CN102876150A - High weather resistant anti-pasting and doodling-proof water-based paint and preparing method thereof - Google Patents
High weather resistant anti-pasting and doodling-proof water-based paint and preparing method thereof Download PDFInfo
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- CN102876150A CN102876150A CN2011101975734A CN201110197573A CN102876150A CN 102876150 A CN102876150 A CN 102876150A CN 2011101975734 A CN2011101975734 A CN 2011101975734A CN 201110197573 A CN201110197573 A CN 201110197573A CN 102876150 A CN102876150 A CN 102876150A
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Abstract
The invention relates to a high weather resistant anti-pasting and doodling-proof water-based paint and preparing method thereof. The paint is a bi-component paint, wherein component A and component B are in a weight ratio of 4:1. The component A is composed of a hydroxyl-containing fluorocarbon emulsion, doodling-proof resin, a defoaming agent, a wetting agent and water. The component B is a hydrophilic isocyanate curing agent. The preparation method consists of: adding water and doodling-proof resin into the hydroxyl-containing fluorocarbon emulsion, then adding the defoaming agent and the wetting agent, and finally adding the isocyanate curing agent, thus obtaining the high weather resistant anti-pasting and doodling-proof water-based paint. Compared with the prior art, the doodling-proof component employed in the paint provided in the invention is not free, and its function is not easy to disappear; the employment of a fluorocarbon system ensures a high-quality weather resistant ability; at the same time, the product is a water-based product, the content of VOC is extremely low, and the effect on the environment is low, thus being an environmental friendly paint and also being able to be used for an indoor environment.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, especially relate to anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides and preparation method thereof.
Background technology
A large amount of illegal ad, rubbish appear on the present society, the informational influence of the in violation of rules and regulations advertisement such as carve a seal the appearance of the city, the particularly traffic guidance of many bus platforms and Bus information hurdle, substantially make with synthetic glass, if small advertisement has covered the synthetic glass surface, many information will be covered, and make troubles to people's lives, also require the utmost point to be discord with modern city, employ a large amount of manpowers, financial resources for this reason, removed this chronic disease, but produced little effect, also easily scratched the utility meter finishing coat.Present most of anti-doodling paints are such as the solvent-borne type anti-doodling paint, because the existence of solvent will impact the transparency of synthetic glass; The sticking power of most of aqueous anti-doodling paints on synthetic glass is undesirable, and anti-graffiti composition easily is free in the synthetic glass surface and can be present in coatingsurface simultaneously, has lost anti-graffiti function.Also because environment is comparatively abominable, expose to the sun and rain simultaneously, temperature variation is large, and sunshine is severe, makes many anti-doodling paints lose very soon corresponding function, becomes the large drawback that anti-doodling paint uses.
For addressing these problems, the present invention has developed a kind of high weather-proof anti-stick subsides anti-doodling paint of water-based, and the anti-graffiti composition of this product and coating base-material can not dissociate anti-graffiti composition because of Chemical bond, and function is difficult for disappearing; Adopt fluorine carbon system to guarantee high-quality weather-proof ability; This product is aqueous product simultaneously, and VOC content is few, and is low to environmental influence, is a kind of environment-friendly type coating, also can be used for indoor environment.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of environmental protection anti-graffiti water-borne coatings of high weather-proof anti-stick subsides more favourable, applied widely and preparation method thereof for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
The anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides is characterized in that this coating is for to be comprised of A component and B component, and the weight ratio of A component and B component is 4: 1;
Described A component comprises following component and weight part content:
Described B component is hydrophilic isocyanate curing agent, and NCO content wherein is 15-18wt%.
Described hydroxyl fluorine carbon emulsion is that hydroxy radical content is 1-3wt%, and fluorine content is the fluorine carbon emulsion of 15-25wt%, and what of fluorine content have decisive action to the length of durability of coating.
In the aqueous emulsion of dimethyl polysiloxane fluid that described anti-graffiti resin is hydroxyl or the tetrafluoroethylene modified acrylic acid emulsion one or both.
Described defoamer is broken alveolitoid silane defoamer.
Described wetting agent is polyether siloxane copolymer.
The preparation method of the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides is characterized in that, the method may further comprise the steps:
(1) get the raw materials ready according to following component and weight part content, raw material is that weight ratio is 4: 1 A component and B component, and the A component comprises following component and weight part content:
The B component is hydrophilic isocyanate curing agent, and NCO content wherein is 15-18wt%;
(2) first the hydroxyl fluorine carbon emulsion is dropped in the reactor by the prescription requirement;
(3) add entry and anti-graffiti resin to the hydroxyl fluorine carbon emulsion, and under the speed conditions of 600-1000rpm, stir 3-4h, make to mix;
(4) defoamer, wetting agent are dropped in the reactor successively, continue to stir 0.5-2.5h;
(5) evenly rear the shutdown more than the 6h to be mixed guarantees that coating mixes, and to wherein adding isocyanate curing agent, namely obtains the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.
Compared with prior art, the present invention has the following advantages:
(1) during this products solidifying, anti-graffiti resin energy and the isocyanate reaction of hydroxylic moiety arranged, participate in the crosslinked of coating, therefore anti-graffiti function is lasting;
(2) because the bulk resin that adopts is fluorine carbon emulsion, make weathering resistance and the contamination resistance energy advantages of coating;
(3) this product is aqueous systems, and VOC content is minimum, and is more favourable to environmental protection;
(4) this product is aqueous systems, and the base material relatively poor for anti-solvent ability also can use, and be widely applicable;
(5) this product chemistry is cross-linked into film, and paint film has desirable hardness and wear resistance, and protective capacities is permanent.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
The preparation method of the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides, the method may further comprise the steps:
(1) get the raw materials ready according to following component and weight part content, raw material is that weight ratio is 4: 1 A component and B component, and the A component comprises following component and weight part content:
The B component is hydrophilic isocyanate curing agent, and NCO content wherein is 15wt%,
The processing step of preparation above-mentioned coating:
First 75.0 parts of fluorine carbon emulsions are dropped in the reactor by the prescription requirement, keep stirring state, add 18.3 parts of water and 5.0 parts of anti-graffiti resins, and under the 600-1000RPM speed conditions, stirred 3 hours, make both even; 1.5 parts of wetting agents, 0.3 part of defoamer are dropped in the reactor successively, stirred 2 hours.Evenly rear the shutdown more than 6 hours to be mixed guarantees that coating mixes, weighing and bagging.
During use, to wherein adding isocyanate curing agent, namely obtain the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.
Embodiment 2～4
(A component prescription)
Implement 2～4 production technique with embodiment 1.
The technical requirements of embodiment 1～4 is as follows after tested:
Embodiment 5
The preparation method of the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides may further comprise the steps:
(1) gets the raw materials ready according to following component and weight part content, raw material is that weight ratio is 4: 1 A component and B component, the A component comprises following component and content: hydroxyl fluorine carbon emulsion 60kg, anti-graffiti resin 5kg, broken alveolitoid silane defoamer 0.2kg, wetting agent 1kg, water 10kg, the hydroxyl fluorine carbon emulsion is that hydroxy radical content is 1wt%, fluorine content is the fluorine carbon emulsion of 15wt%, what of fluorine content have decisive action to the length of durability of coating, anti-graffiti resin is the aqueous emulsion of dimethyl polysiloxane fluid of hydroxyl, wetting agent is polyether siloxane copolymer, the B component is hydrophilic isocyanate curing agent, and NCO content wherein is 16wt%
(2) first the hydroxyl fluorine carbon emulsion is dropped in the reactor by the prescription requirement;
(3) add entry and anti-graffiti resin to the hydroxyl fluorine carbon emulsion, and under the speed conditions of 600rpm, stir 4h, make to mix;
(4) defoamer, wetting agent are dropped in the reactor successively, continue to stir 0.5h;
(5) evenly rear the shutdown more than the 6h to be mixed guarantees that coating mixes, and during use, to wherein adding isocyanate curing agent, namely obtains the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.
Embodiment 6
The preparation method of the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides may further comprise the steps:
(1) gets the raw materials ready according to following component and weight part content, raw material is that weight ratio is 4: 1 A component and B component, the A component comprises following component and content: hydroxyl fluorine carbon emulsion 80kg, anti-graffiti resin 10kg, broken alveolitoid silane defoamer 0.5kg, wetting agent 3kg, water 30kg, the hydroxyl fluorine carbon emulsion is that hydroxy radical content is 3wt%, fluorine content is the fluorine carbon emulsion of 25wt%, what of fluorine content have decisive action to the length of durability of coating, anti-graffiti resin is the aqueous emulsion of dimethyl polysiloxane fluid of hydroxyl and the mixture of tetrafluoroethylene modified acrylic acid emulsion, wetting agent is polyether siloxane copolymer, the B component is hydrophilic isocyanate curing agent, and NCO content wherein is 18wt%
(2) first the hydroxyl fluorine carbon emulsion is dropped in the reactor by the prescription requirement;
(3) add entry and anti-graffiti resin to the hydroxyl fluorine carbon emulsion, and under the speed conditions of 1000rpm, stir 3h, make to mix;
(4) defoamer, wetting agent are dropped in the reactor successively, continue to stir 2.5h;
(5) evenly rear the shutdown more than the 6h to be mixed guarantees that coating mixes, and during use, to wherein adding isocyanate curing agent, namely obtains the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.
Claims (6)
1. the one kind high anti-graffiti water-borne coatings of weather-proof anti-stick subsides is characterized in that, this coating is for to be comprised of A component and B component, and the weight ratio of A component and B component is 4: 1;
Described A component comprises following component and weight part content:
Described B component is hydrophilic isocyanate curing agent, and NCO content wherein is 15-18wt%.
2. the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides according to claim 1 is characterized in that, described hydroxyl fluorine carbon emulsion is that hydroxy radical content is 1-3wt%, and fluorine content is the fluorine carbon emulsion of 15-25wt%.
3. the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides according to claim 1 is characterized in that, in the aqueous emulsion of dimethyl polysiloxane fluid that described anti-graffiti resin is hydroxyl or the tetrafluoroethylene modified acrylic acid emulsion one or both.
4. the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides according to claim 1 is characterized in that, described defoamer is broken alveolitoid silane defoamer.
5. the anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides according to claim 1 is characterized in that, described wetting agent is polyether siloxane copolymer.
6. the preparation method of the anti-graffiti water-borne coatings of the weather-proof anti-stick subsides of height as claimed in claim 1 is characterized in that, the method may further comprise the steps:
(1) get the raw materials ready according to following component and weight part content, raw material is that weight ratio is 4: 1 A component and B component, and the A component comprises following component and weight part content:
The B component is hydrophilic isocyanate curing agent, and NCO content wherein is 15-18wt%;
(2) first the hydroxyl fluorine carbon emulsion is dropped in the reactor by the prescription requirement;
(3) add entry and anti-graffiti resin to the hydroxyl fluorine carbon emulsion, and under the speed conditions of 600-1000rpm, stir 3-4h, make to mix;
(4) defoamer, wetting agent are dropped in the reactor successively, continue to stir 0.5-2.5h;
(5) evenly rear the shutdown more than the 6h to be mixed guarantees that coating mixes, and to wherein adding isocyanate curing agent, namely obtains the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101975734A CN102876150A (en) | 2011-07-14 | 2011-07-14 | High weather resistant anti-pasting and doodling-proof water-based paint and preparing method thereof |
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| CN2011101975734A CN102876150A (en) | 2011-07-14 | 2011-07-14 | High weather resistant anti-pasting and doodling-proof water-based paint and preparing method thereof |
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Cited By (7)
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| CN103483943A (en) * | 2013-09-30 | 2014-01-01 | 东来涂料技术（上海）有限公司 | Water-based corrosion-resistant decorative fluorocarbon paint and preparation method thereof |
| CN104946110A (en) * | 2015-06-17 | 2015-09-30 | 恒昌涂料（惠阳）有限公司 | Anti-doodling, anti-fouling, anti-sticking and high weather-resistant coating and preparation method thereof |
| CN106280946A (en) * | 2016-08-15 | 2017-01-04 | 广州大学 | Transparent durable aqueous anti-doodling coating and painting method thereof |
| CN110951332A (en) * | 2019-12-04 | 2020-04-03 | 武汉长弢新材料有限公司 | Stain-resistant fluorocarbon coating for building exterior wall and preparation method thereof |
| CN111349384A (en) * | 2020-04-15 | 2020-06-30 | 南京长江涂料有限公司 | Weather-resistant water-based sand textured paint and preparation method thereof |
| CN115449267A (en) * | 2022-11-10 | 2022-12-09 | 佛山市顺德区固得丽涂料有限公司 | Anti-sticking water-based paint and preparation and construction method thereof |
| CN115960495A (en) * | 2022-12-28 | 2023-04-14 | 广东省科学院化工研究所 | Hydrophilic self-cleaning fluorocarbon coating and preparation method and application thereof |
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| CN103483943A (en) * | 2013-09-30 | 2014-01-01 | 东来涂料技术（上海）有限公司 | Water-based corrosion-resistant decorative fluorocarbon paint and preparation method thereof |
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| CN106280946A (en) * | 2016-08-15 | 2017-01-04 | 广州大学 | Transparent durable aqueous anti-doodling coating and painting method thereof |
| CN110951332A (en) * | 2019-12-04 | 2020-04-03 | 武汉长弢新材料有限公司 | Stain-resistant fluorocarbon coating for building exterior wall and preparation method thereof |
| CN110951332B (en) * | 2019-12-04 | 2021-09-03 | 武汉长弢新材料有限公司 | Stain-resistant fluorocarbon coating for building exterior wall and preparation method thereof |
| CN111349384A (en) * | 2020-04-15 | 2020-06-30 | 南京长江涂料有限公司 | Weather-resistant water-based sand textured paint and preparation method thereof |
| CN111349384B (en) * | 2020-04-15 | 2021-10-12 | 南京长江涂料有限公司 | Weather-resistant water-based sand textured paint and preparation method thereof |
| CN115449267A (en) * | 2022-11-10 | 2022-12-09 | 佛山市顺德区固得丽涂料有限公司 | Anti-sticking water-based paint and preparation and construction method thereof |
| CN115960495A (en) * | 2022-12-28 | 2023-04-14 | 广东省科学院化工研究所 | Hydrophilic self-cleaning fluorocarbon coating and preparation method and application thereof |
| CN115960495B (en) * | 2022-12-28 | 2023-11-21 | 广东省科学院化工研究所 | Hydrophilic self-cleaning fluorocarbon coating and preparation method and application thereof |
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Application publication date: 20130116 |