CN109608960A - A kind of preparation method of automobile finish - Google Patents
A kind of preparation method of automobile finish Download PDFInfo
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- CN109608960A CN109608960A CN201811266444.4A CN201811266444A CN109608960A CN 109608960 A CN109608960 A CN 109608960A CN 201811266444 A CN201811266444 A CN 201811266444A CN 109608960 A CN109608960 A CN 109608960A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 3
- 230000008023 solidification Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 17
- 239000006185 dispersion Substances 0.000 claims description 17
- 238000000498 ball milling Methods 0.000 claims description 16
- 239000000839 emulsion Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000002518 antifoaming agent Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 6
- 239000006210 lotion Substances 0.000 claims description 5
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 239000013638 trimer Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 13
- 229920002635 polyurethane Polymers 0.000 abstract description 7
- 239000004814 polyurethane Substances 0.000 abstract description 7
- 239000004925 Acrylic resin Substances 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- -1 amino, fluorine silicon Chemical compound 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 239000012948 isocyanate Substances 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 150000002513 isocyanates Chemical class 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 9
- 239000002585 base Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000011527 polyurethane coating Substances 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005002 finish coating Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of preparation methods of automobile finish, belong to technical field of paint preparation.The present invention is by aqueous polyurethane and fluorine silicon resin blending and modifying, prepare a kind of preferable automobile finish of hydrophobicity, the automobile finish of preparation not only has the high-intensitive mechanical performance of mono-component polyurethane, and there is high glaze, solidification temperature is low, excellent resistance to acid and alkali, salt fog resistance and weatherability；Polyurethane resin has good hydrophobicity than polyacrylic resin, and so as to offset the sensibility that a part generates hydrone due to the introducing of amino, fluorine silicon resin has excellent temperature tolerance, resistance to bond, chemical-resistant, soil resistance and dicoration；Curing agent selects the compound of isocyanates in the present invention, all very good with the compatibility of various resins, solvent, relatively relatively low to sensibility moist in air, in this way can be fast to avoid film defect, rate of drying because caused by humidity is big.
Description
Technical field
The present invention relates to a kind of preparation methods of automobile finish, belong to technical field of paint preparation.
Background technique
Automobile finish is the final coating in automobile multiple coating system, it assigns automobile colors, decorative appearance and guarantor
Protect the function of entire coating.The color of automobile further includes various flash of light colors in addition to true qualities to diversification individualized development, such as gold
Belong to flash of light color and pearly-lustre color.While finishing coat is coloured to automobile, it is often more important that Yao Tigao decorative appearance has automotive coatings
There are the performances such as high glaze, high richness, high clarity, and topcoat should also have concurrently and make to priming coat and the protection of itself
With.
Automobile finish is broadly divided into two kinds: solid color enamel and metal flash paint.Nowadays, the coating item to adapt to environment-friendly type coating
Part, no matter metallochrome, or real color finishing coat, coating process all use two paint coating methods (i.e. background color+Lacquer finish).As reduction bottom
The VOC technology of chromatograph, selects the effect of water paint best, and the organic solvent content of water-based metal background color and true qualities base coat is
10%~l5% reduces many compared with organic solvent type metal base coat organic solvent content 80%, can make the discharge amount of VOC
It substantially reduces, from the 1990s, foreign countries begin to using aqueous automobile paint.
At present, water-borne base coat mainly has aqueous acrylic-amino resin system and waterborne polyurethane resin system.It is aqueous
Polyurethane coating can be not only used for priming paint, and can be used as coating varnish, because polyurethane coating has high glaze, flowing
Property is good, hardness is high, or even at quite low temperatures there is also elasticity, good rub resistance and scratch resistance.The excellent property of polyurethane
Can be undivided with its structure, its good solvent resistant, acid and alkali-resistance and it is resistant to saline solution chemically, be the molecule knot due to it
Structure has the physical network arrangement of ammonia ester bond composition.
In various automobile finish coating, polyurethane coating has excellent wearability, corrosion resistance, weather-proof because of its film
Property, the advantages that hardness is big, elasticity is high, adhesive force is strong, be widely applied in car paint field and there is good development
Prospect.With the continuous development of auto industry, the requirement of automotive coatings and coating is higher and higher, while the regulations of environmental protection being answered to want
It asks, Water-borne modification is the inexorable trend of car paint development, the priming paint of Car Body Painting, floating coating, colored paint, finishing varnish and is repaired
Aqueous polyurethane can be used in touch-up paint, and waterborne polyurethane automotive coating used at present is mainly two-component-type.
Under the pressure of the pressure of environment, the inexorable trend that eco-friendly car finishing coat is development is developed, only in Water-borne modification, high solid
Development degree and speed on the directions such as change, powdered is different.As the improvement of people's living standards, not only being wanted to automobile
Seek superior service performance, more the beauty of automobile put forward higher requirements, this allow for decoration automobile topcoat towards
The direction of fine definition, high clarity, high richness etc. is developed.
Summary of the invention
The technical problems to be solved by the invention: aiming at the problem that current material poor water resistance, a kind of automobile face is provided
The preparation method of paint.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) in mass ratio 1: 2 fluorine silicon resin and waterborne polyurethane resin are mixed, ball milling, obtains mixture, in mass ratio 1: 1 adds
Enter silicone acrylic emulsion, continues 1~2h of ball milling, obtain component A；
(2) nano-titanium dioxide, graphene and deionized water are mixed, 10~20min of ultrasonic disperse obtains dispersion liquid, is added
BYK-110 continues 15~20min of ultrasonic disperse, obtains component B；
(3) according to parts by weight, weigh respectively 10~20 parts of component A, 1~5 part of component B, 5~10 parts of silicone acrylic emulsions, 0.2~
0.5 part of defoaming agent, 0.5~0.7 part of curing agent, 0.1~0.3 part of levelling agent, 30~40 parts of deionized waters, by component A and silicon third
Lotion is uniformly mixed, and obtains blend, and component B, defoaming agent, curing agent, levelling agent and deionized water mixing, high speed dispersion is added
Afterwards, 10~20min is ground to get automobile finish.
Ball milling described in step (1) is that low whipping speed is 100~200r/min, ratio of grinding media to material 3: 1,1~2h of ball milling.
The mass ratio of nano-titanium dioxide, graphene and deionized water described in step (2) is 1: 1: 10.
The mass ratio of BYK-110 described in step (2) and dispersion liquid is 1: 10.
Defoaming agent described in step (3) is organic silicon defoamer BYK-141.
Curing agent described in step (3) is that hexamethylene diisocyanate biruet, HDI trimer and isophorone two are different
Any one in cyanate tripolymer.
Levelling agent described in step (3) be BYK-353,355, it is 358, EFKA-3775, any one in 3778, BYK-306
Kind.
High speed dispersion described in step (3) is 30~50min of high speed dispersion in the case where revolving speed is 4000~5000r/min.
The present invention is compared with other methods, and advantageous effects are:
(1) aqueous polyurethane and fluorine silicon resin blending and modifying are prepared a kind of preferable automobile finish of hydrophobicity by the present invention, are made
Standby automobile finish not only has the high-intensitive mechanical performance of mono-component polyurethane, but also has high glaze, and solidification temperature is low,
Excellent resistance to acid and alkali, salt fog resistance and weatherability；Polyurethane resin has good hydrophobicity than polyacrylic resin, from
And can offset a part due to the introducing of amino to hydrone generate sensibility, fluorine silicon resin have excellent temperature tolerance,
Resistance to bond, chemical-resistant, soil resistance and dicoration；
(2) present invention is modified using silicone acrylic emulsion, and silicone acrylic emulsion is by organic silicon monomer and propylene containing unsaturated bond
Suitable auxiliary agent is added in acrylic monomer, coats the lotion that polymerization technique is polymerized by nucleocapsid, combines organosilicon fire-resistant
Property, weatherability, chemical-resistant, hydrophobic, surface can the high colour retention of low not v ulnerability and acrylic resin, flexibility,
Adhesion, so that the automobile finish of preparation has preferable weatherability；
(3) present invention in curing agent select isocyanates compound, it is all very good with the compatibility of various resins, solvent, it is right
Moist sensibility is relatively relatively low in air, in this way can be fast to avoid film defect, rate of drying because caused by humidity is big.
Specific embodiment
In mass ratio 1: 2 mixes fluorine silicon resin and waterborne polyurethane resin, and low whipping speed is 100~200r/min,
Ratio of grinding media to material is 3: 1,1~2h of ball milling, obtains mixture, and in mass ratio 1: 1 is added silicone acrylic emulsion, continues 1~2h of ball milling, obtains component A；
In mass ratio 1: 1: 10 mixes nano-titanium dioxide, graphene and deionized water, and 10~20min of ultrasonic disperse obtains dispersion liquid,
In mass ratio 1: 10 is added BYK-110, continues 15~20min of ultrasonic disperse, obtains component B；According to parts by weight, 10 are weighed respectively
~20 parts of component A, 1~5 part of component B, 5~10 parts of silicone acrylic emulsions, 0.2~0.5 part of defoaming agent, 0.5~0.7 part of curing agent, 0.1
~0.3 part of levelling agent, 30~40 parts of deionized waters, component A and silicone acrylic emulsion are uniformly mixed, and obtain blend, be added component B,
Defoaming agent, curing agent, levelling agent and deionized water mixing, 30~50min of high speed dispersion in the case where revolving speed is 4000~5000r/min
Afterwards, 10~20min is ground to get automobile finish.
Example 1
In mass ratio 1: 2 mixes fluorine silicon resin and waterborne polyurethane resin, low whipping speed 100r/min, ratio of grinding media to material 3:
1, ball milling 1h obtain mixture, and in mass ratio 1: 1 is added silicone acrylic emulsion, continue ball milling 1h, obtain component A；In mass ratio 1: 1: 10 will
Nano-titanium dioxide, graphene and deionized water mixing, ultrasonic disperse 10min, obtain dispersion liquid, and in mass ratio 1: 10 is added BYK-
110, continue ultrasonic disperse 15min, obtains component B；According to parts by weight, 10 parts of component A, 1 part of component B, 5 parts of silicon third are weighed respectively
Lotion, 0.2 part of defoaming agent, 0.5 part of curing agent, 0.1 part of levelling agent, 30 parts of deionized waters mix component A and silicone acrylic emulsion equal
It is even, blend is obtained, component B, defoaming agent, curing agent, levelling agent and deionized water mixing is added, in the case where revolving speed is 4000r/min
After high speed dispersion 30min, 10min is ground to get automobile finish.
Example 2
In mass ratio 1: 2 mixes fluorine silicon resin and waterborne polyurethane resin, low whipping speed 150r/min, ratio of grinding media to material 3:
1, ball milling 1h obtain mixture, and in mass ratio 1: 1 is added silicone acrylic emulsion, continue ball milling 1h, obtain component A；In mass ratio 1: 1: 10 will
Nano-titanium dioxide, graphene and deionized water mixing, ultrasonic disperse 15min, obtain dispersion liquid, and in mass ratio 1: 10 is added BYK-
110, continue ultrasonic disperse 18min, obtains component B；According to parts by weight, 15 parts of component A, 3 parts of component B, 8 parts of silicon third are weighed respectively
Lotion, 0.3 part of defoaming agent, 0.6 part of curing agent, 0.2 part of levelling agent, 35 parts of deionized waters mix component A and silicone acrylic emulsion equal
It is even, blend is obtained, component B, defoaming agent, curing agent, levelling agent and deionized water mixing is added, in the case where revolving speed is 4500r/min
After high speed dispersion 40min, 15min is ground to get automobile finish.
Example 3
In mass ratio 1: 2 mixes fluorine silicon resin and waterborne polyurethane resin, low whipping speed 200r/min, ratio of grinding media to material 3:
1, ball milling 2h obtain mixture, and in mass ratio 1: 1 is added silicone acrylic emulsion, continue ball milling 2h, obtain component A；In mass ratio 1: 1: 10 will
Nano-titanium dioxide, graphene and deionized water mixing, ultrasonic disperse 20min, obtain dispersion liquid, and in mass ratio 1: 10 is added BYK-
110, continue ultrasonic disperse 20min, obtains component B；According to parts by weight, 20 parts of component A, 5 parts of component B, 10 parts of silicon are weighed respectively
Acrylic emulsion, 0.5 part of defoaming agent, 0.7 part of curing agent, 0.3 part of levelling agent, 40 parts of deionized waters mix component A and silicone acrylic emulsion
Uniformly, blend is obtained, component B, defoaming agent, curing agent, levelling agent and deionized water mixing is added, is 5000r/min in revolving speed
After lower high speed dispersion 50min, 20min is ground to get automobile finish.
Reference examples: the automobile finish of Dongguan company production.
The automobile finish that example and reference examples are prepared is detected, specific detection is as follows:
Water resistance: according to GB/T4893.1-2005 standard testing.
Impact resistance: according to GB/T1732-1993 standard testing.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Water resistance/10 day | It is unchanged | It is unchanged | It is unchanged | Blistering |
| Impact resistance/kgcm | 50 | 50 | 50 | 20 |
As shown in Table 1, automobile finish prepared by the present invention has good water resistance and impact resistance.
Claims (8)
1. a kind of preparation method of automobile finish, it is characterised in that specific preparation step are as follows:
(1) in mass ratio 1: 2 fluorine silicon resin and waterborne polyurethane resin are mixed, ball milling, obtains mixture, in mass ratio 1: 1 adds
Enter silicone acrylic emulsion, continues 1~2h of ball milling, obtain component A；
(2) nano-titanium dioxide, graphene and deionized water are mixed, 10~20min of ultrasonic disperse obtains dispersion liquid, is added
BYK-110 continues 15~20min of ultrasonic disperse, obtains component B；
(3) according to parts by weight, weigh respectively 10~20 parts of component A, 1~5 part of component B, 5~10 parts of silicone acrylic emulsions, 0.2~
0.5 part of defoaming agent, 0.5~0.7 part of curing agent, 0.1~0.3 part of levelling agent, 30~40 parts of deionized waters, by component A and silicon third
Lotion is uniformly mixed, and obtains blend, and component B, defoaming agent, curing agent, levelling agent and deionized water mixing, high speed dispersion is added
Afterwards, 10~20min is ground to get automobile finish.
2. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: ball milling described in step (1)
It is 100~200r/min, ratio of grinding media to material 3: 1,1~2h of ball milling for low whipping speed.
3. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: nanometer described in step (2)
The mass ratio of titanium dioxide, graphene and deionized water is 1: 1: 10.
4. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: BYK- described in step (2)
110 and dispersion liquid mass ratio be 1: 10.
5. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: defoaming described in step (3)
Agent is organic silicon defoamer BYK-141.
6. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: solidification described in step (3)
Agent is any one in hexamethylene diisocyanate biruet, HDI trimer and isophorone diisocyanate trimer.
7. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: levelling described in step (3)
Agent is BYK-353,355,358, EFKA-3775, any one in 3778, BYK-306.
8. a kind of preparation method of automobile finish according to claim 1, it is characterised in that: high speed described in step (3)
It is separated into 30~50min of high speed dispersion in the case where revolving speed is 4000~5000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266444.4A CN109608960B (en) | 2018-10-29 | 2018-10-29 | Preparation method of automobile finish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266444.4A CN109608960B (en) | 2018-10-29 | 2018-10-29 | Preparation method of automobile finish |
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| Publication Number | Publication Date |
|---|---|
| CN109608960A true CN109608960A (en) | 2019-04-12 |
| CN109608960B CN109608960B (en) | 2021-05-28 |
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|---|---|---|---|
| CN201811266444.4A Active CN109608960B (en) | 2018-10-29 | 2018-10-29 | Preparation method of automobile finish |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112300681A (en) * | 2020-10-26 | 2021-02-02 | 清远市蓝林新材料有限公司 | Polyurethane coating for mirror frame surface processing and preparation method thereof |
| CN113667365A (en) * | 2021-07-20 | 2021-11-19 | 安徽朗凯奇防水科技股份有限公司 | Acid rain resistant exterior wall paint and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589310A (en) * | 2012-08-13 | 2014-02-19 | 中国石油天然气集团公司 | Durable polyurethane finish capable of resisting marine-atmosphere environment, and preparation method thereof |
| CN104178013A (en) * | 2014-09-09 | 2014-12-03 | 江苏美亿晨新材料科技有限公司 | Environment-friendly water-based nano varnish and preparation method |
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| CN103589310A (en) * | 2012-08-13 | 2014-02-19 | 中国石油天然气集团公司 | Durable polyurethane finish capable of resisting marine-atmosphere environment, and preparation method thereof |
| US20170120292A1 (en) * | 2014-02-18 | 2017-05-04 | Hewlett-Packard Development Company, L.P. | Finishing Method for a Metal Surface |
| CN104178013A (en) * | 2014-09-09 | 2014-12-03 | 江苏美亿晨新材料科技有限公司 | Environment-friendly water-based nano varnish and preparation method |
| CN105505059A (en) * | 2015-12-29 | 2016-04-20 | 浙江名匠实业股份有限公司 | Water-borne fluoride-silicone-acrylic nano-sol super-weatherproof stain-resistant coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112300681A (en) * | 2020-10-26 | 2021-02-02 | 清远市蓝林新材料有限公司 | Polyurethane coating for mirror frame surface processing and preparation method thereof |
| CN113667365A (en) * | 2021-07-20 | 2021-11-19 | 安徽朗凯奇防水科技股份有限公司 | Acid rain resistant exterior wall paint and preparation method thereof |
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| CN109608960B (en) | 2021-05-28 |
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