CN111607323A - Easy-to-clean anti-graffiti nano coating for automobile paint surface and construction process - Google Patents
Easy-to-clean anti-graffiti nano coating for automobile paint surface and construction process Download PDFInfo
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- CN111607323A CN111607323A CN202010622140.8A CN202010622140A CN111607323A CN 111607323 A CN111607323 A CN 111607323A CN 202010622140 A CN202010622140 A CN 202010622140A CN 111607323 A CN111607323 A CN 111607323A
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- graffiti
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/16—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- 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
Abstract
The invention discloses an easy-to-clean anti-graffiti nano coating for an automobile paint surface and a construction process thereof, and aims to provide a nano coating which has super-strong anti-graffiti performance, can resist various pollutants, is easy to clean, does not stick ash, has high hardness of 8H, and has high wear resistance and strong scratch resistance; the paint comprises the following components in parts by weight: the nano coating comprises the following components in parts by weight: 30-40 parts of P22 resin, 0.5-3 parts of silicone oil, 0.2-0.3 part of catalyst, 0.3-1 part of adhesion promoter, 1-3 parts of anti-doodling auxiliary agent, 1.5-3 parts of wear-resisting agent, 39.25-46.06 parts of medium boiling point mixed solvent and 16.99-19.74 parts of high boiling point solvent; belongs to the technical field of coating.
Description
Technical Field
The invention relates to a nano coating, in particular to an easy-to-clean anti-graffiti nano coating for an automobile finish, and also relates to a construction process of the coating, belonging to the technical field of coatings.
Background
In order to increase the advertising of products, more and more people like to scribble the products on the surface of the automobile for product publicity, and the publicity has the advantages of saving paper and protecting the environment, and is popular among people because the publicity range is easily expanded.
However, the automobile finish paint is generally damaged greatly after being scribbled, and is difficult to erase, and is difficult to replace if needing to replace advertisements of other products.
Chinese patent CN 110591436A discloses a paint surface protective paint for invisible car clothes, which is easy to construct, high in stain resistance and easy to clean, and the technical scheme is that after a car is cleaned, a strippable primer is firstly sprayed on the car, and then a graffiti-proof easy-to-clean paint (solvent type polyurethane two-component finish paint or water-based acrylic acid dispersion finish paint) is sprayed on the car; if the protective layer is not needed, the strippable primer can be easily uncovered, and simultaneously the anti-doodling easy-cleaning paint (solvent type polyurethane two-component finish paint or water-based acrylic dispersion finish paint) on the strippable primer can be removed; by the mode, the original factory paint can be well protected. However, the method requires two processes, is relatively complex to operate, wastes paint and wastes raw materials.
Disclosure of Invention
In view of the above problems, a first object of the present invention is to provide a nano-coating having superior anti-graffiti properties, being resistant to various contaminants, being easy to clean and ash-free, having a high hardness of 8H, having high wear resistance and strong scratch resistance.
The second purpose of the invention is to provide a construction process which is simple in construction process, easy to operate and beneficial to large-scale commercial construction.
Therefore, the first technical scheme provided by the invention is as follows:
an easy-to-clean anti-graffiti nano coating for an automobile finish, which comprises the following components in parts by weight: 30-40 parts of P22 resin, 0.5-3 parts of silicone oil, 0.2-0.3 part of catalyst, 0.3-1 part of adhesion promoter, 1-3 parts of anti-doodling assistant, 1.5-3 parts of wear-resisting agent, 39.25-46.06 parts of medium boiling point mixed solvent and 16.99-19.74 parts of high boiling point solvent.
Further, the preparation method of the P22 resin for the easy-to-clean anti-graffiti nano-coating for the automobile finish comprises the following steps:
adding 2,2, 2-trifluoroethylamine, pyridine, tetrachlorosilane and a catalyst into a three-neck flask, reacting for 6-8h at 0-5 ℃ under the condition of introducing nitrogen, after the reaction is finished, centrifugally separating, filtering and collecting filtrate, and removing the solvent in the filtrate under reduced pressure to obtain colorless transparent clear liquid with 100% of solid content and the molecular weight of 800-.
Further, the easy-to-clean anti-graffiti nano-coating for the automobile paint surface is characterized in that the catalyst is trimethyl aluminum.
Further, the silicone oil is one or any mixture of X-22-176F or X-22-176 DX;
further, the catalyst is one or any combination of aluminum chelate, titanium chelate or organic tin compound.
Further, the above easily-cleaned and anti-graffiti nano-coating for automobile paint surface is characterized in that the aluminum chelate is one or any combination of bis (ethyl acetoacetate) aluminum mono (acetylacetonate), tris (acetylacetonate) aluminum and ethyl acetoacetate aluminum diisopropoxide; the titanium chelate is one or any combination of zirconium chelate such as zirconium tetra (acetylacetonate) and bis (butoxy) bis (acetylacetonate) zirconium, titanium tetra (acetylacetonate) and bis (butoxy) bis (acetylacetonate) titanium; the organic tin compound is one or any combination of organic tin compounds such as dibutyltin diacetate, dibutyltin dilaurate, dibutyltin dioctoate and the like.
Further, the scrawling-resistant auxiliary agent is one or any mixture of dikao auxiliary agent TEGO 5000N or Silixan A200; the wear-resisting agent is digao NANOCRYL C150.
Further, the easy-to-clean anti-graffiti nano coating for the automobile finish is characterized in that the medium-boiling point mixed solvent is one or any combination of xylene, propylene glycol methyl ether acetate, butyl acetate, an aromatic solvent S-100, petroleum essence and dearomatized alkane-D40; the high-boiling point solvent is one or any combination of ethylene glycol butyl ether acetate, an aromatic hydrocarbon solvent s150, an aromatic hydrocarbon solvent s200, diethylene glycol butyl ether acetate, dipropylene glycol dimethyl ether and dearomatized alkane-D80.
Further, the easy-to-clean anti-graffiti nano-coating for the automobile paint surface is prepared by using Dow Corning Z-6040 as an adhesion promoter.
The second technical scheme provided by the invention is as follows:
the construction process of the easy-to-clean anti-doodling nano coating for the automobile finish comprises the following steps: wetting and pouring the liquid on the superfine fiber cloth by using a superfine fiber cleaning cloth sleeved on a special sponge, painting the superfine fiber cloth on the surface of the vehicle paint in a circle drawing mode, waiting for 2-5 minutes, wiping off the redundant coating by using a superfine fiber towel until the constructed surface has no coating residue, and carrying out various performance tests after standing for 3-7 days.
Compared with the prior art, the technical scheme provided by the invention has the following technical advantages:
1. the technical scheme provided by the invention adopts the ultrathin nano coating with the thickness of 100-200nm, and in the curing process, the functionalized nano silicon dioxide particles can be arranged to form a compact stacked structure and combined with a silazane network in a covalent form to form a three-dimensional network structure, so that the coating has high density and can effectively resist the immersion of various stains;
2. the technical scheme provided by the invention has super strong scrawling resistance, can resist various pollutants, is easy to clean and is not sticky;
3. according to the technical scheme provided by the invention, the coating has high wear resistance, strong scratch resistance and strong washing resistance, the hardness of 8H is high, and the protective aging of an automobile paint film is greatly improved
4. The technical scheme provided by the invention adopts normal temperature curing or low temperature curing, has simple construction process and easy operation, and is beneficial to large-scale commercial construction.
Detailed Description
The following claims are presented to illustrate the invention in further detail in connection with the detailed description, but not to limit the invention in any way.
Example 1
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 30g of P22 resin, 1g of silicone oil X-22-176F, 0.2g of tetraisopropyl titanate, Z-60400.5g of Dow Corning, 50001g of Digao auxiliary agent TEGO, 1501.5g of Digao NANOCRYL C, 19.74g of xylene, 6.32g of dearomatized alkane-D4029.74g.
Example 2
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: p22 resin 38, silicone oil X-22-176F 0.5g, aluminum tris (acetylacetonate) 0.2g, bis (butoxy) bis (acetylacetonate) titanium 0.1g, Dow Corning Z-60400.5g, Digao adjuvant TEGO 50001g, Digao NANOCRYL C1501.5 g, xylene 16.71g, butyl acetate 22.54g, dipropylene glycol dimethyl ether 18.95 g.
Example 3
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 30g of P22 resin, 1g of silicone oil X-22-176DX, 0.1g of aluminum tris (acetylacetonate), 0.1g of ethyl aluminum diisopropoxide acetoacetate, 0.32g of Dow Corning Z-60400.5g, 50001g of Digao auxiliary agent TEGO, 1501.5g of Digao NANOCRYL C, 9.74g of arene alkane, 16g of propylene glycol methyl ether acetate, 10.32g of butyl acetate, 5g of ethylene glycol butyl ether acetate, 5g of dipropylene glycol dimethyl ether and 809.74g of dearomatized alkane.
Example 4
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 30g of P22 resin, 1g of silicone oil X-22-176DX, 0.1g of tetraisopropyl titanate, 0.1g of dibutyltin diacetate, Dow Corning Z-60400.5g, Silixan A2001.5 g, Digao NANOCRYL C1501.5 g, 19.59g of petroleum essence, 26.12g of butyl acetate and 19.59g of diethylene glycol monobutyl ether acetate.
Example 5
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 32g of P22 resin, 1g of silicone oil X-22-176F, 0.2g of dibutyltin diacetate, Z-60400.5g of Dow Corning, Silixan A2001.5 g, Digao NAOCRYL C1503g, 18g of propylene glycol monomethyl ether acetate, S-10024.52 g of aromatic hydrocarbon solvent, s20010.14g of aromatic hydrocarbon solvent and 9.0g of dipropylene glycol dimethyl ether.
Example 6
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 30g of P22 resin, 1g of silicone oil X-22-176F, 0.2g of bis (butoxy) bis (acetylacetone) titanium, Dow Corning Z-60401.0 g, TEGO 50000.5 g of digao auxiliary agent, Silixan A2001.5 g, Digao NANOCRYLC1503g, xylene 18.99g, 5.32g of propylene glycol methyl ether acetate, dearomatized alkane-D4020 g and dearomatized alkane-D8018.49g.
Example 7
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 33g of P22 resin, 1g of silicone oil X-22-176F, 0.2g of tetraisopropyl titanate, 3g of Dow Corning Z-60400.5g, 50001.5 g of Digao auxiliary agent TEGO, 2001.5 g of Silixan A, 25 g of Digao NANOCRYLC1503g, 18.99g of dimethylbenzene, 13g of butyl acetate, 0.32g of dearomatized alkane-D4010, and 16.99g of diethylene glycol butyl ether acetate.
Example 8
The invention provides an easy-to-clean anti-graffiti nano coating for an automobile paint surface, which comprises the following components in parts by weight: 30g of P22 resin, 1.5g of silicone oil X-22-176F, 1.5g of silicone oil X-22-176DX, 0.2g of aluminum bis (ethyl acetoacetate) mono (acetylacetone), Z-60400.5g of Dow Corning, 50000.5 g of Digao auxiliary agent TEGO, 2001.5 g of Silixan, 1503g of Digao NANOCRYL C, 18.84g of dimethylbenzene, 4.12g of dearomatized alkane-D4024, and 18.34g of aromatic solvent s15018.
The preparation method of the P22 resin in any of the embodiments 1 to 8 comprises the following steps:
the preparation method of the P22 resin comprises the following steps: in a 1000ml three-necked flask equipped with a thermometer, reflux condenser and stirrer, 11.2g of 2,2, 2-trifluoroethylamine, 60g of dry pyridine and 8.68g of tetrachlorosilane and 0.15g of a trimethylaluminum catalyst were charged, the reaction temperature was controlled at 0 to 5 ℃, 6 to 8H was reacted under nitrogen, and after completion of the reaction, the solid product was removed by centrifugal separation and subsequent filtration. The solvent was removed from the filtrate under reduced pressure (50 ℃, 5 mm Hg, 3 hours) to give 6.8 g of a colorless, transparent, clear liquid with 100% solids in 74.1% yield and a molecular weight in the range of 800-.
The reaction mechanism is as follows:
the method for preparing the easy-to-clean anti-graffiti nano-coating for the automobile paint surface, which is described in any one of the embodiments 1 to 8, comprises the following steps:
1) weighing the components according to the mass numbers of any one of the embodiments 1 to 8;
2) putting P22 resin into a 500ml beaker, respectively adding 39.25-46.06 parts of medium boiling point mixed solvent and high boiling point solvent, stirring uniformly on a high-speed stirrer for 10min at 500r/min, then continuously adding silicone oil, catalyst, adhesion promoter, anti-doodling auxiliary agent and wear-resisting agent, adjusting the rotating speed to 1500r/min, and continuously stirring for 30-60 min to obtain the anti-doodling nano coating liquid with the easily cleaned automobile finish.
The construction process comprises the following steps: wetting liquid by using a superfine fiber cleaning cloth sleeved on a special sponge, pouring the liquid on the superfine fiber cloth, painting the liquid on the surface of the car paint in a circle drawing mode, waiting for 2-5 minutes, wiping off redundant coatings by using a superfine fiber towel until no coating remains on the surface after construction, carrying out various performance tests after placing for 3-7 days, wherein the thickness of the nano coating is 100-200nm
In order to prove the effect of the technical scheme provided by the application, a comparative experiment example of the technical scheme provided by the application is given below, and the preparation method and the construction process of the experimental scheme are the same as those provided in the embodiment.
The coatings in examples 1 to 8, and comparative examples 1 to 5 were tested as follows:
and (3) hardness testing: scratches were detected by pushing a mitsubishi pencil at a 45 degree angle over the coating surface.
Scratch resistance: 1 immersed 3M bristle brush was placed on the coating surface and then moved back and forth under a load of 1kg, the brush was moved over a distance of more than 30cm, and a rubbing test was performed 100 times, and then surface scratches were confirmed.
Hydrophobic angle: the measurement was carried out with a ZR-SDJ-QH6 contact angle measuring apparatus.
Roll angle: the measurement was carried out with a ZR-SDJ-QH6 contact angle measuring apparatus.
Smoothness: the treated surface was wiped with a dry towel, and the smoothness of the wiped surface was confirmed.
Scrawling resistance: the sample was marked "#" using a ZEBRA oil pen (black, blue and red), each scratch was not less than 3cm in length, left to dry for 2min, applied with a vertical force of 1KG to the surface, and wiped with a paper towel.
Washing fastness: the durability test was carried out using a washing tester, and the state of the coating-treated surface after 500 back and forth washes was confirmed by microscopic magnification of 50 times.
The test data in examples 1 to 8 are as follows:
the test data in comparative examples 1 to 5 are as follows:
the above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. The easy-to-clean anti-graffiti nano coating for the automobile paint surface is characterized by comprising the following components in parts by weight: 30-40 parts of P22 resin, 0.5-3 parts of silicone oil, 0.2-0.3 part of catalyst, 0.3-1 part of adhesion promoter, 1-3 parts of anti-doodling assistant, 1.5-3 parts of wear-resisting agent, 39.25-46.06 parts of medium boiling point mixed solvent and 16.99-19.74 parts of high boiling point solvent.
2. The easy-to-clean anti-graffiti nano-coating for automobile finishes as claimed in claim 1, wherein the P22 resin is prepared by the following steps:
adding 2,2, 2-trifluoroethylamine, pyridine, tetrachlorosilane and a catalyst into a three-neck flask, reacting for 6-8h at 0-5 ℃ under the condition of introducing nitrogen, after the reaction is finished, centrifugally separating, filtering and collecting filtrate, and removing the solvent in the filtrate under reduced pressure to obtain colorless transparent clear liquid with 100% of solid content and the molecular weight of 800-.
3. The easy-to-clean anti-graffiti nanocoating for automotive finishes as claimed in claim 2 wherein said catalyst is trimethylaluminum.
4. The easy-to-clean anti-graffiti nanocoating for automotive finishes as claimed in claim 1 wherein said silicone oil is one or any mixture of X-22-176F or X-22-176 DX;
5. the easy-to-clean anti-graffiti nanocoating for automotive finishes as claimed in claim 1 wherein said catalyst is one or any combination of aluminum chelate or titanium chelate or organotin compound.
6. The easy-to-clean anti-graffiti nanocoating for automotive finishes as claimed in claim 5, wherein said aluminum chelate is one or any combination of aluminum bis (ethylacetoacetate) mono (acetylacetonate), aluminum tris (acetylacetonate), aluminum ethyl acetoacetate diisopropoxide; the titanium chelate is one or any combination of zirconium chelate such as zirconium tetra (acetylacetonate) and bis (butoxy) bis (acetylacetonate) zirconium, titanium tetra (acetylacetonate) and bis (butoxy) bis (acetylacetonate) titanium; the organic tin compound is one or any combination of organic tin compounds such as dibutyltin diacetate, dibutyltin dilaurate, dibutyltin dioctoate and the like.
7. The easy-to-clean anti-graffiti nano-coating for automotive finishes as claimed in claim 1, wherein the anti-graffiti auxiliary is one or any mixture of digao auxiliary TEGO 5000N or Silixan A200; the wear-resisting agent is digao NANOCRYL C150.
8. The nano-coating for easy-cleaning anti-graffiti of automobile paint surface as claimed in claim 1, wherein the medium boiling point mixed solvent is selected from one or any combination of xylene, propylene glycol methyl ether acetate, butyl acetate, aromatic hydrocarbon solvent S-100, petroleum spirit, dearomatized alkane-D40; the high-boiling point solvent is one or any combination of ethylene glycol butyl ether acetate, an aromatic hydrocarbon solvent s150, an aromatic hydrocarbon solvent s200, diethylene glycol butyl ether acetate, dipropylene glycol dimethyl ether and dearomatized alkane-D80.
9. The easy-to-clean anti-graffiti nanocoating for automotive finishes as claimed in claim 1 wherein said adhesion promoter is dow corning Z-6040.
10. The process of claim 1 for applying an easy-to-clean anti-graffiti nanocoating for automotive finishes, comprising the steps of: wetting and pouring the liquid on the superfine fiber cloth by using a superfine fiber cleaning cloth sleeved on a special sponge, painting the superfine fiber cloth on the surface of the vehicle paint in a circle drawing mode, waiting for 2-5 minutes, wiping off the redundant coating by using a superfine fiber towel until the constructed surface has no coating residue, and carrying out various performance tests after standing for 3-7 days.
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| CN202010622140.8A CN111607323A (en) | 2020-07-01 | 2020-07-01 | Easy-to-clean anti-graffiti nano coating for automobile paint surface and construction process |
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Application publication date: 20200901 |