CN111320922A - High weather-proof anti-sticking coating and preparation method thereof - Google Patents
High weather-proof anti-sticking coating and preparation method thereof Download PDFInfo
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- CN111320922A CN111320922A CN201811535501.4A CN201811535501A CN111320922A CN 111320922 A CN111320922 A CN 111320922A CN 201811535501 A CN201811535501 A CN 201811535501A CN 111320922 A CN111320922 A CN 111320922A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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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
- C09D5/16—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
- 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
Abstract
The invention discloses a high weather-resistant anti-sticking coating and a preparation method thereof, wherein the high weather-resistant anti-sticking coating is composed of a main agent and a curing agent, and the ratio of the main agent to the curing agent is (95-105) by mass: (35-45), wherein the main agent comprises 40-60 parts by mass of resin, 2-6 parts by mass of solvent I, 0.5-2.5 parts by mass of solvent II, 1-3 parts by mass of nano-additive, 0.1-0.3 part by mass of defoaming agent, 4-8 parts by mass of silicone oil, 0.1-2 parts by mass of anti-settling agent, 10-30 parts by mass of pigment I, 5-35 parts by mass of filler and 0.1-1 part by mass of pigment II, and the curing agent is an aliphatic isocyanate curing agent. The high weather-resistant anti-sticking coating disclosed by the invention adopts the organic silicon modified hydroxyl acrylic resin as the main resin, can realize the complementation of the performances of the two resins, improves the hydrophobicity and the oleophobicity, and improves the wiping performance and the anti-sticking performance of the marker.
Description
Technical Field
The invention belongs to the technical field of anti-sticking coatings, and particularly relates to a high-weather-resistance anti-sticking coating and a preparation method thereof.
Background
Some merchants can paste advertisements on electric poles or buildings in order to enable more people to know their products, so that the city appearance is seriously influenced, visual pollution is also caused, and the anti-sticking paint has extremely strong anti-sticking and anti-doodling capabilities; but within the pair, it adheres tightly to the wall or the surface layer of the construction.
After the surface is coated with the anti-sticking paint, the small advertisement which takes paste, glue or non-setting adhesive as the binder can not be stuck or can not be firmly adhered even if the small advertisement is strongly stuck, can fall off when blown by wind and is not easy to be randomly painted and randomly drawn. In addition, the method can prevent the non-civilized actions such as graffiti, messy sticking and the like, and greatly improves the city appearance management of the city.
The domestic market of the anti-sticking paint is mainly permanent anti-graffiti anti-sticking paint with long service life, and the anti-sticking paint is mainly divided into fluororesin paint and silicone resin paint according to chemical components. However, the fluorine-containing resin is expensive and the cost of use is high. The organosilicon coating has low surface energy, excellent hydrophobicity and oleophobicity, solvent resistance, weather resistance, corrosion resistance and the like, but has poor adhesive force and slow drying speed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the high-weather-resistance anti-sticking coating, the adlets which use paste, glue or non-setting adhesive as the adhesive are not easy to stick on a paint film formed by the high-weather-resistance anti-sticking coating, the adlets are not firmly adhered even if being strongly adhered, and the coating has the characteristics of normal-temperature curing, environmental protection and high weather resistance.
The invention also aims to provide a preparation method of the high weather-resistant anti-sticking paint.
The purpose of the invention is realized by the following technical scheme.
The high weather-resistant anti-sticking coating comprises a main agent and a curing agent, wherein the ratio of the main agent to the curing agent is (95-105) by mass: (35-45), wherein the main agent comprises 40-60 parts by mass of resin, 2-6 parts by mass of solvent I, 0.5-2.5 parts by mass of solvent II, 1-3 parts by mass of nano-additive, 0.1-0.3 part by mass of defoaming agent, 4-8 parts by mass of silicone oil, 0.1-2 parts by mass of anti-settling agent, 10-30 parts by mass of pigment I, 5-35 parts by mass of filler and 0.1-1 part by mass of pigment II, the resin is organic silicon modified hydroxy acrylic resin, the solvent I is a mixed solvent of xylene and butyl acetate, the solvent II is a mixed dibasic acid ester with a boiling point of 160-230 ℃, the nano-additive is a water-based paint nano-additive, the defoaming agent is a silicon-containing defoaming agent or a silicon-free defoaming agent, the silicone oil is methyl silicone oil, the anti-settling agent is fumed silica, the pigment I is rutile type titanium dioxide, the filler is talcum powder, and the pigment II is pigment carbon black;
the curing agent is an aliphatic isocyanate curing agent.
In the above technical scheme, the aliphatic isocyanate is a trimer of hexamethylene diisocyanate.
In the technical scheme, the ratio of the xylene to the butyl acetate is (1-2) in parts by mass: (1-2).
In the technical scheme, the talcum powder is 100-300 meshes.
In the above technical scheme, the mixed dibasic acid ester is a DBE solvent.
In the technical scheme, the mass parts of the resin are 45-50, the mass part of the solvent I is 2.8-5, the mass part of the solvent II is 0.5-1.2, the mass part of the nano-additive is 1-1.5, the mass part of the defoaming agent is 0.15-0.2, the mass part of the silicone oil is 5.5-6, the mass part of the anti-settling agent is 0.7-1, the mass part of the pigment I is 18-20, the mass part of the filler is 15-22, and the mass part of the pigment II is 0.2-0.25.
The preparation method of the high weather-resistant anti-sticking coating comprises the following steps:
And 2, uniformly mixing the main agent and the curing agent for paint preparation.
The high weather-resistant anti-sticking coating disclosed by the invention adopts the organic silicon modified hydroxyl acrylic resin as the main resin, can realize the complementation of the performances of the two resins, improves the hydrophobicity and the oleophobicity, and improves the wiping performance and the anti-sticking performance of the marker. Meanwhile, aliphatic isocyanate curing agent is matched and selected, and a carbamate group is formed through the cross-linking reaction between hydroxyl and isocyanate group, so that the film forming material has the excellent performances of three resins of organic silicon, acrylic acid and polyurethane, and has the advantages of low surface energy, strong adhesive force, excellent performances of wear resistance, hydrophobicity, oleophobicity, weather resistance, scrawling resistance, adhesion resistance and the like. The use of the nano auxiliary agent can provide excellent functions of wear resistance, scratch resistance, doodling resistance, stain resistance, leveling and the like. The use of the defoaming agent can prevent the generation of foam in the production of the coating. And silicone oil with small surface tension is added into the system, so that the hydrophobicity, the oleophobicity, the scrawling resistance and the anti-sticking performance of the final coating are improved. The use of the filler with larger particle size (small mesh number) is helpful for constructing a rough structure as shown in figure 1 on the surface of the material, so that the small advertisement can not be pasted or even if the small advertisement is pasted strongly, media such as air or water and the like can enter the contact surface through gaps among particles with large particle size on the surface, and the small advertisement is very easy to fall off. And the weather resistance of the coating can be improved by using the rutile type titanium dioxide.
Drawings
FIG. 1 is a schematic diagram showing the rough structure of the surface of the high weather-resistant anti-sticking paint after the paint film is formed.
Wherein, 1 is a filler and 2 is a paint film.
Detailed Description
Medicine purchasing source
Resin: the modified hydroxyl acrylic resin is organic silicon modified hydroxyl acrylic resin, purchased from Gepeng silicon fluorine materials Co., Ltd, and contains 50% of solid content;
xylene: purchased from Qingdao oil refining chemical industry Limited liability company, solid content 99.9%;
butyl acetate: jin Yimeng, solid content 99.9%;
DBE solvent: the solid content is 99.9 percent;
nano-additive: 1070PF of Tengtian technology, solid content 100%;
defoaming agent: AFCONA 2727, modified silicone resin solution;
methyl silicone oil: yuan Jiangxi sea, solid content 98%;
fumed silica: hydrophobic type degussa R812S;
rutile type titanium dioxide: kemu brand, titanium dioxide content 93%;
talc powder: particle size 120 mesh, Haicheng Daifyan Utility Co., Ltd;
pigment carbon black: middle and north fine chemical industry, tinting strength 125%;
aliphatic isocyanate curing agent for hexamethylene diisocyanate trimer: bayer N75 curative, 16.5% isocyanate group content.
The following examples refer to the following instrument models and manufacturers:
the stirring and dispersion in the following examples were all carried out using a high-speed disperser: NETZSCH, model: mASTERMIX TM75；
An artificial accelerated aging box manufacturer: Q-Lab, type: LU-0801.
The test methods in the following examples are as follows:
adhesion test standard: GB/T9286-1998 test for marking out paint films of paints and varnishes
Water resistance test Standard: GB/T1733 + 1993 paint film water resistance determination method
Artificial aging resistance test standard: GB/T1865-1997 color paints and varnishes for artificial weathering and artificial radiation exposure (filtered xenon arc radiation)
Anti-sticking test standard: JG/T304-2011 anti-doodling and anti-sticking coating for buildings
Graffiti resistance test criteria: JG/T304-2011 anti-doodling and anti-sticking coating for buildings
The technical scheme of the invention is further explained by combining specific examples.
Examples 1 to 3
The preparation method of the high weather-resistant anti-sticking coating comprises the following steps:
TABLE 1
And 2, uniformly mixing the main agent and the curing agent for paint preparation, wherein the mass part ratio of the main agent to the curing agent in the step 2 in the embodiment 1-3 is shown in the table 2.
TABLE 2
In table 1, the raw materials in examples 1 to 3 were in the following order: the resin is organosilicon modified hydroxyl acrylic resin of Gepeng silicon fluorine material company Limited; the first solvent is a mixed solvent of xylene and butyl acetate in a mass ratio of 1: 1; the second solvent is a DBE solvent with the boiling point of 190-220 ℃; the nano-additive is a macromolecular functional material with low surface energy, and is 1070PF of Tengtian technology; the defoaming agent is an organic silicon defoaming agent, specifically AFCONA 2727; the silicone oil is methyl silicone oil; the anti-settling agent is fumed silica; the first pigment is rutile titanium dioxide; the filler is 120 meshes of talcum powder; pigment II is pigment carbon black; the curing agent is aliphatic isocyanate curing agent of hexamethylene diisocyanate trimer, and is specifically Bayer N75.
The high weather-resistant anti-sticking coating disclosed by the invention is applied to improving the adhesive force, water resistance, anti-sticking property, weather resistance and anti-graffiti property. The adhesion, water resistance, anti-sticking property, weather resistance and anti-graffiti property of the highly weather-resistant anti-sticking coating obtained in examples 1 to 3 are shown in the following table 3:
TABLE 3
Therefore, the multifunctional non-coatable non-stick coating has excellent adhesion, water resistance, anti-stick property, weather resistance and anti-graffiti property.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (7)
1. The high weather-resistant anti-sticking coating is characterized by comprising a main agent and a curing agent, wherein the ratio of the main agent to the curing agent is (95-105) by mass: (35-45), wherein the main agent comprises 40-60 parts by mass of resin, 2-6 parts by mass of solvent I, 0.5-2.5 parts by mass of solvent II, 1-3 parts by mass of nano-additive, 0.1-0.3 part by mass of defoaming agent, 4-8 parts by mass of silicone oil, 0.1-2 parts by mass of anti-settling agent, 10-30 parts by mass of pigment I, 5-35 parts by mass of filler and 0.1-1 part by mass of pigment II, the resin is organic silicon modified hydroxy acrylic resin, the solvent I is a mixed solvent of xylene and butyl acetate, the solvent II is a mixed dibasic acid ester with a boiling point of 160-230 ℃, the nano-additive is a water-based paint nano-additive, the defoaming agent is a silicon-containing defoaming agent or a silicon-free defoaming agent, the silicone oil is methyl silicone oil, the anti-settling agent is fumed silica, the pigment I is rutile type titanium dioxide, the filler is talcum powder, and the pigment II is pigment carbon black;
the curing agent is aliphatic isocyanate.
2. The highly weather-resistant release coating according to claim 1, wherein the aliphatic isocyanate is a trimer of hexamethylene diisocyanate.
3. The high weather-resistant anti-sticking coating as claimed in claim 2, wherein the ratio of the xylene to the butyl acetate is (1-2) by mass: (1-2).
4. The high weather-resistant anti-sticking coating as claimed in claim 3, wherein the talc powder is 100-300 mesh.
5. The highly weather-resistant anti-sticking coating according to claim 4, wherein the mixed dibasic acid ester is DBE solvent.
6. The paint with high weather resistance and anti-sticking property as claimed in claim 5, wherein the mass parts of the resin are 45-50, the mass part of the first solvent is 2.8-5, the mass part of the second solvent is 0.5-1.2, the mass part of the nano-additive is 1-1.5, the mass part of the defoaming agent is 0.15-0.2, the mass part of the silicone oil is 5.5-6, the mass part of the anti-settling agent is 0.7-1, the mass part of the first pigment is 18-20, the mass part of the filler is 15-22, and the mass part of the second pigment is 0.2-0.25.
7. The preparation method of the high weather-resistant anti-sticking coating as claimed in any one of claims 1 to 6, comprising the following steps:
step 1, preparing a main agent: uniformly mixing resin, a first added solvent I and a first added solvent II, adding a defoaming agent and a nano auxiliary agent, dispersing for 3-5 min, adding an anti-settling agent and silicone oil, dispersing for 3-5 min, then adding a pigment I, a filler and a pigment II in sequence, dispersing for 5-10 min at the rotating speed of 800-1000 r/min, dispersing for 20-25 min at the rotating speed of 3000-3300 r/min, then reducing the speed to 1500-1800r/min, then adding a residual solvent I and a residual solvent II, and continuously dispersing for 3-5 min, wherein the ratio of the first added solvent I to the residual solvent I is (1.5-1.6): 1, the ratio of the first added solvent II to the rest of the solvent II is (1.47-1.56): 1;
and 2, uniformly mixing the main agent and the curing agent for paint preparation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811535501.4A CN111320922A (en) | 2018-12-14 | 2018-12-14 | High weather-proof anti-sticking coating and preparation method thereof |
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| CN201811535501.4A CN111320922A (en) | 2018-12-14 | 2018-12-14 | High weather-proof anti-sticking coating and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961563A (en) * | 2021-02-03 | 2021-06-15 | 北京尚德智美环境科技有限公司 | Processing method of anti-sticking coating |
| CN115595052A (en) * | 2022-09-14 | 2023-01-13 | 洛阳乐卡粉末有限公司（Cn） | Anti-doodling powder coating and preparation method thereof |
| CN116063894A (en) * | 2022-12-14 | 2023-05-05 | 广州大学 | Preparation method and application of low-surface-energy antibacterial resin coating |
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| CN101585995A (en) * | 2009-07-08 | 2009-11-25 | 兰州迅美漆业科技有限公司 | Oil-based anti-graffiti adhesion resistant paint and preparation method thereof |
| CN101613563A (en) * | 2009-07-23 | 2009-12-30 | 东南大学 | A kind of preparation method of anti-graffiti coating for rail train carriage |
| CN101781519A (en) * | 2009-12-22 | 2010-07-21 | 北京航材百慕新材料技术工程股份有限公司 | Transparent anti-graffiti dirt-resistant anti-weathering coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112961563A (en) * | 2021-02-03 | 2021-06-15 | 北京尚德智美环境科技有限公司 | Processing method of anti-sticking coating |
| CN115595052A (en) * | 2022-09-14 | 2023-01-13 | 洛阳乐卡粉末有限公司（Cn） | Anti-doodling powder coating and preparation method thereof |
| CN116063894A (en) * | 2022-12-14 | 2023-05-05 | 广州大学 | Preparation method and application of low-surface-energy antibacterial resin coating |
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Application publication date: 20200623 |
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