CN102676034B - A kind of anti-graffiti coating being applicable to outdoor facilities and preparation method thereof - Google Patents
A kind of anti-graffiti coating being applicable to outdoor facilities and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of industrial coating, especially relate to a kind of anti-graffiti coating being applicable to outdoor facilities and preparation method thereof.Its graffiti coating mainly solved existing for prior art contains tackiness agent, on general surface, its sticking power is higher, the method re-using physics or chemistry after the set of malice scribble is removed, more difficult, and the technical problem of likely injured surface etc.Coating of the present invention is the single-component water-based coating of a kind of oxidation drying type, and its component and mass fraction are: fluorinated acrylate modified soybean oil urethane resin 30-65 part, auxiliary agent 1-10 part, pigment and filler 15-30 part, water 10-25 part.
Description
Technical field
The present invention relates to a kind of industrial coating, especially relate to a kind of anti-graffiti coating being applicable to outdoor facilities and preparation method thereof.
Background technology
In recent years, scribble as a kind of roadside culture, gradually known by people.But the scribble of malice also becomes and affects the clean and tidy large root of urban civilization.Graffiti coating is generally made up of water-based, oil-based ink or dyestuff, wherein often containing tackiness agent, on general surface, its sticking power is higher, so the method re-using physics or chemistry after the set of malice scribble is removed, often more difficult, and likely injured surface.It is obviously a kind of more effective, easy method that effects on surface applies anti-doodling paint in advance, and can also have the effect of certain protection against corrosion and protection concurrently.Anti-graffiti coating belongs to a kind of insulation blocking coating.The salient features of anti-graffiti coating and other coating is distinguished and is that the surface adhesion force through its application is low, is difficult to the attachment of contaminated thing.
Summary of the invention
The present invention is to provide a kind of anti-graffiti coating being applicable to outdoor facilities and preparation method thereof, its graffiti coating mainly solved existing for prior art contains tackiness agent, on general surface, its sticking power is higher, the method re-using physics or chemistry after the set of malice scribble is removed, more difficult, and the technical problem of likely injured surface etc.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of anti-graffiti coating being applicable to outdoor facilities of the present invention, it is characterized in that described coating is the single-component water-based coating of a kind of oxidation drying type, its component and mass fraction are: fluorinated acrylate modified soybean oil urethane resin 30-65 part, auxiliary agent 1-10 part, pigment and filler 15-30 part, water 10-25 part.The present invention uses soybean oil to prepare polyvalent alcohol as raw material.Soybean oil, as a kind of plant siccative oil, has unsaturated fatty acids chain in its molecular chain, can autoxidation be cross-linked in atmosphere.Have many advantages with unsaturated fatty acids preparation or the coating products of modification, as suitability widely, excellent adhesion property, quick-drying, good early stage water tolerance, gloss is high.This type of oxidation drying coating is often applied to industrial machinery, the priming paint of parts, finish paint, as heat exchanger, cast iron equipment, bearing etc.So, select soybean oil to prepare polyurethane coating, rate of drying and the film strength of product can be improved, reduce the negative effect brought owing to introducing aqueous monomers.
As preferably, component and the mass fraction of described fluorinated acrylate modified soybean oil urethane resin are: fluorinated acrylate monomer 9.4-29.8 parts, soybean oil polyurethane dispersing liquid 70-90 part, initiator 0.2-0.6 part.
As preferably, described fluorinated acrylate monomer is one or more mixtures in methacrylic acid-2,2,2-trifluoro ethyl ester, Hexafluorobutyl mathacrylate.In order to the anti-scribble performance of the mechanical property and film that strengthen film further, one or more mixing that present invention employs in methacrylic acid-2,2,2-trifluoro ethyl ester, Hexafluorobutyl mathacrylate carry out modified soybean oil polyurethane coating.This mixing fluorinated acrylate is polymerized by initiator, owing to containing fluorine-containing side chain in its molecular structure, can be used for improving the anti-scribble performance of coating and the surface tension reducing film.
As preferably, described pigment and filler are one or more mixtures in titanium dioxide, zinc sulfide white and aluminium powder.
As preferably, described auxiliary agent is one or more mixtures in dispersion agent, siccative, matting agent, anti-wear agent.
A kind of preparation method being applicable to the anti-graffiti coating of outdoor facilities, it is characterized in that described method is: fluorinated acrylate monomer, soybean oil polyurethane dispersing liquid, initiator are added by weight in reactor, stir, heating, fully reacts under nitrogen protection condition; By pigment and filler, auxiliary agent, enough moisture Homogeneous phase mixing, after skin grinder or high speed dispersor dispersion, discharging, obtains described product.
As preferably, the preparation of described soybean oil polyurethane dispersing liquid: soybean oil, hydrogen peroxide and formic acid are joined by weight in reactor, keeps system temperature to be 40-55 DEG C of fully reaction, obtains liquid A after removing moisture; Liquid A and Virahol, methyl alcohol and the fluoroboric acid measured are joined in reactor, keeps system temperature to be 50-60 DEG C of fully reaction, remove moisture and obtain liquid B; By liquid B and isophorone diisocyanate, 2; 2-dimethylol propionic acid joins in reactor; under nitrogen protection and churned mechanically condition; fully react at 78-82 DEG C; after add triethylamine and distilled water and after high speed dispersion agent dispersion; discharging, namely obtains described soybean oil polyurethane dispersing liquid.
As preferably, described fluorinated acrylate monomer, soybean oil polyurethane dispersing liquid, initiator being added in reactor is by weight heated to 70-90 DEG C, and the reaction times is 3-5 hour.
As preferably, the described reaction times joined by weight in reactor by soybean oil, hydrogen peroxide and formic acid is 23-25 hour; Be 1-3 hour by liquid A with Virahol, methyl alcohol and fluoroboric acid reaction times joined in reactor of measuring; Be 1-3 hour by liquid B and isophorone diisocyanate, 2, the 2-dimethylol propionic acids reaction times joined in reactor.
Therefore, the present invention uses soybean oil to prepare polyvalent alcohol as raw material, has suitability widely, excellent adhesion property, quick-drying, good early stage water tolerance, gloss high, can improve rate of drying and the film strength of product, reduces the negative effect brought owing to introducing aqueous monomers.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of anti-graffiti coating being applicable to outdoor facilities of this example, its component and mass fraction are: soybean oil polyurethane dispersing liquid (solid content 30%) 42 parts, methacrylic acid-2,2,2-trifluoro ethyl ester 23.8 parts, pigment and filler 28 parts, auxiliary agent 6 parts, initiator 0.2 part.
Its preparation method is:
A. soybean oil, hydrogen peroxide and formic acid are joined in reactor by weight, keep system temperature to be 40 DEG C of reactions 24 hours, after removing moisture, obtain liquid A; Liquid A and Virahol, methyl alcohol and the fluoroboric acid measured are joined in reactor, keeps system temperature to be 50 DEG C of reactions 2 hours, remove moisture and obtain liquid B; By liquid B and isophorone diisocyanate, 2,2-dimethylol propionic acid joins in reactor, under nitrogen protection and churned mechanically condition, react 2 hours at 78 DEG C, after add triethylamine and distilled water and after high speed dispersion agent dispersion, discharging, namely obtains described soybean oil polyurethane dispersing liquid;
B. fluorinated acrylate monomer, soybean oil polyurethane dispersing liquid, initiator are added in reactor by weight, stir, be heated to 80 DEG C, react 4 hours under nitrogen protection condition; By pigment and filler, auxiliary agent, enough moisture Homogeneous phase mixing, after skin grinder or high speed dispersor dispersion, discharging, must be applicable to the anti-graffiti coating of outdoor facilities.
Embodiment 2: a kind of anti-graffiti coating being applicable to outdoor facilities of this example, its component and mass fraction are: soybean oil polyurethane dispersing liquid (solid content 30%) 45 parts, Hexafluorobutyl mathacrylate 12 parts, methacrylic acid ten difluoro butyl ester 13.8 parts, pigment and filler 22 parts, auxiliary agent 7 parts, initiator 0.2 part.
Its preparation method is:
A. soybean oil, hydrogen peroxide and formic acid are joined in reactor by weight, keep system temperature to be 50 DEG C of reactions 23 hours, after removing moisture, obtain liquid A; Liquid A and Virahol, methyl alcohol and the fluoroboric acid measured are joined in reactor, keeps system temperature to be 55 DEG C of reactions 2 hours, remove moisture and obtain liquid B; By liquid B and isophorone diisocyanate, 2,2-dimethylol propionic acid joins in reactor, under nitrogen protection and churned mechanically condition, react 2 hours at 78 DEG C, after add triethylamine and distilled water and after high speed dispersion agent dispersion, discharging, namely obtains described soybean oil polyurethane dispersing liquid;
B. Hexafluorobutyl mathacrylate, methacrylic acid ten difluoro butyl ester, soybean oil polyurethane dispersing liquid, initiator are added in reactor by weight, stir, be heated to 70 DEG C, react 5 hours under nitrogen protection condition; By pigment and filler, auxiliary agent, enough moisture Homogeneous phase mixing, after skin grinder or high speed dispersor dispersion, discharging, must be applicable to the anti-graffiti coating of outdoor facilities.
By above-mentioned example formulations paint spay-coating on tinplate sheet, after film-forming, formed paint film is carried out to the test of following technical feature: opacifying power, hardness of paint film, water tolerance, resistance to acids and bases, solvent resistant scrubbing character, anti-scribble.
The foregoing is only specific embodiments of the invention, but constitutional features of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (8)
1. one kind is applicable to the anti-graffiti coating of outdoor facilities, it is characterized in that described coating is the single-component water-based coating of a kind of oxidation drying type, its component and mass fraction are: fluorinated acrylate modified soybean oil urethane resin 30-65 part, auxiliary agent 1-10 part, pigment and filler 15-30 part, water 10-25 part; Component and the mass fraction of described fluorinated acrylate modified soybean oil urethane resin are: fluorinated acrylate monomer 9.4-29.8 part, soybean oil polyurethane dispersing liquid 70-90 part, initiator 0.2-0.6 part.
2. a kind of anti-graffiti coating being applicable to outdoor facilities according to claim 1, is characterized in that described fluorinated acrylate monomer is one or more mixtures in methacrylic acid-2,2,2-trifluoro ethyl ester, Hexafluorobutyl mathacrylate.
3. a kind of anti-graffiti coating being applicable to outdoor facilities according to claim 1, is characterized in that described pigment and filler are one or more mixtures in titanium dioxide, zinc sulfide white and aluminium powder.
4. a kind of anti-graffiti coating being applicable to outdoor facilities according to claim 1, is characterized in that described auxiliary agent is one or more mixtures in dispersion agent, siccative, matting agent, anti-wear agent.
5. one kind is applicable to the preparation method of the anti-graffiti coating of outdoor facilities, it is characterized in that described method is: be the fluorinated acrylate monomer of 9.4-29.8 part by mass fraction, the soybean oil polyurethane dispersing liquid of 70-90 part, the initiator of 0.2-0.6 part add in reactor, stir, heating, fully react under nitrogen protection condition, obtain fluorinated acrylate modified soybean oil urethane resin; By fluorinated acrylate modified soybean oil urethane resin and pigment and filler, auxiliary agent, enough moisture Homogeneous phase mixing, wherein fluorinated acrylate modified soybean oil urethane resin 30-65 part, auxiliary agent 1-10 part, pigment and filler 15-30 part, water 10-25 part, after skin grinder or high speed dispersor dispersion, discharging, obtains described product.
6. a kind of preparation method being applicable to the anti-graffiti coating of outdoor facilities according to claim 5, it is characterized in that the preparation of described soybean oil polyurethane dispersing liquid: join in reactor by soybean oil, hydrogen peroxide and formic acid, keep system temperature to be 40-55 DEG C of fully reaction, after removing moisture, obtain liquid A; Liquid A and Virahol, methyl alcohol and the fluoroboric acid measured are joined in reactor, keeps system temperature to be 50-60 DEG C of fully reaction, remove moisture and obtain liquid B; By liquid B and isophorone diisocyanate, 2; 2-dimethylol propionic acid joins in reactor; under nitrogen protection and churned mechanically condition; fully react at 78-82 DEG C; after add triethylamine and distilled water and after high speed dispersor dispersion; discharging, namely obtains described soybean oil polyurethane dispersing liquid.
7. a kind of preparation method being applicable to the anti-graffiti coating of outdoor facilities according to claim 5, it is characterized in that described fluorinated acrylate monomer, soybean oil polyurethane dispersing liquid, initiator being added in reactor is by weight heated to 70-90 DEG C, the reaction times is 3-5 hour.
8. a kind of preparation method being applicable to the anti-graffiti coating of outdoor facilities according to claim 6, is characterized in that the described reaction times joined in reactor by soybean oil, hydrogen peroxide and formic acid is 23-25 hour; Be 1-3 hour by liquid A with Virahol, methyl alcohol and fluoroboric acid reaction times joined in reactor of measuring; Be 1-3 hour by liquid B and isophorone diisocyanate, 2, the 2-dimethylol propionic acids reaction times joined in reactor.
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CN104141231B (en) * | 2014-08-02 | 2016-08-24 | 甄曰菊 | A kind of fabric coating slurry and preparation method thereof |
CN104277699A (en) * | 2014-10-29 | 2015-01-14 | 芜湖县双宝建材有限公司 | High-strength modified waterborne polyurethane coating |
CN105482604B (en) * | 2015-12-26 | 2017-08-25 | 杭州吉华高分子材料股份有限公司 | A kind of aqueous anti-doodling paint and preparation method thereof |
CN106833333B (en) * | 2017-02-13 | 2019-10-25 | 江苏丰彩新型建材有限公司 | A kind of aqueous anti-doodling paint and preparation method thereof |
CN107163728A (en) * | 2017-06-16 | 2017-09-15 | 安徽康瑞高科新材料技术工程有限公司 | A kind of ultrafast dry anti-graffiti coating |
CN114163605B (en) * | 2021-12-03 | 2023-07-14 | 万华化学集团股份有限公司 | Vegetable oil-based fluorinated hydroxyl resin and preparation method and application thereof |
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