, surface energy are high, high temperature is degradable and hydrophobicity is insufficient so that epoxy resin is only suitable for being used for priming paint.
With the continuous development and progress of electrophoretic coating technology, more stringent requirements are proposed for performance of the people to coating.
The development of electrophoretic coating has more than 100 years history, and the exploitation of early stage is concentrated mainly on anode electrophoresis dope,
But in practical applications it is found that anodic electrophoretic coating technique exist dissolving anode, i.e., by painting object the shortcomings that.Ability cathode electrophoresis
Coating is a kind of novel anticorrosion coating for growing up and obtaining industrial applications the 1970s, since ability cathode electrophoresis applies
Expect with excellent anticorrosive property, high throwing power, application high degree of automation, environmental pollution is small, it is steady not dissolve coated article, tank liquor
The advantages that determining makes it obtain extensive use as priming paint in auto industry.With the development of technology, cathode electrophoresis dope has been
All conglomeraties such as household electrical appliance, toy, instrument, military project, building materials are overflow and arrive, application is also no longer limited to the anticorrosion of material,
But have the incrustation effect of material concurrently.
With the continuous development and progress of electrophoretic coating technology, more stringent requirements are proposed for performance of the people to coating.But
It is poor current electrophoretic coating mechanical strength, unstable chemcial property and not water-fast.Therefore, it is high and water-fast to invent a kind of mechanical strength
Property good electrophoretic coating there is positive effect to environment-friendly materials preparing technical field.
Invention content
The technical problems to be solved by the invention：For current electrophoretic coating mechanical strength poor, unstable chemcial property and
Not water-fast defect provides a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, by 30~32 parts of sulfuric acid solutions, 2~4 parts of graphite powders, 0.5~1.0 part of nitrous acid sodium powder are put into
It in beaker, is mixed under the conditions of ice-water bath, 5~7 parts of potassium permanganate powders is added and are stirred, temperature is increased after stirring
Degree, isothermal reaction obtain dark brown solution；
（2）Above-mentioned dark brown solution is heated up, and the deionized water with quality such as dark brown solutions is added, isothermal reaction 15~
20min obtains mixed liquor to be oxidized, and the dioxygen that mixed liquor quality 15~20% to be oxidized is added into mixed liquor to be oxidized is water-soluble
Liquid, isothermal reaction are filtered while hot after reaction, obtain filter cake, are washed 3~5 times, are dried with hydrochloric acid and deionized water successively
It is spare to oxidation product；
（3）By bisphenol-A solid epoxy and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, it is heated to 100
DEG C, it is cooled to 75~80 DEG C after stirring and obtains lysate, the diethanol amine of lysate quality 10~12% is added dropwise into lysate,
Temperature is increased to 95~100 DEG C, 2~3h is stirred and obtains mixed serum, mixed serum is cooled to 80~82 DEG C, and be added
The polyamide of mixed serum quality 60~70% is warming up to 100~105 DEG C of 2~3h of reaction and obtains prefabricated slurries；
（4）It counts in parts by weight, by 1~3 part of polymethyl methacrylate, 1~3 part of polystyrene and 10~12 parts of tetrahydrofurans
Input beaker in mix, stir to get polymer solution, count in parts by weight, weigh 10~12 parts of polymer solutions, 2~4 parts
30~40min is mixed in above-mentioned prefabricated slurries and 3~5 parts of hexamethylenes, obtains dispersion liquid；
（5）Count in parts by weight, weigh 20~25 parts of above-mentioned dispersion liquids, 1~3 part of glacial acetic acid, 3~5 parts of spare oxidation products,
The mixing of 4~6 parts of vinyltriethoxysilane increases temperature and obtains resin liquid to 2~3h is stirred, by resin liquid and go from
Sub- water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoretic coating of high intensity is made.
Step（1）Described in sulfuric acid solution mass fraction be 80~90%, mixing time be 10~15min, water-bath
Temperature is warming up to 33~36 DEG C, and the isothermal reaction time is 30~40min.
Step（2）Described in warming temperature to 88~92 DEG C, hydrogen peroxide mass fraction is 3~5%, the isothermal reaction time
For 15~20min, hydrochloric acid mass fraction is 3~6%.
Step（3）Described in speed of agitator be 300~400r/min, mixing time be 80~90min.
Step（4）Described in speed of agitator be 300~400r/min, mixing time be 2~3h.
Step（5）Described in raising temperature to 100~110 DEG C.
The method have the benefit that：
（1）The present invention pre-processes graphite powder with the concentrated sulfuric acid and potassium permanganate, and hydrogen peroxide is then added and is aoxidized, then will
Bisphenol-A solid epoxy and ethylene glycol monobutyl ether and diethanol amine hybrid reaction, finally by resin grout liquid, oxidation nanometer graphite
Hybrid reaction is of the invention up to the super-hydrophobic stable electrophoretic coating of high intensity at high temperature for alkene, silane coupling agent and other auxiliary agents
Poly- polymethacrylic acid methyl ester and polystyrene is used to prepare synthetic polymer for raw material, this polymer can apply after coating drying
Expect that surface layer forms super-hydrophobic layer film, the contact angle of this hydrophobic layer film microcosmic surface and water is and microcosmic at 150 ° or more
Surface texture is uneven fluctuating, prevents drop from filling up concave surface, and air, silane have been retained between drop and solid concave surface
The addition of coupling agent, which makes to be introduced into Si-O keys and Si-C keys in coating, makes the polymer molecular chain in coating form branch, makes each molecule
There are molecular chain action power and covalent bond effect between interlayer mutually, to which structure is finer and close, improves the hydrophobic effect of coating；
（2）Nano graphene oxide is introduced into electrophoretic coating by the present invention, and nano-graphene itself has good mechanical strength,
After the processing of potassium permanganate, the concentrated sulfuric acid and hydrogen peroxide oxidation, itself have a large amount of carboxyl, phenolic hydroxyl group, epoxy group, sulfo group
With other epoxy groups, these groups can form new covalent bond and other Chemical bondings between polymer keeps coating whole
Body structure is finer and close, and to reinforce the mechanical strength and stability of coating, while the addition of silane coupling agent can also make to gather
Adduct molecule chain forms branch, is linked to each other each molecular layer of polymer, every layer of strand is also made to cross each other into reticular structure,
Coating inner molecular structure is finer and close, the mechanical strength and stability of coating are further increased, before there is wide application
Scape.
Specific implementation mode
It counts in parts by weight, the sulfuric acid solution for being 80~90% by 30~32 parts of mass fractions, 2~4 parts of graphite powders, 0.5~
1.0 parts of nitrous acid sodium powders are put into beaker, are mixed under the conditions of ice-water bath, and 5~7 parts of potassium permanganate powders, stirring is added
10~15min is mixed, temperature is increased after stirring to 33~36 DEG C, 30~40min of isothermal reaction obtains dark brown solution；
Above-mentioned dark brown solution is warming up to 88~92 DEG C, and the deionized water with quality such as dark brown solutions, isothermal reaction 15 is added
~20min obtains mixed liquor to be oxidized, and the mass fraction of mixed liquor quality 15~20% to be oxidized is added into mixed liquor to be oxidized
For 3~5% hydrogen peroxide solution, 15~20min of isothermal reaction is filtered while hot after reaction, is obtained filter cake, is used quality successively
The hydrochloric acid and deionized water that score is 3~6% wash 3~5 times, and drying obtains oxidation product, spare；By bisphenol-A solids epoxy tree
Fat and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, 100 DEG C are heated to, is stirred with the rotating speed of 300~400r/min
It mixes and is cooled to 75~80 DEG C after 80~90min and obtains lysate, the diethanol of lysate quality 10~12% is added dropwise into lysate
Amine, increases temperature to 95~100 DEG C, is stirred 2~3h and obtains mixed serum, and mixed serum is cooled to 80~82 DEG C, and
The polyamide of mixed serum quality 60~70% is added, is warming up to 100~105 DEG C of 2~3h of reaction and obtains prefabricated slurries；It presses
1~3 part of polymethyl methacrylate, 1~3 part of polystyrene and 10~12 parts of tetrahydrofurans are put into beaker by parts by weight meter
Middle mixing stirs 2~3h with the rotating speed of 300~400r/min and obtains polymer solution, counts in parts by weight, weigh 10~12 parts
30~40min is mixed in polymer solution, 2~4 parts of above-mentioned prefabricated slurries and 3~5 parts of hexamethylenes, obtains dispersion liquid；By weight
Number meter is measured, 20~25 parts of above-mentioned dispersion liquids, 1~3 part of glacial acetic acid, 3~5 parts of spare oxidation products, 4~6 parts of ethylene are weighed
Ethyl triethoxy silicane alkane mixes, and increases temperature and is stirred 2~3h to 100~110 DEG C and obtains resin liquid, by resin liquid and go from
Sub- water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoretic coating of high intensity is made.
It counts in parts by weight, the sulfuric acid solution for being 80% by 30 parts of mass fractions, 2 parts of graphite powders, 0.5 part of nitrous acid sodium powder
It is put into beaker, is mixed under the conditions of ice-water bath, 5 parts of potassium permanganate powders are added, are stirred 10min, stirring terminates
Temperature is increased afterwards to 33 DEG C, and isothermal reaction 30min obtains dark brown solution；Above-mentioned dark brown solution is warming up to 88 DEG C, and is added
Enter the deionized water with quality such as dark brown solutions, isothermal reaction 15min obtains mixed liquor to be oxidized, into mixed liquor to be oxidized
The hydrogen peroxide solution that the mass fraction of mixed liquor quality 15% to be oxidized is 3% is added, isothermal reaction 15min takes advantage of after reaction
Heat filtering obtains filter cake, and the hydrochloric acid and deionized water for being successively 3% with mass fraction wash 3 times, and drying obtains oxidation product, standby
With；By bisphenol-A solid epoxy and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, 100 DEG C are heated to, with
It is cooled to 75 DEG C after the rotating speed stirring 80min of 300r/min and obtains lysate, the two of lysate quality 10% is added dropwise into lysate
Ethanol amine increases temperature to 95 DEG C, is stirred 2h and obtains mixed serum, mixed serum is cooled to 80 DEG C, and mixing is added
The polyamide of grind slurries quality 60% is warming up to 100 DEG C of reaction 2h and obtains prefabricated slurries；It counts in parts by weight, by 1 part of poly- first
It mixes in base methyl acrylate, 1 part of polystyrene and 10 parts of tetrahydrofuran input beakers, is obtained with the rotating speed stirring 2h of 300r/min
It to polymer solution, counts in parts by weight, weighs 10 parts of polymer solutions, 2 parts of above-mentioned prefabricated slurries and 3 parts of hexamethylene mixing and stir
30min is mixed, dispersion liquid is obtained；It counts in parts by weight, weighs 20 parts of above-mentioned dispersion liquids, 1 part of glacial acetic acid, 3 parts of spare oxidation productions
Object, the mixing of 4 parts of vinyltriethoxysilane, increase temperature and are stirred 2h to 100 DEG C and obtain resin liquid, by resin liquid with go
Ionized water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoretic coating of high intensity is made.
It counts in parts by weight, the sulfuric acid solution for being 85% by 31 parts of mass fractions, 3 parts of graphite powders, 0.7 part of nitrous acid sodium powder
It is put into beaker, is mixed under the conditions of ice-water bath, 6 parts of potassium permanganate powders are added, are stirred 12min, stirring terminates
Temperature is increased afterwards to 35 DEG C, and isothermal reaction 35min obtains dark brown solution；Above-mentioned dark brown solution is warming up to 90 DEG C, and is added
Enter the deionized water with quality such as dark brown solutions, isothermal reaction 17min obtains mixed liquor to be oxidized, into mixed liquor to be oxidized
The hydrogen peroxide solution that the mass fraction of mixed liquor quality 17% to be oxidized is 4% is added, isothermal reaction 17min takes advantage of after reaction
Heat filtering obtains filter cake, and the hydrochloric acid and deionized water for being successively 4% with mass fraction wash 4 times, and drying obtains oxidation product, standby
With；By bisphenol-A solid epoxy and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, 100 DEG C are heated to, with
It is cooled to 77 DEG C after the rotating speed stirring 85min of 350r/min and obtains lysate, the two of lysate quality 11% is added dropwise into lysate
Ethanol amine increases temperature to 97 DEG C, is stirred 2.5h and obtains mixed serum, mixed serum is cooled to 81 DEG C, and be added mixed
The polyamide for closing grind slurries quality 65% is warming up to 102 DEG C of reaction 2.5h and obtains prefabricated slurries；It counts in parts by weight, by 2 parts
It mixes in polymethyl methacrylate, 2 parts of polystyrene and 11 parts of tetrahydrofuran input beakers, is stirred with the rotating speed of 350r/min
2.5h obtains polymer solution, counts in parts by weight, weighs 11 parts of polymer solutions, 3 parts of above-mentioned prefabricated slurries and 4 parts of hexamethylenes
35min is mixed, obtains dispersion liquid；Count in parts by weight, weigh 22 parts of above-mentioned dispersion liquids, 2 parts of glacial acetic acids, 4 parts it is spare
Oxidation product, 5 parts of vinyltriethoxysilane mixing, raising temperature are stirred 2.5h to 105 DEG C and obtain resin liquid, will set
Fat liquid and deionized water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoresis painting of high intensity is made
Material.
It counts in parts by weight, the sulfuric acid solution for being 90% by 32 parts of mass fractions, 4 parts of graphite powders, 1.0 parts of nitrous acid sodium powders
It is put into beaker, is mixed under the conditions of ice-water bath, 7 parts of potassium permanganate powders are added, are stirred 15min, stirring terminates
Temperature is increased afterwards to 36 DEG C, and isothermal reaction 40min obtains dark brown solution；Above-mentioned dark brown solution is warming up to 92 DEG C, and is added
Enter the deionized water with quality such as dark brown solutions, isothermal reaction 20min obtains mixed liquor to be oxidized, into mixed liquor to be oxidized
The hydrogen peroxide solution that the mass fraction of mixed liquor quality 20% to be oxidized is 5% is added, isothermal reaction 20min takes advantage of after reaction
Heat filtering obtains filter cake, and the hydrochloric acid and deionized water for being successively 6% with mass fraction wash 5 times, and drying obtains oxidation product, standby
With；By bisphenol-A solid epoxy and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, 100 DEG C are heated to, with
It is cooled to 80 DEG C after the rotating speed stirring 90min of 400r/min and obtains lysate, the two of lysate quality 12% is added dropwise into lysate
Ethanol amine increases temperature to 100 DEG C, is stirred 3h and obtains mixed serum, mixed serum is cooled to 82 DEG C, and mixing is added
The polyamide of grind slurries quality 70% is warming up to 105 DEG C of reaction 3h and obtains prefabricated slurries；It counts in parts by weight, by 3 parts of poly- first
It mixes in base methyl acrylate, 3 parts of polystyrene and 12 parts of tetrahydrofuran input beakers, is obtained with the rotating speed stirring 3h of 400r/min
It to polymer solution, counts in parts by weight, weighs 12 parts of polymer solutions, 4 parts of above-mentioned prefabricated slurries and 5 parts of hexamethylene mixing and stir
40min is mixed, dispersion liquid is obtained；It counts in parts by weight, weighs 25 parts of above-mentioned dispersion liquids, 3 parts of glacial acetic acids, 5 parts of spare oxidation productions
Object, the mixing of 6 parts of vinyltriethoxysilane, increase temperature and are stirred 3h to 110 DEG C and obtain resin liquid, by resin liquid with go
Ionized water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoretic coating of high intensity is made.
Comparative example as a comparison case makes the present invention with the super-hydrophobic stable electrophoretic coating of high intensity that Jiangsu company produces
The super-hydrophobic stable electrophoretic coating of high intensity in the super-hydrophobic stable electrophoretic coating of high intensity and comparative example that obtain carries out performance detection,
Testing result is as shown in table 1：
Test method：
Adhesive force level estimate is detected using gridding method by the standard of JISH-8602；
Hardness test is detected using pencil hardness by the standard of JISH-8602；
Solvent resistance is tested：Coating in example 1~3 and comparative example is coated in metal surface, its drying for standby is waited for, with infiltration
The cloth of formaldehyde（500g pressure）Above-mentioned surface is wiped back and forth, wiping how many times rear surface is measured and exception occurs；
Acid resistance test method：Metal surface of the appeal coating after dry is respectively placed in mass fraction 1%HCl and impregnates 1h,
Measure adhesive force；
Alkali resistance test method：Metal surface of the appeal coating after dry is respectively placed in mass fraction 1%NaOH solution and is soaked
1h is steeped, adhesive force is measured；
Water absorption rate test carries out performance detection using water absorption rate experimental method；
Water resistance test：Metal surface of the appeal coating after dry is positioned in water, how long rear surface appearance is different for observation
Often.
1 electrophoretic coating performance measurement result of table
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Adhesive force（Grade） | 1 | 0 | 0 | 3 |
| Pencil hardness（H） | 4 | 4 | 4 | 2 |
| Solvent resistance | 258 times without exception | 258 times without exception | 260 times without exception | 100 times without exception |
| Acid resistance（Grade） | 1 | 0 | 0 | 4 |
| Alkali resistance（Grade） | 1 | 0 | 0 | 5 |
| Water absorption rate（%） | 4.4 | 4.3 | 4.2 | 11.2 |
| Water resistance（h） | 21 | 22 | 22 | 15 |
Good, the adhesive force according to the super-hydrophobic stable electrophoretic coating mechanical property of the high intensity produced by the present invention of data among the above
Height, solvent resistance is good, and acid resistance, alkali resistance are good, and chemical property is stablized, and water absorption rate is low, and in water after 22h, surface is without exception, resistance to
It is aqueous good, it has broad application prospects.
Claims (6)
1. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, by 30~32 parts of sulfuric acid solutions, 2~4 parts of graphite powders, 0.5~1.0 part of nitrous acid sodium powder are put into
It in beaker, is mixed under the conditions of ice-water bath, 5~7 parts of potassium permanganate powders is added and are stirred, temperature is increased after stirring
Degree, isothermal reaction obtain dark brown solution；
（2）Above-mentioned dark brown solution is heated up, and the deionized water with quality such as dark brown solutions is added, isothermal reaction 15~
20min obtains mixed liquor to be oxidized, and the dioxygen that mixed liquor quality 15~20% to be oxidized is added into mixed liquor to be oxidized is water-soluble
Liquid, isothermal reaction are filtered while hot after reaction, obtain filter cake, are washed 3~5 times, are dried with hydrochloric acid and deionized water successively
It is spare to oxidation product；
（3）By bisphenol-A solid epoxy and ethylene glycol monobutyl ether in mass ratio 3:In 1 input beaker, it is heated to 100
DEG C, it is cooled to 75~80 DEG C after stirring and obtains lysate, the diethanol amine of lysate quality 10~12% is added dropwise into lysate,
Temperature is increased to 95~100 DEG C, 2~3h is stirred and obtains mixed serum, mixed serum is cooled to 80~82 DEG C, and be added
The polyamide of mixed serum quality 60~70% is warming up to 100~105 DEG C of 2~3h of reaction and obtains prefabricated slurries；
（4）It counts in parts by weight, by 1~3 part of polymethyl methacrylate, 1~3 part of polystyrene and 10~12 parts of tetrahydrofurans
Input beaker in mix, stir to get polymer solution, count in parts by weight, weigh 10~12 parts of polymer solutions, 2~4 parts
30~40min is mixed in above-mentioned prefabricated slurries and 3~5 parts of hexamethylenes, obtains dispersion liquid；
（5）Count in parts by weight, weigh 20~25 parts of above-mentioned dispersion liquids, 1~3 part of glacial acetic acid, 3~5 parts of spare oxidation products,
The mixing of 4~6 parts of vinyltriethoxysilane increases temperature and obtains resin liquid to 2~3h is stirred, by resin liquid and go from
Sub- water in mass ratio 4:It is emulsified in 1 mixing input high-shear emulsion machine and the super-hydrophobic stable electrophoretic coating of high intensity is made.
2. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity according to claim 1, it is characterised in that：Step
Suddenly（1）Described in the mass fraction of sulfuric acid solution be 80~90%, mixing time is 10~15min, and bath temperature is warming up to
33~36 DEG C, the isothermal reaction time is 30~40min.
3. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity according to claim 1, it is characterised in that：Step
Suddenly（2）Described in warming temperature to 88~92 DEG C, hydrogen peroxide mass fraction is 3~5%, the isothermal reaction time is 15~
20min, hydrochloric acid mass fraction are 3~6%.
4. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity according to claim 1, it is characterised in that：Step
Suddenly（3）Described in speed of agitator be 300~400r/min, mixing time be 80~90min.
5. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity according to claim 1, it is characterised in that：Step
Suddenly（4）Described in speed of agitator be 300~400r/min, mixing time be 2~3h.
6. a kind of preparation method of the super-hydrophobic stable electrophoretic coating of high intensity according to claim 1, it is characterised in that：Step
Suddenly（5）Described in raising temperature to 100~110 DEG C.
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| CN108753112A (en) * | 2018-06-29 | 2018-11-06 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of conductive coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108753112A (en) * | 2018-06-29 | 2018-11-06 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of conductive coating |
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Application publication date: 20181019 |